Commit | Line | Data |
a6ec74c1 |
1 | /* pp_pack.c |
2 | * |
4bb101f2 |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
73cb7263 |
4 | * 2000, 2001, 2002, 2003, 2004, 2005, by Larry Wall and others |
a6ec74c1 |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public |
7 | * License or the Artistic License, as specified in the README file. |
8 | * |
9 | */ |
10 | |
d31a8517 |
11 | /* |
12 | * He still hopefully carried some of his gear in his pack: a small tinder-box, |
13 | * two small shallow pans, the smaller fitting into the larger; inside them a |
14 | * wooden spoon, a short two-pronged fork and some skewers were stowed; and |
15 | * hidden at the bottom of the pack in a flat wooden box a dwindling treasure, |
16 | * some salt. |
17 | */ |
18 | |
166f8a29 |
19 | /* This file contains pp ("push/pop") functions that |
20 | * execute the opcodes that make up a perl program. A typical pp function |
21 | * expects to find its arguments on the stack, and usually pushes its |
22 | * results onto the stack, hence the 'pp' terminology. Each OP structure |
23 | * contains a pointer to the relevant pp_foo() function. |
24 | * |
25 | * This particular file just contains pp_pack() and pp_unpack(). See the |
26 | * other pp*.c files for the rest of the pp_ functions. |
27 | */ |
28 | |
29 | |
a6ec74c1 |
30 | #include "EXTERN.h" |
31 | #define PERL_IN_PP_PACK_C |
32 | #include "perl.h" |
33 | |
7212898e |
34 | #if PERL_VERSION >= 9 |
35 | #define PERL_PACK_CAN_BYTEORDER |
36 | #define PERL_PACK_CAN_SHRIEKSIGN |
37 | #endif |
38 | |
a6ec74c1 |
39 | /* |
a6ec74c1 |
40 | * Offset for integer pack/unpack. |
41 | * |
42 | * On architectures where I16 and I32 aren't really 16 and 32 bits, |
43 | * which for now are all Crays, pack and unpack have to play games. |
44 | */ |
45 | |
46 | /* |
47 | * These values are required for portability of pack() output. |
48 | * If they're not right on your machine, then pack() and unpack() |
49 | * wouldn't work right anyway; you'll need to apply the Cray hack. |
50 | * (I'd like to check them with #if, but you can't use sizeof() in |
51 | * the preprocessor.) --??? |
52 | */ |
53 | /* |
54 | The appropriate SHORTSIZE, INTSIZE, LONGSIZE, and LONGLONGSIZE |
55 | defines are now in config.h. --Andy Dougherty April 1998 |
56 | */ |
57 | #define SIZE16 2 |
58 | #define SIZE32 4 |
59 | |
60 | /* CROSSCOMPILE and MULTIARCH are going to affect pp_pack() and pp_unpack(). |
61 | --jhi Feb 1999 */ |
62 | |
1109a392 |
63 | #if U16SIZE > SIZE16 || U32SIZE > SIZE32 |
64 | # if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678 /* little-endian */ |
08ca2aa3 |
65 | # define OFF16(p) ((char*)(p)) |
66 | # define OFF32(p) ((char*)(p)) |
a6ec74c1 |
67 | # else |
1109a392 |
68 | # if BYTEORDER == 0x4321 || BYTEORDER == 0x87654321 /* big-endian */ |
a6ec74c1 |
69 | # define OFF16(p) ((char*)(p) + (sizeof(U16) - SIZE16)) |
70 | # define OFF32(p) ((char*)(p) + (sizeof(U32) - SIZE32)) |
71 | # else |
08ca2aa3 |
72 | ++++ bad cray byte order |
a6ec74c1 |
73 | # endif |
74 | # endif |
a6ec74c1 |
75 | #else |
08ca2aa3 |
76 | # define OFF16(p) ((char *) (p)) |
77 | # define OFF32(p) ((char *) (p)) |
a6ec74c1 |
78 | #endif |
79 | |
08ca2aa3 |
80 | #define COPY16(s,p) Copy(s, OFF16(p), SIZE16, char) |
81 | #define COPY32(s,p) Copy(s, OFF32(p), SIZE32, char) |
82 | #define CAT16(sv,p) sv_catpvn(sv, OFF16(p), SIZE16) |
83 | #define CAT32(sv,p) sv_catpvn(sv, OFF32(p), SIZE32) |
84 | |
85 | /* Only to be used inside a loop (see the break) */ |
86 | #define COPYVAR(s,strend,utf8,var,format) \ |
87 | STMT_START { \ |
88 | if (utf8) { \ |
89 | if (!next_uni_bytes(aTHX_ &s, strend, \ |
90 | (char *) &var, sizeof(var))) break; \ |
91 | } else { \ |
92 | Copy(s, (char *) &var, sizeof(var), char); \ |
93 | s += sizeof(var); \ |
94 | } \ |
95 | DO_BO_UNPACK(var, format); \ |
96 | } STMT_END |
97 | |
49704364 |
98 | /* Avoid stack overflow due to pathological templates. 100 should be plenty. */ |
99 | #define MAX_SUB_TEMPLATE_LEVEL 100 |
100 | |
66c611c5 |
101 | /* flags (note that type modifiers can also be used as flags!) */ |
08ca2aa3 |
102 | #define FLAG_UNPACK_WAS_UTF8 0x40 /* original had FLAG_UNPACK_DO_UTF8 */ |
103 | #define FLAG_UNPACK_PARSE_UTF8 0x20 /* Parse as utf8 */ |
49704364 |
104 | #define FLAG_UNPACK_ONLY_ONE 0x10 |
08ca2aa3 |
105 | #define FLAG_UNPACK_DO_UTF8 0x08 /* The underlying string is utf8 */ |
49704364 |
106 | #define FLAG_SLASH 0x04 |
107 | #define FLAG_COMMA 0x02 |
108 | #define FLAG_PACK 0x01 |
109 | |
a6ec74c1 |
110 | STATIC SV * |
111 | S_mul128(pTHX_ SV *sv, U8 m) |
112 | { |
113 | STRLEN len; |
114 | char *s = SvPV(sv, len); |
115 | char *t; |
116 | U32 i = 0; |
117 | |
118 | if (!strnEQ(s, "0000", 4)) { /* need to grow sv */ |
119 | SV *tmpNew = newSVpvn("0000000000", 10); |
120 | |
121 | sv_catsv(tmpNew, sv); |
122 | SvREFCNT_dec(sv); /* free old sv */ |
123 | sv = tmpNew; |
124 | s = SvPV(sv, len); |
125 | } |
126 | t = s + len - 1; |
127 | while (!*t) /* trailing '\0'? */ |
128 | t--; |
129 | while (t > s) { |
130 | i = ((*t - '0') << 7) + m; |
eb160463 |
131 | *(t--) = '0' + (char)(i % 10); |
132 | m = (char)(i / 10); |
a6ec74c1 |
133 | } |
134 | return (sv); |
135 | } |
136 | |
137 | /* Explosives and implosives. */ |
138 | |
139 | #if 'I' == 73 && 'J' == 74 |
140 | /* On an ASCII/ISO kind of system */ |
141 | #define ISUUCHAR(ch) ((ch) >= ' ' && (ch) < 'a') |
142 | #else |
143 | /* |
144 | Some other sort of character set - use memchr() so we don't match |
145 | the null byte. |
146 | */ |
147 | #define ISUUCHAR(ch) (memchr(PL_uuemap, (ch), sizeof(PL_uuemap)-1) || (ch) == ' ') |
148 | #endif |
149 | |
66c611c5 |
150 | /* type modifiers */ |
62f95557 |
151 | #define TYPE_IS_SHRIEKING 0x100 |
1109a392 |
152 | #define TYPE_IS_BIG_ENDIAN 0x200 |
153 | #define TYPE_IS_LITTLE_ENDIAN 0x400 |
154 | #define TYPE_ENDIANNESS_MASK (TYPE_IS_BIG_ENDIAN|TYPE_IS_LITTLE_ENDIAN) |
66c611c5 |
155 | #define TYPE_MODIFIERS(t) ((t) & ~0xFF) |
1109a392 |
156 | #define TYPE_NO_MODIFIERS(t) ((t) & 0xFF) |
157 | |
7212898e |
158 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
159 | #define SHRIEKING_ALLOWED_TYPES "sSiIlLxXnNvV" |
160 | #else |
161 | #define SHRIEKING_ALLOWED_TYPES "sSiIlLxX" |
162 | #endif |
163 | |
164 | #ifndef PERL_PACK_CAN_BYTEORDER |
165 | /* Put "can't" first because it is shorter */ |
166 | # define TYPE_ENDIANNESS(t) 0 |
167 | # define TYPE_NO_ENDIANNESS(t) (t) |
168 | |
169 | # define ENDIANNESS_ALLOWED_TYPES "" |
170 | |
171 | # define DO_BO_UNPACK(var, type) |
172 | # define DO_BO_PACK(var, type) |
173 | # define DO_BO_UNPACK_PTR(var, type, pre_cast) |
174 | # define DO_BO_PACK_PTR(var, type, pre_cast) |
175 | # define DO_BO_UNPACK_N(var, type) |
176 | # define DO_BO_PACK_N(var, type) |
177 | # define DO_BO_UNPACK_P(var) |
178 | # define DO_BO_PACK_P(var) |
66c611c5 |
179 | |
7212898e |
180 | #else |
181 | |
182 | # define TYPE_ENDIANNESS(t) ((t) & TYPE_ENDIANNESS_MASK) |
183 | # define TYPE_NO_ENDIANNESS(t) ((t) & ~TYPE_ENDIANNESS_MASK) |
184 | |
185 | # define ENDIANNESS_ALLOWED_TYPES "sSiIlLqQjJfFdDpP(" |
186 | |
187 | # define DO_BO_UNPACK(var, type) \ |
1109a392 |
188 | STMT_START { \ |
66c611c5 |
189 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 |
190 | case TYPE_IS_BIG_ENDIAN: var = my_betoh ## type (var); break; \ |
191 | case TYPE_IS_LITTLE_ENDIAN: var = my_letoh ## type (var); break; \ |
192 | default: break; \ |
193 | } \ |
194 | } STMT_END |
195 | |
7212898e |
196 | # define DO_BO_PACK(var, type) \ |
1109a392 |
197 | STMT_START { \ |
66c611c5 |
198 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 |
199 | case TYPE_IS_BIG_ENDIAN: var = my_htobe ## type (var); break; \ |
200 | case TYPE_IS_LITTLE_ENDIAN: var = my_htole ## type (var); break; \ |
201 | default: break; \ |
202 | } \ |
203 | } STMT_END |
204 | |
7212898e |
205 | # define DO_BO_UNPACK_PTR(var, type, pre_cast) \ |
1109a392 |
206 | STMT_START { \ |
66c611c5 |
207 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 |
208 | case TYPE_IS_BIG_ENDIAN: \ |
209 | var = (void *) my_betoh ## type ((pre_cast) var); \ |
210 | break; \ |
211 | case TYPE_IS_LITTLE_ENDIAN: \ |
212 | var = (void *) my_letoh ## type ((pre_cast) var); \ |
213 | break; \ |
214 | default: \ |
215 | break; \ |
216 | } \ |
217 | } STMT_END |
218 | |
7212898e |
219 | # define DO_BO_PACK_PTR(var, type, pre_cast) \ |
1109a392 |
220 | STMT_START { \ |
66c611c5 |
221 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 |
222 | case TYPE_IS_BIG_ENDIAN: \ |
223 | var = (void *) my_htobe ## type ((pre_cast) var); \ |
224 | break; \ |
225 | case TYPE_IS_LITTLE_ENDIAN: \ |
226 | var = (void *) my_htole ## type ((pre_cast) var); \ |
227 | break; \ |
228 | default: \ |
229 | break; \ |
230 | } \ |
231 | } STMT_END |
232 | |
7212898e |
233 | # define BO_CANT_DOIT(action, type) \ |
66c611c5 |
234 | STMT_START { \ |
235 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 |
236 | case TYPE_IS_BIG_ENDIAN: \ |
237 | Perl_croak(aTHX_ "Can't %s big-endian %ss on this " \ |
238 | "platform", #action, #type); \ |
239 | break; \ |
240 | case TYPE_IS_LITTLE_ENDIAN: \ |
241 | Perl_croak(aTHX_ "Can't %s little-endian %ss on this " \ |
242 | "platform", #action, #type); \ |
243 | break; \ |
244 | default: \ |
245 | break; \ |
246 | } \ |
247 | } STMT_END |
248 | |
7212898e |
249 | # if PTRSIZE == INTSIZE |
250 | # define DO_BO_UNPACK_P(var) DO_BO_UNPACK_PTR(var, i, int) |
251 | # define DO_BO_PACK_P(var) DO_BO_PACK_PTR(var, i, int) |
252 | # elif PTRSIZE == LONGSIZE |
253 | # define DO_BO_UNPACK_P(var) DO_BO_UNPACK_PTR(var, l, long) |
254 | # define DO_BO_PACK_P(var) DO_BO_PACK_PTR(var, l, long) |
255 | # else |
256 | # define DO_BO_UNPACK_P(var) BO_CANT_DOIT(unpack, pointer) |
257 | # define DO_BO_PACK_P(var) BO_CANT_DOIT(pack, pointer) |
258 | # endif |
1109a392 |
259 | |
7212898e |
260 | # if defined(my_htolen) && defined(my_letohn) && \ |
1109a392 |
261 | defined(my_htoben) && defined(my_betohn) |
7212898e |
262 | # define DO_BO_UNPACK_N(var, type) \ |
1109a392 |
263 | STMT_START { \ |
66c611c5 |
264 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 |
265 | case TYPE_IS_BIG_ENDIAN: my_betohn(&var, sizeof(type)); break;\ |
266 | case TYPE_IS_LITTLE_ENDIAN: my_letohn(&var, sizeof(type)); break;\ |
267 | default: break; \ |
268 | } \ |
269 | } STMT_END |
270 | |
7212898e |
271 | # define DO_BO_PACK_N(var, type) \ |
1109a392 |
272 | STMT_START { \ |
66c611c5 |
273 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 |
274 | case TYPE_IS_BIG_ENDIAN: my_htoben(&var, sizeof(type)); break;\ |
275 | case TYPE_IS_LITTLE_ENDIAN: my_htolen(&var, sizeof(type)); break;\ |
276 | default: break; \ |
277 | } \ |
278 | } STMT_END |
7212898e |
279 | # else |
280 | # define DO_BO_UNPACK_N(var, type) BO_CANT_DOIT(unpack, type) |
281 | # define DO_BO_PACK_N(var, type) BO_CANT_DOIT(pack, type) |
282 | # endif |
283 | |
1109a392 |
284 | #endif |
62f95557 |
285 | |
78d46eaa |
286 | #define PACK_SIZE_CANNOT_CSUM 0x80 |
a72c271b |
287 | #define PACK_SIZE_SPARE 0x40 |
78d46eaa |
288 | #define PACK_SIZE_MASK 0x3F |
289 | |
290 | |
291 | struct packsize_t { |
58c0bd94 |
292 | const unsigned char *array; |
78d46eaa |
293 | int first; |
294 | int size; |
295 | }; |
296 | |
297 | #define PACK_SIZE_NORMAL 0 |
298 | #define PACK_SIZE_SHRIEKING 1 |
299 | |
300 | /* These tables are regenerated by genpacksizetables.pl (and then hand pasted |
301 | in). You're unlikely ever to need to regenerate them. */ |
302 | #if 'J'-'I' == 1 |
303 | /* ASCII */ |
304 | unsigned char size_normal[53] = { |
305 | /* C */ sizeof(unsigned char), |
80a13697 |
306 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
78d46eaa |
307 | /* D */ LONG_DOUBLESIZE, |
80a13697 |
308 | #else |
309 | 0, |
310 | #endif |
78d46eaa |
311 | 0, |
312 | /* F */ NVSIZE, |
313 | 0, 0, |
314 | /* I */ sizeof(unsigned int), |
315 | /* J */ UVSIZE, |
316 | 0, |
317 | /* L */ SIZE32, |
318 | 0, |
319 | /* N */ SIZE32, |
320 | 0, 0, |
80a13697 |
321 | #if defined(HAS_QUAD) |
78d46eaa |
322 | /* Q */ sizeof(Uquad_t), |
80a13697 |
323 | #else |
324 | 0, |
325 | #endif |
78d46eaa |
326 | 0, |
327 | /* S */ SIZE16, |
328 | 0, |
329 | /* U */ sizeof(char), |
330 | /* V */ SIZE32, |
08ca2aa3 |
331 | /* W */ sizeof(unsigned char), |
332 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
78d46eaa |
333 | /* c */ sizeof(char), |
334 | /* d */ sizeof(double), |
335 | 0, |
336 | /* f */ sizeof(float), |
337 | 0, 0, |
338 | /* i */ sizeof(int), |
339 | /* j */ IVSIZE, |
340 | 0, |
341 | /* l */ SIZE32, |
342 | 0, |
343 | /* n */ SIZE16, |
344 | 0, |
a72c271b |
345 | /* p */ sizeof(char *) | PACK_SIZE_CANNOT_CSUM, |
80a13697 |
346 | #if defined(HAS_QUAD) |
78d46eaa |
347 | /* q */ sizeof(Quad_t), |
80a13697 |
348 | #else |
349 | 0, |
350 | #endif |
78d46eaa |
351 | 0, |
352 | /* s */ SIZE16, |
353 | 0, 0, |
354 | /* v */ SIZE16, |
7212898e |
355 | /* w */ sizeof(char) | PACK_SIZE_CANNOT_CSUM, |
78d46eaa |
356 | }; |
357 | unsigned char size_shrieking[46] = { |
358 | /* I */ sizeof(unsigned int), |
359 | 0, 0, |
360 | /* L */ sizeof(unsigned long), |
361 | 0, |
7212898e |
362 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
78d46eaa |
363 | /* N */ SIZE32, |
7212898e |
364 | #else |
365 | 0, |
366 | #endif |
78d46eaa |
367 | 0, 0, 0, 0, |
368 | /* S */ sizeof(unsigned short), |
369 | 0, 0, |
7212898e |
370 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
78d46eaa |
371 | /* V */ SIZE32, |
7212898e |
372 | #else |
373 | 0, |
374 | #endif |
78d46eaa |
375 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
376 | /* i */ sizeof(int), |
377 | 0, 0, |
378 | /* l */ sizeof(long), |
379 | 0, |
7212898e |
380 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
78d46eaa |
381 | /* n */ SIZE16, |
7212898e |
382 | #else |
383 | 0, |
384 | #endif |
78d46eaa |
385 | 0, 0, 0, 0, |
386 | /* s */ sizeof(short), |
387 | 0, 0, |
7212898e |
388 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
78d46eaa |
389 | /* v */ SIZE16 |
7212898e |
390 | #else |
391 | 0 |
392 | #endif |
78d46eaa |
393 | }; |
394 | struct packsize_t packsize[2] = { |
395 | {size_normal, 67, 53}, |
396 | {size_shrieking, 73, 46} |
397 | }; |
398 | #else |
399 | /* EBCDIC (or bust) */ |
08ca2aa3 |
400 | unsigned char size_normal[100] = { |
78d46eaa |
401 | /* c */ sizeof(char), |
402 | /* d */ sizeof(double), |
403 | 0, |
404 | /* f */ sizeof(float), |
405 | 0, 0, |
406 | /* i */ sizeof(int), |
407 | 0, 0, 0, 0, 0, 0, 0, |
408 | /* j */ IVSIZE, |
409 | 0, |
410 | /* l */ SIZE32, |
411 | 0, |
412 | /* n */ SIZE16, |
413 | 0, |
a72c271b |
414 | /* p */ sizeof(char *) | PACK_SIZE_CANNOT_CSUM, |
80a13697 |
415 | #if defined(HAS_QUAD) |
78d46eaa |
416 | /* q */ sizeof(Quad_t), |
80a13697 |
417 | #else |
418 | 0, |
419 | #endif |
78d46eaa |
420 | 0, 0, 0, 0, 0, 0, 0, 0, 0, |
421 | /* s */ SIZE16, |
422 | 0, 0, |
423 | /* v */ SIZE16, |
424 | /* w */ sizeof(char) | PACK_SIZE_CANNOT_CSUM, |
425 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
426 | 0, 0, |
427 | /* C */ sizeof(unsigned char), |
80a13697 |
428 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
78d46eaa |
429 | /* D */ LONG_DOUBLESIZE, |
80a13697 |
430 | #else |
431 | 0, |
432 | #endif |
78d46eaa |
433 | 0, |
434 | /* F */ NVSIZE, |
435 | 0, 0, |
436 | /* I */ sizeof(unsigned int), |
437 | 0, 0, 0, 0, 0, 0, 0, |
438 | /* J */ UVSIZE, |
439 | 0, |
440 | /* L */ SIZE32, |
441 | 0, |
442 | /* N */ SIZE32, |
443 | 0, 0, |
80a13697 |
444 | #if defined(HAS_QUAD) |
78d46eaa |
445 | /* Q */ sizeof(Uquad_t), |
80a13697 |
446 | #else |
447 | 0, |
448 | #endif |
78d46eaa |
449 | 0, 0, 0, 0, 0, 0, 0, 0, 0, |
450 | /* S */ SIZE16, |
451 | 0, |
452 | /* U */ sizeof(char), |
7212898e |
453 | /* V */ SIZE32, |
08ca2aa3 |
454 | /* W */ sizeof(unsigned char), |
78d46eaa |
455 | }; |
456 | unsigned char size_shrieking[93] = { |
457 | /* i */ sizeof(int), |
458 | 0, 0, 0, 0, 0, 0, 0, 0, 0, |
459 | /* l */ sizeof(long), |
460 | 0, |
7212898e |
461 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
78d46eaa |
462 | /* n */ SIZE16, |
7212898e |
463 | #else |
464 | 0, |
465 | #endif |
78d46eaa |
466 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
467 | /* s */ sizeof(short), |
468 | 0, 0, |
7212898e |
469 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
78d46eaa |
470 | /* v */ SIZE16, |
7212898e |
471 | #else |
472 | 0, |
473 | #endif |
78d46eaa |
474 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
475 | 0, 0, 0, 0, 0, 0, 0, 0, 0, |
476 | /* I */ sizeof(unsigned int), |
477 | 0, 0, 0, 0, 0, 0, 0, 0, 0, |
478 | /* L */ sizeof(unsigned long), |
479 | 0, |
7212898e |
480 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
78d46eaa |
481 | /* N */ SIZE32, |
7212898e |
482 | #else |
483 | 0, |
484 | #endif |
78d46eaa |
485 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
486 | /* S */ sizeof(unsigned short), |
487 | 0, 0, |
7212898e |
488 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
78d46eaa |
489 | /* V */ SIZE32 |
7212898e |
490 | #else |
491 | 0 |
492 | #endif |
78d46eaa |
493 | }; |
494 | struct packsize_t packsize[2] = { |
08ca2aa3 |
495 | {size_normal, 131, 100}, |
78d46eaa |
496 | {size_shrieking, 137, 93} |
497 | }; |
498 | #endif |
499 | |
08ca2aa3 |
500 | STATIC U8 |
501 | next_uni_byte(pTHX_ char **s, const char *end, I32 datumtype) |
502 | { |
503 | UV val; |
504 | STRLEN retlen; |
505 | val = |
506 | UNI_TO_NATIVE(utf8n_to_uvuni(*s, end-*s, &retlen, |
507 | ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANY)); |
508 | /* We try to process malformed UTF-8 as much as possible (preferrably with |
509 | warnings), but these two mean we make no progress in the string and |
510 | might enter an infinite loop */ |
511 | if (retlen == (STRLEN) -1 || retlen == 0) |
512 | Perl_croak(aTHX_ "Malformed UTF-8 string in unpack"); |
513 | if (val >= 0x100) { |
514 | Perl_warner(aTHX_ packWARN(WARN_UNPACK), |
515 | "Character in '%c' format wrapped in unpack", |
516 | (int) datumtype); |
517 | val &= 0xff; |
518 | } |
519 | *s += retlen; |
520 | return val; |
521 | } |
522 | |
523 | #define NEXT_BYTE(utf8, s, strend, datumtype) ((utf8) ? \ |
524 | next_uni_byte(aTHX_ &(s), (strend), (datumtype)) : \ |
525 | *(U8 *)(s)++) |
526 | |
527 | STATIC bool |
528 | next_uni_bytes(pTHX_ char **s, char *end, char *buf, int buf_len) |
529 | { |
530 | UV val; |
531 | STRLEN retlen; |
532 | char *from = *s; |
533 | int bad = 0; |
534 | U32 flags = ckWARN(WARN_UTF8) ? |
535 | UTF8_CHECK_ONLY : (UTF8_CHECK_ONLY | UTF8_ALLOW_ANY); |
536 | for (;buf_len > 0; buf_len--) { |
537 | if (from >= end) return FALSE; |
538 | val = UNI_TO_NATIVE(utf8n_to_uvuni(from, end-from, &retlen, flags)); |
539 | if (retlen == (STRLEN) -1 || retlen == 0) { |
540 | from += UTF8SKIP(from); |
541 | bad |= 1; |
542 | } else from += retlen; |
543 | if (val >= 0x100) { |
544 | bad |= 2; |
545 | val &= 0xff; |
546 | } |
547 | *(U8 *)buf++ = val; |
548 | } |
549 | /* We have enough characters for the buffer. Did we have problems ? */ |
550 | if (bad) { |
551 | if (bad & 1) { |
552 | /* Rewalk the string fragment while warning */ |
553 | char *ptr; |
554 | flags = ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANY; |
555 | for (ptr = *s; ptr < from; ptr += UTF8SKIP(ptr)) { |
556 | if (ptr >= end) break; |
557 | utf8n_to_uvuni(ptr, end-ptr, &retlen, flags); |
558 | } |
559 | if (from > end) from = end; |
560 | } |
561 | if ((bad & 2) && ckWARN(WARN_UNPACK)) |
562 | Perl_warner(aTHX_ packWARN(WARN_UNPACK), |
563 | "Character(s) wrapped in unpack"); |
564 | } |
565 | *s = from; |
566 | return TRUE; |
567 | } |
568 | |
569 | STATIC bool |
570 | next_uni_uu(pTHX_ char **s, const char *end, I32 *out) |
571 | { |
572 | UV val; |
573 | STRLEN retlen; |
574 | char *from = *s; |
575 | val = UNI_TO_NATIVE(utf8n_to_uvuni(*s, end-*s, &retlen, UTF8_CHECK_ONLY)); |
576 | if (val >= 0x100 || !ISUUCHAR(val) || |
577 | retlen == (STRLEN) -1 || retlen == 0) { |
578 | *out = 0; |
579 | return FALSE; |
580 | } |
581 | *out = PL_uudmap[val] & 077; |
582 | *s = from; |
583 | return TRUE; |
584 | } |
78d46eaa |
585 | |
206947d2 |
586 | /* Returns the sizeof() struct described by pat */ |
028d1f6d |
587 | STATIC I32 |
49704364 |
588 | S_measure_struct(pTHX_ register tempsym_t* symptr) |
206947d2 |
589 | { |
49704364 |
590 | register I32 len = 0; |
206947d2 |
591 | register I32 total = 0; |
49704364 |
592 | int star; |
593 | |
206947d2 |
594 | register int size; |
595 | |
49704364 |
596 | while (next_symbol(symptr)) { |
80a13697 |
597 | int which = (symptr->code & TYPE_IS_SHRIEKING) |
598 | ? PACK_SIZE_SHRIEKING : PACK_SIZE_NORMAL; |
599 | int offset |
600 | = TYPE_NO_MODIFIERS(symptr->code) - packsize[which].first; |
206947d2 |
601 | |
49704364 |
602 | switch( symptr->howlen ){ |
603 | case e_no_len: |
604 | case e_number: |
605 | len = symptr->length; |
606 | break; |
607 | case e_star: |
608 | Perl_croak(aTHX_ "Within []-length '*' not allowed in %s", |
609 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
610 | break; |
611 | } |
612 | |
80a13697 |
613 | if ((offset >= 0) && (offset < packsize[which].size)) |
614 | size = packsize[which].array[offset] & PACK_SIZE_MASK; |
615 | else |
206947d2 |
616 | size = 0; |
78d46eaa |
617 | |
80a13697 |
618 | if (!size) { |
619 | /* endianness doesn't influence the size of a type */ |
620 | switch(TYPE_NO_ENDIANNESS(symptr->code)) { |
621 | default: |
622 | Perl_croak(aTHX_ "Invalid type '%c' in %s", |
623 | (int)TYPE_NO_MODIFIERS(symptr->code), |
624 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
625 | case '@': |
626 | case '/': |
627 | case 'U': /* XXXX Is it correct? */ |
628 | case 'w': |
629 | case 'u': |
630 | Perl_croak(aTHX_ "Within []-length '%c' not allowed in %s", |
631 | (int)symptr->code, |
632 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
633 | case '%': |
634 | size = 0; |
635 | break; |
636 | case '(': |
637 | { |
638 | tempsym_t savsym = *symptr; |
639 | symptr->patptr = savsym.grpbeg; |
640 | symptr->patend = savsym.grpend; |
641 | /* XXXX Theoretically, we need to measure many times at |
642 | different positions, since the subexpression may contain |
643 | alignment commands, but be not of aligned length. |
644 | Need to detect this and croak(). */ |
645 | size = measure_struct(symptr); |
646 | *symptr = savsym; |
647 | break; |
648 | } |
649 | case 'X' | TYPE_IS_SHRIEKING: |
650 | /* XXXX Is this useful? Then need to treat MEASURE_BACKWARDS. |
651 | */ |
652 | if (!len) /* Avoid division by 0 */ |
653 | len = 1; |
654 | len = total % len; /* Assumed: the start is aligned. */ |
655 | /* FALL THROUGH */ |
656 | case 'X': |
657 | size = -1; |
658 | if (total < len) |
659 | Perl_croak(aTHX_ "'X' outside of string in %s", |
660 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
661 | break; |
662 | case 'x' | TYPE_IS_SHRIEKING: |
663 | if (!len) /* Avoid division by 0 */ |
664 | len = 1; |
665 | star = total % len; /* Assumed: the start is aligned. */ |
666 | if (star) /* Other portable ways? */ |
667 | len = len - star; |
668 | else |
669 | len = 0; |
670 | /* FALL THROUGH */ |
671 | case 'x': |
672 | case 'A': |
673 | case 'Z': |
674 | case 'a': |
80a13697 |
675 | size = 1; |
676 | break; |
677 | case 'B': |
678 | case 'b': |
679 | len = (len + 7)/8; |
680 | size = 1; |
681 | break; |
682 | case 'H': |
683 | case 'h': |
684 | len = (len + 1)/2; |
685 | size = 1; |
686 | break; |
78d46eaa |
687 | |
80a13697 |
688 | case 'P': |
689 | len = 1; |
690 | size = sizeof(char*); |
78d46eaa |
691 | break; |
692 | } |
206947d2 |
693 | } |
694 | total += len * size; |
695 | } |
696 | return total; |
697 | } |
698 | |
49704364 |
699 | |
700 | /* locate matching closing parenthesis or bracket |
701 | * returns char pointer to char after match, or NULL |
702 | */ |
703 | STATIC char * |
704 | S_group_end(pTHX_ register char *patptr, register char *patend, char ender) |
18529408 |
705 | { |
49704364 |
706 | while (patptr < patend) { |
707 | char c = *patptr++; |
708 | |
709 | if (isSPACE(c)) |
710 | continue; |
711 | else if (c == ender) |
712 | return patptr-1; |
713 | else if (c == '#') { |
714 | while (patptr < patend && *patptr != '\n') |
715 | patptr++; |
716 | continue; |
717 | } else if (c == '(') |
718 | patptr = group_end(patptr, patend, ')') + 1; |
719 | else if (c == '[') |
720 | patptr = group_end(patptr, patend, ']') + 1; |
18529408 |
721 | } |
49704364 |
722 | Perl_croak(aTHX_ "No group ending character '%c' found in template", |
723 | ender); |
724 | return 0; |
18529408 |
725 | } |
726 | |
49704364 |
727 | |
728 | /* Convert unsigned decimal number to binary. |
729 | * Expects a pointer to the first digit and address of length variable |
730 | * Advances char pointer to 1st non-digit char and returns number |
731 | */ |
18529408 |
732 | STATIC char * |
49704364 |
733 | S_get_num(pTHX_ register char *patptr, I32 *lenptr ) |
734 | { |
735 | I32 len = *patptr++ - '0'; |
736 | while (isDIGIT(*patptr)) { |
737 | if (len >= 0x7FFFFFFF/10) |
738 | Perl_croak(aTHX_ "pack/unpack repeat count overflow"); |
739 | len = (len * 10) + (*patptr++ - '0'); |
740 | } |
741 | *lenptr = len; |
742 | return patptr; |
743 | } |
744 | |
745 | /* The marvellous template parsing routine: Using state stored in *symptr, |
746 | * locates next template code and count |
747 | */ |
748 | STATIC bool |
749 | S_next_symbol(pTHX_ register tempsym_t* symptr ) |
18529408 |
750 | { |
49704364 |
751 | register char* patptr = symptr->patptr; |
752 | register char* patend = symptr->patend; |
753 | |
754 | symptr->flags &= ~FLAG_SLASH; |
755 | |
756 | while (patptr < patend) { |
757 | if (isSPACE(*patptr)) |
758 | patptr++; |
759 | else if (*patptr == '#') { |
760 | patptr++; |
761 | while (patptr < patend && *patptr != '\n') |
762 | patptr++; |
763 | if (patptr < patend) |
764 | patptr++; |
765 | } else { |
766 | /* We should have found a template code */ |
767 | I32 code = *patptr++ & 0xFF; |
66c611c5 |
768 | U32 inherited_modifiers = 0; |
49704364 |
769 | |
770 | if (code == ','){ /* grandfather in commas but with a warning */ |
771 | if (((symptr->flags & FLAG_COMMA) == 0) && ckWARN(WARN_UNPACK)){ |
772 | symptr->flags |= FLAG_COMMA; |
773 | Perl_warner(aTHX_ packWARN(WARN_UNPACK), |
774 | "Invalid type ',' in %s", |
775 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
776 | } |
777 | continue; |
778 | } |
779 | |
780 | /* for '(', skip to ')' */ |
781 | if (code == '(') { |
782 | if( isDIGIT(*patptr) || *patptr == '*' || *patptr == '[' ) |
783 | Perl_croak(aTHX_ "()-group starts with a count in %s", |
784 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
785 | symptr->grpbeg = patptr; |
786 | patptr = 1 + ( symptr->grpend = group_end(patptr, patend, ')') ); |
787 | if( symptr->level >= MAX_SUB_TEMPLATE_LEVEL ) |
788 | Perl_croak(aTHX_ "Too deeply nested ()-groups in %s", |
789 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
790 | } |
791 | |
66c611c5 |
792 | /* look for group modifiers to inherit */ |
793 | if (TYPE_ENDIANNESS(symptr->flags)) { |
794 | if (strchr(ENDIANNESS_ALLOWED_TYPES, TYPE_NO_MODIFIERS(code))) |
795 | inherited_modifiers |= TYPE_ENDIANNESS(symptr->flags); |
796 | } |
797 | |
1109a392 |
798 | /* look for modifiers */ |
799 | while (patptr < patend) { |
800 | const char *allowed; |
801 | I32 modifier = 0; |
802 | switch (*patptr) { |
803 | case '!': |
804 | modifier = TYPE_IS_SHRIEKING; |
7212898e |
805 | allowed = SHRIEKING_ALLOWED_TYPES; |
1109a392 |
806 | break; |
7212898e |
807 | #ifdef PERL_PACK_CAN_BYTEORDER |
1109a392 |
808 | case '>': |
809 | modifier = TYPE_IS_BIG_ENDIAN; |
66c611c5 |
810 | allowed = ENDIANNESS_ALLOWED_TYPES; |
1109a392 |
811 | break; |
812 | case '<': |
813 | modifier = TYPE_IS_LITTLE_ENDIAN; |
66c611c5 |
814 | allowed = ENDIANNESS_ALLOWED_TYPES; |
1109a392 |
815 | break; |
7212898e |
816 | #endif |
1109a392 |
817 | default: |
818 | break; |
819 | } |
66c611c5 |
820 | |
1109a392 |
821 | if (modifier == 0) |
822 | break; |
66c611c5 |
823 | |
1109a392 |
824 | if (!strchr(allowed, TYPE_NO_MODIFIERS(code))) |
825 | Perl_croak(aTHX_ "'%c' allowed only after types %s in %s", *patptr, |
826 | allowed, symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
66c611c5 |
827 | |
828 | if (TYPE_ENDIANNESS(code | modifier) == TYPE_ENDIANNESS_MASK) |
1109a392 |
829 | Perl_croak(aTHX_ "Can't use both '<' and '>' after type '%c' in %s", |
830 | (int) TYPE_NO_MODIFIERS(code), |
831 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
66c611c5 |
832 | else if (TYPE_ENDIANNESS(code | modifier | inherited_modifiers) == |
833 | TYPE_ENDIANNESS_MASK) |
834 | Perl_croak(aTHX_ "Can't use '%c' in a group with different byte-order in %s", |
835 | *patptr, symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
836 | |
1109a392 |
837 | if (ckWARN(WARN_UNPACK)) { |
838 | if (code & modifier) |
839 | Perl_warner(aTHX_ packWARN(WARN_UNPACK), |
840 | "Duplicate modifier '%c' after '%c' in %s", |
841 | *patptr, (int) TYPE_NO_MODIFIERS(code), |
842 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
843 | } |
66c611c5 |
844 | |
1109a392 |
845 | code |= modifier; |
846 | patptr++; |
49704364 |
847 | } |
848 | |
66c611c5 |
849 | /* inherit modifiers */ |
850 | code |= inherited_modifiers; |
851 | |
49704364 |
852 | /* look for count and/or / */ |
853 | if (patptr < patend) { |
854 | if (isDIGIT(*patptr)) { |
855 | patptr = get_num( patptr, &symptr->length ); |
856 | symptr->howlen = e_number; |
857 | |
858 | } else if (*patptr == '*') { |
859 | patptr++; |
860 | symptr->howlen = e_star; |
861 | |
862 | } else if (*patptr == '[') { |
863 | char* lenptr = ++patptr; |
864 | symptr->howlen = e_number; |
865 | patptr = group_end( patptr, patend, ']' ) + 1; |
866 | /* what kind of [] is it? */ |
867 | if (isDIGIT(*lenptr)) { |
868 | lenptr = get_num( lenptr, &symptr->length ); |
869 | if( *lenptr != ']' ) |
870 | Perl_croak(aTHX_ "Malformed integer in [] in %s", |
871 | symptr->flags & FLAG_PACK ? "pack" : "unpack"); |
872 | } else { |
873 | tempsym_t savsym = *symptr; |
874 | symptr->patend = patptr-1; |
875 | symptr->patptr = lenptr; |
876 | savsym.length = measure_struct(symptr); |
877 | *symptr = savsym; |
878 | } |
879 | } else { |
880 | symptr->howlen = e_no_len; |
881 | symptr->length = 1; |
882 | } |
883 | |
884 | /* try to find / */ |
885 | while (patptr < patend) { |
886 | if (isSPACE(*patptr)) |
887 | patptr++; |
888 | else if (*patptr == '#') { |
889 | patptr++; |
890 | while (patptr < patend && *patptr != '\n') |
891 | patptr++; |
892 | if (patptr < patend) |
893 | patptr++; |
894 | } else { |
66c611c5 |
895 | if (*patptr == '/') { |
49704364 |
896 | symptr->flags |= FLAG_SLASH; |
897 | patptr++; |
66c611c5 |
898 | if (patptr < patend && |
899 | (isDIGIT(*patptr) || *patptr == '*' || *patptr == '[')) |
49704364 |
900 | Perl_croak(aTHX_ "'/' does not take a repeat count in %s", |
901 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
902 | } |
903 | break; |
904 | } |
18529408 |
905 | } |
49704364 |
906 | } else { |
907 | /* at end - no count, no / */ |
908 | symptr->howlen = e_no_len; |
909 | symptr->length = 1; |
910 | } |
911 | |
912 | symptr->code = code; |
913 | symptr->patptr = patptr; |
914 | return TRUE; |
18529408 |
915 | } |
49704364 |
916 | } |
917 | symptr->patptr = patptr; |
918 | return FALSE; |
18529408 |
919 | } |
920 | |
18529408 |
921 | /* |
08ca2aa3 |
922 | There is no way to cleanly handle the case where we should process the |
923 | string per byte in its upgraded form while it's really in downgraded form |
924 | (e.g. estimates like strend-s as an upper bound for the number of |
925 | characters left wouldn't work). So if we foresee the need of this |
926 | (pattern starts with U or contains U0), we want to work on the encoded |
927 | version of the string. Users are advised to upgrade their pack string |
928 | themselves if they need to do a lot of unpacks like this on it |
929 | */ |
930 | STATIC bool |
931 | need_utf8(const char *pat, const char *patend) |
932 | { |
933 | bool first = TRUE; |
934 | while (pat < patend) { |
935 | if (pat[0] == '#') { |
936 | pat++; |
937 | pat = memchr(pat, '\n', patend-pat); |
938 | if (!pat) return FALSE; |
939 | } else if (pat[0] == 'U') { |
940 | if (first || pat[1] == '0') return TRUE; |
941 | } else first = FALSE; |
942 | pat++; |
943 | } |
944 | return FALSE; |
945 | } |
946 | |
947 | STATIC char |
948 | first_symbol(const char *pat, const char *patend) { |
949 | while (pat < patend) { |
950 | if (pat[0] != '#') return pat[0]; |
951 | pat++; |
952 | pat = memchr(pat, '\n', patend-pat); |
953 | if (!pat) return 0; |
954 | pat++; |
955 | } |
956 | return 0; |
957 | } |
958 | |
959 | /* |
18529408 |
960 | =for apidoc unpack_str |
961 | |
7accc089 |
962 | The engine implementing unpack() Perl function. Note: parameters strbeg, new_s |
963 | and ocnt are not used. This call should not be used, use unpackstring instead. |
18529408 |
964 | |
965 | =cut */ |
966 | |
967 | I32 |
968 | Perl_unpack_str(pTHX_ char *pat, register char *patend, register char *s, char *strbeg, char *strend, char **new_s, I32 ocnt, U32 flags) |
a6ec74c1 |
969 | { |
49704364 |
970 | tempsym_t sym = { 0 }; |
08ca2aa3 |
971 | |
972 | if (flags & FLAG_UNPACK_DO_UTF8) flags |= FLAG_UNPACK_WAS_UTF8; |
973 | else if (need_utf8(pat, patend)) { |
974 | /* We probably should try to avoid this in case a scalar context call |
975 | wouldn't get to the "U0" */ |
976 | STRLEN len = strend - s; |
977 | s = bytes_to_utf8(s, &len); |
978 | SAVEFREEPV(s); |
979 | strend = s + len; |
980 | flags |= FLAG_UNPACK_DO_UTF8; |
981 | } |
982 | |
983 | if (first_symbol(pat, patend) != 'U' && (flags & FLAG_UNPACK_DO_UTF8)) |
984 | flags |= FLAG_UNPACK_PARSE_UTF8; |
985 | |
49704364 |
986 | sym.patptr = pat; |
987 | sym.patend = patend; |
988 | sym.flags = flags; |
989 | |
990 | return unpack_rec(&sym, s, s, strend, NULL ); |
991 | } |
992 | |
7accc089 |
993 | /* |
994 | =for apidoc unpackstring |
995 | |
608d3aed |
996 | The engine implementing unpack() Perl function. C<unpackstring> puts the |
997 | extracted list items on the stack and returns the number of elements. |
998 | Issue C<PUTBACK> before and C<SPAGAIN> after the call to this function. |
7accc089 |
999 | |
1000 | =cut */ |
1001 | |
1002 | I32 |
1003 | Perl_unpackstring(pTHX_ char *pat, register char *patend, register char *s, char *strend, U32 flags) |
1004 | { |
1005 | tempsym_t sym = { 0 }; |
08ca2aa3 |
1006 | |
1007 | if (flags & FLAG_UNPACK_DO_UTF8) flags |= FLAG_UNPACK_WAS_UTF8; |
1008 | else if (need_utf8(pat, patend)) { |
1009 | /* We probably should try to avoid this in case a scalar context call |
1010 | wouldn't get to the "U0" */ |
1011 | STRLEN len = strend - s; |
1012 | s = bytes_to_utf8(s, &len); |
1013 | SAVEFREEPV(s); |
1014 | strend = s + len; |
1015 | flags |= FLAG_UNPACK_DO_UTF8; |
1016 | } |
1017 | |
1018 | if (first_symbol(pat, patend) != 'U' && (flags & FLAG_UNPACK_DO_UTF8)) |
1019 | flags |= FLAG_UNPACK_PARSE_UTF8; |
1020 | |
7accc089 |
1021 | sym.patptr = pat; |
1022 | sym.patend = patend; |
1023 | sym.flags = flags; |
1024 | |
1025 | return unpack_rec(&sym, s, s, strend, NULL ); |
1026 | } |
1027 | |
49704364 |
1028 | STATIC |
1029 | I32 |
08ca2aa3 |
1030 | S_unpack_rec(pTHX_ tempsym_t* symptr, char *s, char *strbeg, char *strend, char **new_s ) |
49704364 |
1031 | { |
a6ec74c1 |
1032 | dSP; |
08ca2aa3 |
1033 | I32 datumtype, ai32; |
1034 | I32 len = 0; |
18529408 |
1035 | SV *sv; |
1036 | I32 start_sp_offset = SP - PL_stack_base; |
49704364 |
1037 | howlen_t howlen; |
a6ec74c1 |
1038 | |
a6ec74c1 |
1039 | I32 checksum = 0; |
92d41999 |
1040 | UV cuv = 0; |
a6ec74c1 |
1041 | NV cdouble = 0.0; |
92d41999 |
1042 | const int bits_in_uv = 8 * sizeof(cuv); |
49704364 |
1043 | char* strrelbeg = s; |
1044 | bool beyond = FALSE; |
21c16052 |
1045 | bool explicit_length; |
49704364 |
1046 | bool unpack_only_one = (symptr->flags & FLAG_UNPACK_ONLY_ONE) != 0; |
08ca2aa3 |
1047 | bool utf8 = (symptr->flags & FLAG_UNPACK_PARSE_UTF8) ? 1 : 0; |
49704364 |
1048 | |
49704364 |
1049 | while (next_symbol(symptr)) { |
1050 | datumtype = symptr->code; |
206947d2 |
1051 | /* do first one only unless in list context |
08ca2aa3 |
1052 | / is implemented by unpacking the count, then popping it from the |
206947d2 |
1053 | stack, so must check that we're not in the middle of a / */ |
49704364 |
1054 | if ( unpack_only_one |
206947d2 |
1055 | && (SP - PL_stack_base == start_sp_offset + 1) |
49704364 |
1056 | && (datumtype != '/') ) /* XXX can this be omitted */ |
206947d2 |
1057 | break; |
49704364 |
1058 | |
1059 | switch( howlen = symptr->howlen ){ |
1060 | case e_no_len: |
1061 | case e_number: |
1062 | len = symptr->length; |
1063 | break; |
1064 | case e_star: |
1065 | len = strend - strbeg; /* long enough */ |
1066 | break; |
1067 | } |
18529408 |
1068 | |
21c16052 |
1069 | explicit_length = TRUE; |
a6ec74c1 |
1070 | redo_switch: |
49704364 |
1071 | beyond = s >= strend; |
78d46eaa |
1072 | { |
1073 | int which = (symptr->code & TYPE_IS_SHRIEKING) |
1074 | ? PACK_SIZE_SHRIEKING : PACK_SIZE_NORMAL; |
a72c271b |
1075 | const int rawtype = TYPE_NO_MODIFIERS(datumtype); |
1076 | int offset = rawtype - packsize[which].first; |
78d46eaa |
1077 | |
1078 | if (offset >= 0 && offset < packsize[which].size) { |
1079 | /* Data about this template letter */ |
1080 | unsigned char data = packsize[which].array[offset]; |
1081 | |
1082 | if (data) { |
1083 | /* data nonzero means we can process this letter. */ |
1084 | long size = data & PACK_SIZE_MASK; |
1085 | long howmany = (strend - s) / size; |
1086 | if (len > howmany) |
1087 | len = howmany; |
1088 | |
1089 | if (!checksum || (data & PACK_SIZE_CANNOT_CSUM)) { |
08ca2aa3 |
1090 | if (len && unpack_only_one) len = 1; |
78d46eaa |
1091 | EXTEND(SP, len); |
1092 | EXTEND_MORTAL(len); |
1093 | } |
1094 | } |
1095 | } |
1096 | } |
1109a392 |
1097 | switch(TYPE_NO_ENDIANNESS(datumtype)) { |
a6ec74c1 |
1098 | default: |
1109a392 |
1099 | Perl_croak(aTHX_ "Invalid type '%c' in unpack", (int)TYPE_NO_MODIFIERS(datumtype) ); |
49704364 |
1100 | |
a6ec74c1 |
1101 | case '%': |
49704364 |
1102 | if (howlen == e_no_len) |
18529408 |
1103 | len = 16; /* len is not specified */ |
a6ec74c1 |
1104 | checksum = len; |
92d41999 |
1105 | cuv = 0; |
a6ec74c1 |
1106 | cdouble = 0; |
18529408 |
1107 | continue; |
a6ec74c1 |
1108 | break; |
18529408 |
1109 | case '(': |
1110 | { |
49704364 |
1111 | tempsym_t savsym = *symptr; |
66c611c5 |
1112 | U32 group_modifiers = TYPE_MODIFIERS(datumtype & ~symptr->flags); |
1113 | symptr->flags |= group_modifiers; |
49704364 |
1114 | symptr->patend = savsym.grpend; |
1115 | symptr->level++; |
18529408 |
1116 | PUTBACK; |
1117 | while (len--) { |
49704364 |
1118 | symptr->patptr = savsym.grpbeg; |
08ca2aa3 |
1119 | if (utf8) symptr->flags |= FLAG_UNPACK_PARSE_UTF8; |
1120 | else symptr->flags &= ~FLAG_UNPACK_PARSE_UTF8; |
1121 | unpack_rec(symptr, s, strbeg, strend, &s); |
1122 | if (s == strend && savsym.howlen == e_star) |
49704364 |
1123 | break; /* No way to continue */ |
18529408 |
1124 | } |
1125 | SPAGAIN; |
66c611c5 |
1126 | symptr->flags &= ~group_modifiers; |
49704364 |
1127 | savsym.flags = symptr->flags; |
1128 | *symptr = savsym; |
18529408 |
1129 | break; |
1130 | } |
a6ec74c1 |
1131 | case '@': |
08ca2aa3 |
1132 | if (utf8) { |
1133 | s = strrelbeg; |
1134 | while (len > 0) { |
1135 | if (s >= strend) |
1136 | Perl_croak(aTHX_ "'@' outside of string in unpack"); |
1137 | s += UTF8SKIP(s); |
1138 | len--; |
1139 | } |
1140 | if (s > strend) |
1141 | Perl_croak(aTHX_ "'@' outside of string with malformed UTF-8 in unpack"); |
1142 | } else { |
49704364 |
1143 | if (len > strend - strrelbeg) |
1144 | Perl_croak(aTHX_ "'@' outside of string in unpack"); |
1145 | s = strrelbeg + len; |
08ca2aa3 |
1146 | } |
a6ec74c1 |
1147 | break; |
62f95557 |
1148 | case 'X' | TYPE_IS_SHRIEKING: |
1149 | if (!len) /* Avoid division by 0 */ |
1150 | len = 1; |
08ca2aa3 |
1151 | if (utf8) { |
1152 | char *hop, *last; |
1153 | I32 l; |
1154 | for (l=len, hop = strbeg; hop < s; l++, hop += UTF8SKIP(hop)) |
1155 | if (l == len) { |
1156 | last = hop; |
1157 | l = 0; |
1158 | } |
1159 | s = last; |
1160 | break; |
1161 | } else len = (s - strbeg) % len; |
62f95557 |
1162 | /* FALL THROUGH */ |
a6ec74c1 |
1163 | case 'X': |
08ca2aa3 |
1164 | if (utf8) { |
1165 | while (len > 0) { |
1166 | if (s <= strbeg) |
1167 | Perl_croak(aTHX_ "'X' outside of string in unpack"); |
1168 | while (UTF8_IS_CONTINUATION(*--s)) { |
1169 | if (s <= strbeg) |
1170 | Perl_croak(aTHX_ "'X' outside of string in unpack"); |
1171 | } |
1172 | len--; |
1173 | } |
1174 | } else { |
a6ec74c1 |
1175 | if (len > s - strbeg) |
49704364 |
1176 | Perl_croak(aTHX_ "'X' outside of string in unpack" ); |
a6ec74c1 |
1177 | s -= len; |
08ca2aa3 |
1178 | } |
a6ec74c1 |
1179 | break; |
62f95557 |
1180 | case 'x' | TYPE_IS_SHRIEKING: |
1181 | if (!len) /* Avoid division by 0 */ |
1182 | len = 1; |
08ca2aa3 |
1183 | if (utf8) { |
1184 | char *hop = strbeg; |
1185 | I32 l = 0; |
1186 | for (hop = strbeg; hop < s; hop += UTF8SKIP(hop)) l++; |
1187 | if (s != hop) |
1188 | Perl_croak(aTHX_ "Malformed UTF-8 string in unpack"); |
1189 | ai32 = l % len; |
1190 | } else ai32 = (s - strbeg) % len; |
1191 | if (ai32 == 0) break; |
1192 | len -= ai32; |
62f95557 |
1193 | /* FALL THROUGH */ |
a6ec74c1 |
1194 | case 'x': |
08ca2aa3 |
1195 | if (utf8) { |
1196 | while (len>0) { |
1197 | if (s >= strend) |
1198 | Perl_croak(aTHX_ "'x' outside of string in unpack"); |
1199 | s += UTF8SKIP(s); |
1200 | len--; |
1201 | } |
1202 | } else { |
a6ec74c1 |
1203 | if (len > strend - s) |
49704364 |
1204 | Perl_croak(aTHX_ "'x' outside of string in unpack"); |
a6ec74c1 |
1205 | s += len; |
08ca2aa3 |
1206 | }; |
a6ec74c1 |
1207 | break; |
1208 | case '/': |
49704364 |
1209 | Perl_croak(aTHX_ "'/' must follow a numeric type in unpack"); |
1210 | break; |
a6ec74c1 |
1211 | case 'A': |
1212 | case 'Z': |
1213 | case 'a': |
08ca2aa3 |
1214 | if (checksum) { |
1215 | /* Preliminary length estimate is assumed done in 'W' */ |
1216 | if (len > strend - s) len = strend - s; |
1217 | goto W_checksum; |
1218 | } |
1219 | if (utf8) { |
1220 | I32 l; |
1221 | char *hop; |
1222 | for (l=len, hop=s; l>0; l--, hop += UTF8SKIP(hop)) { |
1223 | if (hop >= strend) { |
1224 | if (hop > strend) |
1225 | Perl_croak(aTHX_ "Malformed UTF-8 string in unpack"); |
1226 | break; |
a6ec74c1 |
1227 | } |
a6ec74c1 |
1228 | } |
08ca2aa3 |
1229 | if (hop > strend) |
1230 | Perl_croak(aTHX_ "Malformed UTF-8 string in unpack"); |
1231 | len = hop - s; |
1232 | } else if (len > strend - s) |
1233 | len = strend - s; |
1234 | |
1235 | if (datumtype == 'Z') { |
1236 | /* 'Z' strips stuff after first null */ |
1237 | char *ptr; |
1238 | for (ptr = s; ptr < strend; ptr++) if (*ptr == 0) break; |
1239 | sv = newSVpvn(s, ptr-s); |
1240 | if (howlen == e_star) /* exact for 'Z*' */ |
1241 | len = ptr-s + (ptr != strend ? 1 : 0); |
1242 | } else if (datumtype == 'A') { |
1243 | /* 'A' strips both nulls and spaces */ |
1244 | char *ptr; |
1245 | for (ptr = s+len-1; ptr >= s; ptr--) |
1246 | if (*ptr != 0 && !isSPACE(*ptr)) break; |
1247 | ptr++; |
1248 | sv = newSVpvn(s, ptr-s); |
1249 | } else sv = newSVpvn(s, len); |
1250 | |
1251 | if (utf8) { |
1252 | SvUTF8_on(sv); |
1253 | /* Undo any upgrade done due to need_utf8() */ |
1254 | if (!(symptr->flags & FLAG_UNPACK_WAS_UTF8)) |
1255 | sv_utf8_downgrade(sv, 0); |
a6ec74c1 |
1256 | } |
1257 | XPUSHs(sv_2mortal(sv)); |
08ca2aa3 |
1258 | s += len; |
a6ec74c1 |
1259 | break; |
1260 | case 'B': |
08ca2aa3 |
1261 | case 'b': { |
1262 | char *str; |
49704364 |
1263 | if (howlen == e_star || len > (strend - s) * 8) |
a6ec74c1 |
1264 | len = (strend - s) * 8; |
1265 | if (checksum) { |
1266 | if (!PL_bitcount) { |
08ca2aa3 |
1267 | int bits; |
a6ec74c1 |
1268 | Newz(601, PL_bitcount, 256, char); |
1269 | for (bits = 1; bits < 256; bits++) { |
1270 | if (bits & 1) PL_bitcount[bits]++; |
1271 | if (bits & 2) PL_bitcount[bits]++; |
1272 | if (bits & 4) PL_bitcount[bits]++; |
1273 | if (bits & 8) PL_bitcount[bits]++; |
1274 | if (bits & 16) PL_bitcount[bits]++; |
1275 | if (bits & 32) PL_bitcount[bits]++; |
1276 | if (bits & 64) PL_bitcount[bits]++; |
1277 | if (bits & 128) PL_bitcount[bits]++; |
1278 | } |
1279 | } |
08ca2aa3 |
1280 | if (utf8) { |
1281 | while (len >= 8 && s < strend) { |
1282 | cuv += PL_bitcount[next_uni_byte(aTHX_ &s, strend, datumtype)]; |
1283 | len -= 8; |
1284 | } |
1285 | } else { |
a6ec74c1 |
1286 | while (len >= 8) { |
08ca2aa3 |
1287 | cuv += PL_bitcount[*(U8 *)s++]; |
a6ec74c1 |
1288 | len -= 8; |
1289 | } |
08ca2aa3 |
1290 | } |
1291 | if (len && s < strend) { |
1292 | U8 bits; |
1293 | bits = NEXT_BYTE(utf8, s, strend, datumtype); |
a6ec74c1 |
1294 | if (datumtype == 'b') { |
1295 | while (len-- > 0) { |
92d41999 |
1296 | if (bits & 1) cuv++; |
a6ec74c1 |
1297 | bits >>= 1; |
1298 | } |
08ca2aa3 |
1299 | } else { |
a6ec74c1 |
1300 | while (len-- > 0) { |
08ca2aa3 |
1301 | if (bits & 0x80) cuv++; |
a6ec74c1 |
1302 | bits <<= 1; |
1303 | } |
1304 | } |
1305 | } |
1306 | break; |
1307 | } |
08ca2aa3 |
1308 | |
1309 | sv = sv_2mortal(NEWSV(35, len ? len : 1)); |
a6ec74c1 |
1310 | SvPOK_on(sv); |
1311 | str = SvPVX(sv); |
1312 | if (datumtype == 'b') { |
08ca2aa3 |
1313 | U8 bits; |
1314 | ai32 = len; |
1315 | for (len = 0; len < ai32; len++) { |
1316 | if (len & 7) bits >>= 1; |
1317 | else if (utf8) { |
1318 | if (s >= strend) break; |
1319 | bits = next_uni_byte(aTHX_ &s, strend, datumtype); |
1320 | } else bits = *(U8 *) s++; |
1321 | *str++ = bits & 1 ? '1' : '0'; |
a6ec74c1 |
1322 | } |
08ca2aa3 |
1323 | } else { |
1324 | U8 bits; |
1325 | ai32 = len; |
1326 | for (len = 0; len < ai32; len++) { |
1327 | if (len & 7) bits <<= 1; |
1328 | else if (utf8) { |
1329 | if (s >= strend) break; |
1330 | bits = next_uni_byte(aTHX_ &s, strend, datumtype); |
1331 | } else bits = *(U8 *) s++; |
1332 | *str++ = bits & 0x80 ? '1' : '0'; |
a6ec74c1 |
1333 | } |
1334 | } |
1335 | *str = '\0'; |
08ca2aa3 |
1336 | SvCUR_set(sv, str - SvPVX(sv)); |
1337 | XPUSHs(sv); |
a6ec74c1 |
1338 | break; |
08ca2aa3 |
1339 | } |
a6ec74c1 |
1340 | case 'H': |
08ca2aa3 |
1341 | case 'h': { |
1342 | char *str; |
1343 | /* Preliminary length estimate, acceptable for utf8 too */ |
49704364 |
1344 | if (howlen == e_star || len > (strend - s) * 2) |
a6ec74c1 |
1345 | len = (strend - s) * 2; |
08ca2aa3 |
1346 | sv = sv_2mortal(NEWSV(35, len ? len : 1)); |
a6ec74c1 |
1347 | SvPOK_on(sv); |
1348 | str = SvPVX(sv); |
1349 | if (datumtype == 'h') { |
08ca2aa3 |
1350 | U8 bits; |
1351 | ai32 = len; |
1352 | for (len = 0; len < ai32; len++) { |
1353 | if (len & 1) bits >>= 4; |
1354 | else if (utf8) { |
1355 | if (s >= strend) break; |
1356 | bits = next_uni_byte(aTHX_ &s, strend, datumtype); |
1357 | } else bits = * (U8 *) s++; |
a6ec74c1 |
1358 | *str++ = PL_hexdigit[bits & 15]; |
1359 | } |
08ca2aa3 |
1360 | } else { |
1361 | U8 bits; |
1362 | ai32 = len; |
1363 | for (len = 0; len < ai32; len++) { |
1364 | if (len & 1) bits <<= 4; |
1365 | else if (utf8) { |
1366 | if (s >= strend) break; |
1367 | bits = next_uni_byte(aTHX_ &s, strend, datumtype); |
1368 | } else bits = *(U8 *) s++; |
a6ec74c1 |
1369 | *str++ = PL_hexdigit[(bits >> 4) & 15]; |
1370 | } |
1371 | } |
1372 | *str = '\0'; |
08ca2aa3 |
1373 | SvCUR_set(sv, str - SvPVX(sv)); |
1374 | XPUSHs(sv); |
a6ec74c1 |
1375 | break; |
08ca2aa3 |
1376 | } |
a6ec74c1 |
1377 | case 'c': |
73cb7263 |
1378 | while (len-- > 0) { |
08ca2aa3 |
1379 | int aint = NEXT_BYTE(utf8, s, strend, datumtype); |
73cb7263 |
1380 | if (aint >= 128) /* fake up signed chars */ |
1381 | aint -= 256; |
08ca2aa3 |
1382 | if (!checksum) |
ac7f3b1b |
1383 | PUSHs(sv_2mortal(newSViv((IV)aint))); |
73cb7263 |
1384 | else if (checksum > bits_in_uv) |
1385 | cdouble += (NV)aint; |
1386 | else |
1387 | cuv += aint; |
a6ec74c1 |
1388 | } |
1389 | break; |
1390 | case 'C': |
08ca2aa3 |
1391 | case 'W': |
1392 | W_checksum: |
35bcd338 |
1393 | if (len == 0) { |
08ca2aa3 |
1394 | if (explicit_length && datumtype == 'C') |
1395 | /* Switch to "character" mode */ |
1396 | utf8 = (symptr->flags & FLAG_UNPACK_DO_UTF8) ? 1 : 0; |
35bcd338 |
1397 | break; |
1398 | } |
08ca2aa3 |
1399 | if (datumtype == 'C' ? |
1400 | (symptr->flags & FLAG_UNPACK_DO_UTF8) && |
1401 | !(symptr->flags & FLAG_UNPACK_WAS_UTF8) : utf8) { |
1402 | while (len-- > 0 && s < strend) { |
1403 | UV val; |
1404 | STRLEN retlen; |
1405 | val = |
1406 | UNI_TO_NATIVE(utf8n_to_uvuni(s, strend-s, &retlen, |
1407 | ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANY)); |
1408 | if (retlen == (STRLEN) -1 || retlen == 0) |
1409 | Perl_croak(aTHX_ "Malformed UTF-8 string in unpack"); |
1410 | s += retlen; |
1411 | if (!checksum) |
1412 | PUSHs(sv_2mortal(newSVuv((UV) val))); |
1413 | else if (checksum > bits_in_uv) |
1414 | cdouble += (NV) val; |
d6d3e8bd |
1415 | else |
08ca2aa3 |
1416 | cuv += val; |
a6ec74c1 |
1417 | } |
08ca2aa3 |
1418 | } else if (!checksum) |
a6ec74c1 |
1419 | while (len-- > 0) { |
08ca2aa3 |
1420 | U8 ch = *(U8 *) s++; |
1421 | PUSHs(sv_2mortal(newSVuv((UV) ch))); |
a6ec74c1 |
1422 | } |
08ca2aa3 |
1423 | else if (checksum > bits_in_uv) |
1424 | while (len-- > 0) cdouble += (NV) *(U8 *) s++; |
1425 | else |
1426 | while (len-- > 0) cuv += *(U8 *) s++; |
a6ec74c1 |
1427 | break; |
1428 | case 'U': |
35bcd338 |
1429 | if (len == 0) { |
08ca2aa3 |
1430 | if (explicit_length) { |
1431 | /* Switch to "bytes in UTF-8" mode */ |
1432 | if (symptr->flags & FLAG_UNPACK_DO_UTF8) utf8 = 0; |
1433 | else |
1434 | /* Should be impossible due to the need_utf8() test */ |
1435 | Perl_croak(aTHX_ "U0 mode on a byte string"); |
1436 | } |
35bcd338 |
1437 | break; |
1438 | } |
08ca2aa3 |
1439 | if (len > strend - s) len = strend - s; |
73cb7263 |
1440 | if (!checksum) { |
08ca2aa3 |
1441 | if (len && unpack_only_one) len = 1; |
1442 | EXTEND(SP, len); |
1443 | EXTEND_MORTAL(len); |
a6ec74c1 |
1444 | } |
08ca2aa3 |
1445 | while (len-- > 0 && s < strend) { |
1446 | STRLEN retlen; |
1447 | UV auv; |
1448 | if (utf8) { |
1449 | U8 result[UTF8_MAXLEN]; |
1450 | char *ptr; |
1451 | STRLEN len; |
1452 | ptr = s; |
1453 | /* Bug: warns about bad utf8 even if we are short on bytes |
1454 | and will break out of the loop */ |
1455 | if (!next_uni_bytes(aTHX_ &ptr, strend, result, 1)) |
1456 | break; |
1457 | len = UTF8SKIP(result); |
1458 | if (!next_uni_bytes(aTHX_ &ptr, strend, &result[1], len-1)) |
1459 | break; |
1460 | auv = utf8n_to_uvuni(result, len, &retlen, ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANYUV); |
1461 | s = ptr; |
1462 | } else { |
1463 | auv = utf8n_to_uvuni((U8*)s, strend - s, &retlen, ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANYUV); |
1464 | if (retlen == (STRLEN) -1 || retlen == 0) |
1465 | Perl_croak(aTHX_ "Malformed UTF-8 string in unpack"); |
1466 | s += retlen; |
1467 | } |
1468 | if (!checksum) |
1469 | PUSHs(sv_2mortal(newSVuv((UV) auv))); |
73cb7263 |
1470 | else if (checksum > bits_in_uv) |
08ca2aa3 |
1471 | cdouble += (NV) auv; |
73cb7263 |
1472 | else |
08ca2aa3 |
1473 | cuv += auv; |
a6ec74c1 |
1474 | } |
1475 | break; |
49704364 |
1476 | case 's' | TYPE_IS_SHRIEKING: |
1477 | #if SHORTSIZE != SIZE16 |
73cb7263 |
1478 | while (len-- > 0) { |
08ca2aa3 |
1479 | short ashort; |
1480 | COPYVAR(s, strend, utf8, ashort, s); |
1481 | if (!checksum) |
ac7f3b1b |
1482 | PUSHs(sv_2mortal(newSViv((IV)ashort))); |
73cb7263 |
1483 | else if (checksum > bits_in_uv) |
1484 | cdouble += (NV)ashort; |
1485 | else |
1486 | cuv += ashort; |
49704364 |
1487 | } |
1488 | break; |
1489 | #else |
1490 | /* Fallthrough! */ |
a6ec74c1 |
1491 | #endif |
49704364 |
1492 | case 's': |
73cb7263 |
1493 | while (len-- > 0) { |
08ca2aa3 |
1494 | I16 ai16; |
1495 | |
1496 | #if U16SIZE > SIZE16 |
1497 | ai16 = 0; |
1498 | #endif |
1499 | if (utf8) { |
1500 | if (!next_uni_bytes(aTHX_ &s, strend, |
1501 | OFF16(&ai16), SIZE16)) break; |
1502 | } else { |
73cb7263 |
1503 | COPY16(s, &ai16); |
08ca2aa3 |
1504 | s += SIZE16; |
1505 | } |
73cb7263 |
1506 | DO_BO_UNPACK(ai16, 16); |
1109a392 |
1507 | #if U16SIZE > SIZE16 |
73cb7263 |
1508 | if (ai16 > 32767) |
1509 | ai16 -= 65536; |
a6ec74c1 |
1510 | #endif |
08ca2aa3 |
1511 | if (!checksum) |
ac7f3b1b |
1512 | PUSHs(sv_2mortal(newSViv((IV)ai16))); |
73cb7263 |
1513 | else if (checksum > bits_in_uv) |
1514 | cdouble += (NV)ai16; |
1515 | else |
1516 | cuv += ai16; |
a6ec74c1 |
1517 | } |
1518 | break; |
49704364 |
1519 | case 'S' | TYPE_IS_SHRIEKING: |
1520 | #if SHORTSIZE != SIZE16 |
73cb7263 |
1521 | while (len-- > 0) { |
08ca2aa3 |
1522 | unsigned short aushort; |
1523 | COPYVAR(s, strend, utf8, aushort, s); |
1524 | if (!checksum) |
1525 | PUSHs(sv_2mortal(newSVuv((UV) aushort))); |
73cb7263 |
1526 | else if (checksum > bits_in_uv) |
1527 | cdouble += (NV)aushort; |
1528 | else |
1529 | cuv += aushort; |
49704364 |
1530 | } |
1531 | break; |
1532 | #else |
1533 | /* Fallhrough! */ |
1534 | #endif |
a6ec74c1 |
1535 | case 'v': |
1536 | case 'n': |
1537 | case 'S': |
73cb7263 |
1538 | while (len-- > 0) { |
08ca2aa3 |
1539 | U16 au16; |
1540 | #if U16SIZE > SIZE16 |
1541 | au16 = 0; |
1542 | #endif |
1543 | if (utf8) { |
1544 | if (!next_uni_bytes(aTHX_ &s, strend, |
1545 | OFF16(&au16), SIZE16)) break; |
1546 | } else { |
73cb7263 |
1547 | COPY16(s, &au16); |
73cb7263 |
1548 | s += SIZE16; |
08ca2aa3 |
1549 | } |
1550 | DO_BO_UNPACK(au16, 16); |
a6ec74c1 |
1551 | #ifdef HAS_NTOHS |
73cb7263 |
1552 | if (datumtype == 'n') |
1553 | au16 = PerlSock_ntohs(au16); |
a6ec74c1 |
1554 | #endif |
1555 | #ifdef HAS_VTOHS |
73cb7263 |
1556 | if (datumtype == 'v') |
1557 | au16 = vtohs(au16); |
a6ec74c1 |
1558 | #endif |
08ca2aa3 |
1559 | if (!checksum) |
1560 | PUSHs(sv_2mortal(newSVuv((UV)au16))); |
73cb7263 |
1561 | else if (checksum > bits_in_uv) |
1562 | cdouble += (NV)au16; |
1563 | else |
1564 | cuv += au16; |
a6ec74c1 |
1565 | } |
1566 | break; |
7212898e |
1567 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
068bd2e7 |
1568 | case 'v' | TYPE_IS_SHRIEKING: |
1569 | case 'n' | TYPE_IS_SHRIEKING: |
73cb7263 |
1570 | while (len-- > 0) { |
08ca2aa3 |
1571 | I16 ai16; |
1572 | # if U16SIZE > SIZE16 |
1573 | ai16 = 0; |
1574 | # endif |
1575 | if (utf8) { |
1576 | if (!next_uni_bytes(aTHX_ &s, strend, |
1577 | (char *) &ai16, sizeof(ai16))) break; |
1578 | } else { |
73cb7263 |
1579 | COPY16(s, &ai16); |
1580 | s += SIZE16; |
08ca2aa3 |
1581 | } |
1582 | # ifdef HAS_NTOHS |
73cb7263 |
1583 | if (datumtype == ('n' | TYPE_IS_SHRIEKING)) |
08ca2aa3 |
1584 | ai16 = (I16) PerlSock_ntohs((U16) ai16); |
1585 | # endif /* HAS_NTOHS */ |
1586 | # ifdef HAS_VTOHS |
73cb7263 |
1587 | if (datumtype == ('v' | TYPE_IS_SHRIEKING)) |
08ca2aa3 |
1588 | ai16 = (I16) vtohs((U16) ai16); |
1589 | # endif /* HAS_VTOHS */ |
1590 | if (!checksum) |
ac7f3b1b |
1591 | PUSHs(sv_2mortal(newSViv((IV)ai16))); |
73cb7263 |
1592 | else if (checksum > bits_in_uv) |
08ca2aa3 |
1593 | cdouble += (NV) ai16; |
73cb7263 |
1594 | else |
1595 | cuv += ai16; |
068bd2e7 |
1596 | } |
1597 | break; |
08ca2aa3 |
1598 | #endif /* PERL_PACK_CAN_SHRIEKSIGN */ |
a6ec74c1 |
1599 | case 'i': |
49704364 |
1600 | case 'i' | TYPE_IS_SHRIEKING: |
73cb7263 |
1601 | while (len-- > 0) { |
08ca2aa3 |
1602 | int aint; |
1603 | COPYVAR(s, strend, utf8, aint, i); |
1604 | if (!checksum) |
ac7f3b1b |
1605 | PUSHs(sv_2mortal(newSViv((IV)aint))); |
73cb7263 |
1606 | else if (checksum > bits_in_uv) |
1607 | cdouble += (NV)aint; |
1608 | else |
1609 | cuv += aint; |
a6ec74c1 |
1610 | } |
1611 | break; |
1612 | case 'I': |
49704364 |
1613 | case 'I' | TYPE_IS_SHRIEKING: |
73cb7263 |
1614 | while (len-- > 0) { |
08ca2aa3 |
1615 | unsigned int auint; |
1616 | COPYVAR(s, strend, utf8, auint, i); |
1617 | if (!checksum) |
ac7f3b1b |
1618 | PUSHs(sv_2mortal(newSVuv((UV)auint))); |
73cb7263 |
1619 | else if (checksum > bits_in_uv) |
1620 | cdouble += (NV)auint; |
1621 | else |
1622 | cuv += auint; |
a6ec74c1 |
1623 | } |
1624 | break; |
92d41999 |
1625 | case 'j': |
73cb7263 |
1626 | while (len-- > 0) { |
08ca2aa3 |
1627 | IV aiv; |
1109a392 |
1628 | #if IVSIZE == INTSIZE |
08ca2aa3 |
1629 | COPYVAR(s, strend, utf8, aiv, i); |
1109a392 |
1630 | #elif IVSIZE == LONGSIZE |
08ca2aa3 |
1631 | COPYVAR(s, strend, utf8, aiv, l); |
1109a392 |
1632 | #elif defined(HAS_QUAD) && IVSIZE == U64SIZE |
08ca2aa3 |
1633 | COPYVAR(s, strend, utf8, aiv, 64); |
1634 | #else |
1635 | Perl_croak(aTHX_ "'j' not supported on this platform"); |
1109a392 |
1636 | #endif |
08ca2aa3 |
1637 | if (!checksum) |
ac7f3b1b |
1638 | PUSHs(sv_2mortal(newSViv(aiv))); |
73cb7263 |
1639 | else if (checksum > bits_in_uv) |
1640 | cdouble += (NV)aiv; |
1641 | else |
1642 | cuv += aiv; |
92d41999 |
1643 | } |
1644 | break; |
1645 | case 'J': |
73cb7263 |
1646 | while (len-- > 0) { |
08ca2aa3 |
1647 | UV auv; |
1648 | #if IVSIZE == INTSIZE |
1649 | COPYVAR(s, strend, utf8, auv, i); |
1650 | #elif IVSIZE == LONGSIZE |
1651 | COPYVAR(s, strend, utf8, auv, l); |
1652 | #elif defined(HAS_QUAD) && IVSIZE == U64SIZE |
1653 | COPYVAR(s, strend, utf8, auv, 64); |
1654 | #else |
1655 | Perl_croak(aTHX_ "'J' not supported on this platform"); |
1109a392 |
1656 | #endif |
08ca2aa3 |
1657 | if (!checksum) |
ac7f3b1b |
1658 | PUSHs(sv_2mortal(newSVuv(auv))); |
73cb7263 |
1659 | else if (checksum > bits_in_uv) |
1660 | cdouble += (NV)auv; |
1661 | else |
1662 | cuv += auv; |
92d41999 |
1663 | } |
1664 | break; |
49704364 |
1665 | case 'l' | TYPE_IS_SHRIEKING: |
1666 | #if LONGSIZE != SIZE32 |
73cb7263 |
1667 | while (len-- > 0) { |
08ca2aa3 |
1668 | long along; |
1669 | COPYVAR(s, strend, utf8, along, l); |
1670 | if (!checksum) |
ac7f3b1b |
1671 | PUSHs(sv_2mortal(newSViv((IV)along))); |
73cb7263 |
1672 | else if (checksum > bits_in_uv) |
1673 | cdouble += (NV)along; |
1674 | else |
1675 | cuv += along; |
49704364 |
1676 | } |
1677 | break; |
1678 | #else |
1679 | /* Fallthrough! */ |
a6ec74c1 |
1680 | #endif |
49704364 |
1681 | case 'l': |
73cb7263 |
1682 | while (len-- > 0) { |
08ca2aa3 |
1683 | I32 ai32; |
1684 | #if U32SIZE > SIZE32 |
1685 | ai32 = 0; |
1686 | #endif |
1687 | if (utf8) { |
1688 | if (!next_uni_bytes(aTHX_ &s, strend, |
1689 | OFF32(&ai32), SIZE32)) break; |
1690 | } else { |
73cb7263 |
1691 | COPY32(s, &ai32); |
08ca2aa3 |
1692 | s += SIZE32; |
1693 | } |
73cb7263 |
1694 | DO_BO_UNPACK(ai32, 32); |
25a9bd2a |
1695 | #if U32SIZE > SIZE32 |
08ca2aa3 |
1696 | if (ai32 > 2147483647) ai32 -= 4294967296; |
a6ec74c1 |
1697 | #endif |
08ca2aa3 |
1698 | if (!checksum) |
ac7f3b1b |
1699 | PUSHs(sv_2mortal(newSViv((IV)ai32))); |
73cb7263 |
1700 | else if (checksum > bits_in_uv) |
1701 | cdouble += (NV)ai32; |
1702 | else |
1703 | cuv += ai32; |
a6ec74c1 |
1704 | } |
1705 | break; |
49704364 |
1706 | case 'L' | TYPE_IS_SHRIEKING: |
1707 | #if LONGSIZE != SIZE32 |
73cb7263 |
1708 | while (len-- > 0) { |
08ca2aa3 |
1709 | unsigned long aulong; |
1710 | COPYVAR(s, strend, utf8, aulong, l); |
1711 | if (!checksum) |
ac7f3b1b |
1712 | PUSHs(sv_2mortal(newSVuv((UV)aulong))); |
73cb7263 |
1713 | else if (checksum > bits_in_uv) |
1714 | cdouble += (NV)aulong; |
1715 | else |
1716 | cuv += aulong; |
49704364 |
1717 | } |
1718 | break; |
1719 | #else |
1720 | /* Fall through! */ |
1721 | #endif |
a6ec74c1 |
1722 | case 'V': |
1723 | case 'N': |
1724 | case 'L': |
73cb7263 |
1725 | while (len-- > 0) { |
08ca2aa3 |
1726 | U32 au32; |
1727 | #if U32SIZE > SIZE32 |
1728 | au32 = 0; |
1729 | #endif |
1730 | if (utf8) { |
1731 | if (!next_uni_bytes(aTHX_ &s, strend, |
1732 | OFF32(&au32), SIZE32)) break; |
1733 | } else { |
73cb7263 |
1734 | COPY32(s, &au32); |
73cb7263 |
1735 | s += SIZE32; |
08ca2aa3 |
1736 | } |
1737 | DO_BO_UNPACK(au32, 32); |
a6ec74c1 |
1738 | #ifdef HAS_NTOHL |
73cb7263 |
1739 | if (datumtype == 'N') |
1740 | au32 = PerlSock_ntohl(au32); |
a6ec74c1 |
1741 | #endif |
1742 | #ifdef HAS_VTOHL |
73cb7263 |
1743 | if (datumtype == 'V') |
1744 | au32 = vtohl(au32); |
a6ec74c1 |
1745 | #endif |
08ca2aa3 |
1746 | if (!checksum) |
ac7f3b1b |
1747 | PUSHs(sv_2mortal(newSVuv((UV)au32))); |
73cb7263 |
1748 | else if (checksum > bits_in_uv) |
1749 | cdouble += (NV)au32; |
1750 | else |
1751 | cuv += au32; |
a6ec74c1 |
1752 | } |
1753 | break; |
7212898e |
1754 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
068bd2e7 |
1755 | case 'V' | TYPE_IS_SHRIEKING: |
1756 | case 'N' | TYPE_IS_SHRIEKING: |
73cb7263 |
1757 | while (len-- > 0) { |
08ca2aa3 |
1758 | I32 ai32; |
1759 | # if U32SIZE > SIZE32 |
1760 | ai32 = 0; |
1761 | # endif |
1762 | if (utf8) { |
1763 | if (!next_uni_bytes(aTHX_ &s, strend, |
1764 | OFF32(&ai32), SIZE32)) break; |
1765 | } else { |
73cb7263 |
1766 | COPY32(s, &ai32); |
1767 | s += SIZE32; |
08ca2aa3 |
1768 | } |
1769 | # ifdef HAS_NTOHL |
73cb7263 |
1770 | if (datumtype == ('N' | TYPE_IS_SHRIEKING)) |
1771 | ai32 = (I32)PerlSock_ntohl((U32)ai32); |
08ca2aa3 |
1772 | # endif |
1773 | # ifdef HAS_VTOHL |
73cb7263 |
1774 | if (datumtype == ('V' | TYPE_IS_SHRIEKING)) |
1775 | ai32 = (I32)vtohl((U32)ai32); |
08ca2aa3 |
1776 | # endif |
1777 | if (!checksum) |
ac7f3b1b |
1778 | PUSHs(sv_2mortal(newSViv((IV)ai32))); |
73cb7263 |
1779 | else if (checksum > bits_in_uv) |
1780 | cdouble += (NV)ai32; |
1781 | else |
1782 | cuv += ai32; |
068bd2e7 |
1783 | } |
1784 | break; |
08ca2aa3 |
1785 | #endif /* PERL_PACK_CAN_SHRIEKSIGN */ |
a6ec74c1 |
1786 | case 'p': |
a6ec74c1 |
1787 | while (len-- > 0) { |
08ca2aa3 |
1788 | char *aptr; |
1789 | if (utf8) { |
1790 | if (!next_uni_bytes(aTHX_ &s, strend, |
1791 | (char *) &aptr, sizeof(aptr))) break; |
1792 | } else { |
5512a2f9 |
1793 | Copy(s, &aptr, 1, char*); |
08ca2aa3 |
1794 | s += sizeof(aptr); |
1795 | } |
5512a2f9 |
1796 | DO_BO_UNPACK_P(aptr); |
c4c5f44a |
1797 | /* newSVpv generates undef if aptr is NULL */ |
1798 | PUSHs(sv_2mortal(newSVpv(aptr, 0))); |
a6ec74c1 |
1799 | } |
1800 | break; |
1801 | case 'w': |
a6ec74c1 |
1802 | { |
1803 | UV auv = 0; |
1804 | U32 bytes = 0; |
1805 | |
08ca2aa3 |
1806 | while (len > 0 && s < strend) { |
1807 | U8 ch; |
1808 | ch = NEXT_BYTE(utf8, s, strend, 'w'); |
1809 | auv = (auv << 7) | (ch & 0x7f); |
a6ec74c1 |
1810 | /* UTF8_IS_XXXXX not right here - using constant 0x80 */ |
08ca2aa3 |
1811 | if (ch < 0x80) { |
a6ec74c1 |
1812 | bytes = 0; |
ac7f3b1b |
1813 | PUSHs(sv_2mortal(newSVuv(auv))); |
a6ec74c1 |
1814 | len--; |
1815 | auv = 0; |
08ca2aa3 |
1816 | continue; |
a6ec74c1 |
1817 | } |
08ca2aa3 |
1818 | if (++bytes >= sizeof(UV)) { /* promote to string */ |
a6ec74c1 |
1819 | char *t; |
1820 | STRLEN n_a; |
1821 | |
1822 | sv = Perl_newSVpvf(aTHX_ "%.*"UVf, (int)TYPE_DIGITS(UV), auv); |
1823 | while (s < strend) { |
08ca2aa3 |
1824 | ch = NEXT_BYTE(utf8, s, strend, 'w'); |
1825 | sv = mul128(sv, (U8)(ch & 0x7f)); |
1826 | if (!(ch & 0x80)) { |
a6ec74c1 |
1827 | bytes = 0; |
1828 | break; |
1829 | } |
1830 | } |
1831 | t = SvPV(sv, n_a); |
1832 | while (*t == '0') |
1833 | t++; |
1834 | sv_chop(sv, t); |
1835 | PUSHs(sv_2mortal(sv)); |
1836 | len--; |
1837 | auv = 0; |
1838 | } |
1839 | } |
1840 | if ((s >= strend) && bytes) |
49704364 |
1841 | Perl_croak(aTHX_ "Unterminated compressed integer in unpack"); |
a6ec74c1 |
1842 | } |
1843 | break; |
1844 | case 'P': |
49704364 |
1845 | if (symptr->howlen == e_star) |
1846 | Perl_croak(aTHX_ "'P' must have an explicit size in unpack"); |
a6ec74c1 |
1847 | EXTEND(SP, 1); |
08ca2aa3 |
1848 | if (sizeof(char*) <= strend - s) { |
1849 | char *aptr; |
1850 | if (utf8) { |
1851 | if (!next_uni_bytes(aTHX_ &s, strend, (char *) &aptr, |
1852 | sizeof(aptr))) break; |
1853 | } else { |
a6ec74c1 |
1854 | Copy(s, &aptr, 1, char*); |
08ca2aa3 |
1855 | s += sizeof(aptr); |
a6ec74c1 |
1856 | } |
08ca2aa3 |
1857 | DO_BO_UNPACK_P(aptr); |
c4c5f44a |
1858 | /* newSVpvn generates undef if aptr is NULL */ |
1859 | PUSHs(sv_2mortal(newSVpvn(aptr, len))); |
08ca2aa3 |
1860 | } |
a6ec74c1 |
1861 | break; |
1862 | #ifdef HAS_QUAD |
1863 | case 'q': |
73cb7263 |
1864 | while (len-- > 0) { |
08ca2aa3 |
1865 | Quad_t aquad; |
1866 | COPYVAR(s, strend, utf8, aquad, 64); |
1867 | if (!checksum) |
1868 | PUSHs(sv_2mortal(aquad >= IV_MIN && aquad <= IV_MAX ? |
ac7f3b1b |
1869 | newSViv((IV)aquad) : newSVnv((NV)aquad))); |
73cb7263 |
1870 | else if (checksum > bits_in_uv) |
1871 | cdouble += (NV)aquad; |
1872 | else |
1873 | cuv += aquad; |
1874 | } |
a6ec74c1 |
1875 | break; |
1876 | case 'Q': |
73cb7263 |
1877 | while (len-- > 0) { |
08ca2aa3 |
1878 | Uquad_t auquad; |
1879 | COPYVAR(s, strend, utf8, auquad, 64); |
1880 | if (!checksum) |
1881 | PUSHs(sv_2mortal(auquad <= UV_MAX ? |
1882 | newSVuv((UV)auquad):newSVnv((NV)auquad))); |
73cb7263 |
1883 | else if (checksum > bits_in_uv) |
1884 | cdouble += (NV)auquad; |
1885 | else |
1886 | cuv += auquad; |
a6ec74c1 |
1887 | } |
1888 | break; |
08ca2aa3 |
1889 | #endif /* HAS_QUAD */ |
a6ec74c1 |
1890 | /* float and double added gnb@melba.bby.oz.au 22/11/89 */ |
1891 | case 'f': |
73cb7263 |
1892 | while (len-- > 0) { |
08ca2aa3 |
1893 | float afloat; |
1894 | if (utf8) { |
1895 | if (!next_uni_bytes(aTHX_ &s, strend, (char *) &afloat, |
1896 | sizeof(afloat))) break; |
1897 | } else { |
73cb7263 |
1898 | Copy(s, &afloat, 1, float); |
73cb7263 |
1899 | s += sizeof(float); |
a6ec74c1 |
1900 | } |
08ca2aa3 |
1901 | DO_BO_UNPACK_N(afloat, float); |
1902 | if (!checksum) |
1903 | PUSHs(sv_2mortal(newSVnv((NV)afloat))); |
1904 | else |
73cb7263 |
1905 | cdouble += afloat; |
1906 | } |
a6ec74c1 |
1907 | break; |
1908 | case 'd': |
73cb7263 |
1909 | while (len-- > 0) { |
08ca2aa3 |
1910 | double adouble; |
1911 | if (utf8) { |
1912 | if (!next_uni_bytes(aTHX_ &s, strend, (char *) &adouble, |
1913 | sizeof(adouble))) break; |
1914 | } else { |
73cb7263 |
1915 | Copy(s, &adouble, 1, double); |
73cb7263 |
1916 | s += sizeof(double); |
a6ec74c1 |
1917 | } |
08ca2aa3 |
1918 | DO_BO_UNPACK_N(adouble, double); |
1919 | if (!checksum) |
1920 | PUSHs(sv_2mortal(newSVnv((NV)adouble))); |
1921 | else |
73cb7263 |
1922 | cdouble += adouble; |
1923 | } |
a6ec74c1 |
1924 | break; |
92d41999 |
1925 | case 'F': |
73cb7263 |
1926 | while (len-- > 0) { |
08ca2aa3 |
1927 | NV anv; |
1928 | if (utf8) { |
1929 | if (!next_uni_bytes(aTHX_ &s, strend, |
1930 | (char *) &anv, sizeof(anv))) break; |
1931 | } else { |
73cb7263 |
1932 | Copy(s, &anv, 1, NV); |
73cb7263 |
1933 | s += NVSIZE; |
92d41999 |
1934 | } |
08ca2aa3 |
1935 | DO_BO_UNPACK_N(anv, NV); |
1936 | if (!checksum) |
1937 | PUSHs(sv_2mortal(newSVnv(anv))); |
1938 | else |
73cb7263 |
1939 | cdouble += anv; |
1940 | } |
92d41999 |
1941 | break; |
1942 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
1943 | case 'D': |
73cb7263 |
1944 | while (len-- > 0) { |
08ca2aa3 |
1945 | long double aldouble; |
1946 | if (utf8) { |
1947 | if (!next_uni_bytes(aTHX_ &s, strend, (char *) &aldouble, |
1948 | sizeof(aldouble))) break; |
1949 | } else { |
73cb7263 |
1950 | Copy(s, &aldouble, 1, long double); |
73cb7263 |
1951 | s += LONG_DOUBLESIZE; |
73cb7263 |
1952 | } |
08ca2aa3 |
1953 | DO_BO_UNPACK_N(aldouble, long double); |
1954 | if (!checksum) |
1955 | PUSHs(sv_2mortal(newSVnv((NV)aldouble))); |
1956 | else |
1957 | cdouble += aldouble; |
92d41999 |
1958 | } |
1959 | break; |
1960 | #endif |
a6ec74c1 |
1961 | case 'u': |
1962 | /* MKS: |
1963 | * Initialise the decode mapping. By using a table driven |
1964 | * algorithm, the code will be character-set independent |
1965 | * (and just as fast as doing character arithmetic) |
1966 | */ |
1967 | if (PL_uudmap['M'] == 0) { |
1968 | int i; |
1969 | |
1970 | for (i = 0; i < sizeof(PL_uuemap); i += 1) |
1971 | PL_uudmap[(U8)PL_uuemap[i]] = i; |
1972 | /* |
1973 | * Because ' ' and '`' map to the same value, |
1974 | * we need to decode them both the same. |
1975 | */ |
1976 | PL_uudmap[' '] = 0; |
1977 | } |
08ca2aa3 |
1978 | { |
1979 | STRLEN l = (STRLEN) (strend - s) * 3 / 4; |
1980 | sv = sv_2mortal(NEWSV(42, l)); |
1981 | if (l) SvPOK_on(sv); |
1982 | } |
1983 | if (utf8) { |
1984 | while (next_uni_uu(aTHX_ &s, strend, &len)) { |
1985 | I32 a, b, c, d; |
1986 | char hunk[4]; |
1987 | |
1988 | hunk[3] = '\0'; |
1989 | while (len > 0) { |
1990 | next_uni_uu(aTHX_ &s, strend, &a); |
1991 | next_uni_uu(aTHX_ &s, strend, &b); |
1992 | next_uni_uu(aTHX_ &s, strend, &c); |
1993 | next_uni_uu(aTHX_ &s, strend, &d); |
1994 | hunk[0] = (char)((a << 2) | (b >> 4)); |
1995 | hunk[1] = (char)((b << 4) | (c >> 2)); |
1996 | hunk[2] = (char)((c << 6) | d); |
1997 | sv_catpvn(sv, hunk, (len > 3) ? 3 : len); |
1998 | len -= 3; |
1999 | } |
2000 | if (s < strend) { |
2001 | if (*s == '\n') s++; |
2002 | else { |
2003 | /* possible checksum byte */ |
2004 | char *skip = s+UTF8SKIP(s); |
2005 | if (skip < strend && *skip == '\n') s = skip+1; |
2006 | } |
2007 | } |
2008 | } |
2009 | } else { |
a6ec74c1 |
2010 | while (s < strend && *s > ' ' && ISUUCHAR(*s)) { |
2011 | I32 a, b, c, d; |
2012 | char hunk[4]; |
2013 | |
2014 | hunk[3] = '\0'; |
2015 | len = PL_uudmap[*(U8*)s++] & 077; |
2016 | while (len > 0) { |
2017 | if (s < strend && ISUUCHAR(*s)) |
2018 | a = PL_uudmap[*(U8*)s++] & 077; |
2019 | else |
2020 | a = 0; |
2021 | if (s < strend && ISUUCHAR(*s)) |
2022 | b = PL_uudmap[*(U8*)s++] & 077; |
2023 | else |
2024 | b = 0; |
2025 | if (s < strend && ISUUCHAR(*s)) |
2026 | c = PL_uudmap[*(U8*)s++] & 077; |
2027 | else |
2028 | c = 0; |
2029 | if (s < strend && ISUUCHAR(*s)) |
2030 | d = PL_uudmap[*(U8*)s++] & 077; |
2031 | else |
2032 | d = 0; |
eb160463 |
2033 | hunk[0] = (char)((a << 2) | (b >> 4)); |
2034 | hunk[1] = (char)((b << 4) | (c >> 2)); |
2035 | hunk[2] = (char)((c << 6) | d); |
a6ec74c1 |
2036 | sv_catpvn(sv, hunk, (len > 3) ? 3 : len); |
2037 | len -= 3; |
2038 | } |
2039 | if (*s == '\n') |
2040 | s++; |
92aa5668 |
2041 | else /* possible checksum byte */ |
2042 | if (s + 1 < strend && s[1] == '\n') |
2043 | s += 2; |
a6ec74c1 |
2044 | } |
08ca2aa3 |
2045 | } |
2046 | XPUSHs(sv); |
a6ec74c1 |
2047 | break; |
2048 | } |
49704364 |
2049 | |
a6ec74c1 |
2050 | if (checksum) { |
1109a392 |
2051 | if (strchr("fFdD", TYPE_NO_MODIFIERS(datumtype)) || |
92d41999 |
2052 | (checksum > bits_in_uv && |
08ca2aa3 |
2053 | strchr("cCsSiIlLnNUWvVqQjJ", TYPE_NO_MODIFIERS(datumtype))) ) { |
2054 | NV trouble, anv; |
a6ec74c1 |
2055 | |
08ca2aa3 |
2056 | anv = (NV) (1 << (checksum & 15)); |
a6ec74c1 |
2057 | while (checksum >= 16) { |
2058 | checksum -= 16; |
08ca2aa3 |
2059 | anv *= 65536.0; |
a6ec74c1 |
2060 | } |
a6ec74c1 |
2061 | while (cdouble < 0.0) |
08ca2aa3 |
2062 | cdouble += anv; |
2063 | cdouble = Perl_modf(cdouble / anv, &trouble) * anv; |
c4c5f44a |
2064 | sv = newSVnv(cdouble); |
a6ec74c1 |
2065 | } |
2066 | else { |
fa8ec7c1 |
2067 | if (checksum < bits_in_uv) { |
2068 | UV mask = ((UV)1 << checksum) - 1; |
92d41999 |
2069 | cuv &= mask; |
a6ec74c1 |
2070 | } |
c4c5f44a |
2071 | sv = newSVuv(cuv); |
a6ec74c1 |
2072 | } |
2073 | XPUSHs(sv_2mortal(sv)); |
2074 | checksum = 0; |
2075 | } |
49704364 |
2076 | |
2077 | if (symptr->flags & FLAG_SLASH){ |
2078 | if (SP - PL_stack_base - start_sp_offset <= 0) |
2079 | Perl_croak(aTHX_ "'/' must follow a numeric type in unpack"); |
2080 | if( next_symbol(symptr) ){ |
2081 | if( symptr->howlen == e_number ) |
2082 | Perl_croak(aTHX_ "Count after length/code in unpack" ); |
2083 | if( beyond ){ |
2084 | /* ...end of char buffer then no decent length available */ |
2085 | Perl_croak(aTHX_ "length/code after end of string in unpack" ); |
2086 | } else { |
2087 | /* take top of stack (hope it's numeric) */ |
2088 | len = POPi; |
2089 | if( len < 0 ) |
2090 | Perl_croak(aTHX_ "Negative '/' count in unpack" ); |
2091 | } |
2092 | } else { |
2093 | Perl_croak(aTHX_ "Code missing after '/' in unpack" ); |
2094 | } |
2095 | datumtype = symptr->code; |
21c16052 |
2096 | explicit_length = FALSE; |
49704364 |
2097 | goto redo_switch; |
2098 | } |
a6ec74c1 |
2099 | } |
49704364 |
2100 | |
18529408 |
2101 | if (new_s) |
2102 | *new_s = s; |
2103 | PUTBACK; |
2104 | return SP - PL_stack_base - start_sp_offset; |
2105 | } |
2106 | |
2107 | PP(pp_unpack) |
2108 | { |
2109 | dSP; |
bab9c0ac |
2110 | dPOPPOPssrl; |
18529408 |
2111 | I32 gimme = GIMME_V; |
2112 | STRLEN llen; |
2113 | STRLEN rlen; |
08ca2aa3 |
2114 | char *pat = SvPV(left, llen); |
2115 | char *s = SvPV(right, rlen); |
18529408 |
2116 | char *strend = s + rlen; |
08ca2aa3 |
2117 | char *patend = pat + llen; |
2118 | I32 cnt; |
18529408 |
2119 | |
2120 | PUTBACK; |
7accc089 |
2121 | cnt = unpackstring(pat, patend, s, strend, |
49704364 |
2122 | ((gimme == G_SCALAR) ? FLAG_UNPACK_ONLY_ONE : 0) |
2123 | | (DO_UTF8(right) ? FLAG_UNPACK_DO_UTF8 : 0)); |
2124 | |
18529408 |
2125 | SPAGAIN; |
2126 | if ( !cnt && gimme == G_SCALAR ) |
2127 | PUSHs(&PL_sv_undef); |
a6ec74c1 |
2128 | RETURN; |
2129 | } |
2130 | |
2131 | STATIC void |
2132 | S_doencodes(pTHX_ register SV *sv, register char *s, register I32 len) |
2133 | { |
2134 | char hunk[5]; |
2135 | |
2136 | *hunk = PL_uuemap[len]; |
2137 | sv_catpvn(sv, hunk, 1); |
2138 | hunk[4] = '\0'; |
2139 | while (len > 2) { |
2140 | hunk[0] = PL_uuemap[(077 & (*s >> 2))]; |
2141 | hunk[1] = PL_uuemap[(077 & (((*s << 4) & 060) | ((s[1] >> 4) & 017)))]; |
2142 | hunk[2] = PL_uuemap[(077 & (((s[1] << 2) & 074) | ((s[2] >> 6) & 03)))]; |
2143 | hunk[3] = PL_uuemap[(077 & (s[2] & 077))]; |
2144 | sv_catpvn(sv, hunk, 4); |
2145 | s += 3; |
2146 | len -= 3; |
2147 | } |
2148 | if (len > 0) { |
2149 | char r = (len > 1 ? s[1] : '\0'); |
2150 | hunk[0] = PL_uuemap[(077 & (*s >> 2))]; |
2151 | hunk[1] = PL_uuemap[(077 & (((*s << 4) & 060) | ((r >> 4) & 017)))]; |
2152 | hunk[2] = PL_uuemap[(077 & ((r << 2) & 074))]; |
2153 | hunk[3] = PL_uuemap[0]; |
2154 | sv_catpvn(sv, hunk, 4); |
2155 | } |
2156 | sv_catpvn(sv, "\n", 1); |
2157 | } |
2158 | |
2159 | STATIC SV * |
2160 | S_is_an_int(pTHX_ char *s, STRLEN l) |
2161 | { |
2162 | STRLEN n_a; |
2163 | SV *result = newSVpvn(s, l); |
2164 | char *result_c = SvPV(result, n_a); /* convenience */ |
2165 | char *out = result_c; |
2166 | bool skip = 1; |
2167 | bool ignore = 0; |
2168 | |
2169 | while (*s) { |
2170 | switch (*s) { |
2171 | case ' ': |
2172 | break; |
2173 | case '+': |
2174 | if (!skip) { |
2175 | SvREFCNT_dec(result); |
2176 | return (NULL); |
2177 | } |
2178 | break; |
2179 | case '0': |
2180 | case '1': |
2181 | case '2': |
2182 | case '3': |
2183 | case '4': |
2184 | case '5': |
2185 | case '6': |
2186 | case '7': |
2187 | case '8': |
2188 | case '9': |
2189 | skip = 0; |
2190 | if (!ignore) { |
2191 | *(out++) = *s; |
2192 | } |
2193 | break; |
2194 | case '.': |
2195 | ignore = 1; |
2196 | break; |
2197 | default: |
2198 | SvREFCNT_dec(result); |
2199 | return (NULL); |
2200 | } |
2201 | s++; |
2202 | } |
2203 | *(out++) = '\0'; |
2204 | SvCUR_set(result, out - result_c); |
2205 | return (result); |
2206 | } |
2207 | |
2208 | /* pnum must be '\0' terminated */ |
2209 | STATIC int |
2210 | S_div128(pTHX_ SV *pnum, bool *done) |
2211 | { |
2212 | STRLEN len; |
2213 | char *s = SvPV(pnum, len); |
2214 | int m = 0; |
2215 | int r = 0; |
2216 | char *t = s; |
2217 | |
2218 | *done = 1; |
2219 | while (*t) { |
2220 | int i; |
2221 | |
2222 | i = m * 10 + (*t - '0'); |
2223 | m = i & 0x7F; |
2224 | r = (i >> 7); /* r < 10 */ |
2225 | if (r) { |
2226 | *done = 0; |
2227 | } |
2228 | *(t++) = '0' + r; |
2229 | } |
2230 | *(t++) = '\0'; |
2231 | SvCUR_set(pnum, (STRLEN) (t - s)); |
2232 | return (m); |
2233 | } |
2234 | |
49704364 |
2235 | |
a6ec74c1 |
2236 | |
18529408 |
2237 | /* |
2238 | =for apidoc pack_cat |
2239 | |
7accc089 |
2240 | The engine implementing pack() Perl function. Note: parameters next_in_list and |
2241 | flags are not used. This call should not be used; use packlist instead. |
18529408 |
2242 | |
2243 | =cut */ |
2244 | |
49704364 |
2245 | |
18529408 |
2246 | void |
2247 | Perl_pack_cat(pTHX_ SV *cat, char *pat, register char *patend, register SV **beglist, SV **endlist, SV ***next_in_list, U32 flags) |
a6ec74c1 |
2248 | { |
49704364 |
2249 | tempsym_t sym = { 0 }; |
2250 | sym.patptr = pat; |
2251 | sym.patend = patend; |
7accc089 |
2252 | sym.flags = FLAG_PACK; |
2253 | |
2254 | (void)pack_rec( cat, &sym, beglist, endlist ); |
2255 | } |
2256 | |
2257 | |
2258 | /* |
2259 | =for apidoc packlist |
2260 | |
2261 | The engine implementing pack() Perl function. |
2262 | |
2263 | =cut */ |
2264 | |
2265 | |
2266 | void |
2267 | Perl_packlist(pTHX_ SV *cat, char *pat, register char *patend, register SV **beglist, SV **endlist ) |
2268 | { |
2269 | tempsym_t sym = { 0 }; |
2270 | sym.patptr = pat; |
2271 | sym.patend = patend; |
2272 | sym.flags = FLAG_PACK; |
49704364 |
2273 | |
2274 | (void)pack_rec( cat, &sym, beglist, endlist ); |
2275 | } |
2276 | |
2277 | |
2278 | STATIC |
2279 | SV ** |
2280 | S_pack_rec(pTHX_ SV *cat, register tempsym_t* symptr, register SV **beglist, SV **endlist ) |
2281 | { |
a6ec74c1 |
2282 | register I32 items; |
2283 | STRLEN fromlen; |
49704364 |
2284 | register I32 len = 0; |
a6ec74c1 |
2285 | SV *fromstr; |
2286 | /*SUPPRESS 442*/ |
2287 | static char null10[] = {0,0,0,0,0,0,0,0,0,0}; |
2288 | static char *space10 = " "; |
49704364 |
2289 | bool found; |
a6ec74c1 |
2290 | |
2291 | /* These must not be in registers: */ |
2292 | char achar; |
ef108786 |
2293 | I16 ai16; |
2294 | U16 au16; |
2295 | I32 ai32; |
2296 | U32 au32; |
a6ec74c1 |
2297 | #ifdef HAS_QUAD |
2298 | Quad_t aquad; |
2299 | Uquad_t auquad; |
2300 | #endif |
ef108786 |
2301 | #if SHORTSIZE != SIZE16 |
2302 | short ashort; |
2303 | unsigned short aushort; |
2304 | #endif |
2305 | int aint; |
2306 | unsigned int auint; |
2307 | #if LONGSIZE != SIZE32 |
2308 | long along; |
2309 | unsigned long aulong; |
2310 | #endif |
a6ec74c1 |
2311 | char *aptr; |
2312 | float afloat; |
2313 | double adouble; |
ef108786 |
2314 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
2315 | long double aldouble; |
2316 | #endif |
2317 | IV aiv; |
2318 | UV auv; |
2319 | NV anv; |
2320 | |
49704364 |
2321 | int strrelbeg = SvCUR(cat); |
2322 | tempsym_t lookahead; |
a6ec74c1 |
2323 | |
18529408 |
2324 | items = endlist - beglist; |
49704364 |
2325 | found = next_symbol( symptr ); |
2326 | |
18529408 |
2327 | #ifndef PACKED_IS_OCTETS |
49704364 |
2328 | if (symptr->level == 0 && found && symptr->code == 'U' ){ |
18529408 |
2329 | SvUTF8_on(cat); |
49704364 |
2330 | } |
18529408 |
2331 | #endif |
49704364 |
2332 | |
2333 | while (found) { |
a6ec74c1 |
2334 | SV *lengthcode = Nullsv; |
18529408 |
2335 | #define NEXTFROM ( lengthcode ? lengthcode : items-- > 0 ? *beglist++ : &PL_sv_no) |
49704364 |
2336 | |
2337 | I32 datumtype = symptr->code; |
2338 | howlen_t howlen; |
2339 | |
2340 | switch( howlen = symptr->howlen ){ |
2341 | case e_no_len: |
2342 | case e_number: |
2343 | len = symptr->length; |
2344 | break; |
2345 | case e_star: |
1109a392 |
2346 | len = strchr("@Xxu", TYPE_NO_MODIFIERS(datumtype)) ? 0 : items; |
49704364 |
2347 | break; |
2348 | } |
2349 | |
2350 | /* Look ahead for next symbol. Do we have code/code? */ |
2351 | lookahead = *symptr; |
2352 | found = next_symbol(&lookahead); |
2353 | if ( symptr->flags & FLAG_SLASH ) { |
2354 | if (found){ |
2355 | if ( 0 == strchr( "aAZ", lookahead.code ) || |
2356 | e_star != lookahead.howlen ) |
2357 | Perl_croak(aTHX_ "'/' must be followed by 'a*', 'A*' or 'Z*' in pack"); |
2358 | lengthcode = sv_2mortal(newSViv(sv_len(items > 0 |
18529408 |
2359 | ? *beglist : &PL_sv_no) |
49704364 |
2360 | + (lookahead.code == 'Z' ? 1 : 0))); |
2361 | } else { |
2362 | Perl_croak(aTHX_ "Code missing after '/' in pack"); |
2363 | } |
a6ec74c1 |
2364 | } |
49704364 |
2365 | |
1109a392 |
2366 | switch(TYPE_NO_ENDIANNESS(datumtype)) { |
a6ec74c1 |
2367 | default: |
1109a392 |
2368 | Perl_croak(aTHX_ "Invalid type '%c' in pack", (int)TYPE_NO_MODIFIERS(datumtype)); |
a6ec74c1 |
2369 | case '%': |
49704364 |
2370 | Perl_croak(aTHX_ "'%%' may not be used in pack"); |
a6ec74c1 |
2371 | case '@': |
49704364 |
2372 | len += strrelbeg - SvCUR(cat); |
a6ec74c1 |
2373 | if (len > 0) |
2374 | goto grow; |
2375 | len = -len; |
2376 | if (len > 0) |
2377 | goto shrink; |
2378 | break; |
18529408 |
2379 | case '(': |
2380 | { |
49704364 |
2381 | tempsym_t savsym = *symptr; |
66c611c5 |
2382 | U32 group_modifiers = TYPE_MODIFIERS(datumtype & ~symptr->flags); |
2383 | symptr->flags |= group_modifiers; |
49704364 |
2384 | symptr->patend = savsym.grpend; |
2385 | symptr->level++; |
18529408 |
2386 | while (len--) { |
49704364 |
2387 | symptr->patptr = savsym.grpbeg; |
2388 | beglist = pack_rec(cat, symptr, beglist, endlist ); |
2389 | if (savsym.howlen == e_star && beglist == endlist) |
18529408 |
2390 | break; /* No way to continue */ |
2391 | } |
66c611c5 |
2392 | symptr->flags &= ~group_modifiers; |
49704364 |
2393 | lookahead.flags = symptr->flags; |
2394 | *symptr = savsym; |
18529408 |
2395 | break; |
2396 | } |
62f95557 |
2397 | case 'X' | TYPE_IS_SHRIEKING: |
2398 | if (!len) /* Avoid division by 0 */ |
2399 | len = 1; |
2400 | len = (SvCUR(cat)) % len; |
2401 | /* FALL THROUGH */ |
a6ec74c1 |
2402 | case 'X': |
2403 | shrink: |
eb160463 |
2404 | if ((I32)SvCUR(cat) < len) |
49704364 |
2405 | Perl_croak(aTHX_ "'X' outside of string in pack"); |
a6ec74c1 |
2406 | SvCUR(cat) -= len; |
2407 | *SvEND(cat) = '\0'; |
2408 | break; |
62f95557 |
2409 | case 'x' | TYPE_IS_SHRIEKING: |
2410 | if (!len) /* Avoid division by 0 */ |
2411 | len = 1; |
2412 | aint = (SvCUR(cat)) % len; |
2413 | if (aint) /* Other portable ways? */ |
2414 | len = len - aint; |
2415 | else |
2416 | len = 0; |
2417 | /* FALL THROUGH */ |
49704364 |
2418 | |
a6ec74c1 |
2419 | case 'x': |
2420 | grow: |
2421 | while (len >= 10) { |
2422 | sv_catpvn(cat, null10, 10); |
2423 | len -= 10; |
2424 | } |
2425 | sv_catpvn(cat, null10, len); |
2426 | break; |
2427 | case 'A': |
2428 | case 'Z': |
2429 | case 'a': |
2430 | fromstr = NEXTFROM; |
2431 | aptr = SvPV(fromstr, fromlen); |
49704364 |
2432 | if (howlen == e_star) { |
a6ec74c1 |
2433 | len = fromlen; |
2434 | if (datumtype == 'Z') |
2435 | ++len; |
2436 | } |
eb160463 |
2437 | if ((I32)fromlen >= len) { |
a6ec74c1 |
2438 | sv_catpvn(cat, aptr, len); |
f0df5f8b |
2439 | if (datumtype == 'Z' && len > 0) |
a6ec74c1 |
2440 | *(SvEND(cat)-1) = '\0'; |
2441 | } |
2442 | else { |
2443 | sv_catpvn(cat, aptr, fromlen); |
2444 | len -= fromlen; |
2445 | if (datumtype == 'A') { |
2446 | while (len >= 10) { |
2447 | sv_catpvn(cat, space10, 10); |
2448 | len -= 10; |
2449 | } |
2450 | sv_catpvn(cat, space10, len); |
2451 | } |
2452 | else { |
2453 | while (len >= 10) { |
2454 | sv_catpvn(cat, null10, 10); |
2455 | len -= 10; |
2456 | } |
2457 | sv_catpvn(cat, null10, len); |
2458 | } |
2459 | } |
2460 | break; |
2461 | case 'B': |
2462 | case 'b': |
2463 | { |
2464 | register char *str; |
2465 | I32 saveitems; |
2466 | |
2467 | fromstr = NEXTFROM; |
2468 | saveitems = items; |
2469 | str = SvPV(fromstr, fromlen); |
49704364 |
2470 | if (howlen == e_star) |
a6ec74c1 |
2471 | len = fromlen; |
2472 | aint = SvCUR(cat); |
2473 | SvCUR(cat) += (len+7)/8; |
2474 | SvGROW(cat, SvCUR(cat) + 1); |
2475 | aptr = SvPVX(cat) + aint; |
eb160463 |
2476 | if (len > (I32)fromlen) |
a6ec74c1 |
2477 | len = fromlen; |
2478 | aint = len; |
2479 | items = 0; |
2480 | if (datumtype == 'B') { |
2481 | for (len = 0; len++ < aint;) { |
2482 | items |= *str++ & 1; |
2483 | if (len & 7) |
2484 | items <<= 1; |
2485 | else { |
2486 | *aptr++ = items & 0xff; |
2487 | items = 0; |
2488 | } |
2489 | } |
2490 | } |
2491 | else { |
2492 | for (len = 0; len++ < aint;) { |
2493 | if (*str++ & 1) |
2494 | items |= 128; |
2495 | if (len & 7) |
2496 | items >>= 1; |
2497 | else { |
2498 | *aptr++ = items & 0xff; |
2499 | items = 0; |
2500 | } |
2501 | } |
2502 | } |
2503 | if (aint & 7) { |
2504 | if (datumtype == 'B') |
2505 | items <<= 7 - (aint & 7); |
2506 | else |
2507 | items >>= 7 - (aint & 7); |
2508 | *aptr++ = items & 0xff; |
2509 | } |
2510 | str = SvPVX(cat) + SvCUR(cat); |
2511 | while (aptr <= str) |
2512 | *aptr++ = '\0'; |
2513 | |
2514 | items = saveitems; |
2515 | } |
2516 | break; |
2517 | case 'H': |
2518 | case 'h': |
2519 | { |
2520 | register char *str; |
2521 | I32 saveitems; |
2522 | |
2523 | fromstr = NEXTFROM; |
2524 | saveitems = items; |
2525 | str = SvPV(fromstr, fromlen); |
49704364 |
2526 | if (howlen == e_star) |
a6ec74c1 |
2527 | len = fromlen; |
2528 | aint = SvCUR(cat); |
2529 | SvCUR(cat) += (len+1)/2; |
2530 | SvGROW(cat, SvCUR(cat) + 1); |
2531 | aptr = SvPVX(cat) + aint; |
eb160463 |
2532 | if (len > (I32)fromlen) |
a6ec74c1 |
2533 | len = fromlen; |
2534 | aint = len; |
2535 | items = 0; |
2536 | if (datumtype == 'H') { |
2537 | for (len = 0; len++ < aint;) { |
2538 | if (isALPHA(*str)) |
2539 | items |= ((*str++ & 15) + 9) & 15; |
2540 | else |
2541 | items |= *str++ & 15; |
2542 | if (len & 1) |
2543 | items <<= 4; |
2544 | else { |
2545 | *aptr++ = items & 0xff; |
2546 | items = 0; |
2547 | } |
2548 | } |
2549 | } |
2550 | else { |
2551 | for (len = 0; len++ < aint;) { |
2552 | if (isALPHA(*str)) |
2553 | items |= (((*str++ & 15) + 9) & 15) << 4; |
2554 | else |
2555 | items |= (*str++ & 15) << 4; |
2556 | if (len & 1) |
2557 | items >>= 4; |
2558 | else { |
2559 | *aptr++ = items & 0xff; |
2560 | items = 0; |
2561 | } |
2562 | } |
2563 | } |
2564 | if (aint & 1) |
2565 | *aptr++ = items & 0xff; |
2566 | str = SvPVX(cat) + SvCUR(cat); |
2567 | while (aptr <= str) |
2568 | *aptr++ = '\0'; |
2569 | |
2570 | items = saveitems; |
2571 | } |
2572 | break; |
2573 | case 'C': |
2574 | case 'c': |
2575 | while (len-- > 0) { |
2576 | fromstr = NEXTFROM; |
1109a392 |
2577 | switch (TYPE_NO_MODIFIERS(datumtype)) { |
a6ec74c1 |
2578 | case 'C': |
2579 | aint = SvIV(fromstr); |
2580 | if ((aint < 0 || aint > 255) && |
2581 | ckWARN(WARN_PACK)) |
9014280d |
2582 | Perl_warner(aTHX_ packWARN(WARN_PACK), |
49704364 |
2583 | "Character in 'C' format wrapped in pack"); |
a6ec74c1 |
2584 | achar = aint & 255; |
2585 | sv_catpvn(cat, &achar, sizeof(char)); |
2586 | break; |
2587 | case 'c': |
2588 | aint = SvIV(fromstr); |
2589 | if ((aint < -128 || aint > 127) && |
2590 | ckWARN(WARN_PACK)) |
9014280d |
2591 | Perl_warner(aTHX_ packWARN(WARN_PACK), |
49704364 |
2592 | "Character in 'c' format wrapped in pack" ); |
a6ec74c1 |
2593 | achar = aint & 255; |
2594 | sv_catpvn(cat, &achar, sizeof(char)); |
2595 | break; |
2596 | } |
2597 | } |
2598 | break; |
2599 | case 'U': |
2600 | while (len-- > 0) { |
2601 | fromstr = NEXTFROM; |
e87322b2 |
2602 | auint = UNI_TO_NATIVE(SvUV(fromstr)); |
89ebb4a3 |
2603 | SvGROW(cat, SvCUR(cat) + UTF8_MAXBYTES + 1); |
52ea3e69 |
2604 | SvCUR_set(cat, |
2605 | (char*)uvchr_to_utf8_flags((U8*)SvEND(cat), |
2606 | auint, |
2607 | ckWARN(WARN_UTF8) ? |
2608 | 0 : UNICODE_ALLOW_ANY) |
2609 | - SvPVX(cat)); |
a6ec74c1 |
2610 | } |
2611 | *SvEND(cat) = '\0'; |
2612 | break; |
2613 | /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */ |
2614 | case 'f': |
a6ec74c1 |
2615 | while (len-- > 0) { |
2616 | fromstr = NEXTFROM; |
5cdb9e01 |
2617 | #ifdef __VOS__ |
2618 | /* VOS does not automatically map a floating-point overflow |
2619 | during conversion from double to float into infinity, so we |
2620 | do it by hand. This code should either be generalized for |
2621 | any OS that needs it, or removed if and when VOS implements |
2622 | posix-976 (suggestion to support mapping to infinity). |
2623 | Paul.Green@stratus.com 02-04-02. */ |
2624 | if (SvNV(fromstr) > FLT_MAX) |
2625 | afloat = _float_constants[0]; /* single prec. inf. */ |
2626 | else if (SvNV(fromstr) < -FLT_MAX) |
2627 | afloat = _float_constants[0]; /* single prec. inf. */ |
2628 | else afloat = (float)SvNV(fromstr); |
2629 | #else |
baf3cf9c |
2630 | # if defined(VMS) && !defined(__IEEE_FP) |
2631 | /* IEEE fp overflow shenanigans are unavailable on VAX and optional |
2632 | * on Alpha; fake it if we don't have them. |
2633 | */ |
2634 | if (SvNV(fromstr) > FLT_MAX) |
2635 | afloat = FLT_MAX; |
2636 | else if (SvNV(fromstr) < -FLT_MAX) |
2637 | afloat = -FLT_MAX; |
2638 | else afloat = (float)SvNV(fromstr); |
2639 | # else |
a6ec74c1 |
2640 | afloat = (float)SvNV(fromstr); |
baf3cf9c |
2641 | # endif |
5cdb9e01 |
2642 | #endif |
1109a392 |
2643 | DO_BO_PACK_N(afloat, float); |
a6ec74c1 |
2644 | sv_catpvn(cat, (char *)&afloat, sizeof (float)); |
2645 | } |
2646 | break; |
2647 | case 'd': |
a6ec74c1 |
2648 | while (len-- > 0) { |
2649 | fromstr = NEXTFROM; |
5cdb9e01 |
2650 | #ifdef __VOS__ |
2651 | /* VOS does not automatically map a floating-point overflow |
2652 | during conversion from long double to double into infinity, |
2653 | so we do it by hand. This code should either be generalized |
2654 | for any OS that needs it, or removed if and when VOS |
2655 | implements posix-976 (suggestion to support mapping to |
2656 | infinity). Paul.Green@stratus.com 02-04-02. */ |
2657 | if (SvNV(fromstr) > DBL_MAX) |
2658 | adouble = _double_constants[0]; /* double prec. inf. */ |
2659 | else if (SvNV(fromstr) < -DBL_MAX) |
2660 | adouble = _double_constants[0]; /* double prec. inf. */ |
2661 | else adouble = (double)SvNV(fromstr); |
2662 | #else |
baf3cf9c |
2663 | # if defined(VMS) && !defined(__IEEE_FP) |
2664 | /* IEEE fp overflow shenanigans are unavailable on VAX and optional |
2665 | * on Alpha; fake it if we don't have them. |
2666 | */ |
2667 | if (SvNV(fromstr) > DBL_MAX) |
2668 | adouble = DBL_MAX; |
2669 | else if (SvNV(fromstr) < -DBL_MAX) |
2670 | adouble = -DBL_MAX; |
2671 | else adouble = (double)SvNV(fromstr); |
2672 | # else |
a6ec74c1 |
2673 | adouble = (double)SvNV(fromstr); |
baf3cf9c |
2674 | # endif |
5cdb9e01 |
2675 | #endif |
1109a392 |
2676 | DO_BO_PACK_N(adouble, double); |
a6ec74c1 |
2677 | sv_catpvn(cat, (char *)&adouble, sizeof (double)); |
2678 | } |
2679 | break; |
92d41999 |
2680 | case 'F': |
1109a392 |
2681 | Zero(&anv, 1, NV); /* can be long double with unused bits */ |
92d41999 |
2682 | while (len-- > 0) { |
2683 | fromstr = NEXTFROM; |
2684 | anv = SvNV(fromstr); |
1109a392 |
2685 | DO_BO_PACK_N(anv, NV); |
92d41999 |
2686 | sv_catpvn(cat, (char *)&anv, NVSIZE); |
2687 | } |
2688 | break; |
2689 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
2690 | case 'D': |
1109a392 |
2691 | /* long doubles can have unused bits, which may be nonzero */ |
2692 | Zero(&aldouble, 1, long double); |
92d41999 |
2693 | while (len-- > 0) { |
2694 | fromstr = NEXTFROM; |
2695 | aldouble = (long double)SvNV(fromstr); |
1109a392 |
2696 | DO_BO_PACK_N(aldouble, long double); |
92d41999 |
2697 | sv_catpvn(cat, (char *)&aldouble, LONG_DOUBLESIZE); |
2698 | } |
2699 | break; |
2700 | #endif |
7212898e |
2701 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
068bd2e7 |
2702 | case 'n' | TYPE_IS_SHRIEKING: |
7212898e |
2703 | #endif |
a6ec74c1 |
2704 | case 'n': |
2705 | while (len-- > 0) { |
2706 | fromstr = NEXTFROM; |
ef108786 |
2707 | ai16 = (I16)SvIV(fromstr); |
a6ec74c1 |
2708 | #ifdef HAS_HTONS |
ef108786 |
2709 | ai16 = PerlSock_htons(ai16); |
a6ec74c1 |
2710 | #endif |
ef108786 |
2711 | CAT16(cat, &ai16); |
a6ec74c1 |
2712 | } |
2713 | break; |
7212898e |
2714 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
068bd2e7 |
2715 | case 'v' | TYPE_IS_SHRIEKING: |
7212898e |
2716 | #endif |
a6ec74c1 |
2717 | case 'v': |
2718 | while (len-- > 0) { |
2719 | fromstr = NEXTFROM; |
ef108786 |
2720 | ai16 = (I16)SvIV(fromstr); |
a6ec74c1 |
2721 | #ifdef HAS_HTOVS |
ef108786 |
2722 | ai16 = htovs(ai16); |
a6ec74c1 |
2723 | #endif |
ef108786 |
2724 | CAT16(cat, &ai16); |
a6ec74c1 |
2725 | } |
2726 | break; |
49704364 |
2727 | case 'S' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2728 | #if SHORTSIZE != SIZE16 |
49704364 |
2729 | { |
a6ec74c1 |
2730 | while (len-- > 0) { |
2731 | fromstr = NEXTFROM; |
2732 | aushort = SvUV(fromstr); |
1109a392 |
2733 | DO_BO_PACK(aushort, s); |
a6ec74c1 |
2734 | sv_catpvn(cat, (char *)&aushort, sizeof(unsigned short)); |
2735 | } |
49704364 |
2736 | } |
2737 | break; |
2738 | #else |
2739 | /* Fall through! */ |
a6ec74c1 |
2740 | #endif |
49704364 |
2741 | case 'S': |
a6ec74c1 |
2742 | { |
a6ec74c1 |
2743 | while (len-- > 0) { |
2744 | fromstr = NEXTFROM; |
ef108786 |
2745 | au16 = (U16)SvUV(fromstr); |
2746 | DO_BO_PACK(au16, 16); |
2747 | CAT16(cat, &au16); |
a6ec74c1 |
2748 | } |
2749 | |
2750 | } |
2751 | break; |
49704364 |
2752 | case 's' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2753 | #if SHORTSIZE != SIZE16 |
49704364 |
2754 | { |
a6ec74c1 |
2755 | while (len-- > 0) { |
2756 | fromstr = NEXTFROM; |
2757 | ashort = SvIV(fromstr); |
1109a392 |
2758 | DO_BO_PACK(ashort, s); |
a6ec74c1 |
2759 | sv_catpvn(cat, (char *)&ashort, sizeof(short)); |
2760 | } |
2761 | } |
49704364 |
2762 | break; |
2763 | #else |
2764 | /* Fall through! */ |
a6ec74c1 |
2765 | #endif |
49704364 |
2766 | case 's': |
2767 | while (len-- > 0) { |
2768 | fromstr = NEXTFROM; |
ef108786 |
2769 | ai16 = (I16)SvIV(fromstr); |
2770 | DO_BO_PACK(ai16, 16); |
2771 | CAT16(cat, &ai16); |
a6ec74c1 |
2772 | } |
2773 | break; |
2774 | case 'I': |
49704364 |
2775 | case 'I' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2776 | while (len-- > 0) { |
2777 | fromstr = NEXTFROM; |
2778 | auint = SvUV(fromstr); |
1109a392 |
2779 | DO_BO_PACK(auint, i); |
a6ec74c1 |
2780 | sv_catpvn(cat, (char*)&auint, sizeof(unsigned int)); |
2781 | } |
2782 | break; |
92d41999 |
2783 | case 'j': |
2784 | while (len-- > 0) { |
2785 | fromstr = NEXTFROM; |
2786 | aiv = SvIV(fromstr); |
1109a392 |
2787 | #if IVSIZE == INTSIZE |
2788 | DO_BO_PACK(aiv, i); |
2789 | #elif IVSIZE == LONGSIZE |
2790 | DO_BO_PACK(aiv, l); |
2791 | #elif defined(HAS_QUAD) && IVSIZE == U64SIZE |
2792 | DO_BO_PACK(aiv, 64); |
2793 | #endif |
92d41999 |
2794 | sv_catpvn(cat, (char*)&aiv, IVSIZE); |
2795 | } |
2796 | break; |
2797 | case 'J': |
2798 | while (len-- > 0) { |
2799 | fromstr = NEXTFROM; |
2800 | auv = SvUV(fromstr); |
1109a392 |
2801 | #if UVSIZE == INTSIZE |
2802 | DO_BO_PACK(auv, i); |
2803 | #elif UVSIZE == LONGSIZE |
2804 | DO_BO_PACK(auv, l); |
2805 | #elif defined(HAS_QUAD) && UVSIZE == U64SIZE |
2806 | DO_BO_PACK(auv, 64); |
2807 | #endif |
92d41999 |
2808 | sv_catpvn(cat, (char*)&auv, UVSIZE); |
2809 | } |
2810 | break; |
a6ec74c1 |
2811 | case 'w': |
2812 | while (len-- > 0) { |
2813 | fromstr = NEXTFROM; |
15e9f109 |
2814 | anv = SvNV(fromstr); |
a6ec74c1 |
2815 | |
15e9f109 |
2816 | if (anv < 0) |
49704364 |
2817 | Perl_croak(aTHX_ "Cannot compress negative numbers in pack"); |
a6ec74c1 |
2818 | |
196b62db |
2819 | /* 0xFFFFFFFFFFFFFFFF may cast to 18446744073709551616.0, |
2820 | which is == UV_MAX_P1. IOK is fine (instead of UV_only), as |
2821 | any negative IVs will have already been got by the croak() |
2822 | above. IOK is untrue for fractions, so we test them |
2823 | against UV_MAX_P1. */ |
15e9f109 |
2824 | if (SvIOK(fromstr) || anv < UV_MAX_P1) |
a6ec74c1 |
2825 | { |
7c1b502b |
2826 | char buf[(sizeof(UV)*8)/7+1]; |
a6ec74c1 |
2827 | char *in = buf + sizeof(buf); |
196b62db |
2828 | UV auv = SvUV(fromstr); |
a6ec74c1 |
2829 | |
2830 | do { |
eb160463 |
2831 | *--in = (char)((auv & 0x7f) | 0x80); |
a6ec74c1 |
2832 | auv >>= 7; |
2833 | } while (auv); |
2834 | buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */ |
2835 | sv_catpvn(cat, in, (buf + sizeof(buf)) - in); |
2836 | } |
2837 | else if (SvPOKp(fromstr)) { /* decimal string arithmetics */ |
2838 | char *from, *result, *in; |
2839 | SV *norm; |
2840 | STRLEN len; |
2841 | bool done; |
2842 | |
2843 | /* Copy string and check for compliance */ |
2844 | from = SvPV(fromstr, len); |
2845 | if ((norm = is_an_int(from, len)) == NULL) |
49704364 |
2846 | Perl_croak(aTHX_ "Can only compress unsigned integers in pack"); |
a6ec74c1 |
2847 | |
2848 | New('w', result, len, char); |
2849 | in = result + len; |
2850 | done = FALSE; |
2851 | while (!done) |
2852 | *--in = div128(norm, &done) | 0x80; |
2853 | result[len - 1] &= 0x7F; /* clear continue bit */ |
2854 | sv_catpvn(cat, in, (result + len) - in); |
2855 | Safefree(result); |
2856 | SvREFCNT_dec(norm); /* free norm */ |
2857 | } |
2858 | else if (SvNOKp(fromstr)) { |
0258719b |
2859 | /* 10**NV_MAX_10_EXP is the largest power of 10 |
2860 | so 10**(NV_MAX_10_EXP+1) is definately unrepresentable |
2861 | given 10**(NV_MAX_10_EXP+1) == 128 ** x solve for x: |
2862 | x = (NV_MAX_10_EXP+1) * log (10) / log (128) |
2863 | And with that many bytes only Inf can overflow. |
8f8d40ab |
2864 | Some C compilers are strict about integral constant |
2865 | expressions so we conservatively divide by a slightly |
2866 | smaller integer instead of multiplying by the exact |
2867 | floating-point value. |
0258719b |
2868 | */ |
2869 | #ifdef NV_MAX_10_EXP |
8f8d40ab |
2870 | /* char buf[1 + (int)((NV_MAX_10_EXP + 1) * 0.47456)]; -- invalid C */ |
2871 | char buf[1 + (int)((NV_MAX_10_EXP + 1) / 2)]; /* valid C */ |
0258719b |
2872 | #else |
8f8d40ab |
2873 | /* char buf[1 + (int)((308 + 1) * 0.47456)]; -- invalid C */ |
2874 | char buf[1 + (int)((308 + 1) / 2)]; /* valid C */ |
0258719b |
2875 | #endif |
a6ec74c1 |
2876 | char *in = buf + sizeof(buf); |
2877 | |
15e9f109 |
2878 | anv = Perl_floor(anv); |
a6ec74c1 |
2879 | do { |
15e9f109 |
2880 | NV next = Perl_floor(anv / 128); |
a6ec74c1 |
2881 | if (in <= buf) /* this cannot happen ;-) */ |
49704364 |
2882 | Perl_croak(aTHX_ "Cannot compress integer in pack"); |
0258719b |
2883 | *--in = (unsigned char)(anv - (next * 128)) | 0x80; |
15e9f109 |
2884 | anv = next; |
2885 | } while (anv > 0); |
a6ec74c1 |
2886 | buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */ |
2887 | sv_catpvn(cat, in, (buf + sizeof(buf)) - in); |
2888 | } |
735b914b |
2889 | else { |
2890 | char *from, *result, *in; |
2891 | SV *norm; |
2892 | STRLEN len; |
2893 | bool done; |
2894 | |
2895 | /* Copy string and check for compliance */ |
2896 | from = SvPV(fromstr, len); |
2897 | if ((norm = is_an_int(from, len)) == NULL) |
49704364 |
2898 | Perl_croak(aTHX_ "Can only compress unsigned integers in pack"); |
735b914b |
2899 | |
2900 | New('w', result, len, char); |
2901 | in = result + len; |
2902 | done = FALSE; |
2903 | while (!done) |
2904 | *--in = div128(norm, &done) | 0x80; |
2905 | result[len - 1] &= 0x7F; /* clear continue bit */ |
2906 | sv_catpvn(cat, in, (result + len) - in); |
2907 | Safefree(result); |
2908 | SvREFCNT_dec(norm); /* free norm */ |
2909 | } |
a6ec74c1 |
2910 | } |
2911 | break; |
2912 | case 'i': |
49704364 |
2913 | case 'i' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2914 | while (len-- > 0) { |
2915 | fromstr = NEXTFROM; |
2916 | aint = SvIV(fromstr); |
1109a392 |
2917 | DO_BO_PACK(aint, i); |
a6ec74c1 |
2918 | sv_catpvn(cat, (char*)&aint, sizeof(int)); |
2919 | } |
2920 | break; |
7212898e |
2921 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
068bd2e7 |
2922 | case 'N' | TYPE_IS_SHRIEKING: |
7212898e |
2923 | #endif |
a6ec74c1 |
2924 | case 'N': |
2925 | while (len-- > 0) { |
2926 | fromstr = NEXTFROM; |
ef108786 |
2927 | au32 = SvUV(fromstr); |
a6ec74c1 |
2928 | #ifdef HAS_HTONL |
ef108786 |
2929 | au32 = PerlSock_htonl(au32); |
a6ec74c1 |
2930 | #endif |
ef108786 |
2931 | CAT32(cat, &au32); |
a6ec74c1 |
2932 | } |
2933 | break; |
7212898e |
2934 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
068bd2e7 |
2935 | case 'V' | TYPE_IS_SHRIEKING: |
7212898e |
2936 | #endif |
a6ec74c1 |
2937 | case 'V': |
2938 | while (len-- > 0) { |
2939 | fromstr = NEXTFROM; |
ef108786 |
2940 | au32 = SvUV(fromstr); |
a6ec74c1 |
2941 | #ifdef HAS_HTOVL |
ef108786 |
2942 | au32 = htovl(au32); |
a6ec74c1 |
2943 | #endif |
ef108786 |
2944 | CAT32(cat, &au32); |
a6ec74c1 |
2945 | } |
2946 | break; |
49704364 |
2947 | case 'L' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2948 | #if LONGSIZE != SIZE32 |
49704364 |
2949 | { |
a6ec74c1 |
2950 | while (len-- > 0) { |
2951 | fromstr = NEXTFROM; |
2952 | aulong = SvUV(fromstr); |
1109a392 |
2953 | DO_BO_PACK(aulong, l); |
a6ec74c1 |
2954 | sv_catpvn(cat, (char *)&aulong, sizeof(unsigned long)); |
2955 | } |
2956 | } |
49704364 |
2957 | break; |
2958 | #else |
2959 | /* Fall though! */ |
a6ec74c1 |
2960 | #endif |
49704364 |
2961 | case 'L': |
a6ec74c1 |
2962 | { |
2963 | while (len-- > 0) { |
2964 | fromstr = NEXTFROM; |
ef108786 |
2965 | au32 = SvUV(fromstr); |
2966 | DO_BO_PACK(au32, 32); |
2967 | CAT32(cat, &au32); |
a6ec74c1 |
2968 | } |
2969 | } |
2970 | break; |
49704364 |
2971 | case 'l' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2972 | #if LONGSIZE != SIZE32 |
49704364 |
2973 | { |
a6ec74c1 |
2974 | while (len-- > 0) { |
2975 | fromstr = NEXTFROM; |
2976 | along = SvIV(fromstr); |
1109a392 |
2977 | DO_BO_PACK(along, l); |
a6ec74c1 |
2978 | sv_catpvn(cat, (char *)&along, sizeof(long)); |
2979 | } |
2980 | } |
49704364 |
2981 | break; |
2982 | #else |
2983 | /* Fall though! */ |
a6ec74c1 |
2984 | #endif |
49704364 |
2985 | case 'l': |
2986 | while (len-- > 0) { |
2987 | fromstr = NEXTFROM; |
ef108786 |
2988 | ai32 = SvIV(fromstr); |
2989 | DO_BO_PACK(ai32, 32); |
2990 | CAT32(cat, &ai32); |
a6ec74c1 |
2991 | } |
2992 | break; |
2993 | #ifdef HAS_QUAD |
2994 | case 'Q': |
2995 | while (len-- > 0) { |
2996 | fromstr = NEXTFROM; |
2997 | auquad = (Uquad_t)SvUV(fromstr); |
1109a392 |
2998 | DO_BO_PACK(auquad, 64); |
a6ec74c1 |
2999 | sv_catpvn(cat, (char*)&auquad, sizeof(Uquad_t)); |
3000 | } |
3001 | break; |
3002 | case 'q': |
3003 | while (len-- > 0) { |
3004 | fromstr = NEXTFROM; |
3005 | aquad = (Quad_t)SvIV(fromstr); |
1109a392 |
3006 | DO_BO_PACK(aquad, 64); |
a6ec74c1 |
3007 | sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t)); |
3008 | } |
3009 | break; |
3010 | #endif |
3011 | case 'P': |
3012 | len = 1; /* assume SV is correct length */ |
49704364 |
3013 | /* Fall through! */ |
a6ec74c1 |
3014 | case 'p': |
3015 | while (len-- > 0) { |
3016 | fromstr = NEXTFROM; |
28a4f200 |
3017 | SvGETMAGIC(fromstr); |
3018 | if (!SvOK(fromstr)) aptr = NULL; |
a6ec74c1 |
3019 | else { |
3020 | STRLEN n_a; |
3021 | /* XXX better yet, could spirit away the string to |
3022 | * a safe spot and hang on to it until the result |
3023 | * of pack() (and all copies of the result) are |
3024 | * gone. |
3025 | */ |
3026 | if (ckWARN(WARN_PACK) && (SvTEMP(fromstr) |
3027 | || (SvPADTMP(fromstr) |
3028 | && !SvREADONLY(fromstr)))) |
3029 | { |
9014280d |
3030 | Perl_warner(aTHX_ packWARN(WARN_PACK), |
a6ec74c1 |
3031 | "Attempt to pack pointer to temporary value"); |
3032 | } |
3033 | if (SvPOK(fromstr) || SvNIOK(fromstr)) |
28a4f200 |
3034 | aptr = SvPV_flags(fromstr, n_a, 0); |
a6ec74c1 |
3035 | else |
28a4f200 |
3036 | aptr = SvPV_force_flags(fromstr, n_a, 0); |
a6ec74c1 |
3037 | } |
1109a392 |
3038 | DO_BO_PACK_P(aptr); |
a6ec74c1 |
3039 | sv_catpvn(cat, (char*)&aptr, sizeof(char*)); |
3040 | } |
3041 | break; |
3042 | case 'u': |
3043 | fromstr = NEXTFROM; |
3044 | aptr = SvPV(fromstr, fromlen); |
3045 | SvGROW(cat, fromlen * 4 / 3); |
19c9db5e |
3046 | if (len <= 2) |
a6ec74c1 |
3047 | len = 45; |
3048 | else |
3049 | len = len / 3 * 3; |
3050 | while (fromlen > 0) { |
3051 | I32 todo; |
3052 | |
eb160463 |
3053 | if ((I32)fromlen > len) |
a6ec74c1 |
3054 | todo = len; |
3055 | else |
3056 | todo = fromlen; |
3057 | doencodes(cat, aptr, todo); |
3058 | fromlen -= todo; |
3059 | aptr += todo; |
3060 | } |
3061 | break; |
3062 | } |
49704364 |
3063 | *symptr = lookahead; |
a6ec74c1 |
3064 | } |
49704364 |
3065 | return beglist; |
18529408 |
3066 | } |
3067 | #undef NEXTFROM |
3068 | |
3069 | |
3070 | PP(pp_pack) |
3071 | { |
3072 | dSP; dMARK; dORIGMARK; dTARGET; |
3073 | register SV *cat = TARG; |
3074 | STRLEN fromlen; |
3075 | register char *pat = SvPVx(*++MARK, fromlen); |
3076 | register char *patend = pat + fromlen; |
3077 | |
3078 | MARK++; |
3079 | sv_setpvn(cat, "", 0); |
3080 | |
7accc089 |
3081 | packlist(cat, pat, patend, MARK, SP + 1); |
18529408 |
3082 | |
a6ec74c1 |
3083 | SvSETMAGIC(cat); |
3084 | SP = ORIGMARK; |
3085 | PUSHs(cat); |
3086 | RETURN; |
3087 | } |
a6ec74c1 |
3088 | |
73cb7263 |
3089 | /* |
3090 | * Local variables: |
3091 | * c-indentation-style: bsd |
3092 | * c-basic-offset: 4 |
3093 | * indent-tabs-mode: t |
3094 | * End: |
3095 | * |
edf815fd |
3096 | * vim: shiftwidth=4: |
73cb7263 |
3097 | */ |