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 | |
34 | /* |
a6ec74c1 |
35 | * Offset for integer pack/unpack. |
36 | * |
37 | * On architectures where I16 and I32 aren't really 16 and 32 bits, |
38 | * which for now are all Crays, pack and unpack have to play games. |
39 | */ |
40 | |
41 | /* |
42 | * These values are required for portability of pack() output. |
43 | * If they're not right on your machine, then pack() and unpack() |
44 | * wouldn't work right anyway; you'll need to apply the Cray hack. |
45 | * (I'd like to check them with #if, but you can't use sizeof() in |
46 | * the preprocessor.) --??? |
47 | */ |
48 | /* |
49 | The appropriate SHORTSIZE, INTSIZE, LONGSIZE, and LONGLONGSIZE |
50 | defines are now in config.h. --Andy Dougherty April 1998 |
51 | */ |
52 | #define SIZE16 2 |
53 | #define SIZE32 4 |
54 | |
55 | /* CROSSCOMPILE and MULTIARCH are going to affect pp_pack() and pp_unpack(). |
56 | --jhi Feb 1999 */ |
57 | |
1109a392 |
58 | #if U16SIZE > SIZE16 || U32SIZE > SIZE32 |
59 | # if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678 /* little-endian */ |
a6ec74c1 |
60 | # define OFF16(p) (char*)(p) |
61 | # define OFF32(p) (char*)(p) |
62 | # else |
1109a392 |
63 | # if BYTEORDER == 0x4321 || BYTEORDER == 0x87654321 /* big-endian */ |
a6ec74c1 |
64 | # define OFF16(p) ((char*)(p) + (sizeof(U16) - SIZE16)) |
65 | # define OFF32(p) ((char*)(p) + (sizeof(U32) - SIZE32)) |
66 | # else |
67 | }}}} bad cray byte order |
68 | # endif |
69 | # endif |
70 | # define COPY16(s,p) (*(p) = 0, Copy(s, OFF16(p), SIZE16, char)) |
71 | # define COPY32(s,p) (*(p) = 0, Copy(s, OFF32(p), SIZE32, char)) |
72 | # define COPYNN(s,p,n) (*(p) = 0, Copy(s, (char *)(p), n, char)) |
73 | # define CAT16(sv,p) sv_catpvn(sv, OFF16(p), SIZE16) |
74 | # define CAT32(sv,p) sv_catpvn(sv, OFF32(p), SIZE32) |
75 | #else |
76 | # define COPY16(s,p) Copy(s, p, SIZE16, char) |
77 | # define COPY32(s,p) Copy(s, p, SIZE32, char) |
78 | # define COPYNN(s,p,n) Copy(s, (char *)(p), n, char) |
79 | # define CAT16(sv,p) sv_catpvn(sv, (char*)(p), SIZE16) |
80 | # define CAT32(sv,p) sv_catpvn(sv, (char*)(p), SIZE32) |
81 | #endif |
82 | |
49704364 |
83 | /* Avoid stack overflow due to pathological templates. 100 should be plenty. */ |
84 | #define MAX_SUB_TEMPLATE_LEVEL 100 |
85 | |
66c611c5 |
86 | /* flags (note that type modifiers can also be used as flags!) */ |
49704364 |
87 | #define FLAG_UNPACK_ONLY_ONE 0x10 |
88 | #define FLAG_UNPACK_DO_UTF8 0x08 |
89 | #define FLAG_SLASH 0x04 |
90 | #define FLAG_COMMA 0x02 |
91 | #define FLAG_PACK 0x01 |
92 | |
a6ec74c1 |
93 | STATIC SV * |
94 | S_mul128(pTHX_ SV *sv, U8 m) |
95 | { |
96 | STRLEN len; |
97 | char *s = SvPV(sv, len); |
98 | char *t; |
99 | U32 i = 0; |
100 | |
101 | if (!strnEQ(s, "0000", 4)) { /* need to grow sv */ |
102 | SV *tmpNew = newSVpvn("0000000000", 10); |
103 | |
104 | sv_catsv(tmpNew, sv); |
105 | SvREFCNT_dec(sv); /* free old sv */ |
106 | sv = tmpNew; |
107 | s = SvPV(sv, len); |
108 | } |
109 | t = s + len - 1; |
110 | while (!*t) /* trailing '\0'? */ |
111 | t--; |
112 | while (t > s) { |
113 | i = ((*t - '0') << 7) + m; |
eb160463 |
114 | *(t--) = '0' + (char)(i % 10); |
115 | m = (char)(i / 10); |
a6ec74c1 |
116 | } |
117 | return (sv); |
118 | } |
119 | |
120 | /* Explosives and implosives. */ |
121 | |
122 | #if 'I' == 73 && 'J' == 74 |
123 | /* On an ASCII/ISO kind of system */ |
124 | #define ISUUCHAR(ch) ((ch) >= ' ' && (ch) < 'a') |
125 | #else |
126 | /* |
127 | Some other sort of character set - use memchr() so we don't match |
128 | the null byte. |
129 | */ |
130 | #define ISUUCHAR(ch) (memchr(PL_uuemap, (ch), sizeof(PL_uuemap)-1) || (ch) == ' ') |
131 | #endif |
132 | |
66c611c5 |
133 | /* type modifiers */ |
62f95557 |
134 | #define TYPE_IS_SHRIEKING 0x100 |
1109a392 |
135 | #define TYPE_IS_BIG_ENDIAN 0x200 |
136 | #define TYPE_IS_LITTLE_ENDIAN 0x400 |
137 | #define TYPE_ENDIANNESS_MASK (TYPE_IS_BIG_ENDIAN|TYPE_IS_LITTLE_ENDIAN) |
66c611c5 |
138 | #define TYPE_ENDIANNESS(t) ((t) & TYPE_ENDIANNESS_MASK) |
1109a392 |
139 | #define TYPE_NO_ENDIANNESS(t) ((t) & ~TYPE_ENDIANNESS_MASK) |
66c611c5 |
140 | #define TYPE_MODIFIERS(t) ((t) & ~0xFF) |
1109a392 |
141 | #define TYPE_NO_MODIFIERS(t) ((t) & 0xFF) |
142 | |
66c611c5 |
143 | #define ENDIANNESS_ALLOWED_TYPES "sSiIlLqQjJfFdDpP(" |
144 | |
1109a392 |
145 | #define DO_BO_UNPACK(var, type) \ |
146 | STMT_START { \ |
66c611c5 |
147 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 |
148 | case TYPE_IS_BIG_ENDIAN: var = my_betoh ## type (var); break; \ |
149 | case TYPE_IS_LITTLE_ENDIAN: var = my_letoh ## type (var); break; \ |
150 | default: break; \ |
151 | } \ |
152 | } STMT_END |
153 | |
154 | #define DO_BO_PACK(var, type) \ |
155 | STMT_START { \ |
66c611c5 |
156 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 |
157 | case TYPE_IS_BIG_ENDIAN: var = my_htobe ## type (var); break; \ |
158 | case TYPE_IS_LITTLE_ENDIAN: var = my_htole ## type (var); break; \ |
159 | default: break; \ |
160 | } \ |
161 | } STMT_END |
162 | |
163 | #define DO_BO_UNPACK_PTR(var, type, pre_cast) \ |
164 | STMT_START { \ |
66c611c5 |
165 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 |
166 | case TYPE_IS_BIG_ENDIAN: \ |
167 | var = (void *) my_betoh ## type ((pre_cast) var); \ |
168 | break; \ |
169 | case TYPE_IS_LITTLE_ENDIAN: \ |
170 | var = (void *) my_letoh ## type ((pre_cast) var); \ |
171 | break; \ |
172 | default: \ |
173 | break; \ |
174 | } \ |
175 | } STMT_END |
176 | |
177 | #define DO_BO_PACK_PTR(var, type, pre_cast) \ |
178 | STMT_START { \ |
66c611c5 |
179 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 |
180 | case TYPE_IS_BIG_ENDIAN: \ |
181 | var = (void *) my_htobe ## type ((pre_cast) var); \ |
182 | break; \ |
183 | case TYPE_IS_LITTLE_ENDIAN: \ |
184 | var = (void *) my_htole ## type ((pre_cast) var); \ |
185 | break; \ |
186 | default: \ |
187 | break; \ |
188 | } \ |
189 | } STMT_END |
190 | |
191 | #define BO_CANT_DOIT(action, type) \ |
66c611c5 |
192 | STMT_START { \ |
193 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 |
194 | case TYPE_IS_BIG_ENDIAN: \ |
195 | Perl_croak(aTHX_ "Can't %s big-endian %ss on this " \ |
196 | "platform", #action, #type); \ |
197 | break; \ |
198 | case TYPE_IS_LITTLE_ENDIAN: \ |
199 | Perl_croak(aTHX_ "Can't %s little-endian %ss on this " \ |
200 | "platform", #action, #type); \ |
201 | break; \ |
202 | default: \ |
203 | break; \ |
204 | } \ |
205 | } STMT_END |
206 | |
207 | #if PTRSIZE == INTSIZE |
208 | # define DO_BO_UNPACK_P(var) DO_BO_UNPACK_PTR(var, i, int) |
209 | # define DO_BO_PACK_P(var) DO_BO_PACK_PTR(var, i, int) |
210 | #elif PTRSIZE == LONGSIZE |
211 | # define DO_BO_UNPACK_P(var) DO_BO_UNPACK_PTR(var, l, long) |
212 | # define DO_BO_PACK_P(var) DO_BO_PACK_PTR(var, l, long) |
213 | #else |
214 | # define DO_BO_UNPACK_P(var) BO_CANT_DOIT(unpack, pointer) |
215 | # define DO_BO_PACK_P(var) BO_CANT_DOIT(pack, pointer) |
216 | #endif |
217 | |
218 | #if defined(my_htolen) && defined(my_letohn) && \ |
219 | defined(my_htoben) && defined(my_betohn) |
220 | # define DO_BO_UNPACK_N(var, type) \ |
221 | STMT_START { \ |
66c611c5 |
222 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 |
223 | case TYPE_IS_BIG_ENDIAN: my_betohn(&var, sizeof(type)); break;\ |
224 | case TYPE_IS_LITTLE_ENDIAN: my_letohn(&var, sizeof(type)); break;\ |
225 | default: break; \ |
226 | } \ |
227 | } STMT_END |
228 | |
229 | # define DO_BO_PACK_N(var, type) \ |
230 | STMT_START { \ |
66c611c5 |
231 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 |
232 | case TYPE_IS_BIG_ENDIAN: my_htoben(&var, sizeof(type)); break;\ |
233 | case TYPE_IS_LITTLE_ENDIAN: my_htolen(&var, sizeof(type)); break;\ |
234 | default: break; \ |
235 | } \ |
236 | } STMT_END |
237 | #else |
238 | # define DO_BO_UNPACK_N(var, type) BO_CANT_DOIT(unpack, type) |
239 | # define DO_BO_PACK_N(var, type) BO_CANT_DOIT(pack, type) |
240 | #endif |
62f95557 |
241 | |
78d46eaa |
242 | #define PACK_SIZE_CANNOT_CSUM 0x80 |
243 | #define PACK_SIZE_CANNOT_ONLY_ONE 0x40 |
244 | #define PACK_SIZE_MASK 0x3F |
245 | |
246 | |
247 | struct packsize_t { |
58c0bd94 |
248 | const unsigned char *array; |
78d46eaa |
249 | int first; |
250 | int size; |
251 | }; |
252 | |
253 | #define PACK_SIZE_NORMAL 0 |
254 | #define PACK_SIZE_SHRIEKING 1 |
255 | |
256 | /* These tables are regenerated by genpacksizetables.pl (and then hand pasted |
257 | in). You're unlikely ever to need to regenerate them. */ |
258 | #if 'J'-'I' == 1 |
259 | /* ASCII */ |
260 | unsigned char size_normal[53] = { |
261 | /* C */ sizeof(unsigned char), |
80a13697 |
262 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
78d46eaa |
263 | /* D */ LONG_DOUBLESIZE, |
80a13697 |
264 | #else |
265 | 0, |
266 | #endif |
78d46eaa |
267 | 0, |
268 | /* F */ NVSIZE, |
269 | 0, 0, |
270 | /* I */ sizeof(unsigned int), |
271 | /* J */ UVSIZE, |
272 | 0, |
273 | /* L */ SIZE32, |
274 | 0, |
275 | /* N */ SIZE32, |
276 | 0, 0, |
80a13697 |
277 | #if defined(HAS_QUAD) |
78d46eaa |
278 | /* Q */ sizeof(Uquad_t), |
80a13697 |
279 | #else |
280 | 0, |
281 | #endif |
78d46eaa |
282 | 0, |
283 | /* S */ SIZE16, |
284 | 0, |
285 | /* U */ sizeof(char), |
286 | /* V */ SIZE32, |
287 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
288 | /* c */ sizeof(char), |
289 | /* d */ sizeof(double), |
290 | 0, |
291 | /* f */ sizeof(float), |
292 | 0, 0, |
293 | /* i */ sizeof(int), |
294 | /* j */ IVSIZE, |
295 | 0, |
296 | /* l */ SIZE32, |
297 | 0, |
298 | /* n */ SIZE16, |
299 | 0, |
300 | /* p */ sizeof(char *) | PACK_SIZE_CANNOT_ONLY_ONE | PACK_SIZE_CANNOT_CSUM, |
80a13697 |
301 | #if defined(HAS_QUAD) |
78d46eaa |
302 | /* q */ sizeof(Quad_t), |
80a13697 |
303 | #else |
304 | 0, |
305 | #endif |
78d46eaa |
306 | 0, |
307 | /* s */ SIZE16, |
308 | 0, 0, |
309 | /* v */ SIZE16, |
310 | /* w */ sizeof(char) | PACK_SIZE_CANNOT_CSUM |
311 | }; |
312 | unsigned char size_shrieking[46] = { |
313 | /* I */ sizeof(unsigned int), |
314 | 0, 0, |
315 | /* L */ sizeof(unsigned long), |
316 | 0, |
317 | /* N */ SIZE32, |
318 | 0, 0, 0, 0, |
319 | /* S */ sizeof(unsigned short), |
320 | 0, 0, |
321 | /* V */ SIZE32, |
322 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
323 | /* i */ sizeof(int), |
324 | 0, 0, |
325 | /* l */ sizeof(long), |
326 | 0, |
327 | /* n */ SIZE16, |
328 | 0, 0, 0, 0, |
329 | /* s */ sizeof(short), |
330 | 0, 0, |
331 | /* v */ SIZE16 |
332 | }; |
333 | struct packsize_t packsize[2] = { |
334 | {size_normal, 67, 53}, |
335 | {size_shrieking, 73, 46} |
336 | }; |
337 | #else |
338 | /* EBCDIC (or bust) */ |
339 | unsigned char size_normal[99] = { |
340 | /* c */ sizeof(char), |
341 | /* d */ sizeof(double), |
342 | 0, |
343 | /* f */ sizeof(float), |
344 | 0, 0, |
345 | /* i */ sizeof(int), |
346 | 0, 0, 0, 0, 0, 0, 0, |
347 | /* j */ IVSIZE, |
348 | 0, |
349 | /* l */ SIZE32, |
350 | 0, |
351 | /* n */ SIZE16, |
352 | 0, |
353 | /* p */ sizeof(char *) | PACK_SIZE_CANNOT_ONLY_ONE | PACK_SIZE_CANNOT_CSUM, |
80a13697 |
354 | #if defined(HAS_QUAD) |
78d46eaa |
355 | /* q */ sizeof(Quad_t), |
80a13697 |
356 | #else |
357 | 0, |
358 | #endif |
78d46eaa |
359 | 0, 0, 0, 0, 0, 0, 0, 0, 0, |
360 | /* s */ SIZE16, |
361 | 0, 0, |
362 | /* v */ SIZE16, |
363 | /* w */ sizeof(char) | PACK_SIZE_CANNOT_CSUM, |
364 | 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, |
365 | 0, 0, |
366 | /* C */ sizeof(unsigned char), |
80a13697 |
367 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
78d46eaa |
368 | /* D */ LONG_DOUBLESIZE, |
80a13697 |
369 | #else |
370 | 0, |
371 | #endif |
78d46eaa |
372 | 0, |
373 | /* F */ NVSIZE, |
374 | 0, 0, |
375 | /* I */ sizeof(unsigned int), |
376 | 0, 0, 0, 0, 0, 0, 0, |
377 | /* J */ UVSIZE, |
378 | 0, |
379 | /* L */ SIZE32, |
380 | 0, |
381 | /* N */ SIZE32, |
382 | 0, 0, |
80a13697 |
383 | #if defined(HAS_QUAD) |
78d46eaa |
384 | /* Q */ sizeof(Uquad_t), |
80a13697 |
385 | #else |
386 | 0, |
387 | #endif |
78d46eaa |
388 | 0, 0, 0, 0, 0, 0, 0, 0, 0, |
389 | /* S */ SIZE16, |
390 | 0, |
391 | /* U */ sizeof(char), |
392 | /* V */ SIZE32 |
393 | }; |
394 | unsigned char size_shrieking[93] = { |
395 | /* i */ sizeof(int), |
396 | 0, 0, 0, 0, 0, 0, 0, 0, 0, |
397 | /* l */ sizeof(long), |
398 | 0, |
399 | /* n */ SIZE16, |
400 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
401 | /* s */ sizeof(short), |
402 | 0, 0, |
403 | /* v */ SIZE16, |
404 | 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, |
405 | 0, 0, 0, 0, 0, 0, 0, 0, 0, |
406 | /* I */ sizeof(unsigned int), |
407 | 0, 0, 0, 0, 0, 0, 0, 0, 0, |
408 | /* L */ sizeof(unsigned long), |
409 | 0, |
410 | /* N */ SIZE32, |
411 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
412 | /* S */ sizeof(unsigned short), |
413 | 0, 0, |
414 | /* V */ SIZE32 |
415 | }; |
416 | struct packsize_t packsize[2] = { |
417 | {size_normal, 131, 99}, |
418 | {size_shrieking, 137, 93} |
419 | }; |
420 | #endif |
421 | |
422 | |
206947d2 |
423 | /* Returns the sizeof() struct described by pat */ |
028d1f6d |
424 | STATIC I32 |
49704364 |
425 | S_measure_struct(pTHX_ register tempsym_t* symptr) |
206947d2 |
426 | { |
49704364 |
427 | register I32 len = 0; |
206947d2 |
428 | register I32 total = 0; |
49704364 |
429 | int star; |
430 | |
206947d2 |
431 | register int size; |
432 | |
49704364 |
433 | while (next_symbol(symptr)) { |
80a13697 |
434 | int which = (symptr->code & TYPE_IS_SHRIEKING) |
435 | ? PACK_SIZE_SHRIEKING : PACK_SIZE_NORMAL; |
436 | int offset |
437 | = TYPE_NO_MODIFIERS(symptr->code) - packsize[which].first; |
206947d2 |
438 | |
49704364 |
439 | switch( symptr->howlen ){ |
440 | case e_no_len: |
441 | case e_number: |
442 | len = symptr->length; |
443 | break; |
444 | case e_star: |
445 | Perl_croak(aTHX_ "Within []-length '*' not allowed in %s", |
446 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
447 | break; |
448 | } |
449 | |
80a13697 |
450 | if ((offset >= 0) && (offset < packsize[which].size)) |
451 | size = packsize[which].array[offset] & PACK_SIZE_MASK; |
452 | else |
206947d2 |
453 | size = 0; |
78d46eaa |
454 | |
80a13697 |
455 | if (!size) { |
456 | /* endianness doesn't influence the size of a type */ |
457 | switch(TYPE_NO_ENDIANNESS(symptr->code)) { |
458 | default: |
459 | Perl_croak(aTHX_ "Invalid type '%c' in %s", |
460 | (int)TYPE_NO_MODIFIERS(symptr->code), |
461 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
462 | case '@': |
463 | case '/': |
464 | case 'U': /* XXXX Is it correct? */ |
465 | case 'w': |
466 | case 'u': |
467 | Perl_croak(aTHX_ "Within []-length '%c' not allowed in %s", |
468 | (int)symptr->code, |
469 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
470 | case '%': |
471 | size = 0; |
472 | break; |
473 | case '(': |
474 | { |
475 | tempsym_t savsym = *symptr; |
476 | symptr->patptr = savsym.grpbeg; |
477 | symptr->patend = savsym.grpend; |
478 | /* XXXX Theoretically, we need to measure many times at |
479 | different positions, since the subexpression may contain |
480 | alignment commands, but be not of aligned length. |
481 | Need to detect this and croak(). */ |
482 | size = measure_struct(symptr); |
483 | *symptr = savsym; |
484 | break; |
485 | } |
486 | case 'X' | TYPE_IS_SHRIEKING: |
487 | /* XXXX Is this useful? Then need to treat MEASURE_BACKWARDS. |
488 | */ |
489 | if (!len) /* Avoid division by 0 */ |
490 | len = 1; |
491 | len = total % len; /* Assumed: the start is aligned. */ |
492 | /* FALL THROUGH */ |
493 | case 'X': |
494 | size = -1; |
495 | if (total < len) |
496 | Perl_croak(aTHX_ "'X' outside of string in %s", |
497 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
498 | break; |
499 | case 'x' | TYPE_IS_SHRIEKING: |
500 | if (!len) /* Avoid division by 0 */ |
501 | len = 1; |
502 | star = total % len; /* Assumed: the start is aligned. */ |
503 | if (star) /* Other portable ways? */ |
504 | len = len - star; |
505 | else |
506 | len = 0; |
507 | /* FALL THROUGH */ |
508 | case 'x': |
509 | case 'A': |
510 | case 'Z': |
511 | case 'a': |
512 | case 'c': |
513 | case 'C': |
514 | size = 1; |
515 | break; |
516 | case 'B': |
517 | case 'b': |
518 | len = (len + 7)/8; |
519 | size = 1; |
520 | break; |
521 | case 'H': |
522 | case 'h': |
523 | len = (len + 1)/2; |
524 | size = 1; |
525 | break; |
78d46eaa |
526 | |
80a13697 |
527 | case 'P': |
528 | len = 1; |
529 | size = sizeof(char*); |
78d46eaa |
530 | break; |
531 | } |
206947d2 |
532 | } |
533 | total += len * size; |
534 | } |
535 | return total; |
536 | } |
537 | |
49704364 |
538 | |
539 | /* locate matching closing parenthesis or bracket |
540 | * returns char pointer to char after match, or NULL |
541 | */ |
542 | STATIC char * |
543 | S_group_end(pTHX_ register char *patptr, register char *patend, char ender) |
18529408 |
544 | { |
49704364 |
545 | while (patptr < patend) { |
546 | char c = *patptr++; |
547 | |
548 | if (isSPACE(c)) |
549 | continue; |
550 | else if (c == ender) |
551 | return patptr-1; |
552 | else if (c == '#') { |
553 | while (patptr < patend && *patptr != '\n') |
554 | patptr++; |
555 | continue; |
556 | } else if (c == '(') |
557 | patptr = group_end(patptr, patend, ')') + 1; |
558 | else if (c == '[') |
559 | patptr = group_end(patptr, patend, ']') + 1; |
18529408 |
560 | } |
49704364 |
561 | Perl_croak(aTHX_ "No group ending character '%c' found in template", |
562 | ender); |
563 | return 0; |
18529408 |
564 | } |
565 | |
49704364 |
566 | |
567 | /* Convert unsigned decimal number to binary. |
568 | * Expects a pointer to the first digit and address of length variable |
569 | * Advances char pointer to 1st non-digit char and returns number |
570 | */ |
18529408 |
571 | STATIC char * |
49704364 |
572 | S_get_num(pTHX_ register char *patptr, I32 *lenptr ) |
573 | { |
574 | I32 len = *patptr++ - '0'; |
575 | while (isDIGIT(*patptr)) { |
576 | if (len >= 0x7FFFFFFF/10) |
577 | Perl_croak(aTHX_ "pack/unpack repeat count overflow"); |
578 | len = (len * 10) + (*patptr++ - '0'); |
579 | } |
580 | *lenptr = len; |
581 | return patptr; |
582 | } |
583 | |
584 | /* The marvellous template parsing routine: Using state stored in *symptr, |
585 | * locates next template code and count |
586 | */ |
587 | STATIC bool |
588 | S_next_symbol(pTHX_ register tempsym_t* symptr ) |
18529408 |
589 | { |
49704364 |
590 | register char* patptr = symptr->patptr; |
591 | register char* patend = symptr->patend; |
592 | |
593 | symptr->flags &= ~FLAG_SLASH; |
594 | |
595 | while (patptr < patend) { |
596 | if (isSPACE(*patptr)) |
597 | patptr++; |
598 | else if (*patptr == '#') { |
599 | patptr++; |
600 | while (patptr < patend && *patptr != '\n') |
601 | patptr++; |
602 | if (patptr < patend) |
603 | patptr++; |
604 | } else { |
605 | /* We should have found a template code */ |
606 | I32 code = *patptr++ & 0xFF; |
66c611c5 |
607 | U32 inherited_modifiers = 0; |
49704364 |
608 | |
609 | if (code == ','){ /* grandfather in commas but with a warning */ |
610 | if (((symptr->flags & FLAG_COMMA) == 0) && ckWARN(WARN_UNPACK)){ |
611 | symptr->flags |= FLAG_COMMA; |
612 | Perl_warner(aTHX_ packWARN(WARN_UNPACK), |
613 | "Invalid type ',' in %s", |
614 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
615 | } |
616 | continue; |
617 | } |
618 | |
619 | /* for '(', skip to ')' */ |
620 | if (code == '(') { |
621 | if( isDIGIT(*patptr) || *patptr == '*' || *patptr == '[' ) |
622 | Perl_croak(aTHX_ "()-group starts with a count in %s", |
623 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
624 | symptr->grpbeg = patptr; |
625 | patptr = 1 + ( symptr->grpend = group_end(patptr, patend, ')') ); |
626 | if( symptr->level >= MAX_SUB_TEMPLATE_LEVEL ) |
627 | Perl_croak(aTHX_ "Too deeply nested ()-groups in %s", |
628 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
629 | } |
630 | |
66c611c5 |
631 | /* look for group modifiers to inherit */ |
632 | if (TYPE_ENDIANNESS(symptr->flags)) { |
633 | if (strchr(ENDIANNESS_ALLOWED_TYPES, TYPE_NO_MODIFIERS(code))) |
634 | inherited_modifiers |= TYPE_ENDIANNESS(symptr->flags); |
635 | } |
636 | |
1109a392 |
637 | /* look for modifiers */ |
638 | while (patptr < patend) { |
639 | const char *allowed; |
640 | I32 modifier = 0; |
641 | switch (*patptr) { |
642 | case '!': |
643 | modifier = TYPE_IS_SHRIEKING; |
644 | allowed = "sSiIlLxXnNvV"; |
645 | break; |
646 | case '>': |
647 | modifier = TYPE_IS_BIG_ENDIAN; |
66c611c5 |
648 | allowed = ENDIANNESS_ALLOWED_TYPES; |
1109a392 |
649 | break; |
650 | case '<': |
651 | modifier = TYPE_IS_LITTLE_ENDIAN; |
66c611c5 |
652 | allowed = ENDIANNESS_ALLOWED_TYPES; |
1109a392 |
653 | break; |
654 | default: |
655 | break; |
656 | } |
66c611c5 |
657 | |
1109a392 |
658 | if (modifier == 0) |
659 | break; |
66c611c5 |
660 | |
1109a392 |
661 | if (!strchr(allowed, TYPE_NO_MODIFIERS(code))) |
662 | Perl_croak(aTHX_ "'%c' allowed only after types %s in %s", *patptr, |
663 | allowed, symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
66c611c5 |
664 | |
665 | if (TYPE_ENDIANNESS(code | modifier) == TYPE_ENDIANNESS_MASK) |
1109a392 |
666 | Perl_croak(aTHX_ "Can't use both '<' and '>' after type '%c' in %s", |
667 | (int) TYPE_NO_MODIFIERS(code), |
668 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
66c611c5 |
669 | else if (TYPE_ENDIANNESS(code | modifier | inherited_modifiers) == |
670 | TYPE_ENDIANNESS_MASK) |
671 | Perl_croak(aTHX_ "Can't use '%c' in a group with different byte-order in %s", |
672 | *patptr, symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
673 | |
1109a392 |
674 | if (ckWARN(WARN_UNPACK)) { |
675 | if (code & modifier) |
676 | Perl_warner(aTHX_ packWARN(WARN_UNPACK), |
677 | "Duplicate modifier '%c' after '%c' in %s", |
678 | *patptr, (int) TYPE_NO_MODIFIERS(code), |
679 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
680 | } |
66c611c5 |
681 | |
1109a392 |
682 | code |= modifier; |
683 | patptr++; |
49704364 |
684 | } |
685 | |
66c611c5 |
686 | /* inherit modifiers */ |
687 | code |= inherited_modifiers; |
688 | |
49704364 |
689 | /* look for count and/or / */ |
690 | if (patptr < patend) { |
691 | if (isDIGIT(*patptr)) { |
692 | patptr = get_num( patptr, &symptr->length ); |
693 | symptr->howlen = e_number; |
694 | |
695 | } else if (*patptr == '*') { |
696 | patptr++; |
697 | symptr->howlen = e_star; |
698 | |
699 | } else if (*patptr == '[') { |
700 | char* lenptr = ++patptr; |
701 | symptr->howlen = e_number; |
702 | patptr = group_end( patptr, patend, ']' ) + 1; |
703 | /* what kind of [] is it? */ |
704 | if (isDIGIT(*lenptr)) { |
705 | lenptr = get_num( lenptr, &symptr->length ); |
706 | if( *lenptr != ']' ) |
707 | Perl_croak(aTHX_ "Malformed integer in [] in %s", |
708 | symptr->flags & FLAG_PACK ? "pack" : "unpack"); |
709 | } else { |
710 | tempsym_t savsym = *symptr; |
711 | symptr->patend = patptr-1; |
712 | symptr->patptr = lenptr; |
713 | savsym.length = measure_struct(symptr); |
714 | *symptr = savsym; |
715 | } |
716 | } else { |
717 | symptr->howlen = e_no_len; |
718 | symptr->length = 1; |
719 | } |
720 | |
721 | /* try to find / */ |
722 | while (patptr < patend) { |
723 | if (isSPACE(*patptr)) |
724 | patptr++; |
725 | else if (*patptr == '#') { |
726 | patptr++; |
727 | while (patptr < patend && *patptr != '\n') |
728 | patptr++; |
729 | if (patptr < patend) |
730 | patptr++; |
731 | } else { |
66c611c5 |
732 | if (*patptr == '/') { |
49704364 |
733 | symptr->flags |= FLAG_SLASH; |
734 | patptr++; |
66c611c5 |
735 | if (patptr < patend && |
736 | (isDIGIT(*patptr) || *patptr == '*' || *patptr == '[')) |
49704364 |
737 | Perl_croak(aTHX_ "'/' does not take a repeat count in %s", |
738 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
739 | } |
740 | break; |
741 | } |
18529408 |
742 | } |
49704364 |
743 | } else { |
744 | /* at end - no count, no / */ |
745 | symptr->howlen = e_no_len; |
746 | symptr->length = 1; |
747 | } |
748 | |
749 | symptr->code = code; |
750 | symptr->patptr = patptr; |
751 | return TRUE; |
18529408 |
752 | } |
49704364 |
753 | } |
754 | symptr->patptr = patptr; |
755 | return FALSE; |
18529408 |
756 | } |
757 | |
18529408 |
758 | /* |
759 | =for apidoc unpack_str |
760 | |
7accc089 |
761 | The engine implementing unpack() Perl function. Note: parameters strbeg, new_s |
762 | and ocnt are not used. This call should not be used, use unpackstring instead. |
18529408 |
763 | |
764 | =cut */ |
765 | |
766 | I32 |
767 | Perl_unpack_str(pTHX_ char *pat, register char *patend, register char *s, char *strbeg, char *strend, char **new_s, I32 ocnt, U32 flags) |
a6ec74c1 |
768 | { |
49704364 |
769 | tempsym_t sym = { 0 }; |
770 | sym.patptr = pat; |
771 | sym.patend = patend; |
772 | sym.flags = flags; |
773 | |
774 | return unpack_rec(&sym, s, s, strend, NULL ); |
775 | } |
776 | |
7accc089 |
777 | /* |
778 | =for apidoc unpackstring |
779 | |
608d3aed |
780 | The engine implementing unpack() Perl function. C<unpackstring> puts the |
781 | extracted list items on the stack and returns the number of elements. |
782 | Issue C<PUTBACK> before and C<SPAGAIN> after the call to this function. |
7accc089 |
783 | |
784 | =cut */ |
785 | |
786 | I32 |
787 | Perl_unpackstring(pTHX_ char *pat, register char *patend, register char *s, char *strend, U32 flags) |
788 | { |
789 | tempsym_t sym = { 0 }; |
790 | sym.patptr = pat; |
791 | sym.patend = patend; |
792 | sym.flags = flags; |
793 | |
794 | return unpack_rec(&sym, s, s, strend, NULL ); |
795 | } |
796 | |
49704364 |
797 | STATIC |
798 | I32 |
799 | S_unpack_rec(pTHX_ register tempsym_t* symptr, register char *s, char *strbeg, char *strend, char **new_s ) |
800 | { |
a6ec74c1 |
801 | dSP; |
a6ec74c1 |
802 | I32 datumtype; |
49704364 |
803 | register I32 len = 0; |
a6ec74c1 |
804 | register I32 bits = 0; |
805 | register char *str; |
18529408 |
806 | SV *sv; |
807 | I32 start_sp_offset = SP - PL_stack_base; |
49704364 |
808 | howlen_t howlen; |
a6ec74c1 |
809 | |
810 | /* These must not be in registers: */ |
ef108786 |
811 | I16 ai16; |
812 | U16 au16; |
813 | I32 ai32; |
814 | U32 au32; |
a6ec74c1 |
815 | #ifdef HAS_QUAD |
816 | Quad_t aquad; |
ef108786 |
817 | Uquad_t auquad; |
818 | #endif |
819 | #if SHORTSIZE != SIZE16 |
820 | short ashort; |
821 | unsigned short aushort; |
a6ec74c1 |
822 | #endif |
ef108786 |
823 | int aint; |
a6ec74c1 |
824 | unsigned int auint; |
ef108786 |
825 | long along; |
826 | #if LONGSIZE != SIZE32 |
827 | unsigned long aulong; |
a6ec74c1 |
828 | #endif |
829 | char *aptr; |
830 | float afloat; |
831 | double adouble; |
ef108786 |
832 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
833 | long double aldouble; |
834 | #endif |
835 | IV aiv; |
836 | UV auv; |
837 | NV anv; |
838 | |
a6ec74c1 |
839 | I32 checksum = 0; |
92d41999 |
840 | UV cuv = 0; |
a6ec74c1 |
841 | NV cdouble = 0.0; |
92d41999 |
842 | const int bits_in_uv = 8 * sizeof(cuv); |
49704364 |
843 | char* strrelbeg = s; |
844 | bool beyond = FALSE; |
845 | bool unpack_only_one = (symptr->flags & FLAG_UNPACK_ONLY_ONE) != 0; |
846 | |
49704364 |
847 | while (next_symbol(symptr)) { |
848 | datumtype = symptr->code; |
206947d2 |
849 | /* do first one only unless in list context |
850 | / is implemented by unpacking the count, then poping it from the |
851 | stack, so must check that we're not in the middle of a / */ |
49704364 |
852 | if ( unpack_only_one |
206947d2 |
853 | && (SP - PL_stack_base == start_sp_offset + 1) |
49704364 |
854 | && (datumtype != '/') ) /* XXX can this be omitted */ |
206947d2 |
855 | break; |
49704364 |
856 | |
857 | switch( howlen = symptr->howlen ){ |
858 | case e_no_len: |
859 | case e_number: |
860 | len = symptr->length; |
861 | break; |
862 | case e_star: |
863 | len = strend - strbeg; /* long enough */ |
864 | break; |
865 | } |
18529408 |
866 | |
a6ec74c1 |
867 | redo_switch: |
49704364 |
868 | beyond = s >= strend; |
78d46eaa |
869 | { |
870 | int which = (symptr->code & TYPE_IS_SHRIEKING) |
871 | ? PACK_SIZE_SHRIEKING : PACK_SIZE_NORMAL; |
872 | int offset = TYPE_NO_MODIFIERS(datumtype) - packsize[which].first; |
873 | |
874 | if (offset >= 0 && offset < packsize[which].size) { |
875 | /* Data about this template letter */ |
876 | unsigned char data = packsize[which].array[offset]; |
877 | |
878 | if (data) { |
879 | /* data nonzero means we can process this letter. */ |
880 | long size = data & PACK_SIZE_MASK; |
881 | long howmany = (strend - s) / size; |
882 | if (len > howmany) |
883 | len = howmany; |
884 | |
885 | if (!checksum || (data & PACK_SIZE_CANNOT_CSUM)) { |
886 | if (len && unpack_only_one && |
887 | !(data & PACK_SIZE_CANNOT_ONLY_ONE)) |
888 | len = 1; |
889 | EXTEND(SP, len); |
890 | EXTEND_MORTAL(len); |
891 | } |
892 | } |
893 | } |
894 | } |
1109a392 |
895 | switch(TYPE_NO_ENDIANNESS(datumtype)) { |
a6ec74c1 |
896 | default: |
1109a392 |
897 | Perl_croak(aTHX_ "Invalid type '%c' in unpack", (int)TYPE_NO_MODIFIERS(datumtype) ); |
49704364 |
898 | |
a6ec74c1 |
899 | case '%': |
49704364 |
900 | if (howlen == e_no_len) |
18529408 |
901 | len = 16; /* len is not specified */ |
a6ec74c1 |
902 | checksum = len; |
92d41999 |
903 | cuv = 0; |
a6ec74c1 |
904 | cdouble = 0; |
18529408 |
905 | continue; |
a6ec74c1 |
906 | break; |
18529408 |
907 | case '(': |
908 | { |
18529408 |
909 | char *ss = s; /* Move from register */ |
49704364 |
910 | tempsym_t savsym = *symptr; |
66c611c5 |
911 | U32 group_modifiers = TYPE_MODIFIERS(datumtype & ~symptr->flags); |
912 | symptr->flags |= group_modifiers; |
49704364 |
913 | symptr->patend = savsym.grpend; |
914 | symptr->level++; |
18529408 |
915 | PUTBACK; |
916 | while (len--) { |
49704364 |
917 | symptr->patptr = savsym.grpbeg; |
918 | unpack_rec(symptr, ss, strbeg, strend, &ss ); |
919 | if (ss == strend && savsym.howlen == e_star) |
920 | break; /* No way to continue */ |
18529408 |
921 | } |
922 | SPAGAIN; |
923 | s = ss; |
66c611c5 |
924 | symptr->flags &= ~group_modifiers; |
49704364 |
925 | savsym.flags = symptr->flags; |
926 | *symptr = savsym; |
18529408 |
927 | break; |
928 | } |
a6ec74c1 |
929 | case '@': |
49704364 |
930 | if (len > strend - strrelbeg) |
931 | Perl_croak(aTHX_ "'@' outside of string in unpack"); |
932 | s = strrelbeg + len; |
a6ec74c1 |
933 | break; |
62f95557 |
934 | case 'X' | TYPE_IS_SHRIEKING: |
935 | if (!len) /* Avoid division by 0 */ |
936 | len = 1; |
937 | len = (s - strbeg) % len; |
938 | /* FALL THROUGH */ |
a6ec74c1 |
939 | case 'X': |
940 | if (len > s - strbeg) |
49704364 |
941 | Perl_croak(aTHX_ "'X' outside of string in unpack" ); |
a6ec74c1 |
942 | s -= len; |
943 | break; |
62f95557 |
944 | case 'x' | TYPE_IS_SHRIEKING: |
945 | if (!len) /* Avoid division by 0 */ |
946 | len = 1; |
947 | aint = (s - strbeg) % len; |
948 | if (aint) /* Other portable ways? */ |
949 | len = len - aint; |
950 | else |
951 | len = 0; |
952 | /* FALL THROUGH */ |
a6ec74c1 |
953 | case 'x': |
954 | if (len > strend - s) |
49704364 |
955 | Perl_croak(aTHX_ "'x' outside of string in unpack"); |
a6ec74c1 |
956 | s += len; |
957 | break; |
958 | case '/': |
49704364 |
959 | Perl_croak(aTHX_ "'/' must follow a numeric type in unpack"); |
960 | break; |
a6ec74c1 |
961 | case 'A': |
962 | case 'Z': |
963 | case 'a': |
964 | if (len > strend - s) |
965 | len = strend - s; |
966 | if (checksum) |
967 | goto uchar_checksum; |
c4c5f44a |
968 | sv = newSVpvn(s, len); |
49704364 |
969 | if (len > 0 && (datumtype == 'A' || datumtype == 'Z')) { |
a6ec74c1 |
970 | aptr = s; /* borrow register */ |
971 | if (datumtype == 'Z') { /* 'Z' strips stuff after first null */ |
972 | s = SvPVX(sv); |
973 | while (*s) |
974 | s++; |
49704364 |
975 | if (howlen == e_star) /* exact for 'Z*' */ |
d50dd4e4 |
976 | len = s - SvPVX(sv) + 1; |
a6ec74c1 |
977 | } |
978 | else { /* 'A' strips both nulls and spaces */ |
979 | s = SvPVX(sv) + len - 1; |
980 | while (s >= SvPVX(sv) && (!*s || isSPACE(*s))) |
981 | s--; |
982 | *++s = '\0'; |
983 | } |
984 | SvCUR_set(sv, s - SvPVX(sv)); |
985 | s = aptr; /* unborrow register */ |
986 | } |
d50dd4e4 |
987 | s += len; |
a6ec74c1 |
988 | XPUSHs(sv_2mortal(sv)); |
989 | break; |
990 | case 'B': |
991 | case 'b': |
49704364 |
992 | if (howlen == e_star || len > (strend - s) * 8) |
a6ec74c1 |
993 | len = (strend - s) * 8; |
994 | if (checksum) { |
995 | if (!PL_bitcount) { |
996 | Newz(601, PL_bitcount, 256, char); |
997 | for (bits = 1; bits < 256; bits++) { |
998 | if (bits & 1) PL_bitcount[bits]++; |
999 | if (bits & 2) PL_bitcount[bits]++; |
1000 | if (bits & 4) PL_bitcount[bits]++; |
1001 | if (bits & 8) PL_bitcount[bits]++; |
1002 | if (bits & 16) PL_bitcount[bits]++; |
1003 | if (bits & 32) PL_bitcount[bits]++; |
1004 | if (bits & 64) PL_bitcount[bits]++; |
1005 | if (bits & 128) PL_bitcount[bits]++; |
1006 | } |
1007 | } |
1008 | while (len >= 8) { |
92d41999 |
1009 | cuv += PL_bitcount[*(unsigned char*)s++]; |
a6ec74c1 |
1010 | len -= 8; |
1011 | } |
1012 | if (len) { |
1013 | bits = *s; |
1014 | if (datumtype == 'b') { |
1015 | while (len-- > 0) { |
92d41999 |
1016 | if (bits & 1) cuv++; |
a6ec74c1 |
1017 | bits >>= 1; |
1018 | } |
1019 | } |
1020 | else { |
1021 | while (len-- > 0) { |
92d41999 |
1022 | if (bits & 128) cuv++; |
a6ec74c1 |
1023 | bits <<= 1; |
1024 | } |
1025 | } |
1026 | } |
1027 | break; |
1028 | } |
1029 | sv = NEWSV(35, len + 1); |
1030 | SvCUR_set(sv, len); |
1031 | SvPOK_on(sv); |
1032 | str = SvPVX(sv); |
1033 | if (datumtype == 'b') { |
1034 | aint = len; |
1035 | for (len = 0; len < aint; len++) { |
1036 | if (len & 7) /*SUPPRESS 595*/ |
1037 | bits >>= 1; |
1038 | else |
1039 | bits = *s++; |
1040 | *str++ = '0' + (bits & 1); |
1041 | } |
1042 | } |
1043 | else { |
1044 | aint = len; |
1045 | for (len = 0; len < aint; len++) { |
1046 | if (len & 7) |
1047 | bits <<= 1; |
1048 | else |
1049 | bits = *s++; |
1050 | *str++ = '0' + ((bits & 128) != 0); |
1051 | } |
1052 | } |
1053 | *str = '\0'; |
1054 | XPUSHs(sv_2mortal(sv)); |
1055 | break; |
1056 | case 'H': |
1057 | case 'h': |
49704364 |
1058 | if (howlen == e_star || len > (strend - s) * 2) |
a6ec74c1 |
1059 | len = (strend - s) * 2; |
1060 | sv = NEWSV(35, len + 1); |
1061 | SvCUR_set(sv, len); |
1062 | SvPOK_on(sv); |
1063 | str = SvPVX(sv); |
1064 | if (datumtype == 'h') { |
1065 | aint = len; |
1066 | for (len = 0; len < aint; len++) { |
1067 | if (len & 1) |
1068 | bits >>= 4; |
1069 | else |
1070 | bits = *s++; |
1071 | *str++ = PL_hexdigit[bits & 15]; |
1072 | } |
1073 | } |
1074 | else { |
1075 | aint = len; |
1076 | for (len = 0; len < aint; len++) { |
1077 | if (len & 1) |
1078 | bits <<= 4; |
1079 | else |
1080 | bits = *s++; |
1081 | *str++ = PL_hexdigit[(bits >> 4) & 15]; |
1082 | } |
1083 | } |
1084 | *str = '\0'; |
1085 | XPUSHs(sv_2mortal(sv)); |
1086 | break; |
1087 | case 'c': |
73cb7263 |
1088 | while (len-- > 0) { |
1089 | aint = *s++; |
1090 | if (aint >= 128) /* fake up signed chars */ |
1091 | aint -= 256; |
1092 | if (!checksum) { |
ac7f3b1b |
1093 | PUSHs(sv_2mortal(newSViv((IV)aint))); |
a6ec74c1 |
1094 | } |
73cb7263 |
1095 | else if (checksum > bits_in_uv) |
1096 | cdouble += (NV)aint; |
1097 | else |
1098 | cuv += aint; |
a6ec74c1 |
1099 | } |
1100 | break; |
1101 | case 'C': |
35bcd338 |
1102 | unpack_C: /* unpack U will jump here if not UTF-8 */ |
1103 | if (len == 0) { |
49704364 |
1104 | symptr->flags &= ~FLAG_UNPACK_DO_UTF8; |
35bcd338 |
1105 | break; |
1106 | } |
a6ec74c1 |
1107 | if (checksum) { |
1108 | uchar_checksum: |
1109 | while (len-- > 0) { |
1110 | auint = *s++ & 255; |
92d41999 |
1111 | cuv += auint; |
a6ec74c1 |
1112 | } |
1113 | } |
1114 | else { |
a6ec74c1 |
1115 | while (len-- > 0) { |
1116 | auint = *s++ & 255; |
ac7f3b1b |
1117 | PUSHs(sv_2mortal(newSViv((IV)auint))); |
a6ec74c1 |
1118 | } |
1119 | } |
1120 | break; |
1121 | case 'U': |
35bcd338 |
1122 | if (len == 0) { |
49704364 |
1123 | symptr->flags |= FLAG_UNPACK_DO_UTF8; |
35bcd338 |
1124 | break; |
1125 | } |
49704364 |
1126 | if ((symptr->flags & FLAG_UNPACK_DO_UTF8) == 0) |
35bcd338 |
1127 | goto unpack_C; |
73cb7263 |
1128 | while (len-- > 0 && s < strend) { |
1129 | STRLEN alen; |
1130 | auint = NATIVE_TO_UNI(utf8n_to_uvchr((U8*)s, strend - s, &alen, ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANYUV)); |
1131 | along = alen; |
1132 | s += along; |
1133 | if (!checksum) { |
ac7f3b1b |
1134 | PUSHs(sv_2mortal(newSVuv((UV)auint))); |
a6ec74c1 |
1135 | } |
73cb7263 |
1136 | else if (checksum > bits_in_uv) |
1137 | cdouble += (NV)auint; |
1138 | else |
1139 | cuv += auint; |
a6ec74c1 |
1140 | } |
1141 | break; |
49704364 |
1142 | case 's' | TYPE_IS_SHRIEKING: |
1143 | #if SHORTSIZE != SIZE16 |
73cb7263 |
1144 | while (len-- > 0) { |
1145 | COPYNN(s, &ashort, sizeof(short)); |
1146 | DO_BO_UNPACK(ashort, s); |
1147 | s += sizeof(short); |
1148 | if (!checksum) { |
ac7f3b1b |
1149 | PUSHs(sv_2mortal(newSViv((IV)ashort))); |
49704364 |
1150 | } |
73cb7263 |
1151 | else if (checksum > bits_in_uv) |
1152 | cdouble += (NV)ashort; |
1153 | else |
1154 | cuv += ashort; |
49704364 |
1155 | } |
1156 | break; |
1157 | #else |
1158 | /* Fallthrough! */ |
a6ec74c1 |
1159 | #endif |
49704364 |
1160 | case 's': |
73cb7263 |
1161 | while (len-- > 0) { |
1162 | COPY16(s, &ai16); |
1163 | DO_BO_UNPACK(ai16, 16); |
1109a392 |
1164 | #if U16SIZE > SIZE16 |
73cb7263 |
1165 | if (ai16 > 32767) |
1166 | ai16 -= 65536; |
a6ec74c1 |
1167 | #endif |
73cb7263 |
1168 | s += SIZE16; |
1169 | if (!checksum) { |
ac7f3b1b |
1170 | PUSHs(sv_2mortal(newSViv((IV)ai16))); |
a6ec74c1 |
1171 | } |
73cb7263 |
1172 | else if (checksum > bits_in_uv) |
1173 | cdouble += (NV)ai16; |
1174 | else |
1175 | cuv += ai16; |
a6ec74c1 |
1176 | } |
1177 | break; |
49704364 |
1178 | case 'S' | TYPE_IS_SHRIEKING: |
1179 | #if SHORTSIZE != SIZE16 |
73cb7263 |
1180 | while (len-- > 0) { |
1181 | COPYNN(s, &aushort, sizeof(unsigned short)); |
1182 | DO_BO_UNPACK(aushort, s); |
1183 | s += sizeof(unsigned short); |
1184 | if (!checksum) { |
ac7f3b1b |
1185 | PUSHs(sv_2mortal(newSViv((UV)aushort))); |
49704364 |
1186 | } |
73cb7263 |
1187 | else if (checksum > bits_in_uv) |
1188 | cdouble += (NV)aushort; |
1189 | else |
1190 | cuv += aushort; |
49704364 |
1191 | } |
1192 | break; |
1193 | #else |
1194 | /* Fallhrough! */ |
1195 | #endif |
a6ec74c1 |
1196 | case 'v': |
1197 | case 'n': |
1198 | case 'S': |
73cb7263 |
1199 | while (len-- > 0) { |
1200 | COPY16(s, &au16); |
1201 | DO_BO_UNPACK(au16, 16); |
1202 | s += SIZE16; |
a6ec74c1 |
1203 | #ifdef HAS_NTOHS |
73cb7263 |
1204 | if (datumtype == 'n') |
1205 | au16 = PerlSock_ntohs(au16); |
a6ec74c1 |
1206 | #endif |
1207 | #ifdef HAS_VTOHS |
73cb7263 |
1208 | if (datumtype == 'v') |
1209 | au16 = vtohs(au16); |
a6ec74c1 |
1210 | #endif |
73cb7263 |
1211 | if (!checksum) { |
ac7f3b1b |
1212 | PUSHs(sv_2mortal(newSViv((UV)au16))); |
a6ec74c1 |
1213 | } |
73cb7263 |
1214 | else if (checksum > bits_in_uv) |
1215 | cdouble += (NV)au16; |
1216 | else |
1217 | cuv += au16; |
a6ec74c1 |
1218 | } |
1219 | break; |
068bd2e7 |
1220 | case 'v' | TYPE_IS_SHRIEKING: |
1221 | case 'n' | TYPE_IS_SHRIEKING: |
73cb7263 |
1222 | while (len-- > 0) { |
1223 | COPY16(s, &ai16); |
1224 | s += SIZE16; |
068bd2e7 |
1225 | #ifdef HAS_NTOHS |
73cb7263 |
1226 | if (datumtype == ('n' | TYPE_IS_SHRIEKING)) |
1227 | ai16 = (I16)PerlSock_ntohs((U16)ai16); |
068bd2e7 |
1228 | #endif |
1229 | #ifdef HAS_VTOHS |
73cb7263 |
1230 | if (datumtype == ('v' | TYPE_IS_SHRIEKING)) |
1231 | ai16 = (I16)vtohs((U16)ai16); |
068bd2e7 |
1232 | #endif |
73cb7263 |
1233 | if (!checksum) { |
ac7f3b1b |
1234 | PUSHs(sv_2mortal(newSViv((IV)ai16))); |
068bd2e7 |
1235 | } |
73cb7263 |
1236 | else if (checksum > bits_in_uv) |
1237 | cdouble += (NV)ai16; |
1238 | else |
1239 | cuv += ai16; |
068bd2e7 |
1240 | } |
1241 | break; |
a6ec74c1 |
1242 | case 'i': |
49704364 |
1243 | case 'i' | TYPE_IS_SHRIEKING: |
73cb7263 |
1244 | while (len-- > 0) { |
1245 | Copy(s, &aint, 1, int); |
1246 | DO_BO_UNPACK(aint, i); |
1247 | s += sizeof(int); |
1248 | if (!checksum) { |
ac7f3b1b |
1249 | PUSHs(sv_2mortal(newSViv((IV)aint))); |
a6ec74c1 |
1250 | } |
73cb7263 |
1251 | else if (checksum > bits_in_uv) |
1252 | cdouble += (NV)aint; |
1253 | else |
1254 | cuv += aint; |
a6ec74c1 |
1255 | } |
1256 | break; |
1257 | case 'I': |
49704364 |
1258 | case 'I' | TYPE_IS_SHRIEKING: |
73cb7263 |
1259 | while (len-- > 0) { |
1260 | Copy(s, &auint, 1, unsigned int); |
1261 | DO_BO_UNPACK(auint, i); |
1262 | s += sizeof(unsigned int); |
1263 | if (!checksum) { |
ac7f3b1b |
1264 | PUSHs(sv_2mortal(newSVuv((UV)auint))); |
a6ec74c1 |
1265 | } |
73cb7263 |
1266 | else if (checksum > bits_in_uv) |
1267 | cdouble += (NV)auint; |
1268 | else |
1269 | cuv += auint; |
a6ec74c1 |
1270 | } |
1271 | break; |
92d41999 |
1272 | case 'j': |
73cb7263 |
1273 | while (len-- > 0) { |
1274 | Copy(s, &aiv, 1, IV); |
1109a392 |
1275 | #if IVSIZE == INTSIZE |
73cb7263 |
1276 | DO_BO_UNPACK(aiv, i); |
1109a392 |
1277 | #elif IVSIZE == LONGSIZE |
73cb7263 |
1278 | DO_BO_UNPACK(aiv, l); |
1109a392 |
1279 | #elif defined(HAS_QUAD) && IVSIZE == U64SIZE |
73cb7263 |
1280 | DO_BO_UNPACK(aiv, 64); |
1109a392 |
1281 | #endif |
73cb7263 |
1282 | s += IVSIZE; |
1283 | if (!checksum) { |
ac7f3b1b |
1284 | PUSHs(sv_2mortal(newSViv(aiv))); |
92d41999 |
1285 | } |
73cb7263 |
1286 | else if (checksum > bits_in_uv) |
1287 | cdouble += (NV)aiv; |
1288 | else |
1289 | cuv += aiv; |
92d41999 |
1290 | } |
1291 | break; |
1292 | case 'J': |
73cb7263 |
1293 | while (len-- > 0) { |
1294 | Copy(s, &auv, 1, UV); |
1109a392 |
1295 | #if UVSIZE == INTSIZE |
73cb7263 |
1296 | DO_BO_UNPACK(auv, i); |
1109a392 |
1297 | #elif UVSIZE == LONGSIZE |
73cb7263 |
1298 | DO_BO_UNPACK(auv, l); |
1109a392 |
1299 | #elif defined(HAS_QUAD) && UVSIZE == U64SIZE |
73cb7263 |
1300 | DO_BO_UNPACK(auv, 64); |
1109a392 |
1301 | #endif |
73cb7263 |
1302 | s += UVSIZE; |
1303 | if (!checksum) { |
ac7f3b1b |
1304 | PUSHs(sv_2mortal(newSVuv(auv))); |
92d41999 |
1305 | } |
73cb7263 |
1306 | else if (checksum > bits_in_uv) |
1307 | cdouble += (NV)auv; |
1308 | else |
1309 | cuv += auv; |
92d41999 |
1310 | } |
1311 | break; |
49704364 |
1312 | case 'l' | TYPE_IS_SHRIEKING: |
1313 | #if LONGSIZE != SIZE32 |
73cb7263 |
1314 | while (len-- > 0) { |
1315 | COPYNN(s, &along, sizeof(long)); |
1316 | DO_BO_UNPACK(along, l); |
1317 | s += sizeof(long); |
1318 | if (!checksum) { |
ac7f3b1b |
1319 | PUSHs(sv_2mortal(newSViv((IV)along))); |
49704364 |
1320 | } |
73cb7263 |
1321 | else if (checksum > bits_in_uv) |
1322 | cdouble += (NV)along; |
1323 | else |
1324 | cuv += along; |
49704364 |
1325 | } |
1326 | break; |
1327 | #else |
1328 | /* Fallthrough! */ |
a6ec74c1 |
1329 | #endif |
49704364 |
1330 | case 'l': |
73cb7263 |
1331 | while (len-- > 0) { |
1332 | COPY32(s, &ai32); |
1333 | DO_BO_UNPACK(ai32, 32); |
25a9bd2a |
1334 | #if U32SIZE > SIZE32 |
73cb7263 |
1335 | if (ai32 > 2147483647) |
1336 | ai32 -= 4294967296; |
a6ec74c1 |
1337 | #endif |
73cb7263 |
1338 | s += SIZE32; |
1339 | if (!checksum) { |
ac7f3b1b |
1340 | PUSHs(sv_2mortal(newSViv((IV)ai32))); |
a6ec74c1 |
1341 | } |
73cb7263 |
1342 | else if (checksum > bits_in_uv) |
1343 | cdouble += (NV)ai32; |
1344 | else |
1345 | cuv += ai32; |
a6ec74c1 |
1346 | } |
1347 | break; |
49704364 |
1348 | case 'L' | TYPE_IS_SHRIEKING: |
1349 | #if LONGSIZE != SIZE32 |
73cb7263 |
1350 | while (len-- > 0) { |
1351 | COPYNN(s, &aulong, sizeof(unsigned long)); |
1352 | DO_BO_UNPACK(aulong, l); |
1353 | s += sizeof(unsigned long); |
1354 | if (!checksum) { |
ac7f3b1b |
1355 | PUSHs(sv_2mortal(newSVuv((UV)aulong))); |
49704364 |
1356 | } |
73cb7263 |
1357 | else if (checksum > bits_in_uv) |
1358 | cdouble += (NV)aulong; |
1359 | else |
1360 | cuv += aulong; |
49704364 |
1361 | } |
1362 | break; |
1363 | #else |
1364 | /* Fall through! */ |
1365 | #endif |
a6ec74c1 |
1366 | case 'V': |
1367 | case 'N': |
1368 | case 'L': |
73cb7263 |
1369 | while (len-- > 0) { |
1370 | COPY32(s, &au32); |
1371 | DO_BO_UNPACK(au32, 32); |
1372 | s += SIZE32; |
a6ec74c1 |
1373 | #ifdef HAS_NTOHL |
73cb7263 |
1374 | if (datumtype == 'N') |
1375 | au32 = PerlSock_ntohl(au32); |
a6ec74c1 |
1376 | #endif |
1377 | #ifdef HAS_VTOHL |
73cb7263 |
1378 | if (datumtype == 'V') |
1379 | au32 = vtohl(au32); |
a6ec74c1 |
1380 | #endif |
73cb7263 |
1381 | if (!checksum) { |
ac7f3b1b |
1382 | PUSHs(sv_2mortal(newSVuv((UV)au32))); |
73cb7263 |
1383 | } |
1384 | else if (checksum > bits_in_uv) |
1385 | cdouble += (NV)au32; |
1386 | else |
1387 | cuv += au32; |
a6ec74c1 |
1388 | } |
1389 | break; |
068bd2e7 |
1390 | case 'V' | TYPE_IS_SHRIEKING: |
1391 | case 'N' | TYPE_IS_SHRIEKING: |
73cb7263 |
1392 | while (len-- > 0) { |
1393 | COPY32(s, &ai32); |
1394 | s += SIZE32; |
068bd2e7 |
1395 | #ifdef HAS_NTOHL |
73cb7263 |
1396 | if (datumtype == ('N' | TYPE_IS_SHRIEKING)) |
1397 | ai32 = (I32)PerlSock_ntohl((U32)ai32); |
068bd2e7 |
1398 | #endif |
1399 | #ifdef HAS_VTOHL |
73cb7263 |
1400 | if (datumtype == ('V' | TYPE_IS_SHRIEKING)) |
1401 | ai32 = (I32)vtohl((U32)ai32); |
068bd2e7 |
1402 | #endif |
73cb7263 |
1403 | if (!checksum) { |
ac7f3b1b |
1404 | PUSHs(sv_2mortal(newSViv((IV)ai32))); |
068bd2e7 |
1405 | } |
73cb7263 |
1406 | else if (checksum > bits_in_uv) |
1407 | cdouble += (NV)ai32; |
1408 | else |
1409 | cuv += ai32; |
068bd2e7 |
1410 | } |
1411 | break; |
a6ec74c1 |
1412 | case 'p': |
a6ec74c1 |
1413 | while (len-- > 0) { |
5512a2f9 |
1414 | assert (sizeof(char*) <= strend - s); |
1415 | Copy(s, &aptr, 1, char*); |
1416 | DO_BO_UNPACK_P(aptr); |
1417 | s += sizeof(char*); |
c4c5f44a |
1418 | /* newSVpv generates undef if aptr is NULL */ |
1419 | PUSHs(sv_2mortal(newSVpv(aptr, 0))); |
a6ec74c1 |
1420 | } |
1421 | break; |
1422 | case 'w': |
a6ec74c1 |
1423 | { |
1424 | UV auv = 0; |
1425 | U32 bytes = 0; |
1426 | |
1427 | while ((len > 0) && (s < strend)) { |
1428 | auv = (auv << 7) | (*s & 0x7f); |
1429 | /* UTF8_IS_XXXXX not right here - using constant 0x80 */ |
1430 | if ((U8)(*s++) < 0x80) { |
1431 | bytes = 0; |
ac7f3b1b |
1432 | PUSHs(sv_2mortal(newSVuv(auv))); |
a6ec74c1 |
1433 | len--; |
1434 | auv = 0; |
1435 | } |
1436 | else if (++bytes >= sizeof(UV)) { /* promote to string */ |
1437 | char *t; |
1438 | STRLEN n_a; |
1439 | |
1440 | sv = Perl_newSVpvf(aTHX_ "%.*"UVf, (int)TYPE_DIGITS(UV), auv); |
1441 | while (s < strend) { |
eb160463 |
1442 | sv = mul128(sv, (U8)(*s & 0x7f)); |
a6ec74c1 |
1443 | if (!(*s++ & 0x80)) { |
1444 | bytes = 0; |
1445 | break; |
1446 | } |
1447 | } |
1448 | t = SvPV(sv, n_a); |
1449 | while (*t == '0') |
1450 | t++; |
1451 | sv_chop(sv, t); |
1452 | PUSHs(sv_2mortal(sv)); |
1453 | len--; |
1454 | auv = 0; |
1455 | } |
1456 | } |
1457 | if ((s >= strend) && bytes) |
49704364 |
1458 | Perl_croak(aTHX_ "Unterminated compressed integer in unpack"); |
a6ec74c1 |
1459 | } |
1460 | break; |
1461 | case 'P': |
49704364 |
1462 | if (symptr->howlen == e_star) |
1463 | Perl_croak(aTHX_ "'P' must have an explicit size in unpack"); |
a6ec74c1 |
1464 | EXTEND(SP, 1); |
1465 | if (sizeof(char*) > strend - s) |
1466 | break; |
1467 | else { |
1468 | Copy(s, &aptr, 1, char*); |
1109a392 |
1469 | DO_BO_UNPACK_P(aptr); |
a6ec74c1 |
1470 | s += sizeof(char*); |
1471 | } |
c4c5f44a |
1472 | /* newSVpvn generates undef if aptr is NULL */ |
1473 | PUSHs(sv_2mortal(newSVpvn(aptr, len))); |
a6ec74c1 |
1474 | break; |
1475 | #ifdef HAS_QUAD |
1476 | case 'q': |
73cb7263 |
1477 | while (len-- > 0) { |
c75bde89 |
1478 | assert (s + sizeof(Quad_t) <= strend); |
1479 | Copy(s, &aquad, 1, Quad_t); |
1480 | DO_BO_UNPACK(aquad, 64); |
1481 | s += sizeof(Quad_t); |
73cb7263 |
1482 | if (!checksum) { |
ac7f3b1b |
1483 | PUSHs(sv_2mortal((aquad >= IV_MIN && aquad <= IV_MAX) ? |
1484 | newSViv((IV)aquad) : newSVnv((NV)aquad))); |
fa8ec7c1 |
1485 | } |
73cb7263 |
1486 | else if (checksum > bits_in_uv) |
1487 | cdouble += (NV)aquad; |
1488 | else |
1489 | cuv += aquad; |
1490 | } |
a6ec74c1 |
1491 | break; |
1492 | case 'Q': |
73cb7263 |
1493 | while (len-- > 0) { |
c75bde89 |
1494 | assert (s + sizeof(Uquad_t) <= strend); |
1495 | Copy(s, &auquad, 1, Uquad_t); |
1496 | DO_BO_UNPACK(auquad, 64); |
1497 | s += sizeof(Uquad_t); |
73cb7263 |
1498 | if (!checksum) { |
ac7f3b1b |
1499 | PUSHs(sv_2mortal((auquad <= UV_MAX) ? |
1500 | newSVuv((UV)auquad) : newSVnv((NV)auquad))); |
a6ec74c1 |
1501 | } |
73cb7263 |
1502 | else if (checksum > bits_in_uv) |
1503 | cdouble += (NV)auquad; |
1504 | else |
1505 | cuv += auquad; |
a6ec74c1 |
1506 | } |
1507 | break; |
1508 | #endif |
1509 | /* float and double added gnb@melba.bby.oz.au 22/11/89 */ |
1510 | case 'f': |
73cb7263 |
1511 | while (len-- > 0) { |
1512 | Copy(s, &afloat, 1, float); |
1513 | DO_BO_UNPACK_N(afloat, float); |
1514 | s += sizeof(float); |
1515 | if (!checksum) { |
ac7f3b1b |
1516 | PUSHs(sv_2mortal(newSVnv((NV)afloat))); |
a6ec74c1 |
1517 | } |
73cb7263 |
1518 | else { |
1519 | cdouble += afloat; |
1520 | } |
a6ec74c1 |
1521 | } |
1522 | break; |
1523 | case 'd': |
73cb7263 |
1524 | while (len-- > 0) { |
1525 | Copy(s, &adouble, 1, double); |
1526 | DO_BO_UNPACK_N(adouble, double); |
1527 | s += sizeof(double); |
1528 | if (!checksum) { |
ac7f3b1b |
1529 | PUSHs(sv_2mortal(newSVnv((NV)adouble))); |
a6ec74c1 |
1530 | } |
73cb7263 |
1531 | else { |
1532 | cdouble += adouble; |
1533 | } |
a6ec74c1 |
1534 | } |
1535 | break; |
92d41999 |
1536 | case 'F': |
73cb7263 |
1537 | while (len-- > 0) { |
1538 | Copy(s, &anv, 1, NV); |
1539 | DO_BO_UNPACK_N(anv, NV); |
1540 | s += NVSIZE; |
1541 | if (!checksum) { |
ac7f3b1b |
1542 | PUSHs(sv_2mortal(newSVnv(anv))); |
92d41999 |
1543 | } |
73cb7263 |
1544 | else { |
1545 | cdouble += anv; |
1546 | } |
92d41999 |
1547 | } |
1548 | break; |
1549 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
1550 | case 'D': |
73cb7263 |
1551 | while (len-- > 0) { |
1552 | Copy(s, &aldouble, 1, long double); |
1553 | DO_BO_UNPACK_N(aldouble, long double); |
1554 | s += LONG_DOUBLESIZE; |
1555 | if (!checksum) { |
ac7f3b1b |
1556 | PUSHs(sv_2mortal(newSVnv((NV)aldouble))); |
92d41999 |
1557 | } |
73cb7263 |
1558 | else {cdouble += aldouble; |
1559 | } |
92d41999 |
1560 | } |
1561 | break; |
1562 | #endif |
a6ec74c1 |
1563 | case 'u': |
1564 | /* MKS: |
1565 | * Initialise the decode mapping. By using a table driven |
1566 | * algorithm, the code will be character-set independent |
1567 | * (and just as fast as doing character arithmetic) |
1568 | */ |
1569 | if (PL_uudmap['M'] == 0) { |
1570 | int i; |
1571 | |
1572 | for (i = 0; i < sizeof(PL_uuemap); i += 1) |
1573 | PL_uudmap[(U8)PL_uuemap[i]] = i; |
1574 | /* |
1575 | * Because ' ' and '`' map to the same value, |
1576 | * we need to decode them both the same. |
1577 | */ |
1578 | PL_uudmap[' '] = 0; |
1579 | } |
1580 | |
1581 | along = (strend - s) * 3 / 4; |
1582 | sv = NEWSV(42, along); |
1583 | if (along) |
1584 | SvPOK_on(sv); |
1585 | while (s < strend && *s > ' ' && ISUUCHAR(*s)) { |
1586 | I32 a, b, c, d; |
1587 | char hunk[4]; |
1588 | |
1589 | hunk[3] = '\0'; |
1590 | len = PL_uudmap[*(U8*)s++] & 077; |
1591 | while (len > 0) { |
1592 | if (s < strend && ISUUCHAR(*s)) |
1593 | a = PL_uudmap[*(U8*)s++] & 077; |
1594 | else |
1595 | a = 0; |
1596 | if (s < strend && ISUUCHAR(*s)) |
1597 | b = PL_uudmap[*(U8*)s++] & 077; |
1598 | else |
1599 | b = 0; |
1600 | if (s < strend && ISUUCHAR(*s)) |
1601 | c = PL_uudmap[*(U8*)s++] & 077; |
1602 | else |
1603 | c = 0; |
1604 | if (s < strend && ISUUCHAR(*s)) |
1605 | d = PL_uudmap[*(U8*)s++] & 077; |
1606 | else |
1607 | d = 0; |
eb160463 |
1608 | hunk[0] = (char)((a << 2) | (b >> 4)); |
1609 | hunk[1] = (char)((b << 4) | (c >> 2)); |
1610 | hunk[2] = (char)((c << 6) | d); |
a6ec74c1 |
1611 | sv_catpvn(sv, hunk, (len > 3) ? 3 : len); |
1612 | len -= 3; |
1613 | } |
1614 | if (*s == '\n') |
1615 | s++; |
92aa5668 |
1616 | else /* possible checksum byte */ |
1617 | if (s + 1 < strend && s[1] == '\n') |
1618 | s += 2; |
a6ec74c1 |
1619 | } |
1620 | XPUSHs(sv_2mortal(sv)); |
1621 | break; |
1622 | } |
49704364 |
1623 | |
a6ec74c1 |
1624 | if (checksum) { |
1109a392 |
1625 | if (strchr("fFdD", TYPE_NO_MODIFIERS(datumtype)) || |
92d41999 |
1626 | (checksum > bits_in_uv && |
1109a392 |
1627 | strchr("csSiIlLnNUvVqQjJ", TYPE_NO_MODIFIERS(datumtype))) ) { |
a6ec74c1 |
1628 | NV trouble; |
1629 | |
fa8ec7c1 |
1630 | adouble = (NV) (1 << (checksum & 15)); |
a6ec74c1 |
1631 | while (checksum >= 16) { |
1632 | checksum -= 16; |
1633 | adouble *= 65536.0; |
1634 | } |
a6ec74c1 |
1635 | while (cdouble < 0.0) |
1636 | cdouble += adouble; |
1637 | cdouble = Perl_modf(cdouble / adouble, &trouble) * adouble; |
c4c5f44a |
1638 | sv = newSVnv(cdouble); |
a6ec74c1 |
1639 | } |
1640 | else { |
fa8ec7c1 |
1641 | if (checksum < bits_in_uv) { |
1642 | UV mask = ((UV)1 << checksum) - 1; |
92d41999 |
1643 | cuv &= mask; |
a6ec74c1 |
1644 | } |
c4c5f44a |
1645 | sv = newSVuv(cuv); |
a6ec74c1 |
1646 | } |
1647 | XPUSHs(sv_2mortal(sv)); |
1648 | checksum = 0; |
1649 | } |
49704364 |
1650 | |
1651 | if (symptr->flags & FLAG_SLASH){ |
1652 | if (SP - PL_stack_base - start_sp_offset <= 0) |
1653 | Perl_croak(aTHX_ "'/' must follow a numeric type in unpack"); |
1654 | if( next_symbol(symptr) ){ |
1655 | if( symptr->howlen == e_number ) |
1656 | Perl_croak(aTHX_ "Count after length/code in unpack" ); |
1657 | if( beyond ){ |
1658 | /* ...end of char buffer then no decent length available */ |
1659 | Perl_croak(aTHX_ "length/code after end of string in unpack" ); |
1660 | } else { |
1661 | /* take top of stack (hope it's numeric) */ |
1662 | len = POPi; |
1663 | if( len < 0 ) |
1664 | Perl_croak(aTHX_ "Negative '/' count in unpack" ); |
1665 | } |
1666 | } else { |
1667 | Perl_croak(aTHX_ "Code missing after '/' in unpack" ); |
1668 | } |
1669 | datumtype = symptr->code; |
1670 | goto redo_switch; |
1671 | } |
a6ec74c1 |
1672 | } |
49704364 |
1673 | |
18529408 |
1674 | if (new_s) |
1675 | *new_s = s; |
1676 | PUTBACK; |
1677 | return SP - PL_stack_base - start_sp_offset; |
1678 | } |
1679 | |
1680 | PP(pp_unpack) |
1681 | { |
1682 | dSP; |
bab9c0ac |
1683 | dPOPPOPssrl; |
18529408 |
1684 | I32 gimme = GIMME_V; |
1685 | STRLEN llen; |
1686 | STRLEN rlen; |
1687 | register char *pat = SvPV(left, llen); |
1688 | #ifdef PACKED_IS_OCTETS |
1689 | /* Packed side is assumed to be octets - so force downgrade if it |
1690 | has been UTF-8 encoded by accident |
1691 | */ |
1692 | register char *s = SvPVbyte(right, rlen); |
1693 | #else |
1694 | register char *s = SvPV(right, rlen); |
1695 | #endif |
1696 | char *strend = s + rlen; |
1697 | register char *patend = pat + llen; |
1698 | register I32 cnt; |
1699 | |
1700 | PUTBACK; |
7accc089 |
1701 | cnt = unpackstring(pat, patend, s, strend, |
49704364 |
1702 | ((gimme == G_SCALAR) ? FLAG_UNPACK_ONLY_ONE : 0) |
1703 | | (DO_UTF8(right) ? FLAG_UNPACK_DO_UTF8 : 0)); |
1704 | |
18529408 |
1705 | SPAGAIN; |
1706 | if ( !cnt && gimme == G_SCALAR ) |
1707 | PUSHs(&PL_sv_undef); |
a6ec74c1 |
1708 | RETURN; |
1709 | } |
1710 | |
1711 | STATIC void |
1712 | S_doencodes(pTHX_ register SV *sv, register char *s, register I32 len) |
1713 | { |
1714 | char hunk[5]; |
1715 | |
1716 | *hunk = PL_uuemap[len]; |
1717 | sv_catpvn(sv, hunk, 1); |
1718 | hunk[4] = '\0'; |
1719 | while (len > 2) { |
1720 | hunk[0] = PL_uuemap[(077 & (*s >> 2))]; |
1721 | hunk[1] = PL_uuemap[(077 & (((*s << 4) & 060) | ((s[1] >> 4) & 017)))]; |
1722 | hunk[2] = PL_uuemap[(077 & (((s[1] << 2) & 074) | ((s[2] >> 6) & 03)))]; |
1723 | hunk[3] = PL_uuemap[(077 & (s[2] & 077))]; |
1724 | sv_catpvn(sv, hunk, 4); |
1725 | s += 3; |
1726 | len -= 3; |
1727 | } |
1728 | if (len > 0) { |
1729 | char r = (len > 1 ? s[1] : '\0'); |
1730 | hunk[0] = PL_uuemap[(077 & (*s >> 2))]; |
1731 | hunk[1] = PL_uuemap[(077 & (((*s << 4) & 060) | ((r >> 4) & 017)))]; |
1732 | hunk[2] = PL_uuemap[(077 & ((r << 2) & 074))]; |
1733 | hunk[3] = PL_uuemap[0]; |
1734 | sv_catpvn(sv, hunk, 4); |
1735 | } |
1736 | sv_catpvn(sv, "\n", 1); |
1737 | } |
1738 | |
1739 | STATIC SV * |
1740 | S_is_an_int(pTHX_ char *s, STRLEN l) |
1741 | { |
1742 | STRLEN n_a; |
1743 | SV *result = newSVpvn(s, l); |
1744 | char *result_c = SvPV(result, n_a); /* convenience */ |
1745 | char *out = result_c; |
1746 | bool skip = 1; |
1747 | bool ignore = 0; |
1748 | |
1749 | while (*s) { |
1750 | switch (*s) { |
1751 | case ' ': |
1752 | break; |
1753 | case '+': |
1754 | if (!skip) { |
1755 | SvREFCNT_dec(result); |
1756 | return (NULL); |
1757 | } |
1758 | break; |
1759 | case '0': |
1760 | case '1': |
1761 | case '2': |
1762 | case '3': |
1763 | case '4': |
1764 | case '5': |
1765 | case '6': |
1766 | case '7': |
1767 | case '8': |
1768 | case '9': |
1769 | skip = 0; |
1770 | if (!ignore) { |
1771 | *(out++) = *s; |
1772 | } |
1773 | break; |
1774 | case '.': |
1775 | ignore = 1; |
1776 | break; |
1777 | default: |
1778 | SvREFCNT_dec(result); |
1779 | return (NULL); |
1780 | } |
1781 | s++; |
1782 | } |
1783 | *(out++) = '\0'; |
1784 | SvCUR_set(result, out - result_c); |
1785 | return (result); |
1786 | } |
1787 | |
1788 | /* pnum must be '\0' terminated */ |
1789 | STATIC int |
1790 | S_div128(pTHX_ SV *pnum, bool *done) |
1791 | { |
1792 | STRLEN len; |
1793 | char *s = SvPV(pnum, len); |
1794 | int m = 0; |
1795 | int r = 0; |
1796 | char *t = s; |
1797 | |
1798 | *done = 1; |
1799 | while (*t) { |
1800 | int i; |
1801 | |
1802 | i = m * 10 + (*t - '0'); |
1803 | m = i & 0x7F; |
1804 | r = (i >> 7); /* r < 10 */ |
1805 | if (r) { |
1806 | *done = 0; |
1807 | } |
1808 | *(t++) = '0' + r; |
1809 | } |
1810 | *(t++) = '\0'; |
1811 | SvCUR_set(pnum, (STRLEN) (t - s)); |
1812 | return (m); |
1813 | } |
1814 | |
49704364 |
1815 | |
a6ec74c1 |
1816 | |
18529408 |
1817 | /* |
1818 | =for apidoc pack_cat |
1819 | |
7accc089 |
1820 | The engine implementing pack() Perl function. Note: parameters next_in_list and |
1821 | flags are not used. This call should not be used; use packlist instead. |
18529408 |
1822 | |
1823 | =cut */ |
1824 | |
49704364 |
1825 | |
18529408 |
1826 | void |
1827 | Perl_pack_cat(pTHX_ SV *cat, char *pat, register char *patend, register SV **beglist, SV **endlist, SV ***next_in_list, U32 flags) |
a6ec74c1 |
1828 | { |
49704364 |
1829 | tempsym_t sym = { 0 }; |
1830 | sym.patptr = pat; |
1831 | sym.patend = patend; |
7accc089 |
1832 | sym.flags = FLAG_PACK; |
1833 | |
1834 | (void)pack_rec( cat, &sym, beglist, endlist ); |
1835 | } |
1836 | |
1837 | |
1838 | /* |
1839 | =for apidoc packlist |
1840 | |
1841 | The engine implementing pack() Perl function. |
1842 | |
1843 | =cut */ |
1844 | |
1845 | |
1846 | void |
1847 | Perl_packlist(pTHX_ SV *cat, char *pat, register char *patend, register SV **beglist, SV **endlist ) |
1848 | { |
1849 | tempsym_t sym = { 0 }; |
1850 | sym.patptr = pat; |
1851 | sym.patend = patend; |
1852 | sym.flags = FLAG_PACK; |
49704364 |
1853 | |
1854 | (void)pack_rec( cat, &sym, beglist, endlist ); |
1855 | } |
1856 | |
1857 | |
1858 | STATIC |
1859 | SV ** |
1860 | S_pack_rec(pTHX_ SV *cat, register tempsym_t* symptr, register SV **beglist, SV **endlist ) |
1861 | { |
a6ec74c1 |
1862 | register I32 items; |
1863 | STRLEN fromlen; |
49704364 |
1864 | register I32 len = 0; |
a6ec74c1 |
1865 | SV *fromstr; |
1866 | /*SUPPRESS 442*/ |
1867 | static char null10[] = {0,0,0,0,0,0,0,0,0,0}; |
1868 | static char *space10 = " "; |
49704364 |
1869 | bool found; |
a6ec74c1 |
1870 | |
1871 | /* These must not be in registers: */ |
1872 | char achar; |
ef108786 |
1873 | I16 ai16; |
1874 | U16 au16; |
1875 | I32 ai32; |
1876 | U32 au32; |
a6ec74c1 |
1877 | #ifdef HAS_QUAD |
1878 | Quad_t aquad; |
1879 | Uquad_t auquad; |
1880 | #endif |
ef108786 |
1881 | #if SHORTSIZE != SIZE16 |
1882 | short ashort; |
1883 | unsigned short aushort; |
1884 | #endif |
1885 | int aint; |
1886 | unsigned int auint; |
1887 | #if LONGSIZE != SIZE32 |
1888 | long along; |
1889 | unsigned long aulong; |
1890 | #endif |
a6ec74c1 |
1891 | char *aptr; |
1892 | float afloat; |
1893 | double adouble; |
ef108786 |
1894 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
1895 | long double aldouble; |
1896 | #endif |
1897 | IV aiv; |
1898 | UV auv; |
1899 | NV anv; |
1900 | |
49704364 |
1901 | int strrelbeg = SvCUR(cat); |
1902 | tempsym_t lookahead; |
a6ec74c1 |
1903 | |
18529408 |
1904 | items = endlist - beglist; |
49704364 |
1905 | found = next_symbol( symptr ); |
1906 | |
18529408 |
1907 | #ifndef PACKED_IS_OCTETS |
49704364 |
1908 | if (symptr->level == 0 && found && symptr->code == 'U' ){ |
18529408 |
1909 | SvUTF8_on(cat); |
49704364 |
1910 | } |
18529408 |
1911 | #endif |
49704364 |
1912 | |
1913 | while (found) { |
a6ec74c1 |
1914 | SV *lengthcode = Nullsv; |
18529408 |
1915 | #define NEXTFROM ( lengthcode ? lengthcode : items-- > 0 ? *beglist++ : &PL_sv_no) |
49704364 |
1916 | |
1917 | I32 datumtype = symptr->code; |
1918 | howlen_t howlen; |
1919 | |
1920 | switch( howlen = symptr->howlen ){ |
1921 | case e_no_len: |
1922 | case e_number: |
1923 | len = symptr->length; |
1924 | break; |
1925 | case e_star: |
1109a392 |
1926 | len = strchr("@Xxu", TYPE_NO_MODIFIERS(datumtype)) ? 0 : items; |
49704364 |
1927 | break; |
1928 | } |
1929 | |
1930 | /* Look ahead for next symbol. Do we have code/code? */ |
1931 | lookahead = *symptr; |
1932 | found = next_symbol(&lookahead); |
1933 | if ( symptr->flags & FLAG_SLASH ) { |
1934 | if (found){ |
1935 | if ( 0 == strchr( "aAZ", lookahead.code ) || |
1936 | e_star != lookahead.howlen ) |
1937 | Perl_croak(aTHX_ "'/' must be followed by 'a*', 'A*' or 'Z*' in pack"); |
1938 | lengthcode = sv_2mortal(newSViv(sv_len(items > 0 |
18529408 |
1939 | ? *beglist : &PL_sv_no) |
49704364 |
1940 | + (lookahead.code == 'Z' ? 1 : 0))); |
1941 | } else { |
1942 | Perl_croak(aTHX_ "Code missing after '/' in pack"); |
1943 | } |
a6ec74c1 |
1944 | } |
49704364 |
1945 | |
1109a392 |
1946 | switch(TYPE_NO_ENDIANNESS(datumtype)) { |
a6ec74c1 |
1947 | default: |
1109a392 |
1948 | Perl_croak(aTHX_ "Invalid type '%c' in pack", (int)TYPE_NO_MODIFIERS(datumtype)); |
a6ec74c1 |
1949 | case '%': |
49704364 |
1950 | Perl_croak(aTHX_ "'%%' may not be used in pack"); |
a6ec74c1 |
1951 | case '@': |
49704364 |
1952 | len += strrelbeg - SvCUR(cat); |
a6ec74c1 |
1953 | if (len > 0) |
1954 | goto grow; |
1955 | len = -len; |
1956 | if (len > 0) |
1957 | goto shrink; |
1958 | break; |
18529408 |
1959 | case '(': |
1960 | { |
49704364 |
1961 | tempsym_t savsym = *symptr; |
66c611c5 |
1962 | U32 group_modifiers = TYPE_MODIFIERS(datumtype & ~symptr->flags); |
1963 | symptr->flags |= group_modifiers; |
49704364 |
1964 | symptr->patend = savsym.grpend; |
1965 | symptr->level++; |
18529408 |
1966 | while (len--) { |
49704364 |
1967 | symptr->patptr = savsym.grpbeg; |
1968 | beglist = pack_rec(cat, symptr, beglist, endlist ); |
1969 | if (savsym.howlen == e_star && beglist == endlist) |
18529408 |
1970 | break; /* No way to continue */ |
1971 | } |
66c611c5 |
1972 | symptr->flags &= ~group_modifiers; |
49704364 |
1973 | lookahead.flags = symptr->flags; |
1974 | *symptr = savsym; |
18529408 |
1975 | break; |
1976 | } |
62f95557 |
1977 | case 'X' | TYPE_IS_SHRIEKING: |
1978 | if (!len) /* Avoid division by 0 */ |
1979 | len = 1; |
1980 | len = (SvCUR(cat)) % len; |
1981 | /* FALL THROUGH */ |
a6ec74c1 |
1982 | case 'X': |
1983 | shrink: |
eb160463 |
1984 | if ((I32)SvCUR(cat) < len) |
49704364 |
1985 | Perl_croak(aTHX_ "'X' outside of string in pack"); |
a6ec74c1 |
1986 | SvCUR(cat) -= len; |
1987 | *SvEND(cat) = '\0'; |
1988 | break; |
62f95557 |
1989 | case 'x' | TYPE_IS_SHRIEKING: |
1990 | if (!len) /* Avoid division by 0 */ |
1991 | len = 1; |
1992 | aint = (SvCUR(cat)) % len; |
1993 | if (aint) /* Other portable ways? */ |
1994 | len = len - aint; |
1995 | else |
1996 | len = 0; |
1997 | /* FALL THROUGH */ |
49704364 |
1998 | |
a6ec74c1 |
1999 | case 'x': |
2000 | grow: |
2001 | while (len >= 10) { |
2002 | sv_catpvn(cat, null10, 10); |
2003 | len -= 10; |
2004 | } |
2005 | sv_catpvn(cat, null10, len); |
2006 | break; |
2007 | case 'A': |
2008 | case 'Z': |
2009 | case 'a': |
2010 | fromstr = NEXTFROM; |
2011 | aptr = SvPV(fromstr, fromlen); |
49704364 |
2012 | if (howlen == e_star) { |
a6ec74c1 |
2013 | len = fromlen; |
2014 | if (datumtype == 'Z') |
2015 | ++len; |
2016 | } |
eb160463 |
2017 | if ((I32)fromlen >= len) { |
a6ec74c1 |
2018 | sv_catpvn(cat, aptr, len); |
2019 | if (datumtype == 'Z') |
2020 | *(SvEND(cat)-1) = '\0'; |
2021 | } |
2022 | else { |
2023 | sv_catpvn(cat, aptr, fromlen); |
2024 | len -= fromlen; |
2025 | if (datumtype == 'A') { |
2026 | while (len >= 10) { |
2027 | sv_catpvn(cat, space10, 10); |
2028 | len -= 10; |
2029 | } |
2030 | sv_catpvn(cat, space10, len); |
2031 | } |
2032 | else { |
2033 | while (len >= 10) { |
2034 | sv_catpvn(cat, null10, 10); |
2035 | len -= 10; |
2036 | } |
2037 | sv_catpvn(cat, null10, len); |
2038 | } |
2039 | } |
2040 | break; |
2041 | case 'B': |
2042 | case 'b': |
2043 | { |
2044 | register char *str; |
2045 | I32 saveitems; |
2046 | |
2047 | fromstr = NEXTFROM; |
2048 | saveitems = items; |
2049 | str = SvPV(fromstr, fromlen); |
49704364 |
2050 | if (howlen == e_star) |
a6ec74c1 |
2051 | len = fromlen; |
2052 | aint = SvCUR(cat); |
2053 | SvCUR(cat) += (len+7)/8; |
2054 | SvGROW(cat, SvCUR(cat) + 1); |
2055 | aptr = SvPVX(cat) + aint; |
eb160463 |
2056 | if (len > (I32)fromlen) |
a6ec74c1 |
2057 | len = fromlen; |
2058 | aint = len; |
2059 | items = 0; |
2060 | if (datumtype == 'B') { |
2061 | for (len = 0; len++ < aint;) { |
2062 | items |= *str++ & 1; |
2063 | if (len & 7) |
2064 | items <<= 1; |
2065 | else { |
2066 | *aptr++ = items & 0xff; |
2067 | items = 0; |
2068 | } |
2069 | } |
2070 | } |
2071 | else { |
2072 | for (len = 0; len++ < aint;) { |
2073 | if (*str++ & 1) |
2074 | items |= 128; |
2075 | if (len & 7) |
2076 | items >>= 1; |
2077 | else { |
2078 | *aptr++ = items & 0xff; |
2079 | items = 0; |
2080 | } |
2081 | } |
2082 | } |
2083 | if (aint & 7) { |
2084 | if (datumtype == 'B') |
2085 | items <<= 7 - (aint & 7); |
2086 | else |
2087 | items >>= 7 - (aint & 7); |
2088 | *aptr++ = items & 0xff; |
2089 | } |
2090 | str = SvPVX(cat) + SvCUR(cat); |
2091 | while (aptr <= str) |
2092 | *aptr++ = '\0'; |
2093 | |
2094 | items = saveitems; |
2095 | } |
2096 | break; |
2097 | case 'H': |
2098 | case 'h': |
2099 | { |
2100 | register char *str; |
2101 | I32 saveitems; |
2102 | |
2103 | fromstr = NEXTFROM; |
2104 | saveitems = items; |
2105 | str = SvPV(fromstr, fromlen); |
49704364 |
2106 | if (howlen == e_star) |
a6ec74c1 |
2107 | len = fromlen; |
2108 | aint = SvCUR(cat); |
2109 | SvCUR(cat) += (len+1)/2; |
2110 | SvGROW(cat, SvCUR(cat) + 1); |
2111 | aptr = SvPVX(cat) + aint; |
eb160463 |
2112 | if (len > (I32)fromlen) |
a6ec74c1 |
2113 | len = fromlen; |
2114 | aint = len; |
2115 | items = 0; |
2116 | if (datumtype == 'H') { |
2117 | for (len = 0; len++ < aint;) { |
2118 | if (isALPHA(*str)) |
2119 | items |= ((*str++ & 15) + 9) & 15; |
2120 | else |
2121 | items |= *str++ & 15; |
2122 | if (len & 1) |
2123 | items <<= 4; |
2124 | else { |
2125 | *aptr++ = items & 0xff; |
2126 | items = 0; |
2127 | } |
2128 | } |
2129 | } |
2130 | else { |
2131 | for (len = 0; len++ < aint;) { |
2132 | if (isALPHA(*str)) |
2133 | items |= (((*str++ & 15) + 9) & 15) << 4; |
2134 | else |
2135 | items |= (*str++ & 15) << 4; |
2136 | if (len & 1) |
2137 | items >>= 4; |
2138 | else { |
2139 | *aptr++ = items & 0xff; |
2140 | items = 0; |
2141 | } |
2142 | } |
2143 | } |
2144 | if (aint & 1) |
2145 | *aptr++ = items & 0xff; |
2146 | str = SvPVX(cat) + SvCUR(cat); |
2147 | while (aptr <= str) |
2148 | *aptr++ = '\0'; |
2149 | |
2150 | items = saveitems; |
2151 | } |
2152 | break; |
2153 | case 'C': |
2154 | case 'c': |
2155 | while (len-- > 0) { |
2156 | fromstr = NEXTFROM; |
1109a392 |
2157 | switch (TYPE_NO_MODIFIERS(datumtype)) { |
a6ec74c1 |
2158 | case 'C': |
2159 | aint = SvIV(fromstr); |
2160 | if ((aint < 0 || aint > 255) && |
2161 | ckWARN(WARN_PACK)) |
9014280d |
2162 | Perl_warner(aTHX_ packWARN(WARN_PACK), |
49704364 |
2163 | "Character in 'C' format wrapped in pack"); |
a6ec74c1 |
2164 | achar = aint & 255; |
2165 | sv_catpvn(cat, &achar, sizeof(char)); |
2166 | break; |
2167 | case 'c': |
2168 | aint = SvIV(fromstr); |
2169 | if ((aint < -128 || aint > 127) && |
2170 | ckWARN(WARN_PACK)) |
9014280d |
2171 | Perl_warner(aTHX_ packWARN(WARN_PACK), |
49704364 |
2172 | "Character in 'c' format wrapped in pack" ); |
a6ec74c1 |
2173 | achar = aint & 255; |
2174 | sv_catpvn(cat, &achar, sizeof(char)); |
2175 | break; |
2176 | } |
2177 | } |
2178 | break; |
2179 | case 'U': |
2180 | while (len-- > 0) { |
2181 | fromstr = NEXTFROM; |
e87322b2 |
2182 | auint = UNI_TO_NATIVE(SvUV(fromstr)); |
89ebb4a3 |
2183 | SvGROW(cat, SvCUR(cat) + UTF8_MAXBYTES + 1); |
52ea3e69 |
2184 | SvCUR_set(cat, |
2185 | (char*)uvchr_to_utf8_flags((U8*)SvEND(cat), |
2186 | auint, |
2187 | ckWARN(WARN_UTF8) ? |
2188 | 0 : UNICODE_ALLOW_ANY) |
2189 | - SvPVX(cat)); |
a6ec74c1 |
2190 | } |
2191 | *SvEND(cat) = '\0'; |
2192 | break; |
2193 | /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */ |
2194 | case 'f': |
a6ec74c1 |
2195 | while (len-- > 0) { |
2196 | fromstr = NEXTFROM; |
5cdb9e01 |
2197 | #ifdef __VOS__ |
2198 | /* VOS does not automatically map a floating-point overflow |
2199 | during conversion from double to float into infinity, so we |
2200 | do it by hand. This code should either be generalized for |
2201 | any OS that needs it, or removed if and when VOS implements |
2202 | posix-976 (suggestion to support mapping to infinity). |
2203 | Paul.Green@stratus.com 02-04-02. */ |
2204 | if (SvNV(fromstr) > FLT_MAX) |
2205 | afloat = _float_constants[0]; /* single prec. inf. */ |
2206 | else if (SvNV(fromstr) < -FLT_MAX) |
2207 | afloat = _float_constants[0]; /* single prec. inf. */ |
2208 | else afloat = (float)SvNV(fromstr); |
2209 | #else |
baf3cf9c |
2210 | # if defined(VMS) && !defined(__IEEE_FP) |
2211 | /* IEEE fp overflow shenanigans are unavailable on VAX and optional |
2212 | * on Alpha; fake it if we don't have them. |
2213 | */ |
2214 | if (SvNV(fromstr) > FLT_MAX) |
2215 | afloat = FLT_MAX; |
2216 | else if (SvNV(fromstr) < -FLT_MAX) |
2217 | afloat = -FLT_MAX; |
2218 | else afloat = (float)SvNV(fromstr); |
2219 | # else |
a6ec74c1 |
2220 | afloat = (float)SvNV(fromstr); |
baf3cf9c |
2221 | # endif |
5cdb9e01 |
2222 | #endif |
1109a392 |
2223 | DO_BO_PACK_N(afloat, float); |
a6ec74c1 |
2224 | sv_catpvn(cat, (char *)&afloat, sizeof (float)); |
2225 | } |
2226 | break; |
2227 | case 'd': |
a6ec74c1 |
2228 | while (len-- > 0) { |
2229 | fromstr = NEXTFROM; |
5cdb9e01 |
2230 | #ifdef __VOS__ |
2231 | /* VOS does not automatically map a floating-point overflow |
2232 | during conversion from long double to double into infinity, |
2233 | so we do it by hand. This code should either be generalized |
2234 | for any OS that needs it, or removed if and when VOS |
2235 | implements posix-976 (suggestion to support mapping to |
2236 | infinity). Paul.Green@stratus.com 02-04-02. */ |
2237 | if (SvNV(fromstr) > DBL_MAX) |
2238 | adouble = _double_constants[0]; /* double prec. inf. */ |
2239 | else if (SvNV(fromstr) < -DBL_MAX) |
2240 | adouble = _double_constants[0]; /* double prec. inf. */ |
2241 | else adouble = (double)SvNV(fromstr); |
2242 | #else |
baf3cf9c |
2243 | # if defined(VMS) && !defined(__IEEE_FP) |
2244 | /* IEEE fp overflow shenanigans are unavailable on VAX and optional |
2245 | * on Alpha; fake it if we don't have them. |
2246 | */ |
2247 | if (SvNV(fromstr) > DBL_MAX) |
2248 | adouble = DBL_MAX; |
2249 | else if (SvNV(fromstr) < -DBL_MAX) |
2250 | adouble = -DBL_MAX; |
2251 | else adouble = (double)SvNV(fromstr); |
2252 | # else |
a6ec74c1 |
2253 | adouble = (double)SvNV(fromstr); |
baf3cf9c |
2254 | # endif |
5cdb9e01 |
2255 | #endif |
1109a392 |
2256 | DO_BO_PACK_N(adouble, double); |
a6ec74c1 |
2257 | sv_catpvn(cat, (char *)&adouble, sizeof (double)); |
2258 | } |
2259 | break; |
92d41999 |
2260 | case 'F': |
1109a392 |
2261 | Zero(&anv, 1, NV); /* can be long double with unused bits */ |
92d41999 |
2262 | while (len-- > 0) { |
2263 | fromstr = NEXTFROM; |
2264 | anv = SvNV(fromstr); |
1109a392 |
2265 | DO_BO_PACK_N(anv, NV); |
92d41999 |
2266 | sv_catpvn(cat, (char *)&anv, NVSIZE); |
2267 | } |
2268 | break; |
2269 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
2270 | case 'D': |
1109a392 |
2271 | /* long doubles can have unused bits, which may be nonzero */ |
2272 | Zero(&aldouble, 1, long double); |
92d41999 |
2273 | while (len-- > 0) { |
2274 | fromstr = NEXTFROM; |
2275 | aldouble = (long double)SvNV(fromstr); |
1109a392 |
2276 | DO_BO_PACK_N(aldouble, long double); |
92d41999 |
2277 | sv_catpvn(cat, (char *)&aldouble, LONG_DOUBLESIZE); |
2278 | } |
2279 | break; |
2280 | #endif |
068bd2e7 |
2281 | case 'n' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2282 | case 'n': |
2283 | while (len-- > 0) { |
2284 | fromstr = NEXTFROM; |
ef108786 |
2285 | ai16 = (I16)SvIV(fromstr); |
a6ec74c1 |
2286 | #ifdef HAS_HTONS |
ef108786 |
2287 | ai16 = PerlSock_htons(ai16); |
a6ec74c1 |
2288 | #endif |
ef108786 |
2289 | CAT16(cat, &ai16); |
a6ec74c1 |
2290 | } |
2291 | break; |
068bd2e7 |
2292 | case 'v' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2293 | case 'v': |
2294 | while (len-- > 0) { |
2295 | fromstr = NEXTFROM; |
ef108786 |
2296 | ai16 = (I16)SvIV(fromstr); |
a6ec74c1 |
2297 | #ifdef HAS_HTOVS |
ef108786 |
2298 | ai16 = htovs(ai16); |
a6ec74c1 |
2299 | #endif |
ef108786 |
2300 | CAT16(cat, &ai16); |
a6ec74c1 |
2301 | } |
2302 | break; |
49704364 |
2303 | case 'S' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2304 | #if SHORTSIZE != SIZE16 |
49704364 |
2305 | { |
a6ec74c1 |
2306 | while (len-- > 0) { |
2307 | fromstr = NEXTFROM; |
2308 | aushort = SvUV(fromstr); |
1109a392 |
2309 | DO_BO_PACK(aushort, s); |
a6ec74c1 |
2310 | sv_catpvn(cat, (char *)&aushort, sizeof(unsigned short)); |
2311 | } |
49704364 |
2312 | } |
2313 | break; |
2314 | #else |
2315 | /* Fall through! */ |
a6ec74c1 |
2316 | #endif |
49704364 |
2317 | case 'S': |
a6ec74c1 |
2318 | { |
a6ec74c1 |
2319 | while (len-- > 0) { |
2320 | fromstr = NEXTFROM; |
ef108786 |
2321 | au16 = (U16)SvUV(fromstr); |
2322 | DO_BO_PACK(au16, 16); |
2323 | CAT16(cat, &au16); |
a6ec74c1 |
2324 | } |
2325 | |
2326 | } |
2327 | break; |
49704364 |
2328 | case 's' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2329 | #if SHORTSIZE != SIZE16 |
49704364 |
2330 | { |
a6ec74c1 |
2331 | while (len-- > 0) { |
2332 | fromstr = NEXTFROM; |
2333 | ashort = SvIV(fromstr); |
1109a392 |
2334 | DO_BO_PACK(ashort, s); |
a6ec74c1 |
2335 | sv_catpvn(cat, (char *)&ashort, sizeof(short)); |
2336 | } |
2337 | } |
49704364 |
2338 | break; |
2339 | #else |
2340 | /* Fall through! */ |
a6ec74c1 |
2341 | #endif |
49704364 |
2342 | case 's': |
2343 | while (len-- > 0) { |
2344 | fromstr = NEXTFROM; |
ef108786 |
2345 | ai16 = (I16)SvIV(fromstr); |
2346 | DO_BO_PACK(ai16, 16); |
2347 | CAT16(cat, &ai16); |
a6ec74c1 |
2348 | } |
2349 | break; |
2350 | case 'I': |
49704364 |
2351 | case 'I' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2352 | while (len-- > 0) { |
2353 | fromstr = NEXTFROM; |
2354 | auint = SvUV(fromstr); |
1109a392 |
2355 | DO_BO_PACK(auint, i); |
a6ec74c1 |
2356 | sv_catpvn(cat, (char*)&auint, sizeof(unsigned int)); |
2357 | } |
2358 | break; |
92d41999 |
2359 | case 'j': |
2360 | while (len-- > 0) { |
2361 | fromstr = NEXTFROM; |
2362 | aiv = SvIV(fromstr); |
1109a392 |
2363 | #if IVSIZE == INTSIZE |
2364 | DO_BO_PACK(aiv, i); |
2365 | #elif IVSIZE == LONGSIZE |
2366 | DO_BO_PACK(aiv, l); |
2367 | #elif defined(HAS_QUAD) && IVSIZE == U64SIZE |
2368 | DO_BO_PACK(aiv, 64); |
2369 | #endif |
92d41999 |
2370 | sv_catpvn(cat, (char*)&aiv, IVSIZE); |
2371 | } |
2372 | break; |
2373 | case 'J': |
2374 | while (len-- > 0) { |
2375 | fromstr = NEXTFROM; |
2376 | auv = SvUV(fromstr); |
1109a392 |
2377 | #if UVSIZE == INTSIZE |
2378 | DO_BO_PACK(auv, i); |
2379 | #elif UVSIZE == LONGSIZE |
2380 | DO_BO_PACK(auv, l); |
2381 | #elif defined(HAS_QUAD) && UVSIZE == U64SIZE |
2382 | DO_BO_PACK(auv, 64); |
2383 | #endif |
92d41999 |
2384 | sv_catpvn(cat, (char*)&auv, UVSIZE); |
2385 | } |
2386 | break; |
a6ec74c1 |
2387 | case 'w': |
2388 | while (len-- > 0) { |
2389 | fromstr = NEXTFROM; |
15e9f109 |
2390 | anv = SvNV(fromstr); |
a6ec74c1 |
2391 | |
15e9f109 |
2392 | if (anv < 0) |
49704364 |
2393 | Perl_croak(aTHX_ "Cannot compress negative numbers in pack"); |
a6ec74c1 |
2394 | |
196b62db |
2395 | /* 0xFFFFFFFFFFFFFFFF may cast to 18446744073709551616.0, |
2396 | which is == UV_MAX_P1. IOK is fine (instead of UV_only), as |
2397 | any negative IVs will have already been got by the croak() |
2398 | above. IOK is untrue for fractions, so we test them |
2399 | against UV_MAX_P1. */ |
15e9f109 |
2400 | if (SvIOK(fromstr) || anv < UV_MAX_P1) |
a6ec74c1 |
2401 | { |
7c1b502b |
2402 | char buf[(sizeof(UV)*8)/7+1]; |
a6ec74c1 |
2403 | char *in = buf + sizeof(buf); |
196b62db |
2404 | UV auv = SvUV(fromstr); |
a6ec74c1 |
2405 | |
2406 | do { |
eb160463 |
2407 | *--in = (char)((auv & 0x7f) | 0x80); |
a6ec74c1 |
2408 | auv >>= 7; |
2409 | } while (auv); |
2410 | buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */ |
2411 | sv_catpvn(cat, in, (buf + sizeof(buf)) - in); |
2412 | } |
2413 | else if (SvPOKp(fromstr)) { /* decimal string arithmetics */ |
2414 | char *from, *result, *in; |
2415 | SV *norm; |
2416 | STRLEN len; |
2417 | bool done; |
2418 | |
2419 | /* Copy string and check for compliance */ |
2420 | from = SvPV(fromstr, len); |
2421 | if ((norm = is_an_int(from, len)) == NULL) |
49704364 |
2422 | Perl_croak(aTHX_ "Can only compress unsigned integers in pack"); |
a6ec74c1 |
2423 | |
2424 | New('w', result, len, char); |
2425 | in = result + len; |
2426 | done = FALSE; |
2427 | while (!done) |
2428 | *--in = div128(norm, &done) | 0x80; |
2429 | result[len - 1] &= 0x7F; /* clear continue bit */ |
2430 | sv_catpvn(cat, in, (result + len) - in); |
2431 | Safefree(result); |
2432 | SvREFCNT_dec(norm); /* free norm */ |
2433 | } |
2434 | else if (SvNOKp(fromstr)) { |
0258719b |
2435 | /* 10**NV_MAX_10_EXP is the largest power of 10 |
2436 | so 10**(NV_MAX_10_EXP+1) is definately unrepresentable |
2437 | given 10**(NV_MAX_10_EXP+1) == 128 ** x solve for x: |
2438 | x = (NV_MAX_10_EXP+1) * log (10) / log (128) |
2439 | And with that many bytes only Inf can overflow. |
8f8d40ab |
2440 | Some C compilers are strict about integral constant |
2441 | expressions so we conservatively divide by a slightly |
2442 | smaller integer instead of multiplying by the exact |
2443 | floating-point value. |
0258719b |
2444 | */ |
2445 | #ifdef NV_MAX_10_EXP |
8f8d40ab |
2446 | /* char buf[1 + (int)((NV_MAX_10_EXP + 1) * 0.47456)]; -- invalid C */ |
2447 | char buf[1 + (int)((NV_MAX_10_EXP + 1) / 2)]; /* valid C */ |
0258719b |
2448 | #else |
8f8d40ab |
2449 | /* char buf[1 + (int)((308 + 1) * 0.47456)]; -- invalid C */ |
2450 | char buf[1 + (int)((308 + 1) / 2)]; /* valid C */ |
0258719b |
2451 | #endif |
a6ec74c1 |
2452 | char *in = buf + sizeof(buf); |
2453 | |
15e9f109 |
2454 | anv = Perl_floor(anv); |
a6ec74c1 |
2455 | do { |
15e9f109 |
2456 | NV next = Perl_floor(anv / 128); |
a6ec74c1 |
2457 | if (in <= buf) /* this cannot happen ;-) */ |
49704364 |
2458 | Perl_croak(aTHX_ "Cannot compress integer in pack"); |
0258719b |
2459 | *--in = (unsigned char)(anv - (next * 128)) | 0x80; |
15e9f109 |
2460 | anv = next; |
2461 | } while (anv > 0); |
a6ec74c1 |
2462 | buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */ |
2463 | sv_catpvn(cat, in, (buf + sizeof(buf)) - in); |
2464 | } |
735b914b |
2465 | else { |
2466 | char *from, *result, *in; |
2467 | SV *norm; |
2468 | STRLEN len; |
2469 | bool done; |
2470 | |
2471 | /* Copy string and check for compliance */ |
2472 | from = SvPV(fromstr, len); |
2473 | if ((norm = is_an_int(from, len)) == NULL) |
49704364 |
2474 | Perl_croak(aTHX_ "Can only compress unsigned integers in pack"); |
735b914b |
2475 | |
2476 | New('w', result, len, char); |
2477 | in = result + len; |
2478 | done = FALSE; |
2479 | while (!done) |
2480 | *--in = div128(norm, &done) | 0x80; |
2481 | result[len - 1] &= 0x7F; /* clear continue bit */ |
2482 | sv_catpvn(cat, in, (result + len) - in); |
2483 | Safefree(result); |
2484 | SvREFCNT_dec(norm); /* free norm */ |
2485 | } |
a6ec74c1 |
2486 | } |
2487 | break; |
2488 | case 'i': |
49704364 |
2489 | case 'i' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2490 | while (len-- > 0) { |
2491 | fromstr = NEXTFROM; |
2492 | aint = SvIV(fromstr); |
1109a392 |
2493 | DO_BO_PACK(aint, i); |
a6ec74c1 |
2494 | sv_catpvn(cat, (char*)&aint, sizeof(int)); |
2495 | } |
2496 | break; |
068bd2e7 |
2497 | case 'N' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2498 | case 'N': |
2499 | while (len-- > 0) { |
2500 | fromstr = NEXTFROM; |
ef108786 |
2501 | au32 = SvUV(fromstr); |
a6ec74c1 |
2502 | #ifdef HAS_HTONL |
ef108786 |
2503 | au32 = PerlSock_htonl(au32); |
a6ec74c1 |
2504 | #endif |
ef108786 |
2505 | CAT32(cat, &au32); |
a6ec74c1 |
2506 | } |
2507 | break; |
068bd2e7 |
2508 | case 'V' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2509 | case 'V': |
2510 | while (len-- > 0) { |
2511 | fromstr = NEXTFROM; |
ef108786 |
2512 | au32 = SvUV(fromstr); |
a6ec74c1 |
2513 | #ifdef HAS_HTOVL |
ef108786 |
2514 | au32 = htovl(au32); |
a6ec74c1 |
2515 | #endif |
ef108786 |
2516 | CAT32(cat, &au32); |
a6ec74c1 |
2517 | } |
2518 | break; |
49704364 |
2519 | case 'L' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2520 | #if LONGSIZE != SIZE32 |
49704364 |
2521 | { |
a6ec74c1 |
2522 | while (len-- > 0) { |
2523 | fromstr = NEXTFROM; |
2524 | aulong = SvUV(fromstr); |
1109a392 |
2525 | DO_BO_PACK(aulong, l); |
a6ec74c1 |
2526 | sv_catpvn(cat, (char *)&aulong, sizeof(unsigned long)); |
2527 | } |
2528 | } |
49704364 |
2529 | break; |
2530 | #else |
2531 | /* Fall though! */ |
a6ec74c1 |
2532 | #endif |
49704364 |
2533 | case 'L': |
a6ec74c1 |
2534 | { |
2535 | while (len-- > 0) { |
2536 | fromstr = NEXTFROM; |
ef108786 |
2537 | au32 = SvUV(fromstr); |
2538 | DO_BO_PACK(au32, 32); |
2539 | CAT32(cat, &au32); |
a6ec74c1 |
2540 | } |
2541 | } |
2542 | break; |
49704364 |
2543 | case 'l' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2544 | #if LONGSIZE != SIZE32 |
49704364 |
2545 | { |
a6ec74c1 |
2546 | while (len-- > 0) { |
2547 | fromstr = NEXTFROM; |
2548 | along = SvIV(fromstr); |
1109a392 |
2549 | DO_BO_PACK(along, l); |
a6ec74c1 |
2550 | sv_catpvn(cat, (char *)&along, sizeof(long)); |
2551 | } |
2552 | } |
49704364 |
2553 | break; |
2554 | #else |
2555 | /* Fall though! */ |
a6ec74c1 |
2556 | #endif |
49704364 |
2557 | case 'l': |
2558 | while (len-- > 0) { |
2559 | fromstr = NEXTFROM; |
ef108786 |
2560 | ai32 = SvIV(fromstr); |
2561 | DO_BO_PACK(ai32, 32); |
2562 | CAT32(cat, &ai32); |
a6ec74c1 |
2563 | } |
2564 | break; |
2565 | #ifdef HAS_QUAD |
2566 | case 'Q': |
2567 | while (len-- > 0) { |
2568 | fromstr = NEXTFROM; |
2569 | auquad = (Uquad_t)SvUV(fromstr); |
1109a392 |
2570 | DO_BO_PACK(auquad, 64); |
a6ec74c1 |
2571 | sv_catpvn(cat, (char*)&auquad, sizeof(Uquad_t)); |
2572 | } |
2573 | break; |
2574 | case 'q': |
2575 | while (len-- > 0) { |
2576 | fromstr = NEXTFROM; |
2577 | aquad = (Quad_t)SvIV(fromstr); |
1109a392 |
2578 | DO_BO_PACK(aquad, 64); |
a6ec74c1 |
2579 | sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t)); |
2580 | } |
2581 | break; |
2582 | #endif |
2583 | case 'P': |
2584 | len = 1; /* assume SV is correct length */ |
49704364 |
2585 | /* Fall through! */ |
a6ec74c1 |
2586 | case 'p': |
2587 | while (len-- > 0) { |
2588 | fromstr = NEXTFROM; |
2589 | if (fromstr == &PL_sv_undef) |
2590 | aptr = NULL; |
2591 | else { |
2592 | STRLEN n_a; |
2593 | /* XXX better yet, could spirit away the string to |
2594 | * a safe spot and hang on to it until the result |
2595 | * of pack() (and all copies of the result) are |
2596 | * gone. |
2597 | */ |
2598 | if (ckWARN(WARN_PACK) && (SvTEMP(fromstr) |
2599 | || (SvPADTMP(fromstr) |
2600 | && !SvREADONLY(fromstr)))) |
2601 | { |
9014280d |
2602 | Perl_warner(aTHX_ packWARN(WARN_PACK), |
a6ec74c1 |
2603 | "Attempt to pack pointer to temporary value"); |
2604 | } |
2605 | if (SvPOK(fromstr) || SvNIOK(fromstr)) |
2606 | aptr = SvPV(fromstr,n_a); |
2607 | else |
2608 | aptr = SvPV_force(fromstr,n_a); |
2609 | } |
1109a392 |
2610 | DO_BO_PACK_P(aptr); |
a6ec74c1 |
2611 | sv_catpvn(cat, (char*)&aptr, sizeof(char*)); |
2612 | } |
2613 | break; |
2614 | case 'u': |
2615 | fromstr = NEXTFROM; |
2616 | aptr = SvPV(fromstr, fromlen); |
2617 | SvGROW(cat, fromlen * 4 / 3); |
19c9db5e |
2618 | if (len <= 2) |
a6ec74c1 |
2619 | len = 45; |
2620 | else |
2621 | len = len / 3 * 3; |
2622 | while (fromlen > 0) { |
2623 | I32 todo; |
2624 | |
eb160463 |
2625 | if ((I32)fromlen > len) |
a6ec74c1 |
2626 | todo = len; |
2627 | else |
2628 | todo = fromlen; |
2629 | doencodes(cat, aptr, todo); |
2630 | fromlen -= todo; |
2631 | aptr += todo; |
2632 | } |
2633 | break; |
2634 | } |
49704364 |
2635 | *symptr = lookahead; |
a6ec74c1 |
2636 | } |
49704364 |
2637 | return beglist; |
18529408 |
2638 | } |
2639 | #undef NEXTFROM |
2640 | |
2641 | |
2642 | PP(pp_pack) |
2643 | { |
2644 | dSP; dMARK; dORIGMARK; dTARGET; |
2645 | register SV *cat = TARG; |
2646 | STRLEN fromlen; |
2647 | register char *pat = SvPVx(*++MARK, fromlen); |
2648 | register char *patend = pat + fromlen; |
2649 | |
2650 | MARK++; |
2651 | sv_setpvn(cat, "", 0); |
2652 | |
7accc089 |
2653 | packlist(cat, pat, patend, MARK, SP + 1); |
18529408 |
2654 | |
a6ec74c1 |
2655 | SvSETMAGIC(cat); |
2656 | SP = ORIGMARK; |
2657 | PUSHs(cat); |
2658 | RETURN; |
2659 | } |
a6ec74c1 |
2660 | |
73cb7263 |
2661 | /* |
2662 | * Local variables: |
2663 | * c-indentation-style: bsd |
2664 | * c-basic-offset: 4 |
2665 | * indent-tabs-mode: t |
2666 | * End: |
2667 | * |
edf815fd |
2668 | * vim: shiftwidth=4: |
73cb7263 |
2669 | */ |