Commit | Line | Data |
---|---|---|
a6ec74c1 JH |
1 | /* pp_pack.c |
2 | * | |
1129b882 NC |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
4 | * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others | |
a6ec74c1 JH |
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 AT |
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. | |
4ac71550 TC |
17 | * |
18 | * [p.653 of _The Lord of the Rings_, IV/iv: "Of Herbs and Stewed Rabbit"] | |
d31a8517 AT |
19 | */ |
20 | ||
166f8a29 DM |
21 | /* This file contains pp ("push/pop") functions that |
22 | * execute the opcodes that make up a perl program. A typical pp function | |
23 | * expects to find its arguments on the stack, and usually pushes its | |
24 | * results onto the stack, hence the 'pp' terminology. Each OP structure | |
25 | * contains a pointer to the relevant pp_foo() function. | |
26 | * | |
27 | * This particular file just contains pp_pack() and pp_unpack(). See the | |
28 | * other pp*.c files for the rest of the pp_ functions. | |
29 | */ | |
30 | ||
a6ec74c1 JH |
31 | #include "EXTERN.h" |
32 | #define PERL_IN_PP_PACK_C | |
33 | #include "perl.h" | |
34 | ||
f7fe979e AL |
35 | /* Types used by pack/unpack */ |
36 | typedef enum { | |
37 | e_no_len, /* no length */ | |
38 | e_number, /* number, [] */ | |
39 | e_star /* asterisk */ | |
40 | } howlen_t; | |
41 | ||
42 | typedef struct tempsym { | |
43 | const char* patptr; /* current template char */ | |
44 | const char* patend; /* one after last char */ | |
45 | const char* grpbeg; /* 1st char of ()-group */ | |
46 | const char* grpend; /* end of ()-group */ | |
47 | I32 code; /* template code (!<>) */ | |
48 | I32 length; /* length/repeat count */ | |
49 | howlen_t howlen; /* how length is given */ | |
50 | int level; /* () nesting level */ | |
51 | U32 flags; /* /=4, comma=2, pack=1 */ | |
52 | /* and group modifiers */ | |
53 | STRLEN strbeg; /* offset of group start */ | |
54 | struct tempsym *previous; /* previous group */ | |
55 | } tempsym_t; | |
56 | ||
57 | #define TEMPSYM_INIT(symptr, p, e, f) \ | |
58 | STMT_START { \ | |
59 | (symptr)->patptr = (p); \ | |
60 | (symptr)->patend = (e); \ | |
61 | (symptr)->grpbeg = NULL; \ | |
62 | (symptr)->grpend = NULL; \ | |
63 | (symptr)->grpend = NULL; \ | |
64 | (symptr)->code = 0; \ | |
65 | (symptr)->length = 0; \ | |
10edeb5d | 66 | (symptr)->howlen = e_no_len; \ |
f7fe979e AL |
67 | (symptr)->level = 0; \ |
68 | (symptr)->flags = (f); \ | |
69 | (symptr)->strbeg = 0; \ | |
70 | (symptr)->previous = NULL; \ | |
71 | } STMT_END | |
72 | ||
7212898e | 73 | #if PERL_VERSION >= 9 |
f337b084 TH |
74 | # define PERL_PACK_CAN_BYTEORDER |
75 | # define PERL_PACK_CAN_SHRIEKSIGN | |
76 | #endif | |
77 | ||
78 | #ifndef CHAR_BIT | |
79 | # define CHAR_BIT 8 | |
7212898e | 80 | #endif |
3473cf63 RGS |
81 | /* Maximum number of bytes to which a byte can grow due to upgrade */ |
82 | #define UTF8_EXPAND 2 | |
7212898e | 83 | |
a6ec74c1 | 84 | /* |
a6ec74c1 JH |
85 | * Offset for integer pack/unpack. |
86 | * | |
87 | * On architectures where I16 and I32 aren't really 16 and 32 bits, | |
88 | * which for now are all Crays, pack and unpack have to play games. | |
89 | */ | |
90 | ||
91 | /* | |
92 | * These values are required for portability of pack() output. | |
93 | * If they're not right on your machine, then pack() and unpack() | |
94 | * wouldn't work right anyway; you'll need to apply the Cray hack. | |
95 | * (I'd like to check them with #if, but you can't use sizeof() in | |
96 | * the preprocessor.) --??? | |
97 | */ | |
98 | /* | |
99 | The appropriate SHORTSIZE, INTSIZE, LONGSIZE, and LONGLONGSIZE | |
100 | defines are now in config.h. --Andy Dougherty April 1998 | |
101 | */ | |
102 | #define SIZE16 2 | |
103 | #define SIZE32 4 | |
104 | ||
105 | /* CROSSCOMPILE and MULTIARCH are going to affect pp_pack() and pp_unpack(). | |
106 | --jhi Feb 1999 */ | |
107 | ||
1109a392 MHM |
108 | #if U16SIZE > SIZE16 || U32SIZE > SIZE32 |
109 | # if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678 /* little-endian */ | |
08ca2aa3 TH |
110 | # define OFF16(p) ((char*)(p)) |
111 | # define OFF32(p) ((char*)(p)) | |
a6ec74c1 | 112 | # else |
1109a392 | 113 | # if BYTEORDER == 0x4321 || BYTEORDER == 0x87654321 /* big-endian */ |
a6ec74c1 JH |
114 | # define OFF16(p) ((char*)(p) + (sizeof(U16) - SIZE16)) |
115 | # define OFF32(p) ((char*)(p) + (sizeof(U32) - SIZE32)) | |
116 | # else | |
08ca2aa3 | 117 | ++++ bad cray byte order |
a6ec74c1 JH |
118 | # endif |
119 | # endif | |
a6ec74c1 | 120 | #else |
08ca2aa3 TH |
121 | # define OFF16(p) ((char *) (p)) |
122 | # define OFF32(p) ((char *) (p)) | |
a6ec74c1 JH |
123 | #endif |
124 | ||
f337b084 TH |
125 | /* Only to be used inside a loop (see the break) */ |
126 | #define SHIFT16(utf8, s, strend, p, datumtype) STMT_START { \ | |
127 | if (utf8) { \ | |
128 | if (!uni_to_bytes(aTHX_ &(s), strend, OFF16(p), SIZE16, datumtype)) break; \ | |
129 | } else { \ | |
130 | Copy(s, OFF16(p), SIZE16, char); \ | |
131 | (s) += SIZE16; \ | |
132 | } \ | |
133 | } STMT_END | |
134 | ||
135 | /* Only to be used inside a loop (see the break) */ | |
136 | #define SHIFT32(utf8, s, strend, p, datumtype) STMT_START { \ | |
137 | if (utf8) { \ | |
138 | if (!uni_to_bytes(aTHX_ &(s), strend, OFF32(p), SIZE32, datumtype)) break; \ | |
139 | } else { \ | |
140 | Copy(s, OFF32(p), SIZE32, char); \ | |
141 | (s) += SIZE32; \ | |
142 | } \ | |
143 | } STMT_END | |
144 | ||
145 | #define PUSH16(utf8, cur, p) PUSH_BYTES(utf8, cur, OFF16(p), SIZE16) | |
146 | #define PUSH32(utf8, cur, p) PUSH_BYTES(utf8, cur, OFF32(p), SIZE32) | |
08ca2aa3 TH |
147 | |
148 | /* Only to be used inside a loop (see the break) */ | |
f337b084 | 149 | #define SHIFT_VAR(utf8, s, strend, var, datumtype) \ |
08ca2aa3 TH |
150 | STMT_START { \ |
151 | if (utf8) { \ | |
f337b084 TH |
152 | if (!uni_to_bytes(aTHX_ &s, strend, \ |
153 | (char *) &var, sizeof(var), datumtype)) break;\ | |
08ca2aa3 TH |
154 | } else { \ |
155 | Copy(s, (char *) &var, sizeof(var), char); \ | |
156 | s += sizeof(var); \ | |
157 | } \ | |
08ca2aa3 TH |
158 | } STMT_END |
159 | ||
f337b084 | 160 | #define PUSH_VAR(utf8, aptr, var) \ |
230e1fce | 161 | PUSH_BYTES(utf8, aptr, &(var), sizeof(var)) |
f337b084 | 162 | |
49704364 WL |
163 | /* Avoid stack overflow due to pathological templates. 100 should be plenty. */ |
164 | #define MAX_SUB_TEMPLATE_LEVEL 100 | |
165 | ||
66c611c5 | 166 | /* flags (note that type modifiers can also be used as flags!) */ |
f337b084 TH |
167 | #define FLAG_WAS_UTF8 0x40 |
168 | #define FLAG_PARSE_UTF8 0x20 /* Parse as utf8 */ | |
49704364 | 169 | #define FLAG_UNPACK_ONLY_ONE 0x10 |
f337b084 | 170 | #define FLAG_DO_UTF8 0x08 /* The underlying string is utf8 */ |
49704364 WL |
171 | #define FLAG_SLASH 0x04 |
172 | #define FLAG_COMMA 0x02 | |
173 | #define FLAG_PACK 0x01 | |
174 | ||
a6ec74c1 JH |
175 | STATIC SV * |
176 | S_mul128(pTHX_ SV *sv, U8 m) | |
177 | { | |
178 | STRLEN len; | |
179 | char *s = SvPV(sv, len); | |
180 | char *t; | |
a6ec74c1 | 181 | |
7918f24d NC |
182 | PERL_ARGS_ASSERT_MUL128; |
183 | ||
a6ec74c1 | 184 | if (!strnEQ(s, "0000", 4)) { /* need to grow sv */ |
396482e1 | 185 | SV * const tmpNew = newSVpvs("0000000000"); |
a6ec74c1 JH |
186 | |
187 | sv_catsv(tmpNew, sv); | |
188 | SvREFCNT_dec(sv); /* free old sv */ | |
189 | sv = tmpNew; | |
190 | s = SvPV(sv, len); | |
191 | } | |
192 | t = s + len - 1; | |
193 | while (!*t) /* trailing '\0'? */ | |
194 | t--; | |
195 | while (t > s) { | |
f7fe979e | 196 | const U32 i = ((*t - '0') << 7) + m; |
eb160463 GS |
197 | *(t--) = '0' + (char)(i % 10); |
198 | m = (char)(i / 10); | |
a6ec74c1 JH |
199 | } |
200 | return (sv); | |
201 | } | |
202 | ||
203 | /* Explosives and implosives. */ | |
204 | ||
205 | #if 'I' == 73 && 'J' == 74 | |
206 | /* On an ASCII/ISO kind of system */ | |
207 | #define ISUUCHAR(ch) ((ch) >= ' ' && (ch) < 'a') | |
208 | #else | |
209 | /* | |
210 | Some other sort of character set - use memchr() so we don't match | |
211 | the null byte. | |
212 | */ | |
213 | #define ISUUCHAR(ch) (memchr(PL_uuemap, (ch), sizeof(PL_uuemap)-1) || (ch) == ' ') | |
214 | #endif | |
215 | ||
66c611c5 | 216 | /* type modifiers */ |
62f95557 | 217 | #define TYPE_IS_SHRIEKING 0x100 |
1109a392 MHM |
218 | #define TYPE_IS_BIG_ENDIAN 0x200 |
219 | #define TYPE_IS_LITTLE_ENDIAN 0x400 | |
f337b084 | 220 | #define TYPE_IS_PACK 0x800 |
1109a392 | 221 | #define TYPE_ENDIANNESS_MASK (TYPE_IS_BIG_ENDIAN|TYPE_IS_LITTLE_ENDIAN) |
66c611c5 | 222 | #define TYPE_MODIFIERS(t) ((t) & ~0xFF) |
1109a392 MHM |
223 | #define TYPE_NO_MODIFIERS(t) ((t) & 0xFF) |
224 | ||
7212898e | 225 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
28be1210 | 226 | # define SHRIEKING_ALLOWED_TYPES "sSiIlLxXnNvV@." |
7212898e | 227 | #else |
28be1210 | 228 | # define SHRIEKING_ALLOWED_TYPES "sSiIlLxX" |
7212898e NC |
229 | #endif |
230 | ||
231 | #ifndef PERL_PACK_CAN_BYTEORDER | |
232 | /* Put "can't" first because it is shorter */ | |
233 | # define TYPE_ENDIANNESS(t) 0 | |
234 | # define TYPE_NO_ENDIANNESS(t) (t) | |
235 | ||
236 | # define ENDIANNESS_ALLOWED_TYPES "" | |
237 | ||
238 | # define DO_BO_UNPACK(var, type) | |
239 | # define DO_BO_PACK(var, type) | |
07409e01 NC |
240 | # define DO_BO_UNPACK_PTR(var, type, pre_cast, post_cast) |
241 | # define DO_BO_PACK_PTR(var, type, pre_cast, post_cast) | |
7212898e NC |
242 | # define DO_BO_UNPACK_N(var, type) |
243 | # define DO_BO_PACK_N(var, type) | |
244 | # define DO_BO_UNPACK_P(var) | |
245 | # define DO_BO_PACK_P(var) | |
45f723e1 NC |
246 | # define DO_BO_UNPACK_PC(var) |
247 | # define DO_BO_PACK_PC(var) | |
66c611c5 | 248 | |
f337b084 | 249 | #else /* PERL_PACK_CAN_BYTEORDER */ |
7212898e NC |
250 | |
251 | # define TYPE_ENDIANNESS(t) ((t) & TYPE_ENDIANNESS_MASK) | |
252 | # define TYPE_NO_ENDIANNESS(t) ((t) & ~TYPE_ENDIANNESS_MASK) | |
253 | ||
254 | # define ENDIANNESS_ALLOWED_TYPES "sSiIlLqQjJfFdDpP(" | |
255 | ||
256 | # define DO_BO_UNPACK(var, type) \ | |
1109a392 | 257 | STMT_START { \ |
66c611c5 | 258 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 MHM |
259 | case TYPE_IS_BIG_ENDIAN: var = my_betoh ## type (var); break; \ |
260 | case TYPE_IS_LITTLE_ENDIAN: var = my_letoh ## type (var); break; \ | |
261 | default: break; \ | |
262 | } \ | |
263 | } STMT_END | |
264 | ||
7212898e | 265 | # define DO_BO_PACK(var, type) \ |
1109a392 | 266 | STMT_START { \ |
66c611c5 | 267 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 MHM |
268 | case TYPE_IS_BIG_ENDIAN: var = my_htobe ## type (var); break; \ |
269 | case TYPE_IS_LITTLE_ENDIAN: var = my_htole ## type (var); break; \ | |
270 | default: break; \ | |
271 | } \ | |
272 | } STMT_END | |
273 | ||
07409e01 | 274 | # define DO_BO_UNPACK_PTR(var, type, pre_cast, post_cast) \ |
1109a392 | 275 | STMT_START { \ |
66c611c5 | 276 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 | 277 | case TYPE_IS_BIG_ENDIAN: \ |
07409e01 | 278 | var = (post_cast*) my_betoh ## type ((pre_cast) var); \ |
1109a392 MHM |
279 | break; \ |
280 | case TYPE_IS_LITTLE_ENDIAN: \ | |
07409e01 | 281 | var = (post_cast *) my_letoh ## type ((pre_cast) var); \ |
1109a392 MHM |
282 | break; \ |
283 | default: \ | |
284 | break; \ | |
285 | } \ | |
286 | } STMT_END | |
287 | ||
07409e01 | 288 | # define DO_BO_PACK_PTR(var, type, pre_cast, post_cast) \ |
1109a392 | 289 | STMT_START { \ |
66c611c5 | 290 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 | 291 | case TYPE_IS_BIG_ENDIAN: \ |
07409e01 | 292 | var = (post_cast *) my_htobe ## type ((pre_cast) var); \ |
1109a392 MHM |
293 | break; \ |
294 | case TYPE_IS_LITTLE_ENDIAN: \ | |
07409e01 | 295 | var = (post_cast *) my_htole ## type ((pre_cast) var); \ |
1109a392 MHM |
296 | break; \ |
297 | default: \ | |
298 | break; \ | |
299 | } \ | |
300 | } STMT_END | |
301 | ||
7212898e | 302 | # define BO_CANT_DOIT(action, type) \ |
66c611c5 MHM |
303 | STMT_START { \ |
304 | switch (TYPE_ENDIANNESS(datumtype)) { \ | |
1109a392 MHM |
305 | case TYPE_IS_BIG_ENDIAN: \ |
306 | Perl_croak(aTHX_ "Can't %s big-endian %ss on this " \ | |
307 | "platform", #action, #type); \ | |
308 | break; \ | |
309 | case TYPE_IS_LITTLE_ENDIAN: \ | |
310 | Perl_croak(aTHX_ "Can't %s little-endian %ss on this " \ | |
311 | "platform", #action, #type); \ | |
312 | break; \ | |
313 | default: \ | |
314 | break; \ | |
315 | } \ | |
316 | } STMT_END | |
317 | ||
7212898e | 318 | # if PTRSIZE == INTSIZE |
07409e01 NC |
319 | # define DO_BO_UNPACK_P(var) DO_BO_UNPACK_PTR(var, i, int, void) |
320 | # define DO_BO_PACK_P(var) DO_BO_PACK_PTR(var, i, int, void) | |
321 | # define DO_BO_UNPACK_PC(var) DO_BO_UNPACK_PTR(var, i, int, char) | |
322 | # define DO_BO_PACK_PC(var) DO_BO_PACK_PTR(var, i, int, char) | |
7212898e | 323 | # elif PTRSIZE == LONGSIZE |
fa58a56f S |
324 | # if LONGSIZE < IVSIZE && IVSIZE == 8 |
325 | # define DO_BO_UNPACK_P(var) DO_BO_UNPACK_PTR(var, 64, IV, void) | |
326 | # define DO_BO_PACK_P(var) DO_BO_PACK_PTR(var, 64, IV, void) | |
327 | # define DO_BO_UNPACK_PC(var) DO_BO_UNPACK_PTR(var, 64, IV, char) | |
328 | # define DO_BO_PACK_PC(var) DO_BO_PACK_PTR(var, 64, IV, char) | |
329 | # else | |
330 | # define DO_BO_UNPACK_P(var) DO_BO_UNPACK_PTR(var, l, IV, void) | |
331 | # define DO_BO_PACK_P(var) DO_BO_PACK_PTR(var, l, IV, void) | |
332 | # define DO_BO_UNPACK_PC(var) DO_BO_UNPACK_PTR(var, l, IV, char) | |
333 | # define DO_BO_PACK_PC(var) DO_BO_PACK_PTR(var, l, IV, char) | |
334 | # endif | |
2b00a750 JD |
335 | # elif PTRSIZE == IVSIZE |
336 | # define DO_BO_UNPACK_P(var) DO_BO_UNPACK_PTR(var, l, IV, void) | |
337 | # define DO_BO_PACK_P(var) DO_BO_PACK_PTR(var, l, IV, void) | |
338 | # define DO_BO_UNPACK_PC(var) DO_BO_UNPACK_PTR(var, l, IV, char) | |
339 | # define DO_BO_PACK_PC(var) DO_BO_PACK_PTR(var, l, IV, char) | |
7212898e NC |
340 | # else |
341 | # define DO_BO_UNPACK_P(var) BO_CANT_DOIT(unpack, pointer) | |
342 | # define DO_BO_PACK_P(var) BO_CANT_DOIT(pack, pointer) | |
45f723e1 NC |
343 | # define DO_BO_UNPACK_PC(var) BO_CANT_DOIT(unpack, pointer) |
344 | # define DO_BO_PACK_PC(var) BO_CANT_DOIT(pack, pointer) | |
7212898e | 345 | # endif |
1109a392 | 346 | |
7212898e | 347 | # if defined(my_htolen) && defined(my_letohn) && \ |
1109a392 | 348 | defined(my_htoben) && defined(my_betohn) |
7212898e | 349 | # define DO_BO_UNPACK_N(var, type) \ |
1109a392 | 350 | STMT_START { \ |
66c611c5 | 351 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 MHM |
352 | case TYPE_IS_BIG_ENDIAN: my_betohn(&var, sizeof(type)); break;\ |
353 | case TYPE_IS_LITTLE_ENDIAN: my_letohn(&var, sizeof(type)); break;\ | |
354 | default: break; \ | |
355 | } \ | |
356 | } STMT_END | |
357 | ||
7212898e | 358 | # define DO_BO_PACK_N(var, type) \ |
1109a392 | 359 | STMT_START { \ |
66c611c5 | 360 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 MHM |
361 | case TYPE_IS_BIG_ENDIAN: my_htoben(&var, sizeof(type)); break;\ |
362 | case TYPE_IS_LITTLE_ENDIAN: my_htolen(&var, sizeof(type)); break;\ | |
363 | default: break; \ | |
364 | } \ | |
365 | } STMT_END | |
7212898e NC |
366 | # else |
367 | # define DO_BO_UNPACK_N(var, type) BO_CANT_DOIT(unpack, type) | |
368 | # define DO_BO_PACK_N(var, type) BO_CANT_DOIT(pack, type) | |
369 | # endif | |
370 | ||
f337b084 | 371 | #endif /* PERL_PACK_CAN_BYTEORDER */ |
62f95557 | 372 | |
78d46eaa | 373 | #define PACK_SIZE_CANNOT_CSUM 0x80 |
f337b084 | 374 | #define PACK_SIZE_UNPREDICTABLE 0x40 /* Not a fixed size element */ |
78d46eaa NC |
375 | #define PACK_SIZE_MASK 0x3F |
376 | ||
78d46eaa NC |
377 | /* These tables are regenerated by genpacksizetables.pl (and then hand pasted |
378 | in). You're unlikely ever to need to regenerate them. */ | |
a7a3cfaa TH |
379 | |
380 | #if TYPE_IS_SHRIEKING != 0x100 | |
381 | ++++shriek offset should be 256 | |
382 | #endif | |
383 | ||
384 | typedef U8 packprops_t; | |
78d46eaa NC |
385 | #if 'J'-'I' == 1 |
386 | /* ASCII */ | |
f43a9a31 | 387 | STATIC const packprops_t packprops[512] = { |
a7a3cfaa TH |
388 | /* normal */ |
389 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
390 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
391 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
392 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
393 | 0, 0, 0, | |
1651fc44 | 394 | /* C */ sizeof(unsigned char), |
80a13697 | 395 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
a7a3cfaa | 396 | /* D */ LONG_DOUBLESIZE, |
80a13697 | 397 | #else |
a7a3cfaa | 398 | 0, |
80a13697 | 399 | #endif |
a7a3cfaa TH |
400 | 0, |
401 | /* F */ NVSIZE, | |
402 | 0, 0, | |
403 | /* I */ sizeof(unsigned int), | |
404 | /* J */ UVSIZE, | |
405 | 0, | |
406 | /* L */ SIZE32, | |
407 | 0, | |
408 | /* N */ SIZE32, | |
409 | 0, 0, | |
80a13697 | 410 | #if defined(HAS_QUAD) |
a7a3cfaa | 411 | /* Q */ sizeof(Uquad_t), |
80a13697 | 412 | #else |
a7a3cfaa | 413 | 0, |
80a13697 | 414 | #endif |
a7a3cfaa TH |
415 | 0, |
416 | /* S */ SIZE16, | |
417 | 0, | |
418 | /* U */ sizeof(char) | PACK_SIZE_UNPREDICTABLE, | |
419 | /* V */ SIZE32, | |
420 | /* W */ sizeof(unsigned char) | PACK_SIZE_UNPREDICTABLE, | |
421 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
422 | /* c */ sizeof(char), | |
423 | /* d */ sizeof(double), | |
424 | 0, | |
425 | /* f */ sizeof(float), | |
426 | 0, 0, | |
427 | /* i */ sizeof(int), | |
428 | /* j */ IVSIZE, | |
429 | 0, | |
430 | /* l */ SIZE32, | |
431 | 0, | |
432 | /* n */ SIZE16, | |
433 | 0, | |
434 | /* p */ sizeof(char *) | PACK_SIZE_CANNOT_CSUM, | |
80a13697 | 435 | #if defined(HAS_QUAD) |
a7a3cfaa | 436 | /* q */ sizeof(Quad_t), |
80a13697 | 437 | #else |
a7a3cfaa | 438 | 0, |
80a13697 | 439 | #endif |
a7a3cfaa TH |
440 | 0, |
441 | /* s */ SIZE16, | |
442 | 0, 0, | |
443 | /* v */ SIZE16, | |
444 | /* w */ sizeof(char) | PACK_SIZE_UNPREDICTABLE | PACK_SIZE_CANNOT_CSUM, | |
445 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
446 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
447 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
448 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
449 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
450 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
451 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
452 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
453 | 0, 0, 0, 0, 0, 0, 0, 0, | |
454 | /* shrieking */ | |
455 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
456 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
457 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
458 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
459 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
460 | /* I */ sizeof(unsigned int), | |
461 | 0, 0, | |
462 | /* L */ sizeof(unsigned long), | |
463 | 0, | |
7212898e | 464 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
a7a3cfaa | 465 | /* N */ SIZE32, |
7212898e | 466 | #else |
a7a3cfaa | 467 | 0, |
7212898e | 468 | #endif |
a7a3cfaa TH |
469 | 0, 0, 0, 0, |
470 | /* S */ sizeof(unsigned short), | |
471 | 0, 0, | |
7212898e | 472 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
a7a3cfaa | 473 | /* V */ SIZE32, |
7212898e | 474 | #else |
a7a3cfaa | 475 | 0, |
7212898e | 476 | #endif |
a7a3cfaa TH |
477 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
478 | 0, 0, | |
479 | /* i */ sizeof(int), | |
480 | 0, 0, | |
481 | /* l */ sizeof(long), | |
482 | 0, | |
7212898e | 483 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
a7a3cfaa | 484 | /* n */ SIZE16, |
7212898e | 485 | #else |
a7a3cfaa | 486 | 0, |
7212898e | 487 | #endif |
a7a3cfaa TH |
488 | 0, 0, 0, 0, |
489 | /* s */ sizeof(short), | |
490 | 0, 0, | |
7212898e | 491 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
a7a3cfaa | 492 | /* v */ SIZE16, |
7212898e | 493 | #else |
a7a3cfaa | 494 | 0, |
7212898e | 495 | #endif |
a7a3cfaa TH |
496 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
497 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
498 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
499 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
500 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
501 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
502 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
503 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
504 | 0, 0, 0, 0, 0, 0, 0, 0, 0 | |
78d46eaa NC |
505 | }; |
506 | #else | |
507 | /* EBCDIC (or bust) */ | |
f43a9a31 | 508 | STATIC const packprops_t packprops[512] = { |
a7a3cfaa TH |
509 | /* normal */ |
510 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
511 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
512 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
513 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
514 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
515 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
516 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
517 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
518 | 0, 0, 0, | |
519 | /* c */ sizeof(char), | |
520 | /* d */ sizeof(double), | |
521 | 0, | |
522 | /* f */ sizeof(float), | |
523 | 0, 0, | |
524 | /* i */ sizeof(int), | |
525 | 0, 0, 0, 0, 0, 0, 0, | |
526 | /* j */ IVSIZE, | |
527 | 0, | |
528 | /* l */ SIZE32, | |
529 | 0, | |
530 | /* n */ SIZE16, | |
531 | 0, | |
532 | /* p */ sizeof(char *) | PACK_SIZE_CANNOT_CSUM, | |
80a13697 | 533 | #if defined(HAS_QUAD) |
a7a3cfaa | 534 | /* q */ sizeof(Quad_t), |
80a13697 | 535 | #else |
a7a3cfaa | 536 | 0, |
80a13697 | 537 | #endif |
a7a3cfaa TH |
538 | 0, 0, 0, 0, 0, 0, 0, 0, 0, |
539 | /* s */ SIZE16, | |
540 | 0, 0, | |
541 | /* v */ SIZE16, | |
542 | /* w */ sizeof(char) | PACK_SIZE_UNPREDICTABLE | PACK_SIZE_CANNOT_CSUM, | |
543 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
544 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
1651fc44 | 545 | /* C */ sizeof(unsigned char), |
80a13697 | 546 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
a7a3cfaa | 547 | /* D */ LONG_DOUBLESIZE, |
80a13697 | 548 | #else |
a7a3cfaa | 549 | 0, |
80a13697 | 550 | #endif |
a7a3cfaa TH |
551 | 0, |
552 | /* F */ NVSIZE, | |
553 | 0, 0, | |
554 | /* I */ sizeof(unsigned int), | |
555 | 0, 0, 0, 0, 0, 0, 0, | |
556 | /* J */ UVSIZE, | |
557 | 0, | |
558 | /* L */ SIZE32, | |
559 | 0, | |
560 | /* N */ SIZE32, | |
561 | 0, 0, | |
80a13697 | 562 | #if defined(HAS_QUAD) |
a7a3cfaa | 563 | /* Q */ sizeof(Uquad_t), |
80a13697 | 564 | #else |
a7a3cfaa | 565 | 0, |
80a13697 | 566 | #endif |
a7a3cfaa TH |
567 | 0, 0, 0, 0, 0, 0, 0, 0, 0, |
568 | /* S */ SIZE16, | |
569 | 0, | |
570 | /* U */ sizeof(char) | PACK_SIZE_UNPREDICTABLE, | |
571 | /* V */ SIZE32, | |
572 | /* W */ sizeof(unsigned char) | PACK_SIZE_UNPREDICTABLE, | |
573 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
574 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
575 | /* shrieking */ | |
576 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
577 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
578 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
579 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
580 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
581 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
582 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
583 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
584 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
585 | /* i */ sizeof(int), | |
586 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
587 | /* l */ sizeof(long), | |
588 | 0, | |
7212898e | 589 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
a7a3cfaa | 590 | /* n */ SIZE16, |
7212898e | 591 | #else |
a7a3cfaa | 592 | 0, |
7212898e | 593 | #endif |
a7a3cfaa TH |
594 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
595 | /* s */ sizeof(short), | |
596 | 0, 0, | |
7212898e | 597 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
a7a3cfaa | 598 | /* v */ SIZE16, |
7212898e | 599 | #else |
a7a3cfaa | 600 | 0, |
7212898e | 601 | #endif |
a7a3cfaa TH |
602 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
603 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
604 | 0, 0, 0, | |
605 | /* I */ sizeof(unsigned int), | |
606 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
607 | /* L */ sizeof(unsigned long), | |
608 | 0, | |
7212898e | 609 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
a7a3cfaa | 610 | /* N */ SIZE32, |
7212898e | 611 | #else |
a7a3cfaa | 612 | 0, |
7212898e | 613 | #endif |
a7a3cfaa TH |
614 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
615 | /* S */ sizeof(unsigned short), | |
616 | 0, 0, | |
7212898e | 617 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
a7a3cfaa | 618 | /* V */ SIZE32, |
7212898e | 619 | #else |
a7a3cfaa | 620 | 0, |
7212898e | 621 | #endif |
a7a3cfaa TH |
622 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
623 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 | |
78d46eaa NC |
624 | }; |
625 | #endif | |
626 | ||
08ca2aa3 | 627 | STATIC U8 |
f7fe979e | 628 | uni_to_byte(pTHX_ const char **s, const char *end, I32 datumtype) |
08ca2aa3 | 629 | { |
08ca2aa3 | 630 | STRLEN retlen; |
0bcc34c2 | 631 | UV val = utf8n_to_uvchr((U8 *) *s, end-*s, &retlen, |
f337b084 | 632 | ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANY); |
08ca2aa3 TH |
633 | /* We try to process malformed UTF-8 as much as possible (preferrably with |
634 | warnings), but these two mean we make no progress in the string and | |
635 | might enter an infinite loop */ | |
636 | if (retlen == (STRLEN) -1 || retlen == 0) | |
f337b084 TH |
637 | Perl_croak(aTHX_ "Malformed UTF-8 string in '%c' format in unpack", |
638 | (int) TYPE_NO_MODIFIERS(datumtype)); | |
08ca2aa3 | 639 | if (val >= 0x100) { |
a2a5de95 NC |
640 | Perl_ck_warner(aTHX_ packWARN(WARN_UNPACK), |
641 | "Character in '%c' format wrapped in unpack", | |
642 | (int) TYPE_NO_MODIFIERS(datumtype)); | |
08ca2aa3 TH |
643 | val &= 0xff; |
644 | } | |
645 | *s += retlen; | |
fe2774ed | 646 | return (U8)val; |
08ca2aa3 TH |
647 | } |
648 | ||
f337b084 TH |
649 | #define SHIFT_BYTE(utf8, s, strend, datumtype) ((utf8) ? \ |
650 | uni_to_byte(aTHX_ &(s), (strend), (datumtype)) : \ | |
08ca2aa3 TH |
651 | *(U8 *)(s)++) |
652 | ||
653 | STATIC bool | |
f7fe979e | 654 | uni_to_bytes(pTHX_ const char **s, const char *end, const char *buf, int buf_len, I32 datumtype) |
08ca2aa3 TH |
655 | { |
656 | UV val; | |
657 | STRLEN retlen; | |
f7fe979e | 658 | const char *from = *s; |
08ca2aa3 | 659 | int bad = 0; |
f7fe979e | 660 | const U32 flags = ckWARN(WARN_UTF8) ? |
08ca2aa3 TH |
661 | UTF8_CHECK_ONLY : (UTF8_CHECK_ONLY | UTF8_ALLOW_ANY); |
662 | for (;buf_len > 0; buf_len--) { | |
663 | if (from >= end) return FALSE; | |
f337b084 | 664 | val = utf8n_to_uvchr((U8 *) from, end-from, &retlen, flags); |
08ca2aa3 TH |
665 | if (retlen == (STRLEN) -1 || retlen == 0) { |
666 | from += UTF8SKIP(from); | |
667 | bad |= 1; | |
668 | } else from += retlen; | |
669 | if (val >= 0x100) { | |
670 | bad |= 2; | |
671 | val &= 0xff; | |
672 | } | |
fe2774ed | 673 | *(U8 *)buf++ = (U8)val; |
08ca2aa3 TH |
674 | } |
675 | /* We have enough characters for the buffer. Did we have problems ? */ | |
676 | if (bad) { | |
677 | if (bad & 1) { | |
678 | /* Rewalk the string fragment while warning */ | |
f7fe979e | 679 | const char *ptr; |
9e27e96a | 680 | const int flags = ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANY; |
08ca2aa3 TH |
681 | for (ptr = *s; ptr < from; ptr += UTF8SKIP(ptr)) { |
682 | if (ptr >= end) break; | |
f337b084 | 683 | utf8n_to_uvuni((U8 *) ptr, end-ptr, &retlen, flags); |
08ca2aa3 TH |
684 | } |
685 | if (from > end) from = end; | |
686 | } | |
a2a5de95 NC |
687 | if ((bad & 2)) |
688 | Perl_ck_warner(aTHX_ packWARN(datumtype & TYPE_IS_PACK ? | |
f337b084 | 689 | WARN_PACK : WARN_UNPACK), |
a2a5de95 NC |
690 | "Character(s) in '%c' format wrapped in %s", |
691 | (int) TYPE_NO_MODIFIERS(datumtype), | |
692 | datumtype & TYPE_IS_PACK ? "pack" : "unpack"); | |
08ca2aa3 TH |
693 | } |
694 | *s = from; | |
695 | return TRUE; | |
696 | } | |
697 | ||
698 | STATIC bool | |
f7fe979e | 699 | next_uni_uu(pTHX_ const char **s, const char *end, I32 *out) |
08ca2aa3 | 700 | { |
97aff369 | 701 | dVAR; |
08ca2aa3 | 702 | STRLEN retlen; |
0bcc34c2 | 703 | const UV val = utf8n_to_uvchr((U8 *) *s, end-*s, &retlen, UTF8_CHECK_ONLY); |
08ca2aa3 TH |
704 | if (val >= 0x100 || !ISUUCHAR(val) || |
705 | retlen == (STRLEN) -1 || retlen == 0) { | |
706 | *out = 0; | |
707 | return FALSE; | |
708 | } | |
709 | *out = PL_uudmap[val] & 077; | |
f337b084 | 710 | *s += retlen; |
08ca2aa3 TH |
711 | return TRUE; |
712 | } | |
78d46eaa | 713 | |
64844641 | 714 | STATIC char * |
14333449 | 715 | S_bytes_to_uni(const U8 *start, STRLEN len, char *dest) { |
0bcc34c2 | 716 | const U8 * const end = start + len; |
64844641 | 717 | |
7918f24d NC |
718 | PERL_ARGS_ASSERT_BYTES_TO_UNI; |
719 | ||
f337b084 | 720 | while (start < end) { |
48fa4626 TS |
721 | const UV uv = NATIVE_TO_ASCII(*start); |
722 | if (UNI_IS_INVARIANT(uv)) | |
723 | *dest++ = (char)(U8)UTF_TO_NATIVE(uv); | |
724 | else { | |
725 | *dest++ = (char)(U8)UTF8_EIGHT_BIT_HI(uv); | |
726 | *dest++ = (char)(U8)UTF8_EIGHT_BIT_LO(uv); | |
f337b084 TH |
727 | } |
728 | start++; | |
729 | } | |
64844641 | 730 | return dest; |
f337b084 TH |
731 | } |
732 | ||
230e1fce NC |
733 | #define PUSH_BYTES(utf8, cur, buf, len) \ |
734 | STMT_START { \ | |
64844641 AL |
735 | if (utf8) \ |
736 | (cur) = bytes_to_uni((U8 *) buf, len, (cur)); \ | |
230e1fce NC |
737 | else { \ |
738 | Copy(buf, cur, len, char); \ | |
739 | (cur) += (len); \ | |
740 | } \ | |
f337b084 TH |
741 | } STMT_END |
742 | ||
743 | #define GROWING(utf8, cat, start, cur, in_len) \ | |
744 | STMT_START { \ | |
745 | STRLEN glen = (in_len); \ | |
3473cf63 | 746 | if (utf8) glen *= UTF8_EXPAND; \ |
f337b084 | 747 | if ((cur) + glen >= (start) + SvLEN(cat)) { \ |
0bd48802 | 748 | (start) = sv_exp_grow(cat, glen); \ |
f337b084 TH |
749 | (cur) = (start) + SvCUR(cat); \ |
750 | } \ | |
751 | } STMT_END | |
752 | ||
753 | #define PUSH_GROWING_BYTES(utf8, cat, start, cur, buf, in_len) \ | |
754 | STMT_START { \ | |
f7fe979e | 755 | const STRLEN glen = (in_len); \ |
f337b084 | 756 | STRLEN gl = glen; \ |
3473cf63 | 757 | if (utf8) gl *= UTF8_EXPAND; \ |
f337b084 TH |
758 | if ((cur) + gl >= (start) + SvLEN(cat)) { \ |
759 | *cur = '\0'; \ | |
b162af07 | 760 | SvCUR_set((cat), (cur) - (start)); \ |
0bd48802 | 761 | (start) = sv_exp_grow(cat, gl); \ |
f337b084 TH |
762 | (cur) = (start) + SvCUR(cat); \ |
763 | } \ | |
764 | PUSH_BYTES(utf8, cur, buf, glen); \ | |
765 | } STMT_END | |
766 | ||
767 | #define PUSH_BYTE(utf8, s, byte) \ | |
768 | STMT_START { \ | |
769 | if (utf8) { \ | |
f7fe979e | 770 | const U8 au8 = (byte); \ |
64844641 | 771 | (s) = bytes_to_uni(&au8, 1, (s)); \ |
f337b084 TH |
772 | } else *(U8 *)(s)++ = (byte); \ |
773 | } STMT_END | |
774 | ||
775 | /* Only to be used inside a loop (see the break) */ | |
776 | #define NEXT_UNI_VAL(val, cur, str, end, utf8_flags) \ | |
777 | STMT_START { \ | |
778 | STRLEN retlen; \ | |
779 | if (str >= end) break; \ | |
780 | val = utf8n_to_uvchr((U8 *) str, end-str, &retlen, utf8_flags); \ | |
781 | if (retlen == (STRLEN) -1 || retlen == 0) { \ | |
782 | *cur = '\0'; \ | |
783 | Perl_croak(aTHX_ "Malformed UTF-8 string in pack"); \ | |
784 | } \ | |
785 | str += retlen; \ | |
786 | } STMT_END | |
787 | ||
f7fe979e AL |
788 | static const char *_action( const tempsym_t* symptr ) |
789 | { | |
10edeb5d | 790 | return (const char *)(( symptr->flags & FLAG_PACK ) ? "pack" : "unpack"); |
f7fe979e AL |
791 | } |
792 | ||
206947d2 | 793 | /* Returns the sizeof() struct described by pat */ |
028d1f6d | 794 | STATIC I32 |
f337b084 | 795 | S_measure_struct(pTHX_ tempsym_t* symptr) |
206947d2 | 796 | { |
f337b084 | 797 | I32 total = 0; |
206947d2 | 798 | |
7918f24d NC |
799 | PERL_ARGS_ASSERT_MEASURE_STRUCT; |
800 | ||
49704364 | 801 | while (next_symbol(symptr)) { |
f337b084 | 802 | I32 len; |
f7fe979e | 803 | int size; |
f337b084 TH |
804 | |
805 | switch (symptr->howlen) { | |
fc241834 | 806 | case e_star: |
49704364 | 807 | Perl_croak(aTHX_ "Within []-length '*' not allowed in %s", |
f7fe979e | 808 | _action( symptr ) ); |
49704364 | 809 | break; |
f337b084 TH |
810 | default: |
811 | /* e_no_len and e_number */ | |
812 | len = symptr->length; | |
813 | break; | |
49704364 WL |
814 | } |
815 | ||
a7a3cfaa | 816 | size = packprops[TYPE_NO_ENDIANNESS(symptr->code)] & PACK_SIZE_MASK; |
80a13697 | 817 | if (!size) { |
f7fe979e | 818 | int star; |
80a13697 NC |
819 | /* endianness doesn't influence the size of a type */ |
820 | switch(TYPE_NO_ENDIANNESS(symptr->code)) { | |
821 | default: | |
822 | Perl_croak(aTHX_ "Invalid type '%c' in %s", | |
823 | (int)TYPE_NO_MODIFIERS(symptr->code), | |
f7fe979e | 824 | _action( symptr ) ); |
28be1210 TH |
825 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
826 | case '.' | TYPE_IS_SHRIEKING: | |
827 | case '@' | TYPE_IS_SHRIEKING: | |
828 | #endif | |
80a13697 | 829 | case '@': |
28be1210 | 830 | case '.': |
80a13697 NC |
831 | case '/': |
832 | case 'U': /* XXXX Is it correct? */ | |
833 | case 'w': | |
834 | case 'u': | |
835 | Perl_croak(aTHX_ "Within []-length '%c' not allowed in %s", | |
28be1210 | 836 | (int) TYPE_NO_MODIFIERS(symptr->code), |
f7fe979e | 837 | _action( symptr ) ); |
80a13697 NC |
838 | case '%': |
839 | size = 0; | |
840 | break; | |
841 | case '(': | |
fc241834 RGS |
842 | { |
843 | tempsym_t savsym = *symptr; | |
844 | symptr->patptr = savsym.grpbeg; | |
845 | symptr->patend = savsym.grpend; | |
846 | /* XXXX Theoretically, we need to measure many times at | |
847 | different positions, since the subexpression may contain | |
848 | alignment commands, but be not of aligned length. | |
849 | Need to detect this and croak(). */ | |
850 | size = measure_struct(symptr); | |
851 | *symptr = savsym; | |
852 | break; | |
853 | } | |
80a13697 NC |
854 | case 'X' | TYPE_IS_SHRIEKING: |
855 | /* XXXX Is this useful? Then need to treat MEASURE_BACKWARDS. | |
856 | */ | |
857 | if (!len) /* Avoid division by 0 */ | |
858 | len = 1; | |
859 | len = total % len; /* Assumed: the start is aligned. */ | |
860 | /* FALL THROUGH */ | |
861 | case 'X': | |
862 | size = -1; | |
863 | if (total < len) | |
f7fe979e | 864 | Perl_croak(aTHX_ "'X' outside of string in %s", _action( symptr ) ); |
80a13697 NC |
865 | break; |
866 | case 'x' | TYPE_IS_SHRIEKING: | |
867 | if (!len) /* Avoid division by 0 */ | |
868 | len = 1; | |
869 | star = total % len; /* Assumed: the start is aligned. */ | |
870 | if (star) /* Other portable ways? */ | |
871 | len = len - star; | |
872 | else | |
873 | len = 0; | |
874 | /* FALL THROUGH */ | |
875 | case 'x': | |
876 | case 'A': | |
877 | case 'Z': | |
878 | case 'a': | |
80a13697 NC |
879 | size = 1; |
880 | break; | |
881 | case 'B': | |
882 | case 'b': | |
883 | len = (len + 7)/8; | |
884 | size = 1; | |
885 | break; | |
886 | case 'H': | |
887 | case 'h': | |
888 | len = (len + 1)/2; | |
889 | size = 1; | |
890 | break; | |
78d46eaa | 891 | |
80a13697 NC |
892 | case 'P': |
893 | len = 1; | |
894 | size = sizeof(char*); | |
78d46eaa NC |
895 | break; |
896 | } | |
206947d2 IZ |
897 | } |
898 | total += len * size; | |
899 | } | |
900 | return total; | |
901 | } | |
902 | ||
49704364 WL |
903 | |
904 | /* locate matching closing parenthesis or bracket | |
905 | * returns char pointer to char after match, or NULL | |
906 | */ | |
f7fe979e AL |
907 | STATIC const char * |
908 | S_group_end(pTHX_ register const char *patptr, register const char *patend, char ender) | |
18529408 | 909 | { |
7918f24d NC |
910 | PERL_ARGS_ASSERT_GROUP_END; |
911 | ||
49704364 | 912 | while (patptr < patend) { |
f7fe979e | 913 | const char c = *patptr++; |
49704364 WL |
914 | |
915 | if (isSPACE(c)) | |
916 | continue; | |
917 | else if (c == ender) | |
918 | return patptr-1; | |
919 | else if (c == '#') { | |
920 | while (patptr < patend && *patptr != '\n') | |
921 | patptr++; | |
922 | continue; | |
923 | } else if (c == '(') | |
924 | patptr = group_end(patptr, patend, ')') + 1; | |
925 | else if (c == '[') | |
926 | patptr = group_end(patptr, patend, ']') + 1; | |
18529408 | 927 | } |
49704364 WL |
928 | Perl_croak(aTHX_ "No group ending character '%c' found in template", |
929 | ender); | |
930 | return 0; | |
18529408 IZ |
931 | } |
932 | ||
49704364 WL |
933 | |
934 | /* Convert unsigned decimal number to binary. | |
935 | * Expects a pointer to the first digit and address of length variable | |
936 | * Advances char pointer to 1st non-digit char and returns number | |
fc241834 | 937 | */ |
f7fe979e AL |
938 | STATIC const char * |
939 | S_get_num(pTHX_ register const char *patptr, I32 *lenptr ) | |
49704364 WL |
940 | { |
941 | I32 len = *patptr++ - '0'; | |
7918f24d NC |
942 | |
943 | PERL_ARGS_ASSERT_GET_NUM; | |
944 | ||
49704364 WL |
945 | while (isDIGIT(*patptr)) { |
946 | if (len >= 0x7FFFFFFF/10) | |
947 | Perl_croak(aTHX_ "pack/unpack repeat count overflow"); | |
948 | len = (len * 10) + (*patptr++ - '0'); | |
949 | } | |
950 | *lenptr = len; | |
951 | return patptr; | |
952 | } | |
953 | ||
954 | /* The marvellous template parsing routine: Using state stored in *symptr, | |
955 | * locates next template code and count | |
956 | */ | |
957 | STATIC bool | |
f337b084 | 958 | S_next_symbol(pTHX_ tempsym_t* symptr ) |
18529408 | 959 | { |
f7fe979e | 960 | const char* patptr = symptr->patptr; |
0bcc34c2 | 961 | const char* const patend = symptr->patend; |
49704364 | 962 | |
7918f24d NC |
963 | PERL_ARGS_ASSERT_NEXT_SYMBOL; |
964 | ||
49704364 WL |
965 | symptr->flags &= ~FLAG_SLASH; |
966 | ||
967 | while (patptr < patend) { | |
968 | if (isSPACE(*patptr)) | |
969 | patptr++; | |
970 | else if (*patptr == '#') { | |
971 | patptr++; | |
972 | while (patptr < patend && *patptr != '\n') | |
973 | patptr++; | |
974 | if (patptr < patend) | |
975 | patptr++; | |
976 | } else { | |
fc241834 | 977 | /* We should have found a template code */ |
49704364 | 978 | I32 code = *patptr++ & 0xFF; |
66c611c5 | 979 | U32 inherited_modifiers = 0; |
49704364 WL |
980 | |
981 | if (code == ','){ /* grandfather in commas but with a warning */ | |
982 | if (((symptr->flags & FLAG_COMMA) == 0) && ckWARN(WARN_UNPACK)){ | |
983 | symptr->flags |= FLAG_COMMA; | |
984 | Perl_warner(aTHX_ packWARN(WARN_UNPACK), | |
f7fe979e | 985 | "Invalid type ',' in %s", _action( symptr ) ); |
49704364 WL |
986 | } |
987 | continue; | |
988 | } | |
fc241834 | 989 | |
49704364 | 990 | /* for '(', skip to ')' */ |
fc241834 | 991 | if (code == '(') { |
49704364 WL |
992 | if( isDIGIT(*patptr) || *patptr == '*' || *patptr == '[' ) |
993 | Perl_croak(aTHX_ "()-group starts with a count in %s", | |
f7fe979e | 994 | _action( symptr ) ); |
49704364 WL |
995 | symptr->grpbeg = patptr; |
996 | patptr = 1 + ( symptr->grpend = group_end(patptr, patend, ')') ); | |
997 | if( symptr->level >= MAX_SUB_TEMPLATE_LEVEL ) | |
998 | Perl_croak(aTHX_ "Too deeply nested ()-groups in %s", | |
f7fe979e | 999 | _action( symptr ) ); |
49704364 WL |
1000 | } |
1001 | ||
66c611c5 MHM |
1002 | /* look for group modifiers to inherit */ |
1003 | if (TYPE_ENDIANNESS(symptr->flags)) { | |
1004 | if (strchr(ENDIANNESS_ALLOWED_TYPES, TYPE_NO_MODIFIERS(code))) | |
1005 | inherited_modifiers |= TYPE_ENDIANNESS(symptr->flags); | |
1006 | } | |
1007 | ||
1109a392 MHM |
1008 | /* look for modifiers */ |
1009 | while (patptr < patend) { | |
b7787f18 AL |
1010 | const char *allowed; |
1011 | I32 modifier; | |
1109a392 MHM |
1012 | switch (*patptr) { |
1013 | case '!': | |
1014 | modifier = TYPE_IS_SHRIEKING; | |
7212898e | 1015 | allowed = SHRIEKING_ALLOWED_TYPES; |
1109a392 | 1016 | break; |
7212898e | 1017 | #ifdef PERL_PACK_CAN_BYTEORDER |
1109a392 MHM |
1018 | case '>': |
1019 | modifier = TYPE_IS_BIG_ENDIAN; | |
66c611c5 | 1020 | allowed = ENDIANNESS_ALLOWED_TYPES; |
1109a392 MHM |
1021 | break; |
1022 | case '<': | |
1023 | modifier = TYPE_IS_LITTLE_ENDIAN; | |
66c611c5 | 1024 | allowed = ENDIANNESS_ALLOWED_TYPES; |
1109a392 | 1025 | break; |
f337b084 | 1026 | #endif /* PERL_PACK_CAN_BYTEORDER */ |
1109a392 | 1027 | default: |
b7787f18 AL |
1028 | allowed = ""; |
1029 | modifier = 0; | |
1109a392 MHM |
1030 | break; |
1031 | } | |
66c611c5 | 1032 | |
1109a392 MHM |
1033 | if (modifier == 0) |
1034 | break; | |
66c611c5 | 1035 | |
1109a392 MHM |
1036 | if (!strchr(allowed, TYPE_NO_MODIFIERS(code))) |
1037 | Perl_croak(aTHX_ "'%c' allowed only after types %s in %s", *patptr, | |
f7fe979e | 1038 | allowed, _action( symptr ) ); |
66c611c5 MHM |
1039 | |
1040 | if (TYPE_ENDIANNESS(code | modifier) == TYPE_ENDIANNESS_MASK) | |
1109a392 | 1041 | Perl_croak(aTHX_ "Can't use both '<' and '>' after type '%c' in %s", |
f7fe979e | 1042 | (int) TYPE_NO_MODIFIERS(code), _action( symptr ) ); |
66c611c5 MHM |
1043 | else if (TYPE_ENDIANNESS(code | modifier | inherited_modifiers) == |
1044 | TYPE_ENDIANNESS_MASK) | |
1045 | Perl_croak(aTHX_ "Can't use '%c' in a group with different byte-order in %s", | |
f7fe979e | 1046 | *patptr, _action( symptr ) ); |
66c611c5 | 1047 | |
a2a5de95 NC |
1048 | if ((code & modifier)) { |
1049 | Perl_ck_warner(aTHX_ packWARN(WARN_UNPACK), | |
1050 | "Duplicate modifier '%c' after '%c' in %s", | |
1051 | *patptr, (int) TYPE_NO_MODIFIERS(code), | |
1052 | _action( symptr ) ); | |
1109a392 | 1053 | } |
66c611c5 | 1054 | |
1109a392 MHM |
1055 | code |= modifier; |
1056 | patptr++; | |
49704364 WL |
1057 | } |
1058 | ||
66c611c5 MHM |
1059 | /* inherit modifiers */ |
1060 | code |= inherited_modifiers; | |
1061 | ||
fc241834 | 1062 | /* look for count and/or / */ |
49704364 WL |
1063 | if (patptr < patend) { |
1064 | if (isDIGIT(*patptr)) { | |
1065 | patptr = get_num( patptr, &symptr->length ); | |
1066 | symptr->howlen = e_number; | |
1067 | ||
1068 | } else if (*patptr == '*') { | |
1069 | patptr++; | |
1070 | symptr->howlen = e_star; | |
1071 | ||
1072 | } else if (*patptr == '[') { | |
f7fe979e | 1073 | const char* lenptr = ++patptr; |
49704364 WL |
1074 | symptr->howlen = e_number; |
1075 | patptr = group_end( patptr, patend, ']' ) + 1; | |
1076 | /* what kind of [] is it? */ | |
1077 | if (isDIGIT(*lenptr)) { | |
1078 | lenptr = get_num( lenptr, &symptr->length ); | |
1079 | if( *lenptr != ']' ) | |
1080 | Perl_croak(aTHX_ "Malformed integer in [] in %s", | |
f7fe979e | 1081 | _action( symptr ) ); |
49704364 WL |
1082 | } else { |
1083 | tempsym_t savsym = *symptr; | |
1084 | symptr->patend = patptr-1; | |
1085 | symptr->patptr = lenptr; | |
1086 | savsym.length = measure_struct(symptr); | |
1087 | *symptr = savsym; | |
1088 | } | |
1089 | } else { | |
1090 | symptr->howlen = e_no_len; | |
1091 | symptr->length = 1; | |
1092 | } | |
1093 | ||
1094 | /* try to find / */ | |
1095 | while (patptr < patend) { | |
1096 | if (isSPACE(*patptr)) | |
1097 | patptr++; | |
1098 | else if (*patptr == '#') { | |
1099 | patptr++; | |
1100 | while (patptr < patend && *patptr != '\n') | |
1101 | patptr++; | |
1102 | if (patptr < patend) | |
1103 | patptr++; | |
1104 | } else { | |
66c611c5 | 1105 | if (*patptr == '/') { |
49704364 WL |
1106 | symptr->flags |= FLAG_SLASH; |
1107 | patptr++; | |
66c611c5 MHM |
1108 | if (patptr < patend && |
1109 | (isDIGIT(*patptr) || *patptr == '*' || *patptr == '[')) | |
49704364 | 1110 | Perl_croak(aTHX_ "'/' does not take a repeat count in %s", |
f7fe979e | 1111 | _action( symptr ) ); |
49704364 WL |
1112 | } |
1113 | break; | |
1114 | } | |
18529408 | 1115 | } |
49704364 WL |
1116 | } else { |
1117 | /* at end - no count, no / */ | |
1118 | symptr->howlen = e_no_len; | |
1119 | symptr->length = 1; | |
1120 | } | |
1121 | ||
1122 | symptr->code = code; | |
fc241834 | 1123 | symptr->patptr = patptr; |
49704364 | 1124 | return TRUE; |
18529408 | 1125 | } |
49704364 | 1126 | } |
fc241834 | 1127 | symptr->patptr = patptr; |
49704364 | 1128 | return FALSE; |
18529408 IZ |
1129 | } |
1130 | ||
18529408 | 1131 | /* |
fc241834 | 1132 | There is no way to cleanly handle the case where we should process the |
08ca2aa3 | 1133 | string per byte in its upgraded form while it's really in downgraded form |
fc241834 RGS |
1134 | (e.g. estimates like strend-s as an upper bound for the number of |
1135 | characters left wouldn't work). So if we foresee the need of this | |
1136 | (pattern starts with U or contains U0), we want to work on the encoded | |
1137 | version of the string. Users are advised to upgrade their pack string | |
08ca2aa3 TH |
1138 | themselves if they need to do a lot of unpacks like this on it |
1139 | */ | |
fc241834 | 1140 | STATIC bool |
08ca2aa3 TH |
1141 | need_utf8(const char *pat, const char *patend) |
1142 | { | |
1143 | bool first = TRUE; | |
7918f24d NC |
1144 | |
1145 | PERL_ARGS_ASSERT_NEED_UTF8; | |
1146 | ||
08ca2aa3 TH |
1147 | while (pat < patend) { |
1148 | if (pat[0] == '#') { | |
1149 | pat++; | |
f7fe979e | 1150 | pat = (const char *) memchr(pat, '\n', patend-pat); |
08ca2aa3 TH |
1151 | if (!pat) return FALSE; |
1152 | } else if (pat[0] == 'U') { | |
1153 | if (first || pat[1] == '0') return TRUE; | |
1154 | } else first = FALSE; | |
1155 | pat++; | |
1156 | } | |
1157 | return FALSE; | |
1158 | } | |
1159 | ||
1160 | STATIC char | |
1161 | first_symbol(const char *pat, const char *patend) { | |
7918f24d NC |
1162 | PERL_ARGS_ASSERT_FIRST_SYMBOL; |
1163 | ||
08ca2aa3 TH |
1164 | while (pat < patend) { |
1165 | if (pat[0] != '#') return pat[0]; | |
1166 | pat++; | |
f7fe979e | 1167 | pat = (const char *) memchr(pat, '\n', patend-pat); |
08ca2aa3 TH |
1168 | if (!pat) return 0; |
1169 | pat++; | |
1170 | } | |
1171 | return 0; | |
1172 | } | |
1173 | ||
1174 | /* | |
7accc089 JH |
1175 | =for apidoc unpackstring |
1176 | ||
608d3aed WL |
1177 | The engine implementing unpack() Perl function. C<unpackstring> puts the |
1178 | extracted list items on the stack and returns the number of elements. | |
1179 | Issue C<PUTBACK> before and C<SPAGAIN> after the call to this function. | |
7accc089 JH |
1180 | |
1181 | =cut */ | |
1182 | ||
1183 | I32 | |
f7fe979e | 1184 | Perl_unpackstring(pTHX_ const char *pat, const char *patend, const char *s, const char *strend, U32 flags) |
7accc089 | 1185 | { |
f7fe979e | 1186 | tempsym_t sym; |
08ca2aa3 | 1187 | |
7918f24d NC |
1188 | PERL_ARGS_ASSERT_UNPACKSTRING; |
1189 | ||
f337b084 | 1190 | if (flags & FLAG_DO_UTF8) flags |= FLAG_WAS_UTF8; |
08ca2aa3 TH |
1191 | else if (need_utf8(pat, patend)) { |
1192 | /* We probably should try to avoid this in case a scalar context call | |
1193 | wouldn't get to the "U0" */ | |
1194 | STRLEN len = strend - s; | |
230e1fce | 1195 | s = (char *) bytes_to_utf8((U8 *) s, &len); |
08ca2aa3 TH |
1196 | SAVEFREEPV(s); |
1197 | strend = s + len; | |
f337b084 | 1198 | flags |= FLAG_DO_UTF8; |
08ca2aa3 TH |
1199 | } |
1200 | ||
f337b084 TH |
1201 | if (first_symbol(pat, patend) != 'U' && (flags & FLAG_DO_UTF8)) |
1202 | flags |= FLAG_PARSE_UTF8; | |
08ca2aa3 | 1203 | |
f7fe979e | 1204 | TEMPSYM_INIT(&sym, pat, patend, flags); |
7accc089 JH |
1205 | |
1206 | return unpack_rec(&sym, s, s, strend, NULL ); | |
1207 | } | |
1208 | ||
4136a0f7 | 1209 | STATIC I32 |
f7fe979e | 1210 | S_unpack_rec(pTHX_ tempsym_t* symptr, const char *s, const char *strbeg, const char *strend, const char **new_s ) |
49704364 | 1211 | { |
27da23d5 | 1212 | dVAR; dSP; |
18529408 | 1213 | SV *sv; |
f7fe979e | 1214 | const I32 start_sp_offset = SP - PL_stack_base; |
49704364 | 1215 | howlen_t howlen; |
a6ec74c1 | 1216 | I32 checksum = 0; |
92d41999 | 1217 | UV cuv = 0; |
a6ec74c1 | 1218 | NV cdouble = 0.0; |
f337b084 | 1219 | const int bits_in_uv = CHAR_BIT * sizeof(cuv); |
49704364 | 1220 | bool beyond = FALSE; |
21c16052 | 1221 | bool explicit_length; |
9e27e96a | 1222 | const bool unpack_only_one = (symptr->flags & FLAG_UNPACK_ONLY_ONE) != 0; |
f337b084 | 1223 | bool utf8 = (symptr->flags & FLAG_PARSE_UTF8) ? 1 : 0; |
7918f24d NC |
1224 | |
1225 | PERL_ARGS_ASSERT_UNPACK_REC; | |
1226 | ||
28be1210 | 1227 | symptr->strbeg = s - strbeg; |
49704364 | 1228 | |
49704364 | 1229 | while (next_symbol(symptr)) { |
a7a3cfaa | 1230 | packprops_t props; |
9e27e96a | 1231 | I32 len; |
f337b084 | 1232 | I32 datumtype = symptr->code; |
206947d2 | 1233 | /* do first one only unless in list context |
08ca2aa3 | 1234 | / is implemented by unpacking the count, then popping it from the |
206947d2 | 1235 | stack, so must check that we're not in the middle of a / */ |
49704364 | 1236 | if ( unpack_only_one |
206947d2 | 1237 | && (SP - PL_stack_base == start_sp_offset + 1) |
49704364 | 1238 | && (datumtype != '/') ) /* XXX can this be omitted */ |
206947d2 | 1239 | break; |
49704364 | 1240 | |
f337b084 | 1241 | switch (howlen = symptr->howlen) { |
fc241834 RGS |
1242 | case e_star: |
1243 | len = strend - strbeg; /* long enough */ | |
49704364 | 1244 | break; |
f337b084 TH |
1245 | default: |
1246 | /* e_no_len and e_number */ | |
1247 | len = symptr->length; | |
1248 | break; | |
49704364 | 1249 | } |
18529408 | 1250 | |
21c16052 | 1251 | explicit_length = TRUE; |
a6ec74c1 | 1252 | redo_switch: |
49704364 | 1253 | beyond = s >= strend; |
a7a3cfaa TH |
1254 | |
1255 | props = packprops[TYPE_NO_ENDIANNESS(datumtype)]; | |
1256 | if (props) { | |
1257 | /* props nonzero means we can process this letter. */ | |
9e27e96a AL |
1258 | const long size = props & PACK_SIZE_MASK; |
1259 | const long howmany = (strend - s) / size; | |
a7a3cfaa TH |
1260 | if (len > howmany) |
1261 | len = howmany; | |
1262 | ||
1263 | if (!checksum || (props & PACK_SIZE_CANNOT_CSUM)) { | |
1264 | if (len && unpack_only_one) len = 1; | |
1265 | EXTEND(SP, len); | |
1266 | EXTEND_MORTAL(len); | |
78d46eaa NC |
1267 | } |
1268 | } | |
a7a3cfaa | 1269 | |
1109a392 | 1270 | switch(TYPE_NO_ENDIANNESS(datumtype)) { |
a6ec74c1 | 1271 | default: |
1109a392 | 1272 | Perl_croak(aTHX_ "Invalid type '%c' in unpack", (int)TYPE_NO_MODIFIERS(datumtype) ); |
49704364 | 1273 | |
a6ec74c1 | 1274 | case '%': |
49704364 | 1275 | if (howlen == e_no_len) |
18529408 | 1276 | len = 16; /* len is not specified */ |
a6ec74c1 | 1277 | checksum = len; |
92d41999 | 1278 | cuv = 0; |
a6ec74c1 | 1279 | cdouble = 0; |
18529408 | 1280 | continue; |
a6ec74c1 | 1281 | break; |
18529408 IZ |
1282 | case '(': |
1283 | { | |
49704364 | 1284 | tempsym_t savsym = *symptr; |
9e27e96a | 1285 | const U32 group_modifiers = TYPE_MODIFIERS(datumtype & ~symptr->flags); |
66c611c5 | 1286 | symptr->flags |= group_modifiers; |
49704364 | 1287 | symptr->patend = savsym.grpend; |
28be1210 | 1288 | symptr->previous = &savsym; |
49704364 | 1289 | symptr->level++; |
18529408 | 1290 | PUTBACK; |
c6f750d1 | 1291 | if (len && unpack_only_one) len = 1; |
18529408 | 1292 | while (len--) { |
49704364 | 1293 | symptr->patptr = savsym.grpbeg; |
f337b084 TH |
1294 | if (utf8) symptr->flags |= FLAG_PARSE_UTF8; |
1295 | else symptr->flags &= ~FLAG_PARSE_UTF8; | |
08ca2aa3 TH |
1296 | unpack_rec(symptr, s, strbeg, strend, &s); |
1297 | if (s == strend && savsym.howlen == e_star) | |
49704364 | 1298 | break; /* No way to continue */ |
18529408 IZ |
1299 | } |
1300 | SPAGAIN; | |
28be1210 | 1301 | savsym.flags = symptr->flags & ~group_modifiers; |
49704364 | 1302 | *symptr = savsym; |
18529408 IZ |
1303 | break; |
1304 | } | |
28be1210 TH |
1305 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
1306 | case '.' | TYPE_IS_SHRIEKING: | |
1307 | #endif | |
1308 | case '.': { | |
9e27e96a | 1309 | const char *from; |
28be1210 TH |
1310 | SV *sv; |
1311 | #ifdef PERL_PACK_CAN_SHRIEKSIGN | |
9e27e96a | 1312 | const bool u8 = utf8 && !(datumtype & TYPE_IS_SHRIEKING); |
28be1210 | 1313 | #else /* PERL_PACK_CAN_SHRIEKSIGN */ |
9e27e96a | 1314 | const bool u8 = utf8; |
28be1210 TH |
1315 | #endif |
1316 | if (howlen == e_star) from = strbeg; | |
1317 | else if (len <= 0) from = s; | |
1318 | else { | |
1319 | tempsym_t *group = symptr; | |
1320 | ||
1321 | while (--len && group) group = group->previous; | |
1322 | from = group ? strbeg + group->strbeg : strbeg; | |
1323 | } | |
1324 | sv = from <= s ? | |
00646304 CB |
1325 | newSVuv( u8 ? (UV) utf8_length((const U8*)from, (const U8*)s) : (UV) (s-from)) : |
1326 | newSViv(-(u8 ? (IV) utf8_length((const U8*)s, (const U8*)from) : (IV) (from-s))); | |
6e449a3a | 1327 | mXPUSHs(sv); |
28be1210 TH |
1328 | break; |
1329 | } | |
1330 | #ifdef PERL_PACK_CAN_SHRIEKSIGN | |
1331 | case '@' | TYPE_IS_SHRIEKING: | |
1332 | #endif | |
a6ec74c1 | 1333 | case '@': |
28be1210 TH |
1334 | s = strbeg + symptr->strbeg; |
1335 | #ifdef PERL_PACK_CAN_SHRIEKSIGN | |
1336 | if (utf8 && !(datumtype & TYPE_IS_SHRIEKING)) | |
1337 | #else /* PERL_PACK_CAN_SHRIEKSIGN */ | |
1338 | if (utf8) | |
1339 | #endif | |
1340 | { | |
08ca2aa3 TH |
1341 | while (len > 0) { |
1342 | if (s >= strend) | |
1343 | Perl_croak(aTHX_ "'@' outside of string in unpack"); | |
1344 | s += UTF8SKIP(s); | |
1345 | len--; | |
1346 | } | |
1347 | if (s > strend) | |
1348 | Perl_croak(aTHX_ "'@' outside of string with malformed UTF-8 in unpack"); | |
1349 | } else { | |
28be1210 | 1350 | if (strend-s < len) |
fc241834 | 1351 | Perl_croak(aTHX_ "'@' outside of string in unpack"); |
28be1210 | 1352 | s += len; |
08ca2aa3 | 1353 | } |
a6ec74c1 | 1354 | break; |
62f95557 IZ |
1355 | case 'X' | TYPE_IS_SHRIEKING: |
1356 | if (!len) /* Avoid division by 0 */ | |
1357 | len = 1; | |
08ca2aa3 | 1358 | if (utf8) { |
f7fe979e | 1359 | const char *hop, *last; |
f337b084 TH |
1360 | I32 l = len; |
1361 | hop = last = strbeg; | |
1362 | while (hop < s) { | |
1363 | hop += UTF8SKIP(hop); | |
1364 | if (--l == 0) { | |
08ca2aa3 | 1365 | last = hop; |
f337b084 TH |
1366 | l = len; |
1367 | } | |
fc241834 | 1368 | } |
f337b084 TH |
1369 | if (last > s) |
1370 | Perl_croak(aTHX_ "Malformed UTF-8 string in unpack"); | |
08ca2aa3 TH |
1371 | s = last; |
1372 | break; | |
f337b084 TH |
1373 | } |
1374 | len = (s - strbeg) % len; | |
62f95557 | 1375 | /* FALL THROUGH */ |
a6ec74c1 | 1376 | case 'X': |
08ca2aa3 TH |
1377 | if (utf8) { |
1378 | while (len > 0) { | |
1379 | if (s <= strbeg) | |
1380 | Perl_croak(aTHX_ "'X' outside of string in unpack"); | |
f337b084 | 1381 | while (--s, UTF8_IS_CONTINUATION(*s)) { |
08ca2aa3 TH |
1382 | if (s <= strbeg) |
1383 | Perl_croak(aTHX_ "'X' outside of string in unpack"); | |
1384 | } | |
1385 | len--; | |
1386 | } | |
1387 | } else { | |
fc241834 RGS |
1388 | if (len > s - strbeg) |
1389 | Perl_croak(aTHX_ "'X' outside of string in unpack" ); | |
1390 | s -= len; | |
08ca2aa3 | 1391 | } |
a6ec74c1 | 1392 | break; |
9e27e96a AL |
1393 | case 'x' | TYPE_IS_SHRIEKING: { |
1394 | I32 ai32; | |
62f95557 IZ |
1395 | if (!len) /* Avoid division by 0 */ |
1396 | len = 1; | |
230e1fce NC |
1397 | if (utf8) ai32 = utf8_length((U8 *) strbeg, (U8 *) s) % len; |
1398 | else ai32 = (s - strbeg) % len; | |
08ca2aa3 TH |
1399 | if (ai32 == 0) break; |
1400 | len -= ai32; | |
9e27e96a | 1401 | } |
62f95557 | 1402 | /* FALL THROUGH */ |
a6ec74c1 | 1403 | case 'x': |
08ca2aa3 TH |
1404 | if (utf8) { |
1405 | while (len>0) { | |
1406 | if (s >= strend) | |
1407 | Perl_croak(aTHX_ "'x' outside of string in unpack"); | |
1408 | s += UTF8SKIP(s); | |
1409 | len--; | |
1410 | } | |
1411 | } else { | |
fc241834 RGS |
1412 | if (len > strend - s) |
1413 | Perl_croak(aTHX_ "'x' outside of string in unpack"); | |
1414 | s += len; | |
f337b084 | 1415 | } |
a6ec74c1 JH |
1416 | break; |
1417 | case '/': | |
49704364 WL |
1418 | Perl_croak(aTHX_ "'/' must follow a numeric type in unpack"); |
1419 | break; | |
a6ec74c1 JH |
1420 | case 'A': |
1421 | case 'Z': | |
1422 | case 'a': | |
08ca2aa3 TH |
1423 | if (checksum) { |
1424 | /* Preliminary length estimate is assumed done in 'W' */ | |
1425 | if (len > strend - s) len = strend - s; | |
1426 | goto W_checksum; | |
1427 | } | |
1428 | if (utf8) { | |
1429 | I32 l; | |
f7fe979e | 1430 | const char *hop; |
08ca2aa3 TH |
1431 | for (l=len, hop=s; l>0; l--, hop += UTF8SKIP(hop)) { |
1432 | if (hop >= strend) { | |
1433 | if (hop > strend) | |
1434 | Perl_croak(aTHX_ "Malformed UTF-8 string in unpack"); | |
1435 | break; | |
fc241834 | 1436 | } |
a6ec74c1 | 1437 | } |
08ca2aa3 TH |
1438 | if (hop > strend) |
1439 | Perl_croak(aTHX_ "Malformed UTF-8 string in unpack"); | |
1440 | len = hop - s; | |
1441 | } else if (len > strend - s) | |
1442 | len = strend - s; | |
1443 | ||
1444 | if (datumtype == 'Z') { | |
1445 | /* 'Z' strips stuff after first null */ | |
f7fe979e | 1446 | const char *ptr, *end; |
f337b084 TH |
1447 | end = s + len; |
1448 | for (ptr = s; ptr < end; ptr++) if (*ptr == 0) break; | |
08ca2aa3 TH |
1449 | sv = newSVpvn(s, ptr-s); |
1450 | if (howlen == e_star) /* exact for 'Z*' */ | |
1451 | len = ptr-s + (ptr != strend ? 1 : 0); | |
1452 | } else if (datumtype == 'A') { | |
1453 | /* 'A' strips both nulls and spaces */ | |
f7fe979e | 1454 | const char *ptr; |
18bdf90a TH |
1455 | if (utf8 && (symptr->flags & FLAG_WAS_UTF8)) { |
1456 | for (ptr = s+len-1; ptr >= s; ptr--) | |
1457 | if (*ptr != 0 && !UTF8_IS_CONTINUATION(*ptr) && | |
230e1fce | 1458 | !is_utf8_space((U8 *) ptr)) break; |
18bdf90a TH |
1459 | if (ptr >= s) ptr += UTF8SKIP(ptr); |
1460 | else ptr++; | |
28be1210 | 1461 | if (ptr > s+len) |
18bdf90a TH |
1462 | Perl_croak(aTHX_ "Malformed UTF-8 string in unpack"); |
1463 | } else { | |
1464 | for (ptr = s+len-1; ptr >= s; ptr--) | |
1465 | if (*ptr != 0 && !isSPACE(*ptr)) break; | |
1466 | ptr++; | |
1467 | } | |
08ca2aa3 TH |
1468 | sv = newSVpvn(s, ptr-s); |
1469 | } else sv = newSVpvn(s, len); | |
1470 | ||
1471 | if (utf8) { | |
1472 | SvUTF8_on(sv); | |
1473 | /* Undo any upgrade done due to need_utf8() */ | |
f337b084 | 1474 | if (!(symptr->flags & FLAG_WAS_UTF8)) |
08ca2aa3 | 1475 | sv_utf8_downgrade(sv, 0); |
a6ec74c1 | 1476 | } |
6e449a3a | 1477 | mXPUSHs(sv); |
08ca2aa3 | 1478 | s += len; |
a6ec74c1 JH |
1479 | break; |
1480 | case 'B': | |
08ca2aa3 TH |
1481 | case 'b': { |
1482 | char *str; | |
49704364 | 1483 | if (howlen == e_star || len > (strend - s) * 8) |
a6ec74c1 JH |
1484 | len = (strend - s) * 8; |
1485 | if (checksum) { | |
f337b084 | 1486 | if (utf8) |
08ca2aa3 | 1487 | while (len >= 8 && s < strend) { |
f337b084 | 1488 | cuv += PL_bitcount[uni_to_byte(aTHX_ &s, strend, datumtype)]; |
08ca2aa3 TH |
1489 | len -= 8; |
1490 | } | |
f337b084 | 1491 | else |
fc241834 | 1492 | while (len >= 8) { |
08ca2aa3 | 1493 | cuv += PL_bitcount[*(U8 *)s++]; |
fc241834 RGS |
1494 | len -= 8; |
1495 | } | |
08ca2aa3 TH |
1496 | if (len && s < strend) { |
1497 | U8 bits; | |
f337b084 TH |
1498 | bits = SHIFT_BYTE(utf8, s, strend, datumtype); |
1499 | if (datumtype == 'b') | |
a6ec74c1 | 1500 | while (len-- > 0) { |
92d41999 | 1501 | if (bits & 1) cuv++; |
a6ec74c1 JH |
1502 | bits >>= 1; |
1503 | } | |
f337b084 | 1504 | else |
a6ec74c1 | 1505 | while (len-- > 0) { |
08ca2aa3 | 1506 | if (bits & 0x80) cuv++; |
a6ec74c1 JH |
1507 | bits <<= 1; |
1508 | } | |
fc241834 | 1509 | } |
a6ec74c1 JH |
1510 | break; |
1511 | } | |
08ca2aa3 | 1512 | |
561b68a9 | 1513 | sv = sv_2mortal(newSV(len ? len : 1)); |
a6ec74c1 JH |
1514 | SvPOK_on(sv); |
1515 | str = SvPVX(sv); | |
1516 | if (datumtype == 'b') { | |
f337b084 | 1517 | U8 bits = 0; |
f7fe979e | 1518 | const I32 ai32 = len; |
08ca2aa3 TH |
1519 | for (len = 0; len < ai32; len++) { |
1520 | if (len & 7) bits >>= 1; | |
1521 | else if (utf8) { | |
1522 | if (s >= strend) break; | |
f337b084 | 1523 | bits = uni_to_byte(aTHX_ &s, strend, datumtype); |
08ca2aa3 TH |
1524 | } else bits = *(U8 *) s++; |
1525 | *str++ = bits & 1 ? '1' : '0'; | |
a6ec74c1 | 1526 | } |
08ca2aa3 | 1527 | } else { |
f337b084 | 1528 | U8 bits = 0; |
f7fe979e | 1529 | const I32 ai32 = len; |
08ca2aa3 TH |
1530 | for (len = 0; len < ai32; len++) { |
1531 | if (len & 7) bits <<= 1; | |
1532 | else if (utf8) { | |
1533 | if (s >= strend) break; | |
f337b084 | 1534 | bits = uni_to_byte(aTHX_ &s, strend, datumtype); |
08ca2aa3 TH |
1535 | } else bits = *(U8 *) s++; |
1536 | *str++ = bits & 0x80 ? '1' : '0'; | |
a6ec74c1 JH |
1537 | } |
1538 | } | |
1539 | *str = '\0'; | |
aa07b2f6 | 1540 | SvCUR_set(sv, str - SvPVX_const(sv)); |
08ca2aa3 | 1541 | XPUSHs(sv); |
a6ec74c1 | 1542 | break; |
08ca2aa3 | 1543 | } |
a6ec74c1 | 1544 | case 'H': |
08ca2aa3 TH |
1545 | case 'h': { |
1546 | char *str; | |
fc241834 | 1547 | /* Preliminary length estimate, acceptable for utf8 too */ |
49704364 | 1548 | if (howlen == e_star || len > (strend - s) * 2) |
a6ec74c1 | 1549 | len = (strend - s) * 2; |
561b68a9 | 1550 | sv = sv_2mortal(newSV(len ? len : 1)); |
a6ec74c1 JH |
1551 | SvPOK_on(sv); |
1552 | str = SvPVX(sv); | |
1553 | if (datumtype == 'h') { | |
f337b084 | 1554 | U8 bits = 0; |
9e27e96a | 1555 | I32 ai32 = len; |
fc241834 RGS |
1556 | for (len = 0; len < ai32; len++) { |
1557 | if (len & 1) bits >>= 4; | |
1558 | else if (utf8) { | |
1559 | if (s >= strend) break; | |
f337b084 | 1560 | bits = uni_to_byte(aTHX_ &s, strend, datumtype); |
fc241834 | 1561 | } else bits = * (U8 *) s++; |
a6ec74c1 JH |
1562 | *str++ = PL_hexdigit[bits & 15]; |
1563 | } | |
08ca2aa3 | 1564 | } else { |
f337b084 | 1565 | U8 bits = 0; |
f7fe979e | 1566 | const I32 ai32 = len; |
08ca2aa3 TH |
1567 | for (len = 0; len < ai32; len++) { |
1568 | if (len & 1) bits <<= 4; | |
1569 | else if (utf8) { | |
1570 | if (s >= strend) break; | |
f337b084 | 1571 | bits = uni_to_byte(aTHX_ &s, strend, datumtype); |
08ca2aa3 | 1572 | } else bits = *(U8 *) s++; |
a6ec74c1 JH |
1573 | *str++ = PL_hexdigit[(bits >> 4) & 15]; |
1574 | } | |
1575 | } | |
1576 | *str = '\0'; | |
aa07b2f6 | 1577 | SvCUR_set(sv, str - SvPVX_const(sv)); |
08ca2aa3 | 1578 | XPUSHs(sv); |
a6ec74c1 | 1579 | break; |
08ca2aa3 | 1580 | } |
1651fc44 ML |
1581 | case 'C': |
1582 | if (len == 0) { | |
1583 | if (explicit_length) | |
1584 | /* Switch to "character" mode */ | |
1585 | utf8 = (symptr->flags & FLAG_DO_UTF8) ? 1 : 0; | |
1586 | break; | |
1587 | } | |
1588 | /* FALL THROUGH */ | |
a6ec74c1 | 1589 | case 'c': |
1651fc44 ML |
1590 | while (len-- > 0 && s < strend) { |
1591 | int aint; | |
1592 | if (utf8) | |
1593 | { | |
1594 | STRLEN retlen; | |
1595 | aint = utf8n_to_uvchr((U8 *) s, strend-s, &retlen, | |
1596 | ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANY); | |
1597 | if (retlen == (STRLEN) -1 || retlen == 0) | |
1598 | Perl_croak(aTHX_ "Malformed UTF-8 string in unpack"); | |
1599 | s += retlen; | |
1600 | } | |
1601 | else | |
1602 | aint = *(U8 *)(s)++; | |
1603 | if (aint >= 128 && datumtype != 'C') /* fake up signed chars */ | |
73cb7263 | 1604 | aint -= 256; |
08ca2aa3 | 1605 | if (!checksum) |
6e449a3a | 1606 | mPUSHi(aint); |
73cb7263 NC |
1607 | else if (checksum > bits_in_uv) |
1608 | cdouble += (NV)aint; | |
1609 | else | |
1610 | cuv += aint; | |
a6ec74c1 JH |
1611 | } |
1612 | break; | |
08ca2aa3 TH |
1613 | case 'W': |
1614 | W_checksum: | |
1651fc44 | 1615 | if (utf8) { |
08ca2aa3 | 1616 | while (len-- > 0 && s < strend) { |
08ca2aa3 | 1617 | STRLEN retlen; |
f7fe979e | 1618 | const UV val = utf8n_to_uvchr((U8 *) s, strend-s, &retlen, |
f337b084 | 1619 | ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANY); |
08ca2aa3 TH |
1620 | if (retlen == (STRLEN) -1 || retlen == 0) |
1621 | Perl_croak(aTHX_ "Malformed UTF-8 string in unpack"); | |
1622 | s += retlen; | |
1623 | if (!checksum) | |
6e449a3a | 1624 | mPUSHu(val); |
08ca2aa3 TH |
1625 | else if (checksum > bits_in_uv) |
1626 | cdouble += (NV) val; | |
d6d3e8bd | 1627 | else |
08ca2aa3 | 1628 | cuv += val; |
fc241834 | 1629 | } |
08ca2aa3 | 1630 | } else if (!checksum) |
a6ec74c1 | 1631 | while (len-- > 0) { |
f7fe979e | 1632 | const U8 ch = *(U8 *) s++; |
6e449a3a | 1633 | mPUSHu(ch); |
a6ec74c1 | 1634 | } |
08ca2aa3 TH |
1635 | else if (checksum > bits_in_uv) |
1636 | while (len-- > 0) cdouble += (NV) *(U8 *) s++; | |
1637 | else | |
1638 | while (len-- > 0) cuv += *(U8 *) s++; | |
a6ec74c1 JH |
1639 | break; |
1640 | case 'U': | |
35bcd338 | 1641 | if (len == 0) { |
08ca2aa3 TH |
1642 | if (explicit_length) { |
1643 | /* Switch to "bytes in UTF-8" mode */ | |
f337b084 | 1644 | if (symptr->flags & FLAG_DO_UTF8) utf8 = 0; |
08ca2aa3 TH |
1645 | else |
1646 | /* Should be impossible due to the need_utf8() test */ | |
1647 | Perl_croak(aTHX_ "U0 mode on a byte string"); | |
1648 | } | |
35bcd338 JH |
1649 | break; |
1650 | } | |
08ca2aa3 | 1651 | if (len > strend - s) len = strend - s; |
fc241834 | 1652 | if (!checksum) { |
08ca2aa3 TH |
1653 | if (len && unpack_only_one) len = 1; |
1654 | EXTEND(SP, len); | |
1655 | EXTEND_MORTAL(len); | |
fc241834 | 1656 | } |
08ca2aa3 TH |
1657 | while (len-- > 0 && s < strend) { |
1658 | STRLEN retlen; | |
1659 | UV auv; | |
1660 | if (utf8) { | |
1661 | U8 result[UTF8_MAXLEN]; | |
f7fe979e | 1662 | const char *ptr = s; |
08ca2aa3 | 1663 | STRLEN len; |
08ca2aa3 TH |
1664 | /* Bug: warns about bad utf8 even if we are short on bytes |
1665 | and will break out of the loop */ | |
230e1fce NC |
1666 | if (!uni_to_bytes(aTHX_ &ptr, strend, (char *) result, 1, |
1667 | 'U')) | |
08ca2aa3 TH |
1668 | break; |
1669 | len = UTF8SKIP(result); | |
fc241834 | 1670 | if (!uni_to_bytes(aTHX_ &ptr, strend, |
230e1fce | 1671 | (char *) &result[1], len-1, 'U')) break; |
08ca2aa3 TH |
1672 | auv = utf8n_to_uvuni(result, len, &retlen, ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANYUV); |
1673 | s = ptr; | |
1674 | } else { | |
1675 | auv = utf8n_to_uvuni((U8*)s, strend - s, &retlen, ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANYUV); | |
1676 | if (retlen == (STRLEN) -1 || retlen == 0) | |
1677 | Perl_croak(aTHX_ "Malformed UTF-8 string in unpack"); | |
1678 | s += retlen; | |
1679 | } | |
1680 | if (!checksum) | |
6e449a3a | 1681 | mPUSHu(auv); |
73cb7263 | 1682 | else if (checksum > bits_in_uv) |
08ca2aa3 | 1683 | cdouble += (NV) auv; |
73cb7263 | 1684 | else |
08ca2aa3 | 1685 | cuv += auv; |
a6ec74c1 JH |
1686 | } |
1687 | break; | |
49704364 WL |
1688 | case 's' | TYPE_IS_SHRIEKING: |
1689 | #if SHORTSIZE != SIZE16 | |
73cb7263 | 1690 | while (len-- > 0) { |
08ca2aa3 | 1691 | short ashort; |
f337b084 TH |
1692 | SHIFT_VAR(utf8, s, strend, ashort, datumtype); |
1693 | DO_BO_UNPACK(ashort, s); | |
08ca2aa3 | 1694 | if (!checksum) |
6e449a3a | 1695 | mPUSHi(ashort); |
73cb7263 NC |
1696 | else if (checksum > bits_in_uv) |
1697 | cdouble += (NV)ashort; | |
1698 | else | |
1699 | cuv += ashort; | |
49704364 WL |
1700 | } |
1701 | break; | |
1702 | #else | |
1703 | /* Fallthrough! */ | |
a6ec74c1 | 1704 | #endif |
49704364 | 1705 | case 's': |
73cb7263 | 1706 | while (len-- > 0) { |
08ca2aa3 TH |
1707 | I16 ai16; |
1708 | ||
1709 | #if U16SIZE > SIZE16 | |
1710 | ai16 = 0; | |
1711 | #endif | |
f337b084 | 1712 | SHIFT16(utf8, s, strend, &ai16, datumtype); |
73cb7263 | 1713 | DO_BO_UNPACK(ai16, 16); |
1109a392 | 1714 | #if U16SIZE > SIZE16 |
73cb7263 NC |
1715 | if (ai16 > 32767) |
1716 | ai16 -= 65536; | |
a6ec74c1 | 1717 | #endif |
08ca2aa3 | 1718 | if (!checksum) |
6e449a3a | 1719 | mPUSHi(ai16); |
73cb7263 NC |
1720 | else if (checksum > bits_in_uv) |
1721 | cdouble += (NV)ai16; | |
1722 | else | |
1723 | cuv += ai16; | |
a6ec74c1 JH |
1724 | } |
1725 | break; | |
49704364 WL |
1726 | case 'S' | TYPE_IS_SHRIEKING: |
1727 | #if SHORTSIZE != SIZE16 | |
73cb7263 | 1728 | while (len-- > 0) { |
08ca2aa3 | 1729 | unsigned short aushort; |
f337b084 TH |
1730 | SHIFT_VAR(utf8, s, strend, aushort, datumtype); |
1731 | DO_BO_UNPACK(aushort, s); | |
08ca2aa3 | 1732 | if (!checksum) |
6e449a3a | 1733 | mPUSHu(aushort); |
73cb7263 NC |
1734 | else if (checksum > bits_in_uv) |
1735 | cdouble += (NV)aushort; | |
1736 | else | |
1737 | cuv += aushort; | |
49704364 WL |
1738 | } |
1739 | break; | |
1740 | #else | |
1741 | /* Fallhrough! */ | |
1742 | #endif | |
a6ec74c1 JH |
1743 | case 'v': |
1744 | case 'n': | |
1745 | case 'S': | |
73cb7263 | 1746 | while (len-- > 0) { |
08ca2aa3 TH |
1747 | U16 au16; |
1748 | #if U16SIZE > SIZE16 | |
1749 | au16 = 0; | |
1750 | #endif | |
f337b084 | 1751 | SHIFT16(utf8, s, strend, &au16, datumtype); |
08ca2aa3 | 1752 | DO_BO_UNPACK(au16, 16); |
a6ec74c1 | 1753 | #ifdef HAS_NTOHS |
73cb7263 NC |
1754 | if (datumtype == 'n') |
1755 | au16 = PerlSock_ntohs(au16); | |
a6ec74c1 JH |
1756 | #endif |
1757 | #ifdef HAS_VTOHS | |
73cb7263 NC |
1758 | if (datumtype == 'v') |
1759 | au16 = vtohs(au16); | |
a6ec74c1 | 1760 | #endif |
08ca2aa3 | 1761 | if (!checksum) |
6e449a3a | 1762 | mPUSHu(au16); |
73cb7263 | 1763 | else if (checksum > bits_in_uv) |
f337b084 | 1764 | cdouble += (NV) au16; |
73cb7263 NC |
1765 | else |
1766 | cuv += au16; | |
a6ec74c1 JH |
1767 | } |
1768 | break; | |
7212898e | 1769 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
068bd2e7 MHM |
1770 | case 'v' | TYPE_IS_SHRIEKING: |
1771 | case 'n' | TYPE_IS_SHRIEKING: | |
73cb7263 | 1772 | while (len-- > 0) { |
08ca2aa3 TH |
1773 | I16 ai16; |
1774 | # if U16SIZE > SIZE16 | |
1775 | ai16 = 0; | |
1776 | # endif | |
f337b084 | 1777 | SHIFT16(utf8, s, strend, &ai16, datumtype); |
08ca2aa3 | 1778 | # ifdef HAS_NTOHS |
73cb7263 | 1779 | if (datumtype == ('n' | TYPE_IS_SHRIEKING)) |
08ca2aa3 TH |
1780 | ai16 = (I16) PerlSock_ntohs((U16) ai16); |
1781 | # endif /* HAS_NTOHS */ | |
1782 | # ifdef HAS_VTOHS | |
73cb7263 | 1783 | if (datumtype == ('v' | TYPE_IS_SHRIEKING)) |
08ca2aa3 TH |
1784 | ai16 = (I16) vtohs((U16) ai16); |
1785 | # endif /* HAS_VTOHS */ | |
1786 | if (!checksum) | |
6e449a3a | 1787 | mPUSHi(ai16); |
73cb7263 | 1788 | else if (checksum > bits_in_uv) |
08ca2aa3 | 1789 | cdouble += (NV) ai16; |
73cb7263 NC |
1790 | else |
1791 | cuv += ai16; | |
068bd2e7 MHM |
1792 | } |
1793 | break; | |
08ca2aa3 | 1794 | #endif /* PERL_PACK_CAN_SHRIEKSIGN */ |
a6ec74c1 | 1795 | case 'i': |
49704364 | 1796 | case 'i' | TYPE_IS_SHRIEKING: |
73cb7263 | 1797 | while (len-- > 0) { |
08ca2aa3 | 1798 | int aint; |
f337b084 TH |
1799 | SHIFT_VAR(utf8, s, strend, aint, datumtype); |
1800 | DO_BO_UNPACK(aint, i); | |
08ca2aa3 | 1801 | if (!checksum) |
6e449a3a | 1802 | mPUSHi(aint); |
73cb7263 NC |
1803 | else if (checksum > bits_in_uv) |
1804 | cdouble += (NV)aint; | |
1805 | else | |
1806 | cuv += aint; | |
a6ec74c1 JH |
1807 | } |
1808 | break; | |
1809 | case 'I': | |
49704364 | 1810 | case 'I' | TYPE_IS_SHRIEKING: |
73cb7263 | 1811 | while (len-- > 0) { |
08ca2aa3 | 1812 | unsigned int auint; |
f337b084 TH |
1813 | SHIFT_VAR(utf8, s, strend, auint, datumtype); |
1814 | DO_BO_UNPACK(auint, i); | |
08ca2aa3 | 1815 | if (!checksum) |
6e449a3a | 1816 | mPUSHu(auint); |
73cb7263 NC |
1817 | else if (checksum > bits_in_uv) |
1818 | cdouble += (NV)auint; | |
1819 | else | |
1820 | cuv += auint; | |
a6ec74c1 JH |
1821 | } |
1822 | break; | |
92d41999 | 1823 | case 'j': |
73cb7263 | 1824 | while (len-- > 0) { |
08ca2aa3 | 1825 | IV aiv; |
f337b084 | 1826 | SHIFT_VAR(utf8, s, strend, aiv, datumtype); |
1109a392 | 1827 | #if IVSIZE == INTSIZE |
f337b084 | 1828 | DO_BO_UNPACK(aiv, i); |
1109a392 | 1829 | #elif IVSIZE == LONGSIZE |
f337b084 | 1830 | DO_BO_UNPACK(aiv, l); |
1109a392 | 1831 | #elif defined(HAS_QUAD) && IVSIZE == U64SIZE |
f337b084 | 1832 | DO_BO_UNPACK(aiv, 64); |
08ca2aa3 TH |
1833 | #else |
1834 | Perl_croak(aTHX_ "'j' not supported on this platform"); | |
1109a392 | 1835 | #endif |
08ca2aa3 | 1836 | if (!checksum) |
6e449a3a | 1837 | mPUSHi(aiv); |
73cb7263 NC |
1838 | else if (checksum > bits_in_uv) |
1839 | cdouble += (NV)aiv; | |
1840 | else | |
1841 | cuv += aiv; | |
92d41999 JH |
1842 | } |
1843 | break; | |
1844 | case 'J': | |
73cb7263 | 1845 | while (len-- > 0) { |
08ca2aa3 | 1846 | UV auv; |
f337b084 | 1847 | SHIFT_VAR(utf8, s, strend, auv, datumtype); |
08ca2aa3 | 1848 | #if IVSIZE == INTSIZE |
f337b084 | 1849 | DO_BO_UNPACK(auv, i); |
08ca2aa3 | 1850 | #elif IVSIZE == LONGSIZE |
f337b084 | 1851 | DO_BO_UNPACK(auv, l); |
08ca2aa3 | 1852 | #elif defined(HAS_QUAD) && IVSIZE == U64SIZE |
f337b084 | 1853 | DO_BO_UNPACK(auv, 64); |
08ca2aa3 TH |
1854 | #else |
1855 | Perl_croak(aTHX_ "'J' not supported on this platform"); | |
1109a392 | 1856 | #endif |
08ca2aa3 | 1857 | if (!checksum) |
6e449a3a | 1858 | mPUSHu(auv); |
73cb7263 NC |
1859 | else if (checksum > bits_in_uv) |
1860 | cdouble += (NV)auv; | |
1861 | else | |
1862 | cuv += auv; | |
92d41999 JH |
1863 | } |
1864 | break; | |
49704364 WL |
1865 | case 'l' | TYPE_IS_SHRIEKING: |
1866 | #if LONGSIZE != SIZE32 | |
73cb7263 | 1867 | while (len-- > 0) { |
08ca2aa3 | 1868 | long along; |
f337b084 TH |
1869 | SHIFT_VAR(utf8, s, strend, along, datumtype); |
1870 | DO_BO_UNPACK(along, l); | |
08ca2aa3 | 1871 | if (!checksum) |
6e449a3a | 1872 | mPUSHi(along); |
73cb7263 NC |
1873 | else if (checksum > bits_in_uv) |
1874 | cdouble += (NV)along; | |
1875 | else | |
1876 | cuv += along; | |
49704364 WL |
1877 | } |
1878 | break; | |
1879 | #else | |
1880 | /* Fallthrough! */ | |
a6ec74c1 | 1881 | #endif |
49704364 | 1882 | case 'l': |
73cb7263 | 1883 | while (len-- > 0) { |
08ca2aa3 TH |
1884 | I32 ai32; |
1885 | #if U32SIZE > SIZE32 | |
1886 | ai32 = 0; | |
1887 | #endif | |
f337b084 | 1888 | SHIFT32(utf8, s, strend, &ai32, datumtype); |
73cb7263 | 1889 | DO_BO_UNPACK(ai32, 32); |
25a9bd2a | 1890 | #if U32SIZE > SIZE32 |
08ca2aa3 | 1891 | if (ai32 > 2147483647) ai32 -= 4294967296; |
a6ec74c1 | 1892 | #endif |
08ca2aa3 | 1893 | if (!checksum) |
6e449a3a | 1894 | mPUSHi(ai32); |
73cb7263 NC |
1895 | else if (checksum > bits_in_uv) |
1896 | cdouble += (NV)ai32; | |
1897 | else | |
1898 | cuv += ai32; | |
a6ec74c1 JH |
1899 | } |
1900 | break; | |
49704364 WL |
1901 | case 'L' | TYPE_IS_SHRIEKING: |
1902 | #if LONGSIZE != SIZE32 | |
73cb7263 | 1903 | while (len-- > 0) { |
08ca2aa3 | 1904 | unsigned long aulong; |
f337b084 TH |
1905 | SHIFT_VAR(utf8, s, strend, aulong, datumtype); |
1906 | DO_BO_UNPACK(aulong, l); | |
08ca2aa3 | 1907 | if (!checksum) |
6e449a3a | 1908 | mPUSHu(aulong); |
73cb7263 NC |
1909 | else if (checksum > bits_in_uv) |
1910 | cdouble += (NV)aulong; | |
1911 | else | |
1912 | cuv += aulong; | |
49704364 WL |
1913 | } |
1914 | break; | |
1915 | #else | |
1916 | /* Fall through! */ | |
1917 | #endif | |
a6ec74c1 JH |
1918 | case 'V': |
1919 | case 'N': | |
1920 | case 'L': | |
73cb7263 | 1921 | while (len-- > 0) { |
08ca2aa3 TH |
1922 | U32 au32; |
1923 | #if U32SIZE > SIZE32 | |
1924 | au32 = 0; | |
1925 | #endif | |
f337b084 | 1926 | SHIFT32(utf8, s, strend, &au32, datumtype); |
08ca2aa3 | 1927 | DO_BO_UNPACK(au32, 32); |
a6ec74c1 | 1928 | #ifdef HAS_NTOHL |
73cb7263 NC |
1929 | if (datumtype == 'N') |
1930 | au32 = PerlSock_ntohl(au32); | |
a6ec74c1 JH |
1931 | #endif |
1932 | #ifdef HAS_VTOHL | |
73cb7263 NC |
1933 | if (datumtype == 'V') |
1934 | au32 = vtohl(au32); | |
a6ec74c1 | 1935 | #endif |
08ca2aa3 | 1936 | if (!checksum) |
6e449a3a | 1937 | mPUSHu(au32); |
fc241834 RGS |
1938 | else if (checksum > bits_in_uv) |
1939 | cdouble += (NV)au32; | |
1940 | else | |
1941 | cuv += au32; | |
a6ec74c1 JH |
1942 | } |
1943 | break; | |
7212898e | 1944 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
068bd2e7 MHM |
1945 | case 'V' | TYPE_IS_SHRIEKING: |
1946 | case 'N' | TYPE_IS_SHRIEKING: | |
73cb7263 | 1947 | while (len-- > 0) { |
08ca2aa3 TH |
1948 | I32 ai32; |
1949 | # if U32SIZE > SIZE32 | |
1950 | ai32 = 0; | |
1951 | # endif | |
f337b084 | 1952 | SHIFT32(utf8, s, strend, &ai32, datumtype); |
08ca2aa3 | 1953 | # ifdef HAS_NTOHL |
73cb7263 NC |
1954 | if (datumtype == ('N' | TYPE_IS_SHRIEKING)) |
1955 | ai32 = (I32)PerlSock_ntohl((U32)ai32); | |
08ca2aa3 TH |
1956 | # endif |
1957 | # ifdef HAS_VTOHL | |
73cb7263 NC |
1958 | if (datumtype == ('V' | TYPE_IS_SHRIEKING)) |
1959 | ai32 = (I32)vtohl((U32)ai32); | |
08ca2aa3 TH |
1960 | # endif |
1961 | if (!checksum) | |
6e449a3a | 1962 | mPUSHi(ai32); |
73cb7263 NC |
1963 | else if (checksum > bits_in_uv) |
1964 | cdouble += (NV)ai32; | |
1965 | else | |
1966 | cuv += ai32; | |
068bd2e7 MHM |
1967 | } |
1968 | break; | |
08ca2aa3 | 1969 | #endif /* PERL_PACK_CAN_SHRIEKSIGN */ |
a6ec74c1 | 1970 | case 'p': |
a6ec74c1 | 1971 | while (len-- > 0) { |
f7fe979e | 1972 | const char *aptr; |
f337b084 | 1973 | SHIFT_VAR(utf8, s, strend, aptr, datumtype); |
07409e01 | 1974 | DO_BO_UNPACK_PC(aptr); |
c4c5f44a | 1975 | /* newSVpv generates undef if aptr is NULL */ |
6e449a3a | 1976 | mPUSHs(newSVpv(aptr, 0)); |
a6ec74c1 JH |
1977 | } |
1978 | break; | |
1979 | case 'w': | |
a6ec74c1 JH |
1980 | { |
1981 | UV auv = 0; | |
1982 | U32 bytes = 0; | |
fc241834 | 1983 | |
08ca2aa3 TH |
1984 | while (len > 0 && s < strend) { |
1985 | U8 ch; | |
f337b084 | 1986 | ch = SHIFT_BYTE(utf8, s, strend, datumtype); |
08ca2aa3 | 1987 | auv = (auv << 7) | (ch & 0x7f); |
a6ec74c1 | 1988 | /* UTF8_IS_XXXXX not right here - using constant 0x80 */ |
08ca2aa3 | 1989 | if (ch < 0x80) { |
a6ec74c1 | 1990 | bytes = 0; |
6e449a3a | 1991 | mPUSHu(auv); |
a6ec74c1 JH |
1992 | len--; |
1993 | auv = 0; | |
08ca2aa3 | 1994 | continue; |
a6ec74c1 | 1995 | } |
08ca2aa3 | 1996 | if (++bytes >= sizeof(UV)) { /* promote to string */ |
10516c54 | 1997 | const char *t; |
a6ec74c1 | 1998 | |
f5992bc4 | 1999 | sv = Perl_newSVpvf(aTHX_ "%.*"UVuf, (int)TYPE_DIGITS(UV), auv); |
a6ec74c1 | 2000 | while (s < strend) { |
f337b084 | 2001 | ch = SHIFT_BYTE(utf8, s, strend, datumtype); |
08ca2aa3 TH |
2002 | sv = mul128(sv, (U8)(ch & 0x7f)); |
2003 | if (!(ch & 0x80)) { | |
a6ec74c1 JH |
2004 | bytes = 0; |
2005 | break; | |
2006 | } | |
2007 | } | |
10516c54 | 2008 | t = SvPV_nolen_const(sv); |
a6ec74c1 JH |
2009 | while (*t == '0') |
2010 | t++; | |
2011 | sv_chop(sv, t); | |
6e449a3a | 2012 | mPUSHs(sv); |
a6ec74c1 JH |
2013 | len--; |
2014 | auv = 0; | |
2015 | } | |
2016 | } | |
2017 | if ((s >= strend) && bytes) | |
49704364 | 2018 | Perl_croak(aTHX_ "Unterminated compressed integer in unpack"); |
a6ec74c1 JH |
2019 | } |
2020 | break; | |
2021 | case 'P': | |
49704364 WL |
2022 | if (symptr->howlen == e_star) |
2023 | Perl_croak(aTHX_ "'P' must have an explicit size in unpack"); | |
a6ec74c1 | 2024 | EXTEND(SP, 1); |
2d3e0934 | 2025 | if (s + sizeof(char*) <= strend) { |
08ca2aa3 | 2026 | char *aptr; |
f337b084 | 2027 | SHIFT_VAR(utf8, s, strend, aptr, datumtype); |
07409e01 | 2028 | DO_BO_UNPACK_PC(aptr); |
fc241834 | 2029 | /* newSVpvn generates undef if aptr is NULL */ |
59cd0e26 | 2030 | PUSHs(newSVpvn_flags(aptr, len, SVs_TEMP)); |
08ca2aa3 | 2031 | } |
a6ec74c1 JH |
2032 | break; |
2033 | #ifdef HAS_QUAD | |
2034 | case 'q': | |
73cb7263 | 2035 | while (len-- > 0) { |
08ca2aa3 | 2036 | Quad_t aquad; |
f337b084 TH |
2037 | SHIFT_VAR(utf8, s, strend, aquad, datumtype); |
2038 | DO_BO_UNPACK(aquad, 64); | |
08ca2aa3 | 2039 | if (!checksum) |
6e449a3a MHM |
2040 | mPUSHs(aquad >= IV_MIN && aquad <= IV_MAX ? |
2041 | newSViv((IV)aquad) : newSVnv((NV)aquad)); | |
73cb7263 NC |
2042 | else if (checksum > bits_in_uv) |
2043 | cdouble += (NV)aquad; | |
2044 | else | |
2045 | cuv += aquad; | |
2046 | } | |
a6ec74c1 JH |
2047 | break; |
2048 | case 'Q': | |
73cb7263 | 2049 | while (len-- > 0) { |
08ca2aa3 | 2050 | Uquad_t auquad; |
f337b084 TH |
2051 | SHIFT_VAR(utf8, s, strend, auquad, datumtype); |
2052 | DO_BO_UNPACK(auquad, 64); | |
08ca2aa3 | 2053 | if (!checksum) |
6e449a3a MHM |
2054 | mPUSHs(auquad <= UV_MAX ? |
2055 | newSVuv((UV)auquad) : newSVnv((NV)auquad)); | |
73cb7263 NC |
2056 | else if (checksum > bits_in_uv) |
2057 | cdouble += (NV)auquad; | |
2058 | else | |
2059 | cuv += auquad; | |
a6ec74c1 JH |
2060 | } |
2061 | break; | |
08ca2aa3 | 2062 | #endif /* HAS_QUAD */ |
a6ec74c1 JH |
2063 | /* float and double added gnb@melba.bby.oz.au 22/11/89 */ |
2064 | case 'f': | |
73cb7263 | 2065 | while (len-- > 0) { |
08ca2aa3 | 2066 | float afloat; |
f337b084 | 2067 | SHIFT_VAR(utf8, s, strend, afloat, datumtype); |
08ca2aa3 TH |
2068 | DO_BO_UNPACK_N(afloat, float); |
2069 | if (!checksum) | |
6e449a3a | 2070 | mPUSHn(afloat); |
08ca2aa3 | 2071 | else |
73cb7263 | 2072 | cdouble += afloat; |
fc241834 | 2073 | } |
a6ec74c1 JH |
2074 | break; |
2075 | case 'd': | |
73cb7263 | 2076 | while (len-- > 0) { |
08ca2aa3 | 2077 | double adouble; |
f337b084 | 2078 | SHIFT_VAR(utf8, s, strend, adouble, datumtype); |
08ca2aa3 TH |
2079 | DO_BO_UNPACK_N(adouble, double); |
2080 | if (!checksum) | |
6e449a3a | 2081 | mPUSHn(adouble); |
08ca2aa3 | 2082 | else |
73cb7263 | 2083 | cdouble += adouble; |
fc241834 | 2084 | } |
a6ec74c1 | 2085 | break; |
92d41999 | 2086 | case 'F': |
73cb7263 | 2087 | while (len-- > 0) { |
08ca2aa3 | 2088 | NV anv; |
f337b084 | 2089 | SHIFT_VAR(utf8, s, strend, anv, datumtype); |
08ca2aa3 TH |
2090 | DO_BO_UNPACK_N(anv, NV); |
2091 | if (!checksum) | |
6e449a3a | 2092 | mPUSHn(anv); |
08ca2aa3 | 2093 | else |
73cb7263 | 2094 | cdouble += anv; |
fc241834 | 2095 | } |
92d41999 JH |
2096 | break; |
2097 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) | |
2098 | case 'D': | |
73cb7263 | 2099 | while (len-- > 0) { |
08ca2aa3 | 2100 | long double aldouble; |
f337b084 | 2101 | SHIFT_VAR(utf8, s, strend, aldouble, datumtype); |
08ca2aa3 TH |
2102 | DO_BO_UNPACK_N(aldouble, long double); |
2103 | if (!checksum) | |
6e449a3a | 2104 | mPUSHn(aldouble); |
08ca2aa3 TH |
2105 | else |
2106 | cdouble += aldouble; | |
92d41999 JH |
2107 | } |
2108 | break; | |
2109 | #endif | |
a6ec74c1 | 2110 | case 'u': |
08ca2aa3 | 2111 | { |
f7fe979e | 2112 | const STRLEN l = (STRLEN) (strend - s) * 3 / 4; |
561b68a9 | 2113 | sv = sv_2mortal(newSV(l)); |
08ca2aa3 TH |
2114 | if (l) SvPOK_on(sv); |
2115 | } | |
2116 | if (utf8) { | |
2117 | while (next_uni_uu(aTHX_ &s, strend, &len)) { | |
2118 | I32 a, b, c, d; | |
db187877 | 2119 | char hunk[3]; |
08ca2aa3 | 2120 | |
08ca2aa3 TH |
2121 | while (len > 0) { |
2122 | next_uni_uu(aTHX_ &s, strend, &a); | |
2123 | next_uni_uu(aTHX_ &s, strend, &b); | |
2124 | next_uni_uu(aTHX_ &s, strend, &c); | |
2125 | next_uni_uu(aTHX_ &s, strend, &d); | |
2126 | hunk[0] = (char)((a << 2) | (b >> 4)); | |
2127 | hunk[1] = (char)((b << 4) | (c >> 2)); | |
2128 | hunk[2] = (char)((c << 6) | d); | |
2129 | sv_catpvn(sv, hunk, (len > 3) ? 3 : len); | |
2130 | len -= 3; | |
2131 | } | |
2132 | if (s < strend) { | |
f7fe979e AL |
2133 | if (*s == '\n') { |
2134 | s++; | |
2135 | } | |
08ca2aa3 TH |
2136 | else { |
2137 | /* possible checksum byte */ | |
f7fe979e AL |
2138 | const char *skip = s+UTF8SKIP(s); |
2139 | if (skip < strend && *skip == '\n') | |
2140 | s = skip+1; | |
08ca2aa3 TH |
2141 | } |
2142 | } | |
2143 | } | |
2144 | } else { | |
fc241834 RGS |
2145 | while (s < strend && *s > ' ' && ISUUCHAR(*s)) { |
2146 | I32 a, b, c, d; | |
db187877 | 2147 | char hunk[3]; |
a6ec74c1 | 2148 | |
fc241834 RGS |
2149 | len = PL_uudmap[*(U8*)s++] & 077; |
2150 | while (len > 0) { | |
2151 | if (s < strend && ISUUCHAR(*s)) | |
2152 | a = PL_uudmap[*(U8*)s++] & 077; | |
2153 | else | |
2154 | a = 0; | |
2155 | if (s < strend && ISUUCHAR(*s)) | |
2156 | b = PL_uudmap[*(U8*)s++] & 077; | |
2157 | else | |
2158 | b = 0; | |
2159 | if (s < strend && ISUUCHAR(*s)) | |
2160 | c = PL_uudmap[*(U8*)s++] & 077; | |
2161 | else | |
2162 | c = 0; | |
2163 | if (s < strend && ISUUCHAR(*s)) | |
2164 | d = PL_uudmap[*(U8*)s++] & 077; | |
2165 | else | |
2166 | d = 0; | |
2167 | hunk[0] = (char)((a << 2) | (b >> 4)); | |
2168 | hunk[1] = (char)((b << 4) | (c >> 2)); | |
2169 | hunk[2] = (char)((c << 6) | d); | |
2170 | sv_catpvn(sv, hunk, (len > 3) ? 3 : len); | |
2171 | len -= 3; | |
2172 | } | |
2173 | if (*s == '\n') | |
2174 | s++; | |
2175 | else /* possible checksum byte */ | |
2176 | if (s + 1 < strend && s[1] == '\n') | |
2177 | s += 2; | |
a6ec74c1 | 2178 | } |
08ca2aa3 TH |
2179 | } |
2180 | XPUSHs(sv); | |
a6ec74c1 JH |
2181 | break; |
2182 | } | |
49704364 | 2183 | |
a6ec74c1 | 2184 | if (checksum) { |
1109a392 | 2185 | if (strchr("fFdD", TYPE_NO_MODIFIERS(datumtype)) || |
92d41999 | 2186 | (checksum > bits_in_uv && |
08ca2aa3 TH |
2187 | strchr("cCsSiIlLnNUWvVqQjJ", TYPE_NO_MODIFIERS(datumtype))) ) { |
2188 | NV trouble, anv; | |
a6ec74c1 | 2189 | |
08ca2aa3 | 2190 | anv = (NV) (1 << (checksum & 15)); |
a6ec74c1 JH |
2191 | while (checksum >= 16) { |
2192 | checksum -= 16; | |
08ca2aa3 | 2193 | anv *= 65536.0; |
a6ec74c1 | 2194 | } |
a6ec74c1 | 2195 | while (cdouble < 0.0) |
08ca2aa3 TH |
2196 | cdouble += anv; |
2197 | cdouble = Perl_modf(cdouble / anv, &trouble) * anv; | |
c4c5f44a | 2198 | sv = newSVnv(cdouble); |
a6ec74c1 JH |
2199 | } |
2200 | else { | |
fa8ec7c1 NC |
2201 | if (checksum < bits_in_uv) { |
2202 | UV mask = ((UV)1 << checksum) - 1; | |
92d41999 | 2203 | cuv &= mask; |
a6ec74c1 | 2204 | } |
c4c5f44a | 2205 | sv = newSVuv(cuv); |
a6ec74c1 | 2206 | } |
6e449a3a | 2207 | mXPUSHs(sv); |
a6ec74c1 JH |
2208 | checksum = 0; |
2209 | } | |
fc241834 | 2210 | |
49704364 WL |
2211 | if (symptr->flags & FLAG_SLASH){ |
2212 | if (SP - PL_stack_base - start_sp_offset <= 0) | |
2213 | Perl_croak(aTHX_ "'/' must follow a numeric type in unpack"); | |
2214 | if( next_symbol(symptr) ){ | |
2215 | if( symptr->howlen == e_number ) | |
2216 | Perl_croak(aTHX_ "Count after length/code in unpack" ); | |
2217 | if( beyond ){ | |
2218 | /* ...end of char buffer then no decent length available */ | |
2219 | Perl_croak(aTHX_ "length/code after end of string in unpack" ); | |
2220 | } else { | |
2221 | /* take top of stack (hope it's numeric) */ | |
2222 | len = POPi; | |
2223 | if( len < 0 ) | |
2224 | Perl_croak(aTHX_ "Negative '/' count in unpack" ); | |
2225 | } | |
2226 | } else { | |
2227 | Perl_croak(aTHX_ "Code missing after '/' in unpack" ); | |
2228 | } | |
2229 | datumtype = symptr->code; | |
21c16052 | 2230 | explicit_length = FALSE; |
49704364 WL |
2231 | goto redo_switch; |
2232 | } | |
a6ec74c1 | 2233 | } |
49704364 | 2234 | |
18529408 IZ |
2235 | if (new_s) |
2236 | *new_s = s; | |
2237 | PUTBACK; | |
2238 | return SP - PL_stack_base - start_sp_offset; | |
2239 | } | |
2240 | ||
2241 | PP(pp_unpack) | |
2242 | { | |
97aff369 | 2243 | dVAR; |
18529408 | 2244 | dSP; |
bab9c0ac | 2245 | dPOPPOPssrl; |
18529408 IZ |
2246 | I32 gimme = GIMME_V; |
2247 | STRLEN llen; | |
2248 | STRLEN rlen; | |
5c144d81 NC |
2249 | const char *pat = SvPV_const(left, llen); |
2250 | const char *s = SvPV_const(right, rlen); | |
f7fe979e AL |
2251 | const char *strend = s + rlen; |
2252 | const char *patend = pat + llen; | |
08ca2aa3 | 2253 | I32 cnt; |
18529408 IZ |
2254 | |
2255 | PUTBACK; | |
7accc089 | 2256 | cnt = unpackstring(pat, patend, s, strend, |
49704364 | 2257 | ((gimme == G_SCALAR) ? FLAG_UNPACK_ONLY_ONE : 0) |
f337b084 | 2258 | | (DO_UTF8(right) ? FLAG_DO_UTF8 : 0)); |
49704364 | 2259 | |
18529408 IZ |
2260 | SPAGAIN; |
2261 | if ( !cnt && gimme == G_SCALAR ) | |
2262 | PUSHs(&PL_sv_undef); | |
a6ec74c1 JH |
2263 | RETURN; |
2264 | } | |
2265 | ||
f337b084 | 2266 | STATIC U8 * |
f7fe979e | 2267 | doencodes(U8 *h, const char *s, I32 len) |
a6ec74c1 | 2268 | { |
f337b084 | 2269 | *h++ = PL_uuemap[len]; |
a6ec74c1 | 2270 | while (len > 2) { |
f337b084 TH |
2271 | *h++ = PL_uuemap[(077 & (s[0] >> 2))]; |
2272 | *h++ = PL_uuemap[(077 & (((s[0] << 4) & 060) | ((s[1] >> 4) & 017)))]; | |
2273 | *h++ = PL_uuemap[(077 & (((s[1] << 2) & 074) | ((s[2] >> 6) & 03)))]; | |
2274 | *h++ = PL_uuemap[(077 & (s[2] & 077))]; | |
a6ec74c1 JH |
2275 | s += 3; |
2276 | len -= 3; | |
2277 | } | |
2278 | if (len > 0) { | |
f7fe979e | 2279 | const char r = (len > 1 ? s[1] : '\0'); |
f337b084 TH |
2280 | *h++ = PL_uuemap[(077 & (s[0] >> 2))]; |
2281 | *h++ = PL_uuemap[(077 & (((s[0] << 4) & 060) | ((r >> 4) & 017)))]; | |
2282 | *h++ = PL_uuemap[(077 & ((r << 2) & 074))]; | |
2283 | *h++ = PL_uuemap[0]; | |
a6ec74c1 | 2284 | } |
f337b084 TH |
2285 | *h++ = '\n'; |
2286 | return h; | |
a6ec74c1 JH |
2287 | } |
2288 | ||
2289 | STATIC SV * | |
f7fe979e | 2290 | S_is_an_int(pTHX_ const char *s, STRLEN l) |
a6ec74c1 | 2291 | { |
8b6e33c7 AL |
2292 | SV *result = newSVpvn(s, l); |
2293 | char *const result_c = SvPV_nolen(result); /* convenience */ | |
2294 | char *out = result_c; | |
2295 | bool skip = 1; | |
2296 | bool ignore = 0; | |
a6ec74c1 | 2297 | |
7918f24d NC |
2298 | PERL_ARGS_ASSERT_IS_AN_INT; |
2299 | ||
a6ec74c1 JH |
2300 | while (*s) { |
2301 | switch (*s) { | |
2302 | case ' ': | |
2303 | break; | |
2304 | case '+': | |
2305 | if (!skip) { | |
2306 | SvREFCNT_dec(result); | |
2307 | return (NULL); | |
2308 | } | |
2309 | break; | |
2310 | case '0': | |
2311 | case '1': | |
2312 | case '2': | |
2313 | case '3': | |
2314 | case '4': | |
2315 | case '5': | |
2316 | case '6': | |
2317 | case '7': | |
2318 | case '8': | |
2319 | case '9': | |
2320 | skip = 0; | |
2321 | if (!ignore) { | |
2322 | *(out++) = *s; | |
2323 | } | |
2324 | break; | |
2325 | case '.': | |
2326 | ignore = 1; | |
2327 | break; | |
2328 | default: | |
2329 | SvREFCNT_dec(result); | |
2330 | return (NULL); | |
2331 | } | |
2332 | s++; | |
2333 | } | |
2334 | *(out++) = '\0'; | |
2335 | SvCUR_set(result, out - result_c); | |
2336 | return (result); | |
2337 | } | |
2338 | ||
2339 | /* pnum must be '\0' terminated */ | |
2340 | STATIC int | |
2341 | S_div128(pTHX_ SV *pnum, bool *done) | |
2342 | { | |
8b6e33c7 AL |
2343 | STRLEN len; |
2344 | char * const s = SvPV(pnum, len); | |
2345 | char *t = s; | |
2346 | int m = 0; | |
2347 | ||
7918f24d NC |
2348 | PERL_ARGS_ASSERT_DIV128; |
2349 | ||
8b6e33c7 AL |
2350 | *done = 1; |
2351 | while (*t) { | |
2352 | const int i = m * 10 + (*t - '0'); | |
2353 | const int r = (i >> 7); /* r < 10 */ | |
2354 | m = i & 0x7F; | |
2355 | if (r) { | |
2356 | *done = 0; | |
2357 | } | |
2358 | *(t++) = '0' + r; | |
a6ec74c1 | 2359 | } |
8b6e33c7 AL |
2360 | *(t++) = '\0'; |
2361 | SvCUR_set(pnum, (STRLEN) (t - s)); | |
2362 | return (m); | |
a6ec74c1 JH |
2363 | } |
2364 | ||
18529408 | 2365 | /* |
7accc089 JH |
2366 | =for apidoc packlist |
2367 | ||
2368 | The engine implementing pack() Perl function. | |
2369 | ||
bfce84ec AL |
2370 | =cut |
2371 | */ | |
7accc089 JH |
2372 | |
2373 | void | |
f7fe979e | 2374 | Perl_packlist(pTHX_ SV *cat, const char *pat, const char *patend, register SV **beglist, SV **endlist ) |
7accc089 | 2375 | { |
97aff369 | 2376 | dVAR; |
aadb217d JH |
2377 | tempsym_t sym; |
2378 | ||
7918f24d NC |
2379 | PERL_ARGS_ASSERT_PACKLIST; |
2380 | ||
f7fe979e | 2381 | TEMPSYM_INIT(&sym, pat, patend, FLAG_PACK); |
49704364 | 2382 | |
f337b084 TH |
2383 | /* We're going to do changes through SvPVX(cat). Make sure it's valid. |
2384 | Also make sure any UTF8 flag is loaded */ | |
56eb0262 | 2385 | SvPV_force_nolen(cat); |
bfce84ec AL |
2386 | if (DO_UTF8(cat)) |
2387 | sym.flags |= FLAG_PARSE_UTF8 | FLAG_DO_UTF8; | |
f337b084 | 2388 | |
49704364 WL |
2389 | (void)pack_rec( cat, &sym, beglist, endlist ); |
2390 | } | |
2391 | ||
f337b084 TH |
2392 | /* like sv_utf8_upgrade, but also repoint the group start markers */ |
2393 | STATIC void | |
2394 | marked_upgrade(pTHX_ SV *sv, tempsym_t *sym_ptr) { | |
2395 | STRLEN len; | |
2396 | tempsym_t *group; | |
f7fe979e AL |
2397 | const char *from_ptr, *from_start, *from_end, **marks, **m; |
2398 | char *to_start, *to_ptr; | |
f337b084 TH |
2399 | |
2400 | if (SvUTF8(sv)) return; | |
2401 | ||
aa07b2f6 | 2402 | from_start = SvPVX_const(sv); |
f337b084 TH |
2403 | from_end = from_start + SvCUR(sv); |
2404 | for (from_ptr = from_start; from_ptr < from_end; from_ptr++) | |
2405 | if (!NATIVE_IS_INVARIANT(*from_ptr)) break; | |
2406 | if (from_ptr == from_end) { | |
2407 | /* Simple case: no character needs to be changed */ | |
2408 | SvUTF8_on(sv); | |
2409 | return; | |
2410 | } | |
2411 | ||
3473cf63 | 2412 | len = (from_end-from_ptr)*UTF8_EXPAND+(from_ptr-from_start)+1; |
a02a5408 | 2413 | Newx(to_start, len, char); |
f337b084 TH |
2414 | Copy(from_start, to_start, from_ptr-from_start, char); |
2415 | to_ptr = to_start + (from_ptr-from_start); | |
2416 | ||
a02a5408 | 2417 | Newx(marks, sym_ptr->level+2, const char *); |
f337b084 TH |
2418 | for (group=sym_ptr; group; group = group->previous) |
2419 | marks[group->level] = from_start + group->strbeg; | |
2420 | marks[sym_ptr->level+1] = from_end+1; | |
2421 | for (m = marks; *m < from_ptr; m++) | |
2422 | *m = to_start + (*m-from_start); | |
2423 | ||
2424 | for (;from_ptr < from_end; from_ptr++) { | |
2425 | while (*m == from_ptr) *m++ = to_ptr; | |
230e1fce | 2426 | to_ptr = (char *) uvchr_to_utf8((U8 *) to_ptr, *(U8 *) from_ptr); |
f337b084 TH |
2427 | } |
2428 | *to_ptr = 0; | |
2429 | ||
2430 | while (*m == from_ptr) *m++ = to_ptr; | |
2431 | if (m != marks + sym_ptr->level+1) { | |
2432 | Safefree(marks); | |
2433 | Safefree(to_start); | |
5f5991a0 | 2434 | Perl_croak(aTHX_ "panic: marks beyond string end"); |
f337b084 TH |
2435 | } |
2436 | for (group=sym_ptr; group; group = group->previous) | |
2437 | group->strbeg = marks[group->level] - to_start; | |
2438 | Safefree(marks); | |
2439 | ||
2440 | if (SvOOK(sv)) { | |
2441 | if (SvIVX(sv)) { | |
b162af07 | 2442 | SvLEN_set(sv, SvLEN(sv) + SvIVX(sv)); |
f337b084 TH |
2443 | from_start -= SvIVX(sv); |
2444 | SvIV_set(sv, 0); | |
2445 | } | |
2446 | SvFLAGS(sv) &= ~SVf_OOK; | |
2447 | } | |
2448 | if (SvLEN(sv) != 0) | |
2449 | Safefree(from_start); | |
f880fe2f | 2450 | SvPV_set(sv, to_start); |
b162af07 SP |
2451 | SvCUR_set(sv, to_ptr - to_start); |
2452 | SvLEN_set(sv, len); | |
f337b084 TH |
2453 | SvUTF8_on(sv); |
2454 | } | |
2455 | ||
2456 | /* Exponential string grower. Makes string extension effectively O(n) | |
2457 | needed says how many extra bytes we need (not counting the final '\0') | |
2458 | Only grows the string if there is an actual lack of space | |
2459 | */ | |
2460 | STATIC char * | |
0bd48802 | 2461 | S_sv_exp_grow(pTHX_ SV *sv, STRLEN needed) { |
f7fe979e AL |
2462 | const STRLEN cur = SvCUR(sv); |
2463 | const STRLEN len = SvLEN(sv); | |
f337b084 | 2464 | STRLEN extend; |
7918f24d NC |
2465 | |
2466 | PERL_ARGS_ASSERT_SV_EXP_GROW; | |
2467 | ||
f337b084 TH |
2468 | if (len - cur > needed) return SvPVX(sv); |
2469 | extend = needed > len ? needed : len; | |
2470 | return SvGROW(sv, len+extend+1); | |
2471 | } | |
49704364 WL |
2472 | |
2473 | STATIC | |
2474 | SV ** | |
f337b084 | 2475 | S_pack_rec(pTHX_ SV *cat, tempsym_t* symptr, SV **beglist, SV **endlist ) |
49704364 | 2476 | { |
97aff369 | 2477 | dVAR; |
49704364 | 2478 | tempsym_t lookahead; |
f337b084 TH |
2479 | I32 items = endlist - beglist; |
2480 | bool found = next_symbol(symptr); | |
2481 | bool utf8 = (symptr->flags & FLAG_PARSE_UTF8) ? 1 : 0; | |
041457d9 | 2482 | bool warn_utf8 = ckWARN(WARN_UTF8); |
f337b084 | 2483 | |
7918f24d NC |
2484 | PERL_ARGS_ASSERT_PACK_REC; |
2485 | ||
f337b084 TH |
2486 | if (symptr->level == 0 && found && symptr->code == 'U') { |
2487 | marked_upgrade(aTHX_ cat, symptr); | |
2488 | symptr->flags |= FLAG_DO_UTF8; | |
2489 | utf8 = 0; | |
49704364 | 2490 | } |
f337b084 | 2491 | symptr->strbeg = SvCUR(cat); |
49704364 WL |
2492 | |
2493 | while (found) { | |
f337b084 TH |
2494 | SV *fromstr; |
2495 | STRLEN fromlen; | |
2496 | I32 len; | |
a0714e2c | 2497 | SV *lengthcode = NULL; |
49704364 | 2498 | I32 datumtype = symptr->code; |
f337b084 TH |
2499 | howlen_t howlen = symptr->howlen; |
2500 | char *start = SvPVX(cat); | |
2501 | char *cur = start + SvCUR(cat); | |
49704364 | 2502 | |
f337b084 TH |
2503 | #define NEXTFROM (lengthcode ? lengthcode : items-- > 0 ? *beglist++ : &PL_sv_no) |
2504 | ||
2505 | switch (howlen) { | |
fc241834 | 2506 | case e_star: |
f337b084 TH |
2507 | len = strchr("@Xxu", TYPE_NO_MODIFIERS(datumtype)) ? |
2508 | 0 : items; | |
2509 | break; | |
2510 | default: | |
2511 | /* e_no_len and e_number */ | |
2512 | len = symptr->length; | |
49704364 WL |
2513 | break; |
2514 | } | |
2515 | ||
f337b084 | 2516 | if (len) { |
a7a3cfaa | 2517 | packprops_t props = packprops[TYPE_NO_ENDIANNESS(datumtype)]; |
f337b084 | 2518 | |
a7a3cfaa TH |
2519 | if (props && !(props & PACK_SIZE_UNPREDICTABLE)) { |
2520 | /* We can process this letter. */ | |
2521 | STRLEN size = props & PACK_SIZE_MASK; | |
2522 | GROWING(utf8, cat, start, cur, (STRLEN) len * size); | |
2523 | } | |
f337b084 TH |
2524 | } |
2525 | ||
49704364 WL |
2526 | /* Look ahead for next symbol. Do we have code/code? */ |
2527 | lookahead = *symptr; | |
2528 | found = next_symbol(&lookahead); | |
246f24af TH |
2529 | if (symptr->flags & FLAG_SLASH) { |
2530 | IV count; | |
f337b084 | 2531 | if (!found) Perl_croak(aTHX_ "Code missing after '/' in pack"); |
246f24af TH |
2532 | if (strchr("aAZ", lookahead.code)) { |
2533 | if (lookahead.howlen == e_number) count = lookahead.length; | |
2534 | else { | |
ce399ba6 NC |
2535 | if (items > 0) { |
2536 | if (SvGAMAGIC(*beglist)) { | |
2537 | /* Avoid reading the active data more than once | |
2538 | by copying it to a temporary. */ | |
2539 | STRLEN len; | |
2540 | const char *const pv = SvPV_const(*beglist, len); | |
740cce10 | 2541 | SV *const temp |
59cd0e26 NC |
2542 | = newSVpvn_flags(pv, len, |
2543 | SVs_TEMP | SvUTF8(*beglist)); | |
ce399ba6 NC |
2544 | *beglist = temp; |
2545 | } | |
246f24af TH |
2546 | count = DO_UTF8(*beglist) ? |
2547 | sv_len_utf8(*beglist) : sv_len(*beglist); | |
ce399ba6 | 2548 | } |
246f24af TH |
2549 | else count = 0; |
2550 | if (lookahead.code == 'Z') count++; | |
2551 | } | |
2552 | } else { | |
2553 | if (lookahead.howlen == e_number && lookahead.length < items) | |
2554 | count = lookahead.length; | |
2555 | else count = items; | |
2556 | } | |
2557 | lookahead.howlen = e_number; | |
2558 | lookahead.length = count; | |
2559 | lengthcode = sv_2mortal(newSViv(count)); | |
a6ec74c1 | 2560 | } |
49704364 | 2561 | |
fc241834 RGS |
2562 | /* Code inside the switch must take care to properly update |
2563 | cat (CUR length and '\0' termination) if it updated *cur and | |
f337b084 | 2564 | doesn't simply leave using break */ |
1109a392 | 2565 | switch(TYPE_NO_ENDIANNESS(datumtype)) { |
a6ec74c1 | 2566 | default: |
f337b084 TH |
2567 | Perl_croak(aTHX_ "Invalid type '%c' in pack", |
2568 | (int) TYPE_NO_MODIFIERS(datumtype)); | |
a6ec74c1 | 2569 | case '%': |
49704364 | 2570 | Perl_croak(aTHX_ "'%%' may not be used in pack"); |
28be1210 TH |
2571 | { |
2572 | char *from; | |
2573 | #ifdef PERL_PACK_CAN_SHRIEKSIGN | |
2574 | case '.' | TYPE_IS_SHRIEKING: | |
2575 | #endif | |
2576 | case '.': | |
2577 | if (howlen == e_star) from = start; | |
2578 | else if (len == 0) from = cur; | |
2579 | else { | |
2580 | tempsym_t *group = symptr; | |
2581 | ||
2582 | while (--len && group) group = group->previous; | |
2583 | from = group ? start + group->strbeg : start; | |
2584 | } | |
2585 | fromstr = NEXTFROM; | |
2586 | len = SvIV(fromstr); | |
2587 | goto resize; | |
2588 | #ifdef PERL_PACK_CAN_SHRIEKSIGN | |
2589 | case '@' | TYPE_IS_SHRIEKING: | |
2590 | #endif | |
a6ec74c1 | 2591 | case '@': |
28be1210 TH |
2592 | from = start + symptr->strbeg; |
2593 | resize: | |
2594 | #ifdef PERL_PACK_CAN_SHRIEKSIGN | |
2595 | if (utf8 && !(datumtype & TYPE_IS_SHRIEKING)) | |
2596 | #else /* PERL_PACK_CAN_SHRIEKSIGN */ | |
2597 | if (utf8) | |
2598 | #endif | |
2599 | if (len >= 0) { | |
2600 | while (len && from < cur) { | |
2601 | from += UTF8SKIP(from); | |
2602 | len--; | |
2603 | } | |
2604 | if (from > cur) | |
2605 | Perl_croak(aTHX_ "Malformed UTF-8 string in pack"); | |
2606 | if (len) { | |
2607 | /* Here we know from == cur */ | |
2608 | grow: | |
2609 | GROWING(0, cat, start, cur, len); | |
2610 | Zero(cur, len, char); | |
2611 | cur += len; | |
2612 | } else if (from < cur) { | |
2613 | len = cur - from; | |
2614 | goto shrink; | |
2615 | } else goto no_change; | |
2616 | } else { | |
2617 | cur = from; | |
2618 | len = -len; | |
2619 | goto utf8_shrink; | |
f337b084 | 2620 | } |
28be1210 TH |
2621 | else { |
2622 | len -= cur - from; | |
f337b084 | 2623 | if (len > 0) goto grow; |
28be1210 | 2624 | if (len == 0) goto no_change; |
fc241834 | 2625 | len = -len; |
28be1210 | 2626 | goto shrink; |
f337b084 | 2627 | } |
a6ec74c1 | 2628 | break; |
28be1210 | 2629 | } |
fc241834 | 2630 | case '(': { |
49704364 | 2631 | tempsym_t savsym = *symptr; |
66c611c5 MHM |
2632 | U32 group_modifiers = TYPE_MODIFIERS(datumtype & ~symptr->flags); |
2633 | symptr->flags |= group_modifiers; | |
49704364 WL |
2634 | symptr->patend = savsym.grpend; |
2635 | symptr->level++; | |
f337b084 | 2636 | symptr->previous = &lookahead; |
18529408 | 2637 | while (len--) { |
f337b084 TH |
2638 | U32 was_utf8; |
2639 | if (utf8) symptr->flags |= FLAG_PARSE_UTF8; | |
2640 | else symptr->flags &= ~FLAG_PARSE_UTF8; | |
2641 | was_utf8 = SvUTF8(cat); | |
49704364 | 2642 | symptr->patptr = savsym.grpbeg; |
f337b084 TH |
2643 | beglist = pack_rec(cat, symptr, beglist, endlist); |
2644 | if (SvUTF8(cat) != was_utf8) | |
2645 | /* This had better be an upgrade while in utf8==0 mode */ | |
2646 | utf8 = 1; | |
2647 | ||
49704364 | 2648 | if (savsym.howlen == e_star && beglist == endlist) |
18529408 IZ |
2649 | break; /* No way to continue */ |
2650 | } | |
ee790063 | 2651 | items = endlist - beglist; |
f337b084 TH |
2652 | lookahead.flags = symptr->flags & ~group_modifiers; |
2653 | goto no_change; | |
18529408 | 2654 | } |
62f95557 IZ |
2655 | case 'X' | TYPE_IS_SHRIEKING: |
2656 | if (!len) /* Avoid division by 0 */ | |
2657 | len = 1; | |
f337b084 TH |
2658 | if (utf8) { |
2659 | char *hop, *last; | |
2660 | I32 l = len; | |
2661 | hop = last = start; | |
2662 | while (hop < cur) { | |
2663 | hop += UTF8SKIP(hop); | |
2664 | if (--l == 0) { | |
2665 | last = hop; | |
2666 | l = len; | |
2667 | } | |
2668 | } | |
2669 | if (last > cur) | |
2670 | Perl_croak(aTHX_ "Malformed UTF-8 string in pack"); | |
2671 | cur = last; | |
2672 | break; | |
2673 | } | |
2674 | len = (cur-start) % len; | |
62f95557 | 2675 | /* FALL THROUGH */ |
a6ec74c1 | 2676 | case 'X': |
f337b084 TH |
2677 | if (utf8) { |
2678 | if (len < 1) goto no_change; | |
28be1210 | 2679 | utf8_shrink: |
f337b084 TH |
2680 | while (len > 0) { |
2681 | if (cur <= start) | |
28be1210 TH |
2682 | Perl_croak(aTHX_ "'%c' outside of string in pack", |
2683 | (int) TYPE_NO_MODIFIERS(datumtype)); | |
f337b084 TH |
2684 | while (--cur, UTF8_IS_CONTINUATION(*cur)) { |
2685 | if (cur <= start) | |
28be1210 TH |
2686 | Perl_croak(aTHX_ "'%c' outside of string in pack", |
2687 | (int) TYPE_NO_MODIFIERS(datumtype)); | |
f337b084 TH |
2688 | } |
2689 | len--; | |
2690 | } | |
2691 | } else { | |
fc241834 | 2692 | shrink: |
f337b084 | 2693 | if (cur - start < len) |
28be1210 TH |
2694 | Perl_croak(aTHX_ "'%c' outside of string in pack", |
2695 | (int) TYPE_NO_MODIFIERS(datumtype)); | |
f337b084 TH |
2696 | cur -= len; |
2697 | } | |
2698 | if (cur < start+symptr->strbeg) { | |
2699 | /* Make sure group starts don't point into the void */ | |
2700 | tempsym_t *group; | |
9e27e96a | 2701 | const STRLEN length = cur-start; |
f337b084 TH |
2702 | for (group = symptr; |
2703 | group && length < group->strbeg; | |
2704 | group = group->previous) group->strbeg = length; | |
2705 | lookahead.strbeg = length; | |
2706 | } | |
a6ec74c1 | 2707 | break; |
fc241834 RGS |
2708 | case 'x' | TYPE_IS_SHRIEKING: { |
2709 | I32 ai32; | |
62f95557 IZ |
2710 | if (!len) /* Avoid division by 0 */ |
2711 | len = 1; | |
230e1fce | 2712 | if (utf8) ai32 = utf8_length((U8 *) start, (U8 *) cur) % len; |
fc241834 RGS |
2713 | else ai32 = (cur - start) % len; |
2714 | if (ai32 == 0) goto no_change; | |
2715 | len -= ai32; | |
2716 | } | |
2717 | /* FALL THROUGH */ | |
a6ec74c1 | 2718 | case 'x': |
f337b084 | 2719 | goto grow; |
a6ec74c1 JH |
2720 | case 'A': |
2721 | case 'Z': | |
f337b084 | 2722 | case 'a': { |
f7fe979e | 2723 | const char *aptr; |
f337b084 | 2724 | |
a6ec74c1 | 2725 | fromstr = NEXTFROM; |
e62f0680 | 2726 | aptr = SvPV_const(fromstr, fromlen); |
f337b084 | 2727 | if (DO_UTF8(fromstr)) { |
f7fe979e | 2728 | const char *end, *s; |
f337b084 TH |
2729 | |
2730 | if (!utf8 && !SvUTF8(cat)) { | |
2731 | marked_upgrade(aTHX_ cat, symptr); | |
2732 | lookahead.flags |= FLAG_DO_UTF8; | |
2733 | lookahead.strbeg = symptr->strbeg; | |
2734 | utf8 = 1; | |
2735 | start = SvPVX(cat); | |
2736 | cur = start + SvCUR(cat); | |
2737 | } | |
fc241834 | 2738 | if (howlen == e_star) { |
f337b084 TH |
2739 | if (utf8) goto string_copy; |
2740 | len = fromlen+1; | |
2741 | } | |
2742 | s = aptr; | |
2743 | end = aptr + fromlen; | |
2744 | fromlen = datumtype == 'Z' ? len-1 : len; | |
2745 | while ((I32) fromlen > 0 && s < end) { | |
2746 | s += UTF8SKIP(s); | |
2747 | fromlen--; | |
2748 | } | |
2749 | if (s > end) | |
2750 | Perl_croak(aTHX_ "Malformed UTF-8 string in pack"); | |
2751 | if (utf8) { | |
fc241834 | 2752 | len = fromlen; |
f337b084 TH |
2753 | if (datumtype == 'Z') len++; |
2754 | fromlen = s-aptr; | |
2755 | len += fromlen; | |
fc241834 | 2756 | |
f337b084 | 2757 | goto string_copy; |
fc241834 | 2758 | } |
f337b084 TH |
2759 | fromlen = len - fromlen; |
2760 | if (datumtype == 'Z') fromlen--; | |
2761 | if (howlen == e_star) { | |
2762 | len = fromlen; | |
2763 | if (datumtype == 'Z') len++; | |
fc241834 | 2764 | } |
f337b084 | 2765 | GROWING(0, cat, start, cur, len); |
fc241834 | 2766 | if (!uni_to_bytes(aTHX_ &aptr, end, cur, fromlen, |
f337b084 | 2767 | datumtype | TYPE_IS_PACK)) |
5f5991a0 | 2768 | Perl_croak(aTHX_ "panic: predicted utf8 length not available"); |
f337b084 | 2769 | cur += fromlen; |
a6ec74c1 | 2770 | len -= fromlen; |
f337b084 TH |
2771 | } else if (utf8) { |
2772 | if (howlen == e_star) { | |
2773 | len = fromlen; | |
2774 | if (datumtype == 'Z') len++; | |
a6ec74c1 | 2775 | } |
f337b084 TH |
2776 | if (len <= (I32) fromlen) { |
2777 | fromlen = len; | |
2778 | if (datumtype == 'Z' && fromlen > 0) fromlen--; | |
2779 | } | |
fc241834 | 2780 | /* assumes a byte expands to at most UTF8_EXPAND bytes on |
3473cf63 RGS |
2781 | upgrade, so: |
2782 | expected_length <= from_len*UTF8_EXPAND + (len-from_len) */ | |
2783 | GROWING(0, cat, start, cur, fromlen*(UTF8_EXPAND-1)+len); | |
f337b084 TH |
2784 | len -= fromlen; |
2785 | while (fromlen > 0) { | |
230e1fce | 2786 | cur = (char *) uvchr_to_utf8((U8 *) cur, * (U8 *) aptr); |
f337b084 TH |
2787 | aptr++; |
2788 | fromlen--; | |
fc241834 | 2789 | } |
f337b084 TH |
2790 | } else { |
2791 | string_copy: | |
2792 | if (howlen == e_star) { | |
2793 | len = fromlen; | |
2794 | if (datumtype == 'Z') len++; | |
2795 | } | |
2796 | if (len <= (I32) fromlen) { | |
2797 | fromlen = len; | |
2798 | if (datumtype == 'Z' && fromlen > 0) fromlen--; | |
a6ec74c1 | 2799 | } |
f337b084 TH |
2800 | GROWING(0, cat, start, cur, len); |
2801 | Copy(aptr, cur, fromlen, char); | |
2802 | cur += fromlen; | |
2803 | len -= fromlen; | |
a6ec74c1 | 2804 | } |
f337b084 TH |
2805 | memset(cur, datumtype == 'A' ? ' ' : '\0', len); |
2806 | cur += len; | |
3c4fb04a | 2807 | SvTAINT(cat); |
a6ec74c1 | 2808 | break; |
f337b084 | 2809 | } |
a6ec74c1 | 2810 | case 'B': |
f337b084 | 2811 | case 'b': { |
b83604b4 | 2812 | const char *str, *end; |
f337b084 TH |
2813 | I32 l, field_len; |
2814 | U8 bits; | |
2815 | bool utf8_source; | |
2816 | U32 utf8_flags; | |
a6ec74c1 | 2817 | |
fc241834 | 2818 | fromstr = NEXTFROM; |
b83604b4 | 2819 | str = SvPV_const(fromstr, fromlen); |
f337b084 TH |
2820 | end = str + fromlen; |
2821 | if (DO_UTF8(fromstr)) { | |
2822 | utf8_source = TRUE; | |
041457d9 | 2823 | utf8_flags = warn_utf8 ? 0 : UTF8_ALLOW_ANY; |
f337b084 TH |
2824 | } else { |
2825 | utf8_source = FALSE; | |
2826 | utf8_flags = 0; /* Unused, but keep compilers happy */ | |
2827 | } | |
2828 | if (howlen == e_star) len = fromlen; | |
2829 | field_len = (len+7)/8; | |
2830 | GROWING(utf8, cat, start, cur, field_len); | |
2831 | if (len > (I32)fromlen) len = fromlen; | |
2832 | bits = 0; | |
2833 | l = 0; | |
2834 | if (datumtype == 'B') | |
2835 | while (l++ < len) { | |
2836 | if (utf8_source) { | |
95b63a38 | 2837 | UV val = 0; |
f337b084 TH |
2838 | NEXT_UNI_VAL(val, cur, str, end, utf8_flags); |
2839 | bits |= val & 1; | |
2840 | } else bits |= *str++ & 1; | |
2841 | if (l & 7) bits <<= 1; | |
fc241834 | 2842 | else { |
f337b084 TH |
2843 | PUSH_BYTE(utf8, cur, bits); |
2844 | bits = 0; | |
a6ec74c1 JH |
2845 | } |
2846 | } | |
f337b084 TH |
2847 | else |
2848 | /* datumtype == 'b' */ | |
2849 | while (l++ < len) { | |
2850 | if (utf8_source) { | |
95b63a38 | 2851 | UV val = 0; |
f337b084 TH |
2852 | NEXT_UNI_VAL(val, cur, str, end, utf8_flags); |
2853 | if (val & 1) bits |= 0x80; | |
2854 | } else if (*str++ & 1) | |
2855 | bits |= 0x80; | |
2856 | if (l & 7) bits >>= 1; | |
fc241834 | 2857 | else { |
f337b084 TH |
2858 | PUSH_BYTE(utf8, cur, bits); |
2859 | bits = 0; | |
a6ec74c1 JH |
2860 | } |
2861 | } | |
f337b084 TH |
2862 | l--; |
2863 | if (l & 7) { | |
fc241834 | 2864 | if (datumtype == 'B') |
f337b084 | 2865 | bits <<= 7 - (l & 7); |
fc241834 | 2866 | else |
f337b084 TH |
2867 | bits >>= 7 - (l & 7); |
2868 | PUSH_BYTE(utf8, cur, bits); | |
2869 | l += 7; | |
a6ec74c1 | 2870 | } |
f337b084 TH |
2871 | /* Determine how many chars are left in the requested field */ |
2872 | l /= 8; | |
2873 | if (howlen == e_star) field_len = 0; | |
2874 | else field_len -= l; | |
2875 | Zero(cur, field_len, char); | |
2876 | cur += field_len; | |
a6ec74c1 | 2877 | break; |
f337b084 | 2878 | } |
a6ec74c1 | 2879 | case 'H': |
f337b084 | 2880 | case 'h': { |
10516c54 | 2881 | const char *str, *end; |
f337b084 TH |
2882 | I32 l, field_len; |
2883 | U8 bits; | |
2884 | bool utf8_source; | |
2885 | U32 utf8_flags; | |
a6ec74c1 | 2886 | |
fc241834 | 2887 | fromstr = NEXTFROM; |
10516c54 | 2888 | str = SvPV_const(fromstr, fromlen); |
f337b084 TH |
2889 | end = str + fromlen; |
2890 | if (DO_UTF8(fromstr)) { | |
2891 | utf8_source = TRUE; | |
041457d9 | 2892 | utf8_flags = warn_utf8 ? 0 : UTF8_ALLOW_ANY; |
f337b084 TH |
2893 | } else { |
2894 | utf8_source = FALSE; | |
2895 | utf8_flags = 0; /* Unused, but keep compilers happy */ | |
2896 | } | |
2897 | if (howlen == e_star) len = fromlen; | |
2898 | field_len = (len+1)/2; | |
2899 | GROWING(utf8, cat, start, cur, field_len); | |
2900 | if (!utf8 && len > (I32)fromlen) len = fromlen; | |
2901 | bits = 0; | |
2902 | l = 0; | |
2903 | if (datumtype == 'H') | |
2904 | while (l++ < len) { | |
2905 | if (utf8_source) { | |
95b63a38 | 2906 | UV val = 0; |
f337b084 TH |
2907 | NEXT_UNI_VAL(val, cur, str, end, utf8_flags); |
2908 | if (val < 256 && isALPHA(val)) | |
2909 | bits |= (val + 9) & 0xf; | |
a6ec74c1 | 2910 | else |
f337b084 TH |
2911 | bits |= val & 0xf; |
2912 | } else if (isALPHA(*str)) | |
2913 | bits |= (*str++ + 9) & 0xf; | |
2914 | else | |
2915 | bits |= *str++ & 0xf; | |
2916 | if (l & 1) bits <<= 4; | |
fc241834 | 2917 | else { |
f337b084 TH |
2918 | PUSH_BYTE(utf8, cur, bits); |
2919 | bits = 0; | |
a6ec74c1 JH |
2920 | } |
2921 | } | |
f337b084 TH |
2922 | else |
2923 | while (l++ < len) { | |
2924 | if (utf8_source) { | |
95b63a38 | 2925 | UV val = 0; |
f337b084 TH |
2926 | NEXT_UNI_VAL(val, cur, str, end, utf8_flags); |
2927 | if (val < 256 && isALPHA(val)) | |
2928 | bits |= ((val + 9) & 0xf) << 4; | |
a6ec74c1 | 2929 | else |
f337b084 TH |
2930 | bits |= (val & 0xf) << 4; |
2931 | } else if (isALPHA(*str)) | |
2932 | bits |= ((*str++ + 9) & 0xf) << 4; | |
2933 | else | |
2934 | bits |= (*str++ & 0xf) << 4; | |
2935 | if (l & 1) bits >>= 4; | |
fc241834 | 2936 | else { |
f337b084 TH |
2937 | PUSH_BYTE(utf8, cur, bits); |
2938 | bits = 0; | |
a6ec74c1 | 2939 | } |
fc241834 | 2940 | } |
f337b084 TH |
2941 | l--; |
2942 | if (l & 1) { | |
2943 | PUSH_BYTE(utf8, cur, bits); | |
2944 | l++; | |
2945 | } | |
2946 | /* Determine how many chars are left in the requested field */ | |
2947 | l /= 2; | |
2948 | if (howlen == e_star) field_len = 0; | |
2949 | else field_len -= l; | |
2950 | Zero(cur, field_len, char); | |
2951 | cur += field_len; | |
2952 | break; | |
fc241834 RGS |
2953 | } |
2954 | case 'c': | |
f337b084 TH |
2955 | while (len-- > 0) { |
2956 | IV aiv; | |
2957 | fromstr = NEXTFROM; | |
2958 | aiv = SvIV(fromstr); | |
a2a5de95 NC |
2959 | if ((-128 > aiv || aiv > 127)) |
2960 | Perl_ck_warner(aTHX_ packWARN(WARN_PACK), | |
2961 | "Character in 'c' format wrapped in pack"); | |
585ec06d | 2962 | PUSH_BYTE(utf8, cur, (U8)(aiv & 0xff)); |
a6ec74c1 JH |
2963 | } |
2964 | break; | |
2965 | case 'C': | |
f337b084 TH |
2966 | if (len == 0) { |
2967 | utf8 = (symptr->flags & FLAG_DO_UTF8) ? 1 : 0; | |
2968 | break; | |
2969 | } | |
a6ec74c1 | 2970 | while (len-- > 0) { |
f337b084 | 2971 | IV aiv; |
a6ec74c1 | 2972 | fromstr = NEXTFROM; |
f337b084 | 2973 | aiv = SvIV(fromstr); |
a2a5de95 NC |
2974 | if ((0 > aiv || aiv > 0xff)) |
2975 | Perl_ck_warner(aTHX_ packWARN(WARN_PACK), | |
2976 | "Character in 'C' format wrapped in pack"); | |
1651fc44 | 2977 | PUSH_BYTE(utf8, cur, (U8)(aiv & 0xff)); |
f337b084 | 2978 | } |
fc241834 RGS |
2979 | break; |
2980 | case 'W': { | |
2981 | char *end; | |
670f1322 | 2982 | U8 in_bytes = (U8)IN_BYTES; |
fc241834 RGS |
2983 | |
2984 | end = start+SvLEN(cat)-1; | |
2985 | if (utf8) end -= UTF8_MAXLEN-1; | |
2986 | while (len-- > 0) { | |
2987 | UV auv; | |
2988 | fromstr = NEXTFROM; | |
2989 | auv = SvUV(fromstr); | |
2990 | if (in_bytes) auv = auv % 0x100; | |
2991 | if (utf8) { | |
2992 | W_utf8: | |
2993 | if (cur > end) { | |
2994 | *cur = '\0'; | |
b162af07 | 2995 | SvCUR_set(cat, cur - start); |
fc241834 RGS |
2996 | |
2997 | GROWING(0, cat, start, cur, len+UTF8_MAXLEN); | |
2998 | end = start+SvLEN(cat)-UTF8_MAXLEN; | |
2999 | } | |
230e1fce NC |
3000 | cur = (char *) uvuni_to_utf8_flags((U8 *) cur, |
3001 | NATIVE_TO_UNI(auv), | |
041457d9 | 3002 | warn_utf8 ? |
230e1fce | 3003 | 0 : UNICODE_ALLOW_ANY); |
fc241834 RGS |
3004 | } else { |
3005 | if (auv >= 0x100) { | |
3006 | if (!SvUTF8(cat)) { | |
3007 | *cur = '\0'; | |
b162af07 | 3008 | SvCUR_set(cat, cur - start); |
fc241834 RGS |
3009 | marked_upgrade(aTHX_ cat, symptr); |
3010 | lookahead.flags |= FLAG_DO_UTF8; | |
3011 | lookahead.strbeg = symptr->strbeg; | |
3012 | utf8 = 1; | |
3013 | start = SvPVX(cat); | |
3014 | cur = start + SvCUR(cat); | |
3015 | end = start+SvLEN(cat)-UTF8_MAXLEN; | |
3016 | goto W_utf8; | |
3017 | } | |
a2a5de95 NC |
3018 | Perl_ck_warner(aTHX_ packWARN(WARN_PACK), |
3019 | "Character in 'W' format wrapped in pack"); | |
fc241834 RGS |
3020 | auv &= 0xff; |
3021 | } | |
3022 | if (cur >= end) { | |
3023 | *cur = '\0'; | |
b162af07 | 3024 | SvCUR_set(cat, cur - start); |
fc241834 RGS |
3025 | GROWING(0, cat, start, cur, len+1); |
3026 | end = start+SvLEN(cat)-1; | |
3027 | } | |
fe2774ed | 3028 | *(U8 *) cur++ = (U8)auv; |
a6ec74c1 JH |
3029 | } |
3030 | } | |
3031 | break; | |
fc241834 RGS |
3032 | } |
3033 | case 'U': { | |
3034 | char *end; | |
3035 | ||
3036 | if (len == 0) { | |
3037 | if (!(symptr->flags & FLAG_DO_UTF8)) { | |
3038 | marked_upgrade(aTHX_ cat, symptr); | |
3039 | lookahead.flags |= FLAG_DO_UTF8; | |
3040 | lookahead.strbeg = symptr->strbeg; | |
3041 | } | |
3042 | utf8 = 0; | |
3043 | goto no_change; | |
3044 | } | |
3045 | ||
3046 | end = start+SvLEN(cat); | |
3047 | if (!utf8) end -= UTF8_MAXLEN; | |
a6ec74c1 | 3048 | while (len-- > 0) { |
fc241834 | 3049 | UV auv; |
a6ec74c1 | 3050 | fromstr = NEXTFROM; |
fc241834 RGS |
3051 | auv = SvUV(fromstr); |
3052 | if (utf8) { | |
230e1fce | 3053 | U8 buffer[UTF8_MAXLEN], *endb; |
fc241834 | 3054 | endb = uvuni_to_utf8_flags(buffer, auv, |
041457d9 | 3055 | warn_utf8 ? |
fc241834 RGS |
3056 | 0 : UNICODE_ALLOW_ANY); |
3057 | if (cur+(endb-buffer)*UTF8_EXPAND >= end) { | |
3058 | *cur = '\0'; | |
b162af07 | 3059 | SvCUR_set(cat, cur - start); |
fc241834 RGS |
3060 | GROWING(0, cat, start, cur, |
3061 | len+(endb-buffer)*UTF8_EXPAND); | |
3062 | end = start+SvLEN(cat); | |
3063 | } | |
64844641 | 3064 | cur = bytes_to_uni(buffer, endb-buffer, cur); |
fc241834 RGS |
3065 | } else { |
3066 | if (cur >= end) { | |
3067 | *cur = '\0'; | |
b162af07 | 3068 | SvCUR_set(cat, cur - start); |
fc241834 RGS |
3069 | GROWING(0, cat, start, cur, len+UTF8_MAXLEN); |
3070 | end = start+SvLEN(cat)-UTF8_MAXLEN; | |
3071 | } | |
230e1fce | 3072 | cur = (char *) uvuni_to_utf8_flags((U8 *) cur, auv, |
041457d9 | 3073 | warn_utf8 ? |
230e1fce | 3074 | 0 : UNICODE_ALLOW_ANY); |
fc241834 | 3075 | } |
a6ec74c1 | 3076 | } |
a6ec74c1 | 3077 | break; |
fc241834 | 3078 | } |
a6ec74c1 JH |
3079 | /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */ |
3080 | case 'f': | |
a6ec74c1 | 3081 | while (len-- > 0) { |
f337b084 TH |
3082 | float afloat; |
3083 | NV anv; | |
a6ec74c1 | 3084 | fromstr = NEXTFROM; |
f337b084 | 3085 | anv = SvNV(fromstr); |
5cdb9e01 | 3086 | #ifdef __VOS__ |
f337b084 | 3087 | /* VOS does not automatically map a floating-point overflow |
fc241834 RGS |
3088 | during conversion from double to float into infinity, so we |
3089 | do it by hand. This code should either be generalized for | |
3090 | any OS that needs it, or removed if and when VOS implements | |
3091 | posix-976 (suggestion to support mapping to infinity). | |
3092 | Paul.Green@stratus.com 02-04-02. */ | |
3722f0dc PG |
3093 | { |
3094 | extern const float _float_constants[]; | |
f337b084 | 3095 | if (anv > FLT_MAX) |
fc241834 | 3096 | afloat = _float_constants[0]; /* single prec. inf. */ |
f337b084 | 3097 | else if (anv < -FLT_MAX) |
fc241834 | 3098 | afloat = _float_constants[0]; /* single prec. inf. */ |
f337b084 | 3099 | else afloat = (float) anv; |
3722f0dc | 3100 | } |
f337b084 | 3101 | #else /* __VOS__ */ |
baf3cf9c | 3102 | # if defined(VMS) && !defined(__IEEE_FP) |
f337b084 | 3103 | /* IEEE fp overflow shenanigans are unavailable on VAX and optional |
fc241834 RGS |
3104 | * on Alpha; fake it if we don't have them. |
3105 | */ | |
f337b084 | 3106 | if (anv > FLT_MAX) |
fc241834 | 3107 | afloat = FLT_MAX; |
f337b084 | 3108 | else if (anv < -FLT_MAX) |
fc241834 | 3109 | afloat = -FLT_MAX; |
f337b084 | 3110 | else afloat = (float)anv; |
baf3cf9c | 3111 | # else |
f337b084 | 3112 | afloat = (float)anv; |
baf3cf9c | 3113 | # endif |
f337b084 | 3114 | #endif /* __VOS__ */ |
1109a392 | 3115 | DO_BO_PACK_N(afloat, float); |
f337b084 | 3116 | PUSH_VAR(utf8, cur, afloat); |
a6ec74c1 JH |
3117 | } |
3118 | break; | |
3119 | case 'd': | |
a6ec74c1 | 3120 | while (len-- > 0) { |
f337b084 TH |
3121 | double adouble; |
3122 | NV anv; | |
a6ec74c1 | 3123 | fromstr = NEXTFROM; |
f337b084 | 3124 | anv = SvNV(fromstr); |
5cdb9e01 | 3125 | #ifdef __VOS__ |
f337b084 | 3126 | /* VOS does not automatically map a floating-point overflow |
fc241834 RGS |
3127 | during conversion from long double to double into infinity, |
3128 | so we do it by hand. This code should either be generalized | |
3129 | for any OS that needs it, or removed if and when VOS | |
3130 | implements posix-976 (suggestion to support mapping to | |
3131 | infinity). Paul.Green@stratus.com 02-04-02. */ | |
3722f0dc PG |
3132 | { |
3133 | extern const double _double_constants[]; | |
f337b084 | 3134 | if (anv > DBL_MAX) |
fc241834 | 3135 | adouble = _double_constants[0]; /* double prec. inf. */ |
f337b084 | 3136 | else if (anv < -DBL_MAX) |
fc241834 | 3137 | adouble = _double_constants[0]; /* double prec. inf. */ |
f337b084 | 3138 | else adouble = (double) anv; |
3722f0dc | 3139 | } |
f337b084 | 3140 | #else /* __VOS__ */ |
baf3cf9c | 3141 | # if defined(VMS) && !defined(__IEEE_FP) |
f337b084 | 3142 | /* IEEE fp overflow shenanigans are unavailable on VAX and optional |
fc241834 RGS |
3143 | * on Alpha; fake it if we don't have them. |
3144 | */ | |
f337b084 | 3145 | if (anv > DBL_MAX) |
fc241834 | 3146 | adouble = DBL_MAX; |
f337b084 | 3147 | else if (anv < -DBL_MAX) |
fc241834 | 3148 | adouble = -DBL_MAX; |
f337b084 | 3149 | else adouble = (double)anv; |
baf3cf9c | 3150 | # else |
f337b084 | 3151 | adouble = (double)anv; |
baf3cf9c | 3152 | # endif |
f337b084 | 3153 | #endif /* __VOS__ */ |
1109a392 | 3154 | DO_BO_PACK_N(adouble, double); |
f337b084 | 3155 | PUSH_VAR(utf8, cur, adouble); |
a6ec74c1 JH |
3156 | } |
3157 | break; | |
fc241834 RGS |
3158 | case 'F': { |
3159 | NV anv; | |
1109a392 | 3160 | Zero(&anv, 1, NV); /* can be long double with unused bits */ |
92d41999 JH |
3161 | while (len-- > 0) { |
3162 | fromstr = NEXTFROM; | |
3163 | anv = SvNV(fromstr); | |
1109a392 | 3164 | DO_BO_PACK_N(anv, NV); |
fc241834 | 3165 | PUSH_VAR(utf8, cur, anv); |
92d41999 JH |
3166 | } |
3167 | break; | |
fc241834 | 3168 | } |
92d41999 | 3169 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
fc241834 RGS |
3170 | case 'D': { |
3171 | long double aldouble; | |
1109a392 MHM |
3172 | /* long doubles can have unused bits, which may be nonzero */ |
3173 | Zero(&aldouble, 1, long double); | |
92d41999 JH |
3174 | while (len-- > 0) { |
3175 | fromstr = NEXTFROM; | |
3176 | aldouble = (long double)SvNV(fromstr); | |
1109a392 | 3177 | DO_BO_PACK_N(aldouble, long double); |
fc241834 | 3178 | PUSH_VAR(utf8, cur, aldouble); |
92d41999 JH |
3179 | } |
3180 | break; | |
fc241834 | 3181 | } |
92d41999 | 3182 | #endif |
7212898e | 3183 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
068bd2e7 | 3184 | case 'n' | TYPE_IS_SHRIEKING: |
7212898e | 3185 | #endif |
a6ec74c1 JH |
3186 | case 'n': |
3187 | while (len-- > 0) { | |
f337b084 | 3188 | I16 ai16; |
a6ec74c1 | 3189 | fromstr = NEXTFROM; |
ef108786 | 3190 | ai16 = (I16)SvIV(fromstr); |
a6ec74c1 | 3191 | #ifdef HAS_HTONS |
ef108786 | 3192 | ai16 = PerlSock_htons(ai16); |
a6ec74c1 | 3193 | #endif |
f337b084 | 3194 | PUSH16(utf8, cur, &ai16); |
a6ec74c1 JH |
3195 | } |
3196 | break; | |
7212898e | 3197 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
068bd2e7 | 3198 | case 'v' | TYPE_IS_SHRIEKING: |
7212898e | 3199 | #endif |
a6ec74c1 JH |
3200 | case 'v': |
3201 | while (len-- > 0) { | |
f337b084 | 3202 | I16 ai16; |
a6ec74c1 | 3203 | fromstr = NEXTFROM; |
ef108786 | 3204 | ai16 = (I16)SvIV(fromstr); |
a6ec74c1 | 3205 | #ifdef HAS_HTOVS |
ef108786 | 3206 | ai16 = htovs(ai16); |
a6ec74c1 | 3207 | #endif |
f337b084 | 3208 | PUSH16(utf8, cur, &ai16); |
a6ec74c1 JH |
3209 | } |
3210 | break; | |
49704364 | 3211 | case 'S' | TYPE_IS_SHRIEKING: |
a6ec74c1 | 3212 | #if SHORTSIZE != SIZE16 |
fc241834 | 3213 | while (len-- > 0) { |
f337b084 | 3214 | unsigned short aushort; |
fc241834 RGS |
3215 | fromstr = NEXTFROM; |
3216 | aushort = SvUV(fromstr); | |
3217 | DO_BO_PACK(aushort, s); | |
f337b084 | 3218 | PUSH_VAR(utf8, cur, aushort); |
fc241834 | 3219 | } |
49704364 WL |
3220 | break; |
3221 | #else | |
3222 | /* Fall through! */ | |
a6ec74c1 | 3223 | #endif |
49704364 | 3224 | case 'S': |
fc241834 | 3225 | while (len-- > 0) { |
f337b084 | 3226 | U16 au16; |
fc241834 RGS |
3227 | fromstr = NEXTFROM; |
3228 | au16 = (U16)SvUV(fromstr); | |
3229 | DO_BO_PACK(au16, 16); | |
f337b084 | 3230 | PUSH16(utf8, cur, &au16); |
a6ec74c1 JH |
3231 | } |
3232 | break; | |
49704364 | 3233 | case 's' | TYPE_IS_SHRIEKING: |
a6ec74c1 | 3234 | #if SHORTSIZE != SIZE16 |
fc241834 | 3235 | while (len-- > 0) { |
f337b084 | 3236 | short ashort; |
fc241834 RGS |
3237 | fromstr = NEXTFROM; |
3238 | ashort = SvIV(fromstr); | |
3239 | DO_BO_PACK(ashort, s); | |
f337b084 | 3240 | PUSH_VAR(utf8, cur, ashort); |
a6ec74c1 | 3241 | } |
49704364 WL |
3242 | break; |
3243 | #else | |
3244 | /* Fall through! */ | |
a6ec74c1 | 3245 | #endif |
49704364 WL |
3246 | case 's': |
3247 | while (len-- > 0) { | |
f337b084 | 3248 | I16 ai16; |
49704364 | 3249 | fromstr = NEXTFROM; |
ef108786 MHM |
3250 | ai16 = (I16)SvIV(fromstr); |
3251 | DO_BO_PACK(ai16, 16); | |
f337b084 | 3252 | PUSH16(utf8, cur, &ai16); |
a6ec74c1 JH |
3253 | } |
3254 | break; | |
3255 | case 'I': | |
49704364 | 3256 | case 'I' | TYPE_IS_SHRIEKING: |
a6ec74c1 | 3257 | while (len-- > 0) { |
f337b084 | 3258 | unsigned int auint; |
a6ec74c1 JH |
3259 | fromstr = NEXTFROM; |
3260 | auint = SvUV(fromstr); | |
1109a392 | 3261 | DO_BO_PACK(auint, i); |
f337b084 | 3262 | PUSH_VAR(utf8, cur, auint); |
a6ec74c1 JH |
3263 | } |
3264 | break; | |
92d41999 JH |
3265 | case 'j': |
3266 | while (len-- > 0) { | |
f337b084 | 3267 | IV aiv; |
92d41999 JH |
3268 | fromstr = NEXTFROM; |
3269 | aiv = SvIV(fromstr); | |
1109a392 MHM |
3270 | #if IVSIZE == INTSIZE |
3271 | DO_BO_PACK(aiv, i); | |
3272 | #elif IVSIZE == LONGSIZE | |
3273 | DO_BO_PACK(aiv, l); | |
3274 | #elif defined(HAS_QUAD) && IVSIZE == U64SIZE | |
3275 | DO_BO_PACK(aiv, 64); | |
f337b084 TH |
3276 | #else |
3277 | Perl_croak(aTHX_ "'j' not supported on this platform"); | |
1109a392 | 3278 | #endif |
f337b084 | 3279 | PUSH_VAR(utf8, cur, aiv); |
92d41999 JH |
3280 | } |
3281 | break; | |
3282 | case 'J': | |
3283 | while (len-- > 0) { | |
f337b084 | 3284 | UV auv; |
92d41999 JH |
3285 | fromstr = NEXTFROM; |
3286 | auv = SvUV(fromstr); | |
1109a392 MHM |
3287 | #if UVSIZE == INTSIZE |
3288 | DO_BO_PACK(auv, i); | |
3289 | #elif UVSIZE == LONGSIZE | |
3290 | DO_BO_PACK(auv, l); | |
3291 | #elif defined(HAS_QUAD) && UVSIZE == U64SIZE | |
3292 | DO_BO_PACK(auv, 64); | |
f337b084 TH |
3293 | #else |
3294 | Perl_croak(aTHX_ "'J' not supported on this platform"); | |
1109a392 | 3295 | #endif |
f337b084 | 3296 | PUSH_VAR(utf8, cur, auv); |
92d41999 JH |
3297 | } |
3298 | break; | |
a6ec74c1 JH |
3299 | case 'w': |
3300 | while (len-- > 0) { | |
f337b084 | 3301 | NV anv; |
a6ec74c1 | 3302 | fromstr = NEXTFROM; |
15e9f109 | 3303 | anv = SvNV(fromstr); |
a6ec74c1 | 3304 | |
f337b084 TH |
3305 | if (anv < 0) { |
3306 | *cur = '\0'; | |
b162af07 | 3307 | SvCUR_set(cat, cur - start); |
49704364 | 3308 | Perl_croak(aTHX_ "Cannot compress negative numbers in pack"); |
f337b084 | 3309 | } |
a6ec74c1 | 3310 | |
196b62db NC |
3311 | /* 0xFFFFFFFFFFFFFFFF may cast to 18446744073709551616.0, |
3312 | which is == UV_MAX_P1. IOK is fine (instead of UV_only), as | |
3313 | any negative IVs will have already been got by the croak() | |
3314 | above. IOK is untrue for fractions, so we test them | |
3315 | against UV_MAX_P1. */ | |
f337b084 TH |
3316 | if (SvIOK(fromstr) || anv < UV_MAX_P1) { |
3317 | char buf[(sizeof(UV)*CHAR_BIT)/7+1]; | |
a6ec74c1 | 3318 | char *in = buf + sizeof(buf); |
196b62db | 3319 | UV auv = SvUV(fromstr); |
a6ec74c1 JH |
3320 | |
3321 | do { | |
eb160463 | 3322 | *--in = (char)((auv & 0x7f) | 0x80); |
a6ec74c1 JH |
3323 | auv >>= 7; |
3324 | } while (auv); | |
3325 | buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */ | |
f337b084 TH |
3326 | PUSH_GROWING_BYTES(utf8, cat, start, cur, |
3327 | in, (buf + sizeof(buf)) - in); | |
3328 | } else if (SvPOKp(fromstr)) | |
3329 | goto w_string; | |
a6ec74c1 | 3330 | else if (SvNOKp(fromstr)) { |
0258719b NC |
3331 | /* 10**NV_MAX_10_EXP is the largest power of 10 |
3332 | so 10**(NV_MAX_10_EXP+1) is definately unrepresentable | |
3333 | given 10**(NV_MAX_10_EXP+1) == 128 ** x solve for x: | |
3334 | x = (NV_MAX_10_EXP+1) * log (10) / log (128) | |
3335 | And with that many bytes only Inf can overflow. | |
8f8d40ab PG |
3336 | Some C compilers are strict about integral constant |
3337 | expressions so we conservatively divide by a slightly | |
3338 | smaller integer instead of multiplying by the exact | |
3339 | floating-point value. | |
0258719b NC |
3340 | */ |
3341 | #ifdef NV_MAX_10_EXP | |
f337b084 | 3342 | /* char buf[1 + (int)((NV_MAX_10_EXP + 1) * 0.47456)]; -- invalid C */ |
8f8d40ab | 3343 | char buf[1 + (int)((NV_MAX_10_EXP + 1) / 2)]; /* valid C */ |
0258719b | 3344 | #else |
f337b084 | 3345 | /* char buf[1 + (int)((308 + 1) * 0.47456)]; -- invalid C */ |
8f8d40ab | 3346 | char buf[1 + (int)((308 + 1) / 2)]; /* valid C */ |
0258719b | 3347 | #endif |
a6ec74c1 JH |
3348 | char *in = buf + sizeof(buf); |
3349 | ||
8b6e33c7 | 3350 | anv = Perl_floor(anv); |
a6ec74c1 | 3351 | do { |
8b6e33c7 | 3352 | const NV next = Perl_floor(anv / 128); |
a6ec74c1 | 3353 | if (in <= buf) /* this cannot happen ;-) */ |
49704364 | 3354 | Perl_croak(aTHX_ "Cannot compress integer in pack"); |
0258719b | 3355 | *--in = (unsigned char)(anv - (next * 128)) | 0x80; |
15e9f109 NC |
3356 | anv = next; |
3357 | } while (anv > 0); | |
a6ec74c1 | 3358 | buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */ |
f337b084 TH |
3359 | PUSH_GROWING_BYTES(utf8, cat, start, cur, |
3360 | in, (buf + sizeof(buf)) - in); | |
3361 | } else { | |
8b6e33c7 AL |
3362 | const char *from; |
3363 | char *result, *in; | |
735b914b JH |
3364 | SV *norm; |
3365 | STRLEN len; | |
3366 | bool done; | |
3367 | ||
f337b084 | 3368 | w_string: |
735b914b | 3369 | /* Copy string and check for compliance */ |
349d4f2f | 3370 | from = SvPV_const(fromstr, len); |
735b914b | 3371 | if ((norm = is_an_int(from, len)) == NULL) |
49704364 | 3372 | Perl_croak(aTHX_ "Can only compress unsigned integers in pack"); |
735b914b | 3373 | |
a02a5408 | 3374 | Newx(result, len, char); |
735b914b JH |
3375 | in = result + len; |
3376 | done = FALSE; | |
f337b084 | 3377 | while (!done) *--in = div128(norm, &done) | 0x80; |
735b914b | 3378 | result[len - 1] &= 0x7F; /* clear continue bit */ |
f337b084 TH |
3379 | PUSH_GROWING_BYTES(utf8, cat, start, cur, |
3380 | in, (result + len) - in); | |
735b914b JH |
3381 | Safefree(result); |
3382 | SvREFCNT_dec(norm); /* free norm */ | |
fc241834 | 3383 | } |
a6ec74c1 JH |
3384 | } |
3385 | break; | |
3386 | case 'i': | |
49704364 | 3387 | case 'i' | TYPE_IS_SHRIEKING: |
a6ec74c1 | 3388 | while (len-- > 0) { |
f337b084 | 3389 | int aint; |
a6ec74c1 JH |
3390 | fromstr = NEXTFROM; |
3391 | aint = SvIV(fromstr); | |
1109a392 | 3392 | DO_BO_PACK(aint, i); |
f337b084 | 3393 | PUSH_VAR(utf8, cur, aint); |
a6ec74c1 JH |
3394 | } |
3395 | break; | |
7212898e | 3396 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
068bd2e7 | 3397 | case 'N' | TYPE_IS_SHRIEKING: |
7212898e | 3398 | #endif |
a6ec74c1 JH |
3399 | case 'N': |
3400 | while (len-- > 0) { | |
f337b084 | 3401 | U32 au32; |
a6ec74c1 | 3402 | fromstr = NEXTFROM; |
ef108786 | 3403 | au32 = SvUV(fromstr); |
a6ec74c1 | 3404 | #ifdef HAS_HTONL |
ef108786 | 3405 | au32 = PerlSock_htonl(au32); |
a6ec74c1 | 3406 | #endif |
f337b084 | 3407 | PUSH32(utf8, cur, &au32); |
a6ec74c1 JH |
3408 | } |
3409 | break; | |
7212898e | 3410 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
068bd2e7 | 3411 | case 'V' | TYPE_IS_SHRIEKING: |
7212898e | 3412 | #endif |
a6ec74c1 JH |
3413 | case 'V': |
3414 | while (len-- > 0) { | |
f337b084 | 3415 | U32 au32; |
a6ec74c1 | 3416 | fromstr = NEXTFROM; |
ef108786 | 3417 | au32 = SvUV(fromstr); |
a6ec74c1 | 3418 | #ifdef HAS_HTOVL |
ef108786 | 3419 | au32 = htovl(au32); |
a6ec74c1 | 3420 | #endif |
f337b084 | 3421 | PUSH32(utf8, cur, &au32); |
a6ec74c1 JH |
3422 | } |
3423 | break; | |
49704364 | 3424 | case 'L' | TYPE_IS_SHRIEKING: |
a6ec74c1 | 3425 | #if LONGSIZE != SIZE32 |
fc241834 | 3426 | while (len-- > 0) { |
f337b084 | 3427 | unsigned long aulong; |
fc241834 RGS |
3428 | fromstr = NEXTFROM; |
3429 | aulong = SvUV(fromstr); | |
3430 | DO_BO_PACK(aulong, l); | |
f337b084 | 3431 | PUSH_VAR(utf8, cur, aulong); |
a6ec74c1 | 3432 | } |
49704364 WL |
3433 | break; |
3434 | #else | |
3435 | /* Fall though! */ | |
a6ec74c1 | 3436 | #endif |
49704364 | 3437 | case 'L': |
fc241834 | 3438 | while (len-- > 0) { |
f337b084 | 3439 | U32 au32; |
fc241834 RGS |
3440 | fromstr = NEXTFROM; |
3441 | au32 = SvUV(fromstr); | |
3442 | DO_BO_PACK(au32, 32); | |
f337b084 | 3443 | PUSH32(utf8, cur, &au32); |
a6ec74c1 JH |
3444 | } |
3445 | break; | |
49704364 | 3446 | case 'l' | TYPE_IS_SHRIEKING: |
a6ec74c1 | 3447 | #if LONGSIZE != SIZE32 |
fc241834 | 3448 | while (len-- > 0) { |
f337b084 | 3449 | long along; |
fc241834 RGS |
3450 | fromstr = NEXTFROM; |
3451 | along = SvIV(fromstr); | |
3452 | DO_BO_PACK(along, l); | |
f337b084 | 3453 | PUSH_VAR(utf8, cur, along); |
a6ec74c1 | 3454 | } |
49704364 WL |
3455 | break; |
3456 | #else | |
3457 | /* Fall though! */ | |
a6ec74c1 | 3458 | #endif |
49704364 WL |
3459 | case 'l': |
3460 | while (len-- > 0) { | |
f337b084 | 3461 | I32 ai32; |
49704364 | 3462 | fromstr = NEXTFROM; |
ef108786 MHM |
3463 | ai32 = SvIV(fromstr); |
3464 | DO_BO_PACK(ai32, 32); | |
f337b084 | 3465 | PUSH32(utf8, cur, &ai32); |
a6ec74c1 JH |
3466 | } |
3467 | break; | |
3468 | #ifdef HAS_QUAD | |
3469 | case 'Q': | |
3470 | while (len-- > 0) { | |
f337b084 | 3471 | Uquad_t auquad; |
a6ec74c1 | 3472 | fromstr = NEXTFROM; |
f337b084 | 3473 | auquad = (Uquad_t) SvUV(fromstr); |
1109a392 | 3474 | DO_BO_PACK(auquad, 64); |
f337b084 | 3475 | PUSH_VAR(utf8, cur, auquad); |
a6ec74c1 JH |
3476 | } |
3477 | break; | |
3478 | case 'q': | |
3479 | while (len-- > 0) { | |
f337b084 | 3480 | Quad_t aquad; |
a6ec74c1 JH |
3481 | fromstr = NEXTFROM; |
3482 | aquad = (Quad_t)SvIV(fromstr); | |
1109a392 | 3483 | DO_BO_PACK(aquad, 64); |
f337b084 | 3484 | PUSH_VAR(utf8, cur, aquad); |
a6ec74c1 JH |
3485 | } |
3486 | break; | |
f337b084 | 3487 | #endif /* HAS_QUAD */ |
a6ec74c1 JH |
3488 | case 'P': |
3489 | len = 1; /* assume SV is correct length */ | |
f337b084 | 3490 | GROWING(utf8, cat, start, cur, sizeof(char *)); |
49704364 | 3491 | /* Fall through! */ |
a6ec74c1 JH |
3492 | case 'p': |
3493 | while (len-- > 0) { | |
83003860 | 3494 | const char *aptr; |
f337b084 | 3495 | |
a6ec74c1 | 3496 | fromstr = NEXTFROM; |
28a4f200 TH |
3497 | SvGETMAGIC(fromstr); |
3498 | if (!SvOK(fromstr)) aptr = NULL; | |
a6ec74c1 | 3499 | else { |
a6ec74c1 JH |
3500 | /* XXX better yet, could spirit away the string to |
3501 | * a safe spot and hang on to it until the result | |
3502 | * of pack() (and all copies of the result) are | |
3503 | * gone. | |
3504 | */ | |
041457d9 | 3505 | if ((SvTEMP(fromstr) || (SvPADTMP(fromstr) && |
a2a5de95 NC |
3506 | !SvREADONLY(fromstr)))) { |
3507 | Perl_ck_warner(aTHX_ packWARN(WARN_PACK), | |
3508 | "Attempt to pack pointer to temporary value"); | |
a6ec74c1 JH |
3509 | } |
3510 | if (SvPOK(fromstr) || SvNIOK(fromstr)) | |
2596d9fe | 3511 | aptr = SvPV_nomg_const_nolen(fromstr); |
a6ec74c1 | 3512 | else |
2596d9fe | 3513 | aptr = SvPV_force_flags_nolen(fromstr, 0); |
a6ec74c1 | 3514 | } |
07409e01 | 3515 | DO_BO_PACK_PC(aptr); |
f337b084 | 3516 | PUSH_VAR(utf8, cur, aptr); |
a6ec74c1 JH |
3517 | } |
3518 | break; | |
fc241834 | 3519 | case 'u': { |
f7fe979e | 3520 | const char *aptr, *aend; |
fc241834 | 3521 | bool from_utf8; |
f337b084 | 3522 | |
a6ec74c1 | 3523 | fromstr = NEXTFROM; |
fc241834 RGS |
3524 | if (len <= 2) len = 45; |
3525 | else len = len / 3 * 3; | |
3526 | if (len >= 64) { | |
a2a5de95 NC |
3527 | Perl_ck_warner(aTHX_ packWARN(WARN_PACK), |
3528 | "Field too wide in 'u' format in pack"); | |
fc241834 RGS |
3529 | len = 63; |
3530 | } | |
83003860 | 3531 | aptr = SvPV_const(fromstr, fromlen); |
fc241834 RGS |
3532 | from_utf8 = DO_UTF8(fromstr); |
3533 | if (from_utf8) { | |
3534 | aend = aptr + fromlen; | |
3535 | fromlen = sv_len_utf8(fromstr); | |
3536 | } else aend = NULL; /* Unused, but keep compilers happy */ | |
3537 | GROWING(utf8, cat, start, cur, (fromlen+2) / 3 * 4 + (fromlen+len-1)/len * 2); | |
a6ec74c1 | 3538 | while (fromlen > 0) { |
fc241834 | 3539 | U8 *end; |
a6ec74c1 | 3540 | I32 todo; |
fc241834 | 3541 | U8 hunk[1+63/3*4+1]; |
a6ec74c1 | 3542 | |
eb160463 | 3543 | if ((I32)fromlen > len) |
a6ec74c1 JH |
3544 | todo = len; |
3545 | else | |
3546 | todo = fromlen; | |
fc241834 RGS |
3547 | if (from_utf8) { |
3548 | char buffer[64]; | |
3549 | if (!uni_to_bytes(aTHX_ &aptr, aend, buffer, todo, | |
3550 | 'u' | TYPE_IS_PACK)) { | |
3551 | *cur = '\0'; | |
b162af07 | 3552 | SvCUR_set(cat, cur - start); |
5f5991a0 | 3553 | Perl_croak(aTHX_ "panic: string is shorter than advertised"); |
fc241834 RGS |
3554 | } |
3555 | end = doencodes(hunk, buffer, todo); | |
3556 | } else { | |
3557 | end = doencodes(hunk, aptr, todo); | |
3558 | aptr += todo; | |
3559 | } | |
3560 | PUSH_BYTES(utf8, cur, hunk, end-hunk); | |
3561 | fromlen -= todo; | |
3562 | } | |
a6ec74c1 JH |
3563 | break; |
3564 | } | |
f337b084 TH |
3565 | } |
3566 | *cur = '\0'; | |
b162af07 | 3567 | SvCUR_set(cat, cur - start); |
f337b084 | 3568 | no_change: |
49704364 | 3569 | *symptr = lookahead; |
a6ec74c1 | 3570 | } |
49704364 | 3571 | return beglist; |
18529408 IZ |
3572 | } |
3573 | #undef NEXTFROM | |
3574 | ||
3575 | ||
3576 | PP(pp_pack) | |
3577 | { | |
97aff369 | 3578 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
18529408 IZ |
3579 | register SV *cat = TARG; |
3580 | STRLEN fromlen; | |
349d4f2f NC |
3581 | SV *pat_sv = *++MARK; |
3582 | register const char *pat = SvPV_const(pat_sv, fromlen); | |
f7fe979e | 3583 | register const char *patend = pat + fromlen; |
18529408 IZ |
3584 | |
3585 | MARK++; | |
76f68e9b | 3586 | sv_setpvs(cat, ""); |
f337b084 | 3587 | SvUTF8_off(cat); |
18529408 | 3588 | |
7accc089 | 3589 | packlist(cat, pat, patend, MARK, SP + 1); |
18529408 | 3590 | |
a6ec74c1 JH |
3591 | SvSETMAGIC(cat); |
3592 | SP = ORIGMARK; | |
3593 | PUSHs(cat); | |
3594 | RETURN; | |
3595 | } | |
a6ec74c1 | 3596 | |
73cb7263 NC |
3597 | /* |
3598 | * Local variables: | |
3599 | * c-indentation-style: bsd | |
3600 | * c-basic-offset: 4 | |
3601 | * indent-tabs-mode: t | |
3602 | * End: | |
3603 | * | |
37442d52 RGS |
3604 | * ex: set ts=8 sts=4 sw=4 noet: |
3605 | */ |