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 | ||
275663fa TC |
73 | typedef union { |
74 | NV nv; | |
75 | U8 bytes[sizeof(NV)]; | |
76 | } NV_bytes; | |
77 | ||
78 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) | |
79 | typedef union { | |
80 | long double ld; | |
81 | U8 bytes[sizeof(long double)]; | |
82 | } ld_bytes; | |
83 | #endif | |
84 | ||
7212898e | 85 | #if PERL_VERSION >= 9 |
f337b084 TH |
86 | # define PERL_PACK_CAN_BYTEORDER |
87 | # define PERL_PACK_CAN_SHRIEKSIGN | |
88 | #endif | |
89 | ||
90 | #ifndef CHAR_BIT | |
91 | # define CHAR_BIT 8 | |
7212898e | 92 | #endif |
3473cf63 RGS |
93 | /* Maximum number of bytes to which a byte can grow due to upgrade */ |
94 | #define UTF8_EXPAND 2 | |
7212898e | 95 | |
a6ec74c1 | 96 | /* |
a6ec74c1 JH |
97 | * Offset for integer pack/unpack. |
98 | * | |
99 | * On architectures where I16 and I32 aren't really 16 and 32 bits, | |
100 | * which for now are all Crays, pack and unpack have to play games. | |
101 | */ | |
102 | ||
103 | /* | |
104 | * These values are required for portability of pack() output. | |
105 | * If they're not right on your machine, then pack() and unpack() | |
106 | * wouldn't work right anyway; you'll need to apply the Cray hack. | |
107 | * (I'd like to check them with #if, but you can't use sizeof() in | |
108 | * the preprocessor.) --??? | |
109 | */ | |
110 | /* | |
111 | The appropriate SHORTSIZE, INTSIZE, LONGSIZE, and LONGLONGSIZE | |
112 | defines are now in config.h. --Andy Dougherty April 1998 | |
113 | */ | |
114 | #define SIZE16 2 | |
115 | #define SIZE32 4 | |
116 | ||
117 | /* CROSSCOMPILE and MULTIARCH are going to affect pp_pack() and pp_unpack(). | |
118 | --jhi Feb 1999 */ | |
119 | ||
1109a392 MHM |
120 | #if U16SIZE > SIZE16 || U32SIZE > SIZE32 |
121 | # if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678 /* little-endian */ | |
08ca2aa3 TH |
122 | # define OFF16(p) ((char*)(p)) |
123 | # define OFF32(p) ((char*)(p)) | |
a6ec74c1 | 124 | # else |
1109a392 | 125 | # if BYTEORDER == 0x4321 || BYTEORDER == 0x87654321 /* big-endian */ |
a6ec74c1 JH |
126 | # define OFF16(p) ((char*)(p) + (sizeof(U16) - SIZE16)) |
127 | # define OFF32(p) ((char*)(p) + (sizeof(U32) - SIZE32)) | |
128 | # else | |
08ca2aa3 | 129 | ++++ bad cray byte order |
a6ec74c1 JH |
130 | # endif |
131 | # endif | |
a6ec74c1 | 132 | #else |
08ca2aa3 TH |
133 | # define OFF16(p) ((char *) (p)) |
134 | # define OFF32(p) ((char *) (p)) | |
a6ec74c1 JH |
135 | #endif |
136 | ||
f337b084 TH |
137 | /* Only to be used inside a loop (see the break) */ |
138 | #define SHIFT16(utf8, s, strend, p, datumtype) STMT_START { \ | |
139 | if (utf8) { \ | |
140 | if (!uni_to_bytes(aTHX_ &(s), strend, OFF16(p), SIZE16, datumtype)) break; \ | |
141 | } else { \ | |
142 | Copy(s, OFF16(p), SIZE16, char); \ | |
143 | (s) += SIZE16; \ | |
144 | } \ | |
145 | } STMT_END | |
146 | ||
147 | /* Only to be used inside a loop (see the break) */ | |
148 | #define SHIFT32(utf8, s, strend, p, datumtype) STMT_START { \ | |
149 | if (utf8) { \ | |
150 | if (!uni_to_bytes(aTHX_ &(s), strend, OFF32(p), SIZE32, datumtype)) break; \ | |
151 | } else { \ | |
152 | Copy(s, OFF32(p), SIZE32, char); \ | |
153 | (s) += SIZE32; \ | |
154 | } \ | |
155 | } STMT_END | |
156 | ||
157 | #define PUSH16(utf8, cur, p) PUSH_BYTES(utf8, cur, OFF16(p), SIZE16) | |
158 | #define PUSH32(utf8, cur, p) PUSH_BYTES(utf8, cur, OFF32(p), SIZE32) | |
08ca2aa3 TH |
159 | |
160 | /* Only to be used inside a loop (see the break) */ | |
275663fa | 161 | #define SHIFT_BYTES(utf8, s, strend, buf, len, datumtype) \ |
08ca2aa3 TH |
162 | STMT_START { \ |
163 | if (utf8) { \ | |
f337b084 | 164 | if (!uni_to_bytes(aTHX_ &s, strend, \ |
275663fa | 165 | (char *) (buf), len, datumtype)) break; \ |
08ca2aa3 | 166 | } else { \ |
275663fa TC |
167 | Copy(s, (char *) (buf), len, char); \ |
168 | s += len; \ | |
08ca2aa3 | 169 | } \ |
08ca2aa3 TH |
170 | } STMT_END |
171 | ||
275663fa TC |
172 | #define SHIFT_VAR(utf8, s, strend, var, datumtype) \ |
173 | SHIFT_BYTES(utf8, s, strend, &(var), sizeof(var), datumtype) | |
174 | ||
f337b084 | 175 | #define PUSH_VAR(utf8, aptr, var) \ |
230e1fce | 176 | PUSH_BYTES(utf8, aptr, &(var), sizeof(var)) |
f337b084 | 177 | |
49704364 WL |
178 | /* Avoid stack overflow due to pathological templates. 100 should be plenty. */ |
179 | #define MAX_SUB_TEMPLATE_LEVEL 100 | |
180 | ||
66c611c5 | 181 | /* flags (note that type modifiers can also be used as flags!) */ |
f337b084 TH |
182 | #define FLAG_WAS_UTF8 0x40 |
183 | #define FLAG_PARSE_UTF8 0x20 /* Parse as utf8 */ | |
49704364 | 184 | #define FLAG_UNPACK_ONLY_ONE 0x10 |
f337b084 | 185 | #define FLAG_DO_UTF8 0x08 /* The underlying string is utf8 */ |
49704364 WL |
186 | #define FLAG_SLASH 0x04 |
187 | #define FLAG_COMMA 0x02 | |
188 | #define FLAG_PACK 0x01 | |
189 | ||
a6ec74c1 JH |
190 | STATIC SV * |
191 | S_mul128(pTHX_ SV *sv, U8 m) | |
192 | { | |
193 | STRLEN len; | |
194 | char *s = SvPV(sv, len); | |
195 | char *t; | |
a6ec74c1 | 196 | |
7918f24d NC |
197 | PERL_ARGS_ASSERT_MUL128; |
198 | ||
a6ec74c1 | 199 | if (!strnEQ(s, "0000", 4)) { /* need to grow sv */ |
396482e1 | 200 | SV * const tmpNew = newSVpvs("0000000000"); |
a6ec74c1 JH |
201 | |
202 | sv_catsv(tmpNew, sv); | |
203 | SvREFCNT_dec(sv); /* free old sv */ | |
204 | sv = tmpNew; | |
205 | s = SvPV(sv, len); | |
206 | } | |
207 | t = s + len - 1; | |
208 | while (!*t) /* trailing '\0'? */ | |
209 | t--; | |
210 | while (t > s) { | |
f7fe979e | 211 | const U32 i = ((*t - '0') << 7) + m; |
eb160463 GS |
212 | *(t--) = '0' + (char)(i % 10); |
213 | m = (char)(i / 10); | |
a6ec74c1 JH |
214 | } |
215 | return (sv); | |
216 | } | |
217 | ||
218 | /* Explosives and implosives. */ | |
219 | ||
220 | #if 'I' == 73 && 'J' == 74 | |
221 | /* On an ASCII/ISO kind of system */ | |
222 | #define ISUUCHAR(ch) ((ch) >= ' ' && (ch) < 'a') | |
223 | #else | |
224 | /* | |
225 | Some other sort of character set - use memchr() so we don't match | |
226 | the null byte. | |
227 | */ | |
228 | #define ISUUCHAR(ch) (memchr(PL_uuemap, (ch), sizeof(PL_uuemap)-1) || (ch) == ' ') | |
229 | #endif | |
230 | ||
66c611c5 | 231 | /* type modifiers */ |
62f95557 | 232 | #define TYPE_IS_SHRIEKING 0x100 |
1109a392 MHM |
233 | #define TYPE_IS_BIG_ENDIAN 0x200 |
234 | #define TYPE_IS_LITTLE_ENDIAN 0x400 | |
f337b084 | 235 | #define TYPE_IS_PACK 0x800 |
1109a392 | 236 | #define TYPE_ENDIANNESS_MASK (TYPE_IS_BIG_ENDIAN|TYPE_IS_LITTLE_ENDIAN) |
66c611c5 | 237 | #define TYPE_MODIFIERS(t) ((t) & ~0xFF) |
1109a392 MHM |
238 | #define TYPE_NO_MODIFIERS(t) ((t) & 0xFF) |
239 | ||
7212898e | 240 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
28be1210 | 241 | # define SHRIEKING_ALLOWED_TYPES "sSiIlLxXnNvV@." |
7212898e | 242 | #else |
28be1210 | 243 | # define SHRIEKING_ALLOWED_TYPES "sSiIlLxX" |
7212898e NC |
244 | #endif |
245 | ||
246 | #ifndef PERL_PACK_CAN_BYTEORDER | |
247 | /* Put "can't" first because it is shorter */ | |
248 | # define TYPE_ENDIANNESS(t) 0 | |
249 | # define TYPE_NO_ENDIANNESS(t) (t) | |
250 | ||
251 | # define ENDIANNESS_ALLOWED_TYPES "" | |
252 | ||
253 | # define DO_BO_UNPACK(var, type) | |
254 | # define DO_BO_PACK(var, type) | |
07409e01 NC |
255 | # define DO_BO_UNPACK_PTR(var, type, pre_cast, post_cast) |
256 | # define DO_BO_PACK_PTR(var, type, pre_cast, post_cast) | |
7212898e NC |
257 | # define DO_BO_UNPACK_N(var, type) |
258 | # define DO_BO_PACK_N(var, type) | |
259 | # define DO_BO_UNPACK_P(var) | |
260 | # define DO_BO_PACK_P(var) | |
45f723e1 NC |
261 | # define DO_BO_UNPACK_PC(var) |
262 | # define DO_BO_PACK_PC(var) | |
66c611c5 | 263 | |
f337b084 | 264 | #else /* PERL_PACK_CAN_BYTEORDER */ |
7212898e NC |
265 | |
266 | # define TYPE_ENDIANNESS(t) ((t) & TYPE_ENDIANNESS_MASK) | |
267 | # define TYPE_NO_ENDIANNESS(t) ((t) & ~TYPE_ENDIANNESS_MASK) | |
268 | ||
269 | # define ENDIANNESS_ALLOWED_TYPES "sSiIlLqQjJfFdDpP(" | |
270 | ||
271 | # define DO_BO_UNPACK(var, type) \ | |
1109a392 | 272 | STMT_START { \ |
66c611c5 | 273 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 MHM |
274 | case TYPE_IS_BIG_ENDIAN: var = my_betoh ## type (var); break; \ |
275 | case TYPE_IS_LITTLE_ENDIAN: var = my_letoh ## type (var); break; \ | |
276 | default: break; \ | |
277 | } \ | |
278 | } STMT_END | |
279 | ||
7212898e | 280 | # define DO_BO_PACK(var, type) \ |
1109a392 | 281 | STMT_START { \ |
66c611c5 | 282 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 MHM |
283 | case TYPE_IS_BIG_ENDIAN: var = my_htobe ## type (var); break; \ |
284 | case TYPE_IS_LITTLE_ENDIAN: var = my_htole ## type (var); break; \ | |
285 | default: break; \ | |
286 | } \ | |
287 | } STMT_END | |
288 | ||
07409e01 | 289 | # define DO_BO_UNPACK_PTR(var, type, pre_cast, post_cast) \ |
1109a392 | 290 | STMT_START { \ |
66c611c5 | 291 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 | 292 | case TYPE_IS_BIG_ENDIAN: \ |
07409e01 | 293 | var = (post_cast*) my_betoh ## type ((pre_cast) var); \ |
1109a392 MHM |
294 | break; \ |
295 | case TYPE_IS_LITTLE_ENDIAN: \ | |
07409e01 | 296 | var = (post_cast *) my_letoh ## type ((pre_cast) var); \ |
1109a392 MHM |
297 | break; \ |
298 | default: \ | |
299 | break; \ | |
300 | } \ | |
301 | } STMT_END | |
302 | ||
07409e01 | 303 | # define DO_BO_PACK_PTR(var, type, pre_cast, post_cast) \ |
1109a392 | 304 | STMT_START { \ |
66c611c5 | 305 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 | 306 | case TYPE_IS_BIG_ENDIAN: \ |
07409e01 | 307 | var = (post_cast *) my_htobe ## type ((pre_cast) var); \ |
1109a392 MHM |
308 | break; \ |
309 | case TYPE_IS_LITTLE_ENDIAN: \ | |
07409e01 | 310 | var = (post_cast *) my_htole ## type ((pre_cast) var); \ |
1109a392 MHM |
311 | break; \ |
312 | default: \ | |
313 | break; \ | |
314 | } \ | |
315 | } STMT_END | |
316 | ||
7212898e | 317 | # define BO_CANT_DOIT(action, type) \ |
66c611c5 MHM |
318 | STMT_START { \ |
319 | switch (TYPE_ENDIANNESS(datumtype)) { \ | |
1109a392 MHM |
320 | case TYPE_IS_BIG_ENDIAN: \ |
321 | Perl_croak(aTHX_ "Can't %s big-endian %ss on this " \ | |
322 | "platform", #action, #type); \ | |
323 | break; \ | |
324 | case TYPE_IS_LITTLE_ENDIAN: \ | |
325 | Perl_croak(aTHX_ "Can't %s little-endian %ss on this " \ | |
326 | "platform", #action, #type); \ | |
327 | break; \ | |
328 | default: \ | |
329 | break; \ | |
330 | } \ | |
331 | } STMT_END | |
332 | ||
7212898e | 333 | # if PTRSIZE == INTSIZE |
07409e01 NC |
334 | # define DO_BO_UNPACK_P(var) DO_BO_UNPACK_PTR(var, i, int, void) |
335 | # define DO_BO_PACK_P(var) DO_BO_PACK_PTR(var, i, int, void) | |
336 | # define DO_BO_UNPACK_PC(var) DO_BO_UNPACK_PTR(var, i, int, char) | |
337 | # define DO_BO_PACK_PC(var) DO_BO_PACK_PTR(var, i, int, char) | |
7212898e | 338 | # elif PTRSIZE == LONGSIZE |
fa58a56f S |
339 | # if LONGSIZE < IVSIZE && IVSIZE == 8 |
340 | # define DO_BO_UNPACK_P(var) DO_BO_UNPACK_PTR(var, 64, IV, void) | |
341 | # define DO_BO_PACK_P(var) DO_BO_PACK_PTR(var, 64, IV, void) | |
342 | # define DO_BO_UNPACK_PC(var) DO_BO_UNPACK_PTR(var, 64, IV, char) | |
343 | # define DO_BO_PACK_PC(var) DO_BO_PACK_PTR(var, 64, IV, char) | |
344 | # else | |
345 | # define DO_BO_UNPACK_P(var) DO_BO_UNPACK_PTR(var, l, IV, void) | |
346 | # define DO_BO_PACK_P(var) DO_BO_PACK_PTR(var, l, IV, void) | |
347 | # define DO_BO_UNPACK_PC(var) DO_BO_UNPACK_PTR(var, l, IV, char) | |
348 | # define DO_BO_PACK_PC(var) DO_BO_PACK_PTR(var, l, IV, char) | |
349 | # endif | |
2b00a750 JD |
350 | # elif PTRSIZE == IVSIZE |
351 | # define DO_BO_UNPACK_P(var) DO_BO_UNPACK_PTR(var, l, IV, void) | |
352 | # define DO_BO_PACK_P(var) DO_BO_PACK_PTR(var, l, IV, void) | |
353 | # define DO_BO_UNPACK_PC(var) DO_BO_UNPACK_PTR(var, l, IV, char) | |
354 | # define DO_BO_PACK_PC(var) DO_BO_PACK_PTR(var, l, IV, char) | |
7212898e NC |
355 | # else |
356 | # define DO_BO_UNPACK_P(var) BO_CANT_DOIT(unpack, pointer) | |
357 | # define DO_BO_PACK_P(var) BO_CANT_DOIT(pack, pointer) | |
45f723e1 NC |
358 | # define DO_BO_UNPACK_PC(var) BO_CANT_DOIT(unpack, pointer) |
359 | # define DO_BO_PACK_PC(var) BO_CANT_DOIT(pack, pointer) | |
7212898e | 360 | # endif |
1109a392 | 361 | |
7212898e | 362 | # if defined(my_htolen) && defined(my_letohn) && \ |
1109a392 | 363 | defined(my_htoben) && defined(my_betohn) |
7212898e | 364 | # define DO_BO_UNPACK_N(var, type) \ |
1109a392 | 365 | STMT_START { \ |
66c611c5 | 366 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 MHM |
367 | case TYPE_IS_BIG_ENDIAN: my_betohn(&var, sizeof(type)); break;\ |
368 | case TYPE_IS_LITTLE_ENDIAN: my_letohn(&var, sizeof(type)); break;\ | |
369 | default: break; \ | |
370 | } \ | |
371 | } STMT_END | |
372 | ||
7212898e | 373 | # define DO_BO_PACK_N(var, type) \ |
1109a392 | 374 | STMT_START { \ |
66c611c5 | 375 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 MHM |
376 | case TYPE_IS_BIG_ENDIAN: my_htoben(&var, sizeof(type)); break;\ |
377 | case TYPE_IS_LITTLE_ENDIAN: my_htolen(&var, sizeof(type)); break;\ | |
378 | default: break; \ | |
379 | } \ | |
380 | } STMT_END | |
7212898e NC |
381 | # else |
382 | # define DO_BO_UNPACK_N(var, type) BO_CANT_DOIT(unpack, type) | |
383 | # define DO_BO_PACK_N(var, type) BO_CANT_DOIT(pack, type) | |
384 | # endif | |
385 | ||
f337b084 | 386 | #endif /* PERL_PACK_CAN_BYTEORDER */ |
62f95557 | 387 | |
78d46eaa | 388 | #define PACK_SIZE_CANNOT_CSUM 0x80 |
f337b084 | 389 | #define PACK_SIZE_UNPREDICTABLE 0x40 /* Not a fixed size element */ |
78d46eaa NC |
390 | #define PACK_SIZE_MASK 0x3F |
391 | ||
78d46eaa NC |
392 | /* These tables are regenerated by genpacksizetables.pl (and then hand pasted |
393 | in). You're unlikely ever to need to regenerate them. */ | |
a7a3cfaa TH |
394 | |
395 | #if TYPE_IS_SHRIEKING != 0x100 | |
396 | ++++shriek offset should be 256 | |
397 | #endif | |
398 | ||
399 | typedef U8 packprops_t; | |
78d46eaa NC |
400 | #if 'J'-'I' == 1 |
401 | /* ASCII */ | |
f43a9a31 | 402 | STATIC const packprops_t packprops[512] = { |
a7a3cfaa TH |
403 | /* normal */ |
404 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
405 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
406 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
407 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
408 | 0, 0, 0, | |
1651fc44 | 409 | /* C */ sizeof(unsigned char), |
80a13697 | 410 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
a7a3cfaa | 411 | /* D */ LONG_DOUBLESIZE, |
80a13697 | 412 | #else |
a7a3cfaa | 413 | 0, |
80a13697 | 414 | #endif |
a7a3cfaa TH |
415 | 0, |
416 | /* F */ NVSIZE, | |
417 | 0, 0, | |
418 | /* I */ sizeof(unsigned int), | |
419 | /* J */ UVSIZE, | |
420 | 0, | |
421 | /* L */ SIZE32, | |
422 | 0, | |
423 | /* N */ SIZE32, | |
424 | 0, 0, | |
80a13697 | 425 | #if defined(HAS_QUAD) |
a7a3cfaa | 426 | /* Q */ sizeof(Uquad_t), |
80a13697 | 427 | #else |
a7a3cfaa | 428 | 0, |
80a13697 | 429 | #endif |
a7a3cfaa TH |
430 | 0, |
431 | /* S */ SIZE16, | |
432 | 0, | |
433 | /* U */ sizeof(char) | PACK_SIZE_UNPREDICTABLE, | |
434 | /* V */ SIZE32, | |
435 | /* W */ sizeof(unsigned char) | PACK_SIZE_UNPREDICTABLE, | |
436 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
437 | /* c */ sizeof(char), | |
438 | /* d */ sizeof(double), | |
439 | 0, | |
440 | /* f */ sizeof(float), | |
441 | 0, 0, | |
442 | /* i */ sizeof(int), | |
443 | /* j */ IVSIZE, | |
444 | 0, | |
445 | /* l */ SIZE32, | |
446 | 0, | |
447 | /* n */ SIZE16, | |
448 | 0, | |
449 | /* p */ sizeof(char *) | PACK_SIZE_CANNOT_CSUM, | |
80a13697 | 450 | #if defined(HAS_QUAD) |
a7a3cfaa | 451 | /* q */ sizeof(Quad_t), |
80a13697 | 452 | #else |
a7a3cfaa | 453 | 0, |
80a13697 | 454 | #endif |
a7a3cfaa TH |
455 | 0, |
456 | /* s */ SIZE16, | |
457 | 0, 0, | |
458 | /* v */ SIZE16, | |
459 | /* w */ sizeof(char) | PACK_SIZE_UNPREDICTABLE | PACK_SIZE_CANNOT_CSUM, | |
460 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
461 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
462 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
463 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
464 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
465 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
466 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
467 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
468 | 0, 0, 0, 0, 0, 0, 0, 0, | |
469 | /* shrieking */ | |
470 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
471 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
472 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
473 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
474 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
475 | /* I */ sizeof(unsigned int), | |
476 | 0, 0, | |
477 | /* L */ sizeof(unsigned long), | |
478 | 0, | |
7212898e | 479 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
a7a3cfaa | 480 | /* N */ SIZE32, |
7212898e | 481 | #else |
a7a3cfaa | 482 | 0, |
7212898e | 483 | #endif |
a7a3cfaa TH |
484 | 0, 0, 0, 0, |
485 | /* S */ sizeof(unsigned short), | |
486 | 0, 0, | |
7212898e | 487 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
a7a3cfaa | 488 | /* V */ SIZE32, |
7212898e | 489 | #else |
a7a3cfaa | 490 | 0, |
7212898e | 491 | #endif |
a7a3cfaa TH |
492 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
493 | 0, 0, | |
494 | /* i */ sizeof(int), | |
495 | 0, 0, | |
496 | /* l */ sizeof(long), | |
497 | 0, | |
7212898e | 498 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
a7a3cfaa | 499 | /* n */ SIZE16, |
7212898e | 500 | #else |
a7a3cfaa | 501 | 0, |
7212898e | 502 | #endif |
a7a3cfaa TH |
503 | 0, 0, 0, 0, |
504 | /* s */ sizeof(short), | |
505 | 0, 0, | |
7212898e | 506 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
a7a3cfaa | 507 | /* v */ SIZE16, |
7212898e | 508 | #else |
a7a3cfaa | 509 | 0, |
7212898e | 510 | #endif |
a7a3cfaa TH |
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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
519 | 0, 0, 0, 0, 0, 0, 0, 0, 0 | |
78d46eaa NC |
520 | }; |
521 | #else | |
522 | /* EBCDIC (or bust) */ | |
f43a9a31 | 523 | STATIC const packprops_t packprops[512] = { |
a7a3cfaa TH |
524 | /* normal */ |
525 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
526 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
527 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
528 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
529 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
530 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
531 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
532 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
533 | 0, 0, 0, | |
534 | /* c */ sizeof(char), | |
535 | /* d */ sizeof(double), | |
536 | 0, | |
537 | /* f */ sizeof(float), | |
538 | 0, 0, | |
539 | /* i */ sizeof(int), | |
540 | 0, 0, 0, 0, 0, 0, 0, | |
541 | /* j */ IVSIZE, | |
542 | 0, | |
543 | /* l */ SIZE32, | |
544 | 0, | |
545 | /* n */ SIZE16, | |
546 | 0, | |
547 | /* p */ sizeof(char *) | PACK_SIZE_CANNOT_CSUM, | |
80a13697 | 548 | #if defined(HAS_QUAD) |
a7a3cfaa | 549 | /* q */ sizeof(Quad_t), |
80a13697 | 550 | #else |
a7a3cfaa | 551 | 0, |
80a13697 | 552 | #endif |
a7a3cfaa TH |
553 | 0, 0, 0, 0, 0, 0, 0, 0, 0, |
554 | /* s */ SIZE16, | |
555 | 0, 0, | |
556 | /* v */ SIZE16, | |
557 | /* w */ sizeof(char) | PACK_SIZE_UNPREDICTABLE | PACK_SIZE_CANNOT_CSUM, | |
558 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
559 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
1651fc44 | 560 | /* C */ sizeof(unsigned char), |
80a13697 | 561 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
a7a3cfaa | 562 | /* D */ LONG_DOUBLESIZE, |
80a13697 | 563 | #else |
a7a3cfaa | 564 | 0, |
80a13697 | 565 | #endif |
a7a3cfaa TH |
566 | 0, |
567 | /* F */ NVSIZE, | |
568 | 0, 0, | |
569 | /* I */ sizeof(unsigned int), | |
570 | 0, 0, 0, 0, 0, 0, 0, | |
571 | /* J */ UVSIZE, | |
572 | 0, | |
573 | /* L */ SIZE32, | |
574 | 0, | |
575 | /* N */ SIZE32, | |
576 | 0, 0, | |
80a13697 | 577 | #if defined(HAS_QUAD) |
a7a3cfaa | 578 | /* Q */ sizeof(Uquad_t), |
80a13697 | 579 | #else |
a7a3cfaa | 580 | 0, |
80a13697 | 581 | #endif |
a7a3cfaa TH |
582 | 0, 0, 0, 0, 0, 0, 0, 0, 0, |
583 | /* S */ SIZE16, | |
584 | 0, | |
585 | /* U */ sizeof(char) | PACK_SIZE_UNPREDICTABLE, | |
586 | /* V */ SIZE32, | |
587 | /* W */ sizeof(unsigned char) | PACK_SIZE_UNPREDICTABLE, | |
588 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
589 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
590 | /* shrieking */ | |
591 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
592 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
593 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
594 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
595 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
596 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
597 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
598 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
599 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
600 | /* i */ sizeof(int), | |
601 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
602 | /* l */ sizeof(long), | |
603 | 0, | |
7212898e | 604 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
a7a3cfaa | 605 | /* n */ SIZE16, |
7212898e | 606 | #else |
a7a3cfaa | 607 | 0, |
7212898e | 608 | #endif |
a7a3cfaa TH |
609 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
610 | /* s */ sizeof(short), | |
611 | 0, 0, | |
7212898e | 612 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
a7a3cfaa | 613 | /* v */ SIZE16, |
7212898e | 614 | #else |
a7a3cfaa | 615 | 0, |
7212898e | 616 | #endif |
a7a3cfaa TH |
617 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
618 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
619 | 0, 0, 0, | |
620 | /* I */ sizeof(unsigned int), | |
621 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
622 | /* L */ sizeof(unsigned long), | |
623 | 0, | |
7212898e | 624 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
a7a3cfaa | 625 | /* N */ SIZE32, |
7212898e | 626 | #else |
a7a3cfaa | 627 | 0, |
7212898e | 628 | #endif |
a7a3cfaa TH |
629 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
630 | /* S */ sizeof(unsigned short), | |
631 | 0, 0, | |
7212898e | 632 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
a7a3cfaa | 633 | /* V */ SIZE32, |
7212898e | 634 | #else |
a7a3cfaa | 635 | 0, |
7212898e | 636 | #endif |
a7a3cfaa TH |
637 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
638 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 | |
78d46eaa NC |
639 | }; |
640 | #endif | |
641 | ||
08ca2aa3 | 642 | STATIC U8 |
f7fe979e | 643 | uni_to_byte(pTHX_ const char **s, const char *end, I32 datumtype) |
08ca2aa3 | 644 | { |
08ca2aa3 | 645 | STRLEN retlen; |
0bcc34c2 | 646 | UV val = utf8n_to_uvchr((U8 *) *s, end-*s, &retlen, |
f337b084 | 647 | ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANY); |
486ec47a | 648 | /* We try to process malformed UTF-8 as much as possible (preferably with |
08ca2aa3 TH |
649 | warnings), but these two mean we make no progress in the string and |
650 | might enter an infinite loop */ | |
651 | if (retlen == (STRLEN) -1 || retlen == 0) | |
f337b084 TH |
652 | Perl_croak(aTHX_ "Malformed UTF-8 string in '%c' format in unpack", |
653 | (int) TYPE_NO_MODIFIERS(datumtype)); | |
08ca2aa3 | 654 | if (val >= 0x100) { |
a2a5de95 NC |
655 | Perl_ck_warner(aTHX_ packWARN(WARN_UNPACK), |
656 | "Character in '%c' format wrapped in unpack", | |
657 | (int) TYPE_NO_MODIFIERS(datumtype)); | |
08ca2aa3 TH |
658 | val &= 0xff; |
659 | } | |
660 | *s += retlen; | |
fe2774ed | 661 | return (U8)val; |
08ca2aa3 TH |
662 | } |
663 | ||
f337b084 TH |
664 | #define SHIFT_BYTE(utf8, s, strend, datumtype) ((utf8) ? \ |
665 | uni_to_byte(aTHX_ &(s), (strend), (datumtype)) : \ | |
08ca2aa3 TH |
666 | *(U8 *)(s)++) |
667 | ||
668 | STATIC bool | |
f7fe979e | 669 | uni_to_bytes(pTHX_ const char **s, const char *end, const char *buf, int buf_len, I32 datumtype) |
08ca2aa3 TH |
670 | { |
671 | UV val; | |
672 | STRLEN retlen; | |
f7fe979e | 673 | const char *from = *s; |
08ca2aa3 | 674 | int bad = 0; |
f7fe979e | 675 | const U32 flags = ckWARN(WARN_UTF8) ? |
08ca2aa3 TH |
676 | UTF8_CHECK_ONLY : (UTF8_CHECK_ONLY | UTF8_ALLOW_ANY); |
677 | for (;buf_len > 0; buf_len--) { | |
678 | if (from >= end) return FALSE; | |
f337b084 | 679 | val = utf8n_to_uvchr((U8 *) from, end-from, &retlen, flags); |
08ca2aa3 TH |
680 | if (retlen == (STRLEN) -1 || retlen == 0) { |
681 | from += UTF8SKIP(from); | |
682 | bad |= 1; | |
683 | } else from += retlen; | |
684 | if (val >= 0x100) { | |
685 | bad |= 2; | |
686 | val &= 0xff; | |
687 | } | |
fe2774ed | 688 | *(U8 *)buf++ = (U8)val; |
08ca2aa3 TH |
689 | } |
690 | /* We have enough characters for the buffer. Did we have problems ? */ | |
691 | if (bad) { | |
692 | if (bad & 1) { | |
693 | /* Rewalk the string fragment while warning */ | |
f7fe979e | 694 | const char *ptr; |
9e27e96a | 695 | const int flags = ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANY; |
08ca2aa3 TH |
696 | for (ptr = *s; ptr < from; ptr += UTF8SKIP(ptr)) { |
697 | if (ptr >= end) break; | |
f337b084 | 698 | utf8n_to_uvuni((U8 *) ptr, end-ptr, &retlen, flags); |
08ca2aa3 TH |
699 | } |
700 | if (from > end) from = end; | |
701 | } | |
a2a5de95 NC |
702 | if ((bad & 2)) |
703 | Perl_ck_warner(aTHX_ packWARN(datumtype & TYPE_IS_PACK ? | |
f337b084 | 704 | WARN_PACK : WARN_UNPACK), |
a2a5de95 NC |
705 | "Character(s) in '%c' format wrapped in %s", |
706 | (int) TYPE_NO_MODIFIERS(datumtype), | |
707 | datumtype & TYPE_IS_PACK ? "pack" : "unpack"); | |
08ca2aa3 TH |
708 | } |
709 | *s = from; | |
710 | return TRUE; | |
711 | } | |
712 | ||
713 | STATIC bool | |
f7fe979e | 714 | next_uni_uu(pTHX_ const char **s, const char *end, I32 *out) |
08ca2aa3 | 715 | { |
97aff369 | 716 | dVAR; |
08ca2aa3 | 717 | STRLEN retlen; |
0bcc34c2 | 718 | const UV val = utf8n_to_uvchr((U8 *) *s, end-*s, &retlen, UTF8_CHECK_ONLY); |
08ca2aa3 TH |
719 | if (val >= 0x100 || !ISUUCHAR(val) || |
720 | retlen == (STRLEN) -1 || retlen == 0) { | |
721 | *out = 0; | |
722 | return FALSE; | |
723 | } | |
724 | *out = PL_uudmap[val] & 077; | |
f337b084 | 725 | *s += retlen; |
08ca2aa3 TH |
726 | return TRUE; |
727 | } | |
78d46eaa | 728 | |
64844641 | 729 | STATIC char * |
14333449 | 730 | S_bytes_to_uni(const U8 *start, STRLEN len, char *dest) { |
0bcc34c2 | 731 | const U8 * const end = start + len; |
64844641 | 732 | |
7918f24d NC |
733 | PERL_ARGS_ASSERT_BYTES_TO_UNI; |
734 | ||
f337b084 | 735 | while (start < end) { |
48fa4626 TS |
736 | const UV uv = NATIVE_TO_ASCII(*start); |
737 | if (UNI_IS_INVARIANT(uv)) | |
738 | *dest++ = (char)(U8)UTF_TO_NATIVE(uv); | |
739 | else { | |
740 | *dest++ = (char)(U8)UTF8_EIGHT_BIT_HI(uv); | |
741 | *dest++ = (char)(U8)UTF8_EIGHT_BIT_LO(uv); | |
f337b084 TH |
742 | } |
743 | start++; | |
744 | } | |
64844641 | 745 | return dest; |
f337b084 TH |
746 | } |
747 | ||
230e1fce NC |
748 | #define PUSH_BYTES(utf8, cur, buf, len) \ |
749 | STMT_START { \ | |
64844641 AL |
750 | if (utf8) \ |
751 | (cur) = bytes_to_uni((U8 *) buf, len, (cur)); \ | |
230e1fce NC |
752 | else { \ |
753 | Copy(buf, cur, len, char); \ | |
754 | (cur) += (len); \ | |
755 | } \ | |
f337b084 TH |
756 | } STMT_END |
757 | ||
758 | #define GROWING(utf8, cat, start, cur, in_len) \ | |
759 | STMT_START { \ | |
760 | STRLEN glen = (in_len); \ | |
3473cf63 | 761 | if (utf8) glen *= UTF8_EXPAND; \ |
f337b084 | 762 | if ((cur) + glen >= (start) + SvLEN(cat)) { \ |
0bd48802 | 763 | (start) = sv_exp_grow(cat, glen); \ |
f337b084 TH |
764 | (cur) = (start) + SvCUR(cat); \ |
765 | } \ | |
766 | } STMT_END | |
767 | ||
768 | #define PUSH_GROWING_BYTES(utf8, cat, start, cur, buf, in_len) \ | |
769 | STMT_START { \ | |
f7fe979e | 770 | const STRLEN glen = (in_len); \ |
f337b084 | 771 | STRLEN gl = glen; \ |
3473cf63 | 772 | if (utf8) gl *= UTF8_EXPAND; \ |
f337b084 TH |
773 | if ((cur) + gl >= (start) + SvLEN(cat)) { \ |
774 | *cur = '\0'; \ | |
b162af07 | 775 | SvCUR_set((cat), (cur) - (start)); \ |
0bd48802 | 776 | (start) = sv_exp_grow(cat, gl); \ |
f337b084 TH |
777 | (cur) = (start) + SvCUR(cat); \ |
778 | } \ | |
779 | PUSH_BYTES(utf8, cur, buf, glen); \ | |
780 | } STMT_END | |
781 | ||
782 | #define PUSH_BYTE(utf8, s, byte) \ | |
783 | STMT_START { \ | |
784 | if (utf8) { \ | |
f7fe979e | 785 | const U8 au8 = (byte); \ |
64844641 | 786 | (s) = bytes_to_uni(&au8, 1, (s)); \ |
f337b084 TH |
787 | } else *(U8 *)(s)++ = (byte); \ |
788 | } STMT_END | |
789 | ||
790 | /* Only to be used inside a loop (see the break) */ | |
791 | #define NEXT_UNI_VAL(val, cur, str, end, utf8_flags) \ | |
792 | STMT_START { \ | |
793 | STRLEN retlen; \ | |
794 | if (str >= end) break; \ | |
795 | val = utf8n_to_uvchr((U8 *) str, end-str, &retlen, utf8_flags); \ | |
796 | if (retlen == (STRLEN) -1 || retlen == 0) { \ | |
797 | *cur = '\0'; \ | |
798 | Perl_croak(aTHX_ "Malformed UTF-8 string in pack"); \ | |
799 | } \ | |
800 | str += retlen; \ | |
801 | } STMT_END | |
802 | ||
f7fe979e AL |
803 | static const char *_action( const tempsym_t* symptr ) |
804 | { | |
10edeb5d | 805 | return (const char *)(( symptr->flags & FLAG_PACK ) ? "pack" : "unpack"); |
f7fe979e AL |
806 | } |
807 | ||
206947d2 | 808 | /* Returns the sizeof() struct described by pat */ |
028d1f6d | 809 | STATIC I32 |
f337b084 | 810 | S_measure_struct(pTHX_ tempsym_t* symptr) |
206947d2 | 811 | { |
f337b084 | 812 | I32 total = 0; |
206947d2 | 813 | |
7918f24d NC |
814 | PERL_ARGS_ASSERT_MEASURE_STRUCT; |
815 | ||
49704364 | 816 | while (next_symbol(symptr)) { |
f337b084 | 817 | I32 len; |
f7fe979e | 818 | int size; |
f337b084 TH |
819 | |
820 | switch (symptr->howlen) { | |
fc241834 | 821 | case e_star: |
49704364 | 822 | Perl_croak(aTHX_ "Within []-length '*' not allowed in %s", |
f7fe979e | 823 | _action( symptr ) ); |
49704364 | 824 | break; |
f337b084 TH |
825 | default: |
826 | /* e_no_len and e_number */ | |
827 | len = symptr->length; | |
828 | break; | |
49704364 WL |
829 | } |
830 | ||
a7a3cfaa | 831 | size = packprops[TYPE_NO_ENDIANNESS(symptr->code)] & PACK_SIZE_MASK; |
80a13697 | 832 | if (!size) { |
f7fe979e | 833 | int star; |
80a13697 NC |
834 | /* endianness doesn't influence the size of a type */ |
835 | switch(TYPE_NO_ENDIANNESS(symptr->code)) { | |
836 | default: | |
837 | Perl_croak(aTHX_ "Invalid type '%c' in %s", | |
838 | (int)TYPE_NO_MODIFIERS(symptr->code), | |
f7fe979e | 839 | _action( symptr ) ); |
28be1210 TH |
840 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
841 | case '.' | TYPE_IS_SHRIEKING: | |
842 | case '@' | TYPE_IS_SHRIEKING: | |
843 | #endif | |
80a13697 | 844 | case '@': |
28be1210 | 845 | case '.': |
80a13697 NC |
846 | case '/': |
847 | case 'U': /* XXXX Is it correct? */ | |
848 | case 'w': | |
849 | case 'u': | |
850 | Perl_croak(aTHX_ "Within []-length '%c' not allowed in %s", | |
28be1210 | 851 | (int) TYPE_NO_MODIFIERS(symptr->code), |
f7fe979e | 852 | _action( symptr ) ); |
80a13697 NC |
853 | case '%': |
854 | size = 0; | |
855 | break; | |
856 | case '(': | |
fc241834 RGS |
857 | { |
858 | tempsym_t savsym = *symptr; | |
859 | symptr->patptr = savsym.grpbeg; | |
860 | symptr->patend = savsym.grpend; | |
861 | /* XXXX Theoretically, we need to measure many times at | |
862 | different positions, since the subexpression may contain | |
863 | alignment commands, but be not of aligned length. | |
864 | Need to detect this and croak(). */ | |
865 | size = measure_struct(symptr); | |
866 | *symptr = savsym; | |
867 | break; | |
868 | } | |
80a13697 NC |
869 | case 'X' | TYPE_IS_SHRIEKING: |
870 | /* XXXX Is this useful? Then need to treat MEASURE_BACKWARDS. | |
871 | */ | |
872 | if (!len) /* Avoid division by 0 */ | |
873 | len = 1; | |
874 | len = total % len; /* Assumed: the start is aligned. */ | |
875 | /* FALL THROUGH */ | |
876 | case 'X': | |
877 | size = -1; | |
878 | if (total < len) | |
f7fe979e | 879 | Perl_croak(aTHX_ "'X' outside of string in %s", _action( symptr ) ); |
80a13697 NC |
880 | break; |
881 | case 'x' | TYPE_IS_SHRIEKING: | |
882 | if (!len) /* Avoid division by 0 */ | |
883 | len = 1; | |
884 | star = total % len; /* Assumed: the start is aligned. */ | |
885 | if (star) /* Other portable ways? */ | |
886 | len = len - star; | |
887 | else | |
888 | len = 0; | |
889 | /* FALL THROUGH */ | |
890 | case 'x': | |
891 | case 'A': | |
892 | case 'Z': | |
893 | case 'a': | |
80a13697 NC |
894 | size = 1; |
895 | break; | |
896 | case 'B': | |
897 | case 'b': | |
898 | len = (len + 7)/8; | |
899 | size = 1; | |
900 | break; | |
901 | case 'H': | |
902 | case 'h': | |
903 | len = (len + 1)/2; | |
904 | size = 1; | |
905 | break; | |
78d46eaa | 906 | |
80a13697 NC |
907 | case 'P': |
908 | len = 1; | |
909 | size = sizeof(char*); | |
78d46eaa NC |
910 | break; |
911 | } | |
206947d2 IZ |
912 | } |
913 | total += len * size; | |
914 | } | |
915 | return total; | |
916 | } | |
917 | ||
49704364 WL |
918 | |
919 | /* locate matching closing parenthesis or bracket | |
920 | * returns char pointer to char after match, or NULL | |
921 | */ | |
f7fe979e AL |
922 | STATIC const char * |
923 | S_group_end(pTHX_ register const char *patptr, register const char *patend, char ender) | |
18529408 | 924 | { |
7918f24d NC |
925 | PERL_ARGS_ASSERT_GROUP_END; |
926 | ||
49704364 | 927 | while (patptr < patend) { |
f7fe979e | 928 | const char c = *patptr++; |
49704364 WL |
929 | |
930 | if (isSPACE(c)) | |
931 | continue; | |
932 | else if (c == ender) | |
933 | return patptr-1; | |
934 | else if (c == '#') { | |
935 | while (patptr < patend && *patptr != '\n') | |
936 | patptr++; | |
937 | continue; | |
938 | } else if (c == '(') | |
939 | patptr = group_end(patptr, patend, ')') + 1; | |
940 | else if (c == '[') | |
941 | patptr = group_end(patptr, patend, ']') + 1; | |
18529408 | 942 | } |
49704364 WL |
943 | Perl_croak(aTHX_ "No group ending character '%c' found in template", |
944 | ender); | |
945 | return 0; | |
18529408 IZ |
946 | } |
947 | ||
49704364 WL |
948 | |
949 | /* Convert unsigned decimal number to binary. | |
950 | * Expects a pointer to the first digit and address of length variable | |
951 | * Advances char pointer to 1st non-digit char and returns number | |
fc241834 | 952 | */ |
f7fe979e AL |
953 | STATIC const char * |
954 | S_get_num(pTHX_ register const char *patptr, I32 *lenptr ) | |
49704364 WL |
955 | { |
956 | I32 len = *patptr++ - '0'; | |
7918f24d NC |
957 | |
958 | PERL_ARGS_ASSERT_GET_NUM; | |
959 | ||
49704364 WL |
960 | while (isDIGIT(*patptr)) { |
961 | if (len >= 0x7FFFFFFF/10) | |
962 | Perl_croak(aTHX_ "pack/unpack repeat count overflow"); | |
963 | len = (len * 10) + (*patptr++ - '0'); | |
964 | } | |
965 | *lenptr = len; | |
966 | return patptr; | |
967 | } | |
968 | ||
969 | /* The marvellous template parsing routine: Using state stored in *symptr, | |
970 | * locates next template code and count | |
971 | */ | |
972 | STATIC bool | |
f337b084 | 973 | S_next_symbol(pTHX_ tempsym_t* symptr ) |
18529408 | 974 | { |
f7fe979e | 975 | const char* patptr = symptr->patptr; |
0bcc34c2 | 976 | const char* const patend = symptr->patend; |
49704364 | 977 | |
7918f24d NC |
978 | PERL_ARGS_ASSERT_NEXT_SYMBOL; |
979 | ||
49704364 WL |
980 | symptr->flags &= ~FLAG_SLASH; |
981 | ||
982 | while (patptr < patend) { | |
983 | if (isSPACE(*patptr)) | |
984 | patptr++; | |
985 | else if (*patptr == '#') { | |
986 | patptr++; | |
987 | while (patptr < patend && *patptr != '\n') | |
988 | patptr++; | |
989 | if (patptr < patend) | |
990 | patptr++; | |
991 | } else { | |
fc241834 | 992 | /* We should have found a template code */ |
49704364 | 993 | I32 code = *patptr++ & 0xFF; |
66c611c5 | 994 | U32 inherited_modifiers = 0; |
49704364 WL |
995 | |
996 | if (code == ','){ /* grandfather in commas but with a warning */ | |
997 | if (((symptr->flags & FLAG_COMMA) == 0) && ckWARN(WARN_UNPACK)){ | |
998 | symptr->flags |= FLAG_COMMA; | |
999 | Perl_warner(aTHX_ packWARN(WARN_UNPACK), | |
f7fe979e | 1000 | "Invalid type ',' in %s", _action( symptr ) ); |
49704364 WL |
1001 | } |
1002 | continue; | |
1003 | } | |
fc241834 | 1004 | |
49704364 | 1005 | /* for '(', skip to ')' */ |
fc241834 | 1006 | if (code == '(') { |
49704364 WL |
1007 | if( isDIGIT(*patptr) || *patptr == '*' || *patptr == '[' ) |
1008 | Perl_croak(aTHX_ "()-group starts with a count in %s", | |
f7fe979e | 1009 | _action( symptr ) ); |
49704364 WL |
1010 | symptr->grpbeg = patptr; |
1011 | patptr = 1 + ( symptr->grpend = group_end(patptr, patend, ')') ); | |
1012 | if( symptr->level >= MAX_SUB_TEMPLATE_LEVEL ) | |
1013 | Perl_croak(aTHX_ "Too deeply nested ()-groups in %s", | |
f7fe979e | 1014 | _action( symptr ) ); |
49704364 WL |
1015 | } |
1016 | ||
66c611c5 MHM |
1017 | /* look for group modifiers to inherit */ |
1018 | if (TYPE_ENDIANNESS(symptr->flags)) { | |
1019 | if (strchr(ENDIANNESS_ALLOWED_TYPES, TYPE_NO_MODIFIERS(code))) | |
1020 | inherited_modifiers |= TYPE_ENDIANNESS(symptr->flags); | |
1021 | } | |
1022 | ||
1109a392 MHM |
1023 | /* look for modifiers */ |
1024 | while (patptr < patend) { | |
b7787f18 AL |
1025 | const char *allowed; |
1026 | I32 modifier; | |
1109a392 MHM |
1027 | switch (*patptr) { |
1028 | case '!': | |
1029 | modifier = TYPE_IS_SHRIEKING; | |
7212898e | 1030 | allowed = SHRIEKING_ALLOWED_TYPES; |
1109a392 | 1031 | break; |
7212898e | 1032 | #ifdef PERL_PACK_CAN_BYTEORDER |
1109a392 MHM |
1033 | case '>': |
1034 | modifier = TYPE_IS_BIG_ENDIAN; | |
66c611c5 | 1035 | allowed = ENDIANNESS_ALLOWED_TYPES; |
1109a392 MHM |
1036 | break; |
1037 | case '<': | |
1038 | modifier = TYPE_IS_LITTLE_ENDIAN; | |
66c611c5 | 1039 | allowed = ENDIANNESS_ALLOWED_TYPES; |
1109a392 | 1040 | break; |
f337b084 | 1041 | #endif /* PERL_PACK_CAN_BYTEORDER */ |
1109a392 | 1042 | default: |
b7787f18 AL |
1043 | allowed = ""; |
1044 | modifier = 0; | |
1109a392 MHM |
1045 | break; |
1046 | } | |
66c611c5 | 1047 | |
1109a392 MHM |
1048 | if (modifier == 0) |
1049 | break; | |
66c611c5 | 1050 | |
1109a392 MHM |
1051 | if (!strchr(allowed, TYPE_NO_MODIFIERS(code))) |
1052 | Perl_croak(aTHX_ "'%c' allowed only after types %s in %s", *patptr, | |
f7fe979e | 1053 | allowed, _action( symptr ) ); |
66c611c5 MHM |
1054 | |
1055 | if (TYPE_ENDIANNESS(code | modifier) == TYPE_ENDIANNESS_MASK) | |
1109a392 | 1056 | Perl_croak(aTHX_ "Can't use both '<' and '>' after type '%c' in %s", |
f7fe979e | 1057 | (int) TYPE_NO_MODIFIERS(code), _action( symptr ) ); |
66c611c5 MHM |
1058 | else if (TYPE_ENDIANNESS(code | modifier | inherited_modifiers) == |
1059 | TYPE_ENDIANNESS_MASK) | |
1060 | Perl_croak(aTHX_ "Can't use '%c' in a group with different byte-order in %s", | |
f7fe979e | 1061 | *patptr, _action( symptr ) ); |
66c611c5 | 1062 | |
a2a5de95 NC |
1063 | if ((code & modifier)) { |
1064 | Perl_ck_warner(aTHX_ packWARN(WARN_UNPACK), | |
1065 | "Duplicate modifier '%c' after '%c' in %s", | |
1066 | *patptr, (int) TYPE_NO_MODIFIERS(code), | |
1067 | _action( symptr ) ); | |
1109a392 | 1068 | } |
66c611c5 | 1069 | |
1109a392 MHM |
1070 | code |= modifier; |
1071 | patptr++; | |
49704364 WL |
1072 | } |
1073 | ||
66c611c5 MHM |
1074 | /* inherit modifiers */ |
1075 | code |= inherited_modifiers; | |
1076 | ||
fc241834 | 1077 | /* look for count and/or / */ |
49704364 WL |
1078 | if (patptr < patend) { |
1079 | if (isDIGIT(*patptr)) { | |
1080 | patptr = get_num( patptr, &symptr->length ); | |
1081 | symptr->howlen = e_number; | |
1082 | ||
1083 | } else if (*patptr == '*') { | |
1084 | patptr++; | |
1085 | symptr->howlen = e_star; | |
1086 | ||
1087 | } else if (*patptr == '[') { | |
f7fe979e | 1088 | const char* lenptr = ++patptr; |
49704364 WL |
1089 | symptr->howlen = e_number; |
1090 | patptr = group_end( patptr, patend, ']' ) + 1; | |
1091 | /* what kind of [] is it? */ | |
1092 | if (isDIGIT(*lenptr)) { | |
1093 | lenptr = get_num( lenptr, &symptr->length ); | |
1094 | if( *lenptr != ']' ) | |
1095 | Perl_croak(aTHX_ "Malformed integer in [] in %s", | |
f7fe979e | 1096 | _action( symptr ) ); |
49704364 WL |
1097 | } else { |
1098 | tempsym_t savsym = *symptr; | |
1099 | symptr->patend = patptr-1; | |
1100 | symptr->patptr = lenptr; | |
1101 | savsym.length = measure_struct(symptr); | |
1102 | *symptr = savsym; | |
1103 | } | |
1104 | } else { | |
1105 | symptr->howlen = e_no_len; | |
1106 | symptr->length = 1; | |
1107 | } | |
1108 | ||
1109 | /* try to find / */ | |
1110 | while (patptr < patend) { | |
1111 | if (isSPACE(*patptr)) | |
1112 | patptr++; | |
1113 | else if (*patptr == '#') { | |
1114 | patptr++; | |
1115 | while (patptr < patend && *patptr != '\n') | |
1116 | patptr++; | |
1117 | if (patptr < patend) | |
1118 | patptr++; | |
1119 | } else { | |
66c611c5 | 1120 | if (*patptr == '/') { |
49704364 WL |
1121 | symptr->flags |= FLAG_SLASH; |
1122 | patptr++; | |
66c611c5 MHM |
1123 | if (patptr < patend && |
1124 | (isDIGIT(*patptr) || *patptr == '*' || *patptr == '[')) | |
49704364 | 1125 | Perl_croak(aTHX_ "'/' does not take a repeat count in %s", |
f7fe979e | 1126 | _action( symptr ) ); |
49704364 WL |
1127 | } |
1128 | break; | |
1129 | } | |
18529408 | 1130 | } |
49704364 WL |
1131 | } else { |
1132 | /* at end - no count, no / */ | |
1133 | symptr->howlen = e_no_len; | |
1134 | symptr->length = 1; | |
1135 | } | |
1136 | ||
1137 | symptr->code = code; | |
fc241834 | 1138 | symptr->patptr = patptr; |
49704364 | 1139 | return TRUE; |
18529408 | 1140 | } |
49704364 | 1141 | } |
fc241834 | 1142 | symptr->patptr = patptr; |
49704364 | 1143 | return FALSE; |
18529408 IZ |
1144 | } |
1145 | ||
18529408 | 1146 | /* |
fc241834 | 1147 | There is no way to cleanly handle the case where we should process the |
08ca2aa3 | 1148 | string per byte in its upgraded form while it's really in downgraded form |
fc241834 RGS |
1149 | (e.g. estimates like strend-s as an upper bound for the number of |
1150 | characters left wouldn't work). So if we foresee the need of this | |
1151 | (pattern starts with U or contains U0), we want to work on the encoded | |
1152 | version of the string. Users are advised to upgrade their pack string | |
08ca2aa3 TH |
1153 | themselves if they need to do a lot of unpacks like this on it |
1154 | */ | |
fc241834 | 1155 | STATIC bool |
08ca2aa3 TH |
1156 | need_utf8(const char *pat, const char *patend) |
1157 | { | |
1158 | bool first = TRUE; | |
7918f24d NC |
1159 | |
1160 | PERL_ARGS_ASSERT_NEED_UTF8; | |
1161 | ||
08ca2aa3 TH |
1162 | while (pat < patend) { |
1163 | if (pat[0] == '#') { | |
1164 | pat++; | |
f7fe979e | 1165 | pat = (const char *) memchr(pat, '\n', patend-pat); |
08ca2aa3 TH |
1166 | if (!pat) return FALSE; |
1167 | } else if (pat[0] == 'U') { | |
1168 | if (first || pat[1] == '0') return TRUE; | |
1169 | } else first = FALSE; | |
1170 | pat++; | |
1171 | } | |
1172 | return FALSE; | |
1173 | } | |
1174 | ||
1175 | STATIC char | |
1176 | first_symbol(const char *pat, const char *patend) { | |
7918f24d NC |
1177 | PERL_ARGS_ASSERT_FIRST_SYMBOL; |
1178 | ||
08ca2aa3 TH |
1179 | while (pat < patend) { |
1180 | if (pat[0] != '#') return pat[0]; | |
1181 | pat++; | |
f7fe979e | 1182 | pat = (const char *) memchr(pat, '\n', patend-pat); |
08ca2aa3 TH |
1183 | if (!pat) return 0; |
1184 | pat++; | |
1185 | } | |
1186 | return 0; | |
1187 | } | |
1188 | ||
1189 | /* | |
7accc089 JH |
1190 | =for apidoc unpackstring |
1191 | ||
608d3aed WL |
1192 | The engine implementing unpack() Perl function. C<unpackstring> puts the |
1193 | extracted list items on the stack and returns the number of elements. | |
1194 | Issue C<PUTBACK> before and C<SPAGAIN> after the call to this function. | |
7accc089 JH |
1195 | |
1196 | =cut */ | |
1197 | ||
1198 | I32 | |
f7fe979e | 1199 | Perl_unpackstring(pTHX_ const char *pat, const char *patend, const char *s, const char *strend, U32 flags) |
7accc089 | 1200 | { |
f7fe979e | 1201 | tempsym_t sym; |
08ca2aa3 | 1202 | |
7918f24d NC |
1203 | PERL_ARGS_ASSERT_UNPACKSTRING; |
1204 | ||
f337b084 | 1205 | if (flags & FLAG_DO_UTF8) flags |= FLAG_WAS_UTF8; |
08ca2aa3 TH |
1206 | else if (need_utf8(pat, patend)) { |
1207 | /* We probably should try to avoid this in case a scalar context call | |
1208 | wouldn't get to the "U0" */ | |
1209 | STRLEN len = strend - s; | |
230e1fce | 1210 | s = (char *) bytes_to_utf8((U8 *) s, &len); |
08ca2aa3 TH |
1211 | SAVEFREEPV(s); |
1212 | strend = s + len; | |
f337b084 | 1213 | flags |= FLAG_DO_UTF8; |
08ca2aa3 TH |
1214 | } |
1215 | ||
f337b084 TH |
1216 | if (first_symbol(pat, patend) != 'U' && (flags & FLAG_DO_UTF8)) |
1217 | flags |= FLAG_PARSE_UTF8; | |
08ca2aa3 | 1218 | |
f7fe979e | 1219 | TEMPSYM_INIT(&sym, pat, patend, flags); |
7accc089 JH |
1220 | |
1221 | return unpack_rec(&sym, s, s, strend, NULL ); | |
1222 | } | |
1223 | ||
4136a0f7 | 1224 | STATIC I32 |
f7fe979e | 1225 | S_unpack_rec(pTHX_ tempsym_t* symptr, const char *s, const char *strbeg, const char *strend, const char **new_s ) |
49704364 | 1226 | { |
27da23d5 | 1227 | dVAR; dSP; |
3297d27d | 1228 | SV *sv = NULL; |
f7fe979e | 1229 | const I32 start_sp_offset = SP - PL_stack_base; |
49704364 | 1230 | howlen_t howlen; |
a6ec74c1 | 1231 | I32 checksum = 0; |
92d41999 | 1232 | UV cuv = 0; |
a6ec74c1 | 1233 | NV cdouble = 0.0; |
f337b084 | 1234 | const int bits_in_uv = CHAR_BIT * sizeof(cuv); |
49704364 | 1235 | bool beyond = FALSE; |
21c16052 | 1236 | bool explicit_length; |
9e27e96a | 1237 | const bool unpack_only_one = (symptr->flags & FLAG_UNPACK_ONLY_ONE) != 0; |
f337b084 | 1238 | bool utf8 = (symptr->flags & FLAG_PARSE_UTF8) ? 1 : 0; |
7918f24d NC |
1239 | |
1240 | PERL_ARGS_ASSERT_UNPACK_REC; | |
1241 | ||
28be1210 | 1242 | symptr->strbeg = s - strbeg; |
49704364 | 1243 | |
49704364 | 1244 | while (next_symbol(symptr)) { |
a7a3cfaa | 1245 | packprops_t props; |
9e27e96a | 1246 | I32 len; |
f337b084 | 1247 | I32 datumtype = symptr->code; |
206947d2 | 1248 | /* do first one only unless in list context |
08ca2aa3 | 1249 | / is implemented by unpacking the count, then popping it from the |
206947d2 | 1250 | stack, so must check that we're not in the middle of a / */ |
49704364 | 1251 | if ( unpack_only_one |
206947d2 | 1252 | && (SP - PL_stack_base == start_sp_offset + 1) |
49704364 | 1253 | && (datumtype != '/') ) /* XXX can this be omitted */ |
206947d2 | 1254 | break; |
49704364 | 1255 | |
f337b084 | 1256 | switch (howlen = symptr->howlen) { |
fc241834 RGS |
1257 | case e_star: |
1258 | len = strend - strbeg; /* long enough */ | |
49704364 | 1259 | break; |
f337b084 TH |
1260 | default: |
1261 | /* e_no_len and e_number */ | |
1262 | len = symptr->length; | |
1263 | break; | |
49704364 | 1264 | } |
18529408 | 1265 | |
21c16052 | 1266 | explicit_length = TRUE; |
a6ec74c1 | 1267 | redo_switch: |
49704364 | 1268 | beyond = s >= strend; |
a7a3cfaa TH |
1269 | |
1270 | props = packprops[TYPE_NO_ENDIANNESS(datumtype)]; | |
1271 | if (props) { | |
1272 | /* props nonzero means we can process this letter. */ | |
9e27e96a AL |
1273 | const long size = props & PACK_SIZE_MASK; |
1274 | const long howmany = (strend - s) / size; | |
a7a3cfaa TH |
1275 | if (len > howmany) |
1276 | len = howmany; | |
1277 | ||
1278 | if (!checksum || (props & PACK_SIZE_CANNOT_CSUM)) { | |
1279 | if (len && unpack_only_one) len = 1; | |
1280 | EXTEND(SP, len); | |
1281 | EXTEND_MORTAL(len); | |
78d46eaa NC |
1282 | } |
1283 | } | |
a7a3cfaa | 1284 | |
1109a392 | 1285 | switch(TYPE_NO_ENDIANNESS(datumtype)) { |
a6ec74c1 | 1286 | default: |
1109a392 | 1287 | Perl_croak(aTHX_ "Invalid type '%c' in unpack", (int)TYPE_NO_MODIFIERS(datumtype) ); |
49704364 | 1288 | |
a6ec74c1 | 1289 | case '%': |
49704364 | 1290 | if (howlen == e_no_len) |
18529408 | 1291 | len = 16; /* len is not specified */ |
a6ec74c1 | 1292 | checksum = len; |
92d41999 | 1293 | cuv = 0; |
a6ec74c1 | 1294 | cdouble = 0; |
18529408 | 1295 | continue; |
a6ec74c1 | 1296 | break; |
18529408 IZ |
1297 | case '(': |
1298 | { | |
49704364 | 1299 | tempsym_t savsym = *symptr; |
9e27e96a | 1300 | const U32 group_modifiers = TYPE_MODIFIERS(datumtype & ~symptr->flags); |
66c611c5 | 1301 | symptr->flags |= group_modifiers; |
49704364 | 1302 | symptr->patend = savsym.grpend; |
28be1210 | 1303 | symptr->previous = &savsym; |
49704364 | 1304 | symptr->level++; |
18529408 | 1305 | PUTBACK; |
c6f750d1 | 1306 | if (len && unpack_only_one) len = 1; |
18529408 | 1307 | while (len--) { |
49704364 | 1308 | symptr->patptr = savsym.grpbeg; |
f337b084 TH |
1309 | if (utf8) symptr->flags |= FLAG_PARSE_UTF8; |
1310 | else symptr->flags &= ~FLAG_PARSE_UTF8; | |
08ca2aa3 TH |
1311 | unpack_rec(symptr, s, strbeg, strend, &s); |
1312 | if (s == strend && savsym.howlen == e_star) | |
49704364 | 1313 | break; /* No way to continue */ |
18529408 IZ |
1314 | } |
1315 | SPAGAIN; | |
28be1210 | 1316 | savsym.flags = symptr->flags & ~group_modifiers; |
49704364 | 1317 | *symptr = savsym; |
18529408 IZ |
1318 | break; |
1319 | } | |
28be1210 TH |
1320 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
1321 | case '.' | TYPE_IS_SHRIEKING: | |
1322 | #endif | |
1323 | case '.': { | |
9e27e96a | 1324 | const char *from; |
28be1210 TH |
1325 | SV *sv; |
1326 | #ifdef PERL_PACK_CAN_SHRIEKSIGN | |
9e27e96a | 1327 | const bool u8 = utf8 && !(datumtype & TYPE_IS_SHRIEKING); |
28be1210 | 1328 | #else /* PERL_PACK_CAN_SHRIEKSIGN */ |
9e27e96a | 1329 | const bool u8 = utf8; |
28be1210 TH |
1330 | #endif |
1331 | if (howlen == e_star) from = strbeg; | |
1332 | else if (len <= 0) from = s; | |
1333 | else { | |
1334 | tempsym_t *group = symptr; | |
1335 | ||
1336 | while (--len && group) group = group->previous; | |
1337 | from = group ? strbeg + group->strbeg : strbeg; | |
1338 | } | |
1339 | sv = from <= s ? | |
00646304 CB |
1340 | newSVuv( u8 ? (UV) utf8_length((const U8*)from, (const U8*)s) : (UV) (s-from)) : |
1341 | newSViv(-(u8 ? (IV) utf8_length((const U8*)s, (const U8*)from) : (IV) (from-s))); | |
6e449a3a | 1342 | mXPUSHs(sv); |
28be1210 TH |
1343 | break; |
1344 | } | |
1345 | #ifdef PERL_PACK_CAN_SHRIEKSIGN | |
1346 | case '@' | TYPE_IS_SHRIEKING: | |
1347 | #endif | |
a6ec74c1 | 1348 | case '@': |
28be1210 TH |
1349 | s = strbeg + symptr->strbeg; |
1350 | #ifdef PERL_PACK_CAN_SHRIEKSIGN | |
1351 | if (utf8 && !(datumtype & TYPE_IS_SHRIEKING)) | |
1352 | #else /* PERL_PACK_CAN_SHRIEKSIGN */ | |
1353 | if (utf8) | |
1354 | #endif | |
1355 | { | |
08ca2aa3 TH |
1356 | while (len > 0) { |
1357 | if (s >= strend) | |
1358 | Perl_croak(aTHX_ "'@' outside of string in unpack"); | |
1359 | s += UTF8SKIP(s); | |
1360 | len--; | |
1361 | } | |
1362 | if (s > strend) | |
1363 | Perl_croak(aTHX_ "'@' outside of string with malformed UTF-8 in unpack"); | |
1364 | } else { | |
28be1210 | 1365 | if (strend-s < len) |
fc241834 | 1366 | Perl_croak(aTHX_ "'@' outside of string in unpack"); |
28be1210 | 1367 | s += len; |
08ca2aa3 | 1368 | } |
a6ec74c1 | 1369 | break; |
62f95557 IZ |
1370 | case 'X' | TYPE_IS_SHRIEKING: |
1371 | if (!len) /* Avoid division by 0 */ | |
1372 | len = 1; | |
08ca2aa3 | 1373 | if (utf8) { |
f7fe979e | 1374 | const char *hop, *last; |
f337b084 TH |
1375 | I32 l = len; |
1376 | hop = last = strbeg; | |
1377 | while (hop < s) { | |
1378 | hop += UTF8SKIP(hop); | |
1379 | if (--l == 0) { | |
08ca2aa3 | 1380 | last = hop; |
f337b084 TH |
1381 | l = len; |
1382 | } | |
fc241834 | 1383 | } |
f337b084 TH |
1384 | if (last > s) |
1385 | Perl_croak(aTHX_ "Malformed UTF-8 string in unpack"); | |
08ca2aa3 TH |
1386 | s = last; |
1387 | break; | |
f337b084 TH |
1388 | } |
1389 | len = (s - strbeg) % len; | |
62f95557 | 1390 | /* FALL THROUGH */ |
a6ec74c1 | 1391 | case 'X': |
08ca2aa3 TH |
1392 | if (utf8) { |
1393 | while (len > 0) { | |
1394 | if (s <= strbeg) | |
1395 | Perl_croak(aTHX_ "'X' outside of string in unpack"); | |
f337b084 | 1396 | while (--s, UTF8_IS_CONTINUATION(*s)) { |
08ca2aa3 TH |
1397 | if (s <= strbeg) |
1398 | Perl_croak(aTHX_ "'X' outside of string in unpack"); | |
1399 | } | |
1400 | len--; | |
1401 | } | |
1402 | } else { | |
fc241834 RGS |
1403 | if (len > s - strbeg) |
1404 | Perl_croak(aTHX_ "'X' outside of string in unpack" ); | |
1405 | s -= len; | |
08ca2aa3 | 1406 | } |
a6ec74c1 | 1407 | break; |
9e27e96a AL |
1408 | case 'x' | TYPE_IS_SHRIEKING: { |
1409 | I32 ai32; | |
62f95557 IZ |
1410 | if (!len) /* Avoid division by 0 */ |
1411 | len = 1; | |
230e1fce NC |
1412 | if (utf8) ai32 = utf8_length((U8 *) strbeg, (U8 *) s) % len; |
1413 | else ai32 = (s - strbeg) % len; | |
08ca2aa3 TH |
1414 | if (ai32 == 0) break; |
1415 | len -= ai32; | |
9e27e96a | 1416 | } |
62f95557 | 1417 | /* FALL THROUGH */ |
a6ec74c1 | 1418 | case 'x': |
08ca2aa3 TH |
1419 | if (utf8) { |
1420 | while (len>0) { | |
1421 | if (s >= strend) | |
1422 | Perl_croak(aTHX_ "'x' outside of string in unpack"); | |
1423 | s += UTF8SKIP(s); | |
1424 | len--; | |
1425 | } | |
1426 | } else { | |
fc241834 RGS |
1427 | if (len > strend - s) |
1428 | Perl_croak(aTHX_ "'x' outside of string in unpack"); | |
1429 | s += len; | |
f337b084 | 1430 | } |
a6ec74c1 JH |
1431 | break; |
1432 | case '/': | |
49704364 WL |
1433 | Perl_croak(aTHX_ "'/' must follow a numeric type in unpack"); |
1434 | break; | |
a6ec74c1 JH |
1435 | case 'A': |
1436 | case 'Z': | |
1437 | case 'a': | |
08ca2aa3 TH |
1438 | if (checksum) { |
1439 | /* Preliminary length estimate is assumed done in 'W' */ | |
1440 | if (len > strend - s) len = strend - s; | |
1441 | goto W_checksum; | |
1442 | } | |
1443 | if (utf8) { | |
1444 | I32 l; | |
f7fe979e | 1445 | const char *hop; |
08ca2aa3 TH |
1446 | for (l=len, hop=s; l>0; l--, hop += UTF8SKIP(hop)) { |
1447 | if (hop >= strend) { | |
1448 | if (hop > strend) | |
1449 | Perl_croak(aTHX_ "Malformed UTF-8 string in unpack"); | |
1450 | break; | |
fc241834 | 1451 | } |
a6ec74c1 | 1452 | } |
08ca2aa3 TH |
1453 | if (hop > strend) |
1454 | Perl_croak(aTHX_ "Malformed UTF-8 string in unpack"); | |
1455 | len = hop - s; | |
1456 | } else if (len > strend - s) | |
1457 | len = strend - s; | |
1458 | ||
1459 | if (datumtype == 'Z') { | |
1460 | /* 'Z' strips stuff after first null */ | |
f7fe979e | 1461 | const char *ptr, *end; |
f337b084 TH |
1462 | end = s + len; |
1463 | for (ptr = s; ptr < end; ptr++) if (*ptr == 0) break; | |
08ca2aa3 TH |
1464 | sv = newSVpvn(s, ptr-s); |
1465 | if (howlen == e_star) /* exact for 'Z*' */ | |
1466 | len = ptr-s + (ptr != strend ? 1 : 0); | |
1467 | } else if (datumtype == 'A') { | |
1468 | /* 'A' strips both nulls and spaces */ | |
f7fe979e | 1469 | const char *ptr; |
18bdf90a TH |
1470 | if (utf8 && (symptr->flags & FLAG_WAS_UTF8)) { |
1471 | for (ptr = s+len-1; ptr >= s; ptr--) | |
1472 | if (*ptr != 0 && !UTF8_IS_CONTINUATION(*ptr) && | |
230e1fce | 1473 | !is_utf8_space((U8 *) ptr)) break; |
18bdf90a TH |
1474 | if (ptr >= s) ptr += UTF8SKIP(ptr); |
1475 | else ptr++; | |
28be1210 | 1476 | if (ptr > s+len) |
18bdf90a TH |
1477 | Perl_croak(aTHX_ "Malformed UTF-8 string in unpack"); |
1478 | } else { | |
1479 | for (ptr = s+len-1; ptr >= s; ptr--) | |
1480 | if (*ptr != 0 && !isSPACE(*ptr)) break; | |
1481 | ptr++; | |
1482 | } | |
08ca2aa3 TH |
1483 | sv = newSVpvn(s, ptr-s); |
1484 | } else sv = newSVpvn(s, len); | |
1485 | ||
1486 | if (utf8) { | |
1487 | SvUTF8_on(sv); | |
1488 | /* Undo any upgrade done due to need_utf8() */ | |
f337b084 | 1489 | if (!(symptr->flags & FLAG_WAS_UTF8)) |
08ca2aa3 | 1490 | sv_utf8_downgrade(sv, 0); |
a6ec74c1 | 1491 | } |
6e449a3a | 1492 | mXPUSHs(sv); |
08ca2aa3 | 1493 | s += len; |
a6ec74c1 JH |
1494 | break; |
1495 | case 'B': | |
08ca2aa3 TH |
1496 | case 'b': { |
1497 | char *str; | |
49704364 | 1498 | if (howlen == e_star || len > (strend - s) * 8) |
a6ec74c1 JH |
1499 | len = (strend - s) * 8; |
1500 | if (checksum) { | |
f337b084 | 1501 | if (utf8) |
08ca2aa3 | 1502 | while (len >= 8 && s < strend) { |
f337b084 | 1503 | cuv += PL_bitcount[uni_to_byte(aTHX_ &s, strend, datumtype)]; |
08ca2aa3 TH |
1504 | len -= 8; |
1505 | } | |
f337b084 | 1506 | else |
fc241834 | 1507 | while (len >= 8) { |
08ca2aa3 | 1508 | cuv += PL_bitcount[*(U8 *)s++]; |
fc241834 RGS |
1509 | len -= 8; |
1510 | } | |
08ca2aa3 TH |
1511 | if (len && s < strend) { |
1512 | U8 bits; | |
f337b084 TH |
1513 | bits = SHIFT_BYTE(utf8, s, strend, datumtype); |
1514 | if (datumtype == 'b') | |
a6ec74c1 | 1515 | while (len-- > 0) { |
92d41999 | 1516 | if (bits & 1) cuv++; |
a6ec74c1 JH |
1517 | bits >>= 1; |
1518 | } | |
f337b084 | 1519 | else |
a6ec74c1 | 1520 | while (len-- > 0) { |
08ca2aa3 | 1521 | if (bits & 0x80) cuv++; |
a6ec74c1 JH |
1522 | bits <<= 1; |
1523 | } | |
fc241834 | 1524 | } |
a6ec74c1 JH |
1525 | break; |
1526 | } | |
08ca2aa3 | 1527 | |
561b68a9 | 1528 | sv = sv_2mortal(newSV(len ? len : 1)); |
a6ec74c1 JH |
1529 | SvPOK_on(sv); |
1530 | str = SvPVX(sv); | |
1531 | if (datumtype == 'b') { | |
f337b084 | 1532 | U8 bits = 0; |
f7fe979e | 1533 | const I32 ai32 = len; |
08ca2aa3 TH |
1534 | for (len = 0; len < ai32; len++) { |
1535 | if (len & 7) bits >>= 1; | |
1536 | else if (utf8) { | |
1537 | if (s >= strend) break; | |
f337b084 | 1538 | bits = uni_to_byte(aTHX_ &s, strend, datumtype); |
08ca2aa3 TH |
1539 | } else bits = *(U8 *) s++; |
1540 | *str++ = bits & 1 ? '1' : '0'; | |
a6ec74c1 | 1541 | } |
08ca2aa3 | 1542 | } else { |
f337b084 | 1543 | U8 bits = 0; |
f7fe979e | 1544 | const I32 ai32 = len; |
08ca2aa3 TH |
1545 | for (len = 0; len < ai32; len++) { |
1546 | if (len & 7) bits <<= 1; | |
1547 | else if (utf8) { | |
1548 | if (s >= strend) break; | |
f337b084 | 1549 | bits = uni_to_byte(aTHX_ &s, strend, datumtype); |
08ca2aa3 TH |
1550 | } else bits = *(U8 *) s++; |
1551 | *str++ = bits & 0x80 ? '1' : '0'; | |
a6ec74c1 JH |
1552 | } |
1553 | } | |
1554 | *str = '\0'; | |
aa07b2f6 | 1555 | SvCUR_set(sv, str - SvPVX_const(sv)); |
08ca2aa3 | 1556 | XPUSHs(sv); |
a6ec74c1 | 1557 | break; |
08ca2aa3 | 1558 | } |
a6ec74c1 | 1559 | case 'H': |
08ca2aa3 | 1560 | case 'h': { |
3297d27d | 1561 | char *str = NULL; |
fc241834 | 1562 | /* Preliminary length estimate, acceptable for utf8 too */ |
49704364 | 1563 | if (howlen == e_star || len > (strend - s) * 2) |
a6ec74c1 | 1564 | len = (strend - s) * 2; |
858fe5e1 TC |
1565 | if (!checksum) { |
1566 | sv = sv_2mortal(newSV(len ? len : 1)); | |
1567 | SvPOK_on(sv); | |
1568 | str = SvPVX(sv); | |
1569 | } | |
a6ec74c1 | 1570 | if (datumtype == 'h') { |
f337b084 | 1571 | U8 bits = 0; |
9e27e96a | 1572 | I32 ai32 = len; |
fc241834 RGS |
1573 | for (len = 0; len < ai32; len++) { |
1574 | if (len & 1) bits >>= 4; | |
1575 | else if (utf8) { | |
1576 | if (s >= strend) break; | |
f337b084 | 1577 | bits = uni_to_byte(aTHX_ &s, strend, datumtype); |
fc241834 | 1578 | } else bits = * (U8 *) s++; |
858fe5e1 TC |
1579 | if (!checksum) |
1580 | *str++ = PL_hexdigit[bits & 15]; | |
a6ec74c1 | 1581 | } |
08ca2aa3 | 1582 | } else { |
f337b084 | 1583 | U8 bits = 0; |
f7fe979e | 1584 | const I32 ai32 = len; |
08ca2aa3 TH |
1585 | for (len = 0; len < ai32; len++) { |
1586 | if (len & 1) bits <<= 4; | |
1587 | else if (utf8) { | |
1588 | if (s >= strend) break; | |
f337b084 | 1589 | bits = uni_to_byte(aTHX_ &s, strend, datumtype); |
08ca2aa3 | 1590 | } else bits = *(U8 *) s++; |
858fe5e1 TC |
1591 | if (!checksum) |
1592 | *str++ = PL_hexdigit[(bits >> 4) & 15]; | |
a6ec74c1 JH |
1593 | } |
1594 | } | |
858fe5e1 TC |
1595 | if (!checksum) { |
1596 | *str = '\0'; | |
1597 | SvCUR_set(sv, str - SvPVX_const(sv)); | |
1598 | XPUSHs(sv); | |
1599 | } | |
a6ec74c1 | 1600 | break; |
08ca2aa3 | 1601 | } |
1651fc44 ML |
1602 | case 'C': |
1603 | if (len == 0) { | |
1604 | if (explicit_length) | |
1605 | /* Switch to "character" mode */ | |
1606 | utf8 = (symptr->flags & FLAG_DO_UTF8) ? 1 : 0; | |
1607 | break; | |
1608 | } | |
1609 | /* FALL THROUGH */ | |
a6ec74c1 | 1610 | case 'c': |
1651fc44 ML |
1611 | while (len-- > 0 && s < strend) { |
1612 | int aint; | |
1613 | if (utf8) | |
1614 | { | |
1615 | STRLEN retlen; | |
1616 | aint = utf8n_to_uvchr((U8 *) s, strend-s, &retlen, | |
1617 | ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANY); | |
1618 | if (retlen == (STRLEN) -1 || retlen == 0) | |
1619 | Perl_croak(aTHX_ "Malformed UTF-8 string in unpack"); | |
1620 | s += retlen; | |
1621 | } | |
1622 | else | |
1623 | aint = *(U8 *)(s)++; | |
1624 | if (aint >= 128 && datumtype != 'C') /* fake up signed chars */ | |
73cb7263 | 1625 | aint -= 256; |
08ca2aa3 | 1626 | if (!checksum) |
6e449a3a | 1627 | mPUSHi(aint); |
73cb7263 NC |
1628 | else if (checksum > bits_in_uv) |
1629 | cdouble += (NV)aint; | |
1630 | else | |
1631 | cuv += aint; | |
a6ec74c1 JH |
1632 | } |
1633 | break; | |
08ca2aa3 TH |
1634 | case 'W': |
1635 | W_checksum: | |
1651fc44 | 1636 | if (utf8) { |
08ca2aa3 | 1637 | while (len-- > 0 && s < strend) { |
08ca2aa3 | 1638 | STRLEN retlen; |
f7fe979e | 1639 | const UV val = utf8n_to_uvchr((U8 *) s, strend-s, &retlen, |
f337b084 | 1640 | ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANY); |
08ca2aa3 TH |
1641 | if (retlen == (STRLEN) -1 || retlen == 0) |
1642 | Perl_croak(aTHX_ "Malformed UTF-8 string in unpack"); | |
1643 | s += retlen; | |
1644 | if (!checksum) | |
6e449a3a | 1645 | mPUSHu(val); |
08ca2aa3 TH |
1646 | else if (checksum > bits_in_uv) |
1647 | cdouble += (NV) val; | |
d6d3e8bd | 1648 | else |
08ca2aa3 | 1649 | cuv += val; |
fc241834 | 1650 | } |
08ca2aa3 | 1651 | } else if (!checksum) |
a6ec74c1 | 1652 | while (len-- > 0) { |
f7fe979e | 1653 | const U8 ch = *(U8 *) s++; |
6e449a3a | 1654 | mPUSHu(ch); |
a6ec74c1 | 1655 | } |
08ca2aa3 TH |
1656 | else if (checksum > bits_in_uv) |
1657 | while (len-- > 0) cdouble += (NV) *(U8 *) s++; | |
1658 | else | |
1659 | while (len-- > 0) cuv += *(U8 *) s++; | |
a6ec74c1 JH |
1660 | break; |
1661 | case 'U': | |
35bcd338 | 1662 | if (len == 0) { |
c5333953 | 1663 | if (explicit_length && howlen != e_star) { |
08ca2aa3 | 1664 | /* Switch to "bytes in UTF-8" mode */ |
f337b084 | 1665 | if (symptr->flags & FLAG_DO_UTF8) utf8 = 0; |
08ca2aa3 TH |
1666 | else |
1667 | /* Should be impossible due to the need_utf8() test */ | |
1668 | Perl_croak(aTHX_ "U0 mode on a byte string"); | |
1669 | } | |
35bcd338 JH |
1670 | break; |
1671 | } | |
08ca2aa3 | 1672 | if (len > strend - s) len = strend - s; |
fc241834 | 1673 | if (!checksum) { |
08ca2aa3 TH |
1674 | if (len && unpack_only_one) len = 1; |
1675 | EXTEND(SP, len); | |
1676 | EXTEND_MORTAL(len); | |
fc241834 | 1677 | } |
08ca2aa3 TH |
1678 | while (len-- > 0 && s < strend) { |
1679 | STRLEN retlen; | |
1680 | UV auv; | |
1681 | if (utf8) { | |
1682 | U8 result[UTF8_MAXLEN]; | |
f7fe979e | 1683 | const char *ptr = s; |
08ca2aa3 | 1684 | STRLEN len; |
08ca2aa3 TH |
1685 | /* Bug: warns about bad utf8 even if we are short on bytes |
1686 | and will break out of the loop */ | |
230e1fce NC |
1687 | if (!uni_to_bytes(aTHX_ &ptr, strend, (char *) result, 1, |
1688 | 'U')) | |
08ca2aa3 TH |
1689 | break; |
1690 | len = UTF8SKIP(result); | |
fc241834 | 1691 | if (!uni_to_bytes(aTHX_ &ptr, strend, |
230e1fce | 1692 | (char *) &result[1], len-1, 'U')) break; |
08ca2aa3 TH |
1693 | auv = utf8n_to_uvuni(result, len, &retlen, ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANYUV); |
1694 | s = ptr; | |
1695 | } else { | |
1696 | auv = utf8n_to_uvuni((U8*)s, strend - s, &retlen, ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANYUV); | |
1697 | if (retlen == (STRLEN) -1 || retlen == 0) | |
1698 | Perl_croak(aTHX_ "Malformed UTF-8 string in unpack"); | |
1699 | s += retlen; | |
1700 | } | |
1701 | if (!checksum) | |
6e449a3a | 1702 | mPUSHu(auv); |
73cb7263 | 1703 | else if (checksum > bits_in_uv) |
08ca2aa3 | 1704 | cdouble += (NV) auv; |
73cb7263 | 1705 | else |
08ca2aa3 | 1706 | cuv += auv; |
a6ec74c1 JH |
1707 | } |
1708 | break; | |
49704364 WL |
1709 | case 's' | TYPE_IS_SHRIEKING: |
1710 | #if SHORTSIZE != SIZE16 | |
73cb7263 | 1711 | while (len-- > 0) { |
08ca2aa3 | 1712 | short ashort; |
f337b084 TH |
1713 | SHIFT_VAR(utf8, s, strend, ashort, datumtype); |
1714 | DO_BO_UNPACK(ashort, s); | |
08ca2aa3 | 1715 | if (!checksum) |
6e449a3a | 1716 | mPUSHi(ashort); |
73cb7263 NC |
1717 | else if (checksum > bits_in_uv) |
1718 | cdouble += (NV)ashort; | |
1719 | else | |
1720 | cuv += ashort; | |
49704364 WL |
1721 | } |
1722 | break; | |
1723 | #else | |
1724 | /* Fallthrough! */ | |
a6ec74c1 | 1725 | #endif |
49704364 | 1726 | case 's': |
73cb7263 | 1727 | while (len-- > 0) { |
08ca2aa3 TH |
1728 | I16 ai16; |
1729 | ||
1730 | #if U16SIZE > SIZE16 | |
1731 | ai16 = 0; | |
1732 | #endif | |
f337b084 | 1733 | SHIFT16(utf8, s, strend, &ai16, datumtype); |
73cb7263 | 1734 | DO_BO_UNPACK(ai16, 16); |
1109a392 | 1735 | #if U16SIZE > SIZE16 |
73cb7263 NC |
1736 | if (ai16 > 32767) |
1737 | ai16 -= 65536; | |
a6ec74c1 | 1738 | #endif |
08ca2aa3 | 1739 | if (!checksum) |
6e449a3a | 1740 | mPUSHi(ai16); |
73cb7263 NC |
1741 | else if (checksum > bits_in_uv) |
1742 | cdouble += (NV)ai16; | |
1743 | else | |
1744 | cuv += ai16; | |
a6ec74c1 JH |
1745 | } |
1746 | break; | |
49704364 WL |
1747 | case 'S' | TYPE_IS_SHRIEKING: |
1748 | #if SHORTSIZE != SIZE16 | |
73cb7263 | 1749 | while (len-- > 0) { |
08ca2aa3 | 1750 | unsigned short aushort; |
f337b084 TH |
1751 | SHIFT_VAR(utf8, s, strend, aushort, datumtype); |
1752 | DO_BO_UNPACK(aushort, s); | |
08ca2aa3 | 1753 | if (!checksum) |
6e449a3a | 1754 | mPUSHu(aushort); |
73cb7263 NC |
1755 | else if (checksum > bits_in_uv) |
1756 | cdouble += (NV)aushort; | |
1757 | else | |
1758 | cuv += aushort; | |
49704364 WL |
1759 | } |
1760 | break; | |
1761 | #else | |
486ec47a | 1762 | /* Fallthrough! */ |
49704364 | 1763 | #endif |
a6ec74c1 JH |
1764 | case 'v': |
1765 | case 'n': | |
1766 | case 'S': | |
73cb7263 | 1767 | while (len-- > 0) { |
08ca2aa3 TH |
1768 | U16 au16; |
1769 | #if U16SIZE > SIZE16 | |
1770 | au16 = 0; | |
1771 | #endif | |
f337b084 | 1772 | SHIFT16(utf8, s, strend, &au16, datumtype); |
08ca2aa3 | 1773 | DO_BO_UNPACK(au16, 16); |
a6ec74c1 | 1774 | #ifdef HAS_NTOHS |
73cb7263 NC |
1775 | if (datumtype == 'n') |
1776 | au16 = PerlSock_ntohs(au16); | |
a6ec74c1 JH |
1777 | #endif |
1778 | #ifdef HAS_VTOHS | |
73cb7263 NC |
1779 | if (datumtype == 'v') |
1780 | au16 = vtohs(au16); | |
a6ec74c1 | 1781 | #endif |
08ca2aa3 | 1782 | if (!checksum) |
6e449a3a | 1783 | mPUSHu(au16); |
73cb7263 | 1784 | else if (checksum > bits_in_uv) |
f337b084 | 1785 | cdouble += (NV) au16; |
73cb7263 NC |
1786 | else |
1787 | cuv += au16; | |
a6ec74c1 JH |
1788 | } |
1789 | break; | |
7212898e | 1790 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
068bd2e7 MHM |
1791 | case 'v' | TYPE_IS_SHRIEKING: |
1792 | case 'n' | TYPE_IS_SHRIEKING: | |
73cb7263 | 1793 | while (len-- > 0) { |
08ca2aa3 TH |
1794 | I16 ai16; |
1795 | # if U16SIZE > SIZE16 | |
1796 | ai16 = 0; | |
1797 | # endif | |
f337b084 | 1798 | SHIFT16(utf8, s, strend, &ai16, datumtype); |
08ca2aa3 | 1799 | # ifdef HAS_NTOHS |
73cb7263 | 1800 | if (datumtype == ('n' | TYPE_IS_SHRIEKING)) |
08ca2aa3 TH |
1801 | ai16 = (I16) PerlSock_ntohs((U16) ai16); |
1802 | # endif /* HAS_NTOHS */ | |
1803 | # ifdef HAS_VTOHS | |
73cb7263 | 1804 | if (datumtype == ('v' | TYPE_IS_SHRIEKING)) |
08ca2aa3 TH |
1805 | ai16 = (I16) vtohs((U16) ai16); |
1806 | # endif /* HAS_VTOHS */ | |
1807 | if (!checksum) | |
6e449a3a | 1808 | mPUSHi(ai16); |
73cb7263 | 1809 | else if (checksum > bits_in_uv) |
08ca2aa3 | 1810 | cdouble += (NV) ai16; |
73cb7263 NC |
1811 | else |
1812 | cuv += ai16; | |
068bd2e7 MHM |
1813 | } |
1814 | break; | |
08ca2aa3 | 1815 | #endif /* PERL_PACK_CAN_SHRIEKSIGN */ |
a6ec74c1 | 1816 | case 'i': |
49704364 | 1817 | case 'i' | TYPE_IS_SHRIEKING: |
73cb7263 | 1818 | while (len-- > 0) { |
08ca2aa3 | 1819 | int aint; |
f337b084 TH |
1820 | SHIFT_VAR(utf8, s, strend, aint, datumtype); |
1821 | DO_BO_UNPACK(aint, i); | |
08ca2aa3 | 1822 | if (!checksum) |
6e449a3a | 1823 | mPUSHi(aint); |
73cb7263 NC |
1824 | else if (checksum > bits_in_uv) |
1825 | cdouble += (NV)aint; | |
1826 | else | |
1827 | cuv += aint; | |
a6ec74c1 JH |
1828 | } |
1829 | break; | |
1830 | case 'I': | |
49704364 | 1831 | case 'I' | TYPE_IS_SHRIEKING: |
73cb7263 | 1832 | while (len-- > 0) { |
08ca2aa3 | 1833 | unsigned int auint; |
f337b084 TH |
1834 | SHIFT_VAR(utf8, s, strend, auint, datumtype); |
1835 | DO_BO_UNPACK(auint, i); | |
08ca2aa3 | 1836 | if (!checksum) |
6e449a3a | 1837 | mPUSHu(auint); |
73cb7263 NC |
1838 | else if (checksum > bits_in_uv) |
1839 | cdouble += (NV)auint; | |
1840 | else | |
1841 | cuv += auint; | |
a6ec74c1 JH |
1842 | } |
1843 | break; | |
92d41999 | 1844 | case 'j': |
73cb7263 | 1845 | while (len-- > 0) { |
08ca2aa3 | 1846 | IV aiv; |
f337b084 | 1847 | SHIFT_VAR(utf8, s, strend, aiv, datumtype); |
1109a392 | 1848 | #if IVSIZE == INTSIZE |
f337b084 | 1849 | DO_BO_UNPACK(aiv, i); |
1109a392 | 1850 | #elif IVSIZE == LONGSIZE |
f337b084 | 1851 | DO_BO_UNPACK(aiv, l); |
1109a392 | 1852 | #elif defined(HAS_QUAD) && IVSIZE == U64SIZE |
f337b084 | 1853 | DO_BO_UNPACK(aiv, 64); |
08ca2aa3 TH |
1854 | #else |
1855 | Perl_croak(aTHX_ "'j' not supported on this platform"); | |
1109a392 | 1856 | #endif |
08ca2aa3 | 1857 | if (!checksum) |
6e449a3a | 1858 | mPUSHi(aiv); |
73cb7263 NC |
1859 | else if (checksum > bits_in_uv) |
1860 | cdouble += (NV)aiv; | |
1861 | else | |
1862 | cuv += aiv; | |
92d41999 JH |
1863 | } |
1864 | break; | |
1865 | case 'J': | |
73cb7263 | 1866 | while (len-- > 0) { |
08ca2aa3 | 1867 | UV auv; |
f337b084 | 1868 | SHIFT_VAR(utf8, s, strend, auv, datumtype); |
08ca2aa3 | 1869 | #if IVSIZE == INTSIZE |
f337b084 | 1870 | DO_BO_UNPACK(auv, i); |
08ca2aa3 | 1871 | #elif IVSIZE == LONGSIZE |
f337b084 | 1872 | DO_BO_UNPACK(auv, l); |
08ca2aa3 | 1873 | #elif defined(HAS_QUAD) && IVSIZE == U64SIZE |
f337b084 | 1874 | DO_BO_UNPACK(auv, 64); |
08ca2aa3 TH |
1875 | #else |
1876 | Perl_croak(aTHX_ "'J' not supported on this platform"); | |
1109a392 | 1877 | #endif |
08ca2aa3 | 1878 | if (!checksum) |
6e449a3a | 1879 | mPUSHu(auv); |
73cb7263 NC |
1880 | else if (checksum > bits_in_uv) |
1881 | cdouble += (NV)auv; | |
1882 | else | |
1883 | cuv += auv; | |
92d41999 JH |
1884 | } |
1885 | break; | |
49704364 WL |
1886 | case 'l' | TYPE_IS_SHRIEKING: |
1887 | #if LONGSIZE != SIZE32 | |
73cb7263 | 1888 | while (len-- > 0) { |
08ca2aa3 | 1889 | long along; |
f337b084 TH |
1890 | SHIFT_VAR(utf8, s, strend, along, datumtype); |
1891 | DO_BO_UNPACK(along, l); | |
08ca2aa3 | 1892 | if (!checksum) |
6e449a3a | 1893 | mPUSHi(along); |
73cb7263 NC |
1894 | else if (checksum > bits_in_uv) |
1895 | cdouble += (NV)along; | |
1896 | else | |
1897 | cuv += along; | |
49704364 WL |
1898 | } |
1899 | break; | |
1900 | #else | |
1901 | /* Fallthrough! */ | |
a6ec74c1 | 1902 | #endif |
49704364 | 1903 | case 'l': |
73cb7263 | 1904 | while (len-- > 0) { |
08ca2aa3 TH |
1905 | I32 ai32; |
1906 | #if U32SIZE > SIZE32 | |
1907 | ai32 = 0; | |
1908 | #endif | |
f337b084 | 1909 | SHIFT32(utf8, s, strend, &ai32, datumtype); |
73cb7263 | 1910 | DO_BO_UNPACK(ai32, 32); |
25a9bd2a | 1911 | #if U32SIZE > SIZE32 |
08ca2aa3 | 1912 | if (ai32 > 2147483647) ai32 -= 4294967296; |
a6ec74c1 | 1913 | #endif |
08ca2aa3 | 1914 | if (!checksum) |
6e449a3a | 1915 | mPUSHi(ai32); |
73cb7263 NC |
1916 | else if (checksum > bits_in_uv) |
1917 | cdouble += (NV)ai32; | |
1918 | else | |
1919 | cuv += ai32; | |
a6ec74c1 JH |
1920 | } |
1921 | break; | |
49704364 WL |
1922 | case 'L' | TYPE_IS_SHRIEKING: |
1923 | #if LONGSIZE != SIZE32 | |
73cb7263 | 1924 | while (len-- > 0) { |
08ca2aa3 | 1925 | unsigned long aulong; |
f337b084 TH |
1926 | SHIFT_VAR(utf8, s, strend, aulong, datumtype); |
1927 | DO_BO_UNPACK(aulong, l); | |
08ca2aa3 | 1928 | if (!checksum) |
6e449a3a | 1929 | mPUSHu(aulong); |
73cb7263 NC |
1930 | else if (checksum > bits_in_uv) |
1931 | cdouble += (NV)aulong; | |
1932 | else | |
1933 | cuv += aulong; | |
49704364 WL |
1934 | } |
1935 | break; | |
1936 | #else | |
1937 | /* Fall through! */ | |
1938 | #endif | |
a6ec74c1 JH |
1939 | case 'V': |
1940 | case 'N': | |
1941 | case 'L': | |
73cb7263 | 1942 | while (len-- > 0) { |
08ca2aa3 TH |
1943 | U32 au32; |
1944 | #if U32SIZE > SIZE32 | |
1945 | au32 = 0; | |
1946 | #endif | |
f337b084 | 1947 | SHIFT32(utf8, s, strend, &au32, datumtype); |
08ca2aa3 | 1948 | DO_BO_UNPACK(au32, 32); |
a6ec74c1 | 1949 | #ifdef HAS_NTOHL |
73cb7263 NC |
1950 | if (datumtype == 'N') |
1951 | au32 = PerlSock_ntohl(au32); | |
a6ec74c1 JH |
1952 | #endif |
1953 | #ifdef HAS_VTOHL | |
73cb7263 NC |
1954 | if (datumtype == 'V') |
1955 | au32 = vtohl(au32); | |
a6ec74c1 | 1956 | #endif |
08ca2aa3 | 1957 | if (!checksum) |
6e449a3a | 1958 | mPUSHu(au32); |
fc241834 RGS |
1959 | else if (checksum > bits_in_uv) |
1960 | cdouble += (NV)au32; | |
1961 | else | |
1962 | cuv += au32; | |
a6ec74c1 JH |
1963 | } |
1964 | break; | |
7212898e | 1965 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
068bd2e7 MHM |
1966 | case 'V' | TYPE_IS_SHRIEKING: |
1967 | case 'N' | TYPE_IS_SHRIEKING: | |
73cb7263 | 1968 | while (len-- > 0) { |
08ca2aa3 TH |
1969 | I32 ai32; |
1970 | # if U32SIZE > SIZE32 | |
1971 | ai32 = 0; | |
1972 | # endif | |
f337b084 | 1973 | SHIFT32(utf8, s, strend, &ai32, datumtype); |
08ca2aa3 | 1974 | # ifdef HAS_NTOHL |
73cb7263 NC |
1975 | if (datumtype == ('N' | TYPE_IS_SHRIEKING)) |
1976 | ai32 = (I32)PerlSock_ntohl((U32)ai32); | |
08ca2aa3 TH |
1977 | # endif |
1978 | # ifdef HAS_VTOHL | |
73cb7263 NC |
1979 | if (datumtype == ('V' | TYPE_IS_SHRIEKING)) |
1980 | ai32 = (I32)vtohl((U32)ai32); | |
08ca2aa3 TH |
1981 | # endif |
1982 | if (!checksum) | |
6e449a3a | 1983 | mPUSHi(ai32); |
73cb7263 NC |
1984 | else if (checksum > bits_in_uv) |
1985 | cdouble += (NV)ai32; | |
1986 | else | |
1987 | cuv += ai32; | |
068bd2e7 MHM |
1988 | } |
1989 | break; | |
08ca2aa3 | 1990 | #endif /* PERL_PACK_CAN_SHRIEKSIGN */ |
a6ec74c1 | 1991 | case 'p': |
a6ec74c1 | 1992 | while (len-- > 0) { |
f7fe979e | 1993 | const char *aptr; |
f337b084 | 1994 | SHIFT_VAR(utf8, s, strend, aptr, datumtype); |
07409e01 | 1995 | DO_BO_UNPACK_PC(aptr); |
c4c5f44a | 1996 | /* newSVpv generates undef if aptr is NULL */ |
6e449a3a | 1997 | mPUSHs(newSVpv(aptr, 0)); |
a6ec74c1 JH |
1998 | } |
1999 | break; | |
2000 | case 'w': | |
a6ec74c1 JH |
2001 | { |
2002 | UV auv = 0; | |
2003 | U32 bytes = 0; | |
fc241834 | 2004 | |
08ca2aa3 TH |
2005 | while (len > 0 && s < strend) { |
2006 | U8 ch; | |
f337b084 | 2007 | ch = SHIFT_BYTE(utf8, s, strend, datumtype); |
08ca2aa3 | 2008 | auv = (auv << 7) | (ch & 0x7f); |
a6ec74c1 | 2009 | /* UTF8_IS_XXXXX not right here - using constant 0x80 */ |
08ca2aa3 | 2010 | if (ch < 0x80) { |
a6ec74c1 | 2011 | bytes = 0; |
6e449a3a | 2012 | mPUSHu(auv); |
a6ec74c1 JH |
2013 | len--; |
2014 | auv = 0; | |
08ca2aa3 | 2015 | continue; |
a6ec74c1 | 2016 | } |
08ca2aa3 | 2017 | if (++bytes >= sizeof(UV)) { /* promote to string */ |
10516c54 | 2018 | const char *t; |
a6ec74c1 | 2019 | |
f5992bc4 | 2020 | sv = Perl_newSVpvf(aTHX_ "%.*"UVuf, (int)TYPE_DIGITS(UV), auv); |
a6ec74c1 | 2021 | while (s < strend) { |
f337b084 | 2022 | ch = SHIFT_BYTE(utf8, s, strend, datumtype); |
08ca2aa3 TH |
2023 | sv = mul128(sv, (U8)(ch & 0x7f)); |
2024 | if (!(ch & 0x80)) { | |
a6ec74c1 JH |
2025 | bytes = 0; |
2026 | break; | |
2027 | } | |
2028 | } | |
10516c54 | 2029 | t = SvPV_nolen_const(sv); |
a6ec74c1 JH |
2030 | while (*t == '0') |
2031 | t++; | |
2032 | sv_chop(sv, t); | |
6e449a3a | 2033 | mPUSHs(sv); |
a6ec74c1 JH |
2034 | len--; |
2035 | auv = 0; | |
2036 | } | |
2037 | } | |
2038 | if ((s >= strend) && bytes) | |
49704364 | 2039 | Perl_croak(aTHX_ "Unterminated compressed integer in unpack"); |
a6ec74c1 JH |
2040 | } |
2041 | break; | |
2042 | case 'P': | |
49704364 WL |
2043 | if (symptr->howlen == e_star) |
2044 | Perl_croak(aTHX_ "'P' must have an explicit size in unpack"); | |
a6ec74c1 | 2045 | EXTEND(SP, 1); |
2d3e0934 | 2046 | if (s + sizeof(char*) <= strend) { |
08ca2aa3 | 2047 | char *aptr; |
f337b084 | 2048 | SHIFT_VAR(utf8, s, strend, aptr, datumtype); |
07409e01 | 2049 | DO_BO_UNPACK_PC(aptr); |
fc241834 | 2050 | /* newSVpvn generates undef if aptr is NULL */ |
59cd0e26 | 2051 | PUSHs(newSVpvn_flags(aptr, len, SVs_TEMP)); |
08ca2aa3 | 2052 | } |
a6ec74c1 JH |
2053 | break; |
2054 | #ifdef HAS_QUAD | |
2055 | case 'q': | |
73cb7263 | 2056 | while (len-- > 0) { |
08ca2aa3 | 2057 | Quad_t aquad; |
f337b084 TH |
2058 | SHIFT_VAR(utf8, s, strend, aquad, datumtype); |
2059 | DO_BO_UNPACK(aquad, 64); | |
08ca2aa3 | 2060 | if (!checksum) |
6e449a3a MHM |
2061 | mPUSHs(aquad >= IV_MIN && aquad <= IV_MAX ? |
2062 | newSViv((IV)aquad) : newSVnv((NV)aquad)); | |
73cb7263 NC |
2063 | else if (checksum > bits_in_uv) |
2064 | cdouble += (NV)aquad; | |
2065 | else | |
2066 | cuv += aquad; | |
2067 | } | |
a6ec74c1 JH |
2068 | break; |
2069 | case 'Q': | |
73cb7263 | 2070 | while (len-- > 0) { |
08ca2aa3 | 2071 | Uquad_t auquad; |
f337b084 TH |
2072 | SHIFT_VAR(utf8, s, strend, auquad, datumtype); |
2073 | DO_BO_UNPACK(auquad, 64); | |
08ca2aa3 | 2074 | if (!checksum) |
6e449a3a MHM |
2075 | mPUSHs(auquad <= UV_MAX ? |
2076 | newSVuv((UV)auquad) : newSVnv((NV)auquad)); | |
73cb7263 NC |
2077 | else if (checksum > bits_in_uv) |
2078 | cdouble += (NV)auquad; | |
2079 | else | |
2080 | cuv += auquad; | |
a6ec74c1 JH |
2081 | } |
2082 | break; | |
08ca2aa3 | 2083 | #endif /* HAS_QUAD */ |
a6ec74c1 JH |
2084 | /* float and double added gnb@melba.bby.oz.au 22/11/89 */ |
2085 | case 'f': | |
73cb7263 | 2086 | while (len-- > 0) { |
08ca2aa3 | 2087 | float afloat; |
f337b084 | 2088 | SHIFT_VAR(utf8, s, strend, afloat, datumtype); |
08ca2aa3 TH |
2089 | DO_BO_UNPACK_N(afloat, float); |
2090 | if (!checksum) | |
6e449a3a | 2091 | mPUSHn(afloat); |
08ca2aa3 | 2092 | else |
73cb7263 | 2093 | cdouble += afloat; |
fc241834 | 2094 | } |
a6ec74c1 JH |
2095 | break; |
2096 | case 'd': | |
73cb7263 | 2097 | while (len-- > 0) { |
08ca2aa3 | 2098 | double adouble; |
f337b084 | 2099 | SHIFT_VAR(utf8, s, strend, adouble, datumtype); |
08ca2aa3 TH |
2100 | DO_BO_UNPACK_N(adouble, double); |
2101 | if (!checksum) | |
6e449a3a | 2102 | mPUSHn(adouble); |
08ca2aa3 | 2103 | else |
73cb7263 | 2104 | cdouble += adouble; |
fc241834 | 2105 | } |
a6ec74c1 | 2106 | break; |
92d41999 | 2107 | case 'F': |
73cb7263 | 2108 | while (len-- > 0) { |
275663fa TC |
2109 | NV_bytes anv; |
2110 | SHIFT_BYTES(utf8, s, strend, anv.bytes, sizeof(anv.bytes), datumtype); | |
2111 | DO_BO_UNPACK_N(anv.nv, NV); | |
08ca2aa3 | 2112 | if (!checksum) |
275663fa | 2113 | mPUSHn(anv.nv); |
08ca2aa3 | 2114 | else |
275663fa | 2115 | cdouble += anv.nv; |
fc241834 | 2116 | } |
92d41999 JH |
2117 | break; |
2118 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) | |
2119 | case 'D': | |
73cb7263 | 2120 | while (len-- > 0) { |
275663fa TC |
2121 | ld_bytes aldouble; |
2122 | SHIFT_BYTES(utf8, s, strend, aldouble.bytes, sizeof(aldouble.bytes), datumtype); | |
2123 | DO_BO_UNPACK_N(aldouble.ld, long double); | |
08ca2aa3 | 2124 | if (!checksum) |
275663fa | 2125 | mPUSHn(aldouble.ld); |
08ca2aa3 | 2126 | else |
275663fa | 2127 | cdouble += aldouble.ld; |
92d41999 JH |
2128 | } |
2129 | break; | |
2130 | #endif | |
a6ec74c1 | 2131 | case 'u': |
858fe5e1 | 2132 | if (!checksum) { |
f7fe979e | 2133 | const STRLEN l = (STRLEN) (strend - s) * 3 / 4; |
561b68a9 | 2134 | sv = sv_2mortal(newSV(l)); |
08ca2aa3 TH |
2135 | if (l) SvPOK_on(sv); |
2136 | } | |
2137 | if (utf8) { | |
2138 | while (next_uni_uu(aTHX_ &s, strend, &len)) { | |
2139 | I32 a, b, c, d; | |
db187877 | 2140 | char hunk[3]; |
08ca2aa3 | 2141 | |
08ca2aa3 TH |
2142 | while (len > 0) { |
2143 | next_uni_uu(aTHX_ &s, strend, &a); | |
2144 | next_uni_uu(aTHX_ &s, strend, &b); | |
2145 | next_uni_uu(aTHX_ &s, strend, &c); | |
2146 | next_uni_uu(aTHX_ &s, strend, &d); | |
2147 | hunk[0] = (char)((a << 2) | (b >> 4)); | |
2148 | hunk[1] = (char)((b << 4) | (c >> 2)); | |
2149 | hunk[2] = (char)((c << 6) | d); | |
858fe5e1 TC |
2150 | if (!checksum) |
2151 | sv_catpvn(sv, hunk, (len > 3) ? 3 : len); | |
08ca2aa3 TH |
2152 | len -= 3; |
2153 | } | |
2154 | if (s < strend) { | |
f7fe979e AL |
2155 | if (*s == '\n') { |
2156 | s++; | |
2157 | } | |
08ca2aa3 TH |
2158 | else { |
2159 | /* possible checksum byte */ | |
f7fe979e AL |
2160 | const char *skip = s+UTF8SKIP(s); |
2161 | if (skip < strend && *skip == '\n') | |
2162 | s = skip+1; | |
08ca2aa3 TH |
2163 | } |
2164 | } | |
2165 | } | |
2166 | } else { | |
fc241834 RGS |
2167 | while (s < strend && *s > ' ' && ISUUCHAR(*s)) { |
2168 | I32 a, b, c, d; | |
db187877 | 2169 | char hunk[3]; |
a6ec74c1 | 2170 | |
fc241834 RGS |
2171 | len = PL_uudmap[*(U8*)s++] & 077; |
2172 | while (len > 0) { | |
2173 | if (s < strend && ISUUCHAR(*s)) | |
2174 | a = PL_uudmap[*(U8*)s++] & 077; | |
2175 | else | |
2176 | a = 0; | |
2177 | if (s < strend && ISUUCHAR(*s)) | |
2178 | b = PL_uudmap[*(U8*)s++] & 077; | |
2179 | else | |
2180 | b = 0; | |
2181 | if (s < strend && ISUUCHAR(*s)) | |
2182 | c = PL_uudmap[*(U8*)s++] & 077; | |
2183 | else | |
2184 | c = 0; | |
2185 | if (s < strend && ISUUCHAR(*s)) | |
2186 | d = PL_uudmap[*(U8*)s++] & 077; | |
2187 | else | |
2188 | d = 0; | |
2189 | hunk[0] = (char)((a << 2) | (b >> 4)); | |
2190 | hunk[1] = (char)((b << 4) | (c >> 2)); | |
2191 | hunk[2] = (char)((c << 6) | d); | |
858fe5e1 TC |
2192 | if (!checksum) |
2193 | sv_catpvn(sv, hunk, (len > 3) ? 3 : len); | |
fc241834 RGS |
2194 | len -= 3; |
2195 | } | |
2196 | if (*s == '\n') | |
2197 | s++; | |
2198 | else /* possible checksum byte */ | |
2199 | if (s + 1 < strend && s[1] == '\n') | |
2200 | s += 2; | |
a6ec74c1 | 2201 | } |
08ca2aa3 | 2202 | } |
858fe5e1 TC |
2203 | if (!checksum) |
2204 | XPUSHs(sv); | |
a6ec74c1 JH |
2205 | break; |
2206 | } | |
49704364 | 2207 | |
a6ec74c1 | 2208 | if (checksum) { |
1109a392 | 2209 | if (strchr("fFdD", TYPE_NO_MODIFIERS(datumtype)) || |
92d41999 | 2210 | (checksum > bits_in_uv && |
08ca2aa3 TH |
2211 | strchr("cCsSiIlLnNUWvVqQjJ", TYPE_NO_MODIFIERS(datumtype))) ) { |
2212 | NV trouble, anv; | |
a6ec74c1 | 2213 | |
08ca2aa3 | 2214 | anv = (NV) (1 << (checksum & 15)); |
a6ec74c1 JH |
2215 | while (checksum >= 16) { |
2216 | checksum -= 16; | |
08ca2aa3 | 2217 | anv *= 65536.0; |
a6ec74c1 | 2218 | } |
a6ec74c1 | 2219 | while (cdouble < 0.0) |
08ca2aa3 TH |
2220 | cdouble += anv; |
2221 | cdouble = Perl_modf(cdouble / anv, &trouble) * anv; | |
c4c5f44a | 2222 | sv = newSVnv(cdouble); |
a6ec74c1 JH |
2223 | } |
2224 | else { | |
fa8ec7c1 NC |
2225 | if (checksum < bits_in_uv) { |
2226 | UV mask = ((UV)1 << checksum) - 1; | |
92d41999 | 2227 | cuv &= mask; |
a6ec74c1 | 2228 | } |
c4c5f44a | 2229 | sv = newSVuv(cuv); |
a6ec74c1 | 2230 | } |
6e449a3a | 2231 | mXPUSHs(sv); |
a6ec74c1 JH |
2232 | checksum = 0; |
2233 | } | |
fc241834 | 2234 | |
49704364 WL |
2235 | if (symptr->flags & FLAG_SLASH){ |
2236 | if (SP - PL_stack_base - start_sp_offset <= 0) | |
2237 | Perl_croak(aTHX_ "'/' must follow a numeric type in unpack"); | |
2238 | if( next_symbol(symptr) ){ | |
2239 | if( symptr->howlen == e_number ) | |
2240 | Perl_croak(aTHX_ "Count after length/code in unpack" ); | |
2241 | if( beyond ){ | |
2242 | /* ...end of char buffer then no decent length available */ | |
2243 | Perl_croak(aTHX_ "length/code after end of string in unpack" ); | |
2244 | } else { | |
2245 | /* take top of stack (hope it's numeric) */ | |
2246 | len = POPi; | |
2247 | if( len < 0 ) | |
2248 | Perl_croak(aTHX_ "Negative '/' count in unpack" ); | |
2249 | } | |
2250 | } else { | |
2251 | Perl_croak(aTHX_ "Code missing after '/' in unpack" ); | |
2252 | } | |
2253 | datumtype = symptr->code; | |
21c16052 | 2254 | explicit_length = FALSE; |
49704364 WL |
2255 | goto redo_switch; |
2256 | } | |
a6ec74c1 | 2257 | } |
49704364 | 2258 | |
18529408 IZ |
2259 | if (new_s) |
2260 | *new_s = s; | |
2261 | PUTBACK; | |
2262 | return SP - PL_stack_base - start_sp_offset; | |
2263 | } | |
2264 | ||
2265 | PP(pp_unpack) | |
2266 | { | |
97aff369 | 2267 | dVAR; |
18529408 | 2268 | dSP; |
bab9c0ac | 2269 | dPOPPOPssrl; |
18529408 IZ |
2270 | I32 gimme = GIMME_V; |
2271 | STRLEN llen; | |
2272 | STRLEN rlen; | |
5c144d81 NC |
2273 | const char *pat = SvPV_const(left, llen); |
2274 | const char *s = SvPV_const(right, rlen); | |
f7fe979e AL |
2275 | const char *strend = s + rlen; |
2276 | const char *patend = pat + llen; | |
08ca2aa3 | 2277 | I32 cnt; |
18529408 IZ |
2278 | |
2279 | PUTBACK; | |
7accc089 | 2280 | cnt = unpackstring(pat, patend, s, strend, |
49704364 | 2281 | ((gimme == G_SCALAR) ? FLAG_UNPACK_ONLY_ONE : 0) |
f337b084 | 2282 | | (DO_UTF8(right) ? FLAG_DO_UTF8 : 0)); |
49704364 | 2283 | |
18529408 IZ |
2284 | SPAGAIN; |
2285 | if ( !cnt && gimme == G_SCALAR ) | |
2286 | PUSHs(&PL_sv_undef); | |
a6ec74c1 JH |
2287 | RETURN; |
2288 | } | |
2289 | ||
f337b084 | 2290 | STATIC U8 * |
f7fe979e | 2291 | doencodes(U8 *h, const char *s, I32 len) |
a6ec74c1 | 2292 | { |
f337b084 | 2293 | *h++ = PL_uuemap[len]; |
a6ec74c1 | 2294 | while (len > 2) { |
f337b084 TH |
2295 | *h++ = PL_uuemap[(077 & (s[0] >> 2))]; |
2296 | *h++ = PL_uuemap[(077 & (((s[0] << 4) & 060) | ((s[1] >> 4) & 017)))]; | |
2297 | *h++ = PL_uuemap[(077 & (((s[1] << 2) & 074) | ((s[2] >> 6) & 03)))]; | |
2298 | *h++ = PL_uuemap[(077 & (s[2] & 077))]; | |
a6ec74c1 JH |
2299 | s += 3; |
2300 | len -= 3; | |
2301 | } | |
2302 | if (len > 0) { | |
f7fe979e | 2303 | const char r = (len > 1 ? s[1] : '\0'); |
f337b084 TH |
2304 | *h++ = PL_uuemap[(077 & (s[0] >> 2))]; |
2305 | *h++ = PL_uuemap[(077 & (((s[0] << 4) & 060) | ((r >> 4) & 017)))]; | |
2306 | *h++ = PL_uuemap[(077 & ((r << 2) & 074))]; | |
2307 | *h++ = PL_uuemap[0]; | |
a6ec74c1 | 2308 | } |
f337b084 TH |
2309 | *h++ = '\n'; |
2310 | return h; | |
a6ec74c1 JH |
2311 | } |
2312 | ||
2313 | STATIC SV * | |
f7fe979e | 2314 | S_is_an_int(pTHX_ const char *s, STRLEN l) |
a6ec74c1 | 2315 | { |
8b6e33c7 AL |
2316 | SV *result = newSVpvn(s, l); |
2317 | char *const result_c = SvPV_nolen(result); /* convenience */ | |
2318 | char *out = result_c; | |
2319 | bool skip = 1; | |
2320 | bool ignore = 0; | |
a6ec74c1 | 2321 | |
7918f24d NC |
2322 | PERL_ARGS_ASSERT_IS_AN_INT; |
2323 | ||
a6ec74c1 JH |
2324 | while (*s) { |
2325 | switch (*s) { | |
2326 | case ' ': | |
2327 | break; | |
2328 | case '+': | |
2329 | if (!skip) { | |
2330 | SvREFCNT_dec(result); | |
2331 | return (NULL); | |
2332 | } | |
2333 | break; | |
2334 | case '0': | |
2335 | case '1': | |
2336 | case '2': | |
2337 | case '3': | |
2338 | case '4': | |
2339 | case '5': | |
2340 | case '6': | |
2341 | case '7': | |
2342 | case '8': | |
2343 | case '9': | |
2344 | skip = 0; | |
2345 | if (!ignore) { | |
2346 | *(out++) = *s; | |
2347 | } | |
2348 | break; | |
2349 | case '.': | |
2350 | ignore = 1; | |
2351 | break; | |
2352 | default: | |
2353 | SvREFCNT_dec(result); | |
2354 | return (NULL); | |
2355 | } | |
2356 | s++; | |
2357 | } | |
2358 | *(out++) = '\0'; | |
2359 | SvCUR_set(result, out - result_c); | |
2360 | return (result); | |
2361 | } | |
2362 | ||
2363 | /* pnum must be '\0' terminated */ | |
2364 | STATIC int | |
2365 | S_div128(pTHX_ SV *pnum, bool *done) | |
2366 | { | |
8b6e33c7 AL |
2367 | STRLEN len; |
2368 | char * const s = SvPV(pnum, len); | |
2369 | char *t = s; | |
2370 | int m = 0; | |
2371 | ||
7918f24d NC |
2372 | PERL_ARGS_ASSERT_DIV128; |
2373 | ||
8b6e33c7 AL |
2374 | *done = 1; |
2375 | while (*t) { | |
2376 | const int i = m * 10 + (*t - '0'); | |
2377 | const int r = (i >> 7); /* r < 10 */ | |
2378 | m = i & 0x7F; | |
2379 | if (r) { | |
2380 | *done = 0; | |
2381 | } | |
2382 | *(t++) = '0' + r; | |
a6ec74c1 | 2383 | } |
8b6e33c7 AL |
2384 | *(t++) = '\0'; |
2385 | SvCUR_set(pnum, (STRLEN) (t - s)); | |
2386 | return (m); | |
a6ec74c1 JH |
2387 | } |
2388 | ||
18529408 | 2389 | /* |
7accc089 JH |
2390 | =for apidoc packlist |
2391 | ||
2392 | The engine implementing pack() Perl function. | |
2393 | ||
bfce84ec AL |
2394 | =cut |
2395 | */ | |
7accc089 JH |
2396 | |
2397 | void | |
f7fe979e | 2398 | Perl_packlist(pTHX_ SV *cat, const char *pat, const char *patend, register SV **beglist, SV **endlist ) |
7accc089 | 2399 | { |
97aff369 | 2400 | dVAR; |
aadb217d JH |
2401 | tempsym_t sym; |
2402 | ||
7918f24d NC |
2403 | PERL_ARGS_ASSERT_PACKLIST; |
2404 | ||
f7fe979e | 2405 | TEMPSYM_INIT(&sym, pat, patend, FLAG_PACK); |
49704364 | 2406 | |
f337b084 TH |
2407 | /* We're going to do changes through SvPVX(cat). Make sure it's valid. |
2408 | Also make sure any UTF8 flag is loaded */ | |
56eb0262 | 2409 | SvPV_force_nolen(cat); |
bfce84ec AL |
2410 | if (DO_UTF8(cat)) |
2411 | sym.flags |= FLAG_PARSE_UTF8 | FLAG_DO_UTF8; | |
f337b084 | 2412 | |
49704364 WL |
2413 | (void)pack_rec( cat, &sym, beglist, endlist ); |
2414 | } | |
2415 | ||
f337b084 TH |
2416 | /* like sv_utf8_upgrade, but also repoint the group start markers */ |
2417 | STATIC void | |
2418 | marked_upgrade(pTHX_ SV *sv, tempsym_t *sym_ptr) { | |
2419 | STRLEN len; | |
2420 | tempsym_t *group; | |
f7fe979e AL |
2421 | const char *from_ptr, *from_start, *from_end, **marks, **m; |
2422 | char *to_start, *to_ptr; | |
f337b084 TH |
2423 | |
2424 | if (SvUTF8(sv)) return; | |
2425 | ||
aa07b2f6 | 2426 | from_start = SvPVX_const(sv); |
f337b084 TH |
2427 | from_end = from_start + SvCUR(sv); |
2428 | for (from_ptr = from_start; from_ptr < from_end; from_ptr++) | |
2429 | if (!NATIVE_IS_INVARIANT(*from_ptr)) break; | |
2430 | if (from_ptr == from_end) { | |
2431 | /* Simple case: no character needs to be changed */ | |
2432 | SvUTF8_on(sv); | |
2433 | return; | |
2434 | } | |
2435 | ||
3473cf63 | 2436 | len = (from_end-from_ptr)*UTF8_EXPAND+(from_ptr-from_start)+1; |
a02a5408 | 2437 | Newx(to_start, len, char); |
f337b084 TH |
2438 | Copy(from_start, to_start, from_ptr-from_start, char); |
2439 | to_ptr = to_start + (from_ptr-from_start); | |
2440 | ||
a02a5408 | 2441 | Newx(marks, sym_ptr->level+2, const char *); |
f337b084 TH |
2442 | for (group=sym_ptr; group; group = group->previous) |
2443 | marks[group->level] = from_start + group->strbeg; | |
2444 | marks[sym_ptr->level+1] = from_end+1; | |
2445 | for (m = marks; *m < from_ptr; m++) | |
2446 | *m = to_start + (*m-from_start); | |
2447 | ||
2448 | for (;from_ptr < from_end; from_ptr++) { | |
2449 | while (*m == from_ptr) *m++ = to_ptr; | |
230e1fce | 2450 | to_ptr = (char *) uvchr_to_utf8((U8 *) to_ptr, *(U8 *) from_ptr); |
f337b084 TH |
2451 | } |
2452 | *to_ptr = 0; | |
2453 | ||
2454 | while (*m == from_ptr) *m++ = to_ptr; | |
2455 | if (m != marks + sym_ptr->level+1) { | |
2456 | Safefree(marks); | |
2457 | Safefree(to_start); | |
5637ef5b NC |
2458 | Perl_croak(aTHX_ "panic: marks beyond string end, m=%p, marks=%p, " |
2459 | "level=%d", m, marks, sym_ptr->level); | |
f337b084 TH |
2460 | } |
2461 | for (group=sym_ptr; group; group = group->previous) | |
2462 | group->strbeg = marks[group->level] - to_start; | |
2463 | Safefree(marks); | |
2464 | ||
2465 | if (SvOOK(sv)) { | |
2466 | if (SvIVX(sv)) { | |
b162af07 | 2467 | SvLEN_set(sv, SvLEN(sv) + SvIVX(sv)); |
f337b084 TH |
2468 | from_start -= SvIVX(sv); |
2469 | SvIV_set(sv, 0); | |
2470 | } | |
2471 | SvFLAGS(sv) &= ~SVf_OOK; | |
2472 | } | |
2473 | if (SvLEN(sv) != 0) | |
2474 | Safefree(from_start); | |
f880fe2f | 2475 | SvPV_set(sv, to_start); |
b162af07 SP |
2476 | SvCUR_set(sv, to_ptr - to_start); |
2477 | SvLEN_set(sv, len); | |
f337b084 TH |
2478 | SvUTF8_on(sv); |
2479 | } | |
2480 | ||
2481 | /* Exponential string grower. Makes string extension effectively O(n) | |
2482 | needed says how many extra bytes we need (not counting the final '\0') | |
2483 | Only grows the string if there is an actual lack of space | |
2484 | */ | |
2485 | STATIC char * | |
0bd48802 | 2486 | S_sv_exp_grow(pTHX_ SV *sv, STRLEN needed) { |
f7fe979e AL |
2487 | const STRLEN cur = SvCUR(sv); |
2488 | const STRLEN len = SvLEN(sv); | |
f337b084 | 2489 | STRLEN extend; |
7918f24d NC |
2490 | |
2491 | PERL_ARGS_ASSERT_SV_EXP_GROW; | |
2492 | ||
f337b084 TH |
2493 | if (len - cur > needed) return SvPVX(sv); |
2494 | extend = needed > len ? needed : len; | |
2495 | return SvGROW(sv, len+extend+1); | |
2496 | } | |
49704364 WL |
2497 | |
2498 | STATIC | |
2499 | SV ** | |
f337b084 | 2500 | S_pack_rec(pTHX_ SV *cat, tempsym_t* symptr, SV **beglist, SV **endlist ) |
49704364 | 2501 | { |
97aff369 | 2502 | dVAR; |
49704364 | 2503 | tempsym_t lookahead; |
f337b084 TH |
2504 | I32 items = endlist - beglist; |
2505 | bool found = next_symbol(symptr); | |
2506 | bool utf8 = (symptr->flags & FLAG_PARSE_UTF8) ? 1 : 0; | |
041457d9 | 2507 | bool warn_utf8 = ckWARN(WARN_UTF8); |
f337b084 | 2508 | |
7918f24d NC |
2509 | PERL_ARGS_ASSERT_PACK_REC; |
2510 | ||
f337b084 TH |
2511 | if (symptr->level == 0 && found && symptr->code == 'U') { |
2512 | marked_upgrade(aTHX_ cat, symptr); | |
2513 | symptr->flags |= FLAG_DO_UTF8; | |
2514 | utf8 = 0; | |
49704364 | 2515 | } |
f337b084 | 2516 | symptr->strbeg = SvCUR(cat); |
49704364 WL |
2517 | |
2518 | while (found) { | |
f337b084 TH |
2519 | SV *fromstr; |
2520 | STRLEN fromlen; | |
2521 | I32 len; | |
a0714e2c | 2522 | SV *lengthcode = NULL; |
49704364 | 2523 | I32 datumtype = symptr->code; |
f337b084 TH |
2524 | howlen_t howlen = symptr->howlen; |
2525 | char *start = SvPVX(cat); | |
2526 | char *cur = start + SvCUR(cat); | |
49704364 | 2527 | |
f337b084 TH |
2528 | #define NEXTFROM (lengthcode ? lengthcode : items-- > 0 ? *beglist++ : &PL_sv_no) |
2529 | ||
2530 | switch (howlen) { | |
fc241834 | 2531 | case e_star: |
f337b084 TH |
2532 | len = strchr("@Xxu", TYPE_NO_MODIFIERS(datumtype)) ? |
2533 | 0 : items; | |
2534 | break; | |
2535 | default: | |
2536 | /* e_no_len and e_number */ | |
2537 | len = symptr->length; | |
49704364 WL |
2538 | break; |
2539 | } | |
2540 | ||
f337b084 | 2541 | if (len) { |
a7a3cfaa | 2542 | packprops_t props = packprops[TYPE_NO_ENDIANNESS(datumtype)]; |
f337b084 | 2543 | |
a7a3cfaa TH |
2544 | if (props && !(props & PACK_SIZE_UNPREDICTABLE)) { |
2545 | /* We can process this letter. */ | |
2546 | STRLEN size = props & PACK_SIZE_MASK; | |
2547 | GROWING(utf8, cat, start, cur, (STRLEN) len * size); | |
2548 | } | |
f337b084 TH |
2549 | } |
2550 | ||
49704364 WL |
2551 | /* Look ahead for next symbol. Do we have code/code? */ |
2552 | lookahead = *symptr; | |
2553 | found = next_symbol(&lookahead); | |
246f24af TH |
2554 | if (symptr->flags & FLAG_SLASH) { |
2555 | IV count; | |
f337b084 | 2556 | if (!found) Perl_croak(aTHX_ "Code missing after '/' in pack"); |
246f24af TH |
2557 | if (strchr("aAZ", lookahead.code)) { |
2558 | if (lookahead.howlen == e_number) count = lookahead.length; | |
2559 | else { | |
ce399ba6 NC |
2560 | if (items > 0) { |
2561 | if (SvGAMAGIC(*beglist)) { | |
2562 | /* Avoid reading the active data more than once | |
2563 | by copying it to a temporary. */ | |
2564 | STRLEN len; | |
2565 | const char *const pv = SvPV_const(*beglist, len); | |
740cce10 | 2566 | SV *const temp |
59cd0e26 NC |
2567 | = newSVpvn_flags(pv, len, |
2568 | SVs_TEMP | SvUTF8(*beglist)); | |
ce399ba6 NC |
2569 | *beglist = temp; |
2570 | } | |
246f24af TH |
2571 | count = DO_UTF8(*beglist) ? |
2572 | sv_len_utf8(*beglist) : sv_len(*beglist); | |
ce399ba6 | 2573 | } |
246f24af TH |
2574 | else count = 0; |
2575 | if (lookahead.code == 'Z') count++; | |
2576 | } | |
2577 | } else { | |
2578 | if (lookahead.howlen == e_number && lookahead.length < items) | |
2579 | count = lookahead.length; | |
2580 | else count = items; | |
2581 | } | |
2582 | lookahead.howlen = e_number; | |
2583 | lookahead.length = count; | |
2584 | lengthcode = sv_2mortal(newSViv(count)); | |
a6ec74c1 | 2585 | } |
49704364 | 2586 | |
fc241834 RGS |
2587 | /* Code inside the switch must take care to properly update |
2588 | cat (CUR length and '\0' termination) if it updated *cur and | |
f337b084 | 2589 | doesn't simply leave using break */ |
1109a392 | 2590 | switch(TYPE_NO_ENDIANNESS(datumtype)) { |
a6ec74c1 | 2591 | default: |
f337b084 TH |
2592 | Perl_croak(aTHX_ "Invalid type '%c' in pack", |
2593 | (int) TYPE_NO_MODIFIERS(datumtype)); | |
a6ec74c1 | 2594 | case '%': |
49704364 | 2595 | Perl_croak(aTHX_ "'%%' may not be used in pack"); |
28be1210 TH |
2596 | { |
2597 | char *from; | |
2598 | #ifdef PERL_PACK_CAN_SHRIEKSIGN | |
2599 | case '.' | TYPE_IS_SHRIEKING: | |
2600 | #endif | |
2601 | case '.': | |
2602 | if (howlen == e_star) from = start; | |
2603 | else if (len == 0) from = cur; | |
2604 | else { | |
2605 | tempsym_t *group = symptr; | |
2606 | ||
2607 | while (--len && group) group = group->previous; | |
2608 | from = group ? start + group->strbeg : start; | |
2609 | } | |
2610 | fromstr = NEXTFROM; | |
2611 | len = SvIV(fromstr); | |
2612 | goto resize; | |
2613 | #ifdef PERL_PACK_CAN_SHRIEKSIGN | |
2614 | case '@' | TYPE_IS_SHRIEKING: | |
2615 | #endif | |
a6ec74c1 | 2616 | case '@': |
28be1210 TH |
2617 | from = start + symptr->strbeg; |
2618 | resize: | |
2619 | #ifdef PERL_PACK_CAN_SHRIEKSIGN | |
2620 | if (utf8 && !(datumtype & TYPE_IS_SHRIEKING)) | |
2621 | #else /* PERL_PACK_CAN_SHRIEKSIGN */ | |
2622 | if (utf8) | |
2623 | #endif | |
2624 | if (len >= 0) { | |
2625 | while (len && from < cur) { | |
2626 | from += UTF8SKIP(from); | |
2627 | len--; | |
2628 | } | |
2629 | if (from > cur) | |
2630 | Perl_croak(aTHX_ "Malformed UTF-8 string in pack"); | |
2631 | if (len) { | |
2632 | /* Here we know from == cur */ | |
2633 | grow: | |
2634 | GROWING(0, cat, start, cur, len); | |
2635 | Zero(cur, len, char); | |
2636 | cur += len; | |
2637 | } else if (from < cur) { | |
2638 | len = cur - from; | |
2639 | goto shrink; | |
2640 | } else goto no_change; | |
2641 | } else { | |
2642 | cur = from; | |
2643 | len = -len; | |
2644 | goto utf8_shrink; | |
f337b084 | 2645 | } |
28be1210 TH |
2646 | else { |
2647 | len -= cur - from; | |
f337b084 | 2648 | if (len > 0) goto grow; |
28be1210 | 2649 | if (len == 0) goto no_change; |
fc241834 | 2650 | len = -len; |
28be1210 | 2651 | goto shrink; |
f337b084 | 2652 | } |
a6ec74c1 | 2653 | break; |
28be1210 | 2654 | } |
fc241834 | 2655 | case '(': { |
49704364 | 2656 | tempsym_t savsym = *symptr; |
66c611c5 MHM |
2657 | U32 group_modifiers = TYPE_MODIFIERS(datumtype & ~symptr->flags); |
2658 | symptr->flags |= group_modifiers; | |
49704364 WL |
2659 | symptr->patend = savsym.grpend; |
2660 | symptr->level++; | |
f337b084 | 2661 | symptr->previous = &lookahead; |
18529408 | 2662 | while (len--) { |
f337b084 TH |
2663 | U32 was_utf8; |
2664 | if (utf8) symptr->flags |= FLAG_PARSE_UTF8; | |
2665 | else symptr->flags &= ~FLAG_PARSE_UTF8; | |
2666 | was_utf8 = SvUTF8(cat); | |
49704364 | 2667 | symptr->patptr = savsym.grpbeg; |
f337b084 TH |
2668 | beglist = pack_rec(cat, symptr, beglist, endlist); |
2669 | if (SvUTF8(cat) != was_utf8) | |
2670 | /* This had better be an upgrade while in utf8==0 mode */ | |
2671 | utf8 = 1; | |
2672 | ||
49704364 | 2673 | if (savsym.howlen == e_star && beglist == endlist) |
18529408 IZ |
2674 | break; /* No way to continue */ |
2675 | } | |
ee790063 | 2676 | items = endlist - beglist; |
f337b084 TH |
2677 | lookahead.flags = symptr->flags & ~group_modifiers; |
2678 | goto no_change; | |
18529408 | 2679 | } |
62f95557 IZ |
2680 | case 'X' | TYPE_IS_SHRIEKING: |
2681 | if (!len) /* Avoid division by 0 */ | |
2682 | len = 1; | |
f337b084 TH |
2683 | if (utf8) { |
2684 | char *hop, *last; | |
2685 | I32 l = len; | |
2686 | hop = last = start; | |
2687 | while (hop < cur) { | |
2688 | hop += UTF8SKIP(hop); | |
2689 | if (--l == 0) { | |
2690 | last = hop; | |
2691 | l = len; | |
2692 | } | |
2693 | } | |
2694 | if (last > cur) | |
2695 | Perl_croak(aTHX_ "Malformed UTF-8 string in pack"); | |
2696 | cur = last; | |
2697 | break; | |
2698 | } | |
2699 | len = (cur-start) % len; | |
62f95557 | 2700 | /* FALL THROUGH */ |
a6ec74c1 | 2701 | case 'X': |
f337b084 TH |
2702 | if (utf8) { |
2703 | if (len < 1) goto no_change; | |
28be1210 | 2704 | utf8_shrink: |
f337b084 TH |
2705 | while (len > 0) { |
2706 | if (cur <= start) | |
28be1210 TH |
2707 | Perl_croak(aTHX_ "'%c' outside of string in pack", |
2708 | (int) TYPE_NO_MODIFIERS(datumtype)); | |
f337b084 TH |
2709 | while (--cur, UTF8_IS_CONTINUATION(*cur)) { |
2710 | if (cur <= start) | |
28be1210 TH |
2711 | Perl_croak(aTHX_ "'%c' outside of string in pack", |
2712 | (int) TYPE_NO_MODIFIERS(datumtype)); | |
f337b084 TH |
2713 | } |
2714 | len--; | |
2715 | } | |
2716 | } else { | |
fc241834 | 2717 | shrink: |
f337b084 | 2718 | if (cur - start < len) |
28be1210 TH |
2719 | Perl_croak(aTHX_ "'%c' outside of string in pack", |
2720 | (int) TYPE_NO_MODIFIERS(datumtype)); | |
f337b084 TH |
2721 | cur -= len; |
2722 | } | |
2723 | if (cur < start+symptr->strbeg) { | |
2724 | /* Make sure group starts don't point into the void */ | |
2725 | tempsym_t *group; | |
9e27e96a | 2726 | const STRLEN length = cur-start; |
f337b084 TH |
2727 | for (group = symptr; |
2728 | group && length < group->strbeg; | |
2729 | group = group->previous) group->strbeg = length; | |
2730 | lookahead.strbeg = length; | |
2731 | } | |
a6ec74c1 | 2732 | break; |
fc241834 RGS |
2733 | case 'x' | TYPE_IS_SHRIEKING: { |
2734 | I32 ai32; | |
62f95557 IZ |
2735 | if (!len) /* Avoid division by 0 */ |
2736 | len = 1; | |
230e1fce | 2737 | if (utf8) ai32 = utf8_length((U8 *) start, (U8 *) cur) % len; |
fc241834 RGS |
2738 | else ai32 = (cur - start) % len; |
2739 | if (ai32 == 0) goto no_change; | |
2740 | len -= ai32; | |
2741 | } | |
2742 | /* FALL THROUGH */ | |
a6ec74c1 | 2743 | case 'x': |
f337b084 | 2744 | goto grow; |
a6ec74c1 JH |
2745 | case 'A': |
2746 | case 'Z': | |
f337b084 | 2747 | case 'a': { |
f7fe979e | 2748 | const char *aptr; |
f337b084 | 2749 | |
a6ec74c1 | 2750 | fromstr = NEXTFROM; |
e62f0680 | 2751 | aptr = SvPV_const(fromstr, fromlen); |
f337b084 | 2752 | if (DO_UTF8(fromstr)) { |
f7fe979e | 2753 | const char *end, *s; |
f337b084 TH |
2754 | |
2755 | if (!utf8 && !SvUTF8(cat)) { | |
2756 | marked_upgrade(aTHX_ cat, symptr); | |
2757 | lookahead.flags |= FLAG_DO_UTF8; | |
2758 | lookahead.strbeg = symptr->strbeg; | |
2759 | utf8 = 1; | |
2760 | start = SvPVX(cat); | |
2761 | cur = start + SvCUR(cat); | |
2762 | } | |
fc241834 | 2763 | if (howlen == e_star) { |
f337b084 TH |
2764 | if (utf8) goto string_copy; |
2765 | len = fromlen+1; | |
2766 | } | |
2767 | s = aptr; | |
2768 | end = aptr + fromlen; | |
2769 | fromlen = datumtype == 'Z' ? len-1 : len; | |
2770 | while ((I32) fromlen > 0 && s < end) { | |
2771 | s += UTF8SKIP(s); | |
2772 | fromlen--; | |
2773 | } | |
2774 | if (s > end) | |
2775 | Perl_croak(aTHX_ "Malformed UTF-8 string in pack"); | |
2776 | if (utf8) { | |
fc241834 | 2777 | len = fromlen; |
f337b084 TH |
2778 | if (datumtype == 'Z') len++; |
2779 | fromlen = s-aptr; | |
2780 | len += fromlen; | |
fc241834 | 2781 | |
f337b084 | 2782 | goto string_copy; |
fc241834 | 2783 | } |
f337b084 TH |
2784 | fromlen = len - fromlen; |
2785 | if (datumtype == 'Z') fromlen--; | |
2786 | if (howlen == e_star) { | |
2787 | len = fromlen; | |
2788 | if (datumtype == 'Z') len++; | |
fc241834 | 2789 | } |
f337b084 | 2790 | GROWING(0, cat, start, cur, len); |
fc241834 | 2791 | if (!uni_to_bytes(aTHX_ &aptr, end, cur, fromlen, |
f337b084 | 2792 | datumtype | TYPE_IS_PACK)) |
5637ef5b NC |
2793 | Perl_croak(aTHX_ "panic: predicted utf8 length not available, " |
2794 | "for '%c', aptr=%p end=%p cur=%p, fromlen=%"UVuf, | |
2795 | (int)datumtype, aptr, end, cur, (UV)fromlen); | |
f337b084 | 2796 | cur += fromlen; |
a6ec74c1 | 2797 | len -= fromlen; |
f337b084 TH |
2798 | } else if (utf8) { |
2799 | if (howlen == e_star) { | |
2800 | len = fromlen; | |
2801 | if (datumtype == 'Z') len++; | |
a6ec74c1 | 2802 | } |
f337b084 TH |
2803 | if (len <= (I32) fromlen) { |
2804 | fromlen = len; | |
2805 | if (datumtype == 'Z' && fromlen > 0) fromlen--; | |
2806 | } | |
fc241834 | 2807 | /* assumes a byte expands to at most UTF8_EXPAND bytes on |
3473cf63 RGS |
2808 | upgrade, so: |
2809 | expected_length <= from_len*UTF8_EXPAND + (len-from_len) */ | |
2810 | GROWING(0, cat, start, cur, fromlen*(UTF8_EXPAND-1)+len); | |
f337b084 TH |
2811 | len -= fromlen; |
2812 | while (fromlen > 0) { | |
230e1fce | 2813 | cur = (char *) uvchr_to_utf8((U8 *) cur, * (U8 *) aptr); |
f337b084 TH |
2814 | aptr++; |
2815 | fromlen--; | |
fc241834 | 2816 | } |
f337b084 TH |
2817 | } else { |
2818 | string_copy: | |
2819 | if (howlen == e_star) { | |
2820 | len = fromlen; | |
2821 | if (datumtype == 'Z') len++; | |
2822 | } | |
2823 | if (len <= (I32) fromlen) { | |
2824 | fromlen = len; | |
2825 | if (datumtype == 'Z' && fromlen > 0) fromlen--; | |
a6ec74c1 | 2826 | } |
f337b084 TH |
2827 | GROWING(0, cat, start, cur, len); |
2828 | Copy(aptr, cur, fromlen, char); | |
2829 | cur += fromlen; | |
2830 | len -= fromlen; | |
a6ec74c1 | 2831 | } |
f337b084 TH |
2832 | memset(cur, datumtype == 'A' ? ' ' : '\0', len); |
2833 | cur += len; | |
3c4fb04a | 2834 | SvTAINT(cat); |
a6ec74c1 | 2835 | break; |
f337b084 | 2836 | } |
a6ec74c1 | 2837 | case 'B': |
f337b084 | 2838 | case 'b': { |
b83604b4 | 2839 | const char *str, *end; |
f337b084 TH |
2840 | I32 l, field_len; |
2841 | U8 bits; | |
2842 | bool utf8_source; | |
2843 | U32 utf8_flags; | |
a6ec74c1 | 2844 | |
fc241834 | 2845 | fromstr = NEXTFROM; |
b83604b4 | 2846 | str = SvPV_const(fromstr, fromlen); |
f337b084 TH |
2847 | end = str + fromlen; |
2848 | if (DO_UTF8(fromstr)) { | |
2849 | utf8_source = TRUE; | |
041457d9 | 2850 | utf8_flags = warn_utf8 ? 0 : UTF8_ALLOW_ANY; |
f337b084 TH |
2851 | } else { |
2852 | utf8_source = FALSE; | |
2853 | utf8_flags = 0; /* Unused, but keep compilers happy */ | |
2854 | } | |
2855 | if (howlen == e_star) len = fromlen; | |
2856 | field_len = (len+7)/8; | |
2857 | GROWING(utf8, cat, start, cur, field_len); | |
2858 | if (len > (I32)fromlen) len = fromlen; | |
2859 | bits = 0; | |
2860 | l = 0; | |
2861 | if (datumtype == 'B') | |
2862 | while (l++ < len) { | |
2863 | if (utf8_source) { | |
95b63a38 | 2864 | UV val = 0; |
f337b084 TH |
2865 | NEXT_UNI_VAL(val, cur, str, end, utf8_flags); |
2866 | bits |= val & 1; | |
2867 | } else bits |= *str++ & 1; | |
2868 | if (l & 7) bits <<= 1; | |
fc241834 | 2869 | else { |
f337b084 TH |
2870 | PUSH_BYTE(utf8, cur, bits); |
2871 | bits = 0; | |
a6ec74c1 JH |
2872 | } |
2873 | } | |
f337b084 TH |
2874 | else |
2875 | /* datumtype == 'b' */ | |
2876 | while (l++ < len) { | |
2877 | if (utf8_source) { | |
95b63a38 | 2878 | UV val = 0; |
f337b084 TH |
2879 | NEXT_UNI_VAL(val, cur, str, end, utf8_flags); |
2880 | if (val & 1) bits |= 0x80; | |
2881 | } else if (*str++ & 1) | |
2882 | bits |= 0x80; | |
2883 | if (l & 7) bits >>= 1; | |
fc241834 | 2884 | else { |
f337b084 TH |
2885 | PUSH_BYTE(utf8, cur, bits); |
2886 | bits = 0; | |
a6ec74c1 JH |
2887 | } |
2888 | } | |
f337b084 TH |
2889 | l--; |
2890 | if (l & 7) { | |
fc241834 | 2891 | if (datumtype == 'B') |
f337b084 | 2892 | bits <<= 7 - (l & 7); |
fc241834 | 2893 | else |
f337b084 TH |
2894 | bits >>= 7 - (l & 7); |
2895 | PUSH_BYTE(utf8, cur, bits); | |
2896 | l += 7; | |
a6ec74c1 | 2897 | } |
f337b084 TH |
2898 | /* Determine how many chars are left in the requested field */ |
2899 | l /= 8; | |
2900 | if (howlen == e_star) field_len = 0; | |
2901 | else field_len -= l; | |
2902 | Zero(cur, field_len, char); | |
2903 | cur += field_len; | |
a6ec74c1 | 2904 | break; |
f337b084 | 2905 | } |
a6ec74c1 | 2906 | case 'H': |
f337b084 | 2907 | case 'h': { |
10516c54 | 2908 | const char *str, *end; |
f337b084 TH |
2909 | I32 l, field_len; |
2910 | U8 bits; | |
2911 | bool utf8_source; | |
2912 | U32 utf8_flags; | |
a6ec74c1 | 2913 | |
fc241834 | 2914 | fromstr = NEXTFROM; |
10516c54 | 2915 | str = SvPV_const(fromstr, fromlen); |
f337b084 TH |
2916 | end = str + fromlen; |
2917 | if (DO_UTF8(fromstr)) { | |
2918 | utf8_source = TRUE; | |
041457d9 | 2919 | utf8_flags = warn_utf8 ? 0 : UTF8_ALLOW_ANY; |
f337b084 TH |
2920 | } else { |
2921 | utf8_source = FALSE; | |
2922 | utf8_flags = 0; /* Unused, but keep compilers happy */ | |
2923 | } | |
2924 | if (howlen == e_star) len = fromlen; | |
2925 | field_len = (len+1)/2; | |
2926 | GROWING(utf8, cat, start, cur, field_len); | |
2927 | if (!utf8 && len > (I32)fromlen) len = fromlen; | |
2928 | bits = 0; | |
2929 | l = 0; | |
2930 | if (datumtype == 'H') | |
2931 | while (l++ < len) { | |
2932 | if (utf8_source) { | |
95b63a38 | 2933 | UV val = 0; |
f337b084 TH |
2934 | NEXT_UNI_VAL(val, cur, str, end, utf8_flags); |
2935 | if (val < 256 && isALPHA(val)) | |
2936 | bits |= (val + 9) & 0xf; | |
a6ec74c1 | 2937 | else |
f337b084 TH |
2938 | bits |= val & 0xf; |
2939 | } else if (isALPHA(*str)) | |
2940 | bits |= (*str++ + 9) & 0xf; | |
2941 | else | |
2942 | bits |= *str++ & 0xf; | |
2943 | if (l & 1) bits <<= 4; | |
fc241834 | 2944 | else { |
f337b084 TH |
2945 | PUSH_BYTE(utf8, cur, bits); |
2946 | bits = 0; | |
a6ec74c1 JH |
2947 | } |
2948 | } | |
f337b084 TH |
2949 | else |
2950 | while (l++ < len) { | |
2951 | if (utf8_source) { | |
95b63a38 | 2952 | UV val = 0; |
f337b084 TH |
2953 | NEXT_UNI_VAL(val, cur, str, end, utf8_flags); |
2954 | if (val < 256 && isALPHA(val)) | |
2955 | bits |= ((val + 9) & 0xf) << 4; | |
a6ec74c1 | 2956 | else |
f337b084 TH |
2957 | bits |= (val & 0xf) << 4; |
2958 | } else if (isALPHA(*str)) | |
2959 | bits |= ((*str++ + 9) & 0xf) << 4; | |
2960 | else | |
2961 | bits |= (*str++ & 0xf) << 4; | |
2962 | if (l & 1) bits >>= 4; | |
fc241834 | 2963 | else { |
f337b084 TH |
2964 | PUSH_BYTE(utf8, cur, bits); |
2965 | bits = 0; | |
a6ec74c1 | 2966 | } |
fc241834 | 2967 | } |
f337b084 TH |
2968 | l--; |
2969 | if (l & 1) { | |
2970 | PUSH_BYTE(utf8, cur, bits); | |
2971 | l++; | |
2972 | } | |
2973 | /* Determine how many chars are left in the requested field */ | |
2974 | l /= 2; | |
2975 | if (howlen == e_star) field_len = 0; | |
2976 | else field_len -= l; | |
2977 | Zero(cur, field_len, char); | |
2978 | cur += field_len; | |
2979 | break; | |
fc241834 RGS |
2980 | } |
2981 | case 'c': | |
f337b084 TH |
2982 | while (len-- > 0) { |
2983 | IV aiv; | |
2984 | fromstr = NEXTFROM; | |
2985 | aiv = SvIV(fromstr); | |
a2a5de95 NC |
2986 | if ((-128 > aiv || aiv > 127)) |
2987 | Perl_ck_warner(aTHX_ packWARN(WARN_PACK), | |
2988 | "Character in 'c' format wrapped in pack"); | |
585ec06d | 2989 | PUSH_BYTE(utf8, cur, (U8)(aiv & 0xff)); |
a6ec74c1 JH |
2990 | } |
2991 | break; | |
2992 | case 'C': | |
f337b084 TH |
2993 | if (len == 0) { |
2994 | utf8 = (symptr->flags & FLAG_DO_UTF8) ? 1 : 0; | |
2995 | break; | |
2996 | } | |
a6ec74c1 | 2997 | while (len-- > 0) { |
f337b084 | 2998 | IV aiv; |
a6ec74c1 | 2999 | fromstr = NEXTFROM; |
f337b084 | 3000 | aiv = SvIV(fromstr); |
a2a5de95 NC |
3001 | if ((0 > aiv || aiv > 0xff)) |
3002 | Perl_ck_warner(aTHX_ packWARN(WARN_PACK), | |
3003 | "Character in 'C' format wrapped in pack"); | |
1651fc44 | 3004 | PUSH_BYTE(utf8, cur, (U8)(aiv & 0xff)); |
f337b084 | 3005 | } |
fc241834 RGS |
3006 | break; |
3007 | case 'W': { | |
3008 | char *end; | |
670f1322 | 3009 | U8 in_bytes = (U8)IN_BYTES; |
fc241834 RGS |
3010 | |
3011 | end = start+SvLEN(cat)-1; | |
3012 | if (utf8) end -= UTF8_MAXLEN-1; | |
3013 | while (len-- > 0) { | |
3014 | UV auv; | |
3015 | fromstr = NEXTFROM; | |
3016 | auv = SvUV(fromstr); | |
3017 | if (in_bytes) auv = auv % 0x100; | |
3018 | if (utf8) { | |
3019 | W_utf8: | |
3020 | if (cur > end) { | |
3021 | *cur = '\0'; | |
b162af07 | 3022 | SvCUR_set(cat, cur - start); |
fc241834 RGS |
3023 | |
3024 | GROWING(0, cat, start, cur, len+UTF8_MAXLEN); | |
3025 | end = start+SvLEN(cat)-UTF8_MAXLEN; | |
3026 | } | |
230e1fce NC |
3027 | cur = (char *) uvuni_to_utf8_flags((U8 *) cur, |
3028 | NATIVE_TO_UNI(auv), | |
041457d9 | 3029 | warn_utf8 ? |
230e1fce | 3030 | 0 : UNICODE_ALLOW_ANY); |
fc241834 RGS |
3031 | } else { |
3032 | if (auv >= 0x100) { | |
3033 | if (!SvUTF8(cat)) { | |
3034 | *cur = '\0'; | |
b162af07 | 3035 | SvCUR_set(cat, cur - start); |
fc241834 RGS |
3036 | marked_upgrade(aTHX_ cat, symptr); |
3037 | lookahead.flags |= FLAG_DO_UTF8; | |
3038 | lookahead.strbeg = symptr->strbeg; | |
3039 | utf8 = 1; | |
3040 | start = SvPVX(cat); | |
3041 | cur = start + SvCUR(cat); | |
3042 | end = start+SvLEN(cat)-UTF8_MAXLEN; | |
3043 | goto W_utf8; | |
3044 | } | |
a2a5de95 NC |
3045 | Perl_ck_warner(aTHX_ packWARN(WARN_PACK), |
3046 | "Character in 'W' format wrapped in pack"); | |
fc241834 RGS |
3047 | auv &= 0xff; |
3048 | } | |
3049 | if (cur >= end) { | |
3050 | *cur = '\0'; | |
b162af07 | 3051 | SvCUR_set(cat, cur - start); |
fc241834 RGS |
3052 | GROWING(0, cat, start, cur, len+1); |
3053 | end = start+SvLEN(cat)-1; | |
3054 | } | |
fe2774ed | 3055 | *(U8 *) cur++ = (U8)auv; |
a6ec74c1 JH |
3056 | } |
3057 | } | |
3058 | break; | |
fc241834 RGS |
3059 | } |
3060 | case 'U': { | |
3061 | char *end; | |
3062 | ||
3063 | if (len == 0) { | |
3064 | if (!(symptr->flags & FLAG_DO_UTF8)) { | |
3065 | marked_upgrade(aTHX_ cat, symptr); | |
3066 | lookahead.flags |= FLAG_DO_UTF8; | |
3067 | lookahead.strbeg = symptr->strbeg; | |
3068 | } | |
3069 | utf8 = 0; | |
3070 | goto no_change; | |
3071 | } | |
3072 | ||
3073 | end = start+SvLEN(cat); | |
3074 | if (!utf8) end -= UTF8_MAXLEN; | |
a6ec74c1 | 3075 | while (len-- > 0) { |
fc241834 | 3076 | UV auv; |
a6ec74c1 | 3077 | fromstr = NEXTFROM; |
fc241834 RGS |
3078 | auv = SvUV(fromstr); |
3079 | if (utf8) { | |
230e1fce | 3080 | U8 buffer[UTF8_MAXLEN], *endb; |
fc241834 | 3081 | endb = uvuni_to_utf8_flags(buffer, auv, |
041457d9 | 3082 | warn_utf8 ? |
fc241834 RGS |
3083 | 0 : UNICODE_ALLOW_ANY); |
3084 | if (cur+(endb-buffer)*UTF8_EXPAND >= end) { | |
3085 | *cur = '\0'; | |
b162af07 | 3086 | SvCUR_set(cat, cur - start); |
fc241834 RGS |
3087 | GROWING(0, cat, start, cur, |
3088 | len+(endb-buffer)*UTF8_EXPAND); | |
3089 | end = start+SvLEN(cat); | |
3090 | } | |
64844641 | 3091 | cur = bytes_to_uni(buffer, endb-buffer, cur); |
fc241834 RGS |
3092 | } else { |
3093 | if (cur >= end) { | |
3094 | *cur = '\0'; | |
b162af07 | 3095 | SvCUR_set(cat, cur - start); |
fc241834 RGS |
3096 | GROWING(0, cat, start, cur, len+UTF8_MAXLEN); |
3097 | end = start+SvLEN(cat)-UTF8_MAXLEN; | |
3098 | } | |
230e1fce | 3099 | cur = (char *) uvuni_to_utf8_flags((U8 *) cur, auv, |
041457d9 | 3100 | warn_utf8 ? |
230e1fce | 3101 | 0 : UNICODE_ALLOW_ANY); |
fc241834 | 3102 | } |
a6ec74c1 | 3103 | } |
a6ec74c1 | 3104 | break; |
fc241834 | 3105 | } |
a6ec74c1 JH |
3106 | /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */ |
3107 | case 'f': | |
a6ec74c1 | 3108 | while (len-- > 0) { |
f337b084 TH |
3109 | float afloat; |
3110 | NV anv; | |
a6ec74c1 | 3111 | fromstr = NEXTFROM; |
f337b084 | 3112 | anv = SvNV(fromstr); |
5cdb9e01 | 3113 | #ifdef __VOS__ |
f337b084 | 3114 | /* VOS does not automatically map a floating-point overflow |
fc241834 RGS |
3115 | during conversion from double to float into infinity, so we |
3116 | do it by hand. This code should either be generalized for | |
3117 | any OS that needs it, or removed if and when VOS implements | |
3118 | posix-976 (suggestion to support mapping to infinity). | |
3119 | Paul.Green@stratus.com 02-04-02. */ | |
3722f0dc PG |
3120 | { |
3121 | extern const float _float_constants[]; | |
f337b084 | 3122 | if (anv > FLT_MAX) |
fc241834 | 3123 | afloat = _float_constants[0]; /* single prec. inf. */ |
f337b084 | 3124 | else if (anv < -FLT_MAX) |
fc241834 | 3125 | afloat = _float_constants[0]; /* single prec. inf. */ |
f337b084 | 3126 | else afloat = (float) anv; |
3722f0dc | 3127 | } |
f337b084 | 3128 | #else /* __VOS__ */ |
baf3cf9c | 3129 | # if defined(VMS) && !defined(__IEEE_FP) |
f337b084 | 3130 | /* IEEE fp overflow shenanigans are unavailable on VAX and optional |
fc241834 RGS |
3131 | * on Alpha; fake it if we don't have them. |
3132 | */ | |
f337b084 | 3133 | if (anv > FLT_MAX) |
fc241834 | 3134 | afloat = FLT_MAX; |
f337b084 | 3135 | else if (anv < -FLT_MAX) |
fc241834 | 3136 | afloat = -FLT_MAX; |
f337b084 | 3137 | else afloat = (float)anv; |
baf3cf9c | 3138 | # else |
f337b084 | 3139 | afloat = (float)anv; |
baf3cf9c | 3140 | # endif |
f337b084 | 3141 | #endif /* __VOS__ */ |
1109a392 | 3142 | DO_BO_PACK_N(afloat, float); |
f337b084 | 3143 | PUSH_VAR(utf8, cur, afloat); |
a6ec74c1 JH |
3144 | } |
3145 | break; | |
3146 | case 'd': | |
a6ec74c1 | 3147 | while (len-- > 0) { |
f337b084 TH |
3148 | double adouble; |
3149 | NV anv; | |
a6ec74c1 | 3150 | fromstr = NEXTFROM; |
f337b084 | 3151 | anv = SvNV(fromstr); |
5cdb9e01 | 3152 | #ifdef __VOS__ |
f337b084 | 3153 | /* VOS does not automatically map a floating-point overflow |
fc241834 RGS |
3154 | during conversion from long double to double into infinity, |
3155 | so we do it by hand. This code should either be generalized | |
3156 | for any OS that needs it, or removed if and when VOS | |
3157 | implements posix-976 (suggestion to support mapping to | |
3158 | infinity). Paul.Green@stratus.com 02-04-02. */ | |
3722f0dc PG |
3159 | { |
3160 | extern const double _double_constants[]; | |
f337b084 | 3161 | if (anv > DBL_MAX) |
fc241834 | 3162 | adouble = _double_constants[0]; /* double prec. inf. */ |
f337b084 | 3163 | else if (anv < -DBL_MAX) |
fc241834 | 3164 | adouble = _double_constants[0]; /* double prec. inf. */ |
f337b084 | 3165 | else adouble = (double) anv; |
3722f0dc | 3166 | } |
f337b084 | 3167 | #else /* __VOS__ */ |
baf3cf9c | 3168 | # if defined(VMS) && !defined(__IEEE_FP) |
f337b084 | 3169 | /* IEEE fp overflow shenanigans are unavailable on VAX and optional |
fc241834 RGS |
3170 | * on Alpha; fake it if we don't have them. |
3171 | */ | |
f337b084 | 3172 | if (anv > DBL_MAX) |
fc241834 | 3173 | adouble = DBL_MAX; |
f337b084 | 3174 | else if (anv < -DBL_MAX) |
fc241834 | 3175 | adouble = -DBL_MAX; |
f337b084 | 3176 | else adouble = (double)anv; |
baf3cf9c | 3177 | # else |
f337b084 | 3178 | adouble = (double)anv; |
baf3cf9c | 3179 | # endif |
f337b084 | 3180 | #endif /* __VOS__ */ |
1109a392 | 3181 | DO_BO_PACK_N(adouble, double); |
f337b084 | 3182 | PUSH_VAR(utf8, cur, adouble); |
a6ec74c1 JH |
3183 | } |
3184 | break; | |
fc241834 | 3185 | case 'F': { |
275663fa | 3186 | NV_bytes anv; |
1109a392 | 3187 | Zero(&anv, 1, NV); /* can be long double with unused bits */ |
92d41999 JH |
3188 | while (len-- > 0) { |
3189 | fromstr = NEXTFROM; | |
cd07c537 DM |
3190 | #ifdef __GNUC__ |
3191 | /* to work round a gcc/x86 bug; don't use SvNV */ | |
3192 | anv.nv = sv_2nv(fromstr); | |
3193 | #else | |
275663fa | 3194 | anv.nv = SvNV(fromstr); |
cd07c537 | 3195 | #endif |
1109a392 | 3196 | DO_BO_PACK_N(anv, NV); |
275663fa | 3197 | PUSH_BYTES(utf8, cur, anv.bytes, sizeof(anv.bytes)); |
92d41999 JH |
3198 | } |
3199 | break; | |
fc241834 | 3200 | } |
92d41999 | 3201 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
fc241834 | 3202 | case 'D': { |
275663fa | 3203 | ld_bytes aldouble; |
1109a392 MHM |
3204 | /* long doubles can have unused bits, which may be nonzero */ |
3205 | Zero(&aldouble, 1, long double); | |
92d41999 JH |
3206 | while (len-- > 0) { |
3207 | fromstr = NEXTFROM; | |
cd07c537 DM |
3208 | # ifdef __GNUC__ |
3209 | /* to work round a gcc/x86 bug; don't use SvNV */ | |
3210 | aldouble.ld = (long double)sv_2nv(fromstr); | |
3211 | # else | |
275663fa | 3212 | aldouble.ld = (long double)SvNV(fromstr); |
cd07c537 | 3213 | # endif |
1109a392 | 3214 | DO_BO_PACK_N(aldouble, long double); |
275663fa | 3215 | PUSH_BYTES(utf8, cur, aldouble.bytes, sizeof(aldouble.bytes)); |
92d41999 JH |
3216 | } |
3217 | break; | |
fc241834 | 3218 | } |
92d41999 | 3219 | #endif |
7212898e | 3220 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
068bd2e7 | 3221 | case 'n' | TYPE_IS_SHRIEKING: |
7212898e | 3222 | #endif |
a6ec74c1 JH |
3223 | case 'n': |
3224 | while (len-- > 0) { | |
f337b084 | 3225 | I16 ai16; |
a6ec74c1 | 3226 | fromstr = NEXTFROM; |
ef108786 | 3227 | ai16 = (I16)SvIV(fromstr); |
a6ec74c1 | 3228 | #ifdef HAS_HTONS |
ef108786 | 3229 | ai16 = PerlSock_htons(ai16); |
a6ec74c1 | 3230 | #endif |
f337b084 | 3231 | PUSH16(utf8, cur, &ai16); |
a6ec74c1 JH |
3232 | } |
3233 | break; | |
7212898e | 3234 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
068bd2e7 | 3235 | case 'v' | TYPE_IS_SHRIEKING: |
7212898e | 3236 | #endif |
a6ec74c1 JH |
3237 | case 'v': |
3238 | while (len-- > 0) { | |
f337b084 | 3239 | I16 ai16; |
a6ec74c1 | 3240 | fromstr = NEXTFROM; |
ef108786 | 3241 | ai16 = (I16)SvIV(fromstr); |
a6ec74c1 | 3242 | #ifdef HAS_HTOVS |
ef108786 | 3243 | ai16 = htovs(ai16); |
a6ec74c1 | 3244 | #endif |
f337b084 | 3245 | PUSH16(utf8, cur, &ai16); |
a6ec74c1 JH |
3246 | } |
3247 | break; | |
49704364 | 3248 | case 'S' | TYPE_IS_SHRIEKING: |
a6ec74c1 | 3249 | #if SHORTSIZE != SIZE16 |
fc241834 | 3250 | while (len-- > 0) { |
f337b084 | 3251 | unsigned short aushort; |
fc241834 RGS |
3252 | fromstr = NEXTFROM; |
3253 | aushort = SvUV(fromstr); | |
3254 | DO_BO_PACK(aushort, s); | |
f337b084 | 3255 | PUSH_VAR(utf8, cur, aushort); |
fc241834 | 3256 | } |
49704364 WL |
3257 | break; |
3258 | #else | |
3259 | /* Fall through! */ | |
a6ec74c1 | 3260 | #endif |
49704364 | 3261 | case 'S': |
fc241834 | 3262 | while (len-- > 0) { |
f337b084 | 3263 | U16 au16; |
fc241834 RGS |
3264 | fromstr = NEXTFROM; |
3265 | au16 = (U16)SvUV(fromstr); | |
3266 | DO_BO_PACK(au16, 16); | |
f337b084 | 3267 | PUSH16(utf8, cur, &au16); |
a6ec74c1 JH |
3268 | } |
3269 | break; | |
49704364 | 3270 | case 's' | TYPE_IS_SHRIEKING: |
a6ec74c1 | 3271 | #if SHORTSIZE != SIZE16 |
fc241834 | 3272 | while (len-- > 0) { |
f337b084 | 3273 | short ashort; |
fc241834 RGS |
3274 | fromstr = NEXTFROM; |
3275 | ashort = SvIV(fromstr); | |
3276 | DO_BO_PACK(ashort, s); | |
f337b084 | 3277 | PUSH_VAR(utf8, cur, ashort); |
a6ec74c1 | 3278 | } |
49704364 WL |
3279 | break; |
3280 | #else | |
3281 | /* Fall through! */ | |
a6ec74c1 | 3282 | #endif |
49704364 WL |
3283 | case 's': |
3284 | while (len-- > 0) { | |
f337b084 | 3285 | I16 ai16; |
49704364 | 3286 | fromstr = NEXTFROM; |
ef108786 MHM |
3287 | ai16 = (I16)SvIV(fromstr); |
3288 | DO_BO_PACK(ai16, 16); | |
f337b084 | 3289 | PUSH16(utf8, cur, &ai16); |
a6ec74c1 JH |
3290 | } |
3291 | break; | |
3292 | case 'I': | |
49704364 | 3293 | case 'I' | TYPE_IS_SHRIEKING: |
a6ec74c1 | 3294 | while (len-- > 0) { |
f337b084 | 3295 | unsigned int auint; |
a6ec74c1 JH |
3296 | fromstr = NEXTFROM; |
3297 | auint = SvUV(fromstr); | |
1109a392 | 3298 | DO_BO_PACK(auint, i); |
f337b084 | 3299 | PUSH_VAR(utf8, cur, auint); |
a6ec74c1 JH |
3300 | } |
3301 | break; | |
92d41999 JH |
3302 | case 'j': |
3303 | while (len-- > 0) { | |
f337b084 | 3304 | IV aiv; |
92d41999 JH |
3305 | fromstr = NEXTFROM; |
3306 | aiv = SvIV(fromstr); | |
1109a392 MHM |
3307 | #if IVSIZE == INTSIZE |
3308 | DO_BO_PACK(aiv, i); | |
3309 | #elif IVSIZE == LONGSIZE | |
3310 | DO_BO_PACK(aiv, l); | |
3311 | #elif defined(HAS_QUAD) && IVSIZE == U64SIZE | |
3312 | DO_BO_PACK(aiv, 64); | |
f337b084 TH |
3313 | #else |
3314 | Perl_croak(aTHX_ "'j' not supported on this platform"); | |
1109a392 | 3315 | #endif |
f337b084 | 3316 | PUSH_VAR(utf8, cur, aiv); |
92d41999 JH |
3317 | } |
3318 | break; | |
3319 | case 'J': | |
3320 | while (len-- > 0) { | |
f337b084 | 3321 | UV auv; |
92d41999 JH |
3322 | fromstr = NEXTFROM; |
3323 | auv = SvUV(fromstr); | |
1109a392 MHM |
3324 | #if UVSIZE == INTSIZE |
3325 | DO_BO_PACK(auv, i); | |
3326 | #elif UVSIZE == LONGSIZE | |
3327 | DO_BO_PACK(auv, l); | |
3328 | #elif defined(HAS_QUAD) && UVSIZE == U64SIZE | |
3329 | DO_BO_PACK(auv, 64); | |
f337b084 TH |
3330 | #else |
3331 | Perl_croak(aTHX_ "'J' not supported on this platform"); | |
1109a392 | 3332 | #endif |
f337b084 | 3333 | PUSH_VAR(utf8, cur, auv); |
92d41999 JH |
3334 | } |
3335 | break; | |
a6ec74c1 JH |
3336 | case 'w': |
3337 | while (len-- > 0) { | |
f337b084 | 3338 | NV anv; |
a6ec74c1 | 3339 | fromstr = NEXTFROM; |
15e9f109 | 3340 | anv = SvNV(fromstr); |
a6ec74c1 | 3341 | |
f337b084 TH |
3342 | if (anv < 0) { |
3343 | *cur = '\0'; | |
b162af07 | 3344 | SvCUR_set(cat, cur - start); |
49704364 | 3345 | Perl_croak(aTHX_ "Cannot compress negative numbers in pack"); |
f337b084 | 3346 | } |
a6ec74c1 | 3347 | |
196b62db NC |
3348 | /* 0xFFFFFFFFFFFFFFFF may cast to 18446744073709551616.0, |
3349 | which is == UV_MAX_P1. IOK is fine (instead of UV_only), as | |
3350 | any negative IVs will have already been got by the croak() | |
3351 | above. IOK is untrue for fractions, so we test them | |
3352 | against UV_MAX_P1. */ | |
f337b084 TH |
3353 | if (SvIOK(fromstr) || anv < UV_MAX_P1) { |
3354 | char buf[(sizeof(UV)*CHAR_BIT)/7+1]; | |
a6ec74c1 | 3355 | char *in = buf + sizeof(buf); |
196b62db | 3356 | UV auv = SvUV(fromstr); |
a6ec74c1 JH |
3357 | |
3358 | do { | |
eb160463 | 3359 | *--in = (char)((auv & 0x7f) | 0x80); |
a6ec74c1 JH |
3360 | auv >>= 7; |
3361 | } while (auv); | |
3362 | buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */ | |
f337b084 TH |
3363 | PUSH_GROWING_BYTES(utf8, cat, start, cur, |
3364 | in, (buf + sizeof(buf)) - in); | |
3365 | } else if (SvPOKp(fromstr)) | |
3366 | goto w_string; | |
a6ec74c1 | 3367 | else if (SvNOKp(fromstr)) { |
0258719b | 3368 | /* 10**NV_MAX_10_EXP is the largest power of 10 |
486ec47a | 3369 | so 10**(NV_MAX_10_EXP+1) is definitely unrepresentable |
0258719b NC |
3370 | given 10**(NV_MAX_10_EXP+1) == 128 ** x solve for x: |
3371 | x = (NV_MAX_10_EXP+1) * log (10) / log (128) | |
3372 | And with that many bytes only Inf can overflow. | |
8f8d40ab PG |
3373 | Some C compilers are strict about integral constant |
3374 | expressions so we conservatively divide by a slightly | |
3375 | smaller integer instead of multiplying by the exact | |
3376 | floating-point value. | |
0258719b NC |
3377 | */ |
3378 | #ifdef NV_MAX_10_EXP | |
f337b084 | 3379 | /* char buf[1 + (int)((NV_MAX_10_EXP + 1) * 0.47456)]; -- invalid C */ |
8f8d40ab | 3380 | char buf[1 + (int)((NV_MAX_10_EXP + 1) / 2)]; /* valid C */ |
0258719b | 3381 | #else |
f337b084 | 3382 | /* char buf[1 + (int)((308 + 1) * 0.47456)]; -- invalid C */ |
8f8d40ab | 3383 | char buf[1 + (int)((308 + 1) / 2)]; /* valid C */ |
0258719b | 3384 | #endif |
a6ec74c1 JH |
3385 | char *in = buf + sizeof(buf); |
3386 | ||
8b6e33c7 | 3387 | anv = Perl_floor(anv); |
a6ec74c1 | 3388 | do { |
8b6e33c7 | 3389 | const NV next = Perl_floor(anv / 128); |
a6ec74c1 | 3390 | if (in <= buf) /* this cannot happen ;-) */ |
49704364 | 3391 | Perl_croak(aTHX_ "Cannot compress integer in pack"); |
0258719b | 3392 | *--in = (unsigned char)(anv - (next * 128)) | 0x80; |
15e9f109 NC |
3393 | anv = next; |
3394 | } while (anv > 0); | |
a6ec74c1 | 3395 | buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */ |
f337b084 TH |
3396 | PUSH_GROWING_BYTES(utf8, cat, start, cur, |
3397 | in, (buf + sizeof(buf)) - in); | |
3398 | } else { | |
8b6e33c7 AL |
3399 | const char *from; |
3400 | char *result, *in; | |
735b914b JH |
3401 | SV *norm; |
3402 | STRLEN len; | |
3403 | bool done; | |
3404 | ||
f337b084 | 3405 | w_string: |
735b914b | 3406 | /* Copy string and check for compliance */ |
349d4f2f | 3407 | from = SvPV_const(fromstr, len); |
735b914b | 3408 | if ((norm = is_an_int(from, len)) == NULL) |
49704364 | 3409 | Perl_croak(aTHX_ "Can only compress unsigned integers in pack"); |
735b914b | 3410 | |
a02a5408 | 3411 | Newx(result, len, char); |
735b914b JH |
3412 | in = result + len; |
3413 | done = FALSE; | |
f337b084 | 3414 | while (!done) *--in = div128(norm, &done) | 0x80; |
735b914b | 3415 | result[len - 1] &= 0x7F; /* clear continue bit */ |
f337b084 TH |
3416 | PUSH_GROWING_BYTES(utf8, cat, start, cur, |
3417 | in, (result + len) - in); | |
735b914b JH |
3418 | Safefree(result); |
3419 | SvREFCNT_dec(norm); /* free norm */ | |
fc241834 | 3420 | } |
a6ec74c1 JH |
3421 | } |
3422 | break; | |
3423 | case 'i': | |
49704364 | 3424 | case 'i' | TYPE_IS_SHRIEKING: |
a6ec74c1 | 3425 | while (len-- > 0) { |
f337b084 | 3426 | int aint; |
a6ec74c1 JH |
3427 | fromstr = NEXTFROM; |
3428 | aint = SvIV(fromstr); | |
1109a392 | 3429 | DO_BO_PACK(aint, i); |
f337b084 | 3430 | PUSH_VAR(utf8, cur, aint); |
a6ec74c1 JH |
3431 | } |
3432 | break; | |
7212898e | 3433 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
068bd2e7 | 3434 | case 'N' | TYPE_IS_SHRIEKING: |
7212898e | 3435 | #endif |
a6ec74c1 JH |
3436 | case 'N': |
3437 | while (len-- > 0) { | |
f337b084 | 3438 | U32 au32; |
a6ec74c1 | 3439 | fromstr = NEXTFROM; |
ef108786 | 3440 | au32 = SvUV(fromstr); |
a6ec74c1 | 3441 | #ifdef HAS_HTONL |
ef108786 | 3442 | au32 = PerlSock_htonl(au32); |
a6ec74c1 | 3443 | #endif |
f337b084 | 3444 | PUSH32(utf8, cur, &au32); |
a6ec74c1 JH |
3445 | } |
3446 | break; | |
7212898e | 3447 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
068bd2e7 | 3448 | case 'V' | TYPE_IS_SHRIEKING: |
7212898e | 3449 | #endif |
a6ec74c1 JH |
3450 | case 'V': |
3451 | while (len-- > 0) { | |
f337b084 | 3452 | U32 au32; |
a6ec74c1 | 3453 | fromstr = NEXTFROM; |
ef108786 | 3454 | au32 = SvUV(fromstr); |
a6ec74c1 | 3455 | #ifdef HAS_HTOVL |
ef108786 | 3456 | au32 = htovl(au32); |
a6ec74c1 | 3457 | #endif |
f337b084 | 3458 | PUSH32(utf8, cur, &au32); |
a6ec74c1 JH |
3459 | } |
3460 | break; | |
49704364 | 3461 | case 'L' | TYPE_IS_SHRIEKING: |
a6ec74c1 | 3462 | #if LONGSIZE != SIZE32 |
fc241834 | 3463 | while (len-- > 0) { |
f337b084 | 3464 | unsigned long aulong; |
fc241834 RGS |
3465 | fromstr = NEXTFROM; |
3466 | aulong = SvUV(fromstr); | |
3467 | DO_BO_PACK(aulong, l); | |
f337b084 | 3468 | PUSH_VAR(utf8, cur, aulong); |
a6ec74c1 | 3469 | } |
49704364 WL |
3470 | break; |
3471 | #else | |
3472 | /* Fall though! */ | |
a6ec74c1 | 3473 | #endif |
49704364 | 3474 | case 'L': |
fc241834 | 3475 | while (len-- > 0) { |
f337b084 | 3476 | U32 au32; |
fc241834 RGS |
3477 | fromstr = NEXTFROM; |
3478 | au32 = SvUV(fromstr); | |
3479 | DO_BO_PACK(au32, 32); | |
f337b084 | 3480 | PUSH32(utf8, cur, &au32); |
a6ec74c1 JH |
3481 | } |
3482 | break; | |
49704364 | 3483 | case 'l' | TYPE_IS_SHRIEKING: |
a6ec74c1 | 3484 | #if LONGSIZE != SIZE32 |
fc241834 | 3485 | while (len-- > 0) { |
f337b084 | 3486 | long along; |
fc241834 RGS |
3487 | fromstr = NEXTFROM; |
3488 | along = SvIV(fromstr); | |
3489 | DO_BO_PACK(along, l); | |
f337b084 | 3490 | PUSH_VAR(utf8, cur, along); |
a6ec74c1 | 3491 | } |
49704364 WL |
3492 | break; |
3493 | #else | |
3494 | /* Fall though! */ | |
a6ec74c1 | 3495 | #endif |
49704364 WL |
3496 | case 'l': |
3497 | while (len-- > 0) { | |
f337b084 | 3498 | I32 ai32; |
49704364 | 3499 | fromstr = NEXTFROM; |
ef108786 MHM |
3500 | ai32 = SvIV(fromstr); |
3501 | DO_BO_PACK(ai32, 32); | |
f337b084 | 3502 | PUSH32(utf8, cur, &ai32); |
a6ec74c1 JH |
3503 | } |
3504 | break; | |
3505 | #ifdef HAS_QUAD | |
3506 | case 'Q': | |
3507 | while (len-- > 0) { | |
f337b084 | 3508 | Uquad_t auquad; |
a6ec74c1 | 3509 | fromstr = NEXTFROM; |
f337b084 | 3510 | auquad = (Uquad_t) SvUV(fromstr); |
1109a392 | 3511 | DO_BO_PACK(auquad, 64); |
f337b084 | 3512 | PUSH_VAR(utf8, cur, auquad); |
a6ec74c1 JH |
3513 | } |
3514 | break; | |
3515 | case 'q': | |
3516 | while (len-- > 0) { | |
f337b084 | 3517 | Quad_t aquad; |
a6ec74c1 JH |
3518 | fromstr = NEXTFROM; |
3519 | aquad = (Quad_t)SvIV(fromstr); | |
1109a392 | 3520 | DO_BO_PACK(aquad, 64); |
f337b084 | 3521 | PUSH_VAR(utf8, cur, aquad); |
a6ec74c1 JH |
3522 | } |
3523 | break; | |
f337b084 | 3524 | #endif /* HAS_QUAD */ |
a6ec74c1 JH |
3525 | case 'P': |
3526 | len = 1; /* assume SV is correct length */ | |
f337b084 | 3527 | GROWING(utf8, cat, start, cur, sizeof(char *)); |
49704364 | 3528 | /* Fall through! */ |
a6ec74c1 JH |
3529 | case 'p': |
3530 | while (len-- > 0) { | |
83003860 | 3531 | const char *aptr; |
f337b084 | 3532 | |
a6ec74c1 | 3533 | fromstr = NEXTFROM; |
28a4f200 TH |
3534 | SvGETMAGIC(fromstr); |
3535 | if (!SvOK(fromstr)) aptr = NULL; | |
a6ec74c1 | 3536 | else { |
a6ec74c1 JH |
3537 | /* XXX better yet, could spirit away the string to |
3538 | * a safe spot and hang on to it until the result | |
3539 | * of pack() (and all copies of the result) are | |
3540 | * gone. | |
3541 | */ | |
041457d9 | 3542 | if ((SvTEMP(fromstr) || (SvPADTMP(fromstr) && |
a2a5de95 NC |
3543 | !SvREADONLY(fromstr)))) { |
3544 | Perl_ck_warner(aTHX_ packWARN(WARN_PACK), | |
3545 | "Attempt to pack pointer to temporary value"); | |
a6ec74c1 JH |
3546 | } |
3547 | if (SvPOK(fromstr) || SvNIOK(fromstr)) | |
2596d9fe | 3548 | aptr = SvPV_nomg_const_nolen(fromstr); |
a6ec74c1 | 3549 | else |
2596d9fe | 3550 | aptr = SvPV_force_flags_nolen(fromstr, 0); |
a6ec74c1 | 3551 | } |
07409e01 | 3552 | DO_BO_PACK_PC(aptr); |
f337b084 | 3553 | PUSH_VAR(utf8, cur, aptr); |
a6ec74c1 JH |
3554 | } |
3555 | break; | |
fc241834 | 3556 | case 'u': { |
f7fe979e | 3557 | const char *aptr, *aend; |
fc241834 | 3558 | bool from_utf8; |
f337b084 | 3559 | |
a6ec74c1 | 3560 | fromstr = NEXTFROM; |
fc241834 RGS |
3561 | if (len <= 2) len = 45; |
3562 | else len = len / 3 * 3; | |
3563 | if (len >= 64) { | |
a2a5de95 NC |
3564 | Perl_ck_warner(aTHX_ packWARN(WARN_PACK), |
3565 | "Field too wide in 'u' format in pack"); | |
fc241834 RGS |
3566 | len = 63; |
3567 | } | |
83003860 | 3568 | aptr = SvPV_const(fromstr, fromlen); |
fc241834 RGS |
3569 | from_utf8 = DO_UTF8(fromstr); |
3570 | if (from_utf8) { | |
3571 | aend = aptr + fromlen; | |
3572 | fromlen = sv_len_utf8(fromstr); | |
3573 | } else aend = NULL; /* Unused, but keep compilers happy */ | |
3574 | GROWING(utf8, cat, start, cur, (fromlen+2) / 3 * 4 + (fromlen+len-1)/len * 2); | |
a6ec74c1 | 3575 | while (fromlen > 0) { |
fc241834 | 3576 | U8 *end; |
a6ec74c1 | 3577 | I32 todo; |
fc241834 | 3578 | U8 hunk[1+63/3*4+1]; |
a6ec74c1 | 3579 | |
eb160463 | 3580 | if ((I32)fromlen > len) |
a6ec74c1 JH |
3581 | todo = len; |
3582 | else | |
3583 | todo = fromlen; | |
fc241834 RGS |
3584 | if (from_utf8) { |
3585 | char buffer[64]; | |
3586 | if (!uni_to_bytes(aTHX_ &aptr, aend, buffer, todo, | |
3587 | 'u' | TYPE_IS_PACK)) { | |
3588 | *cur = '\0'; | |
b162af07 | 3589 | SvCUR_set(cat, cur - start); |
5637ef5b NC |
3590 | Perl_croak(aTHX_ "panic: string is shorter than advertised, " |
3591 | "aptr=%p, aend=%p, buffer=%p, todo=%ld", | |
3592 | aptr, aend, buffer, (long) todo); | |
fc241834 RGS |
3593 | } |
3594 | end = doencodes(hunk, buffer, todo); | |
3595 | } else { | |
3596 | end = doencodes(hunk, aptr, todo); | |
3597 | aptr += todo; | |
3598 | } | |
3599 | PUSH_BYTES(utf8, cur, hunk, end-hunk); | |
3600 | fromlen -= todo; | |
3601 | } | |
a6ec74c1 JH |
3602 | break; |
3603 | } | |
f337b084 TH |
3604 | } |
3605 | *cur = '\0'; | |
b162af07 | 3606 | SvCUR_set(cat, cur - start); |
f337b084 | 3607 | no_change: |
49704364 | 3608 | *symptr = lookahead; |
a6ec74c1 | 3609 | } |
49704364 | 3610 | return beglist; |
18529408 IZ |
3611 | } |
3612 | #undef NEXTFROM | |
3613 | ||
3614 | ||
3615 | PP(pp_pack) | |
3616 | { | |
97aff369 | 3617 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
18529408 IZ |
3618 | register SV *cat = TARG; |
3619 | STRLEN fromlen; | |
349d4f2f NC |
3620 | SV *pat_sv = *++MARK; |
3621 | register const char *pat = SvPV_const(pat_sv, fromlen); | |
f7fe979e | 3622 | register const char *patend = pat + fromlen; |
18529408 IZ |
3623 | |
3624 | MARK++; | |
76f68e9b | 3625 | sv_setpvs(cat, ""); |
f337b084 | 3626 | SvUTF8_off(cat); |
18529408 | 3627 | |
7accc089 | 3628 | packlist(cat, pat, patend, MARK, SP + 1); |
18529408 | 3629 | |
a6ec74c1 JH |
3630 | SvSETMAGIC(cat); |
3631 | SP = ORIGMARK; | |
3632 | PUSHs(cat); | |
3633 | RETURN; | |
3634 | } | |
a6ec74c1 | 3635 | |
73cb7263 NC |
3636 | /* |
3637 | * Local variables: | |
3638 | * c-indentation-style: bsd | |
3639 | * c-basic-offset: 4 | |
3640 | * indent-tabs-mode: t | |
3641 | * End: | |
3642 | * | |
37442d52 RGS |
3643 | * ex: set ts=8 sts=4 sw=4 noet: |
3644 | */ |