Deleted Added
sdiff udiff text old ( 122283 ) new ( 128004 )
full compact
big5.c (122283) big5.c (128004)
1/*-
1/*-
2 * Copyright (c) 2002, 2003 Tim J. Robbins. All rights reserved.
2 * Copyright (c) 2002-2004 Tim J. Robbins. All rights reserved.
3 * Copyright (c) 1993
4 * The Regents of the University of California. All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * Paul Borman at Krystal Technologies.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions

--- 22 unchanged lines hidden (view full) ---

33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 */
37
38#if defined(LIBC_SCCS) && !defined(lint)
39static char sccsid[] = "@(#)big5.c 8.1 (Berkeley) 6/4/93";
40#endif /* LIBC_SCCS and not lint */
3 * Copyright (c) 1993
4 * The Regents of the University of California. All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * Paul Borman at Krystal Technologies.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions

--- 22 unchanged lines hidden (view full) ---

33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 */
37
38#if defined(LIBC_SCCS) && !defined(lint)
39static char sccsid[] = "@(#)big5.c 8.1 (Berkeley) 6/4/93";
40#endif /* LIBC_SCCS and not lint */
41#include <sys/cdefs.h>
42__FBSDID("$FreeBSD: head/lib/libc/locale/big5.c 122283 2003-11-08 02:58:37Z tjr $");
41#include <sys/param.h>
42__FBSDID("$FreeBSD: head/lib/libc/locale/big5.c 128004 2004-04-07 10:48:19Z tjr $");
43
43
44#include <sys/types.h>
45#include <runetype.h>
46#include <stdlib.h>
44#include <runetype.h>
45#include <stdlib.h>
46#include <string.h>
47#include <wchar.h>
48
49extern size_t (*__mbrtowc)(wchar_t * __restrict, const char * __restrict,
50 size_t, mbstate_t * __restrict);
47#include <wchar.h>
48
49extern size_t (*__mbrtowc)(wchar_t * __restrict, const char * __restrict,
50 size_t, mbstate_t * __restrict);
51extern int (*__mbsinit)(const mbstate_t *);
51extern size_t (*__wcrtomb)(char * __restrict, wchar_t, mbstate_t * __restrict);
52
53int _BIG5_init(_RuneLocale *);
54size_t _BIG5_mbrtowc(wchar_t * __restrict, const char * __restrict, size_t,
55 mbstate_t * __restrict);
52extern size_t (*__wcrtomb)(char * __restrict, wchar_t, mbstate_t * __restrict);
53
54int _BIG5_init(_RuneLocale *);
55size_t _BIG5_mbrtowc(wchar_t * __restrict, const char * __restrict, size_t,
56 mbstate_t * __restrict);
57int _BIG5_mbsinit(const mbstate_t *);
56size_t _BIG5_wcrtomb(char * __restrict, wchar_t, mbstate_t * __restrict);
57
58size_t _BIG5_wcrtomb(char * __restrict, wchar_t, mbstate_t * __restrict);
59
60typedef struct {
61 int count;
62 u_char bytes[2];
63} _BIG5State;
64
58int
59_BIG5_init(_RuneLocale *rl)
60{
61
62 __mbrtowc = _BIG5_mbrtowc;
63 __wcrtomb = _BIG5_wcrtomb;
65int
66_BIG5_init(_RuneLocale *rl)
67{
68
69 __mbrtowc = _BIG5_mbrtowc;
70 __wcrtomb = _BIG5_wcrtomb;
71 __mbsinit = _BIG5_mbsinit;
64 _CurrentRuneLocale = rl;
65 __mb_cur_max = 2;
66 return (0);
67}
68
72 _CurrentRuneLocale = rl;
73 __mb_cur_max = 2;
74 return (0);
75}
76
77int
78_BIG5_mbsinit(const mbstate_t *ps)
79{
80
81 return (ps == NULL || ((_BIG5State *)ps)->count == 0);
82}
83
69static __inline int
70_big5_check(u_int c)
71{
72
73 c &= 0xff;
74 return ((c >= 0xa1 && c <= 0xfe) ? 2 : 1);
75}
76
77size_t
78_BIG5_mbrtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n,
84static __inline int
85_big5_check(u_int c)
86{
87
88 c &= 0xff;
89 return ((c >= 0xa1 && c <= 0xfe) ? 2 : 1);
90}
91
92size_t
93_BIG5_mbrtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n,
79 mbstate_t * __restrict ps __unused)
94 mbstate_t * __restrict ps)
80{
95{
96 _BIG5State *bs;
81 wchar_t wc;
97 wchar_t wc;
82 int i, len;
98 int i, len, ocount;
99 size_t ncopy;
83
100
84 if (s == NULL)
85 /* Reset to initial shift state (no-op) */
86 return (0);
101 bs = (_BIG5State *)ps;
102
103 if (s == NULL) {
104 s = "";
105 n = 1;
106 pwc = NULL;
107 }
108
109 ncopy = MIN(MIN(n, MB_CUR_MAX), sizeof(bs->bytes) - bs->count);
110 memcpy(bs->bytes + bs->count, s, ncopy);
111 ocount = bs->count;
112 bs->count += ncopy;
113 s = (char *)bs->bytes;
114 n = bs->count;
115
87 if (n == 0 || (size_t)(len = _big5_check(*s)) > n)
88 /* Incomplete multibyte sequence */
89 return ((size_t)-2);
90 wc = 0;
91 i = len;
92 while (i-- > 0)
93 wc = (wc << 8) | (unsigned char)*s++;
94 if (pwc != NULL)
95 *pwc = wc;
116 if (n == 0 || (size_t)(len = _big5_check(*s)) > n)
117 /* Incomplete multibyte sequence */
118 return ((size_t)-2);
119 wc = 0;
120 i = len;
121 while (i-- > 0)
122 wc = (wc << 8) | (unsigned char)*s++;
123 if (pwc != NULL)
124 *pwc = wc;
96 return (wc == L'\0' ? 0 : len);
125 bs->count = 0;
126 return (wc == L'\0' ? 0 : len - ocount);
97}
98
99size_t
100_BIG5_wcrtomb(char * __restrict s, wchar_t wc,
101 mbstate_t * __restrict ps __unused)
102{
103
104 if (s == NULL)
105 /* Reset to initial shift state (no-op) */
106 return (1);
107 if (wc & 0x8000) {
108 *s++ = (wc >> 8) & 0xff;
109 *s = wc & 0xff;
110 return (2);
111 }
112 *s = wc & 0xff;
113 return (1);
114}
127}
128
129size_t
130_BIG5_wcrtomb(char * __restrict s, wchar_t wc,
131 mbstate_t * __restrict ps __unused)
132{
133
134 if (s == NULL)
135 /* Reset to initial shift state (no-op) */
136 return (1);
137 if (wc & 0x8000) {
138 *s++ = (wc >> 8) & 0xff;
139 *s = wc & 0xff;
140 return (2);
141 }
142 *s = wc & 0xff;
143 return (1);
144}