This source file includes following definitions.
- u8_mbtouc_unsafe_aux
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18 #include <config.h>
19
20
21 #include "unistr.h"
22
23 #if defined IN_LIBUNISTRING || HAVE_INLINE
24
25 int
26 u8_mbtouc_unsafe_aux (ucs4_t *puc, const uint8_t *s, size_t n)
27 {
28 uint8_t c = *s;
29
30 if (c >= 0xc2)
31 {
32 if (c < 0xe0)
33 {
34 if (n >= 2)
35 {
36 if ((s[1] ^ 0x80) < 0x40)
37 {
38 *puc = ((unsigned int) (c & 0x1f) << 6)
39 | (unsigned int) (s[1] ^ 0x80);
40 return 2;
41 }
42
43 }
44 else
45 {
46
47 *puc = 0xfffd;
48 return 1;
49 }
50 }
51 else if (c < 0xf0)
52 {
53 if (n >= 3)
54 {
55 if ((s[1] ^ 0x80) < 0x40)
56 {
57 if ((s[2] ^ 0x80) < 0x40)
58 {
59 if ((c >= 0xe1 || s[1] >= 0xa0)
60 && (c != 0xed || s[1] < 0xa0))
61 {
62 *puc = ((unsigned int) (c & 0x0f) << 12)
63 | ((unsigned int) (s[1] ^ 0x80) << 6)
64 | (unsigned int) (s[2] ^ 0x80);
65 return 3;
66 }
67
68 *puc = 0xfffd;
69 return 3;
70 }
71
72 *puc = 0xfffd;
73 return 2;
74 }
75
76 }
77 else
78 {
79
80 *puc = 0xfffd;
81 if (n == 1 || (s[1] ^ 0x80) >= 0x40)
82 return 1;
83 else
84 return 2;
85 }
86 }
87 else if (c < 0xf8)
88 {
89 if (n >= 4)
90 {
91 if ((s[1] ^ 0x80) < 0x40)
92 {
93 if ((s[2] ^ 0x80) < 0x40)
94 {
95 if ((s[3] ^ 0x80) < 0x40)
96 {
97 if ((c >= 0xf1 || s[1] >= 0x90)
98 && (c < 0xf4 || (c == 0xf4 && s[1] < 0x90))
99 )
100 {
101 *puc = ((unsigned int) (c & 0x07) << 18)
102 | ((unsigned int) (s[1] ^ 0x80) << 12)
103 | ((unsigned int) (s[2] ^ 0x80) << 6)
104 | (unsigned int) (s[3] ^ 0x80);
105 return 4;
106 }
107
108 *puc = 0xfffd;
109 return 4;
110 }
111
112 *puc = 0xfffd;
113 return 3;
114 }
115
116 *puc = 0xfffd;
117 return 2;
118 }
119
120 }
121 else
122 {
123
124 *puc = 0xfffd;
125 if (n == 1 || (s[1] ^ 0x80) >= 0x40)
126 return 1;
127 else if (n == 2 || (s[2] ^ 0x80) >= 0x40)
128 return 2;
129 else
130 return 3;
131 }
132 }
133 }
134
135 *puc = 0xfffd;
136 return 1;
137 }
138
139 #endif