1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
/*
* Unicode utilities
*
* Copyright (c) 2017-2018 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef LIBUNICODE_H
#define LIBUNICODE_H
#include <stdint.h>
/* define it to include all the unicode tables (40KB larger) */
#define CONFIG_ALL_UNICODE
#define LRE_CC_RES_LEN_MAX 3
/* char ranges */
typedef struct {
int len; /* in points, always even */
int size;
uint32_t *points; /* points sorted by increasing value */
void *mem_opaque;
void *(*realloc_func)(void *opaque, void *ptr, size_t size);
} CharRange;
typedef enum {
CR_OP_UNION,
CR_OP_INTER,
CR_OP_XOR,
} CharRangeOpEnum;
void cr_init(CharRange *cr, void *mem_opaque, void *(*realloc_func)(void *opaque, void *ptr, size_t size));
void cr_free(CharRange *cr);
int cr_realloc(CharRange *cr, int size);
int cr_copy(CharRange *cr, const CharRange *cr1);
static inline int cr_add_point(CharRange *cr, uint32_t v)
{
if (cr->len >= cr->size) {
if (cr_realloc(cr, cr->len + 1))
return -1;
}
cr->points[cr->len++] = v;
return 0;
}
static inline int cr_add_interval(CharRange *cr, uint32_t c1, uint32_t c2)
{
if ((cr->len + 2) > cr->size) {
if (cr_realloc(cr, cr->len + 2))
return -1;
}
cr->points[cr->len++] = c1;
cr->points[cr->len++] = c2;
return 0;
}
int cr_union1(CharRange *cr, const uint32_t *b_pt, int b_len);
static inline int cr_union_interval(CharRange *cr, uint32_t c1, uint32_t c2)
{
uint32_t b_pt[2];
b_pt[0] = c1;
b_pt[1] = c2 + 1;
return cr_union1(cr, b_pt, 2);
}
int cr_op(CharRange *cr, const uint32_t *a_pt, int a_len,
const uint32_t *b_pt, int b_len, int op);
int cr_invert(CharRange *cr);
int cr_regexp_canonicalize(CharRange *cr, int is_unicode);
typedef enum {
UNICODE_NFC,
UNICODE_NFD,
UNICODE_NFKC,
UNICODE_NFKD,
} UnicodeNormalizationEnum;
int unicode_normalize(uint32_t **pdst, const uint32_t *src, int src_len,
UnicodeNormalizationEnum n_type,
void *opaque, void *(*realloc_func)(void *opaque, void *ptr, size_t size));
/* Unicode character range functions */
int unicode_script(CharRange *cr, const char *script_name, int is_ext);
int unicode_general_category(CharRange *cr, const char *gc_name);
int unicode_prop(CharRange *cr, const char *prop_name);
int lre_case_conv(uint32_t *res, uint32_t c, int conv_type);
int lre_canonicalize(uint32_t c, int is_unicode);
/* Code point type categories */
enum {
UNICODE_C_SPACE = (1 << 0),
UNICODE_C_DIGIT = (1 << 1),
UNICODE_C_UPPER = (1 << 2),
UNICODE_C_LOWER = (1 << 3),
UNICODE_C_UNDER = (1 << 4),
UNICODE_C_DOLLAR = (1 << 5),
UNICODE_C_XDIGIT = (1 << 6),
};
extern uint8_t const lre_ctype_bits[256];
/* zero or non-zero return value */
int lre_is_cased(uint32_t c);
int lre_is_case_ignorable(uint32_t c);
int lre_is_id_start(uint32_t c);
int lre_is_id_continue(uint32_t c);
static inline int lre_is_space_byte(uint8_t c) {
return lre_ctype_bits[c] & UNICODE_C_SPACE;
}
static inline int lre_is_id_start_byte(uint8_t c) {
return lre_ctype_bits[c] & (UNICODE_C_UPPER | UNICODE_C_LOWER |
UNICODE_C_UNDER | UNICODE_C_DOLLAR);
}
static inline int lre_is_id_continue_byte(uint8_t c) {
return lre_ctype_bits[c] & (UNICODE_C_UPPER | UNICODE_C_LOWER |
UNICODE_C_UNDER | UNICODE_C_DOLLAR |
UNICODE_C_DIGIT);
}
int lre_is_space_non_ascii(uint32_t c);
static inline int lre_is_space(uint32_t c) {
if (c < 256)
return lre_is_space_byte(c);
else
return lre_is_space_non_ascii(c);
}
static inline int lre_js_is_ident_first(uint32_t c) {
if (c < 128) {
return lre_is_id_start_byte(c);
} else {
#ifdef CONFIG_ALL_UNICODE
return lre_is_id_start(c);
#else
return !lre_is_space_non_ascii(c);
#endif
}
}
static inline int lre_js_is_ident_next(uint32_t c) {
if (c < 128) {
return lre_is_id_continue_byte(c);
} else {
/* ZWNJ and ZWJ are accepted in identifiers */
if (c >= 0x200C && c <= 0x200D)
return TRUE;
#ifdef CONFIG_ALL_UNICODE
return lre_is_id_continue(c);
#else
return !lre_is_space_non_ascii(c);
#endif
}
}
#endif /* LIBUNICODE_H */
|
