forked from aniani/gmnisrv
74 lines
2.6 KiB
C
74 lines
2.6 KiB
C
|
/*
|
||
|
|
* Regular Expression Engine
|
||
|
|
*
|
||
|
|
* 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 LIBREGEXP_H
|
||
|
|
#define LIBREGEXP_H
|
||
|
|
#include <stddef.h>
|
||
|
|
#include <stdbool.h>
|
||
|
|
|
||
|
|
#define LRE_FLAG_GLOBAL (1 << 0)
|
||
|
|
#define LRE_FLAG_IGNORECASE (1 << 1)
|
||
|
|
#define LRE_FLAG_MULTILINE (1 << 2)
|
||
|
|
#define LRE_FLAG_DOTALL (1 << 3)
|
||
|
|
#define LRE_FLAG_UTF16 (1 << 4)
|
||
|
|
#define LRE_FLAG_STICKY (1 << 5)
|
||
|
|
|
||
|
|
#define LRE_FLAG_NAMED_GROUPS (1 << 7) /* named groups are present in the regexp */
|
||
|
|
|
||
|
|
uint8_t *lre_compile(int *plen, char *error_msg, int error_msg_size,
|
||
|
|
const char *buf, size_t buf_len, int re_flags, void *opaque);
|
||
|
|
int lre_get_capture_count(const uint8_t *bc_buf);
|
||
|
|
int lre_get_flags(const uint8_t *bc_buf);
|
||
|
|
const char *lre_get_groupnames(const uint8_t *bc_buf);
|
||
|
|
int lre_exec(uint8_t **capture,
|
||
|
|
const uint8_t *bc_buf, const uint8_t *cbuf, int cindex, int clen,
|
||
|
|
int cbuf_type, void *opaque);
|
||
|
|
|
||
|
|
int lre_parse_escape(const uint8_t **pp, int allow_utf16);
|
||
|
|
bool lre_is_space(int c);
|
||
|
|
|
||
|
|
/* JS identifier test */
|
||
|
|
extern uint32_t const lre_id_start_table_ascii[4];
|
||
|
|
extern uint32_t const lre_id_continue_table_ascii[4];
|
||
|
|
|
||
|
|
static inline int lre_js_is_ident_first(int c)
|
||
|
|
{
|
||
|
|
if ((uint32_t)c < 128) {
|
||
|
|
return (lre_id_start_table_ascii[c >> 5] >> (c & 31)) & 1;
|
||
|
|
} else {
|
||
|
|
return !lre_is_space(c);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int lre_js_is_ident_next(int c)
|
||
|
|
{
|
||
|
|
if ((uint32_t)c < 128) {
|
||
|
|
return (lre_id_continue_table_ascii[c >> 5] >> (c & 31)) & 1;
|
||
|
|
} else {
|
||
|
|
/* ZWNJ and ZWJ are accepted in identifiers */
|
||
|
|
return !lre_is_space(c) || c == 0x200C || c == 0x200D;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* LIBREGEXP_H */
|