libregexp.h (2737B)
1 /* 2 * Regular Expression Engine 3 * 4 * Copyright (c) 2017-2018 Fabrice Bellard 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to deal 8 * in the Software without restriction, including without limitation the rights 9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 10 * copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 22 * THE SOFTWARE. 23 */ 24 #ifndef LIBREGEXP_H 25 #define LIBREGEXP_H 26 27 #include <stddef.h> 28 #include <stdint.h> 29 30 #define LRE_FLAG_GLOBAL (1 << 0) 31 #define LRE_FLAG_IGNORECASE (1 << 1) 32 #define LRE_FLAG_MULTILINE (1 << 2) 33 #define LRE_FLAG_DOTALL (1 << 3) 34 #define LRE_FLAG_UNICODE (1 << 4) 35 #define LRE_FLAG_STICKY (1 << 5) 36 #define LRE_FLAG_INDICES (1 << 6) /* Unused by libregexp, just recorded. */ 37 #define LRE_FLAG_NAMED_GROUPS (1 << 7) /* named groups are present in the regexp */ 38 #define LRE_FLAG_UNICODE_SETS (1 << 8) 39 40 #define LRE_RET_MEMORY_ERROR (-1) 41 #define LRE_RET_TIMEOUT (-2) 42 43 /* trailer length after the group name including the trailing '\0' */ 44 #define LRE_GROUP_NAME_TRAILER_LEN 2 45 46 uint8_t *lre_compile(int *plen, char *error_msg, int error_msg_size, 47 const char *buf, size_t buf_len, int re_flags, 48 void *opaque); 49 int lre_get_alloc_count(const uint8_t *bc_buf); 50 int lre_get_capture_count(const uint8_t *bc_buf); 51 int lre_get_flags(const uint8_t *bc_buf); 52 const char *lre_get_groupnames(const uint8_t *bc_buf); 53 int lre_exec(uint8_t **capture, 54 const uint8_t *bc_buf, const uint8_t *cbuf, int cindex, int clen, 55 int cbuf_type, void *opaque); 56 57 int lre_parse_escape(const uint8_t **pp, int allow_utf16); 58 59 /* must be provided by the user, return non zero if overflow */ 60 int lre_check_stack_overflow(void *opaque, size_t alloca_size); 61 /* must be provided by the user, return non zero if time out */ 62 int lre_check_timeout(void *opaque); 63 void *lre_realloc(void *opaque, void *ptr, size_t size); 64 65 #endif /* LIBREGEXP_H */