forked from osmocom/wireshark
64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
/** @file
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef __WSUTIL_REGEX_H__
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#define __WSUTIL_REGEX_H__
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#include <wireshark.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct _ws_regex;
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typedef struct _ws_regex ws_regex_t;
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WS_DLL_PUBLIC ws_regex_t *
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ws_regex_compile(const char *patt, char **errmsg);
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#define WS_REGEX_CASELESS (1U << 0)
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/* By default UTF-8 is off. This option also prevents it from being
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* turned on using a pattern option. */
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#define WS_REGEX_NEVER_UTF (1U << 1)
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WS_DLL_PUBLIC ws_regex_t *
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ws_regex_compile_ex(const char *patt, ssize_t size, char **errmsg, unsigned flags);
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/** Matches a null-terminated subject string. */
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WS_DLL_PUBLIC bool
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ws_regex_matches(const ws_regex_t *re, const char *subj);
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/** Matches a subject string length in 8 bit code units. */
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WS_DLL_PUBLIC bool
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ws_regex_matches_length(const ws_regex_t *re,
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const char *subj, ssize_t subj_length);
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/** Returns start and end position of the matched substring.
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*
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* pos_vect[0] is first codepoint in the matched substring.
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* pos_vect[1] is the next to last codepoint in the matched substring.
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* pos_vect[1] - pos_vect[0] is the matched substring length.
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*/
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WS_DLL_PUBLIC bool
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ws_regex_matches_pos(const ws_regex_t *re,
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const char *subj, ssize_t subj_length,
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size_t pos_vect[2]);
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WS_DLL_PUBLIC void
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ws_regex_free(ws_regex_t *re);
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WS_DLL_PUBLIC const char *
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ws_regex_pattern(const ws_regex_t *re);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __WSUTIL_REGEX_H__ */
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