regex.h File Reference

#include <wireshark.h>

Go to the source code of this file.

Macros
#define	WS_REGEX_CASELESS   (1U << 0)
#define	WS_REGEX_NEVER_UTF   (1U << 1)
#define	WS_REGEX_ANCHORED   (1U << 2)

Typedefs
typedef struct _ws_regex	ws_regex_t

Functions
WS_DLL_PUBLIC ws_regex_t *	ws_regex_compile (const char *patt, char **errmsg)
WS_DLL_PUBLIC ws_regex_t *	ws_regex_compile_ex (const char *patt, ssize_t size, char **errmsg, unsigned flags)
WS_DLL_PUBLIC bool	ws_regex_matches (const ws_regex_t *re, const char *subj)
WS_DLL_PUBLIC bool	ws_regex_matches_length (const ws_regex_t *re, const char *subj, ssize_t subj_length)
WS_DLL_PUBLIC bool	ws_regex_matches_pos (const ws_regex_t *re, const char *subj, ssize_t subj_length, size_t subj_offset, size_t pos_vect[2])
WS_DLL_PUBLIC void	ws_regex_free (ws_regex_t *re)
WS_DLL_PUBLIC const char *	ws_regex_pattern (const ws_regex_t *re)

Detailed Description

Wireshark - Network traffic analyzer By Gerald Combs geral.nosp@m.d@wi.nosp@m.resha.nosp@m.rk.o.nosp@m.rg Copyright 1998 Gerald Combs

SPDX-License-Identifier: GPL-2.0-or-later

Function Documentation

ws_regex_matches()

WS_DLL_PUBLIC bool ws_regex_matches	(	const ws_regex_t *	re,
		const char *	subj
	)

Matches a null-terminated subject string.

ws_regex_matches_length()

WS_DLL_PUBLIC bool ws_regex_matches_length	(	const ws_regex_t *	re,
		const char *	subj,
		ssize_t	subj_length
	)

Matches a subject string length in 8 bit code units.

ws_regex_matches_pos()

WS_DLL_PUBLIC bool ws_regex_matches_pos	(	const ws_regex_t *	re,
		const char *	subj,
		ssize_t	subj_length,
		size_t	subj_offset,
		size_t	pos_vect[2]
	)

Returns start and end position of the matched substring.

Note

Using a nonzero subj_offset produces different results than passing a pointer to the later offset as subj when the pattern begins with a lookbehind.

pos_vect[0] is first codepoint in the matched substring. pos_vect[1] is first codepoint past the matched substring. pos_vect[1] - pos_vect[0] is the matched substring length.