1 files changed, 63 insertions, 0 deletions
diff --git a/wsutil/regex.h b/wsutil/regex.h
new file mode 100644
index 00000000..0484eab3
--- /dev/null
+++ b/wsutil/regex.h
@@ -0,0 +1,63 @@
+/** @file
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#ifndef __WSUTIL_REGEX_H__
+#define __WSUTIL_REGEX_H__
+
+#include <wireshark.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct _ws_regex;
+typedef struct _ws_regex ws_regex_t;
+
+WS_DLL_PUBLIC ws_regex_t *
+ws_regex_compile(const char *patt, char **errmsg);
+
+#define WS_REGEX_CASELESS       (1U << 0)
+/* By default UTF-8 is off. This option also prevents it from being
+ * turned on using a pattern option. */
+#define WS_REGEX_NEVER_UTF      (1U << 1)
+
+WS_DLL_PUBLIC ws_regex_t *
+ws_regex_compile_ex(const char *patt, ssize_t size, char **errmsg, unsigned flags);
+
+/** Matches a null-terminated subject string. */
+WS_DLL_PUBLIC bool
+ws_regex_matches(const ws_regex_t *re, const char *subj);
+
+/** Matches a subject string length in 8 bit code units. */
+WS_DLL_PUBLIC bool
+ws_regex_matches_length(const ws_regex_t *re,
+                        const char *subj, ssize_t subj_length);
+
+/** Returns start and end position of the matched substring.
+ *
+ *  pos_vect[0] is first codepoint in the matched substring.
+ *  pos_vect[1] is the next to last codepoint in the matched substring.
+ *  pos_vect[1] - pos_vect[0] is the matched substring length.
+ */
+WS_DLL_PUBLIC bool
+ws_regex_matches_pos(const ws_regex_t *re,
+                        const char *subj, ssize_t subj_length,
+                        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);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __WSUTIL_REGEX_H__ */