--- /dev/null
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ *
+ * Copyright © 2006 Pierre Habouzit
+ */
+/*
+ * This file is part of mutt-ng, see http://www.muttng.org/.
+ * It's licensed under the GNU General Public License,
+ * please see the file GPL in the top level source directory.
+ */
+
+/*
+ * this is an internal abstraction layer for regular expressions
+ */
+
+#ifndef _LIB_RX_H
+#define _LIB_RX_H
+
+#include <sys/types.h>
+#include <regex.h>
+
+#include "../lib/list.h"
+
+/* this is a non-standard option supported by Solaris 2.5.x which allows
+ * patterns of the form \<...\>
+ */
+#ifndef REG_WORDS
+#define REG_WORDS 0
+#endif
+
+typedef struct rx_t {
+ char *pattern; /* printable version */
+ regex_t *rx; /* compiled expression */
+ int not; /* do not match */
+} rx_t;
+
+rx_t* rx_compile (const char*, int);
+void rx_delete(rx_t **);
+
+/* for handling lists */
+int rx_list_match(list2_t*, const char*); /* match all items list agains string */
+int rx_lookup(list2_t*, const char*); /* lookup pattern */
+
+#define REGCOMP(X,Y,Z) regcomp(X, Y, REG_WORDS|REG_EXTENDED|(Z))
+#define REGEXEC(X,Y) regexec(X, Y, 0, NULL, 0)
+
+#endif /* !_LIB_RX_H */