/*
 * Copyright © 2003-2004 E. Will et al.
 * Copyright © 2005-2006 Atheme Development Group
 * Rights to this code are as defined in doc/pod/license.pod.
 *
 * String matching
 *
 * $Id: match.h,v 1.3 2007/08/28 17:08:06 pippijn Exp $
 */

#ifndef _MATCH_H
#define _MATCH_H

/* cidr.c */
E int match_ips (char const * const mask, char const * const address);
E int match_cidr (char const * const mask, char const * const address);

/* match.c */
#define MATCH_RFC1459   0
#define MATCH_ASCII     1

E int match_mapping;

#define IsLower(c)  ((unsigned char)(c) > 0x5f)
#define IsUpper(c)  ((unsigned char)(c) < 0x60)

#define C_ALPHA 0x00000001
#define C_DIGIT 0x00000002

E const unsigned int charattrs[];

#define IsAlpha(c)      (charattrs[(unsigned char) (c)] & C_ALPHA)
#define IsDigit(c)      (charattrs[(unsigned char) (c)] & C_DIGIT)
#define IsAlphaNum(c)   (IsAlpha((c)) || IsDigit((c)))
#define IsNon(c)        (!IsAlphaNum((c)))

E const unsigned char ToLowerTab[];
E const unsigned char ToUpperTab[];

void set_match_mapping (int);

E int ToLower (int);
E int ToUpper (int);

E int match (char const * const mask, char const * const name);
E char *collapse (char *);

/* regex_create() flags */
#define AREGEX_ICASE	1	/* case insensitive */

E regex_t *regex_create (char *pattern, int flags);
E char *regex_extract (char *pattern, char **pend, int *pflags);
E bool regex_match (regex_t * preg, char *string);
E bool regex_destroy (regex_t * preg);

#endif