/* ====================================================================
 * The Apache Software License, Version 1.1
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 * Copyright (c) 2000-2001 The Apache Software Foundation.  All rights
 * reserved.
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 * modification, are permitted provided that the following conditions
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 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 * Portions of this software are based upon public domain software
 * originally written at the National Center for Supercomputing Applications,
 * University of Illinois, Urbana-Champaign.
 */

#ifndef APACHE_UTIL_DATE_H
#define APACHE_UTIL_DATE_H

#ifdef __cplusplus
extern "C" {
#endif

/**
 * @package Apache date routines
 */

/*
 * util_date.h: prototypes for date parsing utility routines
 */

#include "apr_time.h"

#define BAD_DATE (apr_time_t)0

/**
 * Compare a string to a mask
 * @param data The string to compare
 * @mask Mask characters (arbitrary maximum is 256 characters, just in case):
 * <PRE>
 *   @ - uppercase letter
 *   $ - lowercase letter
 *   & - hex digit
 *   # - digit
 *   ~ - digit or space
 *   * - swallow remaining characters
 *  <x> - exact match for any other character
 * </PRE>
 * @return 1 if the string matches, 0 otherwise
 * @deffunc int ap_checkmask(const char *data, const char *mask)
 */
AP_DECLARE(int) ap_checkmask(const char *data, const char *mask);

/**
 * Parses an HTTP date in one of three standard forms:
 * <PRE>
 *     Sun, 06 Nov 1994 08:49:37 GMT  ; RFC 822, updated by RFC 1123
 *     Sunday, 06-Nov-94 08:49:37 GMT ; RFC 850, obsoleted by RFC 1036
 *     Sun Nov  6 08:49:37 1994       ; ANSI C's asctime() format
 * </PRE>
 * @param date The date in one of the three formats above
 * @return the apr_time_t number of microseconds since 1 Jan 1970 GMT, or
 *         0 if this would be out of range or if the date is invalid.
 * @deffunc apr_time_t ap_parseHTTPdate(const char *date)
 */
AP_DECLARE(apr_time_t) ap_parseHTTPdate(const char *date);

#ifdef __cplusplus
}
#endif

#endif	/* !APACHE_UTIL_DATE_H */