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apr_fnmatch.h

/*
 * Copyright (c) 1992, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)fnmatch.h	8.1 (Berkeley) 6/2/93
 */

/* This file has been modified by the Apache Software Foundation. */
#ifndef	_APR_FNMATCH_H_
#define	_APR_FNMATCH_H_

/**
 * @file apr_fnmatch.h
 * @brief APR FNMatch Functions
 */

#include "apr_errno.h"
#include "apr_tables.h"

#ifdef __cplusplus
extern "C" {
#endif

/**
 * @defgroup apr_fnmatch Filename Matching Functions
 * @ingroup APR 
 * @{
 */

#define APR_FNM_NOMATCH 1 /**< Match failed. */
 
#define APR_FNM_NOESCAPE 0x01 /**< Disable backslash escaping. */
#define APR_FNM_PATHNAME 0x02 /**< Slash must be matched by slash. */
#define APR_FNM_PERIOD 0x04 /**< Period must be matched by period. */
#define APR_FNM_CASE_BLIND 0x08 /**< Compare characters case-insensitively. */

/**
 * Try to match the string to the given pattern, return APR_SUCCESS if
 * match, else return APR_FNM_NOMATCH. Note that there is no such thing as
 * an illegal pattern.
 *
 * With all flags unset, a pattern is interpreted as such:
 *
 * PATTERN: Backslash followed by any character, including another
 * backslash. 
 * MATCHES: That character exactly.
 * 
 * 
 * PATTERN: ? 
 * MATCHES: Any single character.
 * 
 * 
 * 
 * PATTERN: * 
 * MATCHES: Any sequence of zero or more characters. (Note that multiple
 * *s in a row are equivalent to one.)
 * 
 * PATTERN: Any character other than \?*[ or a \ at the end of the pattern 
 * MATCHES: That character exactly. (Case sensitive.)
 * 
 * PATTERN: [ followed by a class description followed by ] 
 * MATCHES: A single character described by the class description.
 * (Never matches, if the class description reaches until the
 * end of the string without a ].) If the first character of
 * the class description is ^ or !, the sense of the description
 * is reversed. The rest of the class description is a list of
 * single characters or pairs of characters separated by -. Any
 * of those characters can have a backslash in front of them,
 * which is ignored; this lets you use the characters ] and -
 * in the character class, as well as ^ and ! at the
 * beginning. The pattern matches a single character if it
 * is one of the listed characters or falls into one of the
 * listed ranges (inclusive, case sensitive). Ranges with
 * the first character larger than the second are legal but
 * never match. Edge cases: [] never matches, and [^] and [!]
 * always match without consuming a character.
 * 
 * Note that these patterns attempt to match the entire string, not
 * just find a substring matching the pattern.
 *
 * @param pattern The pattern to match to
 * @param strings The string we are trying to match
 * @param flags flags to use in the match. Bitwise OR of:
 * <pre>
 * APR_FNM_NOESCAPE Disable backslash escaping
 * APR_FNM_PATHNAME Slash must be matched by slash
 * APR_FNM_PERIOD Period must be matched by period
 * APR_FNM_CASE_BLIND Compare characters case-insensitively.
 * </pre>
 */

APR_DECLARE(apr_status_t) apr_fnmatch(const char *pattern, 
                                      const char *strings, int flags);

/**
 * Determine if the given pattern is a regular expression.
 * @param pattern The pattern to search for glob characters.
 * @return non-zero if pattern has any glob characters in it
 */
APR_DECLARE(int) apr_fnmatch_test(const char *pattern);

/**
 * Find all files that match a specified pattern in a directory.
 * @param dir_pattern The pattern to use for finding files, appended
 * to the search directory.  The pattern is anything following the
 * final forward or backward slash in the parameter.  If no slash
 * is found, the current directory is searched.
 * @param result Array to use when storing the results
 * @param p The pool to use.
 * @return APR_SUCCESS if no processing errors occurred, APR error
 * code otherwise
 * @remark The returned array may be empty even if APR_SUCCESS was
 * returned.
 */
APR_DECLARE(apr_status_t) apr_match_glob(const char *dir_pattern, 
                                         apr_array_header_t **result,
                                         apr_pool_t *p);

/** @} */

#ifdef __cplusplus
}
#endif

#endif /* !_APR_FNMATCH_H_ */

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