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/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef APR_STRMATCH_H
#define APR_STRMATCH_H
/**
* @file apr_strmatch.h
* @brief APR-UTIL string matching routines
*/
#include "apu.h"
#include "apr_pools.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @defgroup APR_Util_StrMatch String matching routines
* @ingroup APR_Util
* @{
*/
/** @see apr_strmatch_pattern */
typedef struct apr_strmatch_pattern apr_strmatch_pattern;
/**
* Precompiled search pattern
*/
struct apr_strmatch_pattern {
/** Function called to compare */
const char *(*compare)(const apr_strmatch_pattern *this_pattern,
const char *s, apr_size_t slen);
const char *pattern; /**< Current pattern */
apr_size_t length; /**< Current length */
void *context; /**< hook to add precomputed metadata */
};
#if defined(DOXYGEN)
/**
* Search for a precompiled pattern within a string
* @param pattern The pattern
* @param s The string in which to search for the pattern
* @param slen The length of s (excluding null terminator)
* @return A pointer to the first instance of the pattern in s, or
* NULL if not found
*/
APU_DECLARE(const char *) apr_strmatch(const apr_strmatch_pattern *pattern,
const char *s, apr_size_t slen);
#else
#define apr_strmatch(pattern, s, slen) (*((pattern)->compare))((pattern), (s), (slen))
#endif
/**
* Precompile a pattern for matching using the Boyer-Moore-Horspool algorithm
* @param p The pool from which to allocate the pattern
* @param s The pattern string
* @param case_sensitive Whether the matching should be case-sensitive
* @return a pointer to the compiled pattern, or NULL if compilation fails
*/
APU_DECLARE(const apr_strmatch_pattern *) apr_strmatch_precompile(apr_pool_t *p, const char *s, int case_sensitive);
/** @} */
#ifdef __cplusplus
}
#endif
#endif /* !APR_STRMATCH_H */
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