1 /* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements. See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License. You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #ifndef APR_STRMATCH_H
18 #define APR_STRMATCH_H
20 * @file apr_strmatch.h
21 * @brief APR-UTIL string matching routines
25 #include "apr_pools.h"
32 * @defgroup APR_Util_StrMatch String matching routines
37 /** @see apr_strmatch_pattern */
38 typedef struct apr_strmatch_pattern apr_strmatch_pattern;
41 * Precompiled search pattern
43 struct apr_strmatch_pattern {
44 /** Function called to compare */
45 const char *(*compare)(const apr_strmatch_pattern *this_pattern,
46 const char *s, apr_size_t slen);
47 const char *pattern; /**< Current pattern */
48 apr_size_t length; /**< Current length */
49 void *context; /**< hook to add precomputed metadata */
54 * Search for a precompiled pattern within a string
55 * @param pattern The pattern
56 * @param s The string in which to search for the pattern
57 * @param slen The length of s (excluding null terminator)
58 * @return A pointer to the first instance of the pattern in s, or
61 APU_DECLARE(const char *) apr_strmatch(const apr_strmatch_pattern *pattern,
62 const char *s, apr_size_t slen);
64 #define apr_strmatch(pattern, s, slen) (*((pattern)->compare))((pattern), (s), (slen))
68 * Precompile a pattern for matching using the Boyer-Moore-Horspool algorithm
69 * @param p The pool from which to allocate the pattern
70 * @param s The pattern string
71 * @param case_sensitive Whether the matching should be case-sensitive
72 * @return a pointer to the compiled pattern, or NULL if compilation fails
74 APU_DECLARE(const apr_strmatch_pattern *) apr_strmatch_precompile(apr_pool_t *p, const char *s, int case_sensitive);
81 #endif /* !APR_STRMATCH_H */