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 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 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. 15 */ 16 17#ifndef APR_STRMATCH_H 18#define APR_STRMATCH_H 19/** 20 * @file apr_strmatch.h 21 * @brief APR-UTIL string matching routines 22 */ 23 24#include "apu.h" 25#include "apr_pools.h" 26 27#ifdef __cplusplus 28extern "C" { 29#endif 30 31/** 32 * @defgroup APR_Util_StrMatch String matching routines 33 * @ingroup APR_Util 34 * @{ 35 */ 36 37/** @see apr_strmatch_pattern */ 38typedef struct apr_strmatch_pattern apr_strmatch_pattern; 39 40/** 41 * Precompiled search pattern 42 */ 43struct 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 */ 50}; 51 52#if defined(DOXYGEN) 53/** 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 59 * NULL if not found 60 */ 61APU_DECLARE(const char *) apr_strmatch(const apr_strmatch_pattern *pattern, 62 const char *s, apr_size_t slen); 63#else 64#define apr_strmatch(pattern, s, slen) (*((pattern)->compare))((pattern), (s), (slen)) 65#endif 66 67/** 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 73 */ 74APU_DECLARE(const apr_strmatch_pattern *) apr_strmatch_precompile(apr_pool_t *p, const char *s, int case_sensitive); 75 76/** @} */ 77#ifdef __cplusplus 78} 79#endif 80 81#endif /* !APR_STRMATCH_H */ 82