1/************************************************* 2* Perl-Compatible Regular Expressions * 3*************************************************/ 4 5/* PCRE is a library of functions to support regular expressions whose syntax 6and semantics are as close as possible to those of the Perl 5 language. 7 8 Written by Philip Hazel 9 Copyright (c) 1997-2012 University of Cambridge 10 11----------------------------------------------------------------------------- 12Redistribution and use in source and binary forms, with or without 13modification, are permitted provided that the following conditions are met: 14 15 * Redistributions of source code must retain the above copyright notice, 16 this list of conditions and the following disclaimer. 17 18 * Redistributions in binary form must reproduce the above copyright 19 notice, this list of conditions and the following disclaimer in the 20 documentation and/or other materials provided with the distribution. 21 22 * Neither the name of the University of Cambridge nor the names of its 23 contributors may be used to endorse or promote products derived from 24 this software without specific prior written permission. 25 26THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 27AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 30LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36POSSIBILITY OF SUCH DAMAGE. 37----------------------------------------------------------------------------- 38*/ 39 40 41/* This module contains the external function pcre_config(). */ 42 43 44#ifdef HAVE_CONFIG_H 45#include "config.h" 46#endif 47 48/* Keep the original link size. */ 49static int real_link_size = LINK_SIZE; 50 51#include "pcre_internal.h" 52 53 54/************************************************* 55* Return info about what features are configured * 56*************************************************/ 57 58/* This function has an extensible interface so that additional items can be 59added compatibly. 60 61Arguments: 62 what what information is required 63 where where to put the information 64 65Returns: 0 if data returned, negative on error 66*/ 67 68#ifdef COMPILE_PCRE8 69PCRE_EXP_DEFN int PCRE_CALL_CONVENTION 70pcre_config(int what, void *where) 71#else 72PCRE_EXP_DEFN int PCRE_CALL_CONVENTION 73pcre16_config(int what, void *where) 74#endif 75{ 76switch (what) 77 { 78 case PCRE_CONFIG_UTF8: 79#if defined COMPILE_PCRE16 80 *((int *)where) = 0; 81 return PCRE_ERROR_BADOPTION; 82#else 83#if defined SUPPORT_UTF 84 *((int *)where) = 1; 85#else 86 *((int *)where) = 0; 87#endif 88 break; 89#endif 90 91 case PCRE_CONFIG_UTF16: 92#if defined COMPILE_PCRE8 93 *((int *)where) = 0; 94 return PCRE_ERROR_BADOPTION; 95#else 96#if defined SUPPORT_UTF 97 *((int *)where) = 1; 98#else 99 *((int *)where) = 0; 100#endif 101 break; 102#endif 103 104 case PCRE_CONFIG_UNICODE_PROPERTIES: 105#ifdef SUPPORT_UCP 106 *((int *)where) = 1; 107#else 108 *((int *)where) = 0; 109#endif 110 break; 111 112 case PCRE_CONFIG_JIT: 113#ifdef SUPPORT_JIT 114 *((int *)where) = 1; 115#else 116 *((int *)where) = 0; 117#endif 118 break; 119 120 case PCRE_CONFIG_JITTARGET: 121#ifdef SUPPORT_JIT 122 *((const char **)where) = PRIV(jit_get_target)(); 123#else 124 *((const char **)where) = NULL; 125#endif 126 break; 127 128 case PCRE_CONFIG_NEWLINE: 129 *((int *)where) = NEWLINE; 130 break; 131 132 case PCRE_CONFIG_BSR: 133#ifdef BSR_ANYCRLF 134 *((int *)where) = 1; 135#else 136 *((int *)where) = 0; 137#endif 138 break; 139 140 case PCRE_CONFIG_LINK_SIZE: 141 *((int *)where) = real_link_size; 142 break; 143 144 case PCRE_CONFIG_POSIX_MALLOC_THRESHOLD: 145 *((int *)where) = POSIX_MALLOC_THRESHOLD; 146 break; 147 148 case PCRE_CONFIG_MATCH_LIMIT: 149 *((unsigned long int *)where) = MATCH_LIMIT; 150 break; 151 152 case PCRE_CONFIG_MATCH_LIMIT_RECURSION: 153 *((unsigned long int *)where) = MATCH_LIMIT_RECURSION; 154 break; 155 156 case PCRE_CONFIG_STACKRECURSE: 157#ifdef NO_RECURSE 158 *((int *)where) = 0; 159#else 160 *((int *)where) = 1; 161#endif 162 break; 163 164 default: return PCRE_ERROR_BADOPTION; 165 } 166 167return 0; 168} 169 170/* End of pcre_config.c */ 171