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src/pcre/pcre_config.c

00001 /*************************************************
00002 *      Perl-Compatible Regular Expressions       *
00003 *************************************************/
00004 
00005 /* PCRE is a library of functions to support regular expressions whose syntax
00006 and semantics are as close as possible to those of the Perl 5 language.
00007 
00008                        Written by Philip Hazel
00009            Copyright (c) 1997-2009 University of Cambridge
00010 
00011 -----------------------------------------------------------------------------
00012 Redistribution and use in source and binary forms, with or without
00013 modification, are permitted provided that the following conditions are met:
00014 
00015     * Redistributions of source code must retain the above copyright notice,
00016       this list of conditions and the following disclaimer.
00017 
00018     * Redistributions in binary form must reproduce the above copyright
00019       notice, this list of conditions and the following disclaimer in the
00020       documentation and/or other materials provided with the distribution.
00021 
00022     * Neither the name of the University of Cambridge nor the names of its
00023       contributors may be used to endorse or promote products derived from
00024       this software without specific prior written permission.
00025 
00026 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00027 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00028 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00029 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
00030 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
00031 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
00032 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00033 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
00034 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
00035 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00036 POSSIBILITY OF SUCH DAMAGE.
00037 -----------------------------------------------------------------------------
00038 */
00039 
00040 
00041 /* This module contains the external function pcre_config(). */
00042 
00043 
00044 #ifdef HAVE_CONFIG_H
00045 #include "config.h"
00046 #else if defined(_WINDOWS)
00047 #include <spl/configwin32.h>
00048 #endif
00049 
00050 
00051 #include "pcre_internal.h"
00052 
00053 
00054 /*************************************************
00055 * Return info about what features are configured *
00056 *************************************************/
00057 
00058 /* This function has an extensible interface so that additional items can be
00059 added compatibly.
00060 
00061 Arguments:
00062   what             what information is required
00063   where            where to put the information
00064 
00065 Returns:           0 if data returned, negative on error
00066 */
00067 
00068 PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
00069 pcre_config(int what, void *where)
00070 {
00071 switch (what)
00072   {
00073   case PCRE_CONFIG_UTF8:
00074 #ifdef SUPPORT_UTF8
00075   *((int *)where) = 1;
00076 #else
00077   *((int *)where) = 0;
00078 #endif
00079   break;
00080 
00081   case PCRE_CONFIG_UNICODE_PROPERTIES:
00082 #ifdef SUPPORT_UCP
00083   *((int *)where) = 1;
00084 #else
00085   *((int *)where) = 0;
00086 #endif
00087   break;
00088 
00089   case PCRE_CONFIG_NEWLINE:
00090   *((int *)where) = NEWLINE;
00091   break;
00092 
00093   case PCRE_CONFIG_BSR:
00094 #ifdef BSR_ANYCRLF
00095   *((int *)where) = 1;
00096 #else
00097   *((int *)where) = 0;
00098 #endif
00099   break;
00100 
00101   case PCRE_CONFIG_LINK_SIZE:
00102   *((int *)where) = LINK_SIZE;
00103   break;
00104 
00105   case PCRE_CONFIG_POSIX_MALLOC_THRESHOLD:
00106   *((int *)where) = POSIX_MALLOC_THRESHOLD;
00107   break;
00108 
00109   case PCRE_CONFIG_MATCH_LIMIT:
00110   *((unsigned long int *)where) = MATCH_LIMIT;
00111   break;
00112 
00113   case PCRE_CONFIG_MATCH_LIMIT_RECURSION:
00114   *((unsigned long int *)where) = MATCH_LIMIT_RECURSION;
00115   break;
00116 
00117   case PCRE_CONFIG_STACKRECURSE:
00118 #ifdef NO_RECURSE
00119   *((int *)where) = 0;
00120 #else
00121   *((int *)where) = 1;
00122 #endif
00123   break;
00124 
00125   default: return PCRE_ERROR_BADOPTION;
00126   }
00127 
00128 return 0;
00129 }
00130 
00131 /* End of pcre_config.c */