/vendor/pcre/pcre_config.c

  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) 1997-2008 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#include "pcre_internal.h"
 49
 50
 51/*************************************************
 52* Return info about what features are configured *
 53*************************************************/
 54
 55/* This function has an extensible interface so that additional items can be
 56added compatibly.
 57
 58Arguments:
 59  what             what information is required
 60  where            where to put the information
 61
 62Returns:           0 if data returned, negative on error
 63*/
 64
 65PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
 66pcre_config(int what, void *where)
 67{
 68switch (what)
 69  {
 70  case PCRE_CONFIG_UTF8:
 71#ifdef SUPPORT_UTF8
 72  *((int *)where) = 1;
 73#else
 74  *((int *)where) = 0;
 75#endif
 76  break;
 77
 78  case PCRE_CONFIG_UNICODE_PROPERTIES:
 79#ifdef SUPPORT_UCP
 80  *((int *)where) = 1;
 81#else
 82  *((int *)where) = 0;
 83#endif
 84  break;
 85
 86  case PCRE_CONFIG_NEWLINE:
 87  *((int *)where) = NEWLINE;
 88  break;
 89
 90  case PCRE_CONFIG_BSR:
 91#ifdef BSR_ANYCRLF
 92  *((int *)where) = 1;
 93#else
 94  *((int *)where) = 0;
 95#endif
 96  break;
 97
 98  case PCRE_CONFIG_LINK_SIZE:
 99  *((int *)where) = LINK_SIZE;
100  break;
101
102  case PCRE_CONFIG_POSIX_MALLOC_THRESHOLD:
103  *((int *)where) = POSIX_MALLOC_THRESHOLD;
104  break;
105
106  case PCRE_CONFIG_MATCH_LIMIT:
107  *((unsigned int *)where) = MATCH_LIMIT;
108  break;
109
110  case PCRE_CONFIG_MATCH_LIMIT_RECURSION:
111  *((unsigned int *)where) = MATCH_LIMIT_RECURSION;
112  break;
113
114  case PCRE_CONFIG_STACKRECURSE:
115#ifdef NO_RECURSE
116  *((int *)where) = 0;
117#else
118  *((int *)where) = 1;
119#endif
120  break;
121
122  default: return PCRE_ERROR_BADOPTION;
123  }
124
125return 0;
126}
127
128/* End of pcre_config.c */