src/src/pcre/pcre_config.c

   1 /* $Cambridge: exim/src/src/pcre/pcre_config.c,v 1.3 2006/11/07 16:50:36 ph10 Exp $ */
   2
   3 /*************************************************
   4 *      Perl-Compatible Regular Expressions       *
   5 *************************************************/
   6
   7 /* PCRE is a library of functions to support regular expressions whose syntax
   8 and semantics are as close as possible to those of the Perl 5 language.
   9
  10                        Written by Philip Hazel
  11            Copyright (c) 1997-2006 University of Cambridge
  12
  13 -----------------------------------------------------------------------------
  14 Redistribution and use in source and binary forms, with or without
  15 modification, are permitted provided that the following conditions are met:
  16
  17     * Redistributions of source code must retain the above copyright notice,
  18       this list of conditions and the following disclaimer.
  19
  20     * Redistributions in binary form must reproduce the above copyright
  21       notice, this list of conditions and the following disclaimer in the
  22       documentation and/or other materials provided with the distribution.
  23
  24     * Neither the name of the University of Cambridge nor the names of its
  25       contributors may be used to endorse or promote products derived from
  26       this software without specific prior written permission.
  27
  28 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  29 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  30 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  31 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  32 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  33 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  34 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  35 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  36 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  37 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  38 POSSIBILITY OF SUCH DAMAGE.
  39 -----------------------------------------------------------------------------
  40 */
  41
  42
  43 /* This module contains the external function pcre_config(). */
  44
  45
  46 #include "pcre_internal.h"
  47
  48
  49 /*************************************************
  50 * Return info about what features are configured *
  51 *************************************************/
  52
  53 /* This function has an extensible interface so that additional items can be
  54 added compatibly.
  55
  56 Arguments:
  57   what             what information is required
  58   where            where to put the information
  59
  60 Returns:           0 if data returned, negative on error
  61 */
  62
  63 PCRE_DATA_SCOPE int
  64 pcre_config(int what, void *where)
  65 {
  66 switch (what)
  67   {
  68   case PCRE_CONFIG_UTF8:
  69 #ifdef SUPPORT_UTF8
  70   *((int *)where) = 1;
  71 #else
  72   *((int *)where) = 0;
  73 #endif
  74   break;
  75
  76   case PCRE_CONFIG_UNICODE_PROPERTIES:
  77 #ifdef SUPPORT_UCP
  78   *((int *)where) = 1;
  79 #else
  80   *((int *)where) = 0;
  81 #endif
  82   break;
  83
  84   case PCRE_CONFIG_NEWLINE:
  85   *((int *)where) = NEWLINE;
  86   break;
  87
  88   case PCRE_CONFIG_LINK_SIZE:
  89   *((int *)where) = LINK_SIZE;
  90   break;
  91
  92   case PCRE_CONFIG_POSIX_MALLOC_THRESHOLD:
  93   *((int *)where) = POSIX_MALLOC_THRESHOLD;
  94   break;
  95
  96   case PCRE_CONFIG_MATCH_LIMIT:
  97   *((unsigned int *)where) = MATCH_LIMIT;
  98   break;
  99
 100   case PCRE_CONFIG_MATCH_LIMIT_RECURSION:
 101   *((unsigned int *)where) = MATCH_LIMIT_RECURSION;
 102   break;
 103
 104   case PCRE_CONFIG_STACKRECURSE:
 105 #ifdef NO_RECURSE
 106   *((int *)where) = 0;
 107 #else
 108   *((int *)where) = 1;
 109 #endif
 110   break;
 111
 112   default: return PCRE_ERROR_BADOPTION;
 113   }
 114
 115 return 0;
 116 }
 117
 118 /* End of pcre_config.c */