glib/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
   6 and 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 -----------------------------------------------------------------------------
  12 Redistribution and use in source and binary forms, with or without
  13 modification, 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
  26 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  27 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  28 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  29 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  30 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  31 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  32 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  33 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  34 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  35 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  36 POSSIBILITY 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
  56 added compatibly.
  57
  58 Arguments:
  59   what             what information is required
  60   where            where to put the information
  61
  62 Returns:           0 if data returned, negative on error
  63 */
  64
  65 PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
  66 pcre_config(int what, void *where)
  67 {
  68 switch (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
 125 return 0;
 126 }
 127
 128 /* End of pcre_config.c */