NCBI C++ Toolkit Cross Reference

C++/src/util/regexp/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) 1997-2009 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 long int *)where) = MATCH_LIMIT;
108   break;
109 
110   case PCRE_CONFIG_MATCH_LIMIT_RECURSION:
111   *((unsigned long 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 */
129
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