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    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) 1997-2011 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_JIT:
   87: #ifdef SUPPORT_JIT
   88:   *((int *)where) = 1;
   89: #else
   90:   *((int *)where) = 0;
   91: #endif
   92:   break;
   93: 
   94:   case PCRE_CONFIG_NEWLINE:
   95:   *((int *)where) = NEWLINE;
   96:   break;
   97: 
   98:   case PCRE_CONFIG_BSR:
   99: #ifdef BSR_ANYCRLF
  100:   *((int *)where) = 1;
  101: #else
  102:   *((int *)where) = 0;
  103: #endif
  104:   break;
  105: 
  106:   case PCRE_CONFIG_LINK_SIZE:
  107:   *((int *)where) = LINK_SIZE;
  108:   break;
  109: 
  110:   case PCRE_CONFIG_POSIX_MALLOC_THRESHOLD:
  111:   *((int *)where) = POSIX_MALLOC_THRESHOLD;
  112:   break;
  113: 
  114:   case PCRE_CONFIG_MATCH_LIMIT:
  115:   *((unsigned long int *)where) = MATCH_LIMIT;
  116:   break;
  117: 
  118:   case PCRE_CONFIG_MATCH_LIMIT_RECURSION:
  119:   *((unsigned long int *)where) = MATCH_LIMIT_RECURSION;
  120:   break;
  121: 
  122:   case PCRE_CONFIG_STACKRECURSE:
  123: #ifdef NO_RECURSE
  124:   *((int *)where) = 0;
  125: #else
  126:   *((int *)where) = 1;
  127: #endif
  128:   break;
  129: 
  130:   default: return PCRE_ERROR_BADOPTION;
  131:   }
  132: 
  133: return 0;
  134: }
  135: 
  136: /* End of pcre_config.c */