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Member "pcre-8.43/pcre_config.c" (31 Jan 2014, 4983 Bytes) of package /linux/misc/pcre-8.43.tar.bz2:


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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) 1997-2012 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 /* Keep the original link size. */
   49 static int real_link_size = LINK_SIZE;
   50 
   51 #include "pcre_internal.h"
   52 
   53 
   54 /*************************************************
   55 * Return info about what features are configured *
   56 *************************************************/
   57 
   58 /* This function has an extensible interface so that additional items can be
   59 added compatibly.
   60 
   61 Arguments:
   62   what             what information is required
   63   where            where to put the information
   64 
   65 Returns:           0 if data returned, negative on error
   66 */
   67 
   68 #if defined COMPILE_PCRE8
   69 PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
   70 pcre_config(int what, void *where)
   71 #elif defined COMPILE_PCRE16
   72 PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
   73 pcre16_config(int what, void *where)
   74 #elif defined COMPILE_PCRE32
   75 PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
   76 pcre32_config(int what, void *where)
   77 #endif
   78 {
   79 switch (what)
   80   {
   81   case PCRE_CONFIG_UTF8:
   82 #if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
   83   *((int *)where) = 0;
   84   return PCRE_ERROR_BADOPTION;
   85 #else
   86 #if defined SUPPORT_UTF
   87   *((int *)where) = 1;
   88 #else
   89   *((int *)where) = 0;
   90 #endif
   91   break;
   92 #endif
   93 
   94   case PCRE_CONFIG_UTF16:
   95 #if defined COMPILE_PCRE8 || defined COMPILE_PCRE32
   96   *((int *)where) = 0;
   97   return PCRE_ERROR_BADOPTION;
   98 #else
   99 #if defined SUPPORT_UTF
  100   *((int *)where) = 1;
  101 #else
  102   *((int *)where) = 0;
  103 #endif
  104   break;
  105 #endif
  106 
  107   case PCRE_CONFIG_UTF32:
  108 #if defined COMPILE_PCRE8 || defined COMPILE_PCRE16
  109   *((int *)where) = 0;
  110   return PCRE_ERROR_BADOPTION;
  111 #else
  112 #if defined SUPPORT_UTF
  113   *((int *)where) = 1;
  114 #else
  115   *((int *)where) = 0;
  116 #endif
  117   break;
  118 #endif
  119 
  120   case PCRE_CONFIG_UNICODE_PROPERTIES:
  121 #ifdef SUPPORT_UCP
  122   *((int *)where) = 1;
  123 #else
  124   *((int *)where) = 0;
  125 #endif
  126   break;
  127 
  128   case PCRE_CONFIG_JIT:
  129 #ifdef SUPPORT_JIT
  130   *((int *)where) = 1;
  131 #else
  132   *((int *)where) = 0;
  133 #endif
  134   break;
  135 
  136   case PCRE_CONFIG_JITTARGET:
  137 #ifdef SUPPORT_JIT
  138   *((const char **)where) = PRIV(jit_get_target)();
  139 #else
  140   *((const char **)where) = NULL;
  141 #endif
  142   break;
  143 
  144   case PCRE_CONFIG_NEWLINE:
  145   *((int *)where) = NEWLINE;
  146   break;
  147 
  148   case PCRE_CONFIG_BSR:
  149 #ifdef BSR_ANYCRLF
  150   *((int *)where) = 1;
  151 #else
  152   *((int *)where) = 0;
  153 #endif
  154   break;
  155 
  156   case PCRE_CONFIG_LINK_SIZE:
  157   *((int *)where) = real_link_size;
  158   break;
  159 
  160   case PCRE_CONFIG_POSIX_MALLOC_THRESHOLD:
  161   *((int *)where) = POSIX_MALLOC_THRESHOLD;
  162   break;
  163 
  164   case PCRE_CONFIG_PARENS_LIMIT:
  165   *((unsigned long int *)where) = PARENS_NEST_LIMIT;
  166   break;
  167 
  168   case PCRE_CONFIG_MATCH_LIMIT:
  169   *((unsigned long int *)where) = MATCH_LIMIT;
  170   break;
  171 
  172   case PCRE_CONFIG_MATCH_LIMIT_RECURSION:
  173   *((unsigned long int *)where) = MATCH_LIMIT_RECURSION;
  174   break;
  175 
  176   case PCRE_CONFIG_STACKRECURSE:
  177 #ifdef NO_RECURSE
  178   *((int *)where) = 0;
  179 #else
  180   *((int *)where) = 1;
  181 #endif
  182   break;
  183 
  184   default: return PCRE_ERROR_BADOPTION;
  185   }
  186 
  187 return 0;
  188 }
  189 
  190 /* End of pcre_config.c */