Annotation of embedaddon/pcre/pcre_config.c, revision 1.1.1.4

1.1       misho       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
1.1.1.2   misho       9:            Copyright (c) 1997-2012 University of Cambridge
1.1       misho      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: 
1.1.1.2   misho      48: /* Keep the original link size. */
                     49: static int real_link_size = LINK_SIZE;
                     50: 
1.1       misho      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: 
1.1.1.3   misho      68: #if defined COMPILE_PCRE8
1.1       misho      69: PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
                     70: pcre_config(int what, void *where)
1.1.1.3   misho      71: #elif defined COMPILE_PCRE16
1.1.1.2   misho      72: PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
                     73: pcre16_config(int what, void *where)
1.1.1.3   misho      74: #elif defined COMPILE_PCRE32
                     75: PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
                     76: pcre32_config(int what, void *where)
1.1.1.2   misho      77: #endif
1.1       misho      78: {
                     79: switch (what)
                     80:   {
                     81:   case PCRE_CONFIG_UTF8:
1.1.1.3   misho      82: #if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
1.1.1.2   misho      83:   *((int *)where) = 0;
                     84:   return PCRE_ERROR_BADOPTION;
                     85: #else
                     86: #if defined SUPPORT_UTF
1.1       misho      87:   *((int *)where) = 1;
                     88: #else
                     89:   *((int *)where) = 0;
                     90: #endif
                     91:   break;
1.1.1.2   misho      92: #endif
                     93: 
                     94:   case PCRE_CONFIG_UTF16:
1.1.1.3   misho      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
1.1.1.2   misho     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
1.1       misho     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: 
1.1.1.2   misho     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: 
1.1       misho     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:
1.1.1.2   misho     157:   *((int *)where) = real_link_size;
1.1       misho     158:   break;
                    159: 
                    160:   case PCRE_CONFIG_POSIX_MALLOC_THRESHOLD:
                    161:   *((int *)where) = POSIX_MALLOC_THRESHOLD;
                    162:   break;
                    163: 
1.1.1.4 ! misho     164:   case PCRE_CONFIG_PARENS_LIMIT:
        !           165:   *((unsigned long int *)where) = PARENS_NEST_LIMIT;
        !           166:   break;
        !           167: 
1.1       misho     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 */

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