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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 file contains a private PCRE function that converts an ordinal
     42 character value into a UTF32 string. */
     43 
     44 #ifdef HAVE_CONFIG_H
     45 #include "config.h"
     46 #endif
     47 
     48 /* Generate code with 32 bit character support. */
     49 #define COMPILE_PCRE32
     50 
     51 #include "pcre_internal.h"
     52 
     53 /*************************************************
     54 *       Convert character value to UTF-32         *
     55 *************************************************/
     56 
     57 /* This function takes an integer value in the range 0 - 0x10ffff
     58 and encodes it as a UTF-32 character in 1 pcre_uchars.
     59 
     60 Arguments:
     61   cvalue     the character value
     62   buffer     pointer to buffer for result - at least 1 pcre_uchars long
     63 
     64 Returns:     number of characters placed in the buffer
     65 */
     66 
     67 unsigned int
     68 PRIV(ord2utf)(pcre_uint32 cvalue, pcre_uchar *buffer)
     69 {
     70 #ifdef SUPPORT_UTF
     71 
     72 *buffer = (pcre_uchar)cvalue;
     73 return 1;
     74 
     75 #else /* SUPPORT_UTF */
     76 (void)(cvalue);  /* Keep compiler happy; this function won't ever be */
     77 (void)(buffer);  /* called when SUPPORT_UTF is not defined. */
     78 return 0;
     79 #endif /* SUPPORT_UTF */
     80 }
     81 
     82 /* End of pcre32_ord2utf32.c */
     83