/*************************************************

*      Perl-Compatible Regular Expressions       *

*************************************************/

/* PCRE is a library of functions to support regular expressions whose syntax

and semantics are as close as possible to those of the Perl 5 language.

                       Written by Philip Hazel

           Copyright (c) 1997-2008 University of Cambridge

-----------------------------------------------------------------------------

Redistribution and use in source and binary forms, with or without

modification, are permitted provided that the following conditions are met:

    * Redistributions of source code must retain the above copyright notice,

      this list of conditions and the following disclaimer.

    * Redistributions in binary form must reproduce the above copyright

      notice, this list of conditions and the following disclaimer in the

      documentation and/or other materials provided with the distribution.

    * Neither the name of the University of Cambridge nor the names of its

      contributors may be used to endorse or promote products derived from

      this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE

LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

POSSIBILITY OF SUCH DAMAGE.

-----------------------------------------------------------------------------

*/

/* This file contains a private PCRE function that converts an ordinal

character value into a UTF8 string. */

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include "pcre_internal.h"

/*************************************************

*       Convert character value to UTF-8         *

*************************************************/

/* This function takes an integer value in the range 0 - 0x7fffffff

and encodes it as a UTF-8 character in 0 to 6 bytes.

Arguments:

  cvalue     the character value

  buffer     pointer to buffer for result - at least 6 bytes long

Returns:     number of characters placed in the buffer

*/

int

_pcre_ord2utf8(int cvalue, uschar *buffer)

{

#ifdef SUPPORT_UTF8

register int i, j;

for (i = 0; i < _pcre_utf8_table1_size; i++)

  if (cvalue <= _pcre_utf8_table1[i]) break;

buffer += i;

for (j = i; j > 0; j--)

 {

 *buffer-- = 0x80 | (cvalue & 0x3f);

 cvalue >>= 6;

 }

*buffer = _pcre_utf8_table2[i] | cvalue;

return i + 1;

#else

(void)(cvalue);  /* Keep compiler happy; this function won't ever be */

(void)(buffer);  /* called when SUPPORT_UTF8 is not defined. */

return 0;

#endif

}

/* End of pcre_ord2utf8.c */