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/*

 * Copyright (c) 2003-2004, Artem B. Bityuckiy

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. 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.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 CES converter is just an simple extension of table CES converter.

 * This CES converter is used for 16 bit CCSes which include 7bit

 * Portable Characters Set (PCS) (equivalent to ASCII) (example: BIG5).

 */

#include "cesbi.h"

#if defined (ICONV_TO_UCS_CES_TABLE_PCS) \

 || defined (ICONV_FROM_UCS_CES_TABLE_PCS)

#include <_ansi.h>

#include <reent.h>

#include <sys/types.h>

#include "../lib/local.h"

#include "../lib/ucsconv.h"

#if defined (ICONV_FROM_UCS_CES_TABLE_PCS)

static size_t

_DEFUN(table_pcs_convert_from_ucs, (data, in, outbuf, outbytesleft),

                               _VOID_PTR data         _AND

                               ucs4_t in              _AND

                               unsigned char **outbuf _AND

                               size_t *outbytesleft)

{

  if (*outbytesleft < 1)

    return (size_t)ICONV_CES_NOSPACE;

  if (in  < 0x80)

    {

      **outbuf = (unsigned char)in;

      *outbuf += 1;

      *outbytesleft -= 1;

      return 1;

    }

  return _iconv_from_ucs_ces_handlers_table.convert_from_ucs (

                                                    data,

                                                    in,

                                                    outbuf,

                                                    outbytesleft);

}

static _VOID_PTR

_DEFUN(table_pcs_from_ucs_init, (rptr, encoding),

                                struct _reent *rptr _AND

                                _CONST char *encoding)

{

  return _iconv_from_ucs_ces_handlers_table.init (rptr, encoding);

}

static size_t

_DEFUN(table_pcs_from_ucs_close, (rptr, data),

                                 struct _reent *rptr _AND

                                 _VOID_PTR data)

{

  return _iconv_from_ucs_ces_handlers_table.close (rptr, data);

}

static int

_DEFUN(table_pcs_from_ucs_get_mb_cur_max, (data),

                                           _VOID_PTR data)

{

  return _iconv_from_ucs_ces_handlers_table.get_mb_cur_max (data);

}

#endif /* ICONV_FROM_UCS_CES_TABLE_PCS */

#if defined (ICONV_TO_UCS_CES_TABLE_PCS)

static ucs4_t

_DEFUN(table_pcs_convert_to_ucs, (data, inbuf, inbytesleft),

                             _VOID_PTR data               _AND

                             _CONST unsigned char **inbuf _AND

                             size_t *inbytesleft)

{

  if (*inbytesleft < 1)

    return (ucs4_t)ICONV_CES_BAD_SEQUENCE;

  if (**inbuf < 0x80)

    {

      *inbytesleft -= 1;

      *inbuf += 1;

      return (ucs4_t)(*(*inbuf - 1));

    }

  return _iconv_to_ucs_ces_handlers_table.convert_to_ucs (

                                                             data,

                                                             inbuf,

                                                             inbytesleft);

}

static _VOID_PTR

_DEFUN(table_pcs_to_ucs_init, (rptr, encoding),

                              struct _reent *rptr _AND

                              _CONST char *encoding)

{

  return _iconv_to_ucs_ces_handlers_table.init (rptr, encoding);

}

static size_t

_DEFUN(table_pcs_to_ucs_close, (rptr, data),

                               struct _reent *rptr _AND

                               _VOID_PTR data)

{

  return _iconv_to_ucs_ces_handlers_table.close (rptr, data);

}

static int

_DEFUN(table_pcs_to_ucs_get_mb_cur_max, (data),

                                         _VOID_PTR data)

{

  return _iconv_to_ucs_ces_handlers_table.get_mb_cur_max (data);

}

#endif /* ICONV_TO_UCS_CES_TABLE_PCS */

#if defined (ICONV_FROM_UCS_CES_TABLE_PCS)

_CONST iconv_from_ucs_ces_handlers_t

_iconv_from_ucs_ces_handlers_table_pcs =

{

  table_pcs_from_ucs_init,

  table_pcs_from_ucs_close,

  table_pcs_from_ucs_get_mb_cur_max,

  NULL,

  NULL,

  NULL,

  table_pcs_convert_from_ucs

};

#endif

#if defined (ICONV_TO_UCS_CES_TABLE_PCS)

_CONST iconv_to_ucs_ces_handlers_t

_iconv_to_ucs_ces_handlers_table_pcs =

{

  table_pcs_to_ucs_init,

  table_pcs_to_ucs_close,

  table_pcs_to_ucs_get_mb_cur_max,

  NULL,

  NULL,

  NULL,

  table_pcs_convert_to_ucs

};

#endif

#endif /* ICONV_TO_UCS_CES_TABLE_PCS || ICONV_FROM_UCS_CES_TABLE_PCS */