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/* This file is part of the YAZ toolkit.
* Copyright (C) Index Data
* See the file LICENSE for details.
*/
/**
* \file
* \brief Danmarc2 character set encoding
*/
#if HAVE_CONFIG_H
#include <config.h>
#endif
#include <assert.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <yaz/xmalloc.h>
#include "iconv-p.h"
static size_t write_danmarc(yaz_iconv_t cd, yaz_iconv_encoder_t en,
unsigned long x,
char **outbuf, size_t *outbytesleft)
{
unsigned char *outp = (unsigned char *) *outbuf;
if (x == '@' || x == '*')
{
if (*outbytesleft < 2)
{
yaz_iconv_set_errno(cd, YAZ_ICONV_E2BIG);
return (size_t)(-1);
}
*outp++ = '@';
(*outbytesleft)--;
*outp++ = (unsigned char) x;
(*outbytesleft)--;
}
else if (x <= 255)
{ /* latin-1 range */
if (*outbytesleft < 1)
{
yaz_iconv_set_errno(cd, YAZ_ICONV_E2BIG);
return (size_t)(-1);
}
*outp++ = (unsigned char) x;
(*outbytesleft)--;
}
else
{
if (*outbytesleft < 6)
{
yaz_iconv_set_errno(cd, YAZ_ICONV_E2BIG);
return (size_t)(-1);
}
switch (x)
{
case 0xa733:
*outp++ = '@';
*outp++ = 0xe5;
(*outbytesleft) -= 2;
break;
case 0xa732:
*outp++ = '@';
*outp++ = 0xc5;
(*outbytesleft) -= 2;
break;
default:
/* full unicode, emit @XXXX */
sprintf(*outbuf, "@%04lX", x);
outp += 5;
(*outbytesleft) -= 5;
break;
}
}
*outbuf = (char *) outp;
return 0;
}
yaz_iconv_encoder_t yaz_danmarc_encoder(const char *tocode,
yaz_iconv_encoder_t e)
{
if (!yaz_matchstr(tocode, "danmarc"))
{
e->write_handle = write_danmarc;
return e;
}
return 0;
}
/*
* Local variables:
* c-basic-offset: 4
* c-file-style: "Stroustrup"
* indent-tabs-mode: nil
* End:
* vim: shiftwidth=4 tabstop=8 expandtab
*/
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