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/*
** Copyright 2000-2003 Double Precision, Inc.
** See COPYING for distribution information.
**
** $Id: ibm864convert.c,v 1.2 2003/03/07 00:47:31 mrsam Exp $
*/
#include "unicode_config.h"
#include "unicode.h"
#include <string.h>
#include <stdlib.h>
/* IBM864 has this pesky 0x25 mapping charsets all share the same functions */
unicode_char *unicode_ibm864_c2u(const char *str, int *err,
const unicode_char *table)
{
size_t l=strlen(str);
unicode_char *p=(unicode_char *)malloc((l+1) * sizeof(unicode_char));
if (err)
*err= -1;
if (!p)
return (0);
for (l=0; str[l]; l++)
{
unicode_char c=table[(unsigned char)str[l]];
if (!c)
{
if (err)
{
*err=l;
free(p);
return (0);
}
c=(int)(unsigned char)str[l];
}
p[l]=c;
}
p[l]=0;
return (p);
}
char *unicode_ibm864_u2c(const unicode_char *uc, int *errflag,
const unicode_char *tab)
{
size_t l;
char *p;
for (l=0; uc[l]; l++)
;
if (errflag) *errflag= -1;
p=malloc(l+1);
if (!p)
return (0);
for (l=0; uc[l]; l++)
{
int c;
unicode_char ucc=uc[l];
/* First, guess */
if (tab[ ucc & 0xFF ] == uc[l])
c=(int)(ucc & 0xFF);
else
{
for (c=0; c<256; c++)
if (tab[c] == uc[l])
break;
if (c >= 256)
{
if (errflag)
{
*errflag=l;
free(p);
return (0);
}
c=uc[l];
}
}
if (c == 0)
c=255;
p[l]=(char)c;
}
p[l]=0;
return (p);
}
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