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/* This file is part of the Project Athena Zephyr Notification System.
* It contains source for the ZGetCharset function.
*
* Created by: Karl Ramm
*
* $Id$
*
* Copyright (c) 2009 by the Massachusetts Institute of Technology.
* For copying and distribution information, see the file
* "mit-copyright.h".
*/
#ifndef lint
static const char rcsid_charset_c[] = "$Id$";
#endif /* lint */
#include <internal.h>
#include <string.h>
#include <locale.h>
#include <langinfo.h>
#include <ctype.h>
unsigned short
ZGetCharset(char *charset)
{
char *p;
short retval;
static int once = 1;
if (charset == NULL)
charset = getenv("ZEPHYR_CHARSET");
if (charset == NULL) {
if (once) {
setlocale(LC_ALL, "");
once = 0;
}
charset = nl_langinfo(CODESET);
}
if (charset == NULL)
return ZCHARSET_UNKNOWN;
charset = strdup(charset);
for (p = charset; *p; p++)
*p = toupper(*p);
if (!strcmp(charset, "NONE") || !strcmp(charset, "UNKNOWN"))
retval = ZCHARSET_UNKNOWN;
else if (!strcmp(charset, "ANSI_X3.4-1968"))
retval = ZCHARSET_ISO_8859_1; /* A hack. */
else if (!strcmp(charset, "ISO-8859-1"))
retval = ZCHARSET_ISO_8859_1;
else if (!strcmp(charset, "UTF-8"))
retval = ZCHARSET_UTF_8;
else
retval = ZCHARSET_UNKNOWN;
free(charset);
return retval;
}
const char *
ZCharsetToString(unsigned short charset)
{
if (charset == ZCHARSET_UNKNOWN)
return "UNKNOWN";
else if (charset == ZCHARSET_ISO_8859_1)
return "ISO-8859-1";
else if (charset == ZCHARSET_UTF_8)
return "UTF-8";
return "UNKNOWN";
}
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