mirror of
https://github.com/moparisthebest/k-9
synced 2024-08-13 17:03:48 -04:00
91 lines
3.5 KiB
Java
91 lines
3.5 KiB
Java
|
/* ====================================================================
|
||
|
* Copyright (c) 2006 J.T. Beetstra
|
||
|
*
|
||
|
* Permission is hereby granted, free of charge, to any person obtaining
|
||
|
* a copy of this software and associated documentation files (the
|
||
|
* "Software"), to deal in the Software without restriction, including
|
||
|
* without limitation the rights to use, copy, modify, merge, publish,
|
||
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
||
|
* permit persons to whom the Software is furnished to do so, subject to
|
||
|
* the following conditions:
|
||
|
*
|
||
|
* The above copyright notice and this permission notice shall be
|
||
|
* included in all copies or substantial portions of the Software.
|
||
|
*
|
||
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
||
|
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
||
|
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
||
|
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
||
|
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||
|
* ====================================================================
|
||
|
*/
|
||
|
|
||
|
package com.beetstra.jutf7;
|
||
|
|
||
|
import java.io.UnsupportedEncodingException;
|
||
|
import java.nio.charset.Charset;
|
||
|
import java.util.Arrays;
|
||
|
import java.util.Iterator;
|
||
|
import java.util.List;
|
||
|
|
||
|
/**
|
||
|
* <p>
|
||
|
* Charset service-provider class used for both variants of the UTF-7 charset
|
||
|
* and the modified-UTF-7 charset.
|
||
|
* </p>
|
||
|
*
|
||
|
* @author Jaap Beetstra
|
||
|
*/
|
||
|
public class CharsetProvider extends java.nio.charset.spi.CharsetProvider {
|
||
|
private static final String UTF7_NAME = "UTF-7";
|
||
|
private static final String UTF7_O_NAME = "X-UTF-7-OPTIONAL";
|
||
|
private static final String UTF7_M_NAME = "X-MODIFIED-UTF-7";
|
||
|
private static final String[] UTF7_ALIASES = new String[] {
|
||
|
"UNICODE-1-1-UTF-7", "CSUNICODE11UTF7", "X-RFC2152", "X-RFC-2152"
|
||
|
};
|
||
|
private static final String[] UTF7_O_ALIASES = new String[] {
|
||
|
"X-RFC2152-OPTIONAL", "X-RFC-2152-OPTIONAL"
|
||
|
};
|
||
|
private static final String[] UTF7_M_ALIASES = new String[] {
|
||
|
"X-IMAP-MODIFIED-UTF-7", "X-IMAP4-MODIFIED-UTF7", "X-IMAP4-MODIFIED-UTF-7",
|
||
|
"X-RFC3501", "X-RFC-3501"
|
||
|
};
|
||
|
private Charset utf7charset = new UTF7Charset(UTF7_NAME, UTF7_ALIASES, false);
|
||
|
private Charset utf7oCharset = new UTF7Charset(UTF7_O_NAME, UTF7_O_ALIASES, true);
|
||
|
private Charset imap4charset = new ModifiedUTF7Charset(UTF7_M_NAME, UTF7_M_ALIASES);
|
||
|
private List charsets;
|
||
|
|
||
|
public CharsetProvider() {
|
||
|
charsets = Arrays.asList(new Object[] {
|
||
|
utf7charset, imap4charset, utf7oCharset
|
||
|
});
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* {@inheritDoc}
|
||
|
*/
|
||
|
public Charset charsetForName(String charsetName) {
|
||
|
charsetName = charsetName.toUpperCase();
|
||
|
for (Iterator iter = charsets.iterator(); iter.hasNext();) {
|
||
|
Charset charset = (Charset)iter.next();
|
||
|
if (charset.name().equals(charsetName))
|
||
|
return charset;
|
||
|
}
|
||
|
for (Iterator iter = charsets.iterator(); iter.hasNext();) {
|
||
|
Charset charset = (Charset)iter.next();
|
||
|
if (charset.aliases().contains(charsetName))
|
||
|
return charset;
|
||
|
}
|
||
|
return null;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* {@inheritDoc}
|
||
|
*/
|
||
|
public Iterator charsets() {
|
||
|
return charsets.iterator();
|
||
|
}
|
||
|
}
|