Mercurial > jhg

annotate src/org/tmatesoft/hg/internal/EncodingHelper.java @ 445:d0e5dc3cae6e smartgit3

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Support for phases functionality from Mercurial 2.1
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 05 Jun 2012 20:50:06 +0200
parents 63c5a9d7ca3f
children ee8264d80747
rev   line source
320
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
1 /*
412
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
2 * Copyright (c) 2011-2012 TMate Software Ltd
320
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
3 *
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
4 * This program is free software; you can redistribute it and/or modify
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
5 * it under the terms of the GNU General Public License as published by
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
6 * the Free Software Foundation; version 2 of the License.
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
7 *
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
8 * This program is distributed in the hope that it will be useful,
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
11 * GNU General Public License for more details.
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
12 *
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
13 * For information on how to redistribute this software under
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
14 * the terms of a license other than GNU General Public License
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
15 * contact TMate Software at support@hg4j.com
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
16 */
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
17 package org.tmatesoft.hg.internal;
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
18
412
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
19 import java.nio.ByteBuffer;
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
20 import java.nio.charset.CharacterCodingException;
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
21 import java.nio.charset.Charset;
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
22 import java.nio.charset.CharsetDecoder;
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
23 import java.nio.charset.CharsetEncoder;
320
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
24
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
25 /**
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
26 * Keep all encoding-related issues in the single place
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
27 * @author Artem Tikhomirov
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
28 * @author TMate Software Ltd.
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
29 */
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
30 public class EncodingHelper {
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
31 // XXX perhaps, shall not be full of statics, but rather an instance coming from e.g. HgRepository?
412
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
32 /*
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
33 * To understand what Mercurial thinks of UTF-8 and Unix byte approach to names, see
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
34 * http://mercurial.808500.n3.nabble.com/Unicode-support-request-td3430704.html
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
35 */
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
36
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
37 private final CharsetEncoder encoder;
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
38 private final CharsetDecoder decoder;
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
39
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
40 EncodingHelper(Charset fsEncoding) {
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
41 decoder = fsEncoding.newDecoder();
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
42 encoder = fsEncoding.newEncoder();
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
43 }
320
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
44
412
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
45 public String fromManifest(byte[] data, int start, int length) {
320
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
46 try {
412
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
47 return decoder.decode(ByteBuffer.wrap(data, start, length)).toString();
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
48 } catch (CharacterCodingException ex) {
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
49 // resort to system-default
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
50 return new String(data, start, length);
320
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
51 }
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
52 }
412
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
53
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
54 public String fromDirstate(byte[] data, int start, int length) throws CharacterCodingException {
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
55 return decoder.decode(ByteBuffer.wrap(data, start, length)).toString();
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
56 }
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
57
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
58 public Charset charset() {
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
59 return encoder.charset();
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 321
diff changeset
60 }
320
678e326fd27c Issue 15: Exception accessing oddly named file from history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
61 }