Mercurial > hg4j

annotate src/org/tmatesoft/hg/internal/ConfigFileParser.java @ 497:02140be396d5

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 25 Oct 2012 19:59:08 +0200
parents
children 0205a5c4566b
rev   line source
497
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
1 /*
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
2 * Copyright (c) 2012 TMate Software Ltd
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
3 *
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
4 * This program is free software; you can redistribute it and/or modify
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
5 * it under the terms of the GNU General Public License as published by
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
6 * the Free Software Foundation; version 2 of the License.
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
7 *
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
8 * This program is distributed in the hope that it will be useful,
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
11 * GNU General Public License for more details.
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
12 *
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
13 * For information on how to redistribute this software under
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
14 * the terms of a license other than GNU General Public License
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
15 * contact TMate Software at support@hg4j.com
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
16 */
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
17 package org.tmatesoft.hg.internal;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
18
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
19 import java.io.ByteArrayInputStream;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
20 import java.io.ByteArrayOutputStream;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
21 import java.io.IOException;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
22 import java.io.InputStream;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
23 import java.io.OutputStream;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
24 import java.util.ArrayList;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
25 import java.util.Collections;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
26 import java.util.HashSet;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
27 import java.util.Iterator;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
28 import java.util.LinkedHashMap;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
29 import java.util.LinkedHashSet;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
30 import java.util.List;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
31
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
32 /**
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
33 * Simplistic parser to allow altering configuration files without touching user modifications/formatting/comments
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
34 *
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
35 * @author Artem Tikhomirov
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
36 * @author TMate Software Ltd.
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
37 */
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
38 public class ConfigFileParser {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
39 private enum ParseState {Initial, Section, Entry};
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
40 private ParseState state = ParseState.Initial;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
41 private int lastNonEmptyLineEndOffset = -1;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
42 private String sectionName;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
43 private int sectionStart = -1;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
44 private String entryKey;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
45 private int entryStart = -1;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
46 private int valueStart = -1, valueEnd = -1;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
47 private ArrayList<Entry> entries;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
48 private ArrayList<Section> sections = new ArrayList<Section>();
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
49 private byte[] contents;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
50
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
51 private List<String> deletions = new ArrayList<String>(5);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
52 private List<String> additions = new ArrayList<String>(5), changes = new ArrayList<String>(5);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
53
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
54
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
55 public boolean exists(String section, String key) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
56 assert contents != null;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
57 for (Section s : sections) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
58 if (s.name.equals(section)) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
59 for (Entry e : s.entries) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
60 if (e.name.equals(key)) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
61 return true;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
62 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
63 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
64 return false;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
65 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
66 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
67 return false;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
68 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
69
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
70 public void add(String section, String key, String newValue) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
71 additions.add(section);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
72 additions.add(key);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
73 additions.add(newValue);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
74 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
75
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
76 public void change(String section, String key, String newValue) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
77 changes.add(section);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
78 changes.add(key);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
79 changes.add(newValue);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
80 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
81
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
82 public void delete(String section, String key) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
83 deletions.add(section);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
84 deletions.add(key);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
85 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
86
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
87 public void parse(InputStream is) throws IOException {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
88 state = ParseState.Initial;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
89 sections.clear();
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
90 contents = null;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
91 ByteArrayOutputStream bos = new ByteArrayOutputStream(1024);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
92 ByteArrayOutputStream line = new ByteArrayOutputStream(80);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
93 int offset = 0;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
94 int lineOffset = -1;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
95 int lineNumber = 1;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
96 boolean crDetected = false; // true when previous char was \r
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
97 int b;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
98 while ( (b = is.read()) != -1) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
99 bos.write(b);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
100 if (b == '\n' || b == '\r') {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
101 if (line.size() > 0) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
102 processLine(lineNumber, lineOffset, line.toByteArray());
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
103 line.reset();
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
104 lineOffset = -1;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
105 lastNonEmptyLineEndOffset = bos.size() - 1; // offset points to EOL char
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
106 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
107 // else: XXX does empty line closes entry???
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
108 // when \n follows \r, increment line count only once
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
109 if (!(b == '\n' && crDetected)) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
110 lineNumber++;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
111 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
112 crDetected = b == '\r';
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
113 } else {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
114 crDetected = false;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
115 if (line.size() == 0) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
116 lineOffset = offset;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
117 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
118 line.write(b);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
119 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
120 offset++;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
121 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
122 // handle last line in case it's not EOL-terminated
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
123 if (line.size() > 0) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
124 processLine(lineNumber, lineOffset, line.toByteArray());
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
125 // might need it for #closeSection() below
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
126 lastNonEmptyLineEndOffset = bos.size();
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
127 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
128 if (state == ParseState.Entry) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
129 closeEntry();
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
130 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
131 if (state == ParseState.Section) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
132 closeSection();
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
133 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
134 contents = bos.toByteArray();
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
135 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
136
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
137 public void update(OutputStream out) throws IOException {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
138 if (contents == null) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
139 throw new IOException("Shall parse first");
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
140 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
141 HashSet<String> processedSections = new HashSet<String>();
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
142 int contentsOffset = 0;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
143 for (Section section : sections) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
144 LinkedHashMap<String,String> additionsInSection = new LinkedHashMap<String,String>();
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
145 LinkedHashMap<String,String> changesInSection = new LinkedHashMap<String,String>();
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
146 LinkedHashSet<String> deletionsInSection = new LinkedHashSet<String>();
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
147 if (!processedSections.contains(section.name)) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
148 for (Iterator<String> it = additions.iterator(); it.hasNext();) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
149 String s = it.next(), k = it.next(), v = it.next();
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
150 if (section.name.equals(s)) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
151 additionsInSection.put(k, v);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
152 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
153 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
154 for (Iterator<String> it = changes.iterator(); it.hasNext();) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
155 String s = it.next(), k = it.next(), v = it.next();
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
156 if (section.name.equals(s)) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
157 changesInSection.put(k, v);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
158 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
159 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
160 for (Iterator<String> it = deletions.iterator(); it.hasNext();) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
161 String s = it.next(), k = it.next();
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
162 if (section.name.equals(s)) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
163 deletionsInSection.add(k);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
164 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
165 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
166 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
167 for (Entry e : section.entries) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
168 if (deletionsInSection.contains(e.name)) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
169 // write up to key start only
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
170 out.write(contents, contentsOffset, e.start - contentsOffset);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
171 contentsOffset = e.valueEnd + 1;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
172 } else if (changesInSection.containsKey(e.name)) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
173 if (e.valueStart == -1) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
174 // e.valueEnd determines insertion point
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
175 out.write(contents, contentsOffset, e.valueEnd + 1 - contentsOffset);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
176 } else {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
177 // e.valueEnd points to last character of the value
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
178 out.write(contents, contentsOffset, e.valueStart - contentsOffset);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
179 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
180 String value = changesInSection.get(e.name);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
181 out.write(value == null ? new byte[0] : value.getBytes());
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
182 contentsOffset = e.valueEnd + 1;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
183 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
184 // else: keep contentsOffset to point to first uncopied character
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
185 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
186 if (section.entries.length == 0) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
187 // no entries, empty or only comments, perhaps.
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
188 // use end of last meaningful line (whether [section] or comment string),
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
189 // which points to newline character
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
190 out.write(contents, contentsOffset, section.end - contentsOffset);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
191 contentsOffset = section.end;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
192 // since it's tricky to track \n or \r\n with lastNonEmptyLineEndOffset,
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
193 // we copy up to the line delimiter and insert new lines, if any, with \n prepended,
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
194 // so that original EOL will be moved to the very end of the section.
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
195 // Indeed, would be better to insert *after* lastNonEmptyLineEndOffset,
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
196 // but I don't want to complicate #parse (if line.size() > 0 part) method.
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
197 // Hope, this won't make too much trouble (if any, at all -
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
198 // if String.format translates \n to system EOL, then nobody would notice)
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
199 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
200 if (!additionsInSection.isEmpty()) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
201 // make sure additions are written once everything else is there
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
202 out.write(contents, contentsOffset, section.end - contentsOffset);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
203 contentsOffset = section.end;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
204 for (String k : additionsInSection.keySet()) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
205 String v = additionsInSection.get(k);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
206 out.write(String.format("\n%s = %s", k, v == null ? "" : v).getBytes());
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
207 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
208 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
209 // if section comes more than once, update only first one.
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
210 processedSections.add(section.name);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
211 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
212 out.write(contents, contentsOffset, contents.length - contentsOffset);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
213 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
214
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
215 private void processLine(int lineNumber, int offset, byte[] line) throws IOException {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
216 int localOffset = 0, i = 0;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
217 while (i < line.length && Character.isWhitespace(line[i])) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
218 i++;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
219 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
220 if (i == line.length) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
221 return;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
222 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
223 localOffset = i;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
224 if (line[i] == '[') {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
225 if (state == ParseState.Entry) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
226 closeEntry();
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
227 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
228 if (state == ParseState.Section) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
229 closeSection();
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
230 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
231
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
232 while (i < line.length && line[i] != ']') {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
233 i++;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
234 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
235 if (i == line.length) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
236 throw new IOException(String.format("Can't find closing ']' for section name in line %d", lineNumber));
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
237 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
238 sectionName = new String(line, localOffset+1, i-localOffset-1);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
239 sectionStart = offset + localOffset;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
240 state = ParseState.Section;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
241 } else if (line[i] == '#' || line[i] == ';') {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
242 // comment line, nothing to process
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
243 return;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
244 } else {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
245 // entry
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
246 if (state == ParseState.Initial) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
247 throw new IOException(String.format("Line %d doesn't belong to any section", lineNumber));
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
248 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
249 if (localOffset > 0) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
250 if (state == ParseState.Section) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
251 throw new IOException(String.format("Non-indented key is expected in line %d", lineNumber));
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
252 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
253 assert state == ParseState.Entry;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
254 // whitespace-indented continuation of the previous entry
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
255 if (valueStart == -1) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
256 // value didn't start at the same line the key was found at
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
257 valueStart = offset + localOffset;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
258 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
259 // value ends with eol (assumption is trailing comments are not allowed)
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
260 valueEnd = offset + line.length - 1;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
261 } else {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
262 if (state == ParseState.Entry) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
263 closeEntry();
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
264 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
265 assert state == ParseState.Section;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
266 // it's a new entry
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
267 state = ParseState.Entry;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
268 // get name of the entry
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
269 while (i < line.length && !Character.isWhitespace(line[i]) && line[i] != '=') {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
270 i++;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
271 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
272 if (i == line.length) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
273 throw new IOException(String.format("Can't process entry in line %d", lineNumber));
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
274 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
275 entryKey = new String(line, localOffset, i - localOffset);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
276 entryStart = offset + localOffset;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
277 // look for '=' after key name
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
278 while (i < line.length && line[i] != '=') {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
279 i++;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
280 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
281 if (i == line.length) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
282 throw new IOException(String.format("Can't find '=' after key %s in line %d", entryKey, lineNumber));
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
283 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
284 // skip whitespaces after '='
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
285 i++; // line[i] == '='
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
286 while (i < line.length && Character.isWhitespace(line[i])) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
287 i++;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
288 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
289 // valueStart might be -1 in case no value is specified in the same line as key
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
290 // but valueEnd is always initialized just in case there's no next, value continuation line
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
291 if (i == line.length) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
292 valueStart = -1;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
293 } else {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
294 valueStart = offset + i;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
295 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
296
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
297 // if trailing comments are allowed, shall
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
298 // look up comment char and set valueEnd to its position-1
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
299 valueEnd = offset + line.length - 1;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
300 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
301 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
302 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
303
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
304 private void closeSection() {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
305 assert state == ParseState.Section;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
306 assert sectionName != null;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
307 assert lastNonEmptyLineEndOffset != -1;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
308 Section s = new Section(sectionName, sectionStart, lastNonEmptyLineEndOffset, entries == null ? Collections.<Entry>emptyList() : entries);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
309 sections.add(s);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
310 sectionName = null;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
311 sectionStart = -1;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
312 state = ParseState.Initial;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
313 entries = null;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
314 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
315
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
316 private void closeEntry() {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
317 assert state == ParseState.Entry;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
318 assert entryKey != null;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
319 state = ParseState.Section;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
320 Entry e = new Entry(entryKey, entryStart, valueStart, valueEnd);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
321 if (entries == null) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
322 entries = new ArrayList<Entry>();
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
323 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
324 entries.add(e);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
325 entryKey = null;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
326 entryStart = valueStart = valueEnd -1;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
327 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
328
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
329
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
330 private static class Block {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
331 public final int start;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
332 Block(int s) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
333 start = s;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
334 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
335 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
336
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
337 private static class Entry extends Block {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
338 public final int valueStart, valueEnd;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
339 public final String name;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
340
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
341 Entry(String n, int s, int vs, int ve) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
342 super(s);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
343 name = n;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
344 valueStart = vs;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
345 valueEnd = ve;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
346 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
347 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
348
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
349 private static class Section extends Block {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
350 public final String name;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
351 public final Entry[] entries;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
352 public final int end;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
353
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
354 Section(String n, int s, int endOffset, List<Entry> e) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
355 super(s);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
356 name = n;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
357 end = endOffset;
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
358 entries = new Entry[e.size()];
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
359 e.toArray(entries);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
360 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
361 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
362
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
363 public static void main(String[] args) throws Exception {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
364 ConfigFileParser p = new ConfigFileParser();
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
365 p.parse(new ByteArrayInputStream(xx.getBytes()));
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
366 System.out.println(">>>");
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
367 System.out.println(xx);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
368 System.out.println("===");
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
369 p.add("sect1", "key5", "x");
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
370 ByteArrayOutputStream out = new ByteArrayOutputStream(xx.length());
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
371 p.update(out);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
372 System.out.println(new String(out.toByteArray()));
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
373 /*
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
374 for (Section s : p.sections) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
375 System.out.printf("[%s@%d]\n", s.name, s.start);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
376 for (Entry e : s.entries) {
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
377 System.out.printf("%s@%d = %d..%d\n", e.name, e.start, e.valueStart, e.valueEnd);
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
378 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
379 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
380 */
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
381 }
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
382 private static final String xx = "#comment1\n [sect1]\nkey = value #not a comment2\n#comment3\nkey2= \nkey3 = \n value1, #cc\n value2\nkey4 = v1,\n v2 \n ,v3\n\n\n[sect2]\nx = a";
02140be396d5 Issue 38. Towards gentle handling of config files - parse them and keep every possible user change
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
383 }