blob: b8aef023222aeeafc45b80b58c92d27250fea465 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
|
/*******************************************************************************
* Copyright (c) 2009, 2016 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.help.internal.index;
import org.eclipse.help.IIndexSee;
import org.eclipse.help.IIndexSubpath;
import org.eclipse.help.internal.UAElement;
import org.w3c.dom.Element;
import com.ibm.icu.text.Collator;
public class IndexSee extends UAElement implements IIndexSee, Comparable<Object> {
public static final String NAME = "see"; //$NON-NLS-1$
public static final String ATTRIBUTE_KEYWORD = "keyword"; //$NON-NLS-1$
public IndexSee(Element src) {
super(src);
}
public IndexSee(IIndexSee src) {
super(NAME, src);
setKeyword(src.getKeyword());
appendChildren(src.getChildren());
}
@Override
public String getKeyword() {
return getAttribute(ATTRIBUTE_KEYWORD);
}
private String[] getPath() {
IIndexSubpath[] subpaths = getSubpathElements();
String[] result = new String[1 + subpaths.length];
result[0] = getKeyword();
for (int i = 0; i < subpaths.length; i++) {
result[i + 1] = subpaths[i].getKeyword();
}
return result;
}
public void setKeyword(String keyword) {
setAttribute(ATTRIBUTE_KEYWORD, keyword);
}
private int getCategory(String keyword) {
if (keyword != null && keyword.length() > 0) {
char c = keyword.charAt(0);
if (Character.isDigit(c)) {
return 2;
}
else if (Character.isLetter(c)) {
return 3;
}
return 1;
}
return 4;
}
@Override
public int compareTo(Object arg0) {
Collator collator = Collator.getInstance();
if (arg0 instanceof IndexSee) {
String[] path = getPath();
String[] targetPath = ((IndexSee)arg0).getPath();
for (int i = 0; i < path.length; i++) {
if (i >= targetPath.length) {
return 1;
}
if (getCategory(path[i]) != getCategory(targetPath[i])) {
return getCategory(path[i]) - getCategory(targetPath[i]);
}
int result = collator.compare(path[i], targetPath[i]);
if (result != 0) {
return result;
}
}
return path.length - targetPath.length;
}
return 0;
}
@Override
public boolean equals(Object obj) {
return obj instanceof IndexSee && compareTo(obj) == 0;
}
@Override
public int hashCode() {
int result = getKeyword().hashCode();
IIndexSubpath[] subpaths = getSubpathElements();
for (int i = 0; i < subpaths.length; i++) {
result += subpaths[i].getKeyword().hashCode();
}
return result;
}
@Override
public boolean isSeeAlso() {
UAElement parentElement = getParentElement();
return ! (parentElement.getChildren()[0] instanceof IIndexSee);
}
@Override
public IIndexSubpath[] getSubpathElements() {
return getChildren(IIndexSubpath.class);
}
}
|
