blob: a191b2e966111e39b122efc7f9f8ef72303ea74f (
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
|
/*******************************************************************************
* Copyright (c) 2001, 2005 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
* Jens Lukowski/Innoopract - initial renaming/restructuring
*
*******************************************************************************/
package org.eclipse.wst.dtd.core.internal.text;
import java.util.NoSuchElementException;
import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion;
import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegion;
import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegionList;
public class RegionIterator {
private int currentIndex;
// private IStructuredDocumentRegion flatNode;
private ITextRegionList regions;
// private int startOffset, endOffset;
private ITextRegion startRegion, endRegion;
public RegionIterator(IStructuredDocumentRegion node) {
this(node, node.getStart(), node.getEnd());
}
public RegionIterator(IStructuredDocumentRegion node, int startOffset, int endOffset) {
regions = node.getRegions();
startRegion = node.getRegionAtCharacterOffset(startOffset);
endRegion = node.getRegionAtCharacterOffset(endOffset - 1);
for (int i = 0; i < regions.size(); i++) {
ITextRegion region = regions.get(i);
if (startRegion == region) {
currentIndex = i;
break;
}
}
}
public RegionIterator(ITextRegionList regions) {
this.regions = regions;
startRegion = regions.get(0);
endRegion = regions.get(regions.size() - 1);
currentIndex = 0;
// this(node, node.getStart(), node.getEnd());
}
public boolean hasNext() {
if (currentIndex < regions.size()) {
return currentIndex <= regions.indexOf(endRegion);
}
return false;
}
public boolean hasPrevious() {
if (currentIndex >= 0) {
return currentIndex >= regions.indexOf(startRegion);
}
return false;
}
public ITextRegion next() {
if (hasNext()) {
return regions.get(currentIndex++);
}
throw new NoSuchElementException();
}
public ITextRegion previous() {
if (hasPrevious()) {
return regions.get(--currentIndex);
}
throw new NoSuchElementException();
}
}
|
