blob: 56d057462706ae84d0e4f9b0f368a8fa565558ec (
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
|
/*****************************************************************************
* Copyright (c) 2004 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
****************************************************************************/
package org.eclipse.wst.css.ui.internal.text;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.Region;
import org.eclipse.jface.text.source.ICharacterPairMatcher;
import org.eclipse.wst.css.core.internal.parserz.CSSRegionContexts;
import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocument;
import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion;
public class CSSDocumentRegionEdgeMatcher implements ICharacterPairMatcher {
private int fAnchor = ICharacterPairMatcher.LEFT;
/**
* @param validContexts
* @param nextMatcher
*/
public CSSDocumentRegionEdgeMatcher() {
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.text.source.ICharacterPairMatcher#clear()
*/
public void clear() {
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.text.source.ICharacterPairMatcher#dispose()
*/
public void dispose() {
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.text.source.ICharacterPairMatcher#getAnchor()
*/
public int getAnchor() {
return fAnchor;
}
public IRegion match(IDocument document, int offset) {
if (document instanceof IStructuredDocument) {
IStructuredDocumentRegion r = ((IStructuredDocument) document).getRegionAtCharacterOffset(offset);
if (r != null) {
if (r.getPrevious() != null && r.getStartOffset() == offset && r.getPrevious().getType().equals(CSSRegionContexts.CSS_RBRACE)) {
r = r.getPrevious();
}
if (r.getType().equals(CSSRegionContexts.CSS_RBRACE)) {
while (r != null && !r.getType().equals(CSSRegionContexts.CSS_LBRACE)) {
r = r.getPrevious();
}
if (r != null) {
return new Region(r.getStartOffset(), 1);
}
} else if (r.getType().equals(CSSRegionContexts.CSS_LBRACE)) {
while (r != null && !r.getType().equals(CSSRegionContexts.CSS_RBRACE)) {
r = r.getNext();
}
if (r != null) {
return new Region(r.getEndOffset() - 1, 1);
}
}
}
}
return null;
}
}
|
