blob: b09d53b110cacd365e4f5163363c785a7036e3d0 (
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
|
/*******************************************************************************
* Copyright (c) 2006 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.help.internal.xhtml;
import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;
import org.eclipse.core.runtime.QualifiedName;
import org.eclipse.core.runtime.content.IContentDescriber;
import org.eclipse.core.runtime.content.IContentDescription;
import org.eclipse.help.internal.search.ASCIIReader;
/**
* A content describer for XHTML.
*/
public class XHTMLContentDescriber implements IContentDescriber {
private static final String XHTML_DTD_PREFIX = "http://www.w3.org/TR/xhtml"; //$NON-NLS-1$
public static final int BUFFER_SIZE = 4096;
/* (non-Javadoc)
* @see org.eclipse.core.runtime.content.IContentDescriber#describe(java.io.InputStream, org.eclipse.core.runtime.content.IContentDescription)
*/
public int describe(InputStream contents, IContentDescription description) throws IOException {
Reader reader = null;
try {
reader = new ASCIIReader(contents, BUFFER_SIZE);
char[] chars = new char[BUFFER_SIZE];
reader.read(chars);
String str = new String(chars);
return (str.indexOf(XHTML_DTD_PREFIX) != -1) ? VALID : INVALID;
}
catch (Exception e) {
return INDETERMINATE;
}
finally {
if (reader != null) {
try {
reader.close();
}
catch (IOException e) {
}
}
}
}
/* (non-Javadoc)
* @see org.eclipse.core.runtime.content.IContentDescriber#getSupportedOptions()
*/
public QualifiedName[] getSupportedOptions() {
return new QualifiedName[0];
}
}
|
