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/*******************************************************************************
* Copyright (c) 2004, 2007 Boeing.
* 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:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.framework.jdk.core.text.rules;
import java.io.File;
import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.eclipse.osee.framework.jdk.core.text.Rule;
import org.eclipse.osee.framework.jdk.core.text.change.ChangeSet;
/**
* This rule is to be used on html files. It adds error handling so that unsupported java scripting calls do not result
* in pesky windows being shown to the user. For example, when javadoc produced API's are viewed through the eclipse
* help system and the javadoc attempts to set the title of the parent.
*
* @author Robert A. Fisher
*/
public class HushHtmlScriptErrors extends Rule {
// This is the code that must be entered in to the HTML to hush script errors
private final static String HUSH =
"\nfunction handleError() {\n" + "return true;\n" + "}\n\n" + "window.onerror = handleError;\n";
public HushHtmlScriptErrors() {
super(null);
}
public ChangeSet computeChanges(CharSequence seq) {
Pattern detectHusherInPlace = Pattern.compile("function handleError");
Pattern findJavaScriptArea = Pattern.compile("<SCRIPT type=\"text/javascript\">");
ChangeSet changeSet = new ChangeSet(seq);
// Only add in hushing if it is not in place
Matcher matchHusher = detectHusherInPlace.matcher(seq);
if (!matchHusher.find()) {
Matcher matcher = findJavaScriptArea.matcher(seq);
if (matcher.find()) {
ruleWasApplicable = true;
changeSet.insertBefore(matcher.end() + 1, HUSH);
}
}
return changeSet;
}
public static void main(String[] args) {
HushHtmlScriptErrors hushRule = new HushHtmlScriptErrors();
for (int i = 0; i < args.length; i++) {
try {
System.out.print("File " + (i + 1) + "/" + (args.length) + ":");
hushRule.process(new File(args[i]));
} catch (Exception ex) {
System.out.println("Exception in Rule!!! " + hushRule.getCurrentOutfileName() + ": " + ex.getMessage());
ex.printStackTrace();
}
}
System.out.println("Finished");
}
/*
* (non-Javadoc)
* @see org.eclipse.osee.framework.jdk.core.text.Rule#process(java.io.File, java.io.File)
*/
public void process(File inFile, File outFile) throws IOException {
//Filter files being processed by this to only be of type .html
if (inFile.getName().endsWith(".html")) super.process(inFile, outFile);
}
}
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