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/*******************************************************************************
* Copyright (c) 2010, 2011 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.equinox.bidi.internal.consumable;
import org.eclipse.equinox.bidi.STextEngine;
import org.eclipse.equinox.bidi.STextEnvironment;
import org.eclipse.equinox.bidi.custom.STextProcessor;
import org.eclipse.equinox.bidi.internal.STextDelimsEsc;
/**
* Processor adapted to processing e-mail addresses.
*/
public class STextEmail extends STextDelimsEsc {
static final byte L = Character.DIRECTIONALITY_LEFT_TO_RIGHT;
static final byte R = Character.DIRECTIONALITY_RIGHT_TO_LEFT;
static final byte AL = Character.DIRECTIONALITY_RIGHT_TO_LEFT_ARABIC;
public STextEmail() {
super("<>.:,;@"); //$NON-NLS-1$
}
/**
* @return {@link STextEngine#DIR_RTL DIR_RTL} if the following
* conditions are satisfied:
* <ul>
* <li>The current locale (as expressed by the environment
* language) is Arabic.</li>
* <li>The domain part of the email address contains
* at least one RTL character.</li>
* </ul>
* Otherwise, returns {@link STextEngine#DIR_LTR DIR_LTR}.
*/
public int getDirection(STextEnvironment environment, String text, byte[] dirProps) {
String language = environment.getLanguage();
if (!language.equals("ar")) //$NON-NLS-1$
return STextEngine.DIR_LTR;
int domainStart;
domainStart = text.indexOf('@');
if (domainStart < 0)
domainStart = 0;
for (int i = domainStart; i < text.length(); i++) {
byte dirProp = STextProcessor.getDirProp(text, dirProps, i);
if (dirProp == AL || dirProp == R)
return STextEngine.DIR_RTL;
}
return STextEngine.DIR_LTR;
}
/**
* @return 2 as number of special cases handled by this processor.
*/
public int getSpecialsCount(STextEnvironment environment, String text, byte[] dirProps) {
return 2;
}
/**
* @return parentheses and quotation marks as delimiters.
*/
protected String getDelimiters() {
return "()\"\""; //$NON-NLS-1$
}
}
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