XMLPartitionScanner.java

// ============================================================================
//
// Copyright (C) 2006-2016 Talend Inc. - www.talend.com
//
// This source code is available under agreement available at
// %InstallDIR%\features\org.talend.rcp.branding.%PRODUCTNAME%\%PRODUCTNAME%license.txt
//
// You should have received a copy of the agreement
// along with this program; if not, write to Talend SA
// 9 rue Pages 92150 Suresnes, France
//
// ============================================================================
package com.amalto.workbench.editors.xmleditor;

import org.eclipse.jface.text.rules.ICharacterScanner;
import org.eclipse.jface.text.rules.IPredicateRule;
import org.eclipse.jface.text.rules.IRule;
import org.eclipse.jface.text.rules.IToken;
import org.eclipse.jface.text.rules.MultiLineRule;
import org.eclipse.jface.text.rules.RuleBasedPartitionScanner;
import org.eclipse.jface.text.rules.Token;

public class XMLPartitionScanner extends RuleBasedPartitionScanner {

    public final static String XML_COMMENT = "__xml_comment";//$NON-NLS-1$

    public final static String XML_TAG = "__xml_tag";//$NON-NLS-1$

    public XMLPartitionScanner() {

        IToken xmlComment = new Token(XML_COMMENT);
        IToken tag = new Token(XML_TAG);

        IPredicateRule[] rules = new IPredicateRule[2];

        rules[0] = new MultiLineRule("<!--", "-->", xmlComment);//$NON-NLS-1$//$NON-NLS-2$
        rules[1] = new TagRule(tag);
        // WhitespaceRule whiteRule = new WhitespaceRule(new WhitespaceDetector());
        setPredicateRules(rules);
    }
}

class FormatRule implements IRule {

    private final IToken token;

    public FormatRule(IToken token) {
        this.token = token;
    }

    public IToken evaluate(ICharacterScanner scanner) {
        int c = scanner.read();
        if (c == '%') {
            do {
                c = scanner.read();
            } while (c != ICharacterScanner.EOF && (Character.isLetterOrDigit((char) c) || c == '-' || c == '.'));
            scanner.unread();

            return token;
        }
        scanner.unread();
        return Token.UNDEFINED;
    }

}