Groovy example source code file (StructuredSyntaxHandler.java)

This example Groovy source code file (StructuredSyntaxHandler.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Groovy tags/keywords

align_center, align_center, align_justified, align_justified, align_left, align_right, awt, left_indent, right_indent, sax, saxexception, saxexception, string, string, structuredsyntaxhandler, underline

The Groovy StructuredSyntaxHandler.java source code

/*
 * Copyright 2003-2007 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package groovy.ui.text;

import java.awt.Font;

import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;

import org.xml.sax.helpers.DefaultHandler;

/**
 * @author Evan "Hippy" Slatis
 */
public class StructuredSyntaxHandler extends DefaultHandler {

    //StyleConstants.
    public static final String REGEXP = "regexp";
    public static final String STYLE = "style";

    public static final String ALIGN_CENTER = "ALIGN_CENTER";
    public static final String ALIGN_JUSTIFIED = "ALIGN_JUSTIFIED";
    public static final String ALIGN_LEFT = "ALIGN_LEFT";
    public static final String ALIGN_RIGHT = "ALIGN_RIGHT";

    public static final String ALIGNMENT = "alignment";
    public static final String BACKGROUND = "background";
    public static final String BIDI_LEVEL = "bidiLevel";
    public static final String BOLD = "bold";
    public static final String COMPONENT_ATTRIBUTE = "componentAttribute";
    public static final String COMPONENT_ELEMENT_NAME = "componentElementName";
    public static final String COMPOSED_TEXT_ATTRIBUTE = "composedTextAttribute";
    public static final String FIRST_LINE_INDENT = "firstLineIndent";
    public static final String FONT_FAMILY = "fontFamily";
    public static final String FONT_SIZE = "fontSize";
    public static final String FOREGROUND = "foreground";
    public static final String ICON_ATTRIBUTE = "iconAttribute";
    public static final String ICON_ELEMENT_NAME = "iconElementName";
    public static final String ITALIC = "italic";
    public static final String LEFT_INDENT = "leftIndent";
    public static final String LINE_SPACING = "lineSpacing";
    public static final String MODEL_ATTRIBUTE = "modelAttribute";
    public static final String NAME_ATTRIBUTE = "nameAttribute";
    public static final String ORIENTATION = "orientation";
    public static final String RESOLVE_ATTRIBUTE = "resolveAttribute";
    public static final String RIGHT_INDENT = "rightIndent";
    public static final String SPACE_ABOVE = "spaceAbove";
    public static final String SPACE_BELOW = "spaceBelow";
    public static final String STRIKE_THROUGH = "strikeThrough";
    public static final String SUBSCRIPT = "subscript";
    public static final String SUPERSCRIPT = "superscript";
    public static final String TAB_SET = "tabSet";
    public static final String UNDERLINE = "underline";

    private StructuredSyntaxDocumentFilter.LexerNode currentNode;
    private StructuredSyntaxDocumentFilter.LexerNode parentNode;

    private final StructuredSyntaxDocumentFilter filter;

    private Font font;

    /**
     * Creates a new instance of MasterFrameHandler
     *
     * @param filter
     */
    public StructuredSyntaxHandler(StructuredSyntaxDocumentFilter filter) {
        this.filter = filter;
    }

    /**
     * @param ch
     * @param start
     * @param length
     */
    public void characters(char[] ch, int start, int length) {
    }

    /**
     * @throws SAXException
     */
    public void endDocument() throws SAXException {
        super.endDocument();
    }

    /**
     * @param uri
     * @param localName
     * @param qName
     * @throws SAXException
     */
    public void endElement(String uri,
                           String localName,
                           String qName) throws SAXException {
    }

    /**
     * @param e
     * @throws SAXException
     */
    public void error(SAXParseException e) throws SAXException {
        throw new SAXException("Line: " + e.getLineNumber() + " message: " + e.getMessage());
    }

    /**
     * @throws SAXException
     */
    public void startDocument() throws SAXException {
        super.startDocument();
        currentNode = filter.getRootNode();
    }

    /**
     * @param uri
     * @param localName
     * @param qName
     * @param attributes
     * @throws SAXException
     */
    public void startElement(String uri,
                             String localName,
                             String qName,
                             Attributes attributes) throws SAXException {
        super.startElement(uri, localName, qName, attributes);
    }
}