handlerbase.java

cssparser -- CSS 的语法解析器。采用java语言编写。可用在服务端生成页面。

/*
 * HandlerBase.java
 *
 * Steady State CSS2 Parser
 *
 * Copyright (C) 1999, 2002 Steady State Software Ltd.  All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * To contact the authors of the library, write to Steady State Software Ltd.,
 * 49 Littleworth, Wing, Buckinghamshire, LU7 0JX, England
 *
 * http://www.steadystate.com/css/
 * mailto:[e-mail]
 *
 * $Id: HandlerBase.java,v 1.1.1.1 2003/12/28 21:23:05 davidsch Exp $
 */

package com.steadystate.css.parser;

import org.w3c.css.sac.*;

public class HandlerBase implements DocumentHandler, ErrorHandler {

    public void startDocument(InputSource source)
        throws CSSException {
    }
    
    public void endDocument(InputSource source) throws CSSException {
    }

    public void comment(String text) throws CSSException {
    }

    public void ignorableAtRule(String atRule) throws CSSException {
    }

    public void namespaceDeclaration(String prefix, String uri)
	    throws CSSException {
    }

    public void importStyle(String uri, SACMediaList media, 
			String defaultNamespaceURI)
	    throws CSSException {
    }

    public void startMedia(SACMediaList media) throws CSSException {
    }

    public void endMedia(SACMediaList media) throws CSSException {
    }

    public void startPage(String name, String pseudo_page) throws CSSException {
    }

    public void endPage(String name, String pseudo_page) throws CSSException {
    }

    public void startFontFace() throws CSSException {
    }

    public void endFontFace() throws CSSException {
    }

    public void startSelector(SelectorList selectors) throws CSSException {
    }

    public void endSelector(SelectorList selectors) throws CSSException {
    }

    public void property(String name, LexicalUnit value, boolean important)
        throws CSSException {
    }

    public void warning(CSSParseException exception) throws CSSException {
        StringBuffer sb = new StringBuffer();
        sb.append(exception.getURI())
            .append(" [")
            .append(exception.getLineNumber())
            .append(":")
            .append(exception.getColumnNumber())
            .append("] ")
            .append(exception.getMessage());
        System.err.println(sb.toString());
    }

    public void error(CSSParseException exception) throws CSSException {
        StringBuffer sb = new StringBuffer();
        sb.append(exception.getURI())
            .append(" [")
            .append(exception.getLineNumber())
            .append(":")
            .append(exception.getColumnNumber())
            .append("] ")
            .append(exception.getMessage());
        System.err.println(sb.toString());
    }

    public void fatalError(CSSParseException exception) throws CSSException {
        StringBuffer sb = new StringBuffer();
        sb.append(exception.getURI())
            .append(" [")
            .append(exception.getLineNumber())
            .append(":")
            .append(exception.getColumnNumber())
            .append("] ")
            .append(exception.getMessage());
        System.err.println(sb.toString());
    }
}