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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
/* $Id: DSCHandler.java 1345683 2012-06-03 14:50:33Z gadams $ */
package org.apache.xmlgraphics.ps.dsc;
import java.io.IOException;
import org.apache.xmlgraphics.ps.dsc.events.DSCComment;
/**
* Interface containing events generated by the DSCParser. Applications can implement this
* interface to react to certain events.
*/
public interface DSCHandler {
/**
* Called as a new PostScript file starts.
* @param header the first line of the DSC-compliant file
* @throws IOException In case of an I/O error
*/
void startDocument(String header) throws IOException;
/**
* Called when the PostScript file is fully processed, i.e. after the %%EOF comment.
* @throws IOException In case of an I/O error
*/
void endDocument() throws IOException;
/**
* Called for each standard DSC comment. The classes passed to this method may be simple
* DSCComment classes or special subclasses for some of the DSC comments.
* @param comment the DSC comment
* @throws IOException In case of an I/O error
*/
void handleDSCComment(DSCComment comment) throws IOException;
/**
* Called for a normal line of PostScript code.
* @param line the line of code
* @throws IOException In case of an I/O error
*/
void line(String line) throws IOException;
/**
* Called for any line containing a full-line PostScript comment. This is also called for
* custom comments following the extension mechanism of the DSC specification.
* @param comment the comment line
* @throws IOException In case of an I/O error
*/
void comment(String comment) throws IOException;
}
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