| package org.apache.maven.doxia.module.confluence.parser; |
| |
| /* |
| * 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. |
| */ |
| |
| import org.apache.maven.doxia.parser.ParseException; |
| import org.apache.maven.doxia.util.ByLineSource; |
| |
| /** |
| * <p>FigureBlockParser class.</p> |
| * |
| * @version $Id$ |
| * @since 1.1 |
| */ |
| public class FigureBlockParser |
| implements BlockParser |
| { |
| /** {@inheritDoc} */ |
| public boolean accept( String line, ByLineSource source ) |
| { |
| return line.startsWith( "!" ) && line.lastIndexOf( "!" ) > 1; |
| } |
| |
| /** {@inheritDoc} */ |
| public Block visit( String line, ByLineSource source ) |
| throws ParseException |
| { |
| String image = line.substring( 1, line.lastIndexOf( "!" ) ); |
| if ( image.contains( "|" ) ) |
| { |
| // DOXIA-303: handle figure attributes |
| image = image.substring( 0, image.indexOf( "|" ) ); |
| } |
| |
| line = line.substring( line.lastIndexOf( "!" ) + 1 ).trim(); |
| |
| if ( line.startsWith( "\\\\" ) ) |
| { |
| // ignore linebreak at start of caption |
| line = line.substring( 2 ); |
| } |
| |
| String caption = line + appendUntilEmptyLine( source ); |
| |
| if ( caption.trim().length() > 0 ) |
| { |
| return new FigureBlock( image, caption ); |
| } |
| |
| return new FigureBlock( image ); |
| } |
| |
| /** |
| * Slurp lines from the source starting with the given line appending them together into a StringBuilder until an |
| * empty line is reached, and while the source contains more lines. |
| * |
| * @param source the source to read new lines from |
| * @return a StringBuilder appended with lines |
| * @throws ParseException |
| */ |
| private String appendUntilEmptyLine( ByLineSource source ) |
| throws ParseException |
| { |
| StringBuilder text = new StringBuilder(); |
| |
| String line; |
| |
| while ( ( line = source.getNextLine() ) != null ) |
| { |
| |
| if ( line.trim().length() == 0 ) |
| { |
| break; |
| } |
| |
| if ( text.length() == 0 ) |
| { |
| text.append( line.trim() ); |
| } |
| else |
| { |
| text.append( " " ).append( line.trim() ); |
| } |
| |
| } |
| |
| return text.toString(); |
| } |
| } |