| package org.apache.maven.doxia.module.confluence.parser.list; |
| |
| /* |
| * 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.util.ByLineSource; |
| import org.apache.maven.doxia.module.confluence.parser.Block; |
| import org.apache.maven.doxia.module.confluence.parser.BlockParser; |
| import org.apache.maven.doxia.parser.ParseException; |
| |
| /** |
| * <p>ListBlockParser class.</p> |
| * |
| * @author <a href="mailto:jason@maven.org">Jason van Zyl</a> |
| * @version $Id$ |
| */ |
| public class ListBlockParser |
| implements BlockParser |
| { |
| /** Constant <code>BULLETED_LIST=0</code> */ |
| public static final int BULLETED_LIST = 0; |
| |
| /** Constant <code>NUMBERED_LIST=1</code> */ |
| public static final int NUMBERED_LIST = 1; |
| |
| /** {@inheritDoc} */ |
| public boolean accept( String line, ByLineSource source ) |
| { |
| if ( isList( line ) ) |
| { |
| return true; |
| } |
| |
| return false; |
| } |
| |
| /** {@inheritDoc} */ |
| public Block visit( String line, ByLineSource source ) |
| throws ParseException |
| { |
| TreeListBuilder treeListBuilder = new TreeListBuilder(); |
| |
| StringBuilder text = new StringBuilder(); |
| |
| do |
| { |
| if ( line.trim().length() == 0 ) |
| { |
| break; |
| } |
| |
| if ( text.length() > 0 && isList( line ) ) |
| { |
| // We reached a new line with list prefix |
| addItem( treeListBuilder, text ); |
| } |
| |
| if ( text.length() == 0 ) |
| { |
| text.append( line.trim() ); |
| } |
| else |
| { |
| text.append( " " ).append( line.trim() ); |
| } |
| |
| } |
| while ( ( line = source.getNextLine() ) != null ); |
| |
| if ( text.length() > 0 ) |
| { |
| addItem( treeListBuilder, text ); |
| } |
| |
| return treeListBuilder.getBlock(); |
| } |
| |
| private void addItem( TreeListBuilder treeListBuilder, StringBuilder text ) |
| { |
| String item = text.toString(); |
| int level = getLevel( item ); |
| |
| if ( isBulletedList( item, level - 1 ) ) |
| { |
| treeListBuilder.feedEntry( BULLETED_LIST, level, item.substring( level ) ); |
| } |
| else |
| { |
| treeListBuilder.feedEntry( NUMBERED_LIST, level, item.substring( level ) ); |
| } |
| text.setLength( 0 ); |
| } |
| |
| private int getLevel( String line ) |
| { |
| int level = 0; |
| |
| while ( line.charAt( level ) == '*' || line.charAt( level ) == '-' || line.charAt( level ) == '#' ) |
| { |
| level++; |
| } |
| |
| return level; |
| } |
| |
| private boolean isBulletedList( String line, int deph ) |
| { |
| return ( line.charAt( deph ) == '*' || line.charAt( deph ) == '-' ); |
| } |
| |
| private boolean isList( String line ) |
| { |
| line = line.trim(); |
| |
| if ( line.startsWith( "*" ) || line.startsWith( "-" ) || line.startsWith( "#" ) ) |
| { |
| String temp = line.substring( 1 ); |
| while ( temp.length() > 0 |
| && ( temp.charAt( 0 ) == '*' || temp.charAt( 0 ) == '-' || temp.charAt( 0 ) == '#' ) ) |
| { |
| temp = temp.substring( 1 ); |
| } |
| |
| if ( temp.length() > 0 && temp.charAt( 0 ) == ' ' ) |
| { |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| } |