| /******************************************************************************* |
| * Copyright (c) 2007, 2010 David Green and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * David Green - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.mylyn.wikitext.confluence.internal.block; |
| |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| import org.eclipse.mylyn.wikitext.confluence.ConfluenceLanguage; |
| import org.eclipse.mylyn.wikitext.parser.Attributes; |
| import org.eclipse.mylyn.wikitext.parser.DocumentBuilder.BlockType; |
| import org.eclipse.mylyn.wikitext.parser.outline.OutlineItem; |
| import org.eclipse.mylyn.wikitext.parser.outline.OutlineParser; |
| |
| /** |
| * @author David Green |
| */ |
| public class TableOfContentsBlock extends ParameterizedBlock { |
| |
| static final Pattern startPattern = Pattern.compile("\\s*\\{toc(?::([^\\}]+))?\\}\\s*(.+)?"); //$NON-NLS-1$ |
| |
| private int blockLineNumber = 0; |
| |
| private String style = "none"; //$NON-NLS-1$ |
| |
| private int maxLevel = Integer.MAX_VALUE; |
| |
| private Matcher matcher; |
| |
| @Override |
| public int processLineContent(String line, int offset) { |
| if (blockLineNumber++ > 0) { |
| setClosed(true); |
| return 0; |
| } |
| |
| if (!getMarkupLanguage().isFilterGenerativeContents()) { |
| String options = matcher.group(1); |
| setOptions(options); |
| |
| OutlineParser outlineParser = new OutlineParser(new ConfluenceLanguage()); |
| OutlineItem rootItem = outlineParser.parse(state.getMarkupContent()); |
| emitToc(rootItem); |
| } |
| setClosed(true); |
| return matcher.start(2); |
| } |
| |
| private void emitToc(OutlineItem item) { |
| if (item.getChildren().isEmpty()) { |
| return; |
| } |
| if ((item.getLevel() + 1) > maxLevel) { |
| return; |
| } |
| Attributes nullAttributes = new Attributes(); |
| |
| builder.beginBlock(BlockType.NUMERIC_LIST, new Attributes(null, null, "list-style: " + style + ";", null)); //$NON-NLS-1$ //$NON-NLS-2$ |
| for (OutlineItem child : item.getChildren()) { |
| builder.beginBlock(BlockType.LIST_ITEM, nullAttributes); |
| builder.link('#' + child.getId(), child.getLabel()); |
| emitToc(child); |
| builder.endBlock(); |
| } |
| builder.endBlock(); |
| } |
| |
| @Override |
| public boolean canStart(String line, int lineOffset) { |
| style = "none"; //$NON-NLS-1$ |
| maxLevel = Integer.MAX_VALUE; |
| blockLineNumber = 0; |
| |
| matcher = startPattern.matcher(line); |
| if (lineOffset > 0) { |
| matcher.region(lineOffset, line.length()); |
| } |
| if (matcher.matches()) { |
| return true; |
| } else { |
| matcher = null; |
| return false; |
| } |
| } |
| |
| public String getStyle() { |
| return style; |
| } |
| |
| public void setStyle(String style) { |
| this.style = style; |
| } |
| |
| public int getMaxLevel() { |
| return maxLevel; |
| } |
| |
| public void setMaxLevel(int maxLevel) { |
| this.maxLevel = maxLevel; |
| } |
| |
| @Override |
| protected void setOption(String key, String value) { |
| if (key.equals("style")) { //$NON-NLS-1$ |
| setStyle(value); |
| } else if (key.equals("maxLevel")) { //$NON-NLS-1$ |
| try { |
| maxLevel = Integer.parseInt(value); |
| } catch (NumberFormatException e) { |
| } |
| } |
| } |
| |
| } |