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/*******************************************************************************
* 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.textile.internal.block;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.eclipse.mylyn.wikitext.parser.Attributes;
import org.eclipse.mylyn.wikitext.parser.DocumentBuilder.BlockType;
import org.eclipse.mylyn.wikitext.parser.QuoteAttributes;
import org.eclipse.mylyn.wikitext.parser.markup.Block;
import org.eclipse.mylyn.wikitext.textile.internal.Textile;
/**
* quoted text block, matches blocks that start with <code>bc. </code>. Creates an extended block type of
* {@link ParagraphBlock paragraph}.
*
* @author David Green
*/
public class QuoteBlock extends Block {
private static final int LINE_REMAINDER_GROUP = Textile.ATTRIBUTES_BLOCK_GROUP_COUNT + 3;
private static final int CITATION_GROUP = Textile.ATTRIBUTES_BLOCK_GROUP_COUNT + 2;
private static final int EXTENDED_GROUP = Textile.ATTRIBUTES_BLOCK_GROUP_COUNT + 1;
static final Pattern startPattern = Pattern.compile("bq" + Textile.REGEX_BLOCK_ATTRIBUTES //$NON-NLS-1$
+ "\\.(\\.)?(?::(https?://[^\\s]*))?\\s+(.*)"); //$NON-NLS-1$
private boolean extended;
private boolean paraOpen;
private int blockLineCount = 0;
private Matcher matcher;
public QuoteBlock() {
}
@Override
public int processLineContent(String line, int offset) {
if (blockLineCount == 0) {
QuoteAttributes attributes = new QuoteAttributes();
Textile.configureAttributes(attributes, matcher, 1, true);
attributes.setCitation(matcher.group(CITATION_GROUP));
offset = matcher.start(LINE_REMAINDER_GROUP);
extended = matcher.group(EXTENDED_GROUP) != null;
builder.beginBlock(BlockType.QUOTE, attributes);
builder.beginBlock(BlockType.PARAGRAPH, new Attributes());
paraOpen = true;
}
if (markupLanguage.isEmptyLine(line)) {
if (!extended) {
setClosed(true);
return 0;
} else {
if (paraOpen) {
builder.endBlock(); // para
paraOpen = false;
}
return -1;
}
} else if (extended && Textile.explicitBlockBegins(line, offset)) {
setClosed(true);
return offset;
}
if (blockLineCount != 0) {
if (paraOpen) {
builder.lineBreak();
} else {
builder.beginBlock(BlockType.PARAGRAPH, new Attributes());
paraOpen = true;
}
}
++blockLineCount;
getMarkupLanguage().emitMarkupLine(getParser(), state, line, offset);
return -1;
}
@Override
public boolean canStart(String line, int lineOffset) {
blockLineCount = 0;
if (lineOffset == 0) {
matcher = startPattern.matcher(line);
return matcher.matches();
} else {
matcher = null;
return false;
}
}
@Override
public void setClosed(boolean closed) {
if (closed && !isClosed()) {
if (paraOpen) {
builder.endBlock(); // para
paraOpen = false;
}
builder.endBlock(); // quote
}
super.setClosed(closed);
}
}
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