package net.java.textilej.parser.markup.confluence.block;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import net.java.textilej.parser.Attributes;
import net.java.textilej.parser.DocumentBuilder.BlockType;
import net.java.textilej.parser.markup.Block;
import net.java.textilej.parser.markup.confluence.ConfluenceDialect;
/**
* Matches any textile text, including lines starting with <code>p. </code>.
*
* @author dgreen
*/
public class ParagraphBlock extends Block {
private static final Pattern confluenceBlockStart = Pattern.compile("\\{(code|info|tip|warning|panel|note|toc)(?:(:[^\\}]*))?\\}");
private int blockLineCount = 0;
public ParagraphBlock() {
}
@Override
public int processLineContent(String line,int offset) {
if (blockLineCount == 0) {
Attributes attributes = new Attributes();
builder.beginBlock(BlockType.PARAGRAPH, attributes);
}
if (dialect.isEmptyLine(line)) {
setClosed(true);
return 0;
}
++blockLineCount;
ConfluenceDialect dialect = (ConfluenceDialect) getDialect();
// NOTE: in Textile paragraphs can have nested lists and other things, however
// the resulting XHTML is invalid -- so here we allow for similar constructs
// however we cause them to end the paragraph rather than being nested.
for (Block block: dialect.getParagraphBreakingBlocks()) {
if (block.canStart(line, offset)) {
setClosed(true);
return 0;
}
}
Matcher blockStartMatcher = confluenceBlockStart.matcher(line);
if (offset > 0) {
blockStartMatcher.region(offset, line.length());
}
if (blockStartMatcher.find()) {
int end = blockStartMatcher.start();
if (end > offset) {
dialect.emitMarkupLine(getParser(),state,offset,line.substring(offset,end), 0);
}
setClosed(true);
return end;
}
if (blockLineCount > 1) {
builder.lineBreak();
}
dialect.emitMarkupLine(getParser(),state,line, offset);
return -1;
}
@Override
public boolean canStart(String line, int lineOffset) {
blockLineCount = 0;
return true;
}
@Override
public void setClosed(boolean closed) {
if (closed && !isClosed()) {
builder.endBlock();
}
super.setClosed(closed);
}
}