package net.java.textilej.parser.markup.trac.block;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import net.java.textilej.parser.Attributes;
import net.java.textilej.parser.markup.Block;
public class HeadingBlock extends Block {
private static final Pattern pattern = Pattern.compile("\\s*(\\={1,6})([^=]+)\\1(?:\\s+\\#(\\S+)?)?");
private int blockLineCount = 0;
private Matcher matcher;
@Override
public boolean canStart(String line, int lineOffset) {
blockLineCount = 0;
if (lineOffset == 0) {
matcher = pattern.matcher(line);
return matcher.matches();
} else {
matcher = null;
return false;
}
}
@Override
public int processLineContent(String line,int offset) {
if (blockLineCount > 0) {
throw new IllegalStateException();
}
++blockLineCount;
int level = matcher.group(1).length();
String text = matcher.group(2);
String id = matcher.group(3);
Attributes attributes = new Attributes();
attributes.setId(id);
builder.beginHeading(level,attributes);
builder.characters(text);
builder.endHeading();
setClosed(true);
return -1;
}
}