package net.java.textilej.parser.markup.mediawiki.block;
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.mediawiki.MediaWikiDialect;
/**
* Matches any markup text.
*
* @author dgreen
*/
public class ParagraphBlock extends Block {
private int blockLineCount = 0;
private Block nestedBlock = null;
public ParagraphBlock() {
}
@Override
public int processLineContent(String line,int offset) {
if (blockLineCount == 0) {
Attributes attributes = new Attributes();
builder.beginBlock(BlockType.PARAGRAPH, attributes);
} else if (nestedBlock != null) {
int returnOffset = nestedBlock.processLine(line, offset);
if (nestedBlock.isClosed()) {
nestedBlock = null;
}
if (returnOffset >= 0) {
offset = returnOffset;
if (nestedBlock != null) {
throw new IllegalStateException();
}
} else {
if (dialect.isEmptyLine(line)) {
setClosed(true);
return 0;
}
return returnOffset;
}
}
if (dialect.isEmptyLine(line)) {
setClosed(true);
return 0;
}
MediaWikiDialect dialect = (MediaWikiDialect) getDialect();
// paragraphs can have nested lists and other things
for (Block block: dialect.getParagraphBreakingBlocks()) {
if (block.canStart(line, offset)) {
setClosed(true);
return 0;
}
}
++blockLineCount;
if (nestedBlock != null) {
if (blockLineCount > 1) {
builder.lineBreak();
}
nestedBlock.processLine(line, offset);
} else {
if (offset == 0 && line.length() > 0 && line.charAt(0) == ' ') {
// a preformatted block.
setClosed(true);
return 0;
}
if (blockLineCount != 1) {
// note: newlines don't automatically convert to line breaks
builder.characters("\n");
}
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()) {
if (nestedBlock != null) {
nestedBlock.setClosed(closed);
nestedBlock = null;
}
builder.endBlock();
}
super.setClosed(closed);
}
}