net.java.textilej.parser.markup.textile.phrase.SimpleTextilePhraseModifier Maven / Gradle / Ivy

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package net.java.textilej.parser.markup.textile.phrase;

import net.java.textilej.parser.Attributes;
import net.java.textilej.parser.DocumentBuilder.SpanType;
import net.java.textilej.parser.markup.PatternBasedElement;
import net.java.textilej.parser.markup.PatternBasedElementProcessor;
import net.java.textilej.parser.markup.textile.Textile;

public class SimpleTextilePhraseModifier extends PatternBasedElement {

	
	protected static final int CONTENT_GROUP = Textile.ATTRIBUTES_GROUP_COUNT+1;
	protected static final int ATTRIBUTES_OFFSET = 1;
	
	private static class SimplePhraseModifierProcessor extends PatternBasedElementProcessor {
		private final SpanType spanType;
		private final boolean nesting;
		
		public SimplePhraseModifierProcessor(SpanType spanType, boolean nesting) {
			this.spanType = spanType;
			this.nesting = nesting;
		}
		
		@Override
		public void emit() {
			Attributes attributes = new Attributes();
			configureAttributes(this, attributes);
			getBuilder().beginSpan(spanType, attributes);
			if (nesting) {
				getDialect().emitMarkupLine(parser, state, state.getLineCharacterOffset() + getStart(this),
						getContent(this), 0);
			} else {
				getDialect().emitMarkupText(parser, state, getContent(this));
			}
			getBuilder().endSpan();
		}
	}
	
	private String delimiter;
	private SpanType spanType;
	private final boolean nesting;
	
	public SimpleTextilePhraseModifier(String delimiter, SpanType spanType, boolean nesting) {
		this.delimiter = delimiter;
		this.spanType = spanType;
		this.nesting = nesting;
	}

	@Override
	protected String getPattern(int groupOffset) {
		String quotedDelimiter = quoteLite(getDelimiter());
		
		return 
		quotedDelimiter + "(?!"+quotedDelimiter+")"+
		Textile.REGEX_ATTRIBUTES +
		"([^\\s"+quotedDelimiter+"]+|\\S[^"+quotedDelimiter+"]*[^\\s"+quotedDelimiter+"])" + // content
		quotedDelimiter;
	}

	private String quoteLite(String literal) {
		StringBuilder buf = new StringBuilder(literal.length()*2);
		for (int x = 0;x