Stereostyles.java

/* ========================================================================
 * PlantUML : a free UML diagram generator
 * ========================================================================
 *
 * (C) Copyright 2009-2024, Arnaud Roques
 *
 * Project Info:  https://plantuml.com
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 * License for more details.
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 * License along with this library; if not, write to the Free Software
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 * Original Author:  Arnaud Roques
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package net.sourceforge.plantuml.stereo;

import java.util.Collection;
import java.util.Collections;
import java.util.LinkedHashSet;
import java.util.Set;

import net.sourceforge.plantuml.regex.Matcher2;
import net.sourceforge.plantuml.regex.Pattern2;

public class Stereostyles {
	// ::remove folder when __HAXE__

	public static final Stereostyles NONE = new Stereostyles();

	private final Set<String> names = new LinkedHashSet<>();

	private Stereostyles() {
	}

	public boolean isEmpty() {
		return names.isEmpty();
	}

	private static final Pattern2 p = Pattern2.cmpile("\\<{3}(.*?)\\>{3}");

	public static Stereostyles build(String label) {
		final Stereostyles result = new Stereostyles();
		final Matcher2 m = p.matcher(label);
		while (m.find())
			result.names.add(m.group(1));

		return result;
	}

	public Collection<String> getStyleNames() {
		return Collections.unmodifiableCollection(names);
	}

}