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PlantUML is a component that allows to quickly write diagrams from text.
There is a newer version: 1.2024.8
// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
/* +=======================================================================
 * |
 * |      PlantUML : a free UML diagram generator
 * |
 * +=======================================================================
 *
 * (C) Copyright 2009-2024, Arnaud Roques
 *
 * Project Info:  https://plantuml.com
 *
 * If you like this project or if you find it useful, you can support us at:
 *
 * https://plantuml.com/patreon (only 1$ per month!)
 * https://plantuml.com/liberapay (only 1€ per month!)
 * https://plantuml.com/paypal
 *
 *
 * PlantUML is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License V2.
 *
 * THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE PUBLIC
 * LICENSE ("AGREEMENT"). [GNU General Public License V2]
 *
 * ANY USE, REPRODUCTION OR DISTRIBUTION OF THE PROGRAM CONSTITUTES
 * RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
 *
 * You may obtain a copy of the License at
 *
 * https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * PlantUML can occasionally display sponsored or advertising messages. Those
 * messages are usually generated on welcome or error images and never on
 * functional diagrams.
 * See https://plantuml.com/professional if you want to remove them
 *
 * Images (whatever their format : PNG, SVG, EPS...) generated by running PlantUML
 * are owned by the author of their corresponding sources code (that is, their
 * textual description in PlantUML language). Those images are not covered by
 * this GPL v2 license.
 *
 * The generated images can then be used without any reference to the GPL v2 license.
 * It is not even necessary to stipulate that they have been generated with PlantUML,
 * although this will be appreciated by the PlantUML team.
 *
 * There is an exception : if the textual description in PlantUML language is also covered
 * by any license, then the generated images are logically covered
 * by the very same license.
 *
 * This is the IGY distribution (Install GraphViz by Yourself).
 * You have to install GraphViz and to setup the GRAPHVIZ_DOT environment variable
 * (see https://plantuml.com/graphviz-dot )
 *
 * Icons provided by OpenIconic :  https://useiconic.com/open
 * Archimate sprites provided by Archi :  http://www.archimatetool.com
 * Stdlib AWS provided by https://github.com/milo-minderbinder/AWS-PlantUML
 * Stdlib Icons provided https://github.com/tupadr3/plantuml-icon-font-sprites
 * ASCIIMathML (c) Peter Jipsen http://www.chapman.edu/~jipsen
 * ASCIIMathML (c) David Lippman http://www.pierce.ctc.edu/dlippman
 * CafeUndZopfli ported by Eugene Klyuchnikov https://github.com/eustas/CafeUndZopfli
 * Brotli (c) by the Brotli Authors https://github.com/google/brotli
 * Themes (c) by Brett Schwarz https://github.com/bschwarz/puml-themes
 * Twemoji (c) by Twitter at https://twemoji.twitter.com/
 *
 */
package net.sourceforge.plantuml.yaml;

import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import net.sourceforge.plantuml.StringUtils;
import net.sourceforge.plantuml.stereo.Stereotype;

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

	public static final String HIGHLIGHTED = "#highlight ";
	private final static Pattern pattern = Pattern.compile("^([^<>]+)(\\<\\<.*\\>\\>)?$");

	private final List paths;
	private final Stereotype stereotype;

	private Highlighted(List paths, Stereotype stereotype) {
		this.paths = paths;
		this.stereotype = stereotype;
	}

	public static boolean matchesDefinition(String line) {
		return line.startsWith(Highlighted.HIGHLIGHTED);
	}

	public static Highlighted build(String line) {
		if (matchesDefinition(line) == false)
			throw new IllegalStateException();
		line = line.substring(HIGHLIGHTED.length()).trim();

		final Matcher matcher = pattern.matcher(line);
		if (matcher.matches() == false)
			throw new IllegalStateException();
		final String paths = matcher.group(1).trim();
		final Stereotype stereotype = matcher.group(2) == null ? null : Stereotype.build(matcher.group(2));

		return new Highlighted(toList(paths), stereotype);
	}

	private static List toList(String paths) {
		final List result = new ArrayList<>();
		for (String s : paths.split("/"))
			result.add(StringUtils.eventuallyRemoveStartingAndEndingDoubleQuote(s.trim(), "\""));

		return result;
	}

	public Highlighted upOneLevel(String key) {
		if (paths.size() <= 1)
			return null;
		final String first = paths.get(0);
		if ("**".equals(first))
			return new Highlighted(paths, stereotype);
		if ("*".equals(first) || first.equals(key))
			return new Highlighted(paths.subList(1, paths.size()), stereotype);
		return null;

	}

	public boolean isKeyHighlight(String key) {
		if (paths.size() == 2 && paths.get(0).equals("**") && paths.get(1).equals(key))
			return true;
		return paths.size() == 1 && paths.get(0).equals(key);
	}

	public final Stereotype getStereotype() {
		return stereotype;
	}

}