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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
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 * Project Info:  https://plantuml.com
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 * PlantUML is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License V2.
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 * THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE PUBLIC
 * LICENSE ("AGREEMENT"). [GNU General Public License V2]
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 * RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
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 * You may obtain a copy of the License at
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 * https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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 * 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.
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 * 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
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 * 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.
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 * The generated images can then be used without any reference to the GPL v2 license.
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 * although this will be appreciated by the PlantUML team.
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 * by any license, then the generated images are logically covered
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 * 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
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 * Twemoji (c) by Twitter at https://twemoji.twitter.com/
 *
 */
package net.sourceforge.plantuml.chronology;

import java.util.Arrays;
import java.util.Collection;

import net.sourceforge.plantuml.project.Failable;
import net.sourceforge.plantuml.project.core.Task;
import net.sourceforge.plantuml.project.core.TaskCode;
import net.sourceforge.plantuml.project.lang.SentenceSimple;
import net.sourceforge.plantuml.project.lang.Subject;
import net.sourceforge.plantuml.project.lang.Words;
import net.sourceforge.plantuml.regex.IRegex;
import net.sourceforge.plantuml.regex.RegexConcat;
import net.sourceforge.plantuml.regex.RegexLeaf;
import net.sourceforge.plantuml.regex.RegexOptional;
import net.sourceforge.plantuml.regex.RegexOr;
import net.sourceforge.plantuml.regex.RegexResult;
import net.sourceforge.plantuml.stereo.Stereotype;
import net.sourceforge.plantuml.stereo.StereotypePattern;

public class SubjectTask implements Subject {

	public static final Subject ME = new SubjectTask();

	private SubjectTask() {
	}

	public Failable getMe(ChronologyDiagram chronology, RegexResult arg) {
		final Task result;

		final String subject = arg.get("SUBJECT", 0);
		final String shortName = arg.get("SHORTNAME", 0);
		final String stereotype = arg.get("STEREOTYPE", 0);

		final TaskCode code = TaskCode.fromIdAndDisplay(shortName, subject);
		result = chronology.getOrCreateTask(code, false);

		if (stereotype != null)
			result.setStereotype(Stereotype.build(arg.get("STEREOTYPE", 0)));

		return Failable.ok(result);
	}

	public Collection> getSentences() {
		return Arrays.asList(new SentenceHappensChronology());
	}

	public IRegex toRegex() {
		return new RegexOr( //
				new RegexLeaf("SUBJECT", "\\[([^\\[\\]]+?)\\]"), //
				StereotypePattern.optional("STEREOTYPE"), //
				new RegexOptional(new RegexConcat(//
						Words.exactly(Words.AS), //
						RegexLeaf.spaceOneOrMore(), //
						new RegexLeaf("SHORTNAME", "\\[([^\\[\\]]+?)\\]"))) //
		);
	}

}