CommandMultilines.java

/* ========================================================================
 * PlantUML : a free UML diagram generator
 * ========================================================================
 *
 * (C) Copyright 2009-2024, Arnaud Roques
 *
 * Project Info:  https://plantuml.com
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 * under the terms of the GNU General Public License as published by
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 * PlantUML distributed in the hope that it will be useful, but
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 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
 * License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
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 * Original Author:  Arnaud Roques
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 */
package net.sourceforge.plantuml.command;

import net.sourceforge.plantuml.core.Diagram;
import net.sourceforge.plantuml.regex.Matcher2;
import net.sourceforge.plantuml.regex.Pattern2;
import net.sourceforge.plantuml.utils.BlocLines;

public abstract class CommandMultilines<S extends Diagram> implements Command<S> {

	private final Pattern2 starting;
	private final Pattern2 ending;

	public CommandMultilines(Pattern2 starting, Pattern2 ending) {
		// assert patternStart.startsWith("^") && patternStart.endsWith("$");
		this.starting = starting;
		this.ending = ending;
	}

	public final void getPatternEnd() {

	}

	final public CommandControl isValid(BlocLines lines) {
		if (isCommandForbidden())
			return CommandControl.NOT_OK;

		Matcher2 m1 = starting.matcher(lines.getFirst().getTrimmed().getString());
		if (m1.matches() == false)
			return CommandControl.NOT_OK;

		if (lines.size() == 1)
			return CommandControl.OK_PARTIAL;

		m1 = ending.matcher(lines.getLast().getTrimmed().getString());
		if (m1.matches() == false)
			return CommandControl.OK_PARTIAL;

		return finalVerification();
	}

	protected boolean isCommandForbidden() {
		return false;
	}

	protected CommandControl finalVerification() {
		return CommandControl.OK;
	}

	protected final Pattern2 getStartingPattern() {
		return starting;
	}

	protected final Pattern2 getEndingPattern() {
		return ending;
	}

	@Override
	public boolean isEligibleFor(ParserPass pass) {
		return pass == ParserPass.ONE;
	}

}