UBrexCommandEbnfMultilines.java

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 * PlantUML : a free UML diagram generator
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package net.sourceforge.plantuml.ebnf;

import com.plantuml.ubrex.UnicodeBracketedExpression;
import com.plantuml.ubrex.builder.UBrexConcat;
import com.plantuml.ubrex.builder.UBrexLeaf;
import com.plantuml.ubrex.builder.UBrexNamed;

import net.sourceforge.plantuml.Lazy;
import net.sourceforge.plantuml.command.CommandExecutionResult;
import net.sourceforge.plantuml.command.MultilinesStrategy;
import net.sourceforge.plantuml.command.ParserPass;
import net.sourceforge.plantuml.command.Trim;
import net.sourceforge.plantuml.command.UBrexCommandMultilines2;
import net.sourceforge.plantuml.klimt.color.NoSuchColorException;
import net.sourceforge.plantuml.utils.BlocLines;

public class UBrexCommandEbnfMultilines extends UBrexCommandMultilines2<PSystemEbnf> {

	private final static Lazy<UnicodeBracketedExpression> END = new Lazy<>(() -> new UBrexLeaf("〇+〘 〄>; 〙"));

	public UBrexCommandEbnfMultilines() {
		super(getRegexConcat(), MultilinesStrategy.KEEP_STARTING_QUOTE, Trim.BOTH, END);
	}

	static UnicodeBracketedExpression getRegexConcat() {

		return new UBrexNamed("LINE", //
				UBrexConcat.build( //
						new UBrexLeaf("「〴an_」"), //
						new UBrexLeaf("〇*「〴an_-」"), //
						UBrexLeaf.spaceZeroOrMore(), //
						new UBrexLeaf("="), //
						new UBrexLeaf("〇*〴.") //
				));

	}

	@Override
	protected CommandExecutionResult executeNow(PSystemEbnf diagram, BlocLines lines, ParserPass currentPass)
			throws NoSuchColorException {
		return diagram.addBlocLines(lines, null, null);
	}

}