net.sourceforge.plantuml.command.CommandHeader Maven / Gradle / Ivy

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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.
package net.sourceforge.plantuml.command;

import net.sourceforge.plantuml.TitledDiagram;
import net.sourceforge.plantuml.klimt.creole.Display;
import net.sourceforge.plantuml.klimt.font.FontParam;
import net.sourceforge.plantuml.klimt.geom.HorizontalAlignment;
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.utils.LineLocation;

public class CommandHeader extends SingleLineCommand2 {

	public static final CommandHeader ME = new CommandHeader();

	private CommandHeader() {
		super(getRegexConcat());
	}

	static IRegex getRegexConcat() {
		return RegexConcat.build(CommandHeader.class.getName(), RegexLeaf.start(), //
				new RegexOptional(new RegexLeaf("POSITION", "(left|right|center)")), //
				RegexLeaf.spaceZeroOrMore(), //
				new RegexLeaf("header"), //
				new RegexOr( //
						new RegexConcat( //
								RegexLeaf.spaceZeroOrMore(), //
								new RegexLeaf(":"), //
								RegexLeaf.spaceZeroOrMore()), //
						RegexLeaf.spaceOneOrMore()), //
				new RegexOr(//
						new RegexLeaf("LABEL1", "[%g](.*)[%g]"), //
						new RegexLeaf("LABEL2", "(.*[%pLN_.].*)")), //
				RegexLeaf.end()); //
	}

	@Override
	protected CommandExecutionResult executeArg(TitledDiagram diagram, LineLocation location, RegexResult arg) {
		final String align = arg.get("POSITION", 0);
		HorizontalAlignment ha = HorizontalAlignment.fromString(align, HorizontalAlignment.RIGHT);
		if (align == null)
			ha = FontParam.HEADER.getStyleDefinition(null).getMergedStyle(diagram.getCurrentStyleBuilder())
					.getHorizontalAlignment();

		final Display s = Display.getWithNewlines(arg.getLazzy("LABEL", 0));
		diagram.getHeader().putDisplay(s, ha);
		return CommandExecutionResult.ok();
	}
}