ComplementIntervals.java

/* ========================================================================
 * PlantUML : a free UML diagram generator
 * ========================================================================
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 * (C) Copyright 2009-2024, Arnaud Roques
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package net.sourceforge.plantuml.project.lang;

import net.sourceforge.plantuml.project.DaysAsDates;
import net.sourceforge.plantuml.project.Failable;
import net.sourceforge.plantuml.project.GanttDiagram;
import net.sourceforge.plantuml.project.time.Day;
import net.sourceforge.plantuml.regex.IRegex;
import net.sourceforge.plantuml.regex.RegexConcat;
import net.sourceforge.plantuml.regex.RegexLeaf;
import net.sourceforge.plantuml.regex.RegexOr;
import net.sourceforge.plantuml.regex.RegexResult;

public class ComplementIntervals implements Something<GanttDiagram> {

	public IRegex toRegex(String suffix) {
		return new RegexOr(toRegexB(suffix), toRegexE(suffix));
	}

	private IRegex toRegexB(String suffix) {
		final DayPattern dayPattern1 = new DayPattern("1");
		final DayPattern dayPattern2 = new DayPattern("2");
		return new RegexConcat( //
				dayPattern1.toRegex(), //
				Words.exactly(Words.TO), //
				Words.zeroOrMore(Words.THE), //
				RegexLeaf.spaceOneOrMore(), //
				dayPattern2.toRegex() //
		);
	}

	private IRegex toRegexE(String suffix) {
		return new RegexConcat( //
				new RegexLeaf("[dD]\\+"), //
				new RegexLeaf(1, "ECOUNT1" + suffix, "([\\d]+)"), //
				Words.exactly(Words.TO), //
				Words.zeroOrMore(Words.THE), //
				RegexLeaf.spaceOneOrMore(), //
				new RegexLeaf("[dD]\\+"), //
				new RegexLeaf(1, "ECOUNT2" + suffix, "([\\d]+)") //
		);
	}

	public Failable<DaysAsDates> getMe(GanttDiagram project, RegexResult arg, String suffix) {
		final Day d1 = new DayPattern("1").getDay(arg);
		if (d1 != null) {
			final Day d2 = new DayPattern("2").getDay(arg);
			return Failable.ok(new DaysAsDates(d1, d2));
		}

		if (arg.get("ECOUNT1" + suffix, 0) != null)
			return Failable.ok(resultE(project, arg, suffix));

		throw new IllegalStateException();

	}

	private DaysAsDates resultE(GanttDiagram project, RegexResult arg, String suffix) {
		final int day1 = Integer.parseInt(arg.get("ECOUNT1" + suffix, 0));
		final Day date1 = project.getStartingDate().addDays(day1);

		final int day2 = Integer.parseInt(arg.get("ECOUNT2" + suffix, 0));
		final Day date2 = project.getStartingDate().addDays(day2);

		return new DaysAsDates(date1, date2);
	}

}