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/* ========================================================================
* PlantUML : a free UML diagram generator
* ========================================================================
*
* (C) Copyright 2009-2017, Arnaud Roques
*
* Project Info: http://plantuml.com
*
* If you like this project or if you find it useful, you can support us at:
*
* http://plantuml.com/patreon (only 1$ per month!)
* http://plantuml.com/paypal
*
* This file is part of PlantUML.
*
* PlantUML is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* PlantUML distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* 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,
* USA.
*
*
* Original Author: Arnaud Roques
*
*/
package net.sourceforge.plantuml.timingdiagram;
import java.math.BigDecimal;
import net.sourceforge.plantuml.command.regex.RegexLeaf;
import net.sourceforge.plantuml.command.regex.RegexResult;
public class TimeTickBuilder {
private static final String WITHOUT_AROBASE = "(\\+?)(-?\\d+\\.?\\d*)";
private static final String WITH_AROBASE = "@" + WITHOUT_AROBASE;
public static RegexLeaf expressionAtWithoutArobase(String name) {
return new RegexLeaf(name, WITHOUT_AROBASE);
}
public static RegexLeaf expressionAtWithArobase(String name) {
return new RegexLeaf(name, WITH_AROBASE);
}
public static RegexLeaf optionalExpressionAtWithArobase(String name) {
return new RegexLeaf(name, "(?:" + WITH_AROBASE + ")?");
}
public static TimeTick parseTimeTick(String name, RegexResult arg, Clock clock) {
final String number = arg.get(name, 1);
if (number == null) {
return clock.getNow();
}
final boolean isRelative = "+".equals(arg.get(name, 0));
BigDecimal value = new BigDecimal(number);
if (isRelative) {
value = clock.getNow().getTime().add(value);
}
return new TimeTick(value);
}
}
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