UBrexCommandIf.java

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package net.sourceforge.plantuml.activitydiagram.command;

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

import net.sourceforge.plantuml.StringUtils;
import net.sourceforge.plantuml.abel.Entity;
import net.sourceforge.plantuml.abel.Link;
import net.sourceforge.plantuml.abel.LinkArg;
import net.sourceforge.plantuml.activitydiagram.ActivityDiagram;
import net.sourceforge.plantuml.classdiagram.command.CommandLinkClass;
import net.sourceforge.plantuml.command.CommandExecutionResult;
import net.sourceforge.plantuml.command.ParserPass;
import net.sourceforge.plantuml.command.UBrexSingleLineCommand2;
import net.sourceforge.plantuml.decoration.LinkDecor;
import net.sourceforge.plantuml.decoration.LinkType;
import net.sourceforge.plantuml.descdiagram.command.CommandLinkElement;
import net.sourceforge.plantuml.klimt.creole.Display;
import net.sourceforge.plantuml.regex.RegexResult;
import net.sourceforge.plantuml.utils.Direction;
import net.sourceforge.plantuml.utils.LineLocation;

public class UBrexCommandIf extends UBrexSingleLineCommand2<ActivityDiagram> {

	public UBrexCommandIf() {
		super(getRegexConcat());
	}

	static UnicodeBracketedExpression getRegexConcat() {
		final UBrexConcat simple = UBrexConcat.build( //
				UBrexLeaf.spaceZeroOrMore(), //
				new UBrexOptional(UBrexConcat.build( //
						new UBrexNamed("ARROW_BODY1", new UBrexLeaf("" + String.valueOf((char)0x3007) + "+" + String.valueOf((char)0x300C) + "-." + String.valueOf((char)0x300D) + "")), //
						new UBrexLeaf("" + String.valueOf((char)0x3007) + "?" + String.valueOf((char)0x3018) + " [ " + String.valueOf((char)0x3036) + "$ARROW_STYLE1=" + String.valueOf((char)0x3018) + "" + CommandLinkElement.UBREX_LINE_STYLE + "" + String.valueOf((char)0x3019) + "] " + String.valueOf((char)0x3019) + ""), //
						new UBrexNamed("ARROW_DIRECTION",
								new UBrexLeaf("" + String.valueOf((char)0x3007) + "?" + String.valueOf((char)0x3010) + " *" + String.valueOf((char)0x2507) + "left" + String.valueOf((char)0x2507) + "right" + String.valueOf((char)0x2507) + "up" + String.valueOf((char)0x2507) + "down" + String.valueOf((char)0x2507) + "l" + String.valueOf((char)0x3007) + "?e" + String.valueOf((char)0x2507) + "r" + String.valueOf((char)0x3007) + "?i" + String.valueOf((char)0x2507) + "u" + String.valueOf((char)0x3007) + "?p" + String.valueOf((char)0x2507) + "d" + String.valueOf((char)0x3007) + "?o" + String.valueOf((char)0x3011) + "")), //
						new UBrexLeaf("" + String.valueOf((char)0x3007) + "?" + String.valueOf((char)0x3018) + " [  " + String.valueOf((char)0x3036) + "$ARROW_STYLE2=" + String.valueOf((char)0x3018) + "" + CommandLinkElement.UBREX_LINE_STYLE + "" + String.valueOf((char)0x3019) + "] " + String.valueOf((char)0x3019) + ""), //
						new UBrexNamed("ARROW_BODY2", new UBrexLeaf("" + String.valueOf((char)0x3007) + "*" + String.valueOf((char)0x300C) + "-." + String.valueOf((char)0x300D) + "")), //
						new UBrexLeaf(">") //
				)), // "02onStart()" --> if "" then
				UBrexLeaf.spaceZeroOrMore(), //
				new UBrexOptional(new UBrexLeaf("[ " + String.valueOf((char)0x3036) + "$BRACKET=" + String.valueOf((char)0x3018) + "" + String.valueOf((char)0x3007) + "+" + String.valueOf((char)0x300C) + "" + String.valueOf((char)0x3024) + "]*" + String.valueOf((char)0x300D) + "  " + String.valueOf((char)0x3007) + "*" + String.valueOf((char)0x300C) + "" + String.valueOf((char)0x3024) + "]" + String.valueOf((char)0x300D) + "" + String.valueOf((char)0x3019) + " ]")), UBrexLeaf.spaceZeroOrMore(), //
				new UBrexOr(//
						new UBrexLeaf("if " + String.valueOf((char)0x3007) + "*" + String.valueOf((char)0x3034) + "s " + String.valueOf((char)0x3034) + "g  " + String.valueOf((char)0x3036) + "$IF1=" + String.valueOf((char)0x3007) + "*" + String.valueOf((char)0x3034) + "G " + String.valueOf((char)0x3034) + "g " + String.valueOf((char)0x3007) + "*" + String.valueOf((char)0x3034) + "s " + String.valueOf((char)0x3007) + "?" + String.valueOf((char)0x3018) + "as " + String.valueOf((char)0x3007) + "+" + String.valueOf((char)0x3034) + "s " + String.valueOf((char)0x3036) + "$ASIF1=" + String.valueOf((char)0x3007) + "+" + String.valueOf((char)0x300C) + "" + String.valueOf((char)0x3034) + "an_." + String.valueOf((char)0x300D) + " " + String.valueOf((char)0x3007) + "+" + String.valueOf((char)0x3034) + "s " + String.valueOf((char)0x3019) + "" + String.valueOf((char)0x3018) + "then" + String.valueOf((char)0x3019) + ""), //
						new UBrexLeaf("if " + String.valueOf((char)0x3007) + "+" + String.valueOf((char)0x3034) + "s " + String.valueOf((char)0x3036) + "$IF2=" + String.valueOf((char)0x3007) + "l+" + String.valueOf((char)0x3034) + ". " + String.valueOf((char)0x3018) + "then" + String.valueOf((char)0x3019) + " "), //
						new UBrexLeaf("if " + String.valueOf((char)0x3007) + "*" + String.valueOf((char)0x3034) + "s " + String.valueOf((char)0x3034) + "g  " + String.valueOf((char)0x3036) + "$IF1=" + String.valueOf((char)0x3007) + "*" + String.valueOf((char)0x3034) + "G " + String.valueOf((char)0x3034) + "g " + String.valueOf((char)0x3007) + "*" + String.valueOf((char)0x3034) + "s " + String.valueOf((char)0x3007) + "?" + String.valueOf((char)0x3018) + "as " + String.valueOf((char)0x3007) + "+" + String.valueOf((char)0x3034) + "s " + String.valueOf((char)0x3036) + "$ASIF1=" + String.valueOf((char)0x3007) + "+" + String.valueOf((char)0x300C) + "" + String.valueOf((char)0x3034) + "an_." + String.valueOf((char)0x300D) + " " + String.valueOf((char)0x3007) + "+" + String.valueOf((char)0x3034) + "s " + String.valueOf((char)0x3019) + ""), //
						new UBrexLeaf("if " + String.valueOf((char)0x3007) + "+" + String.valueOf((char)0x3034) + "s " + String.valueOf((char)0x3036) + "$IF2=" + String.valueOf((char)0x3007) + "+" + String.valueOf((char)0x3034) + ".") //
				));

		return UBrexConcat.build( //
				new UBrexOr(simple, //
						UBrexConcat.build(new UBrexNamed("STAR", new UBrexLeaf("(* " + String.valueOf((char)0x3007) + "?" + String.valueOf((char)0x3018) + "top" + String.valueOf((char)0x3019) + ")")), simple), //
						UBrexConcat.build(new UBrexNamed("BAR", new UBrexLeaf("=" + String.valueOf((char)0x3007) + "+= " + String.valueOf((char)0x3007) + "*" + String.valueOf((char)0x3034) + "s " + String.valueOf((char)0x3007) + "+" + String.valueOf((char)0x300C) + "" + String.valueOf((char)0x3034) + "an_." + String.valueOf((char)0x300D) + "" + String.valueOf((char)0x3007) + "*" + String.valueOf((char)0x3034) + "s =" + String.valueOf((char)0x3007) + "+=")), simple), //
						UBrexConcat.build(new UBrexLeaf("" + String.valueOf((char)0x3034) + "g " + String.valueOf((char)0x3036) + "$QUOTED1=" + String.valueOf((char)0x3007) + "*" + String.valueOf((char)0x3034) + "G " + String.valueOf((char)0x3034) + "g " + String.valueOf((char)0x3007) + "?" + String.valueOf((char)0x3018) + "" + String.valueOf((char)0x3007) + "+" + String.valueOf((char)0x3034) + "s as " + String.valueOf((char)0x3007) + "+" + String.valueOf((char)0x3034) + "s " + String.valueOf((char)0x3036) + "$QUOTED2=" + String.valueOf((char)0x3007) + "+" + String.valueOf((char)0x300C) + "" + String.valueOf((char)0x3034) + "an_." + String.valueOf((char)0x300D) + " " + String.valueOf((char)0x3019) + " "),
								simple),
						UBrexConcat.build(new UBrexNamed("CODE", new UBrexLeaf("" + String.valueOf((char)0x3007) + "+" + String.valueOf((char)0x300C) + "" + String.valueOf((char)0x3034) + "an_." + String.valueOf((char)0x300D) + "")), simple) //
				), //
				UBrexLeaf.end()); //
	}

	@Override
	protected CommandExecutionResult executeArg(ActivityDiagram diagram, LineLocation location, RegexResult arg,
			ParserPass currentPass) {
		final Entity entity1 = CommandLinkActivity.ubrexGetEntityForIfOnly(location, diagram, arg);
		if (entity1 == null)
			return CommandExecutionResult.error("No if possible at this point");

		final String ifCode;
		final String ifLabel;
		if (arg.get("IF2", 0) == null) {
			ifCode = arg.get("ASIF1", 0);
			ifLabel = arg.get("IF1", 0);
		} else {
			ifCode = null;
			ifLabel = arg.get("IF2", 0);
		}
		diagram.startIf(location, ifCode);

		int length = 2;

		if (arg.get("ARROW_BODY1", 0) != null) {
//			final String arrow = StringUtils.manageArrowForCuca(arg.get("ARROW", 0));
//			length = arrow.length() - 1;
			final String arrowBody1 = CommandLinkClass.notNull(arg.get("ARROW_BODY1", 0));
			final String arrowBody2 = CommandLinkClass.notNull(arg.get("ARROW_BODY2", 0));
			final String arrowDirection = CommandLinkClass.notNull(arg.get("ARROW_DIRECTION", 0));

			final String arrow = StringUtils.manageArrowForCuca(arrowBody1 + arrowDirection + arrowBody2 + ">");
			length = arrow.length() - 1;
		}

		final Entity branch = diagram.getCurrentContext().getBranch();

		final LinkArg linkArg = LinkArg.build(Display.getWithNewlines(diagram.getPragma(), arg.get("BRACKET", 0)),
				length);
		Link link = new Link(location, diagram, diagram.getSkinParam().getCurrentStyleBuilder(), entity1, branch,
				new LinkType(LinkDecor.ARROW, LinkDecor.NONE), linkArg.withQuantifier(null, ifLabel)
						.withDistanceAngle(diagram.getLabeldistance(), diagram.getLabelangle()));
		if (arg.get("ARROW", 0) != null) {
			final Direction direction = StringUtils.getArrowDirection(arg.get("ARROW", 0));
			if (direction == Direction.LEFT || direction == Direction.UP)
				link = link.getInv();

		}

		link.applyStyle(arg.getLazzy("ARROW_STYLE", 0));
		diagram.addLink(link);

		return CommandExecutionResult.ok();
	}

}