wip

src/net/sourceforge/plantuml/BlockUml.java

@@ -175,10 +175,9 @@ public class BlockUml {
 		if (system == null) {
 			if (preprocessorError)
 				system = new PSystemErrorPreprocessor(data, debug);
-			else {
+			else
 				system = new PSystemBuilder().createPSystem(data, rawSource,
 						skinParam == null ? Collections.<String, String>emptyMap() : skinParam.values());
-			}
 		}
 		return system;
 	}

src/net/sourceforge/plantuml/PSystemBuilder.java

@@ -212,8 +212,7 @@ public class PSystemBuilder {
 		if (License.getCurrent() == License.GPL || License.getCurrent() == License.GPLV2) {
 			factories.add(new PSystemXearthFactory());
 		}
-		factories.add(new GanttDiagramFactory(DiagramType.GANTT));
+		factories.add(new GanttDiagramFactory());
-		GanttDiagramFactory.clearCache();
 		factories.add(new FlowDiagramFactory());
 		// factories.add(new PSystemTreeFactory(DiagramType.JUNGLE));
 		// factories.add(new PSystemCuteFactory(DiagramType.CUTE));

src/net/sourceforge/plantuml/StringLocated.java

@@ -143,7 +143,7 @@ final public class StringLocated {
 
 	public long getFoxSignature() {
 		if (fox == -1)
-			fox = FoxSignature.getFoxSignature(getString());
+			fox = FoxSignature.getFoxSignatureFromRealString(getString());
 
 		return fox;
 	}

src/net/sourceforge/plantuml/activitydiagram/ActivityDiagramFactory.java

@@ -35,7 +35,6 @@
  */
 package net.sourceforge.plantuml.activitydiagram;
 
-import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
@@ -64,8 +63,7 @@ public class ActivityDiagramFactory extends PSystemCommandFactory {
 	}
 
 	@Override
-	protected List<Command> createCommands() {
+	protected void initCommandsList(List<Command> cmds) {
-		final List<Command> cmds = new ArrayList<>();
 		cmds.add(new CommandFootboxIgnored());
 		CommonCommands.addCommonCommands1(cmds);
 		cmds.add(new CommandRankDir());
@@ -90,8 +88,6 @@ public class ActivityDiagramFactory extends PSystemCommandFactory {
 		cmds.add(new CommandHideShow2());
 		// addCommand(new CommandInnerConcurrent(system));
 
-		return cmds;
-
 	}
 
 }

src/net/sourceforge/plantuml/activitydiagram3/ActivityDiagramFactory3.java

@@ -35,7 +35,6 @@
  */
 package net.sourceforge.plantuml.activitydiagram3;
 
-import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
@@ -93,9 +92,8 @@ import net.sourceforge.plantuml.core.UmlSource;
 public class ActivityDiagramFactory3 extends PSystemCommandFactory {
 
 	@Override
-	protected List<Command> createCommands() {
+	protected void initCommandsList(List<Command> cmds) {
 
-		final List<Command> cmds = new ArrayList<>();
 		cmds.add(new CommandFootboxIgnored());
 
 		CommonCommands.addCommonCommands1(cmds);
@@ -155,8 +153,6 @@ public class ActivityDiagramFactory3 extends PSystemCommandFactory {
 		cmds.add(new CommandLabel());
 		cmds.add(new CommandGoto());
 		cmds.add(CommandDecoratorMultine.create(new CommandElseIf2(), 50));
-
-		return cmds;
 	}
 
 	@Override

src/net/sourceforge/plantuml/activitydiagram3/command/CommandActivity3.java

@@ -89,7 +89,7 @@ public class CommandActivity3 extends SingleLineCommand2<ActivityDiagram3> {
 				new RegexLeaf("URL", "(" + UrlBuilder.getRegexp() + ")?"), //
 				color().getRegex(), //
 				RegexLeaf.spaceZeroOrMore(), //
-				new RegexLeaf("STEREO", "(\\<{2}.*\\>{2})?"), //
+				new RegexLeaf("STEREO", "(\\<\\<.*\\>\\>)?"), //
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf(":"), //
 				new RegexLeaf("LABEL", "(.*)"), //

src/net/sourceforge/plantuml/activitydiagram3/command/CommandPartition3.java

@@ -78,7 +78,7 @@ public class CommandPartition3 extends SingleLineCommand2<ActivityDiagram3> {
 								RegexLeaf.spaceOneOrMore(), //
 								color("BACK2").getRegex())), //
 				RegexLeaf.spaceZeroOrMore(), //
-				new RegexLeaf("STEREO", "(\\<{2}.*\\>{2})?"), //
+				new RegexLeaf("STEREO", "(\\<\\<.*\\>\\>)?"), //
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("\\{?"), //
 				RegexLeaf.end());

src/net/sourceforge/plantuml/activitydiagram3/command/CommandRepeat3.java

@@ -62,7 +62,7 @@ public class CommandRepeat3 extends SingleLineCommand2<ActivityDiagram3> {
 
 	static IRegex getRegexConcat() {
 		return RegexConcat.build(CommandRepeat3.class.getName(), RegexLeaf.start(), //
-				new RegexLeaf("STEREO", "(\\<{2}.*\\>{2})?"), //
+				new RegexLeaf("STEREO", "(\\<\\<.*\\>\\>)?"), //
 				ColorParser.exp4(), //
 				new RegexLeaf("repeat"), //
 				RegexLeaf.spaceZeroOrMore(), //

src/net/sourceforge/plantuml/activitydiagram3/ftile/vcompact/FtileIfAndStop.java

@@ -46,7 +46,6 @@ import net.sourceforge.plantuml.LineBreakStrategy;
 import net.sourceforge.plantuml.activitydiagram3.Branch;
 import net.sourceforge.plantuml.activitydiagram3.ftile.AbstractConnection;
 import net.sourceforge.plantuml.activitydiagram3.ftile.AbstractFtile;
-import net.sourceforge.plantuml.activitydiagram3.ftile.Arrows;
 import net.sourceforge.plantuml.activitydiagram3.ftile.Connection;
 import net.sourceforge.plantuml.activitydiagram3.ftile.Ftile;
 import net.sourceforge.plantuml.activitydiagram3.ftile.FtileFactory;
@@ -60,7 +59,6 @@ import net.sourceforge.plantuml.activitydiagram3.ftile.vertical.FtileDiamondInsi
 import net.sourceforge.plantuml.awt.geom.XDimension2D;
 import net.sourceforge.plantuml.awt.geom.XPoint2D;
 import net.sourceforge.plantuml.creole.CreoleMode;
-import net.sourceforge.plantuml.creole.Parser;
 import net.sourceforge.plantuml.creole.Sheet;
 import net.sourceforge.plantuml.creole.SheetBlock1;
 import net.sourceforge.plantuml.creole.SheetBlock2;

src/net/sourceforge/plantuml/activitydiagram3/ftile/vcompact/FtileIfLongHorizontal.java

@@ -103,9 +103,7 @@ class FtileIfLongHorizontal extends AbstractFtile {
 	}
 
 	private static List<Ftile> alignDiamonds(List<Ftile> diamonds, StringBounder stringBounder) {
-		double maxOutY = 0;
+		final double maxOutY = getMaxOutY(diamonds, stringBounder);
-		for (Ftile diamond : diamonds)
-			maxOutY = Math.max(maxOutY, diamond.calculateDimension(stringBounder).getOutY());
 
 		final List<Ftile> result = new ArrayList<>();
 		for (int i = 0; i < diamonds.size(); i++) {
@@ -118,6 +116,13 @@ class FtileIfLongHorizontal extends AbstractFtile {
 		return result;
 	}
 
+	private static double getMaxOutY(List<Ftile> diamonds, StringBounder stringBounder) {
+		double maxOutY = 0;
+		for (Ftile diamond : diamonds)
+			maxOutY = Math.max(maxOutY, diamond.calculateDimension(stringBounder).getOutY());
+		return maxOutY;
+	}
+
 	public Set<Swimlane> getSwimlanes() {
 		final Set<Swimlane> result = new HashSet<>();
 		if (getSwimlaneIn() != null)
@@ -660,6 +665,9 @@ class FtileIfLongHorizontal extends AbstractFtile {
 	}
 
 	private FtileGeometry calculateDimensionInternal(StringBounder stringBounder) {
+
+		final double maxOutY = getMaxOutY(diamonds, stringBounder);
+
 		XDimension2D result = new XDimension2D(0, 0);
 		for (Ftile couple : couples)
 			result = result.mergeLR(couple.calculateDimension(stringBounder));
@@ -667,7 +675,7 @@ class FtileIfLongHorizontal extends AbstractFtile {
 		XDimension2D dimTile2 = tile2.calculateDimension(stringBounder);
 		dimTile2 = dimTile2.delta(0, getDiamondsHeight(stringBounder) / 2);
 		result = result.mergeLR(dimTile2);
-		result = result.delta(xSeparation * couples.size(), 100);
+		result = result.delta(xSeparation * couples.size(), Math.max(100, maxOutY));
 
 		return new FtileGeometry(result, result.getWidth() / 2, 0);
 	}

src/net/sourceforge/plantuml/board/BoardDiagramFactory.java

@@ -35,7 +35,6 @@
  */
 package net.sourceforge.plantuml.board;
 
-import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
@@ -52,9 +51,7 @@ public class BoardDiagramFactory extends PSystemCommandFactory {
 	}
 
 	@Override
-	protected List<Command> createCommands() {
+	protected void initCommandsList(List<Command> cmds) {
-
-		final List<Command> cmds = new ArrayList<>();
 		CommonCommands.addCommonCommands1(cmds);
 		cmds.add(new CommandBoardPlus());
 		// cmds.add(new CommandMindMapTabulation());
@@ -63,8 +60,6 @@ public class BoardDiagramFactory extends PSystemCommandFactory {
 //		cmds.add(new CommandMindMapRoot());
 //		cmds.add(new CommandMindMapPlus());
 //		cmds.add(new CommandMindMapDirection());
-
-		return cmds;
 	}
 
 	@Override

src/net/sourceforge/plantuml/bpm/BpmDiagramFactory.java

@@ -35,7 +35,6 @@
  */
 package net.sourceforge.plantuml.bpm;
 
-import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
@@ -52,8 +51,7 @@ public class BpmDiagramFactory extends PSystemCommandFactory {
 	}
 
 	@Override
-	protected List<Command> createCommands() {
+	protected void initCommandsList(List<Command> result) {
-		final List<Command> result = new ArrayList<>();
 		result.add(new CommandDockedEvent());
 		result.add(new CommandMerge());
 		result.add(new CommandResume());
@@ -61,7 +59,6 @@ public class BpmDiagramFactory extends PSystemCommandFactory {
 		result.add(new CommandNewBranch());
 		result.add(new CommandElseBranch());
 		result.add(new CommandEndBranch());
-		return result;
 	}
 
 	@Override

src/net/sourceforge/plantuml/classdiagram/ClassDiagramFactory.java

@@ -35,7 +35,6 @@
  */
 package net.sourceforge.plantuml.classdiagram;
 
-import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
@@ -91,8 +90,7 @@ public class ClassDiagramFactory extends PSystemCommandFactory {
 	}
 
 	@Override
-	protected List<Command> createCommands() {
+	protected void initCommandsList(List<Command> cmds) {
-		final List<Command> cmds = new ArrayList<>();
 		cmds.add(new CommandFootboxIgnored());
 
 		cmds.add(new CommandRankDir());
@@ -161,7 +159,5 @@ public class ClassDiagramFactory extends PSystemCommandFactory {
 		cmds.add(new CommandCreateElementMultilines(1));
 		CommonCommands.addTitleCommands(cmds);
 		CommonCommands.addCommonCommands2(cmds);
-
-		return cmds;
 	}
 }

src/net/sourceforge/plantuml/classdiagram/command/CommandCreateClass.java

@@ -105,7 +105,7 @@ public class CommandCreateClass extends SingleLineCommand2<ClassDiagram> {
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("TAGS1", Stereotag.pattern() + "?"), //
 				RegexLeaf.spaceZeroOrMore(), //
-				new RegexLeaf("STEREO", "(\\<{2}.*\\>{2})?"), //
+				new RegexLeaf("STEREO", "(\\<\\<.*\\>\\>)?"), //
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("TAGS2", Stereotag.pattern() + "?"), //
 				RegexLeaf.spaceZeroOrMore(), //

src/net/sourceforge/plantuml/classdiagram/command/CommandHideShowByGender.java

@@ -59,7 +59,9 @@ import net.sourceforge.plantuml.sequencediagram.SequenceDiagram;
 
 public class CommandHideShowByGender extends SingleLineCommand2<UmlDiagram> {
 
-	public CommandHideShowByGender() {
+	public static final CommandHideShowByGender ME = new CommandHideShowByGender();
+
+	private CommandHideShowByGender() {
 		super(getRegexConcat());
 	}
 

src/net/sourceforge/plantuml/classdiagram/command/CommandHideShowByVisibility.java

@@ -54,7 +54,9 @@ import net.sourceforge.plantuml.skin.VisibilityModifier;
 
 public class CommandHideShowByVisibility extends SingleLineCommand2<UmlDiagram> {
 
-	public CommandHideShowByVisibility() {
+	public static final CommandHideShowByVisibility ME = new CommandHideShowByVisibility();
+
+	private CommandHideShowByVisibility() {
 		super(getRegexConcat());
 	}
 

src/net/sourceforge/plantuml/command/CommandAffineTransform.java

@@ -46,7 +46,9 @@ import net.sourceforge.plantuml.command.regex.RegexResult;
 
 public class CommandAffineTransform extends SingleLineCommand2<UmlDiagram> {
 
-	public CommandAffineTransform() {
+	public static final CommandAffineTransform ME = new CommandAffineTransform();
+
+	private CommandAffineTransform() {
 		super(getRegexConcat());
 	}
 

src/net/sourceforge/plantuml/command/CommandAffineTransformMultiline.java

@@ -39,7 +39,9 @@ import net.sourceforge.plantuml.TitledDiagram;
 
 public class CommandAffineTransformMultiline extends CommandMultilines<TitledDiagram> {
 
-	public CommandAffineTransformMultiline() {
+	public static final CommandAffineTransformMultiline ME = new CommandAffineTransformMultiline();
+
+	private CommandAffineTransformMultiline() {
 		super("^!transformation[%s]+\\{[%s]*$");
 	}
 

src/net/sourceforge/plantuml/command/CommandAssumeTransparent.java

@@ -44,7 +44,9 @@ import net.sourceforge.plantuml.command.regex.RegexResult;
 
 public class CommandAssumeTransparent extends SingleLineCommand2<TitledDiagram> {
 
-	public CommandAssumeTransparent() {
+	public static final CommandAssumeTransparent ME = new CommandAssumeTransparent();
+
+	private CommandAssumeTransparent() {
 		super(getRegexConcat());
 	}
 

src/net/sourceforge/plantuml/command/CommandCaption.java

@@ -49,7 +49,9 @@ import net.sourceforge.plantuml.graphic.VerticalAlignment;
 
 public class CommandCaption extends SingleLineCommand2<TitledDiagram> {
 
-	public CommandCaption() {
+	public static final CommandCaption ME = new CommandCaption();
+
+	private CommandCaption() {
 		super(getRegexConcat());
 	}
 

src/net/sourceforge/plantuml/command/CommandFooter.java

@@ -49,7 +49,9 @@ import net.sourceforge.plantuml.graphic.HorizontalAlignment;
 
 public class CommandFooter extends SingleLineCommand2<TitledDiagram> {
 
-	public CommandFooter() {
+	public static final CommandFooter ME = new CommandFooter();
+
+	private CommandFooter() {
 		super(getRegexConcat());
 	}
 

src/net/sourceforge/plantuml/command/CommandHeader.java

@@ -49,7 +49,9 @@ import net.sourceforge.plantuml.graphic.HorizontalAlignment;
 
 public class CommandHeader extends SingleLineCommand2<TitledDiagram> {
 
-	public CommandHeader() {
+	public static final CommandHeader ME = new CommandHeader();
+
+	private CommandHeader() {
 		super(getRegexConcat());
 	}
 

src/net/sourceforge/plantuml/command/CommandLegend.java

@@ -49,7 +49,9 @@ import net.sourceforge.plantuml.graphic.VerticalAlignment;
 
 public class CommandLegend extends SingleLineCommand2<TitledDiagram> {
 
-	public CommandLegend() {
+	public static final CommandLegend ME = new CommandLegend();
+
+	private CommandLegend() {
 		super(getRegexConcat());
 	}
 

src/net/sourceforge/plantuml/command/CommandMainframe.java

@@ -46,7 +46,9 @@ import net.sourceforge.plantuml.cucadiagram.Display;
 
 public class CommandMainframe extends SingleLineCommand2<TitledDiagram> {
 
-	public CommandMainframe() {
+	public static final CommandMainframe ME = new CommandMainframe();
+
+	private CommandMainframe() {
 		super(getRegexConcat());
 	}
 

src/net/sourceforge/plantuml/command/CommandMinwidth.java

@@ -44,7 +44,9 @@ import net.sourceforge.plantuml.command.regex.RegexResult;
 
 public class CommandMinwidth extends SingleLineCommand2<UmlDiagram> {
 
-	public CommandMinwidth() {
+	public static final CommandMinwidth ME = new CommandMinwidth();
+
+	private CommandMinwidth() {
 		super(getRegexConcat());
 	}
 

src/net/sourceforge/plantuml/command/CommandMultilinesCaption.java

@@ -44,7 +44,9 @@ import net.sourceforge.plantuml.ugraphic.color.NoSuchColorException;
 
 public class CommandMultilinesCaption extends CommandMultilines<TitledDiagram> {
 
-	public CommandMultilinesCaption() {
+	public static final CommandMultilinesCaption ME = new CommandMultilinesCaption();
+
+	private CommandMultilinesCaption() {
 		super("^caption$");
 	}
 
@@ -58,7 +60,8 @@ public class CommandMultilinesCaption extends CommandMultilines<TitledDiagram> {
 		lines = lines.removeEmptyColumns();
 		final Display strings = lines.toDisplay();
 		if (strings.size() > 0) {
-			diagram.setCaption(DisplayPositioned.single(strings.replaceBackslashT(), HorizontalAlignment.CENTER, VerticalAlignment.BOTTOM));
+			diagram.setCaption(DisplayPositioned.single(strings.replaceBackslashT(), HorizontalAlignment.CENTER,
+					VerticalAlignment.BOTTOM));
 			return CommandExecutionResult.ok();
 		}
 		return CommandExecutionResult.error("No caption defined");

src/net/sourceforge/plantuml/command/CommandMultilinesFooter.java

@@ -45,7 +45,9 @@ import net.sourceforge.plantuml.ugraphic.color.NoSuchColorException;
 
 public class CommandMultilinesFooter extends CommandMultilines<TitledDiagram> {
 
-	public CommandMultilinesFooter() {
+	public static final CommandMultilinesFooter ME = new CommandMultilinesFooter();
+
+	private CommandMultilinesFooter() {
 		super("^(?:(left|right|center)?[%s]*)footer$");
 	}
 

src/net/sourceforge/plantuml/command/CommandMultilinesHeader.java

@@ -45,7 +45,9 @@ import net.sourceforge.plantuml.ugraphic.color.NoSuchColorException;
 
 public class CommandMultilinesHeader extends CommandMultilines<TitledDiagram> {
 
-	public CommandMultilinesHeader() {
+	public static final CommandMultilinesHeader ME = new CommandMultilinesHeader();
+
+	private CommandMultilinesHeader() {
 		super("^(?:(left|right|center)?[%s]*)header$");
 	}
 

src/net/sourceforge/plantuml/command/CommandMultilinesLegend.java

@@ -49,7 +49,9 @@ import net.sourceforge.plantuml.ugraphic.color.NoSuchColorException;
 
 public class CommandMultilinesLegend extends CommandMultilines2<TitledDiagram> {
 
-	public CommandMultilinesLegend() {
+	public static final CommandMultilinesLegend ME = new CommandMultilinesLegend();
+
+	private CommandMultilinesLegend() {
 		super(getRegexConcat(), MultilinesStrategy.REMOVE_STARTING_QUOTE, Trim.BOTH);
 	}
 

src/net/sourceforge/plantuml/command/CommandMultilinesTitle.java

@@ -44,7 +44,9 @@ import net.sourceforge.plantuml.ugraphic.color.NoSuchColorException;
 
 public class CommandMultilinesTitle extends CommandMultilines<TitledDiagram> {
 
-	public CommandMultilinesTitle() {
+	public static final CommandMultilinesTitle ME = new CommandMultilinesTitle();
+
+	private CommandMultilinesTitle() {
 		super("^title$");
 	}
 
@@ -58,7 +60,8 @@ public class CommandMultilinesTitle extends CommandMultilines<TitledDiagram> {
 		lines = lines.removeEmptyColumns();
 		final Display strings = lines.toDisplay();
 		if (strings.size() > 0) {
-			diagram.setTitle(DisplayPositioned.single(strings.replaceBackslashT(), HorizontalAlignment.CENTER, VerticalAlignment.TOP));
+			diagram.setTitle(DisplayPositioned.single(strings.replaceBackslashT(), HorizontalAlignment.CENTER,
+					VerticalAlignment.TOP));
 			return CommandExecutionResult.ok();
 		}
 		return CommandExecutionResult.error("No title defined");

src/net/sourceforge/plantuml/command/CommandNamespace.java

@@ -60,6 +60,8 @@ import net.sourceforge.plantuml.ugraphic.color.NoSuchColorException;
 
 public class CommandNamespace extends SingleLineCommand2<ClassDiagram> {
 
+	public static final String NAMESPACE_REGEX = "([%pLN_][-%pLN_.:\\\\/]*)";
+
 	public CommandNamespace() {
 		super(getRegexConcat());
 	}
@@ -68,7 +70,7 @@ public class CommandNamespace extends SingleLineCommand2<ClassDiagram> {
 		return RegexConcat.build(CommandNamespace.class.getName(), RegexLeaf.start(), //
 				new RegexLeaf("namespace"), //
 				RegexLeaf.spaceOneOrMore(), //
-				new RegexLeaf("NAME", "([%pLN_][-%pLN_.:\\\\]*)"), //
+				new RegexLeaf("NAME", NAMESPACE_REGEX), //
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("STEREOTYPE", "(\\<\\<.*\\>\\>)?"), //
 				RegexLeaf.spaceZeroOrMore(), //

src/net/sourceforge/plantuml/command/CommandNamespace2.java

@@ -74,7 +74,7 @@ public class CommandNamespace2 extends SingleLineCommand2<ClassDiagram> {
 				new RegexLeaf("as"), //
 				RegexLeaf.spaceOneOrMore(), //
 
-				new RegexLeaf("NAME", "([%pLN_][-%pLN_.:\\\\]*)"), //
+				new RegexLeaf("NAME", CommandNamespace.NAMESPACE_REGEX), //
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("STEREOTYPE", "(\\<\\<.*\\>\\>)?"), //
 				RegexLeaf.spaceZeroOrMore(), //
@@ -110,8 +110,7 @@ public class CommandNamespace2 extends SingleLineCommand2<ClassDiagram> {
 
 		final String color = arg.get("COLOR", 0);
 		if (color != null) {
-			p.setSpecificColorTOBEREMOVED(ColorType.BACK,
+			p.setSpecificColorTOBEREMOVED(ColorType.BACK, diagram.getSkinParam().getIHtmlColorSet().getColor(color));
-					diagram.getSkinParam().getIHtmlColorSet().getColor(color));
 		}
 		return CommandExecutionResult.ok();
 	}

src/net/sourceforge/plantuml/command/CommandNamespaceEmpty.java

@@ -66,7 +66,7 @@ public class CommandNamespaceEmpty extends SingleLineCommand2<ClassDiagram> {
 		return RegexConcat.build(CommandNamespaceEmpty.class.getName(), RegexLeaf.start(), //
 				new RegexLeaf("namespace"), //
 				RegexLeaf.spaceOneOrMore(), //
-				new RegexLeaf("NAME", "([%pLN_][-%pLN_.:\\\\]*)"), //
+				new RegexLeaf("NAME", CommandNamespace.NAMESPACE_REGEX), //
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("STEREOTYPE", "(\\<\\<.*\\>\\>)?"), //
 				RegexLeaf.spaceZeroOrMore(), //
@@ -104,8 +104,7 @@ public class CommandNamespaceEmpty extends SingleLineCommand2<ClassDiagram> {
 
 		final String color = arg.get("COLOR", 0);
 		if (color != null) {
-			p.setSpecificColorTOBEREMOVED(ColorType.BACK,
+			p.setSpecificColorTOBEREMOVED(ColorType.BACK, diagram.getSkinParam().getIHtmlColorSet().getColor(color));
-					diagram.getSkinParam().getIHtmlColorSet().getColor(color));
 		}
 		diagram.endGroup();
 		return CommandExecutionResult.ok();

src/net/sourceforge/plantuml/command/CommandNope.java

@@ -44,7 +44,9 @@ import net.sourceforge.plantuml.core.Diagram;
 
 public class CommandNope extends SingleLineCommand2<Diagram> {
 
-	public CommandNope() {
+	public static final CommandNope ME = new CommandNope();
+
+	private CommandNope() {
 		super(getRegexConcat());
 	}
 

src/net/sourceforge/plantuml/command/CommandPage.java

@@ -44,7 +44,9 @@ import net.sourceforge.plantuml.command.regex.RegexResult;
 
 public class CommandPage extends SingleLineCommand2<AbstractPSystem> {
 
-	public CommandPage() {
+	public static final CommandPage ME = new CommandPage();
+
+	private CommandPage() {
 		super(getRegexConcat());
 	}
 
@@ -60,14 +62,13 @@ public class CommandPage extends SingleLineCommand2<AbstractPSystem> {
 	}
 
 	@Override
-	protected CommandExecutionResult executeArg(AbstractPSystem system, LineLocation location,
+	protected CommandExecutionResult executeArg(AbstractPSystem system, LineLocation location, RegexResult arg) {
-			RegexResult arg) {
 
 		final int horizontal = Integer.parseInt(arg.get("NB1", 0));
 		final int vertical = Integer.parseInt(arg.get("NB2", 0));
-		if (horizontal <= 0 || vertical <= 0) {
+		if (horizontal <= 0 || vertical <= 0)
 			return CommandExecutionResult.error("Argument must be positive");
-		}
+
 		system.setSplitPagesHorizontal(horizontal);
 		system.setSplitPagesVertical(vertical);
 		return CommandExecutionResult.ok();

src/net/sourceforge/plantuml/command/CommandPragma.java

@@ -49,7 +49,9 @@ import net.sourceforge.plantuml.cucadiagram.dot.GraphvizUtils;
 
 public class CommandPragma extends SingleLineCommand2<TitledDiagram> {
 
-	public CommandPragma() {
+	public static final CommandPragma ME = new CommandPragma();
+
+	private CommandPragma() {
 		super(getRegexConcat());
 	}
 

src/net/sourceforge/plantuml/command/CommandRotate.java

@@ -44,7 +44,9 @@ import net.sourceforge.plantuml.command.regex.RegexResult;
 
 public class CommandRotate extends SingleLineCommand2<UmlDiagram> {
 
-	public CommandRotate() {
+	public static final CommandRotate ME = new CommandRotate();
+
+	private CommandRotate() {
 		super(getRegexConcat());
 	}
 

src/net/sourceforge/plantuml/command/CommandScale.java

@@ -46,7 +46,9 @@ import net.sourceforge.plantuml.command.regex.RegexResult;
 
 public class CommandScale extends SingleLineCommand2<AbstractPSystem> {
 
-	public CommandScale() {
+	public static final CommandScale ME = new CommandScale();
+
+	private CommandScale() {
 		super(getRegexConcat());
 	}
 

src/net/sourceforge/plantuml/command/CommandScaleMaxHeight.java

@@ -45,7 +45,9 @@ import net.sourceforge.plantuml.command.regex.RegexResult;
 
 public class CommandScaleMaxHeight extends SingleLineCommand2<AbstractPSystem> {
 
-	public CommandScaleMaxHeight() {
+	public static final CommandScaleMaxHeight ME = new CommandScaleMaxHeight();
+
+	private CommandScaleMaxHeight() {
 		super(getRegexConcat());
 	}
 

src/net/sourceforge/plantuml/command/CommandScaleMaxWidth.java

@@ -45,7 +45,9 @@ import net.sourceforge.plantuml.command.regex.RegexResult;
 
 public class CommandScaleMaxWidth extends SingleLineCommand2<AbstractPSystem> {
 
-	public CommandScaleMaxWidth() {
+	public static final CommandScaleMaxWidth ME = new CommandScaleMaxWidth();
+
+	private CommandScaleMaxWidth() {
 		super(getRegexConcat());
 	}
 

src/net/sourceforge/plantuml/command/CommandScaleMaxWidthAndHeight.java

@@ -45,7 +45,9 @@ import net.sourceforge.plantuml.command.regex.RegexResult;
 
 public class CommandScaleMaxWidthAndHeight extends SingleLineCommand2<AbstractPSystem> {
 
-	public CommandScaleMaxWidthAndHeight() {
+	public static final CommandScaleMaxWidthAndHeight ME = new CommandScaleMaxWidthAndHeight();
+
+	private CommandScaleMaxWidthAndHeight() {
 		super(getRegexConcat());
 	}
 

src/net/sourceforge/plantuml/command/CommandScaleWidthAndHeight.java

@@ -45,7 +45,9 @@ import net.sourceforge.plantuml.command.regex.RegexResult;
 
 public class CommandScaleWidthAndHeight extends SingleLineCommand2<AbstractPSystem> {
 
-	public CommandScaleWidthAndHeight() {
+	public static final CommandScaleWidthAndHeight ME = new CommandScaleWidthAndHeight();
+
+	private CommandScaleWidthAndHeight() {
 		super(getRegexConcat());
 	}
 

src/net/sourceforge/plantuml/command/CommandScaleWidthOrHeight.java

@@ -46,7 +46,9 @@ import net.sourceforge.plantuml.command.regex.RegexResult;
 
 public class CommandScaleWidthOrHeight extends SingleLineCommand2<AbstractPSystem> {
 
-	public CommandScaleWidthOrHeight() {
+	public static final CommandScaleWidthOrHeight ME = new CommandScaleWidthOrHeight();
+
+	private CommandScaleWidthOrHeight() {
 		super(getRegexConcat());
 	}
 

src/net/sourceforge/plantuml/command/CommandSkinParam.java

@@ -45,7 +45,9 @@ import net.sourceforge.plantuml.style.NoStyleAvailableException;
 
 public class CommandSkinParam extends SingleLineCommand2<TitledDiagram> {
 
-	public CommandSkinParam() {
+	public static final CommandSkinParam ME = new CommandSkinParam();
+
+	private CommandSkinParam() {
 		super(getRegexConcat());
 	}
 

src/net/sourceforge/plantuml/command/CommandSkinParamMultilines.java

@@ -42,16 +42,18 @@ import net.sourceforge.plantuml.command.regex.MyPattern;
 
 public class CommandSkinParamMultilines extends CommandMultilinesBracket<TitledDiagram> {
 
-	public CommandSkinParamMultilines() {
+	public static final CommandSkinParamMultilines ME = new CommandSkinParamMultilines();
+
+	private CommandSkinParamMultilines() {
 		super("^skinparam[%s]*(?:[%s]+([\\w.]*(?:\\<\\<.*\\>\\>)?[\\w.]*))?[%s]*\\{$");
 	}
 
 	@Override
 	protected boolean isLineConsistent(String line, int level) {
 		line = StringUtils.trin(line);
-		if (hasStartingQuote(line)) {
+		if (hasStartingQuote(line))
 			return true;
-		}
+
 		return SkinLoader.p1.matcher(line).matches();
 	}
 
@@ -64,9 +66,9 @@ public class CommandSkinParamMultilines extends CommandMultilinesBracket<TitledD
 		final SkinLoader skinLoader = new SkinLoader(diagram);
 
 		final Matcher2 mStart = getStartingPattern().matcher(lines.getFirst().getTrimmed().getString());
-		if (mStart.find() == false) {
+		if (mStart.find() == false)
 			throw new IllegalStateException();
-		}
+
 		final String group1 = mStart.group(1);
 
 		return skinLoader.execute(lines, group1);

src/net/sourceforge/plantuml/command/CommandSpriteFile.java

@@ -58,7 +58,9 @@ import net.sourceforge.plantuml.sprite.SpriteSvg;
 
 public class CommandSpriteFile extends SingleLineCommand2<TitledDiagram> {
 
-	public CommandSpriteFile() {
+	public static final CommandSpriteFile ME = new CommandSpriteFile();
+
+	private CommandSpriteFile() {
 		super(getRegexConcat());
 	}
 

src/net/sourceforge/plantuml/command/CommandSpriteSvg.java

@@ -45,7 +45,9 @@ import net.sourceforge.plantuml.emoji.SvgNanoParser;
 
 public class CommandSpriteSvg extends SingleLineCommand2<TitledDiagram> {
 
-	public CommandSpriteSvg() {
+	public static final CommandSpriteSvg ME = new CommandSpriteSvg();
+
+	private CommandSpriteSvg() {
 		super(getRegexConcat());
 	}
 

src/net/sourceforge/plantuml/command/CommandSpriteSvgMultiline.java

@@ -46,7 +46,9 @@ import net.sourceforge.plantuml.ugraphic.color.NoSuchColorException;
 
 public class CommandSpriteSvgMultiline extends CommandMultilines2<TitledDiagram> {
 
-	public CommandSpriteSvgMultiline() {
+	public static final CommandSpriteSvgMultiline ME = new CommandSpriteSvgMultiline();
+
+	private CommandSpriteSvgMultiline() {
 		super(getRegexConcat(), MultilinesStrategy.KEEP_STARTING_QUOTE, Trim.BOTH);
 	}
 

src/net/sourceforge/plantuml/command/CommandTitle.java

@@ -49,7 +49,9 @@ import net.sourceforge.plantuml.graphic.VerticalAlignment;
 
 public class CommandTitle extends SingleLineCommand2<TitledDiagram> {
 
-	public CommandTitle() {
+	public static final CommandTitle ME = new CommandTitle();
+
+	private CommandTitle() {
 		super(getRegexConcat());
 	}
 

src/net/sourceforge/plantuml/command/CommonCommands.java

@@ -56,56 +56,56 @@ public final class CommonCommands {
 	}
 
 	static public void addCommonCommands2(List<Command> cmds) {
-		cmds.add(new CommandNope());
+		cmds.add(CommandNope.ME);
-		cmds.add(new CommandPragma());
+		cmds.add(CommandPragma.ME);
-		cmds.add(new CommandAssumeTransparent());
+		cmds.add(CommandAssumeTransparent.ME);
 
-		cmds.add(new CommandSkinParam());
+		cmds.add(CommandSkinParam.ME);
-		cmds.add(new CommandSkinParamMultilines());
+		cmds.add(CommandSkinParamMultilines.ME);
-		cmds.add(new CommandSkin());
+		cmds.add(CommandSkin.ME);
-		cmds.add(new CommandMinwidth());
+		cmds.add(CommandMinwidth.ME);
-		cmds.add(new CommandPage());
+		cmds.add(CommandPage.ME);
-		cmds.add(new CommandRotate());
+		cmds.add(CommandRotate.ME);
-		cmds.add(new CommandScale());
+		cmds.add(CommandScale.ME);
-		cmds.add(new CommandScaleWidthAndHeight());
+		cmds.add(CommandScaleWidthAndHeight.ME);
-		cmds.add(new CommandScaleWidthOrHeight());
+		cmds.add(CommandScaleWidthOrHeight.ME);
-		cmds.add(new CommandScaleMaxWidth());
+		cmds.add(CommandScaleMaxWidth.ME);
-		cmds.add(new CommandScaleMaxHeight());
+		cmds.add(CommandScaleMaxHeight.ME);
-		cmds.add(new CommandScaleMaxWidthAndHeight());
+		cmds.add(CommandScaleMaxWidthAndHeight.ME);
-		cmds.add(new CommandAffineTransform());
+		cmds.add(CommandAffineTransform.ME);
-		cmds.add(new CommandAffineTransformMultiline());
+		cmds.add(CommandAffineTransformMultiline.ME);
 		final CommandFactorySprite factorySpriteCommand = new CommandFactorySprite();
 		cmds.add(factorySpriteCommand.createMultiLine(false));
 		cmds.add(factorySpriteCommand.createSingleLine());
-		cmds.add(new CommandSpriteSvg());
+		cmds.add(CommandSpriteSvg.ME);
-		cmds.add(new CommandSpriteFile());
+		cmds.add(CommandSpriteFile.ME);
-		cmds.add(new CommandSpriteSvgMultiline());
+		cmds.add(CommandSpriteSvgMultiline.ME);
 
-		cmds.add(new CommandStyleMultilinesCSS());
+		cmds.add(CommandStyleMultilinesCSS.ME);
-		cmds.add(new CommandStyleImport());
+		cmds.add(CommandStyleImport.ME);
 
 	}
 
 	static public void addCommonHides(List<Command> cmds) {
-		cmds.add(new CommandHideEmptyDescription());
+		cmds.add(CommandHideEmptyDescription.ME);
-		cmds.add(new CommandHideShowByVisibility());
+		cmds.add(CommandHideShowByVisibility.ME);
-		cmds.add(new CommandHideShowByGender());
+		cmds.add(CommandHideShowByGender.ME);
 	}
 
 	static public void addTitleCommands(List<Command> cmds) {
-		cmds.add(new CommandTitle());
+		cmds.add(CommandTitle.ME);
-		cmds.add(new CommandMainframe());
+		cmds.add(CommandMainframe.ME);
-		cmds.add(new CommandCaption());
+		cmds.add(CommandCaption.ME);
-		cmds.add(new CommandMultilinesCaption());
+		cmds.add(CommandMultilinesCaption.ME);
-		cmds.add(new CommandMultilinesTitle());
+		cmds.add(CommandMultilinesTitle.ME);
-		cmds.add(new CommandMultilinesLegend());
+		cmds.add(CommandMultilinesLegend.ME);
-		cmds.add(new CommandLegend());
+		cmds.add(CommandLegend.ME);
 
-		cmds.add(new CommandFooter());
+		cmds.add(CommandFooter.ME);
-		cmds.add(new CommandMultilinesFooter());
+		cmds.add(CommandMultilinesFooter.ME);
 
-		cmds.add(new CommandHeader());
+		cmds.add(CommandHeader.ME);
-		cmds.add(new CommandMultilinesHeader());
+		cmds.add(CommandMultilinesHeader.ME);
 	}
 
 }

src/net/sourceforge/plantuml/command/PSystemCommandFactory.java

@@ -35,6 +35,7 @@
  */
 package net.sourceforge.plantuml.command;
 
+import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
@@ -55,9 +56,9 @@ import net.sourceforge.plantuml.version.IteratorCounter2;
 
 public abstract class PSystemCommandFactory extends PSystemAbstractFactory {
 
-	private List<Command> cmds;
+	private final List<Command> cmds = new ArrayList<>();
 
-	protected abstract List<Command> createCommands();
+	protected abstract void initCommandsList(List<Command> cmds);
 
 	public abstract AbstractPSystem createEmptyDiagram(UmlSource source, Map<String, String> skinParam);
 
@@ -149,8 +150,10 @@ public abstract class PSystemCommandFactory extends PSystemAbstractFactory {
 
 	private Step getCandidate(final IteratorCounter2 it) {
 		final BlocLines single = BlocLines.single(it.peek());
-		if (cmds == null)
+		synchronized (cmds) {
-			cmds = createCommands();
+			if (cmds.size() == 0)
+				initCommandsList(cmds);
+		}
 
 		for (Command cmd : cmds) {
 			final CommandControl result = cmd.isValid(single);

src/net/sourceforge/plantuml/command/note/CommandFactoryNote.java

@@ -35,7 +35,6 @@
  */
 package net.sourceforge.plantuml.command.note;
 
-import net.sourceforge.plantuml.ColorParam;
 import net.sourceforge.plantuml.LineLocation;
 import net.sourceforge.plantuml.baraye.IEntity;
 import net.sourceforge.plantuml.classdiagram.AbstractEntityDiagram;
@@ -72,7 +71,7 @@ public final class CommandFactoryNote implements SingleMultiFactoryCommand<Abstr
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("TAGS", Stereotag.pattern() + "?"), //
 				RegexLeaf.spaceZeroOrMore(), //
-				new RegexLeaf("STEREO", "(\\<{2}.*\\>{2})?"), //
+				new RegexLeaf("STEREO", "(\\<\\<.*\\>\\>)?"), //
 				RegexLeaf.spaceZeroOrMore(), //
 				ColorParser.exp1(), //
 				RegexLeaf.end() //
@@ -93,7 +92,7 @@ public final class CommandFactoryNote implements SingleMultiFactoryCommand<Abstr
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("TAGS", Stereotag.pattern() + "?"), //
 				RegexLeaf.spaceZeroOrMore(), //
-				new RegexLeaf("STEREO", "(\\<{2}.*\\>{2})?"), //
+				new RegexLeaf("STEREO", "(\\<\\<.*\\>\\>)?"), //
 				RegexLeaf.spaceZeroOrMore(), //
 				ColorParser.exp1(), //
 				RegexLeaf.end() //

src/net/sourceforge/plantuml/command/note/CommandFactoryNoteOnEntity.java

@@ -94,7 +94,7 @@ public final class CommandFactoryNoteOnEntity implements SingleMultiFactoryComma
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("TAGS1", Stereotag.pattern() + "?"), //
 				RegexLeaf.spaceZeroOrMore(), //
-				new RegexLeaf("STEREO", "(\\<{2}.*\\>{2})?"), //
+				new RegexLeaf("STEREO", "(\\<\\<.*\\>\\>)?"), //
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("TAGS2", Stereotag.pattern() + "?"), //
 				RegexLeaf.spaceZeroOrMore(), //
@@ -129,7 +129,7 @@ public final class CommandFactoryNoteOnEntity implements SingleMultiFactoryComma
 					RegexLeaf.spaceZeroOrMore(), //
 					new RegexLeaf("TAGS1", Stereotag.pattern() + "?"), //
 					RegexLeaf.spaceZeroOrMore(), //
-					new RegexLeaf("STEREO", "(\\<{2}.*\\>{2})?"), //
+					new RegexLeaf("STEREO", "(\\<\\<.*\\>\\>)?"), //
 					RegexLeaf.spaceZeroOrMore(), //
 					new RegexLeaf("TAGS2", Stereotag.pattern() + "?"), //
 					RegexLeaf.spaceZeroOrMore(), //
@@ -155,7 +155,7 @@ public final class CommandFactoryNoteOnEntity implements SingleMultiFactoryComma
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("TAGS1", Stereotag.pattern() + "?"), //
 				RegexLeaf.spaceZeroOrMore(), //
-				new RegexLeaf("STEREO", "(\\<{2}.*\\>{2})?"), //
+				new RegexLeaf("STEREO", "(\\<\\<.*\\>\\>)?"), //
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("TAGS2", Stereotag.pattern() + "?"), //
 				RegexLeaf.spaceZeroOrMore(), //

src/net/sourceforge/plantuml/command/note/CommandFactoryNoteOnLink.java

@@ -68,7 +68,7 @@ public final class CommandFactoryNoteOnLink implements SingleMultiFactoryCommand
 				RegexLeaf.spaceOneOrMore(), //
 				new RegexLeaf("POSITION", "(right|left|top|bottom)?"), //
 				RegexLeaf.spaceZeroOrMore(), //
-				new RegexLeaf("o[nf]"), //
+				new RegexLeaf("(on|of)"), //
 				RegexLeaf.spaceOneOrMore(), //
 				new RegexLeaf("link"), //
 				RegexLeaf.spaceZeroOrMore(), //
@@ -85,7 +85,7 @@ public final class CommandFactoryNoteOnLink implements SingleMultiFactoryCommand
 				RegexLeaf.spaceOneOrMore(), //
 				new RegexLeaf("POSITION", "(right|left|top|bottom)?"), //
 				RegexLeaf.spaceZeroOrMore(), //
-				new RegexLeaf("o[nf]"), //
+				new RegexLeaf("(on|of)"), //
 				RegexLeaf.spaceOneOrMore(), //
 				new RegexLeaf("link"), //
 				RegexLeaf.spaceZeroOrMore(), //

src/net/sourceforge/plantuml/command/note/CommandFactoryTipOnEntity.java

@@ -90,7 +90,7 @@ public final class CommandFactoryTipOnEntity implements SingleMultiFactoryComman
 					RegexLeaf.spaceZeroOrMore(), //
 					new RegexLeaf("TAGS1", Stereotag.pattern() + "?"), //
 					RegexLeaf.spaceZeroOrMore(), //
-					new RegexLeaf("STEREO", "(\\<{2}.*\\>{2})?"), //
+					new RegexLeaf("STEREO", "(\\<\\<.*\\>\\>)?"), //
 					RegexLeaf.spaceZeroOrMore(), //
 					new RegexLeaf("TAGS2", Stereotag.pattern() + "?"), //
 					RegexLeaf.spaceZeroOrMore(), //
@@ -113,7 +113,7 @@ public final class CommandFactoryTipOnEntity implements SingleMultiFactoryComman
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("TAGS1", Stereotag.pattern() + "?"), //
 				RegexLeaf.spaceZeroOrMore(), //
-				new RegexLeaf("STEREO", "(\\<{2}.*\\>{2})?"), //
+				new RegexLeaf("STEREO", "(\\<\\<.*\\>\\>)?"), //
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("TAGS2", Stereotag.pattern() + "?"), //
 				RegexLeaf.spaceZeroOrMore(), //

src/net/sourceforge/plantuml/command/note/sequence/FactorySequenceNoteAcrossCommand.java

@@ -71,7 +71,7 @@ public final class FactorySequenceNoteAcrossCommand implements SingleMultiFactor
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("STYLE", "(note|hnote|rnote)"), //
 				RegexLeaf.spaceZeroOrMore(), //
-				new RegexLeaf("STEREO", "(\\<{2}.*\\>{2})?"), //
+				new RegexLeaf("STEREO", "(\\<\\<.*\\>\\>)?"), //
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("ACROSS", "(accross|across)"), //
 				RegexLeaf.spaceZeroOrMore(), //
@@ -87,7 +87,7 @@ public final class FactorySequenceNoteAcrossCommand implements SingleMultiFactor
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("STYLE", "(note|hnote|rnote)"), //
 				RegexLeaf.spaceZeroOrMore(), //
-				new RegexLeaf("STEREO", "(\\<{2}.*\\>{2})?"), //
+				new RegexLeaf("STEREO", "(\\<\\<.*\\>\\>)?"), //
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("ACROSS", "(accross|across)"), //
 				RegexLeaf.spaceZeroOrMore(), //

src/net/sourceforge/plantuml/command/note/sequence/FactorySequenceNoteCommand.java

@@ -74,7 +74,7 @@ public final class FactorySequenceNoteCommand implements SingleMultiFactoryComma
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("STYLE", "(note|hnote|rnote)"), //
 				RegexLeaf.spaceZeroOrMore(), //
-				new RegexLeaf("STEREO", "(\\<{2}.*\\>{2})?"), //
+				new RegexLeaf("STEREO", "(\\<\\<.*\\>\\>)?"), //
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("POSITION", "(right|left|over)"), //
 				RegexLeaf.spaceOneOrMore(), //
@@ -92,7 +92,7 @@ public final class FactorySequenceNoteCommand implements SingleMultiFactoryComma
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("STYLE", "(note|hnote|rnote)"), //
 				RegexLeaf.spaceZeroOrMore(), //
-				new RegexLeaf("STEREO", "(\\<{2}.*\\>{2})?"), //
+				new RegexLeaf("STEREO", "(\\<\\<.*\\>\\>)?"), //
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("POSITION", "(right|left|over)"), //
 				RegexLeaf.spaceOneOrMore(), //

src/net/sourceforge/plantuml/command/note/sequence/FactorySequenceNoteOnArrowCommand.java

@@ -75,7 +75,7 @@ public final class FactorySequenceNoteOnArrowCommand implements SingleMultiFacto
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("STYLE", "(note|hnote|rnote)"), //
 				RegexLeaf.spaceZeroOrMore(), //
-				new RegexLeaf("STEREO", "(\\<{2}.*\\>{2})?"), //
+				new RegexLeaf("STEREO", "(\\<\\<.*\\>\\>)?"), //
 				RegexLeaf.spaceOneOrMore(), //
 				new RegexLeaf("POSITION", "(right|left|bottom|top)"), //
 				RegexLeaf.spaceZeroOrMore(), //
@@ -89,7 +89,7 @@ public final class FactorySequenceNoteOnArrowCommand implements SingleMultiFacto
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("STYLE", "(note|hnote|rnote)"), //
 				RegexLeaf.spaceZeroOrMore(), //
-				new RegexLeaf("STEREO", "(\\<{2}.*\\>{2})?"), //
+				new RegexLeaf("STEREO", "(\\<\\<.*\\>\\>)?"), //
 				RegexLeaf.spaceOneOrMore(), //
 				new RegexLeaf("POSITION", "(right|left|bottom|top)"), //
 				RegexLeaf.spaceZeroOrMore(), //

src/net/sourceforge/plantuml/command/note/sequence/FactorySequenceNoteOverSeveralCommand.java

@@ -73,7 +73,7 @@ public final class FactorySequenceNoteOverSeveralCommand implements SingleMultiF
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("STYLE", "(note|hnote|rnote)"), //
 				RegexLeaf.spaceZeroOrMore(), //
-				new RegexLeaf("STEREO1", "(\\<{2}.*\\>{2})?"), //
+				new RegexLeaf("STEREO1", "(\\<\\<.*\\>\\>)?"), //
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("over"), //
 				RegexLeaf.spaceOneOrMore(), //
@@ -83,7 +83,7 @@ public final class FactorySequenceNoteOverSeveralCommand implements SingleMultiF
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("P2", "([%pLN_.@]+|[%g][^%g]+[%g])"), //
 				RegexLeaf.spaceZeroOrMore(), //
-				new RegexLeaf("STEREO2", "(\\<{2}.*\\>{2})?"), //
+				new RegexLeaf("STEREO2", "(\\<\\<.*\\>\\>)?"), //
 				RegexLeaf.spaceZeroOrMore(), //
 				color().getRegex(), //
 				RegexLeaf.spaceZeroOrMore(), //
@@ -98,7 +98,7 @@ public final class FactorySequenceNoteOverSeveralCommand implements SingleMultiF
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("STYLE", "(note|hnote|rnote)"), //
 				RegexLeaf.spaceZeroOrMore(), //
-				new RegexLeaf("STEREO1", "(\\<{2}.*\\>{2})?"), //
+				new RegexLeaf("STEREO1", "(\\<\\<.*\\>\\>)?"), //
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("over"), //
 				RegexLeaf.spaceOneOrMore(), //
@@ -108,7 +108,7 @@ public final class FactorySequenceNoteOverSeveralCommand implements SingleMultiF
 				RegexLeaf.spaceZeroOrMore(), //
 				new RegexLeaf("P2", "([%pLN_.@]+|[%g][^%g]+[%g])"), //
 				RegexLeaf.spaceZeroOrMore(), //
-				new RegexLeaf("STEREO2", "(\\<{2}.*\\>{2})?"), //
+				new RegexLeaf("STEREO2", "(\\<\\<.*\\>\\>)?"), //
 				RegexLeaf.spaceZeroOrMore(), //
 				color().getRegex(), //
 				RegexLeaf.spaceZeroOrMore(), //

src/net/sourceforge/plantuml/command/regex/FoxSignature.java

@@ -38,53 +38,101 @@ package net.sourceforge.plantuml.command.regex;
 public class FoxSignature {
 
 	private static final long masks[] = new long[127];
+	private static final long MASK_SPACES;
+	private static final long MASK_SPECIAL1;
 
 	static {
 		final String full = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0!\"#$%&\'()*+,-./:;<=>?@[\\]^_{|}~";
 		long m = 1L;
+		MASK_SPACES = m;
+		m = m << 1;
+		MASK_SPECIAL1 = m;
+		m = m << 1;
 		for (int i = 0; i < full.length(); i++) {
 			char ch = full.charAt(i);
 			masks[ch] = m;
 			if (ch >= 'A' && ch <= 'Z') {
 				ch = (char) (ch + ('a' - 'A'));
 				masks[ch] = m;
-			}
+			} else if (ch == '.' || ch == '=' || ch == '-' || ch == '~')
+				masks[ch] |= MASK_SPECIAL1;
 			m = m << 1;
 		}
+		masks[' '] = MASK_SPACES;
+		masks['\t'] = MASK_SPACES;
+		masks['\r'] = MASK_SPACES;
+		masks['\n'] = MASK_SPACES;
+		masks['\f'] = MASK_SPACES;
+
+	}
+
+	public static long getSpecialSpaces() {
+		return MASK_SPACES;
+	}
+
+	public static long getSpecial1() {
+		return MASK_SPECIAL1;
 	}
 
 	public static void printMe() {
-		for (int i = 0; i < masks.length; i++) {
+		for (int i = 0; i < masks.length; i++)
 			if (masks[i] > 0) {
 				final char ch = (char) i;
 				System.err.println("ch=" + ch + " " + masks[i]);
 			}
-		}
+
 	}
 
 	private static long getMask(char ch) {
-		if (ch < masks.length) {
+		if (ch < masks.length)
 			return masks[ch];
-		}
+		else if (ch == '\u00A0')
+			return MASK_SPACES;
+
 		return 0L;
 	}
 
-	public static long getFoxSignature(String s) {
+	public static long getFoxSignatureFromRealString(String s) {
+		long result = 0;
+		for (int i = 0; i < s.length(); i++)
+			result = result | getMask(s.charAt(i));
+		return result;
+	}
+
+	public static long getFoxSignatureFromRegex(String s) {
 		long result = 0;
 		for (int i = 0; i < s.length(); i++) {
-			result = result | getMask(s.charAt(i));
+			if (s.charAt(i) == '.') {
+				if (s.charAt(i + 1) == '+' || s.charAt(i + 1) == '*')
+					i++;
+				else
+					throw new IllegalArgumentException(s);
+			} else if (s.charAt(i) == '\\') {
+				if (s.charAt(i + 1) == 'b')
+					i++;
+				else if (Character.isLetterOrDigit(s.charAt(i + 1)))
+					throw new IllegalArgumentException(s);
+			} else {
+				if (i + 1 < s.length() && (s.charAt(i + 1) == '?' || s.charAt(i + 1) == '*')) {
+					i++;
+					continue;
+				}
+				result = result | getMask(s.charAt(i));
+				if (i + 1 < s.length() && s.charAt(i + 1) == '+') {
+					i++;
+				}
+			}
 		}
 		return result;
 	}
 
 	public static String backToString(long check) {
 		final StringBuilder sb = new StringBuilder();
-		for (int i = 0; i < masks.length; i++) {
+		for (int i = 0; i < masks.length; i++)
 			if (masks[i] != 0L && (check & masks[i]) != 0L) {
 				final char ch = (char) i;
 				sb.append(ch);
 			}
-		}
 		return sb.toString();
 	}
 

src/net/sourceforge/plantuml/command/regex/RegexComposed.java

@@ -41,14 +41,16 @@ import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
-import java.util.concurrent.atomic.AtomicInteger;
 import java.util.concurrent.atomic.AtomicReference;
 
 import net.sourceforge.plantuml.StringLocated;
 
 public abstract class RegexComposed implements IRegex {
 
-	protected static final AtomicInteger nbCreateMatches = new AtomicInteger();
+//	protected static final AtomicInteger nbCreateMatches = new AtomicInteger();
+//	protected static final AtomicInteger vtot = new AtomicInteger();
+//	protected static final AtomicInteger vescaped = new AtomicInteger();
+
 	private final List<IRegex> partials;
 
 	protected final List<IRegex> partials() {
@@ -78,7 +80,7 @@ public abstract class RegexComposed implements IRegex {
 	}
 
 	public Map<String, RegexPartialMatch> createPartialMatch(Iterator<String> it) {
-		nbCreateMatches.incrementAndGet();
+		// nbCreateMatches.incrementAndGet();
 		final Map<String, RegexPartialMatch> result = new HashMap<String, RegexPartialMatch>();
 		for (IRegex r : partials)
 			result.putAll(r.createPartialMatch(it));

src/net/sourceforge/plantuml/command/regex/RegexConcat.java

@@ -35,34 +35,38 @@
  */
 package net.sourceforge.plantuml.command.regex;
 
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.ConcurrentMap;
 import java.util.concurrent.atomic.AtomicLong;
 
-import net.sourceforge.plantuml.Log;
 import net.sourceforge.plantuml.StringLocated;
 
 public final class RegexConcat extends RegexComposed implements IRegex {
 
-	private static final ConcurrentMap<Object, RegexConcat> cache = new ConcurrentHashMap<Object, RegexConcat>();
 	private final AtomicLong foxRegex = new AtomicLong(-1L);
 	private int limitSize;
 
 	// private static final Set<String> PRINTED2 = new HashSet<>();
 
 	public static void printCacheInfo() {
-		int nbCompiled = 0;
+//		if (OptionFlags.getInstance().isVerbose())
-		int nbInvoked = 0;
+//			synchronized (cache) {
-		for (RegexConcat reg : cache.values()) {
+//
-			if (reg.isCompiled())
+//				final NumberFormat nf = NumberFormat.getInstance(Locale.US);
-				nbCompiled++;
+//
-
+//				int nbCompiled = 0;
-			if (reg.invoked())
+//				int nbInvoked = 0;
-				nbInvoked++;
+//				for (RegexConcat reg : cache.values()) {
-
+//					if (reg.isCompiled())
-		}
+//						nbCompiled++;
-		Log.info("Regex total/invoked/compiled " + cache.size() + "/" + nbInvoked + "/" + nbCompiled);
+//
-		Log.info("Matches created " + nbCreateMatches.get());
+//					if (reg.invoked())
+//						nbInvoked++;
+//
+//				}
+//				Log.info("Regex total/invoked/compiled " + nf.format(cache.size()) + "/" + nf.format(nbInvoked) + "/"
+//						+ nf.format(nbCompiled));
+//				Log.info("Matches escaped " + nf.format(vescaped.get()) + "/" + nf.format(vtot.get()));
+//				Log.info("Matches created " + nf.format(nbCreateMatches.get()));
+//			}
 	}
 
 	public RegexConcat(IRegex... partials) {
@@ -70,7 +74,8 @@ public final class RegexConcat extends RegexComposed implements IRegex {
 	}
 
 	private long foxRegex() {
-		if (foxRegex.get() == -1L) {
+		final long result = foxRegex.get();
+		if (result == -1L) {
 			long tmp = 0L;
 			for (int i = 1; i < partials().size() - 1; i++) {
 				final IRegex part = partials().get(i);
@@ -80,26 +85,27 @@ public final class RegexConcat extends RegexComposed implements IRegex {
 				}
 			}
 			foxRegex.set(tmp);
+			return tmp;
 		}
-		return foxRegex.get();
+		return result;
 	}
 
 	public static RegexConcat build(String key, IRegex... partials) {
-		// return buildInternal(partials);
+		return buildInternal(partials);
-		RegexConcat result = cache.get(key);
+//		RegexConcat result = cache.get(key);
-		if (result == null) {
+//		if (result == null) {
-			cache.putIfAbsent(key, buildInternal(partials));
+//			cache.putIfAbsent(key, buildInternal(partials));
-			result = cache.get(key);
+//			result = cache.get(key);
-			// System.err.println("cache size=" + cache.size());
+//			// System.err.println("cache size=" + cache.size());
-			// } else {
+//			// } else {
-			// synchronized (PRINTED2) {
+//			// synchronized (PRINTED2) {
-			// if (PRINTED2.contains(key) == false) {
+//			// if (PRINTED2.contains(key) == false) {
-			// System.err.println("if (key.equals(\"" + key + "\")) return
+//			// System.err.println("if (key.equals(\"" + key + "\")) return
-			// buildInternal(partials);");
+//			// buildInternal(partials);");
-			// }
+//			// }
-			// PRINTED2.add(key);
+//			// PRINTED2.add(key);
-		}
+//		}
-		return result;
+//		return result;
 	}
 
 	private static RegexConcat buildInternal(IRegex... partials) {
@@ -113,20 +119,35 @@ public final class RegexConcat extends RegexComposed implements IRegex {
 		return foxRegex.get() != -1L;
 	}
 
+//	static private final Set<String> PRINTED = new HashSet<>();
+//	static private final Set<String> ZERO = new HashSet<>();
+
 	@Override
 	public boolean match(StringLocated s) {
 		if (limitSize != 0 && s.getString().length() > limitSize)
 			return false;
 
+		// vtot.incrementAndGet();
 		final long foxRegex = foxRegex();
+//		synchronized (PRINTED) {
+//			final String full = getFullSlow();
+//			final boolean added = PRINTED.add(full);
+//			if (added && foxRegex == 0L) {
+//				ZERO.add(full);
+//				System.err.println("PR " + ZERO.size() + "/" + PRINTED.size() + " "
+//						+ FoxSignature.backToString(foxRegex) + " " + full);
+//			}
+//		}
 		if (foxRegex != 0L) {
 			final long foxLine = s.getFoxSignature();
 			final long check = foxRegex & foxLine;
 			// System.err.println("r=" + getFullSlow() + " s=" + s + " line=" + foxLine + "
 			// regex" + foxRegex + " "
 			// + check + " <" + FoxSignature.backToString(check) + ">");
-			if (check != foxRegex)
+			if (check != foxRegex) {
+				// vescaped.incrementAndGet();
 				return false;
+			}
 
 		}
 		return super.match(s);

src/net/sourceforge/plantuml/command/regex/RegexLeaf.java

@@ -41,6 +41,7 @@ import java.util.Iterator;
 import java.util.Map;
 import java.util.Set;
 import java.util.StringTokenizer;
+import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
 import net.sourceforge.plantuml.StringLocated;
@@ -95,9 +96,9 @@ public class RegexLeaf implements IRegex {
 	}
 
 	public int count() {
-		if (count == -1) {
+		if (count == -1)
 			count = MyPattern.cmpile(pattern).matcher("").groupCount();
-		}
+
 		return count;
 	}
 
@@ -107,9 +108,9 @@ public class RegexLeaf implements IRegex {
 			final String group = it.next();
 			m.add(group);
 		}
-		if (name == null) {
+		if (name == null)
 			return Collections.emptyMap();
-		}
+
 		return Collections.singletonMap(name, m);
 	}
 
@@ -121,63 +122,52 @@ public class RegexLeaf implements IRegex {
 		throw new UnsupportedOperationException();
 	}
 
-	static private final Set<String> UNKNOWN = new HashSet<>();
+	// static private final Set<String> UNKNOWN = new HashSet<>();
 
-	static private final Pattern p1 = Pattern.compile("^[-0A-Za-z_!:@;/=,\"]+$");
+	static private final Pattern p1 = Pattern.compile(
-	static private final Pattern p2 = Pattern.compile("^[-0A-Za-z_!:@;/=,\"]+\\?$");
+			"^\\(?((?:[-0A-Za-z_!:@;/=,\" ][?+*]?|\\\\[b$(){}<>|*.+^\\[\\]][?+*]?|\\.\\*|\\.\\+)+)(?:\\)\\+|\\))?$");
-	static private final Pattern p3 = Pattern
-			.compile("^\\(?[-0A-Za-z_!:@;/=\" ]+\\??(\\|[-0A-Za-z_!:@;/=,\" ]+\\??)+\\)?$");
 
-	private static long getSignatureP3(String s) {
+	static private final Pattern p2 = Pattern.compile("^\\([-?a-z ]+(\\|[-?a-z ]+)+\\)$");
+
+	static private final Pattern p3 = Pattern.compile("^\\(?\\[[-=.~]+\\]\\+\\)?$");
+
+	private static long getSignatureP2(String s) {
 		long result = -1L;
 		for (StringTokenizer st = new StringTokenizer(s, "()|"); st.hasMoreTokens();) {
 			final String val = st.nextToken();
-			final long sig = FoxSignature.getFoxSignature(val.endsWith("?") ? val.substring(0, val.length() - 2) : val);
+			result = result & FoxSignature.getFoxSignatureFromRegex(val);
-			result = result & sig;
 		}
 		return result;
 	}
 
-	public long getFoxSignatureNone() {
-		return 0;
-	}
-
 	public long getFoxSignature() {
-		if (p1.matcher(pattern).matches())
+		if (pattern.equals("[%s]+"))
-			return FoxSignature.getFoxSignature(pattern);
+			return FoxSignature.getSpecialSpaces();
-
+		if (pattern.equals("[%s]*"))
-		if (p2.matcher(pattern).matches())
-			return FoxSignature.getFoxSignature(pattern.substring(0, pattern.length() - 2));
-
-		if (p3.matcher(pattern).matches())
-			return getSignatureP3(pattern);
-
-		if (pattern.length() == 2 && pattern.startsWith("\\") && Character.isLetterOrDigit(pattern.charAt(1)) == false)
-			return FoxSignature.getFoxSignature(pattern.substring(1));
-
-		if (pattern.equals("\\<\\>") || pattern.equals("(\\<\\<.*\\>\\>)"))
-			return FoxSignature.getFoxSignature("<>");
-
-		if (pattern.equals("\\<-\\>"))
-			return FoxSignature.getFoxSignature("<->");
-
-		if (pattern.equals("(-+)"))
-			return FoxSignature.getFoxSignature("-");
-
-		if (pattern.equals("\\|+") || pattern.equals("\\|\\|"))
-			return FoxSignature.getFoxSignature("|");
-
-		if (pattern.equals("([*]+)"))
-			return FoxSignature.getFoxSignature("*");
-
-		if (pattern.equals("[%s]+") || pattern.equals("[%s]*"))
 			return 0;
+		final String pattern2 = pattern.replaceAll("\\[%s\\][+*?]?|\\(\\[([^\\\\\\[\\]])+\\]\\)[+*?]?", "");
+
+		final Matcher m1 = p1.matcher(pattern2);
+		if (m1.matches())
+			return FoxSignature.getFoxSignatureFromRegex(m1.group(1));
+
+		final Matcher m2 = p2.matcher(pattern2);
+		if (m2.matches())
+			return getSignatureP2(pattern2);
+
+		final Matcher m3 = p3.matcher(pattern2);
+		if (m3.matches())
+			return FoxSignature.getSpecial1();
 
 //		synchronized (UNKNOWN) {
-//			final boolean changed = UNKNOWN.add(pattern);
+//			final boolean changed = UNKNOWN.add(pattern2);
-//			if (changed)
+//			if (changed) {
-//				System.err.println("unknow=" + pattern);
+//				if (pattern.equals(pattern2))
-//
+//					System.err.println("unknow=" + UNKNOWN.size() + " " + pattern);
+//				else
+//					System.err.println("unknow=" + UNKNOWN.size() + " " + pattern2 + "        " + pattern);
+//				// Thread.dumpStack();
+//			}
 //		}
 		return 0;
 	}

src/net/sourceforge/plantuml/compositediagram/CompositeDiagramFactory.java

@@ -35,7 +35,6 @@
  */
 package net.sourceforge.plantuml.compositediagram;
 
-import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
@@ -58,15 +57,12 @@ public class CompositeDiagramFactory extends PSystemCommandFactory {
 	}
 
 	@Override
-	protected List<Command> createCommands() {
+	protected void initCommandsList(List<Command> cmds) {
-		final List<Command> cmds = new ArrayList<>();
 		cmds.add(new CommandCreateBlock());
 		cmds.add(new CommandLinkBlock());
 		cmds.add(new CommandCreatePackageBlock());
 		cmds.add(new CommandEndPackageBlock());
 		CommonCommands.addCommonCommands1(cmds);
-
-		return cmds;
 	}
 
 	@Override

src/net/sourceforge/plantuml/creole/command/CommandCreoleImg.java

@@ -61,22 +61,22 @@ public class CommandCreoleImg implements Command {
 
 	public int matchingSize(String line) {
 		final Matcher2 m = pattern.matcher(line);
-		if (m.find() == false) {
+		if (m.find() == false)
 			return 0;
-		}
+
 		return m.group(1).length();
 	}
 
 	public String executeAndGetRemaining(String line, StripeSimple stripe) {
 		final Matcher2 m = pattern.matcher(line);
-		if (m.find() == false) {
+		if (m.find() == false)
 			throw new IllegalStateException();
-		}
+
 		String src = m.group(2);
 		final double scale = Parser.getScale(m.group(3), 1);
-		if (src.toLowerCase().startsWith("src=")) {
+		if (src.toLowerCase().startsWith("src="))
 			src = src.substring(4);
-		}
+
 		src = StringUtils.eventuallyRemoveStartingAndEndingDoubleQuote(src, "\"");
 		stripe.addImage(src, scale);
 		return line.substring(m.group(1).length());

src/net/sourceforge/plantuml/cucadiagram/Display.java

@@ -57,7 +57,6 @@ import net.sourceforge.plantuml.command.regex.Matcher2;
 import net.sourceforge.plantuml.command.regex.MyPattern;
 import net.sourceforge.plantuml.command.regex.Pattern2;
 import net.sourceforge.plantuml.creole.CreoleMode;
-import net.sourceforge.plantuml.creole.Parser;
 import net.sourceforge.plantuml.creole.Sheet;
 import net.sourceforge.plantuml.creole.SheetBlock1;
 import net.sourceforge.plantuml.creole.SheetBlock2;

src/net/sourceforge/plantuml/cucadiagram/Link.java

@@ -518,16 +518,6 @@ public class Link extends WithLinkType implements Hideable, Removeable {
 
 	}
 
-	private UmlDiagramType umlType;
-
-	public void setUmlDiagramType(UmlDiagramType type) {
-		this.umlType = type;
-	}
-
-	public UmlDiagramType getUmlDiagramType() {
-		return umlType;
-	}
-
 	private LinkConstraint linkConstraint;
 
 	public void setLinkConstraint(LinkConstraint linkConstraint) {

src/net/sourceforge/plantuml/cucadiagram/MethodsOrFieldsArea.java

@@ -44,7 +44,6 @@ import java.util.List;
 
 import net.sourceforge.plantuml.EmbeddedDiagram;
 import net.sourceforge.plantuml.ISkinParam;
-import net.sourceforge.plantuml.ISkinSimple;
 import net.sourceforge.plantuml.StringUtils;
 import net.sourceforge.plantuml.Url;
 import net.sourceforge.plantuml.awt.geom.XDimension2D;

src/net/sourceforge/plantuml/descdiagram/DescriptionDiagramFactory.java

@@ -35,7 +35,6 @@
  */
 package net.sourceforge.plantuml.descdiagram;
 
-import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
@@ -74,9 +73,7 @@ public class DescriptionDiagramFactory extends PSystemCommandFactory {
 	}
 
 	@Override
-	protected List<Command> createCommands() {
+	protected void initCommandsList(List<Command> cmds) {
-		final List<Command> cmds = new ArrayList<>();
-
 		cmds.add(new CommandFootboxIgnored());
 		cmds.add(new CommandNamespaceSeparator());
 		cmds.add(new CommandRankDir());
@@ -126,8 +123,6 @@ public class DescriptionDiagramFactory extends PSystemCommandFactory {
 		cmds.add(new CommandArchimate());
 		cmds.add(new CommandArchimateMultilines());
 		cmds.add(new CommandCreateDomain());
-
-		return cmds;
 	}
 
 }

src/net/sourceforge/plantuml/ebnf/ETileAlternation.java

@@ -42,7 +42,6 @@ import net.sourceforge.plantuml.awt.geom.XDimension2D;
 import net.sourceforge.plantuml.graphic.StringBounder;
 import net.sourceforge.plantuml.ugraphic.UGraphic;
 import net.sourceforge.plantuml.ugraphic.UTranslate;
-import net.sourceforge.plantuml.ugraphic.color.HColor;
 
 public class ETileAlternation extends ETile {
 

src/net/sourceforge/plantuml/ebnf/PSystemEbnfFactory.java

@@ -35,7 +35,6 @@
  */
 package net.sourceforge.plantuml.ebnf;
 
-import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
@@ -52,9 +51,7 @@ public class PSystemEbnfFactory extends PSystemCommandFactory {
 	}
 
 	@Override
-	protected List<Command> createCommands() {
+	protected void initCommandsList(List<Command> cmds) {
-
-		final List<Command> cmds = new ArrayList<>();
 		CommonCommands.addCommonCommands1(cmds);
 		cmds.add(new CommandComment());
 		cmds.add(new CommandCommentMultilines2());
@@ -62,8 +59,6 @@ public class PSystemEbnfFactory extends PSystemCommandFactory {
 		cmds.add(new CommandEBnfSingleLine());
 		cmds.add(new CommandEbnfMultilines());
 		// cmds.add(new CommandNoteMultilines());
-
-		return cmds;
 	}
 
 	@Override

src/net/sourceforge/plantuml/flowdiagram/FlowDiagramFactory.java

@@ -35,7 +35,6 @@
  */
 package net.sourceforge.plantuml.flowdiagram;
 
-import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
@@ -56,11 +55,9 @@ public class FlowDiagramFactory extends PSystemCommandFactory {
 	}
 
 	@Override
-	protected List<Command> createCommands() {
+	protected void initCommandsList(List<Command> cmds) {
-		final List<Command> cmds = new ArrayList<>();
 		cmds.add(new CommandLineSimple());
 		cmds.add(new CommandLink());
-		return cmds;
 	}
 
 }

src/net/sourceforge/plantuml/help/HelpFactory.java

@@ -35,7 +35,6 @@
  */
 package net.sourceforge.plantuml.help;
 
-import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
@@ -51,10 +50,7 @@ public class HelpFactory extends PSystemCommandFactory {
 	}
 
 	@Override
-	protected List<Command> createCommands() {
+	protected void initCommandsList(List<Command> cmds) {
-
-		final List<Command> cmds = new ArrayList<>();
-
 		cmds.add(new CommandHelp());
 		cmds.add(new CommandHelpColor());
 		cmds.add(new CommandHelpFont());
@@ -62,8 +58,6 @@ public class HelpFactory extends PSystemCommandFactory {
 		cmds.add(new CommandHelpSkinparam());
 		cmds.add(new CommandHelpType());
 		cmds.add(new CommandHelpTheme());
-
-		return cmds;
 	}
 
 }

src/net/sourceforge/plantuml/math/LatexBuilder.java

@@ -99,6 +99,7 @@ public class LatexBuilder implements ScientificEquation {
 			this.icon = icon;
 		}
 
+		@Override
 		public BufferedImage getImage() {
 			if (cache == null) {
 				cache = new BufferedImage((int) (icon.getIconWidth() * scale), (int) (icon.getIconHeight() * scale),
@@ -133,6 +134,11 @@ public class LatexBuilder implements ScientificEquation {
 			return this;
 		}
 
+		@Override
+		public double getScale() {
+			return scale;
+		}
+
 	}
 
 	public String getSource() {

src/net/sourceforge/plantuml/mindmap/CommandMindMapOrgmode.java

@@ -55,7 +55,7 @@ public class CommandMindMapOrgmode extends SingleLineCommand2<MindMapDiagram> {
 
 	static IRegex getRegexConcat() {
 		return RegexConcat.build(CommandMindMapOrgmode.class.getName(), RegexLeaf.start(), //
-				new RegexLeaf("TYPE", "([ \t]*[*]+)"), //
+				new RegexLeaf("TYPE", "([ \t]*\\*+)"), //
 				new RegexOptional(new RegexLeaf("BACKCOLOR", "\\[(#\\w+)\\]")), //
 				new RegexLeaf("SHAPE", "(_)?"), //
 				RegexLeaf.spaceOneOrMore(), //

src/net/sourceforge/plantuml/mindmap/CommandMindMapOrgmodeMultiline.java

@@ -60,7 +60,7 @@ public class CommandMindMapOrgmodeMultiline extends CommandMultilines2<MindMapDi
 
 	static IRegex getRegexConcat() {
 		return RegexConcat.build(CommandMindMapOrgmodeMultiline.class.getName(), RegexLeaf.start(), //
-				new RegexLeaf("TYPE", "([*]+)"), //
+				new RegexLeaf("TYPE", "(\\*+)"), //
 				new RegexOptional(new RegexLeaf("BACKCOLOR", "\\[(#\\w+)\\]")), //
 				new RegexLeaf("SHAPE", "(_)?"), //
 				new RegexLeaf(":"), //

src/net/sourceforge/plantuml/mindmap/MindMapDiagramFactory.java

@@ -35,7 +35,6 @@
  */
 package net.sourceforge.plantuml.mindmap;
 
-import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
@@ -53,9 +52,7 @@ public class MindMapDiagramFactory extends PSystemCommandFactory {
 	}
 
 	@Override
-	protected List<Command> createCommands() {
+	protected void initCommandsList(List<Command> cmds) {
-
-		final List<Command> cmds = new ArrayList<>();
 		CommonCommands.addCommonCommands1(cmds);
 		// cmds.add(new CommandMindMapTabulation());
 		cmds.add(new CommandRankDir());
@@ -64,8 +61,6 @@ public class MindMapDiagramFactory extends PSystemCommandFactory {
 		cmds.add(new CommandMindMapRoot());
 		cmds.add(new CommandMindMapPlus());
 		cmds.add(new CommandMindMapDirection());
-
-		return cmds;
 	}
 
 	@Override

src/net/sourceforge/plantuml/nwdiag/NwDiagramFactory.java

@@ -35,7 +35,6 @@
  */
 package net.sourceforge.plantuml.nwdiag;
 
-import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
@@ -58,9 +57,7 @@ public class NwDiagramFactory extends PSystemCommandFactory {
 	}
 
 	@Override
-	protected List<Command> createCommands() {
+	protected void initCommandsList(List<Command> cmds) {
-
-		final List<Command> cmds = new ArrayList<>();
 		CommonCommands.addCommonCommands1(cmds);
 		cmds.add(new CommandNwDiagInit());
 		cmds.add(new CommandComment());
@@ -71,7 +68,6 @@ public class NwDiagramFactory extends PSystemCommandFactory {
 		cmds.add(new CommandProperty());
 		cmds.add(new CommandEndSomething());
 		cmds.add(new CommandFootboxIgnored());
-		return cmds;
 	}
 
 }

src/net/sourceforge/plantuml/project/GanttDiagramFactory.java

@@ -35,9 +35,7 @@
  */
 package net.sourceforge.plantuml.project;
 
-import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.Collection;
 import java.util.List;
 import java.util.Map;
 
@@ -81,27 +79,25 @@ import net.sourceforge.plantuml.style.CommandStyleMultilinesCSS;
 public class GanttDiagramFactory extends PSystemCommandFactory {
 
 	static private final List<Subject> subjects() {
-		return Arrays.<Subject>asList(new SubjectTask(), new SubjectProject(), new SubjectDayOfWeek(),
+		return Arrays.<Subject>asList(SubjectTask.ME, SubjectProject.ME, SubjectDayOfWeek.ME, SubjectDayAsDate.ME,
-				new SubjectDayAsDate(), new SubjectDaysAsDates(), new SubjectResource(), new SubjectToday(),
+				SubjectDaysAsDates.ME, SubjectResource.ME, SubjectToday.ME, SubjectSeparator.ME);
-				new SubjectSeparator());
 	}
 
-	public GanttDiagramFactory(DiagramType type) {
+	public GanttDiagramFactory() {
-		super(type);
+		super(DiagramType.GANTT);
 	}
 
 	@Override
-	protected List<Command> createCommands() {
+	protected void initCommandsList(List<Command> cmds) {
-		final List<Command> cmds = new ArrayList<>();
 		CommonCommands.addTitleCommands(cmds);
 		CommonCommands.addCommonCommands2(cmds);
 
-		cmds.add(new CommandStyleMultilinesCSS());
+		cmds.add(CommandStyleMultilinesCSS.ME);
-		cmds.add(new CommandStyleImport());
+		cmds.add(CommandStyleImport.ME);
 
-		cmds.add(new CommandNope());
+		cmds.add(CommandNope.ME);
 
-		cmds.addAll(getLanguageCommands());
+		addLanguageCommands(cmds);
 
 		cmds.add(new CommandGanttArrow());
 		cmds.add(new CommandGanttArrow2());
@@ -119,48 +115,32 @@ public class GanttDiagramFactory extends PSystemCommandFactory {
 		cmds.add(new CommandLabelOnColumn());
 		cmds.add(new CommandHideResourceName());
 		cmds.add(new CommandHideResourceFootbox());
-
-		return cmds;
 	}
 
-	static private final Collection<Command> cache = new ArrayList<>();
+	private void addLanguageCommands(List<Command> cmd) {
+		for (Subject subject : subjects())
+			for (SentenceSimple sentenceA : subject.getSentences()) {
+				cmd.add(NaturalCommand.create(sentenceA));
+				for (SentenceSimple sentenceB : subject.getSentences()) {
+					final String signatureA = sentenceA.getSignature();
+					final String signatureB = sentenceB.getSignature();
+					if (signatureA.equals(signatureB) == false)
+						cmd.add(NaturalCommand.create(new SentenceAnd(sentenceA, sentenceB)));
 
-	public static void clearCache() {
+				}
-		cache.clear();
-	}
-
-	private static Collection<Command> getLanguageCommands() {
-		// Useless synchronized now
-		synchronized (cache) {
-			if (cache.size() == 0) {
-
-				for (Subject subject : subjects())
-					for (SentenceSimple sentenceA : subject.getSentences()) {
-						cache.add(NaturalCommand.create(sentenceA));
-						for (SentenceSimple sentenceB : subject.getSentences()) {
-							final String signatureA = sentenceA.getSignature();
-							final String signatureB = sentenceB.getSignature();
-							if (signatureA.equals(signatureB) == false)
-								cache.add(NaturalCommand.create(new SentenceAnd(sentenceA, sentenceB)));
-
-						}
-					}
-
-				for (Subject subject : subjects())
-					for (SentenceSimple sentenceA : subject.getSentences())
-						for (SentenceSimple sentenceB : subject.getSentences())
-							for (SentenceSimple sentenceC : subject.getSentences()) {
-								final String signatureA = sentenceA.getSignature();
-								final String signatureB = sentenceB.getSignature();
-								final String signatureC = sentenceC.getSignature();
-								if (signatureA.equals(signatureB) == false && signatureA.equals(signatureC) == false
-										&& signatureC.equals(signatureB) == false)
-									cache.add(
-											NaturalCommand.create(new SentenceAndAnd(sentenceA, sentenceB, sentenceC)));
-							}
 			}
-		}
+
-		return cache;
+		for (Subject subject : subjects())
+			for (SentenceSimple sentenceA : subject.getSentences())
+				for (SentenceSimple sentenceB : subject.getSentences())
+					for (SentenceSimple sentenceC : subject.getSentences()) {
+						final String signatureA = sentenceA.getSignature();
+						final String signatureB = sentenceB.getSignature();
+						final String signatureC = sentenceC.getSignature();
+						if (signatureA.equals(signatureB) == false && signatureA.equals(signatureC) == false
+								&& signatureC.equals(signatureB) == false)
+							cmd.add(NaturalCommand.create(new SentenceAndAnd(sentenceA, sentenceB, sentenceC)));
+					}
 	}
 
 	@Override

src/net/sourceforge/plantuml/project/lang/SentenceDisplayOnSameRowAs.java

@@ -42,7 +42,7 @@ import net.sourceforge.plantuml.project.core.Task;
 public class SentenceDisplayOnSameRowAs extends SentenceSimple {
 
 	public SentenceDisplayOnSameRowAs() {
-		super(new SubjectTask(), Verbs.displayOnSameRowAs(), new ComplementNamed());
+		super(SubjectTask.ME, Verbs.displayOnSameRowAs, new ComplementNamed());
 	}
 
 	@Override

src/net/sourceforge/plantuml/project/lang/SentenceEnds.java

@@ -45,7 +45,7 @@ import net.sourceforge.plantuml.project.core.TaskInstant;
 public class SentenceEnds extends SentenceSimple {
 
 	public SentenceEnds() {
-		super(new SubjectTask(), Verbs.ends(), new ComplementBeforeOrAfterOrAtTaskStartOrEnd());
+		super(SubjectTask.ME, Verbs.ends, new ComplementBeforeOrAfterOrAtTaskStartOrEnd());
 	}
 
 	@Override

src/net/sourceforge/plantuml/project/lang/SentenceHappens.java

@@ -44,7 +44,7 @@ import net.sourceforge.plantuml.project.core.TaskInstant;
 public class SentenceHappens extends SentenceSimple {
 
 	public SentenceHappens() {
-		super(new SubjectTask(), Verbs.happens(), new ComplementBeforeOrAfterOrAtTaskStartOrEnd());
+		super(SubjectTask.ME, Verbs.happens, new ComplementBeforeOrAfterOrAtTaskStartOrEnd());
 	}
 
 	@Override

src/net/sourceforge/plantuml/project/lang/SentenceHappensDate.java

@@ -44,7 +44,7 @@ import net.sourceforge.plantuml.project.time.Day;
 public class SentenceHappensDate extends SentenceSimple {
 
 	public SentenceHappensDate() {
-		super(new SubjectTask(), Verbs.happens(), new ComplementDate());
+		super(SubjectTask.ME, Verbs.happens, new ComplementDate());
 	}
 
 	@Override

src/net/sourceforge/plantuml/project/lang/SentenceIsColored.java

@@ -42,7 +42,7 @@ import net.sourceforge.plantuml.project.core.Task;
 public class SentenceIsColored extends SentenceSimple {
 
 	public SentenceIsColored() {
-		super(new SubjectTask(), Verbs.isColored(), new ComplementInColors());
+		super(SubjectTask.ME, Verbs.isColored, new ComplementInColors());
 	}
 
 	@Override

src/net/sourceforge/plantuml/project/lang/SentenceIsColoredForCompletion.java

@@ -42,7 +42,7 @@ import net.sourceforge.plantuml.project.core.Task;
 public class SentenceIsColoredForCompletion extends SentenceSimple {
 
 	public SentenceIsColoredForCompletion() {
-		super(new SubjectTask(), Verbs.isColoredForCompletion(), new ComplementInColorsFromTo());
+		super(SubjectTask.ME, Verbs.isColoredForCompletion, new ComplementInColorsFromTo());
 	}
 
 	@Override

src/net/sourceforge/plantuml/project/lang/SentenceIsDeleted.java

@@ -42,7 +42,7 @@ import net.sourceforge.plantuml.project.core.Task;
 public class SentenceIsDeleted extends SentenceSimple {
 
 	public SentenceIsDeleted() {
-		super(new SubjectTask(), Verbs.isDeleted(), new ComplementEmpty());
+		super(SubjectTask.ME, Verbs.isDeleted, new ComplementEmpty());
 	}
 
 	@Override

src/net/sourceforge/plantuml/project/lang/SentenceIsForTask.java

@@ -43,7 +43,7 @@ import net.sourceforge.plantuml.project.core.Task;
 public class SentenceIsForTask extends SentenceSimple {
 
 	public SentenceIsForTask() {
-		super(new SubjectTask(), Verbs.is(), new ComplementCompleted());
+		super(SubjectTask.ME, Verbs.is, new ComplementCompleted());
 	}
 
 	@Override

src/net/sourceforge/plantuml/project/lang/SentenceLasts.java

@@ -43,7 +43,7 @@ import net.sourceforge.plantuml.project.core.Task;
 public class SentenceLasts extends SentenceSimple {
 
 	public SentenceLasts() {
-		super(new SubjectTask(), Verbs.lasts(), new ComplementSeveralDays());
+		super(SubjectTask.ME, Verbs.lasts, new ComplementSeveralDays());
 	}
 
 	@Override

src/net/sourceforge/plantuml/project/lang/SentenceLinksTo.java

@@ -43,7 +43,7 @@ import net.sourceforge.plantuml.project.core.Task;
 public class SentenceLinksTo extends SentenceSimple {
 
 	public SentenceLinksTo() {
-		super(new SubjectTask(), Verbs.linksTo(), new ComplementUrl());
+		super(SubjectTask.ME, Verbs.linksTo, new ComplementUrl());
 	}
 
 	@Override

src/net/sourceforge/plantuml/project/lang/SentenceOccurs.java

@@ -45,7 +45,7 @@ import net.sourceforge.plantuml.project.core.TaskInstant;
 public class SentenceOccurs extends SentenceSimple {
 
 	public SentenceOccurs() {
-		super(new SubjectTask(), Verbs.occurs(), new ComplementFromTo());
+		super(SubjectTask.ME, Verbs.occurs, new ComplementFromTo());
 	}
 
 	@Override

src/net/sourceforge/plantuml/project/lang/SentencePausesDate.java

@@ -43,7 +43,7 @@ import net.sourceforge.plantuml.project.time.Day;
 public class SentencePausesDate extends SentenceSimple {
 
 	public SentencePausesDate() {
-		super(new SubjectTask(), Verbs.pauses(), new ComplementDate());
+		super(SubjectTask.ME, Verbs.pauses, new ComplementDate());
 	}
 
 	@Override

src/net/sourceforge/plantuml/project/lang/SentencePausesDates.java

@@ -44,7 +44,7 @@ import net.sourceforge.plantuml.project.time.Day;
 public class SentencePausesDates extends SentenceSimple {
 
 	public SentencePausesDates() {
-		super(new SubjectTask(), Verbs.pauses(), new ComplementDates());
+		super(SubjectTask.ME, Verbs.pauses, new ComplementDates());
 	}
 
 	@Override

src/net/sourceforge/plantuml/project/lang/SentencePausesDayOfWeek.java

@@ -43,7 +43,7 @@ import net.sourceforge.plantuml.project.time.DayOfWeek;
 public class SentencePausesDayOfWeek extends SentenceSimple {
 
 	public SentencePausesDayOfWeek() {
-		super(new SubjectTask(), Verbs.pauses(), new ComplementDayOfWeek());
+		super(SubjectTask.ME, Verbs.pauses, new ComplementDayOfWeek());
 	}
 
 	@Override

src/net/sourceforge/plantuml/project/lang/SentenceTaskEndsAbsolute.java

@@ -43,7 +43,7 @@ import net.sourceforge.plantuml.project.time.Day;
 public class SentenceTaskEndsAbsolute extends SentenceSimple {
 
 	public SentenceTaskEndsAbsolute() {
-		super(new SubjectTask(), Verbs.ends2(), new ComplementDate());
+		super(SubjectTask.ME, Verbs.ends2, new ComplementDate());
 	}
 
 	@Override

src/net/sourceforge/plantuml/project/lang/SentenceTaskStarts.java

@@ -46,7 +46,7 @@ import net.sourceforge.plantuml.ugraphic.color.HColor;
 public class SentenceTaskStarts extends SentenceSimple {
 
 	public SentenceTaskStarts() {
-		super(new SubjectTask(), Verbs.starts2(), new ComplementBeforeOrAfterOrAtTaskStartOrEnd());
+		super(SubjectTask.ME, Verbs.starts2, new ComplementBeforeOrAfterOrAtTaskStartOrEnd());
 	}
 
 	@Override

src/net/sourceforge/plantuml/project/lang/SentenceTaskStartsAbsolute.java

@@ -43,7 +43,7 @@ import net.sourceforge.plantuml.project.time.Day;
 public class SentenceTaskStartsAbsolute extends SentenceSimple {
 
 	public SentenceTaskStartsAbsolute() {
-		super(new SubjectTask(), Verbs.starts3(), new ComplementDate());
+		super(SubjectTask.ME, Verbs.starts3, new ComplementDate());
 	}
 
 	@Override

src/net/sourceforge/plantuml/project/lang/SentenceTaskStartsWithColor.java

@@ -46,7 +46,7 @@ import net.sourceforge.plantuml.ugraphic.color.HColor;
 public class SentenceTaskStartsWithColor extends SentenceSimple {
 
 	public SentenceTaskStartsWithColor() {
-		super(new SubjectTask(), Verbs.starts2(),
+		super(SubjectTask.ME, Verbs.starts2,
 				new PairOfSomething(new ComplementBeforeOrAfterOrAtTaskStartOrEnd(), new ComplementWithColorLink()));
 	}
 

src/net/sourceforge/plantuml/project/lang/SubjectDayAsDate.java

@@ -51,13 +51,18 @@ import net.sourceforge.plantuml.ugraphic.color.HColor;
 
 public class SubjectDayAsDate implements Subject {
 
+	public static final Subject ME = new SubjectDayAsDate();
+
+	private SubjectDayAsDate() {
+	}
+
 	public Failable<Day> getMe(GanttDiagram project, RegexResult arg) {
-		if (arg.get("BDAY", 0) != null) {
+		if (arg.get("BDAY", 0) != null)
 			return Failable.ok(resultB(arg));
-		}
+
-		if (arg.get("ECOUNT", 0) != null) {
+		if (arg.get("ECOUNT", 0) != null)
 			return Failable.ok(resultE(project, arg));
-		}
+
 		throw new IllegalStateException();
 
 	}
@@ -81,7 +86,7 @@ public class SubjectDayAsDate implements Subject {
 	class Close extends SentenceSimple {
 
 		public Close() {
-			super(SubjectDayAsDate.this, Verbs.isOrAre(), new ComplementClose());
+			super(SubjectDayAsDate.this, Verbs.isOrAre, new ComplementClose());
 		}
 
 		@Override
@@ -93,7 +98,7 @@ public class SubjectDayAsDate implements Subject {
 
 	class Open extends SentenceSimple {
 		public Open() {
-			super(SubjectDayAsDate.this, Verbs.isOrAre(), new ComplementOpen());
+			super(SubjectDayAsDate.this, Verbs.isOrAre, new ComplementOpen());
 		}
 
 		@Override
@@ -106,7 +111,7 @@ public class SubjectDayAsDate implements Subject {
 	class InColor extends SentenceSimple {
 
 		public InColor() {
-			super(SubjectDayAsDate.this, Verbs.isOrAre(), new ComplementInColors2());
+			super(SubjectDayAsDate.this, Verbs.isOrAre, new ComplementInColors2());
 		}
 
 		@Override

src/net/sourceforge/plantuml/project/lang/SubjectDayOfWeek.java

@@ -49,6 +49,11 @@ import net.sourceforge.plantuml.ugraphic.color.HColor;
 
 public class SubjectDayOfWeek implements Subject {
 
+	public static final Subject ME = new SubjectDayOfWeek();
+
+	private SubjectDayOfWeek() {
+	}
+
 	public IRegex toRegex() {
 		return new RegexLeaf("SUBJECT", "(" + DayOfWeek.getRegexString() + ")");
 	}
@@ -64,7 +69,7 @@ public class SubjectDayOfWeek implements Subject {
 
 	class AreOpen extends SentenceSimple {
 		public AreOpen() {
-			super(SubjectDayOfWeek.this, Verbs.are(), new ComplementOpen());
+			super(SubjectDayOfWeek.this, Verbs.are, new ComplementOpen());
 		}
 
 		@Override
@@ -78,7 +83,7 @@ public class SubjectDayOfWeek implements Subject {
 	class AreClose extends SentenceSimple {
 
 		public AreClose() {
-			super(SubjectDayOfWeek.this, Verbs.are(), new ComplementClose());
+			super(SubjectDayOfWeek.this, Verbs.are, new ComplementClose());
 		}
 
 		@Override
@@ -93,7 +98,7 @@ public class SubjectDayOfWeek implements Subject {
 	class InColor extends SentenceSimple {
 
 		public InColor() {
-			super(SubjectDayOfWeek.this, Verbs.isOrAre(), new ComplementInColors2());
+			super(SubjectDayOfWeek.this, Verbs.isOrAre, new ComplementInColors2());
 		}
 
 		@Override

src/net/sourceforge/plantuml/project/lang/SubjectDaysAsDates.java

@@ -52,6 +52,11 @@ import net.sourceforge.plantuml.ugraphic.color.HColor;
 
 public class SubjectDaysAsDates implements Subject {
 
+	public static final Subject ME = new SubjectDaysAsDates();
+
+	private SubjectDaysAsDates() {
+	}
+
 	public IRegex toRegex() {
 		return new RegexOr(toRegexB(), toRegexE(), andRegex(), thenRegex());
 	}
@@ -153,7 +158,7 @@ public class SubjectDaysAsDates implements Subject {
 	class Close extends SentenceSimple {
 
 		public Close() {
-			super(SubjectDaysAsDates.this, Verbs.isOrAre(), new ComplementClose());
+			super(SubjectDaysAsDates.this, Verbs.isOrAre, new ComplementClose());
 		}
 
 		@Override
@@ -169,7 +174,7 @@ public class SubjectDaysAsDates implements Subject {
 	class Open extends SentenceSimple {
 
 		public Open() {
-			super(SubjectDaysAsDates.this, Verbs.isOrAre(), new ComplementOpen());
+			super(SubjectDaysAsDates.this, Verbs.isOrAre, new ComplementOpen());
 		}
 
 		@Override
@@ -186,7 +191,7 @@ public class SubjectDaysAsDates implements Subject {
 	class InColor extends SentenceSimple {
 
 		public InColor() {
-			super(SubjectDaysAsDates.this, Verbs.isOrAre(), new ComplementInColors2());
+			super(SubjectDaysAsDates.this, Verbs.isOrAre, new ComplementInColors2());
 		}
 
 		@Override
@@ -204,7 +209,7 @@ public class SubjectDaysAsDates implements Subject {
 	class Named extends SentenceSimple {
 
 		public Named() {
-			super(SubjectDaysAsDates.this, Verbs.isOrAreNamed(), new ComplementNamed());
+			super(SubjectDaysAsDates.this, Verbs.isOrAreNamed, new ComplementNamed());
 		}
 
 		@Override