1 files changed, 218 insertions, 0 deletions
diff --git a/src/net/sourceforge/plantuml/tim/expression/TValue.java b/src/net/sourceforge/plantuml/tim/expression/TValue.java
new file mode 100644
index 0000000..921f8d6
--- /dev/null
+++ b/src/net/sourceforge/plantuml/tim/expression/TValue.java
@@ -0,0 +1,218 @@
+/* ========================================================================
+ * PlantUML : a free UML diagram generator
+ * ========================================================================
+ *
+ * (C) Copyright 2009-2020, 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.tim.expression;
+
+import net.sourceforge.plantuml.json.JsonValue;
+
+public class TValue {
+
+	private final int intValue;
+	private final String stringValue;
+	private final JsonValue jsonValue;
+
+	private TValue(int value) {
+		this.intValue = value;
+		this.stringValue = null;
+		this.jsonValue = null;
+	}
+
+	private TValue(String stringValue) {
+		if (stringValue == null) {
+			throw new IllegalArgumentException();
+		}
+		this.intValue = 0;
+		this.jsonValue = null;
+		this.stringValue = stringValue;
+	}
+
+	public TValue(JsonValue json) {
+		this.jsonValue = json;
+		this.intValue = 0;
+		this.stringValue = null;
+	}
+
+	public static TValue fromInt(int v) {
+		return new TValue(v);
+	}
+
+	public static TValue fromBoolean(boolean b) {
+		return new TValue(b ? 1 : 0);
+	}
+
+	public static TValue fromJson(JsonValue json) {
+		return new TValue(json);
+	}
+
+	@Override
+	public String toString() {
+		if (jsonValue != null) {
+			return jsonValue.toString();
+		}
+		if (stringValue == null) {
+			return "" + intValue;
+		}
+		return stringValue;
+	}
+
+	public static TValue fromString(Token token) {
+		if (token.getTokenType() != TokenType.QUOTED_STRING) {
+			throw new IllegalArgumentException();
+		}
+		return new TValue(token.getSurface());
+	}
+
+	public static TValue fromString(String s) {
+		return new TValue(s);
+	}
+
+	public static TValue fromNumber(Token token) {
+		if (token.getTokenType() != TokenType.NUMBER) {
+			throw new IllegalArgumentException();
+		}
+		return new TValue(Integer.parseInt(token.getSurface()));
+	}
+
+	public TValue add(TValue v2) {
+		if (this.isNumber() && v2.isNumber()) {
+			return new TValue(this.intValue + v2.intValue);
+		}
+		return new TValue(toString() + v2.toString());
+	}
+
+	public TValue minus(TValue v2) {
+		if (this.isNumber() && v2.isNumber()) {
+			return new TValue(this.intValue - v2.intValue);
+		}
+		return new TValue(toString() + v2.toString());
+	}
+
+	public TValue multiply(TValue v2) {
+		if (this.isNumber() && v2.isNumber()) {
+			return new TValue(this.intValue * v2.intValue);
+		}
+		return new TValue(toString() + v2.toString());
+	}
+
+	public TValue dividedBy(TValue v2) {
+		if (this.isNumber() && v2.isNumber()) {
+			return new TValue(this.intValue / v2.intValue);
+		}
+		return new TValue(toString() + v2.toString());
+	}
+
+	public boolean isNumber() {
+		return this.jsonValue == null && this.stringValue == null;
+	}
+
+	public boolean isJson() {
+		return this.jsonValue != null;
+	}
+
+	public Token toToken() {
+		if (isNumber()) {
+			return new Token(toString(), TokenType.NUMBER, null);
+		}
+		if (isJson()) {
+			return new Token(toString(), TokenType.JSON_DATA, jsonValue);
+		}
+		return new Token(toString(), TokenType.QUOTED_STRING, null);
+	}
+
+	public TValue greaterThanOrEquals(TValue v2) {
+		if (this.isNumber() && v2.isNumber()) {
+			return fromBoolean(this.intValue >= v2.intValue);
+		}
+		return fromBoolean(toString().compareTo(v2.toString()) >= 0);
+	}
+
+	public TValue greaterThan(TValue v2) {
+		if (this.isNumber() && v2.isNumber()) {
+			return fromBoolean(this.intValue > v2.intValue);
+		}
+		return fromBoolean(toString().compareTo(v2.toString()) > 0);
+	}
+
+	public TValue lessThanOrEquals(TValue v2) {
+		if (this.isNumber() && v2.isNumber()) {
+			return fromBoolean(this.intValue <= v2.intValue);
+		}
+		return fromBoolean(toString().compareTo(v2.toString()) <= 0);
+	}
+
+	public TValue lessThan(TValue v2) {
+		if (this.isNumber() && v2.isNumber()) {
+			return fromBoolean(this.intValue < v2.intValue);
+		}
+		return fromBoolean(toString().compareTo(v2.toString()) < 0);
+	}
+
+	public TValue equalsOperation(TValue v2) {
+		if (this.isNumber() && v2.isNumber()) {
+			return fromBoolean(this.intValue == v2.intValue);
+		}
+		return fromBoolean(toString().compareTo(v2.toString()) == 0);
+	}
+
+	public TValue notEquals(TValue v2) {
+		if (this.isNumber() && v2.isNumber()) {
+			return fromBoolean(this.intValue != v2.intValue);
+		}
+		return fromBoolean(toString().compareTo(v2.toString()) != 0);
+	}
+
+	public boolean toBoolean() {
+		if (this.isNumber()) {
+			return this.intValue != 0;
+		}
+		return toString().length() > 0;
+	}
+
+	public int toInt() {
+		return this.intValue;
+	}
+
+	public TValue logicalAnd(TValue v2) {
+		return fromBoolean(this.toBoolean() && v2.toBoolean());
+	}
+
+	public TValue logicalOr(TValue v2) {
+		return fromBoolean(this.toBoolean() || v2.toBoolean());
+	}
+
+	public JsonValue toJson() {
+		return jsonValue;
+	}
+
+}