1 files changed, 51 insertions, 0 deletions
diff --git a/src/syntaxParser/NumericScalarExpr.java b/src/syntaxParser/NumericScalarExpr.java
new file mode 100644
index 0000000..049c3b9
--- /dev/null
+++ b/src/syntaxParser/NumericScalarExpr.java
@@ -0,0 +1,51 @@
+package syntaxParser;
+/**
+ * NumericScalarExpr
+ * Creation date: (3/3/2003 2:28:43 AM)
+ * @author: mattia parigiani, Sorin Stancu-Mara
+ */
+class NumericScalarExpr implements IParseTreeNode {
+	NumericScalarExpr leftNumericScalarExpr, rightNumericScalarExpr;
+	String function;
+	String constValue;
+
+	public NumericScalarExpr(String scalar){
+		constValue = scalar;
+		function = "scalar";
+	}
+	
+	
+	public NumericScalarExpr(String op, NumericScalarExpr expr) throws Exception{
+		leftNumericScalarExpr = expr;
+		if (op.equals("+")) function = "scalarUnaryPlus";
+		else if (op.equals("-")) function = "scalarUnaryMinus";
+		else if (op.equals("abs")) function = "scalarAbs";
+		else throw new Exception("Operator " + op + " is not recognized!");
+	}
+
+	public NumericScalarExpr(String op, NumericScalarExpr lbe, NumericScalarExpr rbe) throws Exception {
+		leftNumericScalarExpr = lbe ;
+		rightNumericScalarExpr = rbe ;
+		if (op.equals("+")) function = "scalarPlus";
+		else if (op.equals("-")) function = "scalarMinus";
+		else if (op.equals("*")) function = "scalarMult";
+		else if (op.equals("/")) function = "scalarDiv";
+		else throw new Exception("Operator " + op + " is not recognized!");
+	}	
+	
+	public String toXML() {
+		String result;
+		result = "<" + function + ">";
+		if (function.equals("scalar")) {
+			result += constValue;
+		} else {
+			result += leftNumericScalarExpr.toXML();
+			if (rightNumericScalarExpr != null) {
+				result += rightNumericScalarExpr.toXML();
+			}
+		}
+		result += "</" + function + ">";
+		return result;
+	}
+	
+}