+-NaN and +-Infinity are now correctly represented in Trick View. (#437)

* Values that return "-nan" will now properly show <NaN> in the Trick View variable table.

* +-NaN and +-Infinity are now correctly represented in Trick View.

This solution now handles +- infinity and +-nan instead of just -nan.

* Lifted fix logic into a protected function in the super class.

Removed author/date information.
Put duplicate code from VSFLoat and VSDouble into VSValue.
Added support for -NaN.

trick_source/java/src/trick/common/utils/vs/VSDouble.java

@@ -12,7 +12,7 @@ public class VSDouble extends VSValue<Double> {
 
     @Override
     public void fromVariableServer(String string) {
-        setValue(Double.parseDouble(string.trim()));
+        setValue(Double.parseDouble(handleUndefinedValues(string).trim()));
     }
 
     @Override

trick_source/java/src/trick/common/utils/vs/VSFloat.java

@@ -12,7 +12,6 @@ public class VSFloat extends VSValue<Float> {
 
     @Override
     public void fromVariableServer(String string) {
-        setValue(Float.parseFloat(string.trim()));
+        setValue(Float.parseFloat(handleUndefinedValues(string).trim()));
     }
-
 }

trick_source/java/src/trick/common/utils/vs/VSValue.java

@@ -44,4 +44,19 @@ public abstract class VSValue<T> implements VariableServerFluent, Cloneable {
         }
     }
 
+    protected String handleUndefinedValues(String input) {
+        if(input.equals("inf")) {
+            input = "Infinity";
+        }
+        else if(input.equals("-inf")) {
+            input = "-Infinity";
+        }
+        else if(input.equals("nan")) {
+            input = "NaN";
+        }
+        else if(input.equals("-nan")) {
+            input = "-NaN";
+        }
+        return input;
+    }
 }