Method getVariableImpl

src/bsh/ExternalNameSpace.java:164–199

( String name, boolean recurse )

		if they are removed via the extenal map.
	*/
    protected Variable getVariableImpl( String name, boolean recurse ) 
		throws UtilEvalError
	{
		// check the external map for the variable name
		Object value = externalMap.get( name );

		if ( value == null && externalMap.containsKey( name ) )
			value = Primitive.NULL;

		Variable var;
		if ( value == null ) 
		{
			// The var is not in external map and it should therefore not be
			// found in local scope (it may have been removed via the map).  
			// Clear it prophalactically.
			super.unsetVariable( name ); 

			// Search parent for var if applicable.
			var = super.getVariableImpl( name, recurse );
		} else
		{
			// Var in external map may be found in local scope with type and
			// modifier info.
			Variable localVar = super.getVariableImpl( name, false );

			// If not in local scope then it was added via the external map,
			// we'll wrap it and pass it along.  Else we'll use the local
			// version.
			if ( localVar == null ) 
				var = new Variable( name, (Class)null, value, (Modifiers)null );
			else
				var = localVar;
		}

		return var;
    }
	
	/**
	*/