/// <summary> Display command</summary>
internal virtual void doDisplay()
{
try
{
if (!hasMoreTokens())
doInfoDisplay();
else
{
// followed by an expression (i.e. a line we just pull in)
String s = restOfLine();
// first parse it, then attempt to evaluate the expression
ValueExp expr = parseExpression(s);
// make sure no assignment
if (expr.hasSideEffectsOtherThanGetters())
throw new System.UnauthorizedAccessException();
// it worked so create a new DisplayAction and then add it in
DisplayAction b = new DisplayAction(expr, s);
b.Enabled = true;
displayAdd(b);
}
}
catch (System.UnauthorizedAccessException)
{
err(LocalizationManager.getLocalizedTextString("noSideEffectsAllowed")); //$NON-NLS-1$
}
catch (System.NullReferenceException)
{
// already handled by parseExpression
}
}
internal virtual bool displayAdd(DisplayAction a)
{
return m_displays.Add(a) >= 0;
}