// execute the selection line. If substitute is true, replace selection with $VV
public void ExecuteSelectionLine(bool substitute)
{
int lineNo = GetLineFromCharIndex(SelectionStart);
string line = Lines[lineNo];
if (substitute && SelectionLength > 0)
{
int lineStartIndex = GetFirstCharIndexFromLine(lineNo);
line = line.Substring(0, SelectionStart - lineStartIndex) + "$VV" + line.Substring(SelectionStart + SelectionLength - lineStartIndex);
RunCsi.interp.SetValue("VV", float.Parse(SelectedText));
Console.WriteLine(".>. " + line);
}
parent.quiet = true;
RunCsi.interp.ProcessLine(GuiConsoleForm.CleanLine(line));
// parent.DelayedExecute(line);
}