[ruby-talk:7261] Ruby/Tk Option Database Question

I am playing with ruby/tk. Could anyone give me some hints on how to use
the option database functions. In Perl, you can use

$widget->optionAdd(pattern=>value  ?,priority?);
$widget->optionClear;
$widget->optionGet(name, class);
$widget->optionReadfile(fileName ?,priority?);

to access the options. Basically, I try to set the font of an application,
I think I can do something like

root = TkRoot.new{ title 'Testing'}
root.optionAdd( 'pattern' = '*font', 'value' = "'verdana', 12, 'bold'")

However, I don't think optionAdd is availble in ruby/tk.

Steve