NSBrowser modifications ?

[Pierre-Yves Rivaille]

While playing around with the NSBrowser, i added the possibilities to
move in it using the page up/page down keys & the alphanumerical keys :
 - pressing 'c' select the first item starting with a 'c' (wrapping around
    if necessary)

do you think this behaviour should be added to NSBrowser ?
(was it part of OpenStep ?)

By the way how can one recognize a unicode character which is not a
function key (i.e. that can be displayed) ?
(i use (character < 0xF700) is it the right way ?)

Pierre-Yves