Re: [Gitk PATCH 1/6] gitk: Add procedure to create accelerated menus

[Robin Rosenberg <robin.rosenberg.lists@dewire.com>]

lördagen den 11 oktober 2008 03.40.09 skrev Paul Mackerras:
> Robin Rosenberg writes:
> 
> > +proc mcw {menubar args} {
> > +    set ai [lsearch $args "-label"]
> > +    if { $ai > 0 } {
> > +	set label [lindex $args [expr {$ai + 1}]]
> > +	foreach {l u} [::tk::UnderlineAmpersand $label] {
> 
> Where did you find out about ::tk::UnderlineAmpersand?  Is it part of
> the exported interface of Tk that we can rely on in future?

I found it here. http://wiki.tcl.tk/1632. It hints that it may not be unoffical. Seems to
original from: http://groups.google.com/group/comp.lang.perl.tk/browse_thread/thread/5b6f4c6a4a9f17b4/c9f8ab47800d27ee?lnk=st&q=#c9f8ab47800d27ee

so if someone thinks there is a problem we could replace it with UnderlineAmpersand
with tcl code to do the same (or rip it as is if the license allows it).

> 
> > +# Wrapper for mc to remove ampersands used for accelerators.
> > +proc mca {label} {
> > +    set tl8 [mc $label]
> > +    foreach {l u} [::tk::UnderlineAmpersand $tl8] break
> > +    return $l
> 
> 	return [string map {"&" ""} [mc $label]]
> 
> instead, perhaps?
In theory we should translate && to & also, which UnderLineAmpersand does.

-- robin