[ruby-talk:03969] Re: Are named formal parameters in recent ruby interpreters?

Robert Feldt <[e-mail]> writes:

> I picked up the lines:
> > 		new_img = TkPhotoImage.new('file'=> filename)
> > 		image_widget.copy(new_img, 'subsample' => "8 8")
> > 
> in a previous post by Andy Hunt. So I guess "name-wise" method formal
> parameters (I don't recall the correct name for X.new('file' => filename)
> type of parameter assigment) is now in Ruby. Is this in the 1.5 revision
> chain? Any docs or examples on how to use this?

Unfortunately they're not there yet. What you're seeing here is a
feature of Ruby method calling: if the last parameter to a method is a 
Hash literal, you can leave off the {}'s

    copy(new_img, 'subsample' => [8,8], 'gamma' => 1.3)

is just shorthand for

    copy(new_img, { 'subsample' => [8,8], 'gamma' => 1.3 } )


Regards


Dave