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From: "Stefan Monnier" <monnier+gnu/emacs@RUM.cs.yale.edu>
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Subject: Re: mode-line-element-to-string
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> 
> > Any objection to the patch below ?
> > I'd also welcome comments, especially suggestions for a better name.
> 
> emacs -q --no-site-file
> M-x ielm
> C-c C-b *scratch*
> <Enter>                                 ; enough times for the ELISP>
>                                         ; prompt to be at the bottom
>                                         ; of the Window
> (mode-line-element-to-string "%c/%l")   ; repeat till it crashes
> 
> Eventually it crashes in `display-count-lines'.

Damn!  The code relies on the current-buffer being the
buffer displayed in the selected-window.  Hmmm...


	Stefan