Re: max and min operators in draw_round_box

[David Kastrup]

Tyler Mitchell <address@hidden> writes:

> On Wed, Jan 09, 2019 at 12:27:13PM +0000, Stephen Wilkinson wrote:
>> [...] it seems to be a struggle to get the postscript file to
>> open in anything at all.
>
> I looked at this and it seems the culprit is the draw_round_box
> procedure which uses 'max' and 'min' operators, which are not part
> of standard PostScript, but are available in Ghostscript:
>
> https://en.wikibooks.org/wiki/PostScript_FAQ#Where_are_min_and_max_functions?
>
> Adding this to the PostScript output (before draw_round_box is
> defined) makes it double-clickable in OS X:
>
>  /min { 2 copy gt { exch } if pop } bind def
>  /max { 2 copy lt { exch } if pop } bind def
>
>
> Is it possible to include these in music-drawing-routines.ps so
> that the .ps output could be processed with non-Ghostscript
> interpreters?

I'd rather we make the input not depend on those functions in the first
place: the names are too generic for comfort.

Looks like my fault: their use can be traced to a commit of mine from
2013.  I'll fix that.

-- 
David Kastrup