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bug#17657: pretty-print #:width values above 49 don't work?
From: |
Andy Wingo |
Subject: |
bug#17657: pretty-print #:width values above 49 don't work? |
Date: |
Tue, 21 Jun 2016 16:47:20 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) |
Hi :)
On Sun 01 Jun 2014 20:40, Mark H Weaver <address@hidden> writes:
> Mark Polesky <address@hidden> writes:
>> Neither example below should be line-wrapped, but the second one
>> is.
>
> Our pretty printer, inherited from SLIB and originally written by Marc
> Feeley, uses a great many heuristics to make formatting decisions.
> These heuristics are undocumented and subject to change.
>
> One of its heuristics is that individual expressions shall not be more
> than 49 columns wide. Notice that pretty-print.scm includes the
> following internal definition:
>
> (define max-expr-width 50)
>
> (although in fact the maximum width ends up being 49)
>
>> Is there a workaround?
>
> A couple of years ago I added an undocumented #:max-expr-width keyword
> argument to pretty-print, in order to improve the formatting of
> psyntax-pp.scm. You could use that.
Just pushed some documentation, so this bug is done.
> It would be good to redesign and rewrite our pretty-printer from scratch
> at some point.
Yes!
Andy
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