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To: 9front@9front.org
CC: igor@9lab.org
Date: Mon, 21 Jun 2021 01:22:34 +0200
From: igor@9lab.org
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X-Bullshit: responsive responsive pipelining pipelining-aware extension 
Subject: Re: [9front] usb(3) patch
Reply-To: 9front@9front.org
Precedence: bulk

Quoth Alex Musolino <alex@musolino.id.au>:
> > The print version of usb(3) contains a verbatim `delim $$` at
> > the top of the page. Remove it as it looks like a mishap that
> > occurred during a bulk import (see `git/log /sys/man/3/usb`.
> 
> No, this is required.  It is setting the delimiter for eqn(1).  Have a
> look at /sys/man/3/usb:369.  Without setting the delimiter this part
> is ignored by eqn(1) and rendered incorrectly when viewed with page
> (e.g. `man -P 3 usb`).

Ah, yeah. Thanks for the explanation.

I realise I did not accurately state where I saw the issue, namely
with the printed version of the manuals. There, at the top of the
page there is a verbatim `delim $$` printed, here a picture:

• https://9lab.org/img/plan9/random/usb3.man.book.jpg

Need to repro the typesetting steps of the book and see what
happened there…