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[bug #61386] [man] TH 'extra2' argument can overrun center footer

From: G. Branden Robinson
Subject: [bug #61386] [man] TH 'extra2' argument can overrun center footer
Date: Tue, 26 Oct 2021 08:49:40 -0400 (EDT)
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0

Follow-up Comment #3, bug #61386 (project groff):

Hi Deri,

[comment #2 comment #2:]
> Seems to me this is not a groff problem, but a weakness in the way the man7
site generates the pages. If you choose to deliver the pages as linked pdfs
(rather than html), the problem is not present.

But the problem eventually crops up even at -rLL=78n or even wider lengths. 
Given _any_ line length, a fourth argument to .TH can be contrived that will
cause a problem.  And not all such contrivances will be willfully perverse. 
"groff" is a fairly short project name and in this era of "Git versions", I
expect version numbers to be as garrulous as ours can be.

> This is a problem with the workflow generating the pages. I don't understand
why the line length is set to 72 characters when most webpages are
considerably wider. Use 82 characters and the problem in your example
disappears. Why make this change if the "problem" is external to groff. The 72
char limit is related to punch cards (the last 8 chars were for a sequence
number (if you bothered - should see me trying to use a hand punch!!!)
> (file #52158)

I'm a little too young to have dealt with punch cards, but I remember computer
video displays with 64 or 32 characters per line...

Speaking of linked PDFs, how _do_ I embed a hyperlink so that gropdf will
handle it?  I don't see anything in gropdf(1) about this.



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