From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org
X-Spam-Level: ****
X-Spam-Status: No, score=4.7 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED,
	FROM_SUSPICIOUS_NTLD,FROM_SUSPICIOUS_NTLD_FP,PDS_OTHER_BAD_TLD,
	T_SCC_BODY_TEXT_LINE,T_TVD_MIME_EPI autolearn=no autolearn_force=no
	version=3.4.4
Received: (qmail 32413 invoked from network); 17 Sep 2022 17:03:40 -0000
Received: from bsd.lv (HELO mandoc.bsd.lv) (66.111.2.12)
  by inbox.vuxu.org with ESMTPUTF8; 17 Sep 2022 17:03:40 -0000
Received: from fantadrom.bsd.lv (localhost [127.0.0.1])
	by mandoc.bsd.lv (OpenSMTPD) with ESMTP id ca24df64
	for <ml@inbox.vuxu.org>;
	Sat, 17 Sep 2022 12:03:35 -0500 (EST)
Received: from tarta.nabijaczleweli.xyz (139-28-40-42.artus.net.pl [139.28.40.42])
	by mandoc.bsd.lv (OpenSMTPD) with ESMTP id f8a19e33
	for <discuss@mandoc.bsd.lv>;
	Sat, 17 Sep 2022 12:03:34 -0500 (EST)
Received: from tarta.nabijaczleweli.xyz (unknown [192.168.1.250])
	by tarta.nabijaczleweli.xyz (Postfix) with ESMTPSA id 5E7FCA60
	for <discuss@mandoc.bsd.lv>; Sat, 17 Sep 2022 19:03:32 +0200 (CEST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=nabijaczleweli.xyz;
	s=202205; t=1663434212;
	bh=pNodLWFTiL35eLJCGaH10MAjTafyjUOr9XHLOPzaj7E=;
	h=Date:From:To:Subject:From;
	b=QEV0Saxz3AIDWIn3+Ju3VE1FZDY40lGbmwiM8PKfvsjHjTh3KBcZSmvppO49H+peZ
	 uWEYwlDbKaU+Gve7WoiMoDCHAhlR65rOr9B+9gNTmCLgr5w3x/YQldk6OtsWkWb+Vm
	 Ub84f6acfE7p+NeVUYk+n65ZEa7smdCkJggLJSZYj0Pm1Fm7UgupHeadzV+0MLSraz
	 ySG1gU/9TWvADhIb/taOOoyLSDqNi9tF21wEoiwj9iDosVblNAy+sJNIgvY6dGW+4w
	 Wb07Y9iLT1qM1e8UkV2ZqDM5yGHXD1+LA760prcoKw3FRoL/frsNufW/HAoafGJIpx
	 yQIz5iNN2Gca+Erb0DJYtbjTENWpRhlIyS8M72lTuaLk52wfAPqgssZU3hRv7fgcQ6
	 iMItjPSPFbITKd8Cg23NoEPT7SmecMWdNPmYQU4R7gujjv0hGRoutk2fc7tD0Dk3yu
	 X5BslL+MwnyxZQaT7BcstZmpgyToXK0an16vKNTX74sFLbV6964T3aG5YfrGSZ3VnU
	 +BhG9rjRJOihYD6pstJj8jl7PYa8Tgktt6v0TfPyid5Z6rCH+v+e347bJpEOHQnixW
	 tuHy3frju4N8QgJ8IifldwVlB2GSMChFN/CWfhrTnnbJiGmBKjGACkuNy3d5v3xtp2
	 5cYE0ncT8918ARIC3eurL808=
Date: Sat, 17 Sep 2022 19:03:31 +0200
From: =?utf-8?B?0L3QsNCx?= <nabijaczleweli@nabijaczleweli.xyz>
To: discuss@mandoc.bsd.lv
Subject: No/broken handling of backspaces in the source?
Message-ID: <20220917170331.otv4msv3aebcyizy@tarta.nabijaczleweli.xyz>
X-Mailinglist: mandoc-discuss
Reply-To: discuss@mandoc.bsd.lv
MIME-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha512;
	protocol="application/pgp-signature"; boundary="xhjub4xwiqfo2a74"
Content-Disposition: inline
User-Agent: NeoMutt/20220429


--xhjub4xwiqfo2a74
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

Hi!

A common pattern in very old (especially pre-troff) manuals I read often
is "aecn^H^H^H^H____" used to underline aecn =E2=80=92 this is a trivial
consequence of being made for typewriters.

[In the following examples a diacriticised character is used to
 represent that character but underlined.]

groff handles this correctly, i.e.
  printf 'aecn\b\b\b\b____ ____\b\b\b\bAECN\n.br\na\b_\t_\bA'
is rendered by groff as
  =C4=85=C4=99=C4=87=C5=84 =C4=84=C4=98=C4=86=C5=83
  =C4=85       =C4=84
and by less as
  =C4=85___ =C4=84ECN
  .br
  =C4=85       =C4=84
but by mandoc (1.14.5-1 and current CVS) as
  aecn????____ ____????AECN
  a?_  _?A

It's unclear to me if this is supposed to happen, but I didn't see it in
the TODO, so.

Best,
=D0=BD=D0=B0=D0=B1

--xhjub4xwiqfo2a74
Content-Type: application/pgp-signature; name="signature.asc"

-----BEGIN PGP SIGNATURE-----

iQIzBAABCgAdFiEEfWlHToQCjFzAxEFjvP0LAY0mWPEFAmMl/eAACgkQvP0LAY0m
WPF+3w/8Cq7WbUMTTdhLpKI0i++fYA5B9xPYrYBIbDXCdPheCfr3wNZIYfnJGZIA
HuwQ/O3gc2TIvIL3OgfAuY8Ltm2K5Dr5bekVRkBmGsLPfXd6/RDogXc2g/s6N2i7
aMz+vw/Qmxq66UfnfWuRdxZHk1ZeKb9MmqsC9ZgA7ptbkx6EaLLwbPE3ZW9YhZJw
jFz4Em0HrWZHkXeV5+tA3WsYZzNSrEgRTy9Ioe6tEYVoncO9FwD1/l5yV5zUDZtJ
AZLBhF20VU2j4zp8YGuALBCc0LFWSM7et80IvwqjvwX00vCwjfhEIdSFsuWA1zX+
9vn0kAtR8n7Wl7EGeyBUoPz5DGm1FuuENhu+Sa8UrmkdUou+pRnBvweDa0k7YUhn
clFEO/EGdwYeN/JGYBvVOO+Ryxvm7PGiXC4s3pRcYAGJU2nqNm6TbMbQTaRXqT3z
CwRRJK3SXfeAm5Z4bQ4xculCSYO3V39jHVoePGt90M/Jxf8508NPqyggpgDBI3Y8
vActR51eVmq5OFy+Rk87PXAzN3dko5HQkd7WoT0KU3jb2WvMR6YqWhBYQlFeAhMm
AcqneKCkLXOSvwQfgXFboW/zyTQPlhGJ/GOqAnQbfhMZZsDhHvxEbT4ie7qDMYMl
0W5ebogGAhfc2uxllKycKGVq65/ACGPq+lk2KJ4HMdngkJZNqNI=
=hhBe
-----END PGP SIGNATURE-----

--xhjub4xwiqfo2a74--
--
 To unsubscribe send an email to discuss+unsubscribe@mandoc.bsd.lv