From: Kristaps Dzonsons <kristaps@bsd.lv>
To: tech@mdocml.bsd.lv, "Andreas Vögele" <ports@andreasvoegele.com>
Subject: Fwd: Re: mandoc rendering of \*(--
Date: Sun, 26 Dec 2010 16:34:46 +0200 [thread overview]
Message-ID: <4D175286.40708@bsd.lv> (raw)
Forgot to forward this, sorry...
> Dear Kristaps,
>
> when rendering the following example with "pod2man example.pm | mandoc"
> the character sequence "--" is rendered as "O-".
>
> --------8<--------8<--------8<--------8<--------
> =head1 Principle of Least Surprise
>
> Perl does the parsing -- no surprises.
> --------8<--------8<--------8<--------8<--------
>
> Tested with mandoc 1.10.8 from OpenBSD's source tree.
>
> Kind regards,
> Andreas
Andreas,
Note that this is being CC'd to tech@mdocml, so that this issue is
documented. I'm pretty sure it's been reported before.
So yeah... pod2man... this is a well-known "issue" wherein
\*(--
is assigned by a `ds' to
\(*W-
If you look in mandoc_char.7, you'll see that *W is the special
character capital Greek omega (O). So mandoc outputs "O-". Makes
sense, right?
However, pod2man runs `tr \(*W-', which makes all instances of \(*W be
turned into -. mandoc doesn't (yet) support `tr'. So basically,
pod2man overwrites the default character behaviour of the Greek omega.
Since pod2man masks special characters in its input (it re-writes "\*(W"
as "\e*(W"), apparently they think this is ok. I think it's a dumb
hack, but whatever.
Anyway, I'll add a note to the TODO that `tr' should be implemented. It
doesn't look too hard and will fix the problem.
Thanks,
Kristaps
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