From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <dd6fe68a0811120812o3bf0b8a3o214df4aec0e83fe5@mail.gmail.com>
Date: Wed, 12 Nov 2008 08:12:29 -0800
From: "Russ Cox" <rsc@swtch.com>
To: "Fans of the OS Plan 9 from Bell Labs" <9fans@9fans.net>
Subject: Re: [9fans] Quick ms macros question
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On Wed, Nov 12, 2008 at 7:19 AM, Gregory Pavelcak
<g.pavelcak@comcast.net> wrote:
> This is a bit more mundane than recent discussions, but I
> noticed that the ms macros contain this
>
>        .ie h .ll \\n(LLu
>        .el \{\
>        .ll 5.0i
>        .if n .if \\n(TN .ll 29
>        .if t .if \\n(TN .ll 3.5i \}
>
> as part of .de TL. What is '.ie h'? I thought the only single character
> conditions were e, o, n, or t. /sys/doc/troff confirms this, and a look
> at the sources left me wondering. So, again, what does '.ie h' mean?

In troff, h, like any other single-character that's not e o n t, is
always false.
In htmlroff, h is true.

Russ