[9fans] Quick ms macros question

[9fans] Quick ms macros question

[Gregory Pavelcak]

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?

Thanks.

Greg

Re: [9fans] Quick ms macros question

[Russ Cox]

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