[tex-eplain] \leavevmode in front of hyperlinks

[geolsoft at mail.ru]

On Fri, Jul 22, 2005 at 08:12:16PM +0200, Karl Berry wrote:
> Seems like the cleanest thing to do is just \ifvmode\leavevmode\fi
> before outputting a link.  (Of course this should only be done if
> hyperlinks are actually enabled.)

OK, I will do this.  But what is the reason for \ifvmode ?
plain.tex defines \leavevmode as

  \def\leavevmode{\unhbox\voidb at x}

so it is just a no-op in horizontal mode.  Knuth actually
uses it in several macros without the \ifvmode.

-- 
Best regards,
Oleg Katsitadze