# [l2h] newbie, problem with \url + lyx

Frank Altpeter frank at altpeter.de
Mon Mar 22 14:42:39 CET 2004

Hello!

Sorry to disturb you with this again, but i found this in the l2h web
archive and have a question for this:

You wrote on Wed, 13 Sep 2000 09:58:44 +1100 (EST):

> There is no name clash in LaTeX, because e.g.
> \begin_inset LatexCommand \htmlurl[LyX]{http://www.lyx.org/}
> \end_inset
> is translated as:
>
> \IfFileExists{url.sty}{\usepackage{url}}
>                       {\newcommand{\url}{\texttt}}
>
> in the preamble (to cope with (La)TeX installation not knowing about
> url.sty),
> and:
> LyX \url{http://www.lyx.org/}
> in the LaTeX code.
>

Well, i'm just about having the same problem. I use LyX-1.3.4 and
latex2html-2002.2.1_2 here, and want to define URLs in a lyx file to
convert into html.

I find the above translated line in the tex file, but it seems that
latex2html doesn't know about \IfFileExists{} and so doesn't load
the url.sty and therefore the URLs are not generated.

If i export the LyX file into LaTeX and try to convert the LaTeX
file into html, i get the following eror:

Unknown commands: IfFileExists

If i remove the if routine and put a plain \usepackage{url} into it,
the error sounds like this:

No implementation found for style url'

though the url.sty is present (comes with latex2html in texinputs
subdir).

Do you have any idea where the problem might be?

With kind regards,

Frank Altpeter

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