# How to use condensed typewriter with latin modern and doc

I'm documenting a class with (ltx)doc. The macro names are quite long so I get a lot of overfull hboxes.

AFAIK latin modern has an additional typewriter font which is condensed. How do I switch the `doc` package to use that? I'd prefer a solution for pdflatex.

-
 As far as I can see it, the condensed typewriter font only comes in a light weight, which does not mix well with LMRoman in the medium weight. – Michael Ummels Jul 5 '11 at 16:03

Write this in the preamble of your document

``````\DeclareFontFamily{T1}{lmttc}{\hyphenchar \font-1 }
\DeclareFontShape{T1}{lmttc}{m}{n}
{<-> ec-lmtlc10}{}
\DeclareFontShape{T1}{lmttc}{m}{it}
{<->sub*lmttc/m/sl}{}
\DeclareFontShape{T1}{lmttc}{m}{sl}
{<-> ec-lmtlco10}{}
\renewcommand{\ttdefault}{lmttc}
``````

If you need OT1-encoding, change all `T1` into `OT1` and `ec-` into `rm-`.

With XeLaTeX or LuaLaTeX one can say

``````\setmonofont[HyphenChar=None]{Latin Modern Mono Light Cond}
``````