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From: robin@lsl.co.uk (Robin Fairbairns)
Newsgroups: comp.text.tex,aus.tex
Subject: Re: LaTeX: Hyphenation Problem
Message-ID: <1991Jun14.143616.776@lsl.co.uk>
Date: 14 Jun 91 14:36:16 GMT
References: <1991Jun13.070121.1906@sserve.cc.adfa.oz.au>
Organization: Laser-Scan Ltd., Cambridge
Lines: 35

In article <1991Jun13.070121.1906@sserve.cc.adfa.oz.au>, mgb@csadfa.cs.adfa.oz.au (Michael Barlow) writes:
> Hi, I'm having a problem with hyphenation under LaTeX and wonder if
> someone could help.
> 
> I'm using a number of hyphenated words like non-normalised and
> log-concatenated. These occur in the captions of a large number of
> figures and tables. When I generate a lof or lot I get a large number
> of overfull hbox errors because it doesn't want to hypenated these
> words anywhere but at the original hyphen.
> 
> I've tried things like \hyphenation{nor-mal-ised}
> but of course normalised isn't the same word as non-normalised!...
> and \hyphenation{non-nor-mal-ised} won't work either as it looks for
> the word nonnormalised. 
> 
> I know I can go around and individually hyphenate these words but it
> would be much nicer if there was a simple, one place, fix.

This is because of the jolly rules of `proper' typesetting - don't (they
say) hyphenate a word that's already been explicitly hyphenated.

I picked up the following hack from Barbara Beeton ages ago, and include
it in all the style files I write - it needs to be inserted in the final
pass (so non-normalised goes to non\hyph normalised), to get rid of
those otherwise un-removable bad \hbox{es}. It's the `breakable hyphen'
command: 

      \def\hyph{-\penalty0\hskip0pt\relax}

You could play tricks mapping it to a character that's made active for 
the purpose, but `-'?  Mmmm...
-- 
Robin Fairbairns, Senior Consultant, postmaster and general dogsbody
Laser-Scan Ltd., Science Park, Milton Rd., Cambridge CB4 4FY, UK
Email: robin@lsl.co.uk  --or--  rf@cl.cam.ac.uk