[texhax] Preserving dash when hyphenating compound words

[Uwe Lueck]

Hello Alex,

Aleksandar Zec , 27.08.2010 21:41:03
>2010/8/19 Uwe Lueck :
>[...]
>> \hyp or that macro it calls according to the hyphenat documentation might be redefined (about as follows) or you use some \dhyp or so instead of \hyp with
>>
>>    \newcommand{\dhyp}{\discretionary{-}{-}{-}}
>>
>> (not tested, sorry; if it works, why use hyphenat?) cf. TeXbook on \discretionary.
>
>This \dhyp indeed produces intended additional dash, but it disables
>hyphenation of compound words. I actually need
>
>straw-chop-
>per
>
>straw-
>-chopper

you are right, I didn't think of this. 

>and hyphenat's \BreakableHyphen serves this purpose. So, some
>experimenting shows that this code gives good results in all cases:
>
>------------------------------------------------------
>\documentclass{article}
>\usepackage{hyphenat}
>\newcommand{\dhyp}{\discretionary{-}{}{}%
>  \ifmmode-\else\BreakableHyphen\fi}
>\begin{document}
>\noindent\fbox{%
>\begin{minipage}{2cm}%
>and electroencephalography\\
>straw\dhyp{}chopper\\
>\hspace*{1.1cm}straw\dhyp{}chopper
>\end{minipage}%
>}
>\end{document}
>------------------------------------------------------
>
>Not very elegant, though.

I should be able to find a more elegant solution, once I studied these things -- but must do other things right now.

Cheers,

    Uwe.