[XeTeX] no hyphenation with fontspec

[Jonathan Kew]

On 21 Dec 2006, at 10:38 pm, Pablo Rodríguez wrote:

> Jonathan Kew wrote:
>> You mean where there's a (Unicode) en-dash or em-dash? (Either in the
>> original input text, or as a result of a font mapping.)
>>
>> If so, you may want to set the parameter
>>
>>    \XeTeXdashbreakstate = 1
>>
>> I'm not sure if either of the parts of the compound word will be
>> eligible for hyphenation in this situation; normally, if there's an
>> explicit hyphen/dash, TeX does not attempt to further hyphenate the
>> two parts. If you want to allow that, you probably need some
>> additional code to introduce some (possibly zero-width) glue.
>
> It worked the way you said.
>
> I want to further hyphenate the two parts with explicit en/em dashes
> (not with explicit hyphens).
>
> How should I include the glue into my code to do this? (I have no idea
> of how this should be implemented.)

At the most "primitive" level, you could enter

   Frommann\hskip0pt--\hskip0pt Holzboog

in your document, but of course that gets tedious and error-prone.

With

   \newcommand\allowhyph{\hskip0pt }

you could say

   Frommann\allowhyph--\allowhyph Holzboog

instead, which is marginally nicer.

Better still, though, would be to define a \dash command that  
includes the glue you want, and use that in the text:

   \newcommand\dash{\hskip0pt--\hskip0pt }

   Frommann\dash Holzboog

HTH,

JK