[XeTeX] Frenchspacing in XeTeX

[Bruno Voisin]

Le 1 nov. 04, à 12:18, Jonathan Kew a écrit :

> Indeed. It's interesting to look at the three variations you get from 
> this sample:
>
> 	% a plain XeTeX test...
> 	\font\rm="Hoefler Text" at 12pt
> 	\font\it="Hoefler Text Italic" at 12pt
> 	\font\bf="Hoefler Text Black" at 12pt
> 	
> 	\rm
> 	[Transl. from {\it Inzh.-Fiz. Zh.} {\bf 39}, 619–623.]
> 	
> 	[Transl.\ from {\it Inzh.-Fiz. Zh.} {\bf 39}, 619–623.]
> 	
> 	\sfcode`\.=1000
> 	[Transl. from {\it Inzh.-Fiz. Zh.} {\bf 39}, 619–623.]
> 	
> 	\end
>
> I think the middle of the three works best.

Indeed. I was really confused until trying a fourth variation which 
should be the syntactically correct plain TeX input, I think:

	[Transl.\ from {\it Inzh.-Fiz.\ Zh.}\ {\bf 39}, 619–623.]

It gives the same output as the above third variation, indicating thus 
that:

- \frenchspacing and the equivalent \sfcode`\.=1000 do what they are 
supposed to do (namely making all spaces stretch by the same amount on 
a given line).

- "\ " does not work as it should when applied to Hoefler Text Italic. 
Or is this caused by the presence of the "-"?

Bruno