[OS X TeX] PDF Sync and different fonts/encodings?

[Frank STENGEL]

Le 6 févr. 06 à 18:54, Morten Høgholm a écrit :

>
> Careful, the above will most likely lead to an error like
>   ! TeX capacity exceeded, sorry [input stack size=5000].
>
> What we want here is to insert \@PDFSYNC unexpanded into \everymath  
> while making sure we do not get an infinite loop with \everymath  
> calling itself. Hence the above code should be
>   \expandafter\everymath\expandafter{\expandafter\@PDFSYNC\the 
> \everymath}

Thanks. To test the line I posted, I had actually tried adding  
something to pdfsync's \everymath, and that worked: the thing I had  
added was non expandable. I am not surprised the reverse would  
fail... By the way, why doesn't the following work?

\expandafter\everymath\expandafter{\noexpand\@PDFSYNC\the\everymath}


> \begin{texnote}
> Token registers like \everymath take an optional <filler text>  
> which may appear before the mandatory {. Hence you can cheat and  
> omit the first \expandafter and simply write
>   \everymath\expandafter{\expandafter\@PDFSYNC\the\everymath}
> Not of much use here but nice if you for instance wanted to make a  
> global assignment to \everymath, where \@PDFSYNC was expanded once  
> (or maybe even twice).
>
> Yes, TeX's syntax rules are plenty and sometimes a little weird... :-)

Oh yes... For me \expandafter trickery still is a game with many  
errors and few successes ;-)


-- 
Frank STENGEL (fstengel<at>mac.com)

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