[texhax] Some puzzling TeX (\@sptoken)

Philip TAYLOR (Webmaster, Ret'd) P.Taylor at Rhul.Ac.Uk
Wed Jun 1 21:48:38 CEST 2011

Uwe Lueck wrote:
> The essential "thesis" of my earlier posting (below) was:
>      an explicit definition of<optional spaces>  does not provide
>      an explicit definition of<one optional space>

<one optional space>\is<space token>\alt<empty>

The quantity ^\<space token>, which was used in the syntax of \<optional
spaces> above, stands for an explicit or implicit space.


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