[texhax] Some puzzling TeX

Rod Harries rod at harries.net.nz
Thu Feb 17 00:44:25 CET 2011


I am trying to understand why  one would write

\def\:{\let\@sptoken= } \: %

instead of just \let\@sptoken=   %
or \def\@sptoken{ }

Explanations (preferably designed for the simple-minded) would be appreciated.

Rod Harries






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