On 7/9/2018 11:39 AM, Wolfgang Schuster wrote:
Hi Alan,
you should at least limit the scope of the command to math mode
\appendtoks
\let\t\mathtext
\let\w\mathword
\to \everymathematics
something
\ifdefined\t \else \unexpanded\def\t{\mathortext\text\mathtext} \fi
\ifdefined\w \else \unexpanded\def\w{\mathortext\word\mathword} \fi
\appendtoks
\let\t\mathtext
\let\w\mathword
\to \everymathematics
because sometimes a \t or \w is part of an expansion so we need it to be
defined then (for instance, Alan loves to put lots of complex math in
textext)
Hans
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