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Append the contents of an environment to a hook using \gappto
I have a global hook (=macro) that should be appended to whenever an environment is executed. (Here, defined by the \bhook-\ehook pair.) However, I was unable to derive a working solution.
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votes
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How to add a hook to a macro
LaTeX uses hooks extensively, one method employed is the command g@addto@macro. It is defined in source2e as:
\long\def\g@addto@macro#1#2{%
\begingroup
\toks@\expandafter{#1#2}%
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