[texhax] Before and After Display Hooks

Vafa Khalighi vafa018 at gmail.com
Fri Apr 29 15:40:53 CEST 2011

There is \everydisplay primitive but how can you have something before
display and something after display. I mean can you define
\beforeeveryDisplay and \aftereverydisplay hooks? See this example:


So I could have

\beforeeverydisplay and \aftereverydisplay works for every single display
just like how \everydisplay works.
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