I'd like to expand a macro inside \AtBeginDocument, although I guess the concrete macro does not matter.


  \AtBeginDocument{\@input@{helper\x .tex}}%

Do something with the definitions from helper1.tex etc. 

The file inclusion works without the \AtBeginDocument{...}, and of course it does not work with it, as \x is not expanded at call time. I have the feeling the right amount of \expandafters in the right places will do the job, but I don't see it.

1 Answer 1


Or with expl3:

\clist_map_inline:nn { 1 , 2 , 3 }
  • 2
    +1 I suppose: you were quicker by a second as \x shorter than \tmp Jul 4, 2013 at 22:59
  • @DavidCarlisle That's almost automatic; isn't using \x with six different meanings lovely?
    – egreg
    Jul 4, 2013 at 23:01

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