I'm using the arrayjobx to store data in arrays, and I want to search through those arrays.

For example, I might have a list of names and places and I want to search through those names to find the index of a given name in that array.


I want something like \findindex so that I can call the place associated to the person, e.g.


should output Bangkok.

How might I do this?

  • I'm not sure that arrayjobx is able to retrieve the index of an entry, without doing a loop over the whole array. Are you tied to arrayjobx or would you accept other solutions?
    – egreg
    May 21, 2015 at 17:45
  • I'd accept other solutions. Is there a good alternative to arrayjobx here? I did eventually figure out how to do a loop through the whole array to find the index, which solved my problem, though.
    – markoman
    May 22, 2015 at 19:45

1 Answer 1


You probably want a property list, rather than two independent arrays.


  \prop_gput:Nnn \g_luftbahn_person_place_plist { #1 } { #2 }

  \prop_item:Nn \g_luftbahn_person_place_plist { #1 }

\prop_new:N \g_luftbahn_person_place_plist



Bob lives in \Place{Bob}.


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