1

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. 

\newarray\Names
\newarray\Places
\readarray{\Names}{Alice,Bob,Charles,Steve,George}
\readarray{\Places}{Alberta,Bangkok,China,Saarland,Georgia}

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

\Places(\findindex{\Names}{Bob})

should output Bangkok.

How might I do this?

Improve this question
2
  • 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? Commented 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. Commented May 22, 2015 at 19:45

1 Answer 1

Reset to default
3

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

\documentclass{article}
\usepackage{xparse}

\ExplSyntaxOn
\NewDocumentCommand{\addperson}{mm}
 {
  \prop_gput:Nnn \g_luftbahn_person_place_plist { #1 } { #2 }
 }

\DeclareExpandableDocumentCommand{\Place}{m}
 {
  \prop_item:Nn \g_luftbahn_person_place_plist { #1 }
 }

\prop_new:N \g_luftbahn_person_place_plist
\ExplSyntaxOff

\addperson{Alice}{Alberta}
\addperson{Bob}{Bangkok}
\addperson{Charles}{China}
\addperson{Steve}{Saarland}
\addperson{George}{Georgia}

\begin{document}

Bob lives in \Place{Bob}.

\end{document}

enter image description here

Improve this answer

You must log in to answer this question.

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.