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Message-ID:  <55DCFF96.6070708@clear.net.nz>
Date:         Tue, 25 Aug 2015 16:51:50 -0700
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From: aparsloe <aparsloe@CLEAR.NET.NZ>
Subject: ... _case_in_ ... functions?
To: LATEX-L@LISTSERV.UNI-HEIDELBERG.DE
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Envelope-To: <rainer.schoepf@GMX.NET>
Status: R

There have been a number of occasions in my recent (no doubt amateurish) 
efforts when I have wished there were (e.g.) a \tl_case_in:NnTF 
statement, in which a token list variable is tested not for equality 
against a single token in each case, but whether it is in a token list 
in each case:

\tl_case_in:Nn <tl-var>
     {
         { token list 1 } {  code 1 }
         { token list 2 } { code 2 }
         ...
     }
     ...
An analogy would be the Select Case statement from dear old 
line-numbered BASIC in which the various alternatives were statements 
like <5,  =6, >7, and so on.

Andrew


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