[exim] opposite of ${str2b64:<string>}

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Author: WJCarpenter
Date:  
To: exim-users
Subject: [exim] opposite of ${str2b64:<string>}
I was surprised to find that there is a string operator for encoding
into base64 but no operator for decoding back out of base64. Am I
overlooking it somewhere?

(I'm looking for a safe way to carry around some lists of arbitrary
strings. exim has a lot of quoting operators, but it's not completely
clear which quotings are safe to use with which list operators. I
thought I'd just bypass that puzzle completely by
base64-encoding/decoding as necessary.)

TIA
-- 
bill-exim@??? (WJCarpenter)    PGP 0x91865119
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