Quote:
Originally Posted by chaley
You almost certainly don't want the function select, which operates on lists of colon separated items. You probably want the function contains, which operates on plain text. The regexp for contains would be something like . (a period), testing if the field contains at least one character.
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Thank you, that was exactly the nudge into the right direction I needed. :-)
So, the solution to my problem as initially described is rather simple:
program: contains(field('#foo'),'.','Yes','No')