in reply to build regular expression from scalar?

Have you tried your sample code in a test script? I suspect you'll be pleasantly surprised.

(Hint: do not use the /o option for regexes when doing this. You'll be unpleasantly surprised.)

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We are the carpenters and bricklayers of the Information Age.

The idea is a little like C++ templates, except not quite so brain-meltingly complicated. -- TheDamian, Exegesis 6

... strings and arrays will suffice. As they are easily available as native data types in any sane language, ... - blokhead, speaking on evolutionary algorithms

Please remember that I'm crufty and crochety. All opinions are purely mine and all code is untested, unless otherwise specified.

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