Hi all
I've been very quiet for a while so I thought it was about time I chimed
in again. I have come across the use of a regex expression in another
language which works like this:
acid1 = "Methionine = (S)-2-amino-4-(methylsulfanyl)-butanoic acid (2.13)"
acid2 = "Methionine = (S)-2-amino-4-(methylsulfanyl)-butanoic acid"
NumberAtEnd:= proc(S::string)
description
"Extract a parenthesized number, possibly containing periods, from
the end of a string":
local r;
if StringTools:-RegMatch("\\(([0-9.]*)\\)$", S, r$2) then r else
FAIL fi
end proc:
NumberAtEnd(acid1) returns "2.13"
NumberAtEnd(acid2) returns "FAIL"
How can this be done in VFP? Many thanks
Paul Newton
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