[R] regexp inside and outside brackets

Adrian Dușa dusa.adrian at unibuc.ro
Fri Dec 11 14:50:28 CET 2015

For the regexp aficionados, out there:

I need a regular expression to extract either everything within some
brackets, or everything outside the brackets, in a string.

This would be the test string:
"A1{0}~B0{1} CO{a2}NN{12}"

Everything outside the brackets would be:

"A1 ~B0 CO NN"

and everything inside the brackets would be:

"0 1 a2 12"

I have a working solution involving strsplit(), but I wonder if there is a
more direct way.
Thanks in advance for any hint,

Adrian Dusa
University of Bucharest
Romanian Social Data Archive
Soseaua Panduri nr.90
050663 Bucharest sector 5

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