[R] regex [:digit:] gives diffrent result

[William Dunlap]

Shouldn't your "[:digit:]" be "[[:digit:]]"?
Bill Dunlap
TIBCO Software
wdunlap tibco.com


On Mon, Feb 6, 2017 at 10:36 AM, Tilmann Faul <Tilmann_Faul at t-online.de> wrote:
> Using R is a grate advantage, thanks for your work.
>
> Using regex under R 3.1.1, Debian 8.6 jessy works fine.
>
> str_detect("16-03-08", "[:digit:]{2}")
> [1] TRUE
> str_detect("16-03-08", "[0-9]{2}")
> [1] TRUE
>
> runing the same code under R 3.3.2 backport, Debian 8.6 jessy gives a
> different result. This is also a different computer.
>
> str_detect("16-03-08", "[:digit:]{2}")
> [1] FALSE
> str_detect("16-03-08", "[0-9]{2}")
> [1] TRUE
>
> Is this intended?
> My workaround is using [0-9] instead of [:digit:].
>
> Thanks
> Tilmann
>
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