On Tue, Apr 24, 2012 at 10:52 AM, arunkumar1111 <akpbond...@gmail.com> wrote:
> I have a long string. i want to sepearate a 10 digit phone no from it.
>
> eg
>
>
> "my no is 9876543210 is personal no and my official no is 123-456-8907. you
> can use any of these"
>
> i want to seperate the 9876543210 and 123-456-8907 from this. therev may be
> many phone nos in the string. how to do it
Try this:
library(gsubfn)
pat <- "\\b\\d{3}-?\\d{3}-?\\d{4}\\b"
strapply(x, pat, c, perl = TRUE, simplify = c)
The last line gives this:
[1] "9876543210" "123-456-8907"
If its likely that any string of digits and minus signs which has 10
to 12 characters is a phone number then you could use this less
accurate but shorter pattern:
pat <- "[-0-9]{10,12}"
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