Re: [R] Is there a better way to parse strings than this?

From: Gabor Grothendieck <>
Date: Thu, 14 Apr 2011 21:22:43 -0400

On Thu, Apr 14, 2011 at 8:28 PM, Chris Howden <> wrote:
> Thanks for the suggestions, they were all exactly what I was looking for.
> (I knew that had to be a more elegant way then my brute force method)
> One question though.
> I was playing around with strsplit but couldn't get it to work, I realised
> my problem was that I was using "." as the string.
> I was trying strsplit(string,"\.\.\.") as per the suggestion in Venables
> and Ripleys book to "(use '\.' to match '.')", which is in the Regular
> expressions section.
> I noticed that in the suggestions sent to me people used:
> strsplit(test,"\\.\\.\\.")
> Could anyone please explain why I should have used "\\.\\.\\." rather than
> "\.\.\."?

"\\.\\.\\." is the string \.\.\. For example, try this

> cat("\\.\\.\\.\n")


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email: ggrothendieck at

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Received on Fri 15 Apr 2011 - 01:25:32 GMT

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