[R] Regex matching that gives byte offset?

[Prof Brian Ripley]

Do you mean like regexpr() (on the same help page)?

Depending on your locale, you might actually prefer the character 
offset: if you want to match in a MBCS and have byte offsets you will 
need to work a bit harder if useBytes=TRUE is not sufficient for you.

On Wed, 28 Oct 2009, Johannes Graumann wrote:

> Hi,
>
> Is there any way of doing 'grep' ore something like it on the content of a
> text file and extract the byte positioning of the match in the file? I'm
> facing the need to access rather largish (>600MB) XML files and would like
> to be able to index them ...
>
> Thanks for any help or flogging,
>
> Joh
>
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-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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