[R] Regex matching that gives byte offset?

[Johannes Graumann]

Hmmm ... that should do it, thanks. But how would one use this on a file 
without reading it into memory completely?

Joh


On Wednesday 28 October 2009 16:29:00 Prof Brian Ripley wrote:
> 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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