[Rd] Versions of PCRE, documenting what grep etc do.

[Dirk Eddelbuettel]

On Fri, Oct 24, 2003 at 07:46:41AM +0100, Prof Brian Ripley wrote:
> I have been looking at documenting what grep(perl=TRUE) does, and we
> have a similar problem in that the current PCRE, 4.4, implements rather 
> more of Perl's regexps than 3.9 (which is in 1.8.0 if the OS does not 
> supply it, and RH8.0 has PCRE 3.9. Whichever version of Debian is on franz 
> has PCRE 3.4).

FWIW the current line of R (>= 1.8.0) in Debian unstable has 

    Depends: [....] libpcre3 (>= 4.0) [...]
    
by virtue of the fact that the pcre libraries in Debian unstable are
currently at version 4.3. 

Dirk

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