I forgot to mention the more obvious ;) - yes, it is a known issue in PCRE 8.13
which is hitting more people.
After re-reading the standard I think the problem was that PCRE did not require
enclosing [ to treat [. as special. This has been addressed in the PCRE trunk
since and it also has a com
Mark, quick googling gives the answer - [.] is not what you think it is, you
probably meant [\.]. Bracket expressions starting with [. are collating symbols
which is unsupported by PCRE (only [:xxx:] is supported, neither [=xxx=] nor
[.xxx.] is) but that's probably not what you intended. See POS
Problem below with PCRE grep in R-devel; works fine in R-patched. (Unless
there's been an absolutely massive change in rules for updated PCRE version
8.13; jeez I hope not)
> grep( '[.][.]', '', perl=TRUE)
Error in grep("[.][.]", "", perl = TRUE) :
invalid regular expression '[.][.]'
In additi
