[Rd] Problem with a regular expression.

[Chris Triggs]

Hi...

I have come upon a problem with a regular expression which causes base-R to freeze.  I have reproduced the phenomenon on several machines running R under Windows 10, and also under OSX  on different Apple MACs.

The minimal example is:-
Oldterm is a vector of characters, e.g. "A", "B", "A", "*", "B"
The regular expression is "\\\\)"

The call which freezes R is
strsplit(Oldterm, "\\\\)" )

Thomas - after he had reproduced the problem - suggested that I submit it to r-devel.

Best wishes....
           Chris Triggs


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