[:digit:]

[Stephen J. Turnbull]

Stephen J. Turnbull writes:
 > Jerry James writes:
 > 
 >  > Do we not support the use of [:digit:]?
 > 
 > No, we don't.  Supporting the POSIX character classes properly in Mule
 > is nontrivial, and nobody has ever been willing to work on it.
 > 
 > You can get broken (ASCII-only) support based on a patch that was
 > submitted a couple of months ago, but if you want it in the mainline
 > it needs to support the whole Mule repertoire more or less sanely.

See issue302 "Implement POSIX character classes in regular expressions
(regexp)" in the tracker.