On Dec 4, 2005, at 5:27 PM, Jeff DuMonthier wrote:

...|([0-9]*)\'b[0-1zZ\?]*)|...

When I hit the test button it highlights everything from the b on.

If this is really what you have typed in, then you are missing an opening parenthesis. The parenthesis at the end doesn't seem to have been opened.

Haris