[Boost-users] Determining offset of regex syntax errors

From: Keith MacDonald (boost_at_[hidden])
Date: 2004-02-18 12:47:45

Members of class reg_expression know where they are up to while compiling,
but don't include that information when they throw.  It can be pretty
daunting to get the "Invalid regular expression" error message, with no
indication of where to start looking, so I'd like to be more helpful.  Given
the character offset from the start of the RE, I can put the cursor there.
Any suggestions as to how to obtain that information?

Thanks,
Keith MacDonald