On 4/19/19 2:39 AM, Mattias Engdegård wrote:
> This is the latest scan of errors and oddities in regexps in the Emacs source tree.
> New this time is an experimental check for branch subsumption: whether one branch in an or-expression matches a superset of another, like "[ab]\\|a". Please tell me if you believe this might be useful, so that I know whether to include it in the next release of xr.

Thanks, these all look useful to me. I installed the attached patch to
fix the glitches.