An open discussion list for topics related to the eduGAIN interfederation service.

[Peter Schober <peter.schober AT univie.ac.at>]

* 振溶[Jinyong Jo] <jinyong.jo AT gmail.com> [2019-03-11 08:58]:
>  - I am not sure about if it is recommendable to use the regular expression
> in the scope. We, KAFE do not allow the regular expression and thus it
> possibly makes interoperability issues.
> I would like to hear what other federations think about using the regular
> expression.

1. Just Say No to regexes in Scopes. (I dont register those here, but
   I don't filter them out from when importing from the MDS.)

2. If avoiding regexes hurts too much, community consensus has been
   condensed into the REFEDS MRPS Template document which the
   candicate federation seems to have followed already.
   https://github.com/REFEDS/MRPS/blob/master/mrps.md#53-scope-format

The usual issues with regexes are:

* hard to get right / make secure
* interoperability/portability

The limited regex support in the MRPS template hopefully avoids both
problems -- if you must use regexes in scopes (i.e., when the
alternatives would be worse).

Cheers,
-peter