[shape-map] Change wildcard from `_` to `.` (#24)

ericprud has just created a new issue for https://github.com/shexSpec/shape-map:

== Change wildcard from `_` to `.` ==
`.` is consistent with [ShExC](http://shex.io/shex-semantics/index.html#prod-shapeAtom). We could change [`triplePattern`](http://shex.io/shape-map/#prod-triplePattern) to:

[6 ] | triplePattern | ::= | '{' "FOCUS" [iri](http://shex.io/shape-map/#prod-iri) ([objectTerm](http://shex.io/shape-map/#prod-objectTerm) \| '\_' \| '.') '}'\| '{' ([subjectTerm](http://shex.io/shape-map/#prod-subjectTerm) \| '\_' \| '.') [iri](http://shex.io/shape-map/#prod-iri) "FOCUS" '}'
-- | -- | -- | --

and add a note:

> Note, the use of `_` as a wildcard is deprecated in favor of `.`. Future versions will not permit `_`.

Please view or discuss this issue at https://github.com/shexSpec/shape-map/issues/24 using your GitHub account


-- 
Sent via github-notify-ml as configured in https://github.com/w3c/github-notify-ml-config

Received on Wednesday, 23 February 2022 21:00:20 UTC