Regexp Operator Support

[paulo-serrao]

Any plans to add support for the regexp search operator ("/")?

Example from ElasticSearch documentation:
name: /joh?n(ath[oa]n)/

https://www.elastic.co/guide/en/elasticsearch/reference/6.4/query-dsl-query-string-query.html#_regular_expressions

[alexgarel]

Yes, this is in the todo list.

PR with tests are always welcome ;-)

But I may get a look on this in september/october.

[alexgarel]

#52 add it in the parsing tree.

What remains to do is adding support in the query transformer to ES.