Ali Beyad 2120086d82 Adds pattern keyword marker filter support (#23600)
This commit adds support for the pattern keyword marker filter in
Lucene.  Previously, the keyword marker filter in Elasticsearch
supported specifying a keywords set or a path to a set of keywords.
This commit exposes the regular expression pattern based keyword marker
filter also available in Lucene, so that any token matching the pattern
specified by the `keywords_pattern` setting is excluded from being
stemmed by any stemming filters.

Closes #4877
2017-03-28 11:13:34 -04:00
..
2016-12-07 17:58:46 +01:00