elasticsearch-js/docs/reference/api/AnalysisPatternAnalyzer.md

Interface AnalysisPatternAnalyzer

Name	Type	Description
flags	string	Java regular expression flags. Flags should be pipe-separated, eg "CASE_INSENSITIVE
lowercase	boolean	Should terms be lowercased or not. Defaults to true.
pattern	string	A Java regular expression. Defaults to \W+.
stopwords_path	string	The path to a file containing stop words.
stopwords	AnalysisStopWords	A pre-defined stop words list like _english_ or an array containing a list of stop words. Defaults to _none_.
type	'pattern'
version	VersionString