How to change analyzer settings

(from github.com/MajidSafari)
hi

my language is Persian how config analyzer persian

and how add list stop word ?

(from github.com/marevol)
Please see persian_analyzer in src/main/resources/fess_indices/fess.json.
If you change fess.json, fess.* index needs to be deleted before starting Fess.
For analyzer settings, see https://www.elastic.co/guide/en/elasticsearch/reference/current/analysis-analyzers.html