[[analysis-lowercase-tokenfilter]]
=== Lowercase Token Filter

A token filter of type `lowercase` that normalizes token text to lower
case.

Lowercase token filter supports Greek and Turkish lowercase token
filters through the `language` parameter. Below is a usage example in a
custom analyzer

[source,js]
--------------------------------------------------
index :
    analysis :
        analyzer : 
            myAnalyzer2 :
                type : custom
                tokenizer : myTokenizer1
                filter : [myTokenFilter1, myGreekLowerCaseFilter]
                char_filter : [my_html]
        tokenizer :
            myTokenizer1 :
                type : standard
                max_token_length : 900
        filter :
            myTokenFilter1 :
                type : stop
                stopwords : [stop1, stop2, stop3, stop4]
            myGreekLowerCaseFilter :
                type : lowercase
                language : greek
        char_filter :
              my_html :
                type : html_strip
                escaped_tags : [xxx, yyy]
                read_ahead : 1024
--------------------------------------------------
