es_conf

index:
  number_of_shards: 1
  number_of_replicas: 0  # not for production

  analysis:
    char_filter:
      ru:
        type: mapping
        mappings: ['Ё=>Е', 'ё=>е']
    analyzer:
      tag_analyzer:
        alias: [tag]
        type: custom
        tokenizer: nGram
        filter: [tag_filter, russian_morphology, english_morphology]
      default_index:
        alias: [index_ru]
        type: custom
        tokenizer: nGram
        filter: [stopwords_ru, custom_word_delimiter, lowercase, russian_morphology, english_morphology, translit]
        char_filter: [ru]
      default_search:
        alias: [search_ru]
        type: custom
        tokenizer: standard
        filter: [stopwords_ru, custom_word_delimiter, lowercase, russian_morphology,  english_morphology, translit]
        char_filter: [ru]
    tokenizer:
      nGram:
        type: nGram
        min_gram: 4
        max_gram: 20
    filter:
      translit:
        type: icu_transform
        id: Any-Latin; NFD; [:Nonspacing Mark:] Remove; NFC
      tag_filter:
        type: word_delimiter
        type_table: ['# => ALPHA', '@ => ALPHA']
      stopwords_ru:
        type: stop
        stopwords: _russian_
        ignore_case: true
      custom_word_delimiter:
        type: word_delimiter
        generate_word_parts: true
        generate_number_parts: true  # "500-42" ⇒ "500" "42"
        catenate_words: true  # "wi-fi" ⇒ "wifi"
        catenate_numbers: false  # "500-42" ⇒ "50042"
        catenate_all: true  # "wi-fi-4000" ⇒ "wifi4000"
        split_on_case_change: true  # "PowerShot" ⇒ "Power" "Shot"
        preserve_original: true  # "500-42" ⇒ "500-42" "500" "42"
        split_on_numerics: false  # "j2se" ⇒ "j" "2" "se"