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Elastic Docs ›Elasticsearch Guide [2.2] ›Analysis ›Token Filters

Keyword Marker Token Filter

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Keyword Marker Token Filter

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Protects words from being modified by stemmers. Must be placed before any stemming filters.

Setting Description

keywords

A list of words to use.

keywords_path

A path (either relative to config location, or absolute) to a list of words.

ignore_case

Set to true to lower case all words first. Defaults to false.

Here is an example:

index :
    analysis :
        analyzer :
            myAnalyzer :
                type : custom
                tokenizer : standard
                filter : [lowercase, protwords, porter_stem]
        filter :
            protwords :
                type : keyword_marker
                keywords_path : analysis/protwords.txt
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