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Elastic Docs ›Elasticsearch Guide [8.11] ›Text analysis ›Built-in analyzer reference

Simple analyzer

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Simple analyzer

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The simple analyzer breaks text into tokens at any non-letter character, such as numbers, spaces, hyphens and apostrophes, discards non-letter characters, and changes uppercase to lowercase.

Example

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response = client.indices.analyze(
  body: {
    analyzer: 'simple',
    text: "The 2 QUICK Brown-Foxes jumped over the lazy dog's bone."
  }
)
puts response
POST _analyze
{
  "analyzer": "simple",
  "text": "The 2 QUICK Brown-Foxes jumped over the lazy dog's bone."
}

The simple analyzer parses the sentence and produces the following tokens:

[ the, quick, brown, foxes, jumped, over, the, lazy, dog, s, bone ]

Definition

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The simple analyzer is defined by one tokenizer:

Tokenizer

Customize

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To customize the simple analyzer, duplicate it to create the basis for a custom analyzer. This custom analyzer can be modified as required, usually by adding token filters.

response = client.indices.create(
  index: 'my-index-000001',
  body: {
    settings: {
      analysis: {
        analyzer: {
          my_custom_simple_analyzer: {
            tokenizer: 'lowercase',
            filter: []
          }
        }
      }
    }
  }
)
puts response
PUT /my-index-000001
{
  "settings": {
    "analysis": {
      "analyzer": {
        "my_custom_simple_analyzer": {
          "tokenizer": "lowercase",
          "filter": [                          
          ]
        }
      }
    }
  }
}

Add token filters here.
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