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Apostrophe token filter
editApostrophe token filter
editStrips all characters after an apostrophe, including the apostrophe itself.
This filter is included in Elasticsearch’s built-in Turkish language analyzer. It uses Lucene’s ApostropheFilter, which was built for the Turkish language.
Example
editThe following analyze API request demonstrates how the apostrophe token filter works.
resp = client.indices.analyze( tokenizer="standard", filter=[ "apostrophe" ], text="Istanbul'a veya Istanbul'dan", ) print(resp)
response = client.indices.analyze( body: { tokenizer: 'standard', filter: [ 'apostrophe' ], text: "Istanbul'a veya Istanbul'dan" } ) puts response
const response = await client.indices.analyze({ tokenizer: "standard", filter: ["apostrophe"], text: "Istanbul'a veya Istanbul'dan", }); console.log(response);
GET /_analyze { "tokenizer" : "standard", "filter" : ["apostrophe"], "text" : "Istanbul'a veya Istanbul'dan" }
The filter produces the following tokens:
[ Istanbul, veya, Istanbul ]
Add to an analyzer
editThe following create index API request uses the apostrophe token filter to configure a new custom analyzer.
resp = client.indices.create( index="apostrophe_example", settings={ "analysis": { "analyzer": { "standard_apostrophe": { "tokenizer": "standard", "filter": [ "apostrophe" ] } } } }, ) print(resp)
response = client.indices.create( index: 'apostrophe_example', body: { settings: { analysis: { analyzer: { standard_apostrophe: { tokenizer: 'standard', filter: [ 'apostrophe' ] } } } } } ) puts response
const response = await client.indices.create({ index: "apostrophe_example", settings: { analysis: { analyzer: { standard_apostrophe: { tokenizer: "standard", filter: ["apostrophe"], }, }, }, }, }); console.log(response);
PUT /apostrophe_example { "settings": { "analysis": { "analyzer": { "standard_apostrophe": { "tokenizer": "standard", "filter": [ "apostrophe" ] } } } } }