原文地址: https://www.elastic.co/guide/en/elasticsearch/reference/7.7/analysis-apostrophe-tokenfilter.html, 原文档版权归 www.elastic.co 所有
IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Apostrophe token filteredit
Strips 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.
Exampleedit
The following analyze API request demonstrates how the apostrophe token filter works.
GET /_analyze
{
"tokenizer" : "standard",
"filter" : ["apostrophe"],
"text" : "Istanbul'a veya Istanbul'dan"
}
The filter produces the following tokens:
[ Istanbul, veya, Istanbul ]
Add to an analyzeredit
The following create index API request uses the apostrophe token filter to configure a new custom analyzer.
PUT /apostrophe_example
{
"settings" : {
"analysis" : {
"analyzer" : {
"standard_apostrophe" : {
"tokenizer" : "standard",
"filter" : ["apostrophe"]
}
}
}
}
}