原英文版地址: https://www.elastic.co/guide/en/elasticsearch/reference/7.7/analysis-letter-tokenizer.html, 原文档版权归 www.elastic.co 所有
本地英文版地址: ../en/analysis-letter-tokenizer.html
本地英文版地址: ../en/analysis-letter-tokenizer.html
重要: 此版本不会发布额外的bug修复或文档更新。最新信息请参考 当前版本文档。
Letter Tokenizeredit
The letter tokenizer breaks text into terms whenever it encounters a
character which is not a letter. It does a reasonable job for most European
languages, but does a terrible job for some Asian languages, where words are
not separated by spaces.
Example outputedit
POST _analyze
{
"tokenizer": "letter",
"text": "The 2 QUICK Brown-Foxes jumped over the lazy dog's bone."
}
The above sentence would produce the following terms:
[ The, QUICK, Brown, Foxes, jumped, over, the, lazy, dog, s, bone ]
Configurationedit
The letter tokenizer is not configurable.