Standard tokenizer
The standard
tokenizer provides grammar based tokenization (based on the Unicode Text Segmentation algorithm, as specified in Unicode Standard Annex #29) and works well for most languages.
POST _analyze
{ "tokenizer": "standard", "text": "The 2 QUICK Brown-Foxes jumped over the lazy dog's bone." }
The above sentence would produce the following terms:
[ The, 2, QUICK, Brown, Foxes, jumped, over, the, lazy, dog's, bone ]
The standard
tokenizer accepts the following parameters:
max_token_length
- The maximum token length. If a token is seen that exceeds this length then it is split at
max_token_length
intervals. Defaults to255
.
In this example, we configure the standard
tokenizer to have a max_token_length
of 5 (for demonstration purposes):
PUT my-index-000001
{ "settings": { "analysis": { "analyzer": { "my_analyzer": { "tokenizer": "my_tokenizer" } }, "tokenizer": { "my_tokenizer": { "type": "standard", "max_token_length": 5 } } } } } POST my-index-000001/_analyze { "analyzer": "my_analyzer", "text": "The 2 QUICK Brown-Foxes jumped over the lazy dog's bone." }
The above example produces the following terms:
[ The, 2, QUICK, Brown, Foxes, jumpe, d, over, the, lazy, dog's, bone ]