maomao905 commented on issue #11976: URL: https://github.com/apache/lucene/issues/11976#issuecomment-1327966458
Ok, I tried to use tokenfilter instead. The compatibility character (`㋀`) is not tokenized in `icu_tokenizer` and excluded from the result. It seems that the compatibility characters need to be normalized before tokening texts. <details> <summary>Elasticsearch request</summary> <div> ```sh $ curl "http://${ES_URL}/_analyze?pretty" \ -H 'Content-Type: application/json' \ -d '{"tokenizer" : "icu_tokenizer", "char_filter" : [], "filter": ["icu_normalizer"], "text" : "日日㋀日", "explain": true}' { "detail" : { "custom_analyzer" : true, "charfilters" : [ ], "tokenizer" : { "name" : "icu_tokenizer", "tokens" : [ { "token" : "日", "start_offset" : 0, "end_offset" : 1, "type" : "<IDEOGRAPHIC>", "position" : 0, "bytes" : "[e6 97 a5]", "positionLength" : 1, "script" : "Chinese/Japanese", "termFrequency" : 1 }, { "token" : "日", "start_offset" : 1, "end_offset" : 2, "type" : "<IDEOGRAPHIC>", "position" : 1, "bytes" : "[e6 97 a5]", "positionLength" : 1, "script" : "Chinese/Japanese", "termFrequency" : 1 }, { "token" : "日", "start_offset" : 3, "end_offset" : 4, "type" : "<IDEOGRAPHIC>", "position" : 2, "bytes" : "[e6 97 a5]", "positionLength" : 1, "script" : "Chinese/Japanese", "termFrequency" : 1 } ] }, "tokenfilters" : [ { "name" : "icu_normalizer", "tokens" : [ { "token" : "日", "start_offset" : 0, "end_offset" : 1, "type" : "<IDEOGRAPHIC>", "position" : 0, "bytes" : "[e6 97 a5]", "positionLength" : 1, "script" : "Chinese/Japanese", "termFrequency" : 1 }, { "token" : "日", "start_offset" : 1, "end_offset" : 2, "type" : "<IDEOGRAPHIC>", "position" : 1, "bytes" : "[e6 97 a5]", "positionLength" : 1, "script" : "Chinese/Japanese", "termFrequency" : 1 }, { "token" : "日", "start_offset" : 3, "end_offset" : 4, "type" : "<IDEOGRAPHIC>", "position" : 2, "bytes" : "[e6 97 a5]", "positionLength" : 1, "script" : "Chinese/Japanese", "termFrequency" : 1 } ] } ] } } ``` </div> </details> -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org For additional commands, e-mail: issues-h...@lucene.apache.org