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CJK Width Token Filter
editCJK Width Token Filter
editThe cjk_width token filter normalizes CJK width differences:
- Folds fullwidth ASCII variants into the equivalent basic Latin
- Folds halfwidth Katakana variants into the equivalent Kana
This token filter can be viewed as a subset of NFKC/NFKD
Unicode normalization. See the analysis-icu plugin
for full normalization support.