7.7.2.1. NormalizerAuto¶
7.7.2.1.1. Summary¶
Normally you should use NormalizerAuto
normalizer. NormalizerAuto was the normalizer for Groonga 2.0.9 or
earlier. KEY_NORMALIZE flag in table_create on Groonga 2.0.9
or earlier equals to --normalizer NormalizerAuto option in
table_create on Groonga 2.1.0 or later.
NormalizerAuto supports all encoding. It uses Unicode NFKC
(Normalization Form Compatibility Composition) for UTF-8 encoding
text. It uses encoding specific original normalization for other
encodings. The results of those original normalization are similar to
NFKC.
7.7.2.1.2. Syntax¶
NormalizerAuto hasn’t parameter:
NormalizerAuto
7.7.2.1.3. Usage¶
NormalizerAuto normalizes half-width katakana (such as U+FF76 HALFWIDTH KATAKANA
LETTER KA) + half-width katakana voiced sound mark (U+FF9E HALFWIDTH
KATAKANA VOICED SOUND MARK) to full-width katakana with
voiced sound mark (U+30AC KATAKANA LETTER GA). The former is two
characters but the latter is one character.
Here is an example that uses NormalizerAuto normalizer:
Execution example:
table_create NormalLexicon TABLE_HASH_KEY ShortText --normalizer NormalizerAuto
# [[0, 1337566253.89858, 0.000355720520019531], true]