&reftitle.constants;

The following constants define the normalization form used by the normalizer:

`Normalizer::FORM_C`

- Normalization Form C (NFC) - Canonical Decomposition followed by Canonical Composition

`Normalizer::FORM_D`

- Normalization Form D (NFD) - Canonical Decomposition

`Normalizer::NFD`

`Normalizer::FORM_KC`

- Normalization Form KC (NFKC) - Compatibility Decomposition, followed by Canonical Composition

`Normalizer::NFKC`

`Normalizer::FORM_KC_CF`

`Normalizer::FORM_KD`

- Normalization Form KD (NFKD) - Compatibility Decomposition

`Normalizer::NFKD`

`Normalizer::NFC`

`Normalizer::NFKC_CF`