PHP classes to provide Unicode Normalization.
Performs the 4 normalizations:
NFD: Canonical Decomposition
NFC: Canonical Decomposition, followed by Canonical Composition
NFKD: Compatibility Decomposition
NFKC: Compatibility Decomposition, followed by Canonical Composition
Complies with the official Unicode.org regression test. Uses UTF8 binary
strings natively but can normalize a string in any UTF format. Fully tested
with phpUnit. Code coverage test close to 100%.