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What is the difference is between W3C normalization and Unicode normalization?

April 26, 2017difference Normalization Unicode W3C

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What is the difference is between W3C normalization and Unicode normalization?

2 Answers

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Unicode normalization comes in 4 flavors: C, D, KC, KD. It is C that is relevant for W3C normalization. W3C normalization also treats character references (&#nnnn;) as equivalent to characters. For example, the text string “a&#xnnnn;” (where nnnn = “0301”) is Unicode-normalized since it consists only of ASCII characters, but it is not W3C-normalized, since it contains a representation of a combining acute accent with “a”, and in normalization form C, that should have been normalized to U+00E1.

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Unicode normalization comes in 4 flavors: C, D, KC, KD. It is C that is relevant for W3C normalization. W3C normalization also treats character references (&#nnnn;) as equivalent to characters.