Last Updated
：2025/12/06
high surrogate
Noun
Japanese Meaning
UTF-16エンコーディングにおいて、補助文字（U+10000以上）の20ビット表現の上位10ビットを符号化するために使用されるコードポイント（U+D800〜U+DBFFの範囲）を指す。 / Unicodeで定義された高サロゲート（High Surrogates）領域に属するコードポイント。
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(computing, Unicode) A code point in the range U+D800 through U+DBFF (the High Surrogates and High Private Use Surrogates blocks), used in UTF-16 to encode the high 10 bits of the 20-bit offset above U+FFFF of the code point belonging to a supplementary character.
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high surrogate
When decoding UTF-16, the parser must check that a high surrogate is followed by a low surrogate before combining them into a single code point.
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When decoding UTF-16, the parser must check that a high surrogate is followed by a low surrogate before combining them into a single code point.
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