Hello, my name is __________.

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Hello, my name is ___________.

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Hello, my name is Nova Patch

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Hello, my name is @novapatch

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Hello, my name is #MyNameIs

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Why don’t you support my name?

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1. Unintentional bugs Why don’t you support my name?

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1. Unintentional bugs 2. Uninformed decisions Why don’t you support my name?

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1. Unintentional bugs 2. Uninformed decisions 3. Oppressive “real” name policies Why don’t you support my name?

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文字化け

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Mojibake

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æ–‡å—åŒ–ã� ‘

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In memory of Nóirín Plunkett

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Source: W3C “Character encodings: Essential concepts” by Richard Ishida; © W3C

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MySQL utf8 vs. utf8mb4

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JavaScript “characters”

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“Almost all emoji —and all new ones— are encoded in Plane 1” Why support non-BMP characters? Source: ”2015 Top Ten List: Why Support Beyond-BMP Code Points?” by Dr. Ken Lunde © Adobe Systems Incorporated

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“Japan’s 2,136 Jōyō Kanji requires one Extension B ideograph” Why support non-BMP characters? Source: ”2015 Top Ten List: Why Support Beyond-BMP Code Points?” by Dr. Ken Lunde © Adobe Systems Incorporated

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“JIS X 0213:2004 requires 303 Extension B ideographs” Why support non-BMP characters? Source: ”2015 Top Ten List: Why Support Beyond-BMP Code Points?” by Dr. Ken Lunde © Adobe Systems Incorporated

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Why support non-BMP characters?

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“GB 18030 certification without PUA requires six Extension B ideographs” Why support non-BMP characters? Source: ”2015 Top Ten List: Why Support Beyond-BMP Code Points?” by Dr. Ken Lunde © Adobe Systems Incorporated

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“China’s 8,105 hànzì set requires 196 Extension B through E ideographs” Why support non-BMP characters? Source: ”2015 Top Ten List: Why Support Beyond-BMP Code Points?” by Dr. Ken Lunde © Adobe Systems Incorporated

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“Hong Kong SCS-2008 requires 1,702 Extension B & C ideographs” Why support non-BMP characters? Source: ”2015 Top Ten List: Why Support Beyond-BMP Code Points?” by Dr. Ken Lunde © Adobe Systems Incorporated

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“Modern OSes and applications support code points outside the BMP” Why support non-BMP characters? Source: ”2015 Top Ten List: Why Support Beyond-BMP Code Points?” by Dr. Ken Lunde © Adobe Systems Incorporated

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“As of Unicode Version 6.0, there are more characters outside the BMP” Why support non-BMP characters? Source: ”2015 Top Ten List: Why Support Beyond-BMP Code Points?” by Dr. Ken Lunde © Adobe Systems Incorporated

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“The BMP is effectively full” Why support non-BMP characters? Source: ”2015 Top Ten List: Why Support Beyond-BMP Code Points?” by Dr. Ken Lunde © Adobe Systems Incorporated

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李炘煜

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李▯煜

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李炘煜 U+674E U+7098 U+715C

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O'Reilly

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OReilly

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1. Identifier characters 2. Case folding 3. Normalization 4. Confusable characters 5. Mixed scripts Unicode Usernames

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1. UTS #31: Unicode Identifier and Pattern Syntax 2. UTR #36: Unicode Security Considerations 3. UTS #39: Unicode Security Mechanisms 4. RFC 7613: Preparation, Enforcement, and Comparison of Internationalized Strings Representing Usernames and Passwords Unicode Usernames