JSONのLS/PS問題

2018/07/13のJSONの日の発表資料です。

Transcript

1. JSONͷLS/PS໰୊
   @circled9
   2018-07-13
   #friday13json
   

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2. ͸͡Ίʹ
   • ͜ͷࢿྉͰ͸ECMA-262ͱECMA-404ͷؒʹ
   ͋ͬͨ࢓༷ؒͷҧ͍ͷ࿩Λ͠·͢ɻ
   

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3. Ecma International
   • ৘ใ௨৴γεςϜ෼໺ʹ͓͚Δࠃࡍతͳඪ४Խ
   ஂମ
   • ݩʑ͸European Computer Manufactures
   Associationͱ͍͏໊લͩͬͨ
   • 1994೥ʹࠃࡍతͳཱ৔Λ൓өͯ͜͠ͷ໊લʹ
   ͳͬͨ
   

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4. ECMA-262ͱECMA-404
   • ECMA-262Ͱ͸ECMAScriptͷ࢓༷ʹ͍ͭͯ
   نఆ͍ͯ͠Δɻ
   • ECMA-404Ͱ͸JSONͷ࢓༷ʹ͍ͭͯنఆ͠
   ͍ͯΔɻ
   

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5. ECMA-262, 9th
   • จࣈྻ͸ғΉͷʹ࢖͍ͬͯΔΫΥʔτͱόο
   ΫεϥογϡͱվߦจࣈҎ֎ͳΒؚΜͰΑ͍
   • վߦจࣈ͸ͷ4ͭ
   

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6. ECMA-404
   • จࣈྻ͸μϒϧΫΥʔτɺόοΫεϥο
   γϡɺ੍ޚจࣈҎ֎ͳΒԿͰ΋Α͍ɻ
   • Any code point except " or \ or control
   character
   

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7. Unicodeͷ੍ޚจࣈ
   • Unicodeͷ੍ޚจࣈʹ౰ͨΔͷ͸ҎԼͷ΋ͷ
   • U+0000 - U+001F (C0੍ޚίʔυ)
   • U+007F (DEL)
   • U+0080 - U+009F (C1੍ޚίʔυ)
   

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8. ࢓༷ؒͷᴥᴪ
   ϫΠʮLSͱPSͬͯจࣈྻʹ͍Εͯ͑͑ͷʁʯ
   ECMA-262ʮվߦจࣈ͔ͩΒΤεέʔϓͤͣʹ
   จࣈྻʹؚΊͨΒ͔͋ΜͰʯ
   ECMA-404ʮ੍ޚจࣈͰ΋ͳ͍͠จࣈྻʹؚΊ
   ͯ΋͑͑Ͱʯ
   

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10. Proposal JSON Superset
    • TC39Ͱ͜ͷ໰୊ʹ͍ͭͯͷproposalΛग़ͯ͠
    ͍Δɻ
    • PSͱLS΋จࣈྻʹؚΊΒΕΔΑ͏ʹ͠Α͏ͥ
    ͱ͍͏ఏҊɻ
    • ݱࡏstage 4ͰES2019ʹ͸ؚΊΒΕΔ༧ఆɻ
    

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11. ·ͱΊ
    • ࢓༷ͬͯΊΜͲ͍͘͞Ͱ͢Ͷ
    

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12. Appendix
    • ECMAScript
    • https://ja.wikipedia.org/wiki/ECMAScript
    • Standard ECMA-262
    • https://www.ecma-international.org/publications/standards/Ecma-262.htm
    • Standard ECMA-404
    • https://www.ecma-international.org/publications/standards/Ecma-404.htm
    • Proposal to make all JSON text valid ECMA-262
    • https://github.com/tc39/proposal-json-superset
    

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