たのしいString

Transcript

1. ͨͷ͍͠String
   ϓϩάϥϛϯάݴޠRuby30प೥ه೦Πϕϯτ
   2023-02-25 ima1zumi
   

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2. Introduction
   - @ima1zumi (Mari Imaizumi)
   
   
   - Ӭ࿨γεςϜϚωδϝϯτॴଐ
   
   
   - IRB and Reline committer
   
   
   - จࣈͱจࣈίʔυ͕޷͖
   

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3. Powered by
   

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4. Ruby30प೥͓ΊͰͱ͏͍͟͝·͢🎉
   

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5. Rubyͷָ͍͠ͱ͜Ζ
   

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6. String &
   Encoding
   

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7. ࠓ೔͔Β࢖͑Δ
   
   
   จࣈͱจࣈίʔυૢ࡞
   
   
   3બ
   

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8. ᶃ ਺஋ɺόΠτྻ͔Βจࣈʹ௚͢
   

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9. ਺஋ɺόΠτྻ͔Βจࣈʹ௚͢
   • Integer#chr
   
   
   • Array#pack
   
   
   • String#force_encoding
   

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10. Integer#chr(encoding)
    • ίʔυϙΠϯτΛจࣈͱͯ͠ղऍ
    
    
    • Ҿ਺ͳ͠ͷ৔߹US-ASCIIɺASCII-8BITɺEncoding.default_internalͷ
    ॱͰղऍ
    

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11. Array#pack
    • ഑ྻͷ಺༰ΛҾ਺ʹैͬͯύοΫ
    
    
    • "U*" ͸Unicode codepointΛUTF-8ͱͯ͠ղऍͯ͠ฦ͢
    

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12. String#force_encoding
    • จࣈίʔυͷΈΛมߋ͠ɺόΠτྻ͸มߋ͠ͳ͍
    
    
    • ͜͜Ͱ͸όΠφϦ(ASCII_8BIT)ͷจࣈίʔυΛUTF-8ʹมߋ
    

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13. ᶄจࣈԽ͚Λ࡞Δ
    

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14. จࣈԽ͚Λ࡞Δ
    • String#force_encoding
    
    
    • String#encode
    

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15. จࣈԽ͚Λ࡞Δ
    

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16. จࣈԽ͚Λ࡞Δ
    

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17. จࣈԽ͚Λ࡞Δ
    

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18. https://github.com/integrations/slack/issues/1416
    

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19. ããã«ã¡ã¯ä¸ç
    ͜Μʹͪ͸ੈք
    

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25. ããã«ã¡ã¯ä¸ç
    ͜Μʹͪ͸ੈք
    

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26. ᶅจࣈίʔυΛRubyͰRubyʹ௥Ճ
    

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27. จࣈίʔυΛ௥Ճ͢Δ
    • Encoding#replicate
    
    
    • ஫ҙ఺͸ޙड़
    

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28. ΍Δ͜ͱ
    • 1. ࡞Γ͍ͨEncodingͷ਽ܗʹͳΔEncodingΛܾΊΔ
    
    
    • 2. Encoding#replicate͢Δ
    
    
    • 3. ม׵ϩδοΫΛॻ͘
    

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29. จࣈίʔυΛఆٛ͢Δ
    

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30. ม׵ϩδοΫΛॻ͘
    

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31. https://github.com/ima1zumi/ruby_encoding_iroha
    

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32. Remove Encoding#replicate
    Ruby 3.3
    

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35. Welcome to faster Encodings
    

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