Remove AS::Mb::Unicode::UnicodeDatabase

Transcript

1. @mtsmfm ActiveSupport::Multibyte:: Unicode::UnicodeDatabase を消したかった

2. Fumiaki MATSUSHIMA GitHub, Twitter @mtsmfm Web Developer

3. https://www.quipper.com/

4. https://ninirb.github.io

5. https://www.meetup.com/ja-JP/GraphQL-Tokyo/

6. http://rubykaigi.org/2017/speakers

7. http://contributors.rubyonrails.org/

8. Rails で 一番大きいファイル 知ってますか?

9. $ find vendor/bundle/gems/acti* -type f -exec du -h -a {}

   + | sort -h -r | head -n 10 1.1M vendor/bundle/gems/activesupport-5.1.2/lib/active_support/values/unicode_tables.dat 104K vendor/bundle/gems/actionview-5.1.2/lib/action_view/helpers/form_helper.rb 100K vendor/bundle/gems/activerecord-5.1.2/lib/active_record/associations.rb 76K vendor/bundle/gems/actionpack-5.1.2/lib/action_dispatch/routing/mapper.rb 60K vendor/bundle/gems/actionview-5.1.2/lib/action_view/helpers/date_helper.rb 52K vendor/bundle/gems/activerecord-5.1.2/lib/active_record/connection_adapters/abstract/schema_statements.rb 44K vendor/bundle/gems/activerecord-5.1.2/lib/active_record/migration.rb 44K vendor/bundle/gems/actionview-5.1.2/lib/action_view/helpers/form_tag_helper.rb 44K vendor/bundle/gems/actionview-5.1.2/lib/action_view/helpers/form_options_helper.rb 40K vendor/bundle/gems/activerecord-5.1.2/lib/active_record/relation/query_methods.rb

10. $ find vendor/bundle/gems/acti* -type f -exec du -h -a {}

    + | sort -h -r | head -n 10 1.1M vendor/bundle/gems/activesupport-5.1.2/lib/active_support/values/unicode_tables.dat 104K vendor/bundle/gems/actionview-5.1.2/lib/action_view/helpers/form_helper.rb 100K vendor/bundle/gems/activerecord-5.1.2/lib/active_record/associations.rb 76K vendor/bundle/gems/actionpack-5.1.2/lib/action_dispatch/routing/mapper.rb 60K vendor/bundle/gems/actionview-5.1.2/lib/action_view/helpers/date_helper.rb 52K vendor/bundle/gems/activerecord-5.1.2/lib/active_record/connection_adapters/abstract/schema_statements.rb 44K vendor/bundle/gems/activerecord-5.1.2/lib/active_record/migration.rb 44K vendor/bundle/gems/actionview-5.1.2/lib/action_view/helpers/form_tag_helper.rb 44K vendor/bundle/gems/actionview-5.1.2/lib/action_view/helpers/form_options_helper.rb 40K vendor/bundle/gems/activerecord-5.1.2/lib/active_record/relation/query_methods.rb 1.1M!

11. active_support/values/unicode_tables.dat

12. https://github.com/rails/rails/blob/16f2b2044eaaa54b7bc205ef9af1689a152b2fdf/actives upport/lib/active_support/multibyte/unicode.rb

13. Rails で 一番大きいファイル ↓ ActiveSupport::Multibyte:: Unicode::UnicodeDatabase の dat ファイル

14. https://github.com/rails/rails/pull/26743

15. @mtsmfm ActiveSupport::Multibyte:: Unicode::UnicodeDatabase を消したかった

16. http://agile.esm.co.jp/news/2016-04-08-rails-study-session.html

17. 社内 Rails 勉強会 ↓ OSS パッチ会

18. https://speakerdeck.com/a_matsuda/3x-rails

19. https://speakerdeck.com/a_matsuda/3x-rails?slide=156

20. https://speakerdeck.com/a_matsuda/3x-rails?slide=156

21. https://speakerdeck.com/a_matsuda/3x-rails?slide=156

22. None
23. None

24. AS::Mb::Unicode そもそも何ができる?

25. None

26. PR 出したタイミングの Rails v5.0.0.1 の コードベースで話をします (今も大差ないけれど) 当時は Ruby 2.4

    が出る ちょっと前でした

27. - Normalize - Case mapping - Pack/unpack grapheme - Tidy

    bytes

28. - Normalize - Case mapping - Pack/unpack grapheme - Tidy

    bytes AS::Mb::Unicode::UnicodeDatabase 使ってない

29. - Normalize - Case mapping - Pack/unpack grapheme

30. Unicode Normalize とは

31. Decompose ‘が’ [‘か’, ‘゛’] Compose [‘か’, ‘゛’] ‘が’

32. Normalize 関連のメソッド - AS::Mb::Unicode#normalize - AS::Mb::Unicode#decompose - AS::Mb::Unicode#compose - AS::Mb::Unicode#reorder_characters

33. Unicode 正規化 - NFD - NFC - NFKD - NFKC

    Normalization Form Decopose Compose

34. Unicode 正規化 - NFD - NFC - NFKD - NFKC

    Normalization Form Decopose Compose

35. Unicode 正規化 - NFD - NFC - NFKD - NFKC

    Normalization Form Decopose Compose

36. “In NFKC and NFKD, a K is used to stand

    for compatibility to avoid confusion with the C standing for composition.” http://unicode.org/reports/tr15/

37. Unicode 正規化 - NFD - NFC - NFKD - NFKC

    Normalization Form Decopose Compose K(C)ompatibility (互換等価)

38. Unicode 正規化の等価性 - 正準等価 (Kじゃない方) - 戻れる - 互換等価 (Kの方)

    - 緩め。戻れない

39. ㈱

40. 正準等価 ‘㈱’ != [‘(’ , ‘株’, ‘)’] 互換等価 ‘㈱’ ==

    [‘(’, ‘株’, ‘)’]

41. Normalize 関連のメソッド - AS::Mb::Unicode#normalize - AS::Mb::Unicode#decompose - AS::Mb::Unicode#compose - AS::Mb::Unicode#reorder_characters

42. https://github.com/rails/rails/blob/v5.0.0.1/activesupport/lib/active_ support/multibyte/unicode.rb#L285-L301

43. https://github.com/rails/rails/blob/v5.0.0.1/activesupport/lib/active_ support/multibyte/unicode.rb#L159-L177

44. https://github.com/rails/rails/blob/v5.0.0.1/activesupport/lib/active_ support/multibyte/unicode.rb#L180-L236

45. https://github.com/rails/rails/blob/v5.0.0.1/activesupport/lib/active_ support/multibyte/unicode.rb#L143-L136

46. Normalize 関連のメソッド - AS::Mb::Unicode#normalize - AS::Mb::Unicode#decompose - AS::Mb::Unicode#compose - AS::Mb::Unicode#reorder_characters

    #normalize で使うための ヘルパメソッド (なぜ public なのか...)

47. Normalize 関連のメソッド - AS::Mb::Unicode#normalize - AS::Mb::Unicode#decompose - AS::Mb::Unicode#compose - AS::Mb::Unicode#reorder_characters

48. Ruby 本体は?

49. https://docs.ruby-lang.org/ja/search/

50. https://docs.ruby-lang.org/ja/search/query:unicode/query:normalize/

51. あった!

52. String#unicode_normalize [1] pry(main)> '株'.codepoints => [26666] [2] pry(main)> '㈱'.codepoints =>

    [12849] [3] pry(main)> '㈱'.unicode_normalize(:nfc).codepoints => [12849] [4] pry(main)> '㈱'.unicode_normalize(:nfd).codepoints => [12849] [5] pry(main)> '㈱'.unicode_normalize(:nfkc).codepoints => [40, 26666, 41] [6] pry(main)> '㈱'.unicode_normalize(:nfkd).codepoints => [40, 26666, 41]

53. https://github.com/rails/rails/pull/26743/files?diff=split

54. https://github.com/rails/rails/pull/26743/files?diff=split

55. https://github.com/rails/rails/pull/26743/files?diff=split

56. Ruby 便利!

57. - Normalize - Case mapping - Pack/unpack grapheme ✔

58. ‘A’ ‘a’

59. ‘A’ ‘a’ ‘Ä’ ‘ä’

60. Case mapping 関連のメソッド - AS::Mb::Unicode#downcase - AS::Mb::Unicode#upcase - AS::Mb::Unicode#swapcase

61. https://github.com/rails/rails/blob/v5.0.0.1/activesupport/lib/active_ support/multibyte/unicode.rb#L303-L313

62. https://github.com/rails/rails/blob/v5.0.0.1/activesupport/lib/active_ support/multibyte/unicode.rb#L392-L402

63. Ruby 本体は?

64. http://rubykaigi.org/2016/presentations/duerst.html

65. https://www.ruby-lang.org/en/news/2016/09/08/ruby-2-4-0-preview 2-released/

66. $ docker run -e LANG=C.UTF-8 --rm ruby:2.3 \ ruby -e

    "p 'Ä'.downcase == 'ä'" false $ docker run -e LANG=C.UTF-8 --rm ruby:2.4 \ ruby -e "p 'Ä'.downcase == 'ä'" true

67. https://github.com/rails/rails/pull/26743/files?diff=split

68. Ruby 便利!!

69. https://www.sw.it.aoyama.ac.jp/2016/pub/RubyKaigi/

70. https://bugs.ruby-lang.org/issues/10084

71. - Normalize - Case mapping - Pack/unpack grapheme ✔ ✔

72. Grapheme とは

73. Grapheme (書記素) ≒ 文字の単位 あ が ゛

74. ぎんざ

75. [‘き’, ‘゛’, ‘ん’, ‘ざ’]

76. 文字区切り [[‘き’], [‘゛’], [‘ん’], [‘ざ’]] 書記素区切り [[‘き’, ’゛’], [‘ん’], [‘ざ’]]

77. Pack/unpack grapheme 関連のメソッド - AS::Mb::Unicode#pack_graphemes - AS::Mb::Unicode#unpack_graphemes

78. https://github.com/rails/rails/blob/v5.0.0.1/activesupport/lib/active_ support/multibyte/unicode.rb#L138-L140

79. https://github.com/rails/rails/blob/v5.0.0.1/activesupport/lib/active_ support/multibyte/unicode.rb#L80-L133

80. Ruby 本体は?

81. https://docs.ruby-lang.org/ja/search/

82. https://docs.ruby-lang.org/ja/search/query:grapheme

83. /\X/

84. https://github.com/rails/rails/pull/26743/files

85. https://github.com/rails/rails/pull/26743/files

86. Ruby 本体の機能便利!!!

87. と思いきや テストが通らない

88. None

89. https://github.com/k-takata/Onigmo/issues/46

90. https://bugs.ruby-lang.org/issues/12831

91. https://bugs.ruby-lang.org/issues/12831

92. 2.4 で入った

93. https://github.com/rails/rails/pull/26743/files

94. - Normalize - Case mapping - Pack/unpack grapheme ✔ ✔

    ✔
95. None

96. https://github.com/rails/rails/pull/26743

97. なぜマージできないか

98. Rails 5 は Ruby 2.2.2 以降を サポート

99. - Normalize - Ruby 2.2 から - Case mapping -

    Ruby 2.4 から - Pack/unpack grapheme - Ruby 2.0 から - ただし、Unicode のテストが 通るのは 2.4 から

100. 入るとしたら Ruby のバージョンが 上がるとき ≒ Rails 6 ?

101. Rails を待たなくても 手元の開発では 使える

102. それ、 Ruby 本体で できるかも

103. まとめ - Rails 6 になると UnicodeDatabase が 消せて、3x Rails に近づくかも

     - 多数の人の力により、gem でやっていた ことが Ruby 本体でできるようになって いっている

104. Credits Background pattern from subtlepatterns.com Emoji artwork provided by Emoji

     One