Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Ruby_through_Reserved_Words.pdf

Avatar for Yukihiro Matsumoto Yukihiro Matsumoto
July 02, 2019
Programming
160
0

 Ruby_through_Reserved_Words.pdf

Avatar for Yukihiro Matsumoto

Yukihiro Matsumoto

July 02, 2019

More Decks by Yukihiro Matsumoto

See All by Yukihiro Matsumoto
30 Years of Ruby
Avatar for Yukihiro Matsumoto matz
0
520
mruby VM
Avatar for Yukihiro Matsumoto matz
0
110
Contribute to Ruby (RubyKaigi 2022)
Avatar for Yukihiro Matsumoto matz
0
290
Ruby after 25 years
Avatar for Yukihiro Matsumoto matz
1
1.5k
What is software made of?
Avatar for Yukihiro Matsumoto matz
0
710
Streem
Avatar for Yukihiro Matsumoto matz
8
3.8k
world-of-languages.pdf
Avatar for Yukihiro Matsumoto matz
8
1.3k
Ruby Everywhere
Avatar for Yukihiro Matsumoto matz
11
120k

Other Decks in Programming

See All in Programming
20260722_microCMSで考える、AI時代のコンテンツ運用設計
Avatar for Yoshihisa Kaino yosh1
0
130
【やさしく解説 設計編・中級 #4】ルールの寿命と、システムの年輪
Avatar for HideyukiKitao panda728
PRO
2
170
【SRE NEXT 2026 Lunch Session】一人目専任SREの立ち上げを加速する ― AIと進めたオンボーディングで2分を0.04秒にした話
Avatar for PKSHA Technology（パークシャテクノロジー） pkshadeck
PRO
0
3.2k
ソフトウェア設計に溶けるインフラ ― AWS CDK のインフラ認識論
Avatar for Kenji Kono konokenj
3
670
AI時代のPHPer生存戦略 ～「言語、もうなんでもよくない？」に本気で向き合う～
Avatar for viviON vivion
0
190
複数の Claude Code が"放置"されてしまう問題をCLI ダッシュボードを自作して解決した話
Avatar for sumihiro3 sumihiro3
0
340
<title><a id="</title>君はこのHTMLをパースできるか"></a></title> #雑LT_study
Avatar for pizzacat83 pizzacat83
0
110
Android CLI
Avatar for Sungyong An fornewid
0
190
What's New in Android 2026
Avatar for Veronikapj veronikapj
0
230
PHP に部分適用が来るぞ！……ところで何それ？おいしいの？ #phpcon / phpcon-2026
Avatar for shogogg shogogg
0
400
今さら聞けない .NET CLI
Avatar for tkym htkym
0
140
ビデオ通話が繋がる0.2秒で何が起きているのか
Avatar for Miyamoto Naoyuki supurazako
2
150

Featured

See All Featured
How GitHub (no longer) Works
Avatar for Zach Holman holman
316
150k
Ethics towards AI in product and experience design
Avatar for Skipper Chong Warson skipperchong
2
330
Pawsitive SEO: Lessons from My Dog (and Many Mistakes) on Thriving as a Consultant in the Age of AI
Avatar for David Carrasco davidcarrasco
0
200
End of SEO as We Know It (SMX Advanced Version)
Avatar for Michael King ipullrank
3
4.3k
The Organizational Zoo: Understanding Human Behavior Agility Through Metaphoric Constructive Conversations (based on the works of Arthur Shelley, Ph.D)
Avatar for Dr. Kim W Petersen kimpetersen
PRO
0
390
Stewardship and Sustainability of Urban and Community Forests
Avatar for Eric Wiseman pwiseman
0
390
コードの90%をAIが書く世界で何が待っているのか / What awaits us in a world where 90% of the code is written by AI
Avatar for r-kagaya rkaga
62
45k
XXLCSS - How to scale CSS and keep your sanity
Avatar for Zaharenia Atzitzikaki sugarenia
249
1.3M
Data-driven link building: lessons from a $708K investment (BrightonSEO talk)
Avatar for Szymon Słowik szymonslowik
1
1.2k
10 Git Anti Patterns You Should be Aware of
Avatar for Lemi Orhan Ergin lemiorhan
PRO
659
62k
Why Your Marketing Sucks and What You Can Do About It - Sophie Logan
Avatar for Sophie Logan marketingsoph
0
320
The SEO Collaboration Effect
Avatar for Kristina Bergwall kristinabergwall1
1
510

Transcript

  1. Powered by Rabbit 2.2.1 Ruby through Reserved Words Heroku Ruby

    Association Yukihiro "Matz" Matsumoto まつもとゆきひろ @yukihiro_matz

  2. Powered by Rabbit 2.2.1 　 Ruby has 41 reserved words

  3. Powered by Rabbit 2.2.1 　 Each reflects (early) design decisions

  4. Powered by Rabbit 2.2.1 　 The story behinds the words

  5. Powered by Rabbit 2.2.1 　 begin/end

  6. Powered by Rabbit 2.2.1 　 Comb Style Indentation

  7. Powered by Rabbit 2.2.1 　 Inherited from Eiffel

  8. Powered by Rabbit 2.2.1 　 along with rescue, ensure, retry

  9. Powered by Rabbit 2.2.1 　 break/next/redo

  10. Powered by Rabbit 2.2.1 　 not continue

  11. Powered by Rabbit 2.2.1 　 From Perl (shorter)

  12. Powered by Rabbit 2.2.1 　 class/def

  13. Powered by Rabbit 2.2.1 　 From Python

  14. Powered by Rabbit 2.2.1 　 module

  15. Powered by Rabbit 2.2.1 　 Lisp (Flavors)

  16. Powered by Rabbit 2.2.1 　 Mix-in

  17. Powered by Rabbit 2.2.1 　 if/else/elsif

  18. Powered by Rabbit 2.2.1 　 elsif

  19. Powered by Rabbit 2.2.1 　 elseif, elif, elsif

  20. Powered by Rabbit 2.2.1 　 The shortest pronounceable

  21. Powered by Rabbit 2.2.1 　 then

  22. Powered by Rabbit 2.2.1 　 The stop words

  23. Powered by Rabbit 2.2.1 　 then and class methods

  24. Powered by Rabbit 2.2.1 　 unless

  25. Powered by Rabbit 2.2.1 　 From Perl

  26. Powered by Rabbit 2.2.1 　 No elsif or elsunless

  27. Powered by Rabbit 2.2.1 　 while

  28. Powered by Rabbit 2.2.1 　 Simple loop

  29. Powered by Rabbit 2.2.1 　 for/in

  30. Powered by Rabbit 2.2.1 　 From Python?

  31. Powered by Rabbit 2.2.1 　 until

  32. Powered by Rabbit 2.2.1 　 From Perl

  33. Powered by Rabbit 2.2.1 　 true/false/nil

  34. Powered by Rabbit 2.2.1 　 Truthy and Falsy

  35. Powered by Rabbit 2.2.1 　 Three value model

  36. Powered by Rabbit 2.2.1 　 Inspired by Lisp

  37. Powered by Rabbit 2.2.1 　 and/or/not

  38. Powered by Rabbit 2.2.1 　 From Perl

  39. Powered by Rabbit 2.2.1 　 Only for precedence

  40. Powered by Rabbit 2.2.1 　 do/yield

  41. Powered by Rabbit 2.2.1 　 The block

  42. Powered by Rabbit 2.2.1 　 From CLU (1970s, MIT)

  43. Powered by Rabbit 2.2.1 　 The biggest invention of Ruby

  44. Powered by Rabbit 2.2.1 　 rescue/ensure/retry

  45. Powered by Rabbit 2.2.1 　 Exception handling

  46. Powered by Rabbit 2.2.1 　 Inspired by Eiffel

  47. Powered by Rabbit 2.2.1 　 Icon (1970s, U of Arizona)

  48. Powered by Rabbit 2.2.1 　 Success/Failure model

  49. Powered by Rabbit 2.2.1 　 return

  50. Powered by Rabbit 2.2.1 　 From C

  51. Powered by Rabbit 2.2.1 　 Multiple values (Tuple)

  52. Powered by Rabbit 2.2.1 　 self/super

  53. Powered by Rabbit 2.2.1 　 Smalltalk

  54. Powered by Rabbit 2.2.1 　 alias/undef

  55. Powered by Rabbit 2.2.1 　 From Sather (1980s, UCB)

  56. Powered by Rabbit 2.2.1 　 BEGIN/END

  57. Powered by Rabbit 2.2.1 　 From Awk

  58. Powered by Rabbit 2.2.1 　 Not recommendation anymore

  59. Powered by Rabbit 2.2.1 　 __FILE__/__LINE__

  60. Powered by Rabbit 2.2.1 　 From C (cpp)

  61. Powered by Rabbit 2.2.1 　 __ENCODING__

  62. Powered by Rabbit 2.2.1 　 From Ruby1.9 (encoding)

  63. Powered by Rabbit 2.2.1 　 UCS vs CSI

  64. Powered by Rabbit 2.2.1 　 Unicode

  65. Powered by Rabbit 2.2.1 　 BDFL

  66. Powered by Rabbit 2.2.1 　 Benevolent Dictator For Life

  67. Powered by Rabbit 2.2.1 　 How to make decisions

  68. Powered by Rabbit 2.2.1 　 Scope Background Motivation

  69. Powered by Rabbit 2.2.1 　 Committee

  70. Powered by Rabbit 2.2.1 　 Voting

  71. Powered by Rabbit 2.2.1 　 A ship would climb a

    mountain with many captains

  72. Powered by Rabbit 2.2.1 　 too many cooks spoil the

    broth