Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
the world of characters
Search
orisano
September 13, 2018
8
1.5k
the world of characters
orisano
September 13, 2018
Tweet
Share
More Decks by orisano
See All by orisano
OSS Performance Tuning Tips
orisano
8
6.1k
Docker-Compose & BuildKit
orisano
4
1k
Container Build Talk
orisano
3
2.5k
dockerignore talk
orisano
2
7.2k
Better docker image+
orisano
6
6.4k
Socket.IO Introduction
orisano
0
3.3k
Profiling Go Application
orisano
11
8k
Multi-stage Builds Patterns & Practice
orisano
6
5.2k
better docker image
orisano
22
30k
Featured
See All Featured
Leveraging Curiosity to Care for An Aging Population
cassininazir
1
160
Self-Hosted WebAssembly Runtime for Runtime-Neutral Checkpoint/Restore in Edge–Cloud Continuum
chikuwait
0
330
The Art of Delivering Value - GDevCon NA Keynote
reverentgeek
16
1.8k
The Anti-SEO Checklist Checklist. Pubcon Cyber Week
ryanjones
0
70
The Illustrated Children's Guide to Kubernetes
chrisshort
51
51k
Designing Powerful Visuals for Engaging Learning
tmiket
0
240
Product Roadmaps are Hard
iamctodd
PRO
55
12k
How STYLIGHT went responsive
nonsquared
100
6k
jQuery: Nuts, Bolts and Bling
dougneiner
65
8.4k
Practical Orchestrator
shlominoach
191
11k
What does AI have to do with Human Rights?
axbom
PRO
0
2k
The #1 spot is gone: here's how to win anyway
tamaranovitovic
2
940
Transcript
1จࣈͷੈք @orisano
Έͳ͞Μ จࣈΛ͑ΒΕ·͢ΑͶʁ
a
a => 1
͋
͋ => 1
佛
佛 => 1
None
=> 1
None
=> 1
Z͑ͫ̓ͪ̂ͫ̽ ̴̙̤̞͉͚̯̞̠͍A̴̵̜̰͔ ͫ͗ ͢ L̠ͨͧͩ͘ G̴̻͈͍͔̹ ̑͗̎̅͛ ́ Ǫ̵̹̻̝̳ ͂̌
̌͘! ͖̬̰̙̗ ̿̋ ͥ ͥ̂ͣ̐́́͜͞
Z͑ͫ̓ͪ̂ͫ̽ ̴̙̤̞͉͚̯̞̠͍A̴̵̜̰͔ ͫ͗ ͢ L̠ͨͧͩ͘ G̴̻͈͍͔̹ ̑͗̎̅͛ ́ Ǫ̵̹̻̝̳ ͂̌
̌͘! ͖̬̰̙̗ ̿̋ ͥ ͥ̂ͣ̐́́͜͞ => 6
Έͳ͞Μ όΠτΛ͑ΒΕ·͔͢ʁ (UTF-8)
a
a => 1
͋
͋ => 3
佛
佛 => 4
None
=> 4
None
=> 18
Z͑ͫ̓ͪ̂ͫ̽ ̴̙̤̞͉͚̯̞̠͍A̴̵̜̰͔ ͫ͗ ͢ L̠ͨͧͩ͘ G̴̻͈͍͔̹ ̑͗̎̅͛ ́ Ǫ̵̹̻̝̳ ͂̌
̌͘! ͖̬̰̙̗ ̿̋ ͥ ͥ̂ͣ̐́́͜͞
Z͑ͫ̓ͪ̂ͫ̽ ̴̙̤̞͉͚̯̞̠͍A̴̵̜̰͔ ͫ͗ ͢ L̠ͨͧͩ͘ G̴̻͈͍͔̹ ̑͗̎̅͛ ́ Ǫ̵̹̻̝̳ ͂̌
̌͘! ͖̬̰̙̗ ̿̋ ͥ ͥ̂ͣ̐́́͜͞ => 143
͋ͳ͕ͨࢥ͏1จࣈ Ͳ͏͑Δ͖͔ʁ
byteͰ͑ΒΕͳ͍
Unicodeจࣈू߹ จࣈͱ͕ରԠ͢Δ
͋ => 3042
=> 1F914
͜ͷͷ͜ͱΛ ίʔυϙΠϯτ ͱݺͿ
͜ͷίʔυϙΠϯτΛ byteྻͰදݱ͢Δํ๏Λ ΤϯίʔσΟϯάͱ͍͏
UTF-8ͱ͔UTF-16ͱ͔ ΤϯίʔσΟϯάͷҰछ
ͱΓ͋͑ͣ ίʔυϙΠϯτΛ͑Ε ղܾʁ
͍͍͑
=> 1F468 + 200D + 1F469 + 200D + 1F466
࣮ෳͷίʔυϙΠϯτͰ ҰͭͷจࣈʹͳͬͨΓ͢Δ
ਓ͕ؒೝ͍ࣝͯ͠Δ̍จࣈ ॻهૉ(Grapheme cluster) ͱݺΕ͍ͯΔ
Ͳ͏Ε ίʔυϙΠϯτͷྻ͔Β ॻهૉΛऔΓग़ͤΔ͔
ίʔυϙΠϯτ͕ؒ ॻهૉڥքʹͳΔ͔Ͳ͏͔ͷ ݫີͳϧʔϧ͕͋Δ
UAX #29 Unicode Text Segmentation
None
͜ΕΛJSͰ࣮ͯ͠·ͨ͠ github.com/orisano/graphemesplit
ৄ͘͠ UAX #29 Λݟͯ http://unicode.org/reports/tr29/
ݟΒ͵ਓʹʓจࣈͱ ݴΘΕͨͱ͖ʹ ͪΌΜͱ֬ೝ͠Α͏ʂ
1 byte? 1 codepoint? 1 grapheme cluster?