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
Perl Quiz
Search
Shoichi Kaji
May 21, 2021
Programming
0
140
Perl Quiz
Gotanda.pm 2021/05/21
Shoichi Kaji
May 21, 2021
Tweet
Share
More Decks by Shoichi Kaji
See All by Shoichi Kaji
宿泊予約サイトにおける検索と料金計算の両立
skaji
2
3.8k
昔のGo, 今のGo ~比較, ソート編~
skaji
0
220
cpm at PerlCon 2019
skaji
0
110
Perl5 Package Manager
skaji
0
690
Internal of cpm
skaji
0
600
How to execute external programs in Perl
skaji
3
630
Writing Perl with w0rp/ale
skaji
0
2.3k
nginx unit
skaji
0
47
Perl6 ecosystem
skaji
1
1.4k
Other Decks in Programming
See All in Programming
The Evolution of the CRuby Build System
kateinoigakukun
0
700
大LLM時代にこの先生きのこるには-ITエンジニア編
fumiyakume
7
2.9k
状態と共に暮らす:ステートフルへの挑戦
ypresto
1
400
PHPで書いたAPIをGoに書き換えてみた 〜パフォーマンス改善の可能性を探る実験レポート〜
koguuum
0
150
Sharing features among Android applications: experience feedback
jbvincey
0
110
Exit 8 for SwiftUI
ojun9
0
130
AIコードエディタの基盤となるLLMのFlutter性能評価
alquist4121
0
210
「”誤った使い方をすることが困難”な設計」で良いコードの基礎を固めよう / phpcon-odawara-2025
taniguhey
0
140
Kamal 2 – Get Out of the Cloud
aleksandrov
1
190
リアルタイムレイトレーシング + ニューラルレンダリング簡単紹介 / Real-Time Ray Tracing & Neural Rendering: A Quick Introduction (2025)
shocker_0x15
1
300
サービスレベルを管理してアジャイルを加速しよう!! / slm-accelerate-agility
tomoyakitaura
1
180
スモールスタートで始めるためのLambda×モノリス(Lambdalith)
akihisaikeda
2
280
Featured
See All Featured
[RailsConf 2023] Rails as a piece of cake
palkan
54
5.4k
XXLCSS - How to scale CSS and keep your sanity
sugarenia
248
1.3M
Cheating the UX When There Is Nothing More to Optimize - PixelPioneers
stephaniewalter
280
13k
Reflections from 52 weeks, 52 projects
jeffersonlam
349
20k
Imperfection Machines: The Place of Print at Facebook
scottboms
267
13k
Thoughts on Productivity
jonyablonski
69
4.6k
Statistics for Hackers
jakevdp
798
220k
Keith and Marios Guide to Fast Websites
keithpitt
411
22k
Product Roadmaps are Hard
iamctodd
PRO
52
11k
Building Better People: How to give real-time feedback that sticks.
wjessup
367
19k
Building a Scalable Design System with Sketch
lauravandoore
462
33k
Build your cross-platform service in a week with App Engine
jlugia
229
18k
Transcript
Perl Quiz😆 Shoichi Kaji
Q1. ࣍ͷจষਖ਼͍͔͠? Time::Localύοέʔδʹ͓͍ͯ timelocalؔͰͳ͘ timelocal_modernؔΛ͏ ͜ͱ͕ਪ͞Ε͍ͯΔɻ
A1. ਖ਼͘͠ͳ͍
• timelocal جຊతʹ localtime ͷ"ٯ"Λఏڙ͢Δؔɻ Y,m,d,H,M,SΛड͚औΓunixtimeΛฦ͢ɻ • ͕ɺ"DWIM"ͳڍಈΛ͢Δ্ؔɺ 2020Λڥʹ݁Ռ͕มΘΔՄೳੑ͕͋Δ😨 •
͜ΕΛղܾ͘͢ɺܾఆతͳ݁ՌΛฦ͢ timelocal_modern͕༻ҙ͞Εͨɻ • ͕ɺͦΕগʑ͍·͍ͪͩͬͨͷͰɺݱࡏͰ timelocal_posixΛ͏͜ͱ͕ਪ͞Ε͍ͯΔɻ ͜Εlocaltimeͷਅͷ"ٯ"Λఏڙ͢Δɻ
Q2. ࣍ͷ ʹೖΔͷԿ͔? ֎෦ίϚϯυͷඪ४ग़ྗΛ ಘΔؔͱͯ͠ qx//, ``, ͕͋Δɻ
A2. readpipe
• rjbs͞ΜͷϒϩάಡΜͰ͍ͯɺ readpipeͱ͍͏͕ؔ͋Δ͜ͱΛ࠷ۙͬͨɻ • ಉ͡ಇ͖Λ͢ΔΈࠐΈ͕ؔ 3ͭ͋Δඞཁ...
Q3. PerlͰϋογϡϦϑΝϨϯεͱ ϒϩοΫʹಉ͡ه߸ {} Λ༻͍͍ͯΔɻ ͳΜΒ͔ͷཧ༝ͰϋογϡϦϑΝϨϯεΛ ໌͍ࣔͨ͠ͱ͖ +{} ͕ଟ༻͞ΕΔɻ ͰٯʹϒϩοΫΛ໌͍ࣔͨ͠ͱ͖
ͳΜͱॻ͘ͱΑ͍͔ʁ
A3. {; }
• metacpanΛோΊ͍ͯͨΒɺ App::UniϞδϡʔϧͰΘΕ͍ͯͯͬͨɻ • ࣮ࡍͷͱ͜Ζɺ+{}, {; } ຊʹඞཁͳॴগ ͳ͍ͱࢥ͏😇
Q4. Perl v5.16Ҏ্ʹ͓͍ͯ ࣮ߦϢʔβͷhomeσΟϨΫτϦ Λऔಘ͢Δ؆ศͳํ๏ʁ
A4. my $home = (<~>)[0];
• ΫϩεϓϥοτϑΥʔϜΛҙ্ࣝͨ͠Ͱ HomeσΟϨΫτϦΛऔಘ͢Δͷ݁ߏେมɻ • ͪΌΜͱΔͳΒFile::HomeDirϞδϡʔϧΛ͏ͷ͕ ΑΖ͍͠ɻ • "͋Δఔ"ͰेͳΒɺάϩϒ(glob,<>)Ͱ "~" Λ
ղܾͤͯ͞औಘ͢Δͷ͕ϥΫɻ • ͳ͓ɺPerl5.16ະຬҙ͍ࣝͨ͠ͳΒ File::HomeDir::TinyΛ͏ͱΑΖ͍͠ɻ
Q5. Perl͋ΔόʔδϣϯΑΓ @INCͷॱ൪͕มΘ͍ͬͯΔɻ มΘͬͨͷ࣍ͷ͏ͪͲΕ͔? (A) v5.10͔Β (B) v5.12͔Β (C) v5.14͔Β
A5. (B) v5.12͔Β
• @INCϞδϡʔϧαʔνύε͕ೖ͍ͬͯΔมɻ • @INCجຊతʹ * 1൪: CPANϞδϡʔϧೖΔsitelib * 2൪: coreϞδϡʔϧ͕ೖΔcorelib
ʹΑͬͯߏ͞ΕΔɻ • ͕ɺ5.10Ҏલcorelib, sitelibͷॱʹͳ͍ͬͯͨɻ • ͦͷ্ؔɺ5.10ҎલͰdual lifeϞδϡʔϧΛΠϯετʔϧ͢Δ ͱɺcorelibʹ্ॻ͖͞ΕΔɻ • CartonͷޙܧCarmel͕v5.12Λཁٻ͍ͯ͠Δͷ͜Ε͕ཁҼɻ
Q6. ҎԼͷίʔυΛWindowsͰ࣮ߦ͢Δͱ ʮHello, World!ʯ ͱදࣔ͞ΕΔɺ͞Εͳ͍?
A6. දࣔ͞Εͳ͍
• Windowsʹ͓͍ͯ ͨͱ͑ system LIST ܗࣜͰ͋ͬͯ ಛघจࣈΛΫΦʔτ͠ͳ͍ͱ͍͚ͳ͍Մೳੑ͕͋ Δɻ • ઌͷྫͩͱಛʹʮ"ʯ͕ͱͳͬͯ
ʮHello World!ʯͱදࣔ͞Εͳ͍ɻ • Windows༻ͷΫΦʔτʹɺWin32::ShellQuote ϞδϡʔϧΛ͏ͱΑ͍ɻ
͓ΘΓ