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
150
Perl Quiz
Gotanda.pm 2021/05/21
Shoichi Kaji
May 21, 2021
Tweet
Share
More Decks by Shoichi Kaji
See All by Shoichi Kaji
Parallel::Pipesの紹介
skaji
2
950
宿泊予約サイトにおける検索と料金計算の両立
skaji
2
3.9k
昔のGo, 今のGo ~比較, ソート編~
skaji
0
240
cpm at PerlCon 2019
skaji
0
120
Perl5 Package Manager
skaji
0
730
Internal of cpm
skaji
0
620
How to execute external programs in Perl
skaji
3
670
Writing Perl with w0rp/ale
skaji
0
2.3k
nginx unit
skaji
0
52
Other Decks in Programming
See All in Programming
AIのメモリー
watany
13
1.4k
Jakarta EE Meets AI
ivargrimstad
0
630
「次に何を学べばいいか分からない」あなたへ──若手エンジニアのための学習地図
panda_program
3
720
CLI ツールを Go ライブラリ として再実装する理由 / Why reimplement a CLI tool as a Go library
ktr_0731
3
1k
kiroでゲームを作ってみた
iriikeita
0
150
新世界の理解
koriym
0
130
CEDEC 2025 『ゲームにおけるリアルタイム通信への QUIC導入事例の紹介』
segadevtech
3
810
令和最新版手のひらコンピュータ
koba789
13
6.9k
Comparing decimals in Swift Testing
417_72ki
0
170
DataformでPythonする / dataform-de-python
snhryt
0
160
AI Ramen Fight
yusukebe
0
130
Dart 参戦!!静的型付き言語界の隠れた実力者
kno3a87
0
180
Featured
See All Featured
Measuring & Analyzing Core Web Vitals
bluesmoon
8
550
Templates, Plugins, & Blocks: Oh My! Creating the theme that thinks of everything
marktimemedia
31
2.5k
Scaling GitHub
holman
461
140k
Fireside Chat
paigeccino
38
3.6k
Responsive Adventures: Dirty Tricks From The Dark Corners of Front-End
smashingmag
251
21k
YesSQL, Process and Tooling at Scale
rocio
173
14k
Build your cross-platform service in a week with App Engine
jlugia
231
18k
Helping Users Find Their Own Way: Creating Modern Search Experiences
danielanewman
29
2.8k
Agile that works and the tools we love
rasmusluckow
329
21k
RailsConf 2023
tenderlove
30
1.2k
jQuery: Nuts, Bolts and Bling
dougneiner
63
7.8k
Unsuck your backbone
ammeep
671
58k
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