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Roadagain
June 20, 2017
Programming
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RegExp the lifehack
ictechで発表したスライドです
Roadagain
June 20, 2017
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Transcript
3FH&YQUIFMJGFIBDL Roadagain@iiplab:~$ cat *.log | grep “^\S+72”
ਖ਼نදݱ /[rR]eg[eE]xp?/
ਖ਼نදݱ ςΩετฤूͷཔΓʹͳΔΦτϞ
ਖ਼نදݱ ίʔυฤूͷཔΓʹͳΔΦτϞ
ਖ਼نදݱ ͑Δͱඇৗʹศརʂ ࠷ૣϥΠϑϋοΫͷҰछ
ਖ਼نදݱ ҾͷมߋʹҰׅରԠʂ ෳύλʔϯͷλΠϙΛҰׅमਖ਼ʂ දه༳Εͷදݱʹ͑Δʂ
ਖ਼نදݱ ࠓճհ͢Δͷ ৗͰ͑Δਖ਼نදݱ
େ·͔ͳྨ จࣈྻ ϝλจࣈ ͦͷଞͷจࣈΫϥε
େ·͔ͳྨ จࣈྻ ϝλจࣈ ͦͷଞͷจࣈΫϥε
จࣈྻ จࣈྻ୳ࡧ
จࣈྻ
େ·͔ͳྨ จࣈྻ ϝλจࣈ ͦͷଞͷจࣈΫϥε
ϝλจࣈ ී௨ʹจࣈͱͯ͠͏߹ Τεέʔϓ͕ඞཁͰ͢
ϝλจࣈ ܁Γฦ͠ * ճҎ্ + ճҎ্ ? ճPSճ ho* =~
hook la+ =~ claaap hoge? =~ hog
ϝλจࣈ ܁Γฦ͠ {n} Oճ {n,m} OճdNճ go{2} =~ google ap{1,2}
=~ apple
ϝλจࣈ จࣈݶఆ . จࣈ [ ] <>ͷࣈ [a-z] BUP[ [^
] OPU .at =~ hat [abc] =~ abc [A-Z] =~ TeX [^hex] =~ enum
ϝλจࣈ อଘ () ͘͘Δ \n ͷϚον෦ (abc) =~ abc ([ab])\1
=~ aa
ϝλจࣈ ͦͷଞ . ҙͷࣈ | 03 ^ ߦ಄ ઌ಄ $
ߦ ඌ \ Τεέʔϓ .at =~ hat lic|sk =~ click ^fx =~ fxac eX$ =~ LaTeX \.a =~ .alsoc
େ·͔ͳྨ จࣈྻ ϝλจࣈ ͦͷଞͷจࣈΫϥε
ͦͷଞͷจࣈΫϥε 1FSMͷఆ͕ٛେຊͬΆ͍ 104*9Ϋϥε Θ ͳ͍Ͱ͢
ͦͷଞͷจࣈΫϥε \d ΞϥϏΞࣈ \w BMOVN \s ۭനจࣈ \d+ =~ 114514
\w+7 =~ k1ja7a9 a\s+b =~ d␣a␣␣b
ͦͷଞͷจࣈΫϥε \D [^\d] \W [^\w] \S [^\s]
ਖ਼نදݱ༻ྫ దʹσϞ͠·͢
·ͱΊ ਖ਼نදݱςΩετฤूͷڧ͍ຯํ ਖ਼نදݱϥΠϑϋοΫ ࠷ѱ.*͚֮ͩ͑ͱ͚େৎ