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なぜ私はPerlでコーディングするのか@吉祥寺.pm16
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korenari
November 22, 2018
Programming
0
960
なぜ私はPerlで コーディングするのか@吉祥寺.pm16
吉祥寺.pm16の登壇資料
https://kichijojipm.connpass.com/event/104750/
https://twitter.com/Korenari_D
korenari
November 22, 2018
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Transcript
ͳͥࢲ1FSMͰ ίʔσΟϯά͢Δͷ͔ 8 6 . 2 0 1
ࣗݾհ T G . , N F R D LP
LP , , !,PSFOBSJ@%
͜ͷλΠτϧʹ͖͔͚ͨͬ͠ https://twitter.com/black_kaiji/status/1057973231427059714
͜ͷλΠτϧʹ͖͔͚ͨͬ͠ https://twitter.com/black_kaiji/status/1057973231427059714 https://twitter.com/black_kaiji/status/1058712946098892800
ࠓͷαϚϦʔ •ͳͥࢲ1FSMͰίʔσΟϯά͢Δͷ͔
ࠓͷαϚϦʔ •ͳͥࢲ1FSMͰίʔσΟϯά͢Δͷ͔ •͍ •͍͢ •͏·͍
ࠓͷαϚϦʔ •ͳͥࢲ1FSMͰίʔσΟϯά͢Δͷ͔ •͍ ʜʜ Ϩεϙϯεॲཧ͕͍ •͍͢ ʜʜ লϝϞϦ •͏·͍ ʜʜ
ߦͰਖ਼نදݱ͕ॻ͚Δ
ࠓͷαϚϦʔ •ͳͥࢲ1FSMͰίʔσΟϯά͢Δͷ͔ •͍ ʜʜ Ϩεϙϯεॲཧ͕͍ •͍͢ ʜʜ লϝϞϦ •͏·͍ ʜʜ
ߦͰਖ਼نදݱ͕ॻ͚Δ 㲎 ਖ਼نදݱϦςϥϧ͕͋Δʂ
ਖ਼نදݱϦςϥϧʁ •ӈهͷࣈ෦ •1FSMͰએݴ͕ෆཁͰਖ਼ن දݱ͕ར༻Մೳ •෦Ͱྑ͍ײ͡ʹίϯύΠϧ •
$word = ‘kichijoji’; if ($word =~ /^k/) { print ”OK ¥n"; } else { print ”NG ¥n"; }
ਖ਼نදݱϦςϥϧͬͯԿ͕خ͍͠ͷʁ • ਖ਼نදݱϦςϥϧ͕ͳ͍ͱɺਖ਼نදݱΛద༻͢Δ͝ͱʹɺຖ ճਖ਼نදݱΛίϯύΠϧ͢ΔίʔυΛॻ͖͕ͪͰ͢ɻ • ͜Εɺ࣮ߦΛେ෯ʹѱԽͤ͞·͢ɻ • ਖ਼نදݱϦςϥϧ͕͋Εɺਖ਼نදݱΛݴޠॲཧܥଆͰίϯύ Πϧ͍ͯ͠ճ͢͜ͱ͕Ͱ͖ΔͷͰɺ࣮ߦ্͕͠·͢ɻ
http://blog.kazuhooku.com/2013/12/blog-post.html
ࢀߟ ͪΐͬͱલʹʹͳͬͨΒ͍͠ • ਖ਼نදݱ͕ߏจͱͯ͠ඞཁ͔Ͳ͏͔ͱ͍͏͔Β IUUQTUPHFUUFSDPNMJ ʢ݄ʣ • ϓϩάϥϛϯάݴޠʹ͓͚Δਖ਼نදݱϦςϥϧͷඞཁੑʹ͍ͭͯ IUUQCMPHLB[VIPPLVDPNCMPHQPTUIUNM ʢ݄ʣ
• ਖ਼نදݱϦςϥϧຊʹඞཁͳͷ͔ʁ IUUQTXXXTMJEFTIBSFOFULXBUDITT ʢ݄ !1Z$PO+1ʣ
1FSMͱ͍͑ϫϯϥΠφʔ perl -ne 'print if 30 ..
40’ *.txt 3040 perl -pi -e 's/foo/bar/g;’ t1.txt > t2.txt foobar ! perl -ne 'print if /./' t1.txt > t2.txt . $ →" Perl %#
1FSMͱ͍͑ϫϯϥΠφʔ perl -ne 'print if 30 ..
40’ *.txt 3040!# perl -pi -e 's/foo/bar/g;’ t1.txt > t2.txt foobar$) perl -ne 'print if /./' t1.txt > t2.txt . + !# →%!*( ' " TL& m(_ _ )m
ॳΊͯ1FSMͰൃදͰ͖ͨʂʂ