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文字列操作に見るRubyとRustの比較文字列操作に見るRubyとRustの比較
Kazushige Tominaga
October 25, 2017
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文字列操作に見るRubyとRustの比較文字列操作に見るRubyとRustの比較
Megurorb#8
https://megurorb.connpass.com/event/69419/
Kazushige Tominaga
October 25, 2017
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Transcript
จࣈྻૢ࡞ʹݟΔ3VCZͱ3VTUͷൺֱ
2 Fablic, inc. Software Engineer 5PNNZ @tooooooooomy ϓϩϑΟʔϧ @kazu9su ओʹαʔόʔαΠυͷ։ൃΛ୲
3 ϑϦϧ '3*- ʮཉ͍͠ʯ͕Έ͔ͭΔָఱͷϑϦϚΞϓϦ
4 ͓Βͤ 7JN$POGεϙϯαʔͰ͢ 'BCMJDWJNओ࠵ͯ͠·͢ &CJTVSCओ࠵ͯ͠·͢ ࣍ճ ਫ ʹ։࠵͠·͢
લఏ 5
6 σϓϩΠϑϩʔͷվળ w &OHJOFԽͨ͠ϦϙδτϦͷσϓϩΠϑϩʔΛվળ
7 &OHJOFΠϝʔδਤ 4FBSDI "ENJO 8FC "1* &OHJOF
8 લఏ w ֤ϦϙδτϦ͔Β(FNύοέʔδͱͯ͠ࢀর͞ΕΔ w ϦϙδτϦɺҙͷόʔδϣϯΛλάͰࢀর͢Δ w ػցతʹλάΛΓ͍ͨ
9 ςϯϓϨʔτͷ࡞ w λάੜʹඞཁͳ෦ΛςϯϓϨԽ w ϓϧϦΫ࡞࣌ʹࣗಈͰૠೖ͞ΕΔ w ςϯϓϨͷ༰ΛݩʹHJUUBHΛΔεΫϦϓτ Λ࡞
10 վળલͷϑϩʔ ϓϧϦΫΛϚʔδ ΫϦοϓϘʔυʹίϐʔ εΫϦϓτΛ࣮ߦ PO-PDBM
HJUIVCͷUBH࡞ϖʔδͷϦϯΫ͕දࣔ͞ΕΔ ΫϦοΫͨ͠ϦϯΫΛ౿ΜͰϦϦʔε PO(JUIVC
11 ϓϧϦΫΛϚʔδ ΫϦοϓϘʔυʹίϐʔ εΫϦϓτΛ࣮ߦ PO-PDBM
HJUIVCͷUBH࡞ϖʔδͷϦϯΫ͕දࣔ͞ΕΔ ΫϦοΫͨ͠ϦϯΫΛ౿ΜͰϦϦʔε PO(JUIVC ͜ͷ෦ΛࣗಈԽ վળલͷϑϩʔ
12 )08 w 1VMM3FRVFTUΠϕϯτ௨ ɾ1VMM3FRVFTUΛϚʔδ τϦΨʔ w UBH࡞εΫϦϓτΛ࣮ߦ w 4MBDLʹ௨
ᶃ ᶄ ᶅ ᶆ
13 վળޙͷϑϩʔ ϓϧϦΫΛϚʔδ TMBDLʹ௨͞ΕͨϦϯΫΛΫϦοΫͯ͠ϦϦʔε IFSPLV)VCPUͰࣗಈԽ ௨͕4MBDLʹ͘Δ
14 ͦͷޙͷ w4MBDL௨͕͍ 13Ϛʔδޙೋ w#VOEMFJOTUBMMʹ͕͔͔͍࣌ؒͬͯͨ w 3VTUͰॲཧΛॻ͖͢͜ͱͰղܾ w όΠφϦϑΝΠϧͳͷͰίϯύΠϧ͍Βͣ
w ࢀߟ 3VTUͰจࣈྻΛૢ࡞͢Δ w વNSVCZͰ͓̺
ύʔε 15
16 ύʔε w ςΩετΛղੳͯ͠ඞཁͳߏ Λ࡞Δ w ཉ͍͠ใ w ߋ৽ͷϨϕϧ w
มߋ༰
17 3VCZ
18 3VTU
19 ߟ w লུՄೳ˱جຊతʹඞਢ w DBTFจ˱ύλʔϯϚον w ಈతʹมΛఆٛՄೳ˱༻͢Δม ͘͠ߏ ࣄલʹએݴඞਢ
w ҙͷέʔεͷΈࢦఆ͢Ε0,˱ͯ͢ͷύλʔϯͷཏ͕ඞਢ w 3VCZ,BJHJͰ3VCZͷύλʔϯϚονͷఏҊ͕͋Γ·ͨ͠Ͷ w ಈతͳύλʔϯϚονΒ͍͠ w ࠓճͳ͔ͬͨͷͰεϧʔͯ͠Δ͚Ͳɺ3VCZͩͱਖ਼نදݱͯ͠·͢Ͷ
ਖ਼نදݱ 20
21 ਖ਼نදݱ w ύʔεͨ͠ใΛ͍͍ͨঢ়ଶ ʹՃ
22 3VCZ
23 3VTU
24 ߟ w ਖ਼نදݱݴޠඪ४ Έ͍ͨͳΜͩͱࢥ͍ͬͯΔ ˱֎෦ϥΠϒϥϦͰ͋Δ w ԶୡงғؾͰਖ਼نදݱ͍ͯ͠Δ˱ͦΕͧΕͷ͕ؔฦ͢ܕΛѲ͠ɺࣗ ͕Γ͍ͨ͜ͱʹ߹Θͤͯత֬ʹܕมͳͲΛߦ͏
จࣈྻͷੜ 25
26 จࣈྻͷੜ w όʔδϣϯΛ্͛Δ w ྫ ݩW w ."+03ˠW w
.*/03ˠW w 1"5$)ˠW
27 3VCZ
28 3VTU
29 ߟ w ԋࢉ͍ͨ͠Μ͔ͩΒવͱͯ͠ѻ͏˱จࣈྻͳΜ͔ͩΒܭࢉͳΜͯͰ ͖ΔΘ͚ͳ͍ w TJOUBYͰจࣈྻΛมߋ͢Δ͜ͱΛ͓͠˱ྻΛ࡞ͬͯ࠷ޙʹจࣈྻʹม
ܭଌ 30
31 ܭଌ w 3VCZ ʜ
32 ܭଌ w 3VCZ ʜT
33 ܭଌ w 3VCZ ʜT w 3VTU
34 ܭଌ w 3VCZ ʜT w 3VTU ʜ
35 ܭଌ w 3VCZ ʜT w 3VTU ʜT
36 ·ͱΊ w ͬͯΈͨΒͦΕͧΕͷݴޠͷߟ͑ํͷҧ͍Λͻ͠ͻ͠ͱײͨ͡ w 3VCZ w ʮͱΓ͋͑ͣಈ͘ʯ͜ͱͷ͋Γ͕ͨΈͱੜ࢈ੑ w งғؾͰॻ͚Δ͍͍ͬͯΑͶ
w ͪΌͪΌͬͱԿ͔Λ࡞Δʹ࠷ద w 3VTU w ͕ࣗԿΛ͍ͨ͠ͷ͔ɻΛਅʹߟ͑ΔػձΛ༩͑ͯ͘ΕΔ w งғؾͰઈରʹॻ͚ͳ͍ w ίϯύΠϧ࣌ͰࣗͰ༧ظ͠ͳ͍όάͳͲΛ௵ͯ͘͠ΕΔ w ܦݧͳ͍͚Ͳ ͋ΔఔҎ্ͷن ਓɾཁ݅ΖΖ ͷγεςϜ Λݫີʹ࡞͍ͬͯ͘ͷʹ͍ͯΔͷ͔͠Εͳ͍
37 'BCMJDͰ<3VCZJTUͱ3VTUBDFBO>Λੵۃ࠾༻தʂ
͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠