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Python to RubyAdvent Calendar 2021

Day 16

[py2rb] itertools.chain

Last updated at Posted at 2021-12-21

はじめに

移植やってます

itertools.chain (Python)

import itertools

for i in itertools.chain([x.end() for x in re.finditer(rule, sequence)], [None]):

extendと似ていますが、こちらは平坦化も行っています。

flatten (Ruby)

[sequence.scan(rule).map { sequence.index(_1) + _1.size } + [nil]].flatten.each do |i|
end

平坦化といえばflatten

メモ

  • Python の itertools.chain を学習した
  • 道のりは遠そう
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