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量指定子(quantifiers)。直前の表現の 0 回以上の繰り返し (最短一致)

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irb(main):015:0> puts "/'(.*)'/ =~ 'hoge''foo''bar': #{/'(.*)'/ =~ "'hoge''foo''bar'"}" /'(.*)'/ =~ 'hoge''foo''bar': 0
=> nil
irb(main):016:0> $1
=> "hoge''foo''bar"
irb(main):017:0> puts "/'(.*?)'/ =~ 'hoge''foo''bar': #{/'(.*?)'/ =~ "'hoge''foo''bar'"}" /'(.*?)'/ =~ 'hoge''foo''bar': 0
=> nil
irb(main):018:0> $1
=> "hoge"


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