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Ruby – grepに使う正規表現をエスケープして埋め込む例 ( fill in escaped regexp to grep pattern )

Posted at

カッコが正規表現として扱われしまい、ヒットしない

['(ABC)_XYZ'].grep(/(ABC)_XYZ/)
# => []

ヒットする

['(ABC)_XYZ'].grep(/#{Regexp.escape('(ABC)')}_XYZ/)
# => ["(ABC)_XYZ"]

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