Last Updated:2025/12/07

When debugging my regex, I realized that negative lookbehinds were the only way to exclude prefixes without consuming characters.

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When debugging my regex, I realized that negative lookbehinds were the only way to exclude prefixes without consuming characters.

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正規表現をデバッグしていると、マッチの前に特定の文字列が現れないことを確認する否定の後読みだけが、文字を消費することなく接頭辞を除外する唯一の方法だと気づきました。

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