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Tom Utilities

正規表現チートシート

開発者ユーティリティ

文字クラス、量指定子、アンカー、グループ、先読み/後読み、エスケープをまとめた正規表現の早見表です。

使い方

Using the cheat sheet

Search for a token or a description to filter the table, then use the pattern directly in JavaScript, Python or any engine that follows the common syntax.

  1. Search for a pattern or keyword.
  2. Read the description.
  3. Copy the token into your expression.

よくある質問

Which regex flavour is this?

The common Perl-compatible subset supported by JavaScript, Python, Java and most other engines.

Does the dot match newlines?

By default it does not. Enable the s (dotAll) flag in JavaScript or re.DOTALL in Python if you need it to.