文も字じ種しゅ別べつ

noun

character class

Computing term for a category of characters, such as letters, digits, or punctuation, used in regular expressions and text processing.

• 正せい規き表ひょう現げんでは、文も字じ種しゅ別べつを使つかって数すう字じだけを検けん索さくできます。

  In regular expressions, you can use character classes to search only for digits.