noun
regular expression
Computing term for a pattern-matching string. Often abbreviated as 正規表現, which is more common.
See also: 正規表現
正則表現を使ってテキストを検索する。
Search text using a regular expression.
More common synonym for 'regular expression'. 正則表現 is a less frequent variant.
Compound of 正則 (regular, rule-based) and 表現 (expression), likely a calque of English 'regular expression'.