regular expression

noun — 2 senses

regular expression

noun
1

Computing, Computing theory, Engineering, Mathematics, Natural sciences, Physical sciences, Sciences A concise description of a regular formal language with notations for concatenation, alternation, and iteration (repetition) of subexpressions.

2

Computing, Engineering, Mathematics, Natural sciences, Physical sciences, Sciences Broadly Any pattern for text matching or searching, frequently offering more or less functionality than a theoretical regular expression.

Synonyms
regex, regexp
Derived terms
grep, PCRE, re, regex, regexp

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.