regexp

From S23Wiki

	This is the JargonFile (V4.00) entry for regexp - Next: register dancing, Prev: red wire
:regexp: /regeksp/ /n./ [[[Unix]]] (alt. regex or reg-ex) 1. Common written and spoken abbreviation for regular expression, one of the wildcard patterns used, e.g., by Unix utilities such as grep(1), sed(1), and awk(1). These use conventions similar to but more elaborate than those described under glob. For purposes of this lexicon, it is sufficient to note that regexps also allow complemented character sets using ^; thus, one can specify any non-alphabetic character with [^A-Za-z]. 2. Name of a well-known PD regexp-handling package in portable C, written by revered Usenetter Henry Spencer <henry@zoo.toronto.edu>.
* (text is auto-included via JargonExtension by mutante using jargon with VERSION 4.0.0, 24 JUL 1996 - JargonFile by Eric S. Raymond is in the public domain)

http://www.ilovejackdaniels.com/regular_expressions_cheat_sheet.png