Regex support part of the standard C++ library defined in C++11 and previously in TR1| www.regular-expressions.info
The Perl programming language, originally designed for text-processing only, is the main cause for the popularity that regular expressions enjoy nowadays. Mainly because Perl’s regex engine introduced many new powerful features, and because regexes are part of the Perl syntax, and not an add-on library as with most other languages.| www.regular-expressions.info
Detailed description of the capabilities of the JavaScript RegExp Object, defined in the ECMA-262 standard.| www.regular-expressions.info
Regex support part of the Boost C++ source library| www.regular-expressions.info