Regex
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Regex is an abbreviation of regular expression.
Regex is a C regular expression library written by Henry Spencer. Later versions support the POSIX standardized regular expressions.
Regex is now found in various places:
- Bundled with application such as Apache.
- Default regular expression implementation in BSD Unix.
- ftp://ftp.zoo.toronto.edu/pub/regex.shar - a shar archive, released by Henry Spencer in 1999.
- http://arglist.com/regex/ -- a repackaged version for Unix systems.
- Other sites around the Internet have ports or compiled code for other systems such as Microsoft Windows.
- Picnix is an example of a Microsoft Windows implementation that uses Henry Spencers Regex library
- Tcl includes a rewritten regular expression library by Henry Spencer.
- PHP can use RegEx with the
preg_replaceandpreg_matchfunctions.
The GNU project has in the past published a package named Regex: this code may now be in the GNU C Library.