regex
A regular expression (shortened as regex or regexp), sometimes referred to as rational expression, is a sequence of characters that specifies a match pattern in text. Usually such patterns are used by string-searching algorithms for "find" or "find and replace" operations on strings, or for input validation.
Regular expression techniques are developed in theoretical computer science and formal language theory. They are used in search engines, in search and replace dialogs of word processors and text editors, in text processing utilities such as sed and AWK, and in lexical analysis. Regular expressions are also supported in many programming languages.
Different syntaxes for writing regular expressions have existed since the 1980s, one being the POSIX standard and another, widely used, being the Perl syntax.
Here are 4,964 public repositories matching this topic...
Versatile, Windows-based file system searching tool that leverages regular expressions
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May 9, 2013 - Visual Basic
RegexPlanet's Perl backend (legacy)
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Jul 24, 2013 - Perl
Generate text from regular expressions. (wait, I definitely implemented this functionality (reverse regexps) at some point; where did I put that? there are no changes in this fork. oh well, there are other libraries for it now I think)
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Oct 22, 2013 - JavaScript
A package for using JavaScript regexes with Go
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Jan 25, 2014 - Go
TRegExpr library (http://regexpstudio.com/TRegExpr/TRegExpr.html)
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Mar 26, 2014 - Pascal
Simple, extendable javascript BBCode parser.
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Apr 15, 2014 - JavaScript
Highlighter for JavaScript regex syntax
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May 8, 2014 - JavaScript
Reverse regular expression engine that calculates strings matching a given regex
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Oct 10, 2014 - C++
Walter Waldo's port of Henry Spencer's regular expression library from Tcl.
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Dec 26, 2014 - C
Henry Spencer's old regular expression library, also known as the book regex library, circa 1986.
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Dec 26, 2014 - C
Henry Spencer's BSD regular expression library. This is the original version, with a single bug fix. A modified version is in the rxspencer repository.
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Feb 25, 2015 - C
Add the lookahead & lookbehind assertions to Emacs regular expressions
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Mar 3, 2015
Notepad++ support for Nasal syntax highlighting and function list parsing.
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Mar 21, 2015