Programmin­g

Regular Expression Tester Regular Expression Tester- Basic JavaScript regex tester. Highlights matches. Regex Studio Regex Studio- Regex builder for .NET expressions. Features screenshots and documentation. Debuggex Debuggex- Regex debugging tool. Features visual representations of regular expressions and sliders allowing users to step through test strings. RegexPlanet RegexPlanet- Multi-language online regular expression tester. Supports Go, Haskell, Java, JavaScript, .Net, Perl, PHP, Python, Ruby, Tcl and XRegExp. Regex101 Regex101- Online regex tester for PHP, PCRE, JavaScript and Python that highlights pattern and matches on the fly. Reg-Exp.com Reg-Exp.com- Features brief regex reference, interactive tutorial and tester. Exploring Ruby’s Regular Expression Algorithm Exploring Ruby’s Regular Expression Algorithm- Blog post about Onigurama, Ruby's regex engine. Discusses the mechanics of the engine. Ruby-Doc Ruby-Doc- Documentation for Ruby's Regexp class. Covers syntax, performance, methods. Regular Expression Tool Regular Expression Tool- Online regex tester that supports PCRE, POSIX and Javascript flavors. Features multiple modes, replacement, highlighting on the fly. Regulator Regulator- Windows regex builder that matches, replaces and splits. Includes download and source. Regex Treeer Regex Treeer- Open-source Windows software aiming to solve complex parsing tasks by applying multiple regular expressions. Includes screenshots and documentation. RegJex RegJex- Regex tester that uses PHP's preg_match function. Features color-coded box indicating the match status of properly delimited patterns on test strings. Regex Storm Regex Storm- .NET regular expressions tester. Features regex reference, displays matches, position and split list. Regular Expression Tester Regular Expression Tester- Online JavaScript and Perl-like regex tool. Displays matches, generates JavaScript and PHP code. Regexe Regexe- Online regex tester. Features text replacement. RegexPal RegexPal- JavaScript regex tester. Highlights matches on the fly. Regex Tester Regex Tester- Online regex tester that supports JavaScript and PCRE. Includes pattern examples and syntax reference. Txt2re Txt2re- Online graphical regex generator. Lets users select string components to be matched and generates corresponding regular expressions. PCRE Workbench PCRE Workbench- Windows program to test PCRE expressions. Features screenshots, manual and download links. RegexBuddy RegexBuddy- Commercial tool for creating, testing and implementing regular expressions in over twenty regex flavors. Features detailed manual, screenshots and demos. The Regex Coach The Regex Coach- Windows PCRE expression builder. Includes screenshot, manual and download links. JRX JRX- Online JavaScript regex tester. Features samples and multiple modes. RegExpr for VB & VBA RegExpr for VB & VBA- Commercial code module that provides regex support in Visual Basic 5 and 6. Includes tutorial and demo. Visual RegExp Visual RegExp- Graphical regex tester. Features Windows and Tcl versions. Rubular Rubular- Online Ruby regex tester. Highlights matches on the fly. Regular Expressions to DFAs using Compressed NFAs Regular Expressions to DFAs using Compressed NFAs- Article by Chia-Hsiang Chang. Implementing Regular Expressions Implementing Regular Expressions- Collection of research articles about efficient regular expression engines. Features article description, links to libraries. Approximate Matching of Regular Expressions Approximate Matching of Regular Expressions- Article by Eugene W. Myers and W. Miller. Presents a best-match algorithm. Algorithms to Accelerate Multiple Regular Expressions Matching for Deep Packet Inspection Algorithms to Accelerate Multiple Regular Expressions Matching for Deep Packet Inspection- Article by multiple authors. Introduces the delayed input DFA, an alternate regular expr… Regular Expressions for Language Engineering Regular Expressions for Language Engineering- Article by Lauri Karttunen, Jean-Pierre Chanod, Gregory Grefenstette and Anne Schiller. Introduces regular expression calculus. Fast Regular Expression Matching using FPGAs Fast Regular Expression Matching using FPGAs- Article by Reetinder Sidhu and Viktor K. Prasanna. Discusses matching methods using Field Programmable Gate Arrays. Structural Regular Expressions Structural Regular Expressions- Article by Rob Pike. Discusses the use of regex to describe the structure of files. New Techniques for Regular Expression Searching New Techniques for Regular Expression Searching- Article by Gonzalo Navarro and Mathieu Raffinot. Presents two techniques for regex searching. SWYN: A Visual Representation for Regular Expressions SWYN: A Visual Representation for Regular Expressions- Article by Alan F. Blackwell. Discusses approach for constructing regexps from examples. NFAs with Tagged Transitions, their Conversion to Deterministic Automata and Application to Regular Expressions NFAs with Tagged Transitions, their Conversion to Deterministic Automata and Application to Regular Expressions- Article by Ville Laurikari. Efficient Submatch Addressing for Regular Expressions Efficient Submatch Addressing for Regular Expressions- Master thesis of Ville Laurikari. Proposes algorithm for submatch addressing. RE-Tree: An Efficient Index Structure for Regular Expressions RE-Tree: An Efficient Index Structure for Regular Expressions- Article by Chee-Yong Chan, Minos Garofalakis, and Rajeev Rastogi. Discusses algorithms to speed up matching. Perl Regular Expressions by Example Perl Regular Expressions by Example- Basic introduction to Perl regex. Includes examples and partial syntax reference. CPAN CPAN- Collection of regex modules. Includes documentation and download. Perl.org Perl.org- Regex resources on the official Perl site. Includes manual pages, tutorials and FAQs. Equinoxbase Equinoxbase- Online application. Converts Perl 5 regexps for Perl 6. A Regex Introduction A Regex Introduction- Tutorial. Covers basic syntax, tricks and traps. Perlfect Perlfect- Online regex tester. Displays matches in bold. Perl Regular Expressions Perl Regular Expressions- Tutorial. Covers matching, replacing and sample problems such as matching a file path's double dots. MakeRegex MakeRegex- Perl module that creates regular expressions from word lists. Includes tester, instructions and download. How Regexes Work How Regexes Work- Collection of Perl regex resources. Includes tutorial, slideshow, class summary, code modules, PDF e-book. Perl Regular Expression Quick Reference Perl Regular Expression Quick Reference- One-page cheat sheet. Contains tables of syntax elements such as character classes, quantifiers and modifiers. Jakarta ORO Jakarta ORO- Retired project with Java classes that supported Perl5-compatible and AWK-like regular expressions. Features archived releases. Jakarta Regexp Jakarta Regexp- Retired Java regex package. Includes archived release. Dk.brics.automaton Dk.brics.automaton- Regex package that supports UTF-16 and non-standard operations such as unions and intersections. Includes documentation, FAQ and download.