RegExp
From Zeroasterisk
Web Development: PHP ASP RoR AJAX RegExp CSS JS tools scripts
A regular expression (abbreviated as regexp or regex, with plural forms regexps, regexes, or regexen) is a string that describes or matches a set of strings, according to certain syntax rules. Regular expressions are used by many text editors and utilities to search and manipulate bodies of text based on certain patterns. Many programming languages support regular expressions for string manipulation. For example, Perl and Tcl have a powerful regular expression engine built directly into their syntax. The set of utilities (including the editor sed and the filter grep) provided by Unix distributions were the first to popularize the concept of regular expressions.
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External Links
testing sites
- www.rexv.org (one of the best I've seen, with PCRE, Posix, Javascript)
- REgExLib.com
cheatsheets
- cheatsheet printable image
- cheatsheet .NET from REgExLib.com
- A basic javascript testing tool/tutorial/cheatsheet
- Cheatsheets#Regular_Expressions
tutorials
info
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