Regular Expressions Tester provides a Testing Tool for regular expressions with color highlighting.
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 ed and the filter grep) provided by Unix distributions were the first to popularize the concept of regular expressions.
Many modern computing systems provide wildcard characters in matching filenames from a file system. This is a core capability of many command-line shells and is known as globbing. Wildcards differ from regular expressions in that they can only express very restrictive forms of alternation.
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Requirements:
· Mozilla Firefox
What's New in This Release: [ read full changelog ]
New Features:
· Added to Web Developer menu of Firefox 4.0
Bugfixes:
· Fixed issue with saved regular expressions and highlighting colors not being readable from XPI caused by changes in the addon manager of Firefox 4.0 (affected new installations only)
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