regex (3 products)

nnCron 1.89 (Shareware, $25.00)

nnCron is an advanced scheduler, scripting tool and automation manager. Besides possessing the traditional scheduler features (starting programs, displaying reminder messages and opening documents at specified time), nnCron also can:

PowerGREP 2.3.1 (Shareware, $99)

PowerGREP is a powerful grep tool for quickly searching for a piece of information through files and folders on your computer, even if you do not know in advance exactly what you are looking for. PowerGREP's rich Perl-compatible regular expression support allows you to search for virtually anything by specifying the form of what you want, and let PowerGREP find the actual text matching that form. The documentation that is included with PowerGREP contains a detailed introduction to regular expressions, with many simple and complex examples.

RegexBuddy 1.2.1 (Shareware, $29.95)

Perfect companion for working with regular expressions. Easily create regular expressions that match exactly what you want. Clearly understand complex regexes written by others. Quickly test any regex on sample strings and files, preventing mistakes on live data. Use the regex with auto-generated code snippets in C#, VB, Java, Delphi, Perl, PHP, Python, JavaScript, etc. Collect libraries of regular expressions for future use. Detailed tutorial.