RegexBuddy is your 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 actual data. Debug without guesswork by stepping through the actual matching process. Use the regex with source code snippets automatically adjusted to the particulars of your programming language. Collect and document libraries of regular expressions for future reuse. GREP (search-and-replace) through files and folders. Integrate RegexBuddy with your favorite searching and editing tools for instant access.
Download here --> Regex Buddy
or, wanna learn online? visit this page --> Learning Regex
Hope this information can help you which wanna learn Regex to optimize your Squid Proxy ^_^
14 hours ago