Hi, when you use the square brackets, you're only matching a single character from the options you provide within it. In the above case, you are requesting a string that only consists of an uppercase or lowercase character and nothing else. Have a go at https://regex101.com/ to help you figure out which combination you will need. Consider what characters need to repeat, what different sorts of characters could... - Source: Reddit / about 2 months ago
Here ya go man: https://regex101.com/ this will take your troubles away. - Source: Reddit / about 2 months ago
Https://regex101.com/ is very helpful although most people will already know it. - Source: Reddit / about 2 months ago
There are a lot of great online regex tools out there. Try this one: https://regex101.com/. - Source: Reddit / about 2 months ago
Admittedly I'm no regex guru but there's sites that can help you build them like https://regex101.com - hopefully that'll get you going :). - Source: Reddit / about 2 months ago
RegExr - RegExr.com is an online tool to learn, build, and test Regular Expressions.
Expresso - The award-winning Expresso editor is equally suitable as a teaching tool for the beginning user of regular expressions or as a full-featured development environment for the experienced programmer with an extensive knowledge of regular expressions.
RegexBuddy - RegexBuddy is your perfect companion for working with regular expressions.
Regex Hero - Online Silverlight regular expression tester with instantaneous highlighting, C# and VB.NET code generation, code completion, regex analysis, benchmarking, and more.
Debuggex - Debuggex is an intuitive visual regular expression debugger, tester, and helper.
The Regex Coach - The Regex Coach is a graphical application for Windows which can be used to experiment with...