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I'm struggling with REGEX and require it for a program.
The input require only alphanumerical keys and also (allow only comma,:,space,/,- in special chars)
I have tried = (^[a-zA-Z0-9,:\S/-]*$) As far as i understand and please correct me if I'm wrong. a-zA-Z0-9 - The alphanumerical keys. ,: - Comma and colon \S - Space / - I'm not sure how to represent a forward slash thus i escaped it - - Dash also not sure if it is needed to escape it.
Would be appreciated if this can be corrected and also a explanation of each part.
Thanks in advance.
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You can use this regex /^[ A-Za-z0-9_@./#&+-]*$/.
The regex \w is equivalent to [A-Za-z0-9_] , matches alphanumeric characters and underscore.
An alphanumeric password contains numbers, letters, and special characters (like an ampersand or hashtag). In theory, alphanumeric passwords are harder to crack than those containing just letters. But they can also be harder to both create and remember.
You can replace a-zA-Z0-9 with just \\w which is short for [a-zA-Z_0-9]. Furthermore, \\S is any character, but not a whitespace, you should use a \\s instead. You don't need to escape /, and even - if it's the first one or the last one, because if it's placed between two characters it could be interpreted as range and you'll have to escape it. So, you can make your regex like ^([\w,:\s/-]*)$
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