regex expression for alpha numeric and some special characters

Question

I need a regex expression for pattern validation that should allow only alphanumeric words and some special characters that are !@#$%^&*()-_

I tried that expression but it didn't work

Validators.pattern("^[a-zA-Z0-9!@#$%^*-_&()\\\"]*$")

it allows plus "+" and dot "." and also other special characters that i not mentioned — Raza Ellahi, Dec 26 '18 at 07:46
Just check my answer. It will not allow other than provided spacial characters. — Prashant Deshmukh....., Dec 26 '18 at 07:49
Please try this: `^[\w!@#$%^\-_&()\\]*$` where `\w` stands for alphanumeric chars — enxaneta, Dec 26 '18 at 08:11
Possible duplicate of [How to match hyphens with Regular Expression?](https://stackoverflow.com/questions/4068629/how-to-match-hyphens-with-regular-expression) — The fourth bird, Dec 26 '18 at 09:07

score 1 · Accepted Answer · answered Dec 26 '18 at 08:07

Your problem is the *-_ inside your character set. This is treated as a range of all the characters from * to _ i.e. *, +, , ... ], ^, _ (I've left out the rest of the characters for brevity). You need to either put the - at the beginning or end of the set, or escape it within the set e.g.

Validators.pattern("^[a-zA-Z0-9!@#$%^*_&()\\\"-]*$")

regex expression for alpha numeric and some special characters

1 Answers1