Regular expression to detect few non characters

Question

How do i do a regular expression that will allow everything except !@$%^&*()_+={}[]|\:";'<>,.?/ (If i need to detect more than these can I simply add them into the regexp later?)

I intend using this to check if these character are present in postal addresses a user submits. So if they were there, I could reject the address.

Thanks

Answer 1

You should include allowed characters instead of excluding almost everything :

[\w+-]*

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But if you want to really exclude those chars :

[^!@$%^&*()_+={}\[\]|\:";'<>,.?/]*

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Resources :

• regular-expressions.info - Character Classes or Character Sets