CODEWITHSUNDEEP
regexformsvalidation
snookian
snookian

Reputation: 873

Regular Expressions - Exclude characters

I am trying to use regulare expressions with a formvalidator.net to validate a form but I am struggling to under stand regular expressions,I have had a look at some websites but it is still baffling.

Basically I want to validate a field so that when a user enter something it will chack that the word or entry doesnt contain certain characters. So for example I don't want '!name' or 'this ! name' to be accepted.

using regexp for testing I have created this expression ([a-zA-Z\+\&\,\.\-\(\)\d][^<>%$!]+) which excludes those characters but in my form validator it will still accept '!name' or 'this ! name'

Can anyone point me in the right direction? I feel like I'm typing stuff in and gettign nowhere.

Ian

Upvotes: 2

Views: 39

Answers (1)

Mr Mystery Guest
Mr Mystery Guest

Reputation: 1484

Basically I think you want to either decide what characters you don't want OR what characters you do. Not both.

I think this is what your after:

^[^<>%$!]+$

See it working here

Upvotes: 1

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