CODEWITHSUNDEEP
javascriptregex
splincool
splincool

Reputation: 151

Regex line in js

please help I have the regex line ^((?![<>=^@#]).)*$ which checking not ordinary symbols in an input field, it's ok but I need to add for this line one more condition , my line need to have vs.

For example when we have the name of sport game like this Patriots vs. Tigers

How can I complete my ^((?![<>=^@#]).)*$ condition and add rule for checking vs. in line (input field must have vs.) ?

It will be so cool if conditional also check spaces around vs. at left and at right, because for example Patriotsvs.Tigers is not good and need to show error also

Upvotes: 0

Views: 60

Answers (2)

JonM
JonM

Reputation: 1374

You can use look aheads with the start anchor to effectively use multiple conditions. Here is something that should work for you:

^(?=((?![<>=^@#]).)*$)(?=.*?\svs\.\s).*$

Will match:

thing vs. another
Patriots vs. Tigers

Won't match:

th%^hg vs. another
thing another
thingvs.another

Upvotes: 0

Mike Samuel
Mike Samuel

Reputation: 120496

I think what you want is 

/^[^<>=^@#]*?\bvs\.[^<>=^@#]*$/

which blacklists the characters [<>=^@#] and requires the literal text "vs." somewhere in the string.

That character blacklist is probably insufficient if you're trying to only approve inputs that won't lead to SQL-injection or XSS. Please consider using a stock input filtering/escaping system with this.

Upvotes: 1

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