Question

i have some bad words set like :

'aaa','bbb','ccc'

( bad words can be also , “john”,”paul”,”ringo”) ( sorry @cyilan)

i dont want to allow bad word immediately followed by another/same bad word

aaa can be followed by a non-bad word and then to be followed by a bad word :

  ...aaaRoyibbb...  //ok
  ...cccRoyiaaa...  //ok

   ...aaabbb...// NOT OK
   ...cccbbb...// NOT OK
   ...cccccc...// NOT OK

a bad word is not allowed to be immediately followed with another/same bad word

I’ve tried some regexps but with no success..

any help will be much appreciated

Answer 1

var str = "...aaabbb...";
if(!str.test(/(?:aaa|bbb|ccc){2}/)){
    // passed
}

Chat revealed that what OP really wanted was:

/^(?!(?:aaa|bbb|ccc)|.*(?:aaa|bbb|ccc){2}|.*(?:aaa|bbb|ccc)$)/

But really really:

^(?!(?:aaa|bbb|ccc)\b|.*\b(?:aaa|bbb|ccc)\s+(?:aaa|bbb|ccc)\b|.*\b(?:aaa|bbb|cc‌​c)$)