[a-z0-9-_] ?((\\D)|(\\W)|(\\S)|(\\H)|(\\B)|(\\Q)|(\\E))*

I want the pattern to reapeat ex:

valid : abc\D\Wabc, abc, \W, \Wabc, \E\D,\E\Dsd\B

for now only the regex order is valid

CodePudding user response：

You can validate them with

/^(?:[a-z\d_-]|\\[DWSHBQE])*$/

• ^ Start of a string
• (?: Non-capturing group
  • [a-z\d_-]|\\[DWSHBQE] Match one of lowercase letters, digits, - and _. Or, \ and one of D, W, S, H, B, Q, E
• ) Close non-capturing group
• * The previous match zero or more times
• $ End of a string

Also, see the demo