Filtering using Regular Expressions

Question

I am having a filter for the following regular expressions

[^@()[]\;:,<>]+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/

I need to negate the following special charters before the @domain.com

@()[]\;:",<

any suggestions??

Answer 1

Try escaping the ] in the character class.

[^@()[\]\;:,<>]+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/
      ^^

If not escaped the ] will be treated incorrectly as the end of the character class.

Since this has been tagged as Java, remember that you need to escape using \\ and not just \ .