This is a simplified version of the GNU Grep. Search a RegExp on a file that contain all alphanumeric characters. Use special symbols like @ and # to extend the search. Now you can set Case Sensitive option and ignore withespaces during the search.
glark offers grep-like searching of text files, with very powerful, complex regular expressions (e.g., "/foo\w+/ and /bar[^\d]*baz$/ within 4 lines of each other"), as well as highlighting of matches.