Does Ruby regular expression have a not match operator like “!~” in Perl?

Question

I just want to know whether ruby regex has a not match operator just like !~ in perl. I feel it\'s inconvenient to use (?!xxx)or (?

Answer 1

Back in perl, 'foobar' !~ /bar/ was perfectly perlish to test that the string doesn't contain "bar".

In Ruby, particularly with a modern style guide, I think a more explicit solution is more conventional and easy to understand:

input = 'foobar'

do_something unless input.match?(/bar/) 

needs_bar = !input.match?(/bar/)

That said, I think it would be spiffy if there was a .no_match? method.