[Uw-ruby] I can't seem to get grep to workout with regular strings.

[Ryan Davis]

On Nov 12, 2007, at 21:22 , Feng Tien wrote:

> [...]
>
> Using the grep method.
>
> When I use a regular string rather than a regular expression,  
> nothing is
> found?

Correct:

% ri grep
-------------------------------------------------------- Enumerable#grep
      enum.grep(pattern)                   => array
      enum.grep(pattern) {| obj | block }  => array

It takes a regexp. You can make a regex from a string either by  
interpolation /#{...}/ or via Regexp.new.

> BTW, for this grep program, it's suppose to output each line that  
> has the
> word you're searching for right? Not do a count how many instances?

Correct. it is to act pretty much the same as regular grep, but  
awesomer.