Takaaki Tateishi <ttate / kt.jaist.ac.jp> wrote:
> [ruby-dev:18887] String#substr?
> 
>  Takaaki Tateishi proposed a method for checking if a sub-string is exactly
>  same as other sub-string without creating a new string object. The method
>  suppresses the excessive cost of creating new strings.
>  Matz approved the idea, however rejected its method name 'substr?'.

What's the difference between this and String#include? ?

martin