From: Martin DeMello <martindemello@...>
Date: 2006-12-07T06:44:51+09:00
Subject: Re: Get Number of regex matches

On 12/7/06, Max Muermann <ruby@muermann.org> wrote:
> On 12/7/06, Ingo Weiss <ingoweiss@gmail.com> wrote:
> > Hi,
> >
> > how can I get the NUMBER of matches for a regular expression in a given
> > string?
> >
> > For example: for string 'Banana' and regex /a/ I should get '3'
> > (matches)
> >
>
> Here's one way (but there are probably better ones):
>
> "Banana".scan(/a/).size
> => 3

This one skips the intermediate array construction in return for some
clunkiness:

i = 0
banana.scan(/a/) { i += 1}
i

martin