Li Chen <chen_li3 / yahoo.com> wrote:

> I try #scan(pattern) but it doesn't return the
> position for each match. I wonder how other handle this problem.

It doesn't "return" the position but it does capture the position.
 
s = 'ccccatgggctacatgggtcat'
s.scan('cat') {puts Regexp.last_match.begin(0)}

The last regex match is always hanging around waiting for you to ask
about it.... Hope that helps - m.

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