From: Bertram Scharpf <lists@...>
Date: 2009-08-28T18:13:56+09:00
Subject: Re: I need a string#all_indices method--is there such a thing?

Hi,

Am Freitag, 28. Aug 2009, 17:40:05 +0900 schrieb timr:
> Scan gives you the matches, not the indices (which is what I need).
> 
> >> "this is a test for scan".scan(/t/)
> => ["t", "t", "t"]

There's a trick to do it with String#scan:

  a = []
  "this is a test for scan".scan( /t/) { a.push $`.length }
  a

This does not work when the matches overlap.

  "banana".scan /ana/       #=> ["ana"]

Bertram


-- 
Bertram Scharpf
Stuttgart, Deutschland/Germany
http://www.bertram-scharpf.de