From: 7rans <transfire@...>
Date: 2009-08-28T21:10:57+09:00
Subject: Re: I need a string#all_indices method--is there such a thing?



On Aug 28, 4:25 am, timr <timra...@gmail.com> wrote:
> In ruby you can use string#index as follows:
> str = "some text"
> str.index(/t/)
> =>5
>
> But what if I want to get all the indices for a regex in the string?
> Is there an string#all_indices method?

Facets has:

  def index_all(s, reuse=false)
    s = Regexp.new(Regexp.escape(s)) unless Regexp===s
    ia = []; i = 0
    while (i = index(s,i))
      ia << i
      i += (reuse ? 1 : $~[0].size)
    end
    ia
  end