From: Li Chen <chen_li3@...>
Date: 2009-01-25T23:33:05+09:00
Subject: Re: how to find the position of each match within a string

David A. Black wrote:
> You can examine the $~ global MatchData object, in a couple of ways:
> 
> irb(main):003:0> "ello-hello".scan('e') do |match|
> irb(main):004:1*   p $~.pre_match.size
> irb(main):005:1> end
> 0
> 6
> => "ello-hello"
> irb(main):006:0> "ello-hello".scan('e') do |match|
> irb(main):007:1*   p $~.offset(0)[0]
> irb(main):008:1> end
> 0
> 6
> => "ello-hello

Hi David,

Thanks.

I go back and read the chapter about MatchData. And it helps me a lot.

Li
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