From: Brian Candler <b.candler@...>
Date: 2009-12-15T00:49:29+09:00
Subject: Re: Ruby 1.9 string slicing and StringScanner pointers

Robert Klemme wrote:
> I don't know StringScanner internals, but does this have to be so?  I
> mean, with $' you get the remainder of the string so when not using
> positions you could handle it that way at the expense of an additional
> String instance for each match.

Even if it did, I think the point remains that StringScanner#pos 
wouldn't be of much use if it gave a character offset, since str[n..m] 
is an expensive operation in ruby 1.9.

If all you want is the rest of the string, then StringScanner#post_match 
gives you that already, doesn't it? But I think the OP wanted to get the 
buffer between two arbitrary match positions.
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