According to Dan Sugalski:
> At 2:44 PM +0000 9/3/04, Chip Salzenberg wrote:
> >According to [EMAIL PROTECTED] (Dan Sugalski):
> >>*) extract substring
> >
> >Rather than that, wouldn't you prefer to make "substring of target
> >string" the actual target of all these?
> 
> Only if the resulting substring'd be used in the match.  Otherwise
> you're better off with just offset or offset/length, and defer
> substring extraction until the very end [...]

That's what I meant, e.g.:

  * find {first|last} instance of string   in [offset/length of] string
  * find {first|last} character of class X in [offset/length of] string

etc.
-- 
Chip Salzenberg         - a.k.a. -        <[EMAIL PROTECTED]>
  "Persistence in one opinion has never been considered
  a merit in political leaders." --Marcus Tullius Cicero

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