From: james@...
Date: 2002-06-04T11:41:47+09:00
Subject: RE: regexp#options in 1.7.2

>
> |I wonder if Regexp#options should take an optional bit mask parameter.
> |Then you could query for, or omit, particular bit sets:
>
> These optimize bits highly depend on the implementation of regex
> engine.  For example, we already have alternative regex engine
> code-named "Oniguruma", which does not provide this bit.

Still, options returns an integer; to get the low-order bits for the more
stable values one needs to use some bit math:

  p ( re.options & Regexp::EXTENDED ).zero?  # See if EXTENDED is set

which is (perhaps marginally) easier/clearer like this:

  p ( re.options( Regexp::EXTENDED ).zero?  # See if EXTENDED is set

James

>
> 							matz.
>