On Wed, 30 Jan 2002 17:45:58 +0000, Graham Barr wrote:
> On Wed, Jan 30, 2002 at 09:32:49AM -0800, Brent Dax wrote:
> > # rx_setprops P0, "i", 2
> > # branch $start0
> > # $advance:
> > # rx_advance P0, $fail
> > # $start0:
> > # rx_literal P0, "a", $advance
> > #
> > # First, we set the rx engine to case-insensitive. Why is that bad? It's
> > # setting a runtime property for what should be compile-time
> > # unicode-character-kung-fu. Assuming your "CPU" knows what the gritty
> > # details of unicode in the first place just feels wrong, but I digress.
> >
> > That "i" does a once-off case-folding operation on the target string.
> > All other input to the engine MUST already be case-folded for speed.
>
> Hm, is that going to work ? What about a rx like /^a(?i:b)C/ where the
> case insensitivity only applies to part of the pattern ?
Or worse, in /^a(b)c/i, where you want to capture the original character,
not the case-folded version?
--
Peter Haworth [EMAIL PROTECTED]
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