Why no RE match of A AND B?
Erik Max Francis
max at alcyone.com
Mon Mar 3 01:13:55 CET 2003
"Anders J. Munch" wrote:
> It can always be reformulated as an expression without an intersection
> ('&') operator. But not necessarily a simpler one.
> I've never understood either why the intersection operator is usually
> missing from regular expression implementations. Tradition?
Probably for the reason you mention: It can easily be reexpressed as
another regular expression, whether simpler or more complicated. That
isn't true in general, for, say, the | regular expression operator
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