[REBOL] Parse does not have "not" match type.
From: bhandley:zip:au at: 30-Jul-2000 12:07
I was playing around with the idea of using rebol to convert EBNF to Rebol
parse rules. A strange occupation maybe, but I thought it might be useful
one day. Anyway, I found a rule in EBNF, as described in XML1.0 -
http://www.w3.org/TR/REC-xml.html, for which I believe there is no
equivalent in Rebol - and I cannot see how it can be worked around.
It is the A - B rule which says "matches any string that matches A but does
not match B".
I looked into the use of this rule in the xml spec and found that it does
not relate simply to characters, so I cannot just do something with
complement
.
Is there a way, or no?
Thanks,
Brett.
