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add note that current re.complement is non-standard
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
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@ -125,6 +125,7 @@ eautomaton* re2automaton::re2aut(expr* e) {
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}
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}
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else if (u.re.is_complement(e, e0)) {
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// TBD non-standard semantics of complementation.
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if (u.re.is_range(e0, e1, e2) && u.str.is_string(e1, s1) && u.str.is_string(e2, s2) &&
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s1.length() == 1 && s2.length() == 1) {
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unsigned start = s1[0];
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