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add partial support for complementation of regular expressions. Handles case of complementing character ranges

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2016-02-12 15:59:33 +00:00
parent 9dbb8057ca
commit 94453033b6
4 changed files with 93 additions and 6 deletions
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1
src/ast/rewriter/seq_rewriter.h
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@ -96,6 +96,7 @@ class seq_rewriter {
br_status mk_re_concat(expr* a, expr* b, expr_ref& result);
br_status mk_re_union(expr* a, expr* b, expr_ref& result);
br_status mk_re_inter(expr* a, expr* b, expr_ref& result);
br_status mk_re_complement(expr* a, expr_ref& result);
br_status mk_re_star(expr* a, expr_ref& result);
br_status mk_re_plus(expr* a, expr_ref& result);
br_status mk_re_opt(expr* a, expr_ref& result);