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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2015-12-25 15:22:26 -08:00
parent 4a5b645d88
commit 31302ec851
7 changed files with 386 additions and 134 deletions
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5
src/ast/seq_decl_plugin.h
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@ -137,7 +137,7 @@ class seq_decl_plugin : public decl_plugin {
void match(psig& sig, unsigned dsz, sort* const* dom, sort* range, sort_ref& rng);
void match_left_assoc(psig& sig, unsigned dsz, sort* const* dom, sort* range, sort_ref& rng);
void match_right_assoc(psig& sig, unsigned dsz, sort* const* dom, sort* range, sort_ref& rng);
bool match(ptr_vector<sort>& binding, sort* s, sort* sP);
@ -221,7 +221,7 @@ public:
app* mk_char(char ch);
app* mk_concat(expr* a, expr* b) { expr* es[2] = { a, b }; return m.mk_app(m_fid, OP_SEQ_CONCAT, 2, es); }
app* mk_concat(expr* a, expr* b, expr* c) {
return mk_concat(mk_concat(a, b), c);
return mk_concat(a, mk_concat(b, c));
}
expr* mk_concat(unsigned n, expr* const* es) { if (n == 1) return es[0]; SASSERT(n > 1); return m.mk_app(m_fid, OP_SEQ_CONCAT, n, es); }
app* mk_length(expr* a) { return m.mk_app(m_fid, OP_SEQ_LENGTH, 1, &a); }
@ -278,6 +278,7 @@ public:
void get_concat(expr* e, expr_ref_vector& es) const;
expr* get_leftmost_concat(expr* e) const { expr* e1, *e2; while (is_concat(e, e1, e2)) e = e1; return e; }
expr* get_rightmost_concat(expr* e) const { expr* e1, *e2; while (is_concat(e, e1, e2)) e = e2; return e; }
};
class re {