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add support for re.nostr, re.all, fix bug in disequality handling of sequences, update signature of loop to handle integer arguments and variable arguments

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2016-01-14 10:56:03 +01:00
parent a81c7c48d0
commit de9c959241
5 changed files with 149 additions and 40 deletions
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5
src/ast/seq_decl_plugin.h
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@ -136,6 +136,7 @@ class seq_decl_plugin : public decl_plugin {
symbol m_charc_sym;
sort* m_string;
sort* m_char;
sort* m_re;
void match(psig& sig, unsigned dsz, sort* const* dom, sort* range, sort_ref& rng);
@ -297,6 +298,8 @@ public:
app* mk_star(expr* r) { return m.mk_app(m_fid, OP_RE_STAR, r); }
app* mk_plus(expr* r) { return m.mk_app(m_fid, OP_RE_PLUS, r); }
app* mk_opt(expr* r) { return m.mk_app(m_fid, OP_RE_OPTION, r); }
app* mk_loop(expr* r, unsigned lo);
app* mk_loop(expr* r, unsigned lo, unsigned hi);
bool is_to_re(expr const* n) const { return is_app_of(n, m_fid, OP_SEQ_TO_RE); }
bool is_concat(expr const* n) const { return is_app_of(n, m_fid, OP_RE_CONCAT); }
@ -318,7 +321,7 @@ public:
MATCH_UNARY(is_plus);
MATCH_UNARY(is_opt);
bool is_loop(expr const* n, expr*& body, unsigned& lo, unsigned& hi);
bool is_loop(expr const* n, expr*& body, unsigned& lo);
};
str str;
re re;