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seq

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2015-12-08 21:03:28 -08:00
parent 24de0a9b90
commit 94bd2fdbe4
7 changed files with 285 additions and 78 deletions
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6
src/ast/seq_decl_plugin.h
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@ -74,6 +74,7 @@ enum seq_op_kind {
_OP_STRING_TO_REGEXP,
_OP_STRING_CHARAT,
_OP_STRING_SUBSTR,
_OP_SEQ_SKOLEM,
LAST_SEQ_OP
};
@ -155,6 +156,11 @@ public:
bool is_string(sort* s) const { return is_seq(s) && seq.is_char(s->get_parameter(0).get_ast()); }
bool is_seq(sort* s) const { return is_sort_of(s, m_fid, SEQ_SORT); }
bool is_re(sort* s) const { return is_sort_of(s, m_fid, RE_SORT); }
bool is_seq(expr* e) const { return is_seq(m.get_sort(e)); }
bool is_re(expr* e) const { return is_re(m.get_sort(e)); }
app* mk_skolem(symbol const& name, unsigned n, expr* const* args, sort* range);
bool is_skolem(expr const* e) const { return is_app_of(e, m_fid, _OP_SEQ_SKOLEM); }
class str {
seq_util& u;