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fix is_string_term()
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@ -275,18 +275,12 @@ public:
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bool is_string_term(expr const * n) const {
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sort * s = get_sort(n);
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return is_sort_of(s, m_fid, _STRING_SORT);
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return (u.is_seq(s) && u.is_string(s));
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}
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bool is_non_string_sequence(expr const * n) const {
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if (is_string_term(n))
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return false;
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sort * s = get_sort(n);
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if (u.is_seq(s) && !u.is_string(s)) {
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return true;
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}
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return false;
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return (u.is_seq(s) && !u.is_string(s));
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}
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MATCH_BINARY(is_concat);
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