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prep for pragmas

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This commit is contained in:
Nikolaj Bjorner 2022-05-09 11:18:15 -07:00
parent 6670cf0b65
commit dcc01b874a
10 changed files with 124 additions and 78 deletions
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27
src/sat/dimacs.cpp
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@ -112,6 +112,27 @@ static void read_clause(Buffer & in, std::ostream& err, sat::literal_vector & li
}
}
template<typename Buffer>
static void read_pragma(Buffer & in, std::ostream& err, std::string& p) {
skip_whitespace(in);
if (*in != 'p')
return;
++in;
while (*in == ' ')
++in;
while (true) {
if (*in == EOF)
return;
if (*in == '\n') {
++in;
return;
}
p.push_back(*in);
++in;
}
}
template<typename Buffer>
static bool parse_dimacs_core(Buffer & in, std::ostream& err, sat::solver & solver) {
sat::literal_vector lits;
@ -156,7 +177,9 @@ namespace dimacs {
sat::status_pp pp(r.m_status, p.th);
switch (r.m_tag) {
case drat_record::tag_t::is_clause:
return out << pp << " " << r.m_lits << " 0\n";
if (!r.m_pragma.empty())
return out << pp << " " << r.m_lits << " 0 p " << r.m_pragma << "\n";
return out << pp << " " << r.m_lits << " 0\n";
case drat_record::tag_t::is_node:
return out << "e " << r.m_node_id << " " << r.m_name << " " << r.m_args << "0\n";
case drat_record::tag_t::is_sort:
@ -280,6 +303,7 @@ namespace dimacs {
try {
loop:
skip_whitespace(in);
m_record.m_pragma.clear();
switch (*in) {
case EOF:
return false;
@ -304,6 +328,7 @@ namespace dimacs {
theory_id = read_theory_id();
skip_whitespace(in);
read_clause(in, err, m_record.m_lits);
read_pragma(in, err, m_record.m_pragma);
m_record.m_tag = drat_record::tag_t::is_clause;
m_record.m_status = sat::status::th(false, theory_id);
break;