/**
* *************************************************************** Compute binding and proof from
* E's response
*/
public static TPTP3ProofProcessor parseProofOutput(ArrayList<String> lines, KB kb) {
TPTP3ProofProcessor tpp = new TPTP3ProofProcessor();
try {
boolean inProof = false;
boolean finishAnswersTuple = false;
String line;
Iterator<String> it = lines.iterator();
while (it.hasNext()) {
line = it.next();
if (line.indexOf("SZS output start") != -1) {
inProof = true;
line = it.next();
}
if (line.indexOf("SZS status") != -1) {
tpp.status = line.substring(15);
}
if (line.indexOf("SZS answers") != -1) {
if (!finishAnswersTuple) {
tpp.processAnswers(line.substring(20).trim());
finishAnswersTuple = true;
}
}
if (inProof) {
if (line.indexOf("SZS output end") != -1) {
inProof = false;
} else {
ProofStep ps = tpp.parseProofStep(line);
if (ps != null) {
tpp.proof.add(ps);
}
}
}
}
} catch (Exception ex) {
System.out.println(ex.getMessage());
}
// remove unnecessary steps, eg: conjectures, duplicate trues
tpp.proof = ProofStep.removeUnnecessary(tpp.proof);
tpp.proof = ProofStep.removeDuplicates(tpp.proof);
// find types for skolem terms
findTypesForSkolemTerms(tpp, kb);
return tpp;
}
/**
* *************************************************************** Parse a step like the following
* into its constituents fof(c_0_5, axiom, (s__subclass(s__Artifact,s__Object)), c_0_3).
*
* <p>fof(c_0_2, negated_conjecture, (~(?[X1]:(s__subclass(X1,s__Object)&~$answer(esk1_1(X1))))),
* inference(assume_negation,[status(cth)],[inference(add_answer_literal,[status(thm)],[c_0_0,
* theory(answers)])])).
*/
public ProofStep parseProofStep(String line) {
if (StringUtil.emptyString(line)) return null;
ProofStep ps = new ProofStep();
// System.out.println("Info in TPTP3ProofProcessor.parseProofStep(): " + line);
int paren = line.indexOf("(");
if (paren == -1) {
System.out.println("Error in TPTP3ProofProcessor.parseProofStep() bad format: " + line);
return null;
}
String type = line.substring(0, paren);
if (!line.endsWith(").")) {
System.out.println("Error in TPTP3ProofProcessor.parseProofStep() bad format: " + line);
return null;
}
String withoutWrapper = line.substring(paren + 1, line.length() - 2);
int comma1 = withoutWrapper.indexOf(",");
String id = withoutWrapper.substring(0, comma1).trim();
// System.out.println("ID : " + id);
Integer intID = new Integer(idCounter++);
idTable.put(id, intID);
ps.number = intID;
int comma2 = withoutWrapper.indexOf(",", comma1 + 1);
String formulaType = withoutWrapper.substring(comma1 + 1, comma2).trim();
ps.formulaType = formulaType;
// System.out.println("type : " + formulaType);
String rest = withoutWrapper.substring(comma2 + 1).trim();
int statementEnd =
StringUtil.findBalancedParen(
rest.indexOf("("), rest); // startIndex = index_of_first_"(", instead of 0;
// TODO: check if exists "="
if (statementEnd == rest.length() - 1) // sepecial case: rest = "s__Class30_1=s__Reptile,
// file('/var/folders/s4/38700c8541z9h0t0sy_6lmk40000gn/T//epr_diiVH1', i_0_23)"
statementEnd = rest.indexOf(","); // expected: "foo(s__Class30_1,s__Reptile),
// file('/var/folders/s4/38700c8541z9h0t0sy_6lmk40000gn/T//epr_diiVH1', i_0_23)"
String stmnt = trimParens(rest.substring(0, statementEnd + 1).trim());
// System.out.println("stmnt : " + stmnt);
// line = line.replaceAll("\\$answer\\(","answer(");
// System.out.println("after remove $answer: " + line);
StringReader reader = new StringReader(line);
// kif = TPTP2SUMO.convert(reader, false);
try {
TPTPParser tptpP = TPTPParser.parse(new BufferedReader(reader));
// System.out.println(tptpP.Items.get(0));
Iterator<String> it = tptpP.ftable.keySet().iterator();
while (it.hasNext()) {
String tptpid = it.next();
TPTPFormula tptpF = tptpP.ftable.get(tptpid);
stmnt = TPTP2SUMO.convertType(tptpF, 0, 0, true).toString();
}
} catch (Exception e) {
System.out.println("Error in TPTP3ProofProcessor.parseProofStep(): " + e.getMessage());
e.printStackTrace();
System.out.println("with input: " + line);
}
// System.out.println("KIF stmnt : " + stmnt);
ps.axiom = stmnt;
String supportId = rest.substring(statementEnd + 2, rest.length()).trim();
// System.out.println("supportID: " + supportId);
// add an inference type
ps.inferenceType = getInferenceType(supportId.trim());
ps.premises.addAll(parseSupports(supportId.trim()));
return ps;
}
