bool smartParser1_verbose;

void smartParser1(S program) {

  // split into paragraphs and unindent

  LS paragraphs = map(s -> withoutLeadingLinesEmptyAfterTrim_autoUnindent(rtrim(s)), tok_splitAtEmptyLines(program));

  if (smartParser1_verbose) print("Got " + n2(paragraphs, "parapraph"));

  // print the parapraphs

  if (smartParser1_verbose) print(joinWithEmptyLines(map(s -> indentx("> ", s), paragraphs)));

  // throw away comment-only and quoted paragraphs (assume it's a title)

  LS paragraphs2 = antiFilter(paragraphs, s -> 

    isSingleLine(trim(s)) && isQuoted(trim(s)) || countJavaTokens(s) == 0

    || endsWith(rtrim(s), "----"));

  if (smartParser1_verbose) print("Got " + n2(paragraphs2, "filtered paragraph"));

  if (smartParser1_verbose) print(joinWithEmptyLines(map(s -> indentx("> ", s), paragraphs2)));

  // find fact paragraphs

  if (smartParser1_verbose) print(map allLinesAreUnindented(paragraphs2));

  Pair<LS> p1 = filterAntiFilter(s ->

    !isSingleLine(trim(s)) && allLinesAreUnindented(s), paragraphs2);

  LS multiFactParagraphs = p1.a, paragraphs3 = p1.b;

  for (S para : multiFactParagraphs)

    for (S s : tlft(para))

      addFactFromProgram(s);

  // find logic rules

  new LS paragraphs4;

  for (S para : paragraphs3) {

    PairS p = splitAtFirstDoubleArrow(javaTokWithBrackets(para));

    if (p == null) continue with paragraphs4.add(para);

    addLogicRule(new LogicRule(splitAtAmpersand2(p.a), p.b), para);

  }

  if (smartParser1_verbose) pnlStruct("Unparsed - assuming facts", paragraphs4);

  // assume the unparsed stuff consists of facts

  for (S para : paragraphs4)

    addFactFromProgram(para);

}