void InternDataHandler::convert()

in src/data.cpp [93:152]
52 lines of code
11 McCabe index (conditional complexity)

void InternDataHandler::convert(
    const ParseResults& example,
    ParseResults& rslt) const {

  rslt.weight = example.weight;
  rslt.LHSTokens.clear();
  rslt.RHSTokens.clear();

  rslt.LHSTokens.insert(rslt.LHSTokens.end(),
      example.LHSTokens.begin(), example.LHSTokens.end());

  if (args_->trainMode == 0) {
    // lhs is the same, pick one random label as rhs
    assert(example.LHSTokens.size() > 0);
    assert(example.RHSTokens.size() > 0);
    auto idx = rand() % example.RHSTokens.size();
    rslt.RHSTokens.push_back(example.RHSTokens[idx]);
  } else {
    assert(example.RHSTokens.size() > 1);
    if (args_->trainMode == 1) {
      // pick one random label as rhs and the rest is lhs
      auto idx = rand() % example.RHSTokens.size();
      for (unsigned int i = 0; i < example.RHSTokens.size(); i++) {
        auto tok = example.RHSTokens[i];
        if (i == idx) {
          rslt.RHSTokens.push_back(tok);
        } else {
          rslt.LHSTokens.push_back(tok);
        }
      }
    } else
    if (args_->trainMode == 2) {
      // pick one random label as lhs and the rest is rhs
      auto idx = rand() % example.RHSTokens.size();
      for (unsigned int i = 0; i < example.RHSTokens.size(); i++) {
        auto tok = example.RHSTokens[i];
        if (i == idx) {
          rslt.LHSTokens.push_back(tok);
        } else {
          rslt.RHSTokens.push_back(tok);
        }
      }
    } else
    if (args_->trainMode == 3) {
      // pick two random labels, one as lhs and the other as rhs
      auto idx = rand() % example.RHSTokens.size();
      unsigned int idx2;
      do {
        idx2 = rand() % example.RHSTokens.size();
      } while (idx2 == idx);
      rslt.LHSTokens.push_back(example.RHSTokens[idx]);
      rslt.RHSTokens.push_back(example.RHSTokens[idx2]);
    } else
    if (args_->trainMode == 4) {
      // the first one as lhs and the second one as rhs
      rslt.LHSTokens.push_back(example.RHSTokens[0]);
      rslt.RHSTokens.push_back(example.RHSTokens[1]);
    }
  }
}