Function LoadHexLines

tests/ts-utf8-conversion.cpp:154–185

#endif

std::vector<std::string> LoadHexLines(const char *a_path) {
  std::ifstream in(a_path);
  if (!in.is_open()) {
    FailMissingTestData(a_path);
  }
  std::vector<std::string> payloads;
  std::string line;
  while (std::getline(in, line)) {
    if (line.empty() || line[0] == '#') {
      continue;
    }
    if (line.size() % 2 != 0) {
      continue;
    }
    std::string bytes;
    bytes.reserve(line.size() / 2);
    bool ok = true;
    for (size_t i = 0; i < line.size(); i += 2) {
      if (!std::isxdigit((unsigned char)line[i]) ||
          !std::isxdigit((unsigned char)line[i + 1])) {
        ok = false;
        break;
      }
      char hex[3] = {line[i], line[i + 1], '\0'};
      bytes.push_back((char)std::strtoul(hex, nullptr, 16));
    }
    if (ok) {
      payloads.push_back(bytes);
    }
  }
  return payloads;
}

bool DecodeUtf8Sequence(const std::string &a_utf8,
                        std::vector<char32_t> &a_cps) {