Function trimSpaces

extern/happly/happly.h:1229–1235

namespace {

inline std::string trimSpaces(const std::string& input) {
  size_t start = 0;
  while (start < input.size() && input[start] == ' ') start++;
  size_t end = input.size();
  while (end > start && (input[end - 1] == ' ' || input[end - 1] == '\n' || input[end - 1] == '\r')) end--;
  return input.substr(start, end - start);
}

inline std::vector<std::string> tokenSplit(const std::string& input) {
  std::vector<std::string> result;