Function isLowercaseKebabString

lib/validator/component_name.cpp:65–73

words ::= ( '-' ) first-word ::= [a-z] [0-9a-z] word ::= [0-9a-z]+

// first-word ::= [a-z] [0-9a-z]*
// word       ::= [0-9a-z]+
bool isLowercaseKebabString(std::string_view Input) {
  if (Input.empty() || !islower(Input[0]))
    return false;
  for (char C : Input) {
    if (C != '-' && !islower(C) && !isdigit(C))
      return false;
  }
  return Input.back() != '-' && Input.find("--"sv) == Input.npos;
}

bool isEOF(std::string_view Input) { return Input.empty(); }