Function num_leading_spaces

tensorflow/core/framework/op_def_builder.cc:441–447

}

int num_leading_spaces(StringPiece s) {
  size_t i = 0;
  while (i < s.size() && s[i] == ' ') {
    ++i;
  }
  return i;
}

bool ConsumeDocNameColon(StringPiece* sp, StringPiece* out) {
  return Scanner(*sp)