82 void AppendNumberTo(std::string* str, uint64_t num) {  in AppendNumberTo()  argument
85   str->append(buf);  in AppendNumberTo()
88 void AppendEscapedStringTo(std::string* str, const Slice& value) {  in AppendEscapedStringTo()  argument
92       str->push_back(c);  in AppendEscapedStringTo()
97       str->append(buf);  in AppendEscapedStringTo()
250 std::string trim(const std::string& str) {  in trim()  argument
251   if (str.empty()) return std::string();  in trim()
253   size_t end = str.size() - 1;  in trim()
254   while (isspace(str[start]) != 0 && start < end) {  in trim()
257   while (isspace(str[end]) != 0 && start < end) {  in trim()
261     return str.substr(start, end - start + 1);  in trim()