112     std::string copy(in);  in Tokenize()  local
115     while (!copy.empty()) {  in Tokenize()
116         if (std::regex_search(copy, match, kStartLowercase)) matches.push_back(match.str(0));  in Tokenize()
117         if (std::regex_search(copy, match, kStartCapcase)) matches.push_back(match.str(0));  in Tokenize()
118         if (std::regex_search(copy, match, kStartUppercase)) matches.push_back(match.str(0));  in Tokenize()
119         if (std::regex_search(copy, match, kStartNumcase)) matches.push_back(match.str(0));  in Tokenize()
126             copy = copy.substr(maxmatch.length());  in Tokenize()
131             tmpVec.push_back(copy);  in Tokenize()
228     std::string copy(in);  in RTrimAll()  local
229     while (EndsWith(copy, suffix)) {  in RTrimAll()
230         copy = copy.substr(0, copy.size() - suffix.size());  in RTrimAll()
233     return copy;  in RTrimAll()
241     std::string copy(in);  in LTrimAll()  local
242     while (StartsWith(copy, prefix)) {  in LTrimAll()
243         copy = copy.substr(prefix.size());  in LTrimAll()
246     return copy;  in LTrimAll()