37 std::vector<std::string> Split(const std::string& s,  in Split()  argument
46     found = s.find_first_of(delimiters, base);  in Split()
47     result.push_back(s.substr(base, found - base));  in Split()
48     if (found == s.npos) break;  in Split()
55 std::vector<std::string> Tokenize(const std::string& s, const std::string& delimiters) {  in Tokenize()  argument
62     size_t base = s.find_first_not_of(delimiters, end);  in Tokenize()
63     if (base == s.npos) {  in Tokenize()
66     end = s.find_first_of(delimiters, base);  in Tokenize()
67     result.push_back(s.substr(base, end - base));  in Tokenize()
73 std::string Trim(const std::string& s) {  in Trim()  argument
74   return Trim(std::string_view(s));  in Trim()
91 bool StartsWith(std::string_view s, std::string_view prefix) {  in StartsWith()  argument
92   return s.substr(0, prefix.size()) == prefix;  in StartsWith()
95 bool StartsWith(std::string_view s, char prefix) {  in StartsWith()  argument
96   return !s.empty() && s.front() == prefix;  in StartsWith()
99 bool StartsWithIgnoreCase(std::string_view s, std::string_view prefix) {  in StartsWithIgnoreCase()  argument
100   return s.size() >= prefix.size() && strncasecmp(s.data(), prefix.data(), prefix.size()) == 0;  in StartsWithIgnoreCase()
103 bool EndsWith(std::string_view s, std::string_view suffix) {  in EndsWith()  argument
104   return s.size() >= suffix.size() && s.substr(s.size() - suffix.size(), suffix.size()) == suffix;  in EndsWith()
107 bool EndsWith(std::string_view s, char suffix) {  in EndsWith()  argument
108   return !s.empty() && s.back() == suffix;  in EndsWith()
111 bool EndsWithIgnoreCase(std::string_view s, std::string_view suffix) {  in EndsWithIgnoreCase()  argument
112   return s.size() >= suffix.size() &&  in EndsWithIgnoreCase()
113          strncasecmp(s.data() + (s.size() - suffix.size()), suffix.data(), suffix.size()) == 0;  in EndsWithIgnoreCase()
120 std::string StringReplace(std::string_view s, std::string_view from, std::string_view to,  in StringReplace()  argument
122   if (from.empty()) return std::string(s);  in StringReplace()
127     std::string_view::size_type pos = s.find(from, start_pos);  in StringReplace()
130     result.append(s.data() + start_pos, pos - start_pos);  in StringReplace()
135   result.append(s.data() + start_pos, s.size() - start_pos);  in StringReplace()