27 std::string
to_utf8(
const std::string& str,
const std::string& charset);
35 std::u16string
to_utf16(
const std::string& str,
const std::string& charset);
43 std::string
to_utf8(
const std::u16string& str);
51 std::u16string
to_utf16(
const std::string& str);
59 std::string
tolower(
const std::string& str);
67 std::string
toupper(
const std::string& str);
76 std::string
foldcase(
const std::string& str);
86 std::string
transform(
const std::string& str,
const std::string&
id);
97 std::string
remove_if(
const std::string& str,
98 std::function<
bool(uint32_t)> pred);
104 uint64_t
length(
const std::string& str);
110 bool isalpha(uint32_t codepoint);
116 bool isblank(uint32_t codepoint);