unicode::tolower, unicode::toupper, unicode::totitle

#include <courier-unicode.h>

std::string unicode::tolower(const std::string &string);

std::string unicode::tolower(const std::string &string, const std::string &charset);

std::u32string unicode::tolower(const std::u32string_view &u);

std::string unicode::toupper(const std::string &string);

std::string unicode::toupper(const std::string &string, const std::string &charset);

std::u32string unicode::toupper(const std::u32string_view &u);

std::string unicode::totitle(const std::string &string);

std::string unicode::totitle(const std::string &string, const std::string &charset);

std::u32string unicode::totitle(const std::u32string_view &u);

These functions convert the string parameter, in charset or unicode_default_chset(3), to unicode, replace each character with unicode_lc(3), or unicode_uc(3) or unicode_tc(3), then convert it back to the same character set, returning the resulting string.

Passing a const std::u32string_view & directly also converts it accordingly, returning the converted unicode string.

courier-unicode(7).

Sam Varshavchik