require_lc_ctype
require_lc_ctype("en_US.ISO8859-1");
require_lc_ctype("en_US.ISO8859-15");
require_lc_ctype("en_US.UTF-8");
require_lc_ctype("C");
require_lc_ctype("C");
require_lc_ctype("ja_JP.eucJP");
require_lc_ctype("en_US.ISO8859-1");
require_lc_ctype("en_US.ISO8859-15");
require_lc_ctype("en_US.UTF-8");
require_lc_ctype("C");