type t = char

val isAlnum = Basis.isalnum
val isAlpha = Basis.isalpha
val isBlank = Basis.isblank
val isCntrl = Basis.iscntrl
val isDigit = Basis.isdigit
val isGraph = Basis.isgraph
val isLower = Basis.islower
val isPrint = Basis.isprint
val isPunct = Basis.ispunct
val isSpace = Basis.isspace
val isUpper = Basis.isupper
val isXdigit = Basis.isxdigit
val toLower = Basis.tolower
val toUpper = Basis.toupper