Char package:hedgehog
The character type
Char is an enumeration whose values
represent Unicode (or equivalently ISO/IEC 10646) code points (i.e.
characters, see
http://www.unicode.org/ for details). This set
extends the ISO 8859-1 (Latin-1) character set (the first 256
characters), which is itself an extension of the ASCII character set
(the first 128 characters). A character literal in Haskell has type
Char.
To convert a
Char to or from the corresponding
Int value
defined by Unicode, use
toEnum and
fromEnum from the
Enum class respectively (or equivalently
ord and
chr).
Check if a character is one of the noncharacters '65534', '65535'.
Read a character from the standard input device (same as
hGetChar stdin).
Write a character to the standard output device (same as
hPutChar stdout).
utility function converting a
Char to a show function that
simply prepends the character unchanged.