How complete is Hat?

Key:
- = no support
+ = partial support
* = full support

Haskell'98
vs. Hat
ActualPlanned
20002002

Language constructs
modules***
lambda abstractions***
pattern matches***
guards***
if-then-else***
case expr of***
list comprehensions++*
monadic do++*
infix operators***
numeric literals+**
numeric sequences++*
n+k patterns---
Basic types
Bool***
Char***
List***
Tuples***
Int***
Integer-**
Float-**
Double-**
Rational-**
User types
data types***
type synonyms+**
newtypes-**
named fields-+*
type classes***
derived instances-**
strict types-+*
Haskell'98
vs. Hat
ActualPlanned
20002002

Input/output
single I/O streams***
file handling-+*
Libraries
Prelude+**
Ratio-**
Complex-**
Numeric-**
Ix-**
Array-**
List+**
Maybe+**
Char+**
Monad-**
IO-+*
Directory-+*
System-**
Time--*
Locale--*
CPUTime-**
Random-**
Platform Portability
machine and O/S***
other Haskell systems-+*
Non-Haskell'98 Extensions
primitive FFI-**
IOExtras library-**
multi-parameter TCs---
existentials---
concurrency---
parallelism---