Added nanorc for popular functional language haskell

haskell.nanorc

@@ -0,0 +1,31 @@
+syntax "haskell" "\.hs$"
+
+## Keywords
+color red "[ ](as|case|of|class|data|default|deriving|do|forall|foreign|hiding|if|then|else|import|infix|infixl|infixr|instance|let|in|mdo|module|newtype|qualified|type|where)[ ]"
+color red "(^data|^foreign|^import|^infix|^infixl|^infixr|^instance|^module|^newtype|^type)[ ]"
+color red "[ ](as$|case$|of$|class$|data$|default$|deriving$|do$|forall$|foreign$|hiding$|if$|then$|else$|import$|infix$|infixl$|infixr$|instance$|let$|in$|mdo$|module$|newtype$|qualified$|type$|where$)"
+
+## Various symbols
+color cyan "(\||@|!|:|_|~|=|\\|;|\(\)|,|\[|\]|\{|\})"
+
+## Operators
+color magenta "(==|/=|&&|\|\||<|>|<=|>=)"
+
+## Various symbols
+color cyan "(->|<-)"
+color magenta "\.|\$"
+
+## Data constructors
+color magenta "(True|False|Nothing|Just|Left|Right|LT|EQ|GT)"
+
+## Data classes
+color magenta "[ ](Read|Show|Enum|Eq|Ord|Data|Bounded|Typeable|Num|Real|Fractional|Integral|RealFrac|Floating|RealFloat|Monad|MonadPlus|Functor)"
+
+## Strings
+color yellow ""[^\"]*""
+
+## Comments
+color green "--.*"
+color green start="\{-" end="-\}"
+
+color brightred "undefined"