Here is a type taken from the tutorial:
> data Colour = Red | Green | Blue | Indigo | Violet
> deriving (Enum,Show)
The tutorial says:
...user-defined enumerated types like Color can easily be given Enum instance
declarations. If so:
[Red..Violet] => [Red,Green,Blue,Indigo,Violet]
Hugs 1.4 (June 1998) says:
Main> [Red..Violet]
ERROR: Syntax error in expression (unexpected symbol "Red..")
Main> enumFromTo Red Violet
[Red,Green,Blue,Indigo,Violet]
I don't think it is because of the way I spell `Colour'.
Peter Pudney
Centre for Industrial and Applicable Mathematics
University of South Australia
