The problem, is simple enough - your module is called "ParseLib"
but you tried to import "Parselib".
Haskell being case-sensitive, this didnae work.
(The fact that your files system isn't case sensitive doesn't affect this.)
[reid@haggis]$ grep module *.hs
Constraints.hs:module Constraints where
ParseLib.hs:module ParseLib where
Parsers.hs:module Parsers where
[reid@haggis]$ grep import *.hs
Constraints.hs:--import "doaitse/Lib_Parse_Comb_Ext"
ParseLib.hs:import Constraints
Parsers.hs:import Constraints
Parsers.hs:import Parselib
Incidentally, when you uncomment the import in Constraints.hs, you
might need to change it to:
import "doaitse/Lib_Parse_Comb_Ext" as Lib_Parse_Comb_Ext
so that Hugs will know that you've imported a module called
"Lib_Parse_Comb_Ext" and not a module called "doaitse/Lib_Parse_Comb_Ext".
You'll see us doing this a little in some of the Hugs libraries:
[reid@haggis]$ grep import hugs/lib/hugs/*.hs
Graphics.hs:import "../Graphics/GraphicsLoader" as GraphicsLoader
Haskore.hs:import "../Haskore/src/HaskoreLoader" as HaskoreLoader
- a sneaky device to avoid putting all the Graphics modules and all the
Haskore modules onto our search path.
Orrabest,
Alastair
> [EMAIL PROTECTED] reports the following problem.
>
> Version: 1.4 (971031)
> OS: WINNT
> compiler: (downloaded as binary)
> configuration:
> Expected behaviour:
> I'm loading module parsers
> parsers imports parselib
> parselib imports constraints
> I'd like this to load
> Observed behaviour:
> I get the Error:
> ERROR "parsers.hs": Module "Parselib" not previously loaded
> which I don't understand (sorry)
>
>
> Transcript:
> ___ ___ ___ ___ __________ __________
> / / / / / / / / / _______/ / _______/ Hugs 1.4 beta
> / /___/ / / / / / / / _____ / /______
> / ____ / / / / / / / /_ / /______ / The Nottingham and Yale
> / / / / / /___/ / / /___/ / _______/ / Haskell User's System
> /__/ /__/ /_________/ /_________/ /_________/ Version 971031
>
> Copyright (c) The University of Nottingham and Yale University, 1994-1997.
> Bug reports: [EMAIL PROTECTED] Web: http://www.haskell.org/hugs.
>
> Reading file "C:\programming\hugs\lib\Prelude.hs":
>
> Hugs session for:
> C:\programming\hugs\lib\Prelude.hs
> Type :? for help
> Prelude> :l parsers
> Reading file "parsers.hs":
> Reading file "Constraints.hs":
> Reading file "Parselib.hs":
> Reading file "parsers.hs":
> ERROR "parsers.hs": Module "Parselib" not previously loaded
> ParseLib>
