Hello. The Parsec library (in package text from hslibs) distributed with GHC 4.08.1 and from CVS does not work as expected. When I try the attached program, ghc gives me error messages: ================================= test.hs:6: Couldn't match `TokenParser' against `[Char]' Expected type: TokenParser Inferred type: [Char] In the first argument of `symbol', namely `"let"' In a do statement: symbol "let" test.hs:12: Ambiguous type variable(s) `a' in the constraint `Show a' arising from use of `print' at test.hs:12 In the right-hand side of an equation for `main': print (parse pLet "" "let a = 232") Compilation had errors ================================= This same program works if I use the Parsec library downloaded from the author page http://www.cs.uu.nl/~daan (after correcting a small bug relative to using some names from the Char module without importing them). I hope the library gets updated in the GHC CVS repository and the next GHC release corrects this problem. Regards, Romildo -- Prof. José Romildo Malaquias Departamento de Computação Universidade Federal de Ouro Preto Brasil