On Tue, 17 Jun 2003 19:23:55 -0700 John Meacham wrote:

change in list comprehension parsing? after I upgraded to ghc 6.0 there were some odd syntax errors on list comprehensions which i did not get before, making sure i put spaces between all symbols seems to fix them.. was something changed about how they are parsed which breaks code that used to work? just curious.

John

I'm going to assume this message was cut-off otherwise an example illustrating the issue would have been a definite help. If you aren't using -fglasgow-exts then I can't think of anything that would break whatever, however in 6.0, probably the most major thing in 6.0, is Template Haskell which takes some lexemes. If you have a list comprehension like [d|d<-ds] then you are going to have issues as '[d|' is a lexeme in TH. Others include, '$(', '[|','|]','$x' where x is some variable