Hello, This is because -- appended by a symbol results in the dashes being parsed as an operator. Add a space. Cheers, Edward Excerpts from KMandPJLynch's message of Thu Aug 30 10:39:14 -0400 2012:

Good morning,

A comment such as [which begins with -- followed immediately by a period '.' - see next line]: --... creates the syntax error: ch11.hs:228:1: parse error on input `--...'

I'd appreciate any advice.

Good day