Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.lang.haskell > #456
| From | Ben Bacarisse <ben.usenet@bsb.me.uk> |
|---|---|
| Newsgroups | comp.lang.haskell |
| Subject | Re: parse error on input when print specified lines of a file |
| Date | 2016-08-23 11:00 +0100 |
| Organization | A noiseless patient Spider |
| Message-ID | <87d1kzst3t.fsf@bsb.me.uk> (permalink) |
| References | <cc369812-eba8-4c76-86e0-3f06e1e91d59@googlegroups.com> |
meInvent bbird <jobmattcon@gmail.com> writes: > parse error on input `\' > > import System.IO > import Control.Monad > > main = do > file <- readFile "hello.txt" > forM_ [5..7] (lines file) \i -> > putStrLn i Did you mean forM_ (lines file) (\i -> putStrLn i) ? The syntax error is that you need ()s round the lambda expression here, but the extra list [5..7] is puzzling me. -- Ben.
Back to comp.lang.haskell | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
parse error on input when print specified lines of a file meInvent bbird <jobmattcon@gmail.com> - 2016-08-23 01:52 -0700
Re: parse error on input when print specified lines of a file Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-08-23 11:00 +0100
Re: parse error on input when print specified lines of a file meInvent bbird <jobmattcon@gmail.com> - 2016-08-23 18:40 -0700
Re: parse error on input when print specified lines of a file meInvent bbird <jobmattcon@gmail.com> - 2016-08-23 18:49 -0700
Re: parse error on input when print specified lines of a file Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-08-24 10:07 +0100
csiph-web