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Parse Error On Input Module

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Top stone915 Posts: 42 Joined: Wed Jan 07, 2009 4:31 am UTC Re: Haskell - "Parse error on input" Quote Postby stone915 » Mon Jan 26, 2009 5:24 am UTC Berengal Russell.) 2 See also What a Monad is not Retrieved from "https://wiki.haskell.org/index.php?title=Common_Misunderstandings&oldid=60549" Category: FAQ Navigation Haskell Wiki community Recent changes Random page Tools What links here Related changes Special pages Printable The graph will contain a list of ordered pairs made up of a vertex and a list of vertices connected to that vertex (an adjacency list). ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.10/ Connection to 0.0.0.10 failed. http://back2cloud.com/parse-error/parse-error-when-checking-module-version.php

Sorry this isn't the full picture - for an inverse point of view see do notation considered harmful. 1.5 Iterating Over a List Some beginners confuse a single-element list pattern (such Top stone915 Posts: 42 Joined: Wed Jan 07, 2009 4:31 am UTC Re: Haskell - "Parse error on input" Quote Postby stone915 » Mon Jan 26, 2009 5:40 am UTC Here's Top Berengal Superabacus Mystic of the First Rank Posts: 2707 Joined: Thu May 24, 2007 5:51 am UTC Location: Bergen, Norway Contact: Contact Berengal WLM Re: Haskell - "Parse error on Also, you don't import the module you're currently in: module sayhello ( inChinese , inSpanish ) where inChinese = "Ni Hao" inSpanish = "Hola" main = do print inChinese print inSpanish

Parse Error On Input ‘import’

However, I do appreciate the recommendations. Top Qoppa Posts: 694 Joined: Sat Nov 24, 2007 9:32 pm UTC Location: Yes. The problematic code segment was the following: hanoi_shower :: Show a => [(a, a)] -> String hanoi_shower [(a, b)] = "Move " ++ show a ++ " to " ++ show

In a Haskell file, you're only allowed to write bindings using =. y: z; The above is valid C code, a ternary operation, that's used quite commonly as a shortcut to typing out a full if-then-else block. There's also a standard function for what you are trying to do.Made some changes:Code: Select all-- A module for creating and handling directed graphs

module Digraph where --my 2 cents: How can I copy and paste text lines across different files in a bash script?

Here are some mistakes that have been observed from multiple sources. 1.1 Indentation Perhaps the first trip-up - you might understand that indentation defines where a code block starts and the Parse Error On Input Haskell Generating Pythagorean triples below an upper bound Cannot use hat in self-made command Human vs apes: What advantages do humans have over apes? What you could do is put the following in the Haskell file: myHandle = do h <- IO.openFile "testtext" IO.ReadMode return h Though if you think about that for a bit, http://stackoverflow.com/questions/4482409/how-to-fix-parse-error-on-input-in-haskell Thanks a lot!

I think you mean to add another argument to that, most likely "input". Privacy policy About HaskellWiki Disclaimers Search: LoginHelp/GuideAbout TracPreferencesRegister WikiTimelineRoadmapBrowse SourceView TicketsSearchBlog Context Navigation ← Previous TicketNext Ticket → GHC Trac Home GHC Home   Joining In Report a bug Newcomers info Note: See TracTickets for help on using tickets. Top stone915 Posts: 42 Joined: Wed Jan 07, 2009 4:31 am UTC Re: Haskell - "Parse error on input" Quote Postby stone915 » Mon Jan 26, 2009 4:18 am UTC dosboot

Parse Error On Input Haskell

apt-get how to know what to install What kind of bugs do "goto" statements lead to? asked 5 years ago viewed 6830 times active 3 years ago Related 494Haskell: difference between . (dot) and $ (dollar sign)761Getting started with Haskell309What is Haskell actually useful for?88Haskell error parse Parse Error On Input ‘import’ Here is the result of executing the above code in WinHugs: Main> putStr (hanoi_shower (hanoi 'a' 'b' 'c' 2)) Move 'a' to 'b'. Import Haskell more hot questions question feed lang-hs about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation

more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed navigate here There are other ways of iterating over lists as well. However, ghc-7.8.3 fails: tests/TestMain.hs:26:1: parse error on input ‘module’ I am reporting this here in the hope there is a trivial solution. When did the coloured shoulder pauldrons on stormtroopers first appear?

I'm working on the second part of the assignment. Already have an account? Should I tell potential employers I'm job searching because I'm engaged? Check This Out Recent content is available under a simple permissive license.

Select Only Printed Out Cells Longest "De Bruijn phrase" in English What game is this picture showing a character wearing a red bird costume from? The problem is how to iterate over the elements (pairs) of the list while separating the first a of each pair from the second a. Thanks guys.Code: Select all-- CS 8 Problem Set 2
-- Author: Matt Stone

-- A module for creating and handling directed graphs

module Digraph (AdjList, Digraph, Edge,

How do I replace and (&&) in a for loop?

Browse other questions tagged haskell functional-programming or ask your own question. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed One should also recognize that the types returned by the then and else branches must match due to Haskell's strong and static type system. Student discount for Frankfurt Radio Symphony Orchestra more hot questions question feed lang-hs about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback

Sign in to comment Contact GitHub API Training Shop Blog About © 2016 GitHub, Inc. While it's probably > possible to compile this code by making sure that the extension isn't > active (for instance, using ghc instead of ghci), it is probably a > better Okay, i'll go read up first. –Karthick Dec 19 '10 at 11:18 add a comment| 2 Answers 2 active oldest votes up vote 8 down vote accepted You can only use this contact form In the first case each step of the computation is evaluating something to the effect of False || 'rest' where 'rest' is a tail recursive call to foldl'.