| " Vim compiler file for Python | |
| " Compiler: Style checking tool for Python | |
| " Maintainer: Oleksandr Tymoshenko <[email protected]> | |
| " Last Change: 2011 Aug 25 | |
| " Version: 0.5 | |
| " Contributors: | |
| " Artur Wroblewski | |
| " Menno | |
| " Lorenzo Bolla | |
| " |
| " Add to .vimrc | |
| " Need to have .vim/compiler/ghc.vim | |
| augroup HSK | |
| au Bufenter *.hs compiler ghc | |
| autocmd FileType haskell setlocal formatoptions+=t | |
| autocmd FileType haskell let b:ghc_staticoptions = '-Wall -Werror' | |
| augroup END |
| javascript:(function() {var s=document.createElement('script'); s.src="https://raw.github.com/gist/1303423/4859b59a423612c90ec5b0c77591f984c4dfdd07/add_reviewers.js"; document.getElementsByTagName('head')[0].appendChild(s);})() |
| -- There and Back Again | |
| -- http://www.brics.dk/RS/02/12/BRICS-RS-02-12.pdf | |
| -- Fold a function over a sequence and the reverse of another sequence, in | |
| -- just one passage. | |
| taba :: ((t1, t2) -> t -> t) -> t -> [t1] -> [t2] -> t | |
| taba f b xs ys = | |
| let (r, _) = foldr (\x (r, y:ys) -> (f (x,y) r, ys)) | |
| (b, ys) | |
| xs |
| module Main where | |
| import Data.List (nubBy, concat, findIndices) | |
| import Control.Monad (liftM2, forM, join, guard) | |
| import Data.Maybe (catMaybes, fromMaybe) | |
| import Debug.Trace | |
| type Board = String | |
| -- Some boards |
| '''Pipeline | |
| (yield) -> receiver | |
| .send -> producer | |
| ''' | |
| import time | |
| N = 0 |
| GHC=ghc --make -O2 #-threaded | |
| GHC_PROF=${GHC} -prof -auto-all | |
| warp: warp.hs | |
| ${GHC} warp.hs | |
| warp-prof: warp.hs | |
| ${GHC_PROF} warp.hs | |
| yesod: yesod.hs |
Asynchronous programming can be tricky for beginners, therefore I think it's useful to iron some basic concepts to avoid common pitfalls.
For an explanation about generic asynchronous programming, I recommend you one of the [many][2] [resources][3] [online][4].
I will focus on solely on asynchronous programming in [Tornado][1]. From Tornado's homepage:
| from concurrent.futures import ThreadPoolExecutor | |
| from functools import partial, wraps | |
| import time | |
| import tornado.ioloop | |
| import tornado.web | |
| EXECUTOR = ThreadPoolExecutor(max_workers=4) |
| """ | |
| This is a simple example of WebSocket + Tornado + Redis Pub/Sub usage. | |
| Do not forget to replace YOURSERVER by the correct value. | |
| Keep in mind that you need the *very latest* version of your web browser. | |
| You also need to add Jacob Kristhammar's websocket implementation to Tornado: | |
| Grab it here: | |
| http://gist.github.com/526746 | |
| Or clone my fork of Tornado with websocket included: | |
| http://github.com/pelletier/tornado | |
| Oh and the Pub/Sub protocol is only available in Redis 2.0.0: |