envparse

Version 0.1.0 revision 1 uploaded 2022-06-18T17:00:05.000Z by Bodigrim.

Package meta

Synopsis

Parse environment variables

Description

Here's a simple example

module Main (main) where

import Control.Monad (unless)
import Env

data Hello = Hello { name :: String, quiet :: Bool }

hello :: IO Hello
hello = Env.parse (header "envparse example") $
  Hello <$> var (str <=< nonempty) "NAME"  (help "Target for the greeting")
        <*> switch                 "QUIET" (help "Whether to actually print the greeting")
 
main :: IO ()
main = do
  Hello { name, quiet } <- hello
  unless quiet $
    putStrLn ("Hello, " ++ name ++ "!")

Author

Matvey Aksenov

Bug reports

n/a

Category

System

Copyright

2014 Matvey Aksenov

Homepage

http://example.com/

Maintainer

matvey.aksenov@gmail.com

Package URL

n/a

Stability

n/a

Components

• lib:envparse
• test:spec