name:                envparse
version:             0.5.0
synopsis:            Parse environment variables
description:
  Here's a simple example of a program that uses @envparse@'s parser:
  .
  @
  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\") $
  &#x20; Hello \<$\> var (str <=< nonempty) \"NAME\"  (help \"Target for the greeting\")
  &#x20;       \<*\> switch                 \"QUIET\" (help \"Whether to actually print the greeting\")
  &#x20;
  main :: IO ()
  main = do
  &#x20; Hello &#x7b;name, quiet&#x7d; <- hello
  &#x20; unless quiet $
  &#x20;   putStrLn (\"Hello, \" ++ name ++ \"!\")
  @
  .
  The @NAME@ environment variable is mandatory and contains the name of the person to
  greet. @QUIET@, on the other hand, is an optional boolean flag, false by default, that
  decides whether the greeting should be silent.
  .
  If the @NAME@ variable is undefined in the environment then running the program will
  result in the following help text:
  .
  @
  envparse example
  &#x20;
  Available environment variables:
  &#x20;
  &#x20; NAME                   Target for the greeting
  &#x20; QUIET                  Whether to actually print the
  &#x20;                        greeting
  &#x20;
  Parsing errors:
  &#x20;
  &#x20; NAME is unset
  @
homepage:            https://supki.github.io/envparse
license:             BSD3
license-file:        LICENSE
author:              Matvey Aksenov
maintainer:          matvey.aksenov@gmail.com
copyright:           2015 Matvey Aksenov
category:            System
build-type:          Simple
cabal-version:       >= 1.10
tested-with:         GHC == 8.0.2, GHC == 8.2.2, GHC == 8.4.3
extra-source-files:
  README.markdown
  CHANGELOG.markdown
  example/Main.hs
  example/CustomError.hs
  example/Generic0.hs
  example/Generic1.hs

source-repository head
  type:     git
  location: https://github.com/supki/envparse

source-repository this
  type:     git
  location: https://github.com/supki/envparse
  tag:      0.5.0

library
  default-language:
    Haskell2010
  build-depends:
      base
      >= 4.6 && < 5
    , containers
  hs-source-dirs:
    src
  exposed-modules:
    Env
    Env.Internal.Error
    Env.Internal.Free
    Env.Internal.Help
    Env.Internal.Val
    Env.Internal.Parser
  if impl(ghc >= 7.10)
    exposed-modules:
      Env.Generic
  ghc-options:
    -Wall

test-suite spec
  default-language:
    Haskell2010
  type:
    exitcode-stdio-1.0
  build-depends:
      base
      >= 4.6 && < 5
    , containers
    , envparse
    , hspec
    , text
  hs-source-dirs:
    test
  main-is:
    Spec.hs
  other-modules:
    EnvSpec
    Env.GenericSpec
    Env.Internal.ParserSpec
  ghc-options:
    -Wall