@hackage env-parser0.0.1.0

env-parser is a small library for configuring programs based on information from the environment.

Command-line oriented programs tend to pull much of their runtime configuration from command-line arguments and libraries such as cmdargs are useful for encoding this configuration in your program. For programs which draw configuration from the environment, however, this must usually be done manually.

env-parser focuses on making ENV-configured programs both easy to build, declarative, self-documenting, and easy to test.

A particular use case of this parser is to make it easy to build applications which launch under Heroku-style infrastructure. We provide explicit parsers for some of Heroku's conventions for this purpose.