Fez.Data.Conf

Simple functions for loading config files

This module was motived by the desire to factor this repetitive configuration file parsing code out of several of my projects.

These functions offer very simple behavior which may be fine for many tasks. For those needing something that does more, including building and saving config data and .ini-style [section]s, may I suggest Data.ConfigFile http://hackage.haskell.org/cgi-bin/hackage-scripts/package/ConfigFile.

Documentation

type ConfMap = Map String String

parseToMap :: String -> ConfMap

Parse config file data into a simple (Map String String).

For example, this:

  --- file start ---
  foo=one
  # a comment

  bar
  baz-blorp=2
  --- file end ---

becomes:

  fromList [("foo","one"),("bar",""),("baz-blorp","2")]

Comments (prefixed with #) and blank lines in the config file are discarded.

parseToArgs :: String -> [String]

Parse config file data into what looks like long args on a command line.

Sometimes it's convenient to be able to supply commonly used long args in a config file. The idea here is you can prepend this [String] to your other command line args and send the whole mess to your System.Console.GetOpt-based code.

For example, this:

  --- file start ---
  foo=one
  # a comment

  bar
  baz-blorp=2
  --- file end ---

becomes:

  [ "--foo=one", "--bar", "--baz-blorp=2" ]

As above, comments (prefixed with #) and blank lines in the config file are discarded.