Haskell Cookbook

How to do it...

1. Create a new project ini-parser using the simple Stack template:

        stack new ini-parser simple

2. Open the file src/Main.hs for editing.
3. After the initial module header, add the following imports:

        import Data.Functor        import Control.Applicative        import Control.Monad        import Data.Map hiding (empty)        import Data.Char

4. Define the INI file data structure. Represent name-value pairs in each section (variables) as a map of name to values. Both name and values are represented by strings. The sections inside an INI file are a map between the section name and variables for each section:

        type Variables = Map String String        type Sections = Map String Variables        newtype INI = INI Sections

5. Start defining the parser. A parser is defined as ...