.stylish-haskell.yaml

# stylish-haskell configuration file
# https://github.com/jaspervdj/stylish-haskell
##########################

steps:
  # Import cleanup
  - imports:
      # Align the import names and import list throughout the entire
      # file.
      align: global

      # Import list is aligned with end of import including 'as' and
      # 'hiding' keywords.
      #
      #   > import qualified Data.List      as List (concat, foldl, foldr, head,
      #   >                                          init, last, length)
      list_align: after_alias

      # Put as many import specs on same line as possible.
      long_list_align: inline

      # () is right after the module name:
      #
      #   > import Vector.Instances ()
      empty_list_align: right_after

      # Align import list on lines after the import under the start of
      # the module name.
      list_padding: module_name

      # There is no space between classes and constructors and the
      # list of it's members.
      #
      #   > import Data.Foldable (Foldable(fold, foldl, foldMap))
      separate_lists: false

  # Language pragmas
  - language_pragmas:
      # Vertical-spaced language pragmas, one per line.
      style: vertical

      # Brackets are not aligned together. There is only one space
      # between actual import and closing bracket.
      align: false

      # Remove redundant language pragmas.
      remove_redundant: true

  # Remove trailing whitespace
  - trailing_whitespace: {}

# Maximum line length, used by some of the steps above.
columns: 80

# Convert newlines to LF ("\n").
newline: lf

# For some reason, stylish-haskell thinks I need these extensions
# turning on in order to parse the code.
language_extensions:
  - MultiParamTypeClasses
  - TemplateHaskell