# stylish-haskell configuration file
# ==================================

# The stylish-haskell tool is mainly configured by specifying steps. These steps
# are a list, so they have an order, and one specific step may appear more than
# once (if needed). Each file is processed by these steps in the given order.
steps:
  # Convert some ASCII sequences to their Unicode equivalents. This is disabled
  # by default.
  # - unicode_syntax:
  #     # In order to make this work, we also need to insert the UnicodeSyntax
  #     # language pragma. If this flag is set to true, we insert it when it's
  #     # not already present. You may want to disable it if you configure
  #     # language extensions using some other method than pragmas. Default:
  #     # true.
  #     add_language_pragma: true

  # Format record definitions
  # Disabled: don't like it for simple sum types
  # - records: {}

  # Align the right hand side of some elements.  This is quite conservative
  # and only applies to statements where each element occupies a single
  # line. All default to true.
  - simple_align:
      cases: true
      top_level_patterns: true
      records: true

  # Import cleanup
  - imports:
      # There are different ways we can align names and lists.
      #
      # - global: Align the import names and import list throughout the entire
      #   file.
      #
      # - file: Like global, but don't add padding when there are no qualified
      #   imports in the file.
      #
      # - group: Only align the imports per group (a group is formed by adjacent
      #   import lines).
      #
      # - none: Do not perform any alignment.
      #
      # Default: global.
      align: none

      # The following options affect only import list alignment.
      #
      # List align has following options:
      #
      # - after_alias: 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)
      #
      # - with_alias: Import list is aligned with start of alias or hiding.
      #
      #   > import qualified Data.List      as List (concat, foldl, foldr, head,
      #   >                                 init, last, length)
      #
      # - with_module_name: Import list is aligned `list_padding` spaces after
      #   the module name.
      #
      #   > import qualified Data.List      as List (concat, foldl, foldr, head,
      #                          init, last, length)
      #
      #   This is mainly intended for use with `pad_module_names: false`.
      #
      #   > import qualified Data.List as List (concat, foldl, foldr, head,
      #                          init, last, length, scanl, scanr, take, drop,
      #                          sort, nub)
      #
      # - new_line: Import list starts always on new line.
      #
      #   > import qualified Data.List      as List
      #   >     (concat, foldl, foldr, head, init, last, length)
      #
      # Default: after_alias
      list_align: after_alias

      # Right-pad the module names to align imports in a group:
      #
      # - true: a little more readable
      #
      #   > import qualified Data.List       as List (concat, foldl, foldr,
      #   >                                           init, last, length)
      #   > import qualified Data.List.Extra as List (concat, foldl, foldr,
      #   >                                           init, last, length)
      #
      # - false: diff-safe
      #
      #   > import qualified Data.List as List (concat, foldl, foldr, init,
      #   >                                     last, length)
      #   > import qualified Data.List.Extra as List (concat, foldl, foldr,
      #   >                                           init, last, length)
      #
      # Default: true
      pad_module_names: false


  # Language pragmas
  - language_pragmas:
      # We can generate different styles of language pragma lists.
      #
      # - vertical: Vertical-spaced language pragmas, one per line.
      #
      # - compact: A more compact style.
      #
      # - compact_line: Similar to compact, but wrap each line with
      #   `{-#LANGUAGE #-}'.
      #
      # Default: vertical.
      style: vertical

      # Align affects alignment of closing pragma brackets.
      #
      # - true: Brackets are aligned in same column.
      #
      # - false: Brackets are not aligned together. There is only one space
      #   between actual import and closing bracket.
      #
      # Default: true
      align: false

      # Language prefix to be used for pragma declaration, this allows you to
      # use other options non case-sensitive like "language" or "Language".
      # If a non correct String is provided, it will default to: LANGUAGE.
      language_prefix: language

  # Remove trailing whitespace
  - trailing_whitespace: {}

  # Squash multiple spaces between the left and right hand sides of some
  # elements into single spaces. Basically, this undoes the effect of
  # simple_align but is a bit less conservative.
  # - squash: {}

# A common indentation setting. Different steps take this into account.
indent: 4