Support haskell-src-exts 1.21.

.gitignore

@@ -0,0 +1,5 @@
+.stack-work/
+.ghc.environment.*
+dist-newstyle/
+dist/
+cabal.project.local

.stylish-haskell.yaml

@@ -0,0 +1,229 @@
+# 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
+
+ # Align the right hand side of some elements. This is quite conservative
+ # and only applies to statements where each element occupies a single
+ # line.
+ - 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: group
+
+ # 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)
+ #
+ # - 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: true
+
+ # Long list align style takes effect when import is too long. This is
+ # determined by 'columns' setting.
+ #
+ # - inline: This option will put as much specs on same line as possible.
+ #
+ # - new_line: Import list will start on new line.
+ #
+ # - new_line_multiline: Import list will start on new line when it's
+ # short enough to fit to single line. Otherwise it'll be multiline.
+ #
+ # - multiline: One line per import list entry.
+ # Type with constructor list acts like single import.
+ #
+ # > import qualified Data.Map as M
+ # > ( empty
+ # > , singleton
+ # > , ...
+ # > , delete
+ # > )
+ #
+ # Default: inline
+ long_list_align: new_line
+
+ # Align empty list (importing instances)
+ #
+ # Empty list align has following options
+ #
+ # - inherit: inherit list_align setting
+ #
+ # - right_after: () is right after the module name:
+ #
+ # > import Vector.Instances ()
+ #
+ # Default: inherit
+ empty_list_align: right_after
+
+ # List padding determines indentation of import list on lines after import.
+ # This option affects 'long_list_align'.
+ #
+ # - <integer>: constant value
+ #
+ # - module_name: align under start of module name.
+ # Useful for 'file' and 'group' align settings.
+ list_padding: 2
+
+ # Separate lists option affects formatting of import list for type
+ # or class. The only difference is single space between type and list
+ # of constructors, selectors and class functions.
+ #
+ # - true: There is single space between Foldable type and list of it's
+ # functions.
+ #
+ # > import Data.Foldable (Foldable (fold, foldl, foldMap))
+ #
+ # - false: There is no space between Foldable type and list of it's
+ # functions.
+ #
+ # > import Data.Foldable (Foldable(fold, foldl, foldMap))
+ #
+ # Default: true
+ separate_lists: true
+
+ # Space surround option affects formatting of import lists on a single
+ # line. The only difference is single space after the initial
+ # parenthesis and a single space before the terminal parenthesis.
+ #
+ # - true: There is single space associated with the enclosing
+ # parenthesis.
+ #
+ # > import Data.Foo ( foo )
+ #
+ # - false: There is no space associated with the enclosing parenthesis
+ #
+ # > import Data.Foo (foo)
+ #
+ # Default: false
+ space_surround: 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: true
+
+ # stylish-haskell can detect redundancy of some language pragmas. If this
+ # is set to true, it will remove those redundant pragmas. Default: true.
+ remove_redundant: true
+
+ # Replace tabs by spaces. This is disabled by default.
+ - tabs:
+ # Number of spaces to use for each tab. Default: 8, as specified by the
+ # Haskell report.
+ spaces: 8
+
+ # 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 setting is the number of columns (parts of) code will be wrapped
+# to. Different steps take this into account. Default: 80.
+columns: 80
+
+# By default, line endings are converted according to the OS. You can override
+# preferred format here.
+#
+# - native: Native newline format. CRLF on Windows, LF on other OSes.
+#
+# - lf: Convert to LF ("\n").
+#
+# - crlf: Convert to CRLF ("\r\n").
+#
+# Default: native.
+newline: lf
+
+# Sometimes, language extensions are specified in a cabal file or from the
+# command line instead of using language pragmas in the file. stylish-haskell
+# needs to be aware of these, so it can parse the file correctly.
+#
+# No language extensions are enabled by default.
+# language_extensions:
+ # - TemplateHaskell
+ # - QuasiQuotes