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1−# stylish-haskell configuration file
2−# ==================================
3−
4−# The stylish-haskell tool is mainly configured by specifying steps. These steps
5−# are a list, so they have an order, and one specific step may appear more than
6−# once (if needed). Each file is processed by these steps in the given order.
7−steps:
8− # Convert some ASCII sequences to their Unicode equivalents. This is disabled
9− # by default.
10− # - unicode_syntax:
11− # # In order to make this work, we also need to insert the UnicodeSyntax
12− # # language pragma. If this flag is set to true, we insert it when it's
13− # # not already present. You may want to disable it if you configure
14− # # language extensions using some other method than pragmas. Default:
15− # # true.
16− # add_language_pragma: true
17−
18− # Align the right hand side of some elements. This is quite conservative
19− # and only applies to statements where each element occupies a single
20− # line.
21− - simple_align:
22− cases: true
23− top_level_patterns: true
24− records: true
25−
26− # Import cleanup
27− - imports:
28− # There are different ways we can align names and lists.
29− #
30− # - global: Align the import names and import list throughout the entire
31− # file.
32− #
33− # - file: Like global, but don't add padding when there are no qualified
34− # imports in the file.
35− #
36− # - group: Only align the imports per group (a group is formed by adjacent
37− # import lines).
38− #
39− # - none: Do not perform any alignment.
40− #
41− # Default: global.
42− align: global
43−
44− # The following options affect only import list alignment.
45− #
46− # List align has following options:
47− #
48− # - after_alias: Import list is aligned with end of import including
49− # 'as' and 'hiding' keywords.
50− #
51− # > import qualified Data.List as List (concat, foldl, foldr, head,
52− # > init, last, length)
53− #
54− # - with_alias: Import list is aligned with start of alias or hiding.
55− #
56− # > import qualified Data.List as List (concat, foldl, foldr, head,
57− # > init, last, length)
58− #
59− # - new_line: Import list starts always on new line.
60− #
61− # > import qualified Data.List as List
62− # > (concat, foldl, foldr, head, init, last, length)
63− #
64− # Default: after_alias
65− list_align: after_alias
66−
67− # Right-pad the module names to align imports in a group:
68− #
69− # - true: a little more readable
70− #
71− # > import qualified Data.List as List (concat, foldl, foldr,
72− # > init, last, length)
73− # > import qualified Data.List.Extra as List (concat, foldl, foldr,
74− # > init, last, length)
75− #
76− # - false: diff-safe
77− #
78− # > import qualified Data.List as List (concat, foldl, foldr, init,
79− # > last, length)
80− # > import qualified Data.List.Extra as List (concat, foldl, foldr,
81− # > init, last, length)
82− #
83− # Default: true
84− pad_module_names: true
85−
86− # Long list align style takes effect when import is too long. This is
87− # determined by 'columns' setting.
88− #
89− # - inline: This option will put as much specs on same line as possible.
90− #
91− # - new_line: Import list will start on new line.
92− #
93− # - new_line_multiline: Import list will start on new line when it's
94− # short enough to fit to single line. Otherwise it'll be multiline.
95− #
96− # - multiline: One line per import list entry.
97− # Type with constructor list acts like single import.
98− #
99− # > import qualified Data.Map as M
100− # > ( empty
101− # > , singleton
102− # > , ...
103− # > , delete
104− # > )
105− #
106− # Default: inline
107− long_list_align: inline
108−
109− # Align empty list (importing instances)
110− #
111− # Empty list align has following options
112− #
113− # - inherit: inherit list_align setting
114− #
115− # - right_after: () is right after the module name:
116− #
117− # > import Vector.Instances ()
118− #
119− # Default: inherit
120− empty_list_align: inherit
121−
122− # List padding determines indentation of import list on lines after import.
123− # This option affects 'long_list_align'.
124− #
125− # - <integer>: constant value
126− #
127− # - module_name: align under start of module name.
128− # Useful for 'file' and 'group' align settings.
129− list_padding: 4
130−
131− # Separate lists option affects formatting of import list for type
132− # or class. The only difference is single space between type and list
133− # of constructors, selectors and class functions.
134− #
135− # - true: There is single space between Foldable type and list of it's
136− # functions.
137− #
138− # > import Data.Foldable (Foldable (fold, foldl, foldMap))
139− #
140− # - false: There is no space between Foldable type and list of it's
141− # functions.
142− #
143− # > import Data.Foldable (Foldable(fold, foldl, foldMap))
144− #
145− # Default: true
146− separate_lists: true
147−
148− # Space surround option affects formatting of import lists on a single
149− # line. The only difference is single space after the initial
150− # parenthesis and a single space before the terminal parenthesis.
151− #
152− # - true: There is single space associated with the enclosing
153− # parenthesis.
154− #
155− # > import Data.Foo ( foo )
156− #
157− # - false: There is no space associated with the enclosing parenthesis
158− #
159− # > import Data.Foo (foo)
160− #
161− # Default: false
162− space_surround: false
163−
164− # Language pragmas
165− - language_pragmas:
166− # We can generate different styles of language pragma lists.
167− #
168− # - vertical: Vertical-spaced language pragmas, one per line.
169− #
170− # - compact: A more compact style.
171− #
172− # - compact_line: Similar to compact, but wrap each line with
173− # `{-#LANGUAGE #-}'.
174− #
175− # Default: vertical.
176− style: vertical
177−
178− # Align affects alignment of closing pragma brackets.
179− #
180− # - true: Brackets are aligned in same column.
181− #
182− # - false: Brackets are not aligned together. There is only one space
183− # between actual import and closing bracket.
184− #
185− # Default: true
186− align: true
187−
188− # stylish-haskell can detect redundancy of some language pragmas. If this
189− # is set to true, it will remove those redundant pragmas. Default: true.
190− remove_redundant: true
191−
192− # Replace tabs by spaces. This is disabled by default.
193− # - tabs:
194− # # Number of spaces to use for each tab. Default: 8, as specified by the
195− # # Haskell report.
196− # spaces: 8
197−
198− # Remove trailing whitespace
199− - trailing_whitespace: {}
200−
201−# A common setting is the number of columns (parts of) code will be wrapped
202−# to. Different steps take this into account. Default: 80.
203−columns: 80
204−
205−# By default, line endings are converted according to the OS. You can override
206−# preferred format here.
207−#
208−# - native: Native newline format. CRLF on Windows, LF on other OSes.
209−#
210−# - lf: Convert to LF ("\n").
211−#
212−# - crlf: Convert to CRLF ("\r\n").
213−#
214−# Default: native.
215−newline: native
216−
217−# Sometimes, language extensions are specified in a cabal file or from the
218−# command line instead of using language pragmas in the file. stylish-haskell
219−# needs to be aware of these, so it can parse the file correctly.
220−#
221−# No language extensions are enabled by default.
222−language_extensions:
223− - BangPatterns
224− - FlexibleContexts
225− - FlexibleInstances
226− - MultiParamTypeClasses
227− - MultiWayIf
228− - NoImplicitPrelude
229− - OverloadedStrings
230− - RankNTypes
231− - ScopedTypeVariables
232− - TupleSections
233− - TypeFamilies