Changelog

Unreleased

Added

• Support for GHC 9.8 (#775).

Changed

Fixed

• Wrong default HIndent configuration in README.md (#750).
• Fix the bug of panicking when the given source code has CPP lines and space-prefixed lines (#780).
• Fix not pretty-printing multiple signatures in a SPECIALISE (#784).

Removed

6.1.0 - 2023-05-17

Added

• Support for GHC 9.6 (#699)
• The hindent function for easy use within a project (#709).

Changed

• reformat now takes a list of Extensions instead of a Maybe value containing the list (#712).
• reformat and testAst now return a ParseError on error (#715).
• reformat now returns the formatted code as a ByteString instead of a Builder. (#720).
• HIndent now assumes no extensions are enabled by default (#728).
• All modules except for HIndent are now private, and the minimum necessary definitions are exposed from the module (#729).
• HIndent now prints all do expressions in a unified style (#739).
• HIndent now formats operators based on their fixities (#741, #742).

Fixed

• Fixed module names being removed from uses of qualified do (#696).
• Misplaced haddocks for class declarations (#706).
• Misplaced comments in do expressions (#707).
• Misplaced comments in case expressions (#708).
• The bug of extensions specified via pragmas not enabling implied ones (#727).
• Language extensions enabled via pragmas were not effective across CPP boundaries (#731).

Removed

• HIndent.LanguageExtension.defaultExtensions (#728)
• HIndent.LanguageExtension.allExtensions (#728)

6.0.0 - 2023-02-20

Added

• The getConfig function is exported.

Changed

• Switched the parser from haskell-src-exts to ghc-lib-parser. This switch causes changes in the formatting results in some cases.
• Changed how to format a data type with a record constructor to follow the Johan Tibell's Haskell Style Guide. (#662).
• A newline is no longer inserted after a pattern signature (#663).
• A type with many type applications are now broken into multiple lines. (#664).
• A long type-level list is broken into multiple lines. (#665).
• Spaces around typed expression brackets are removed (#666).
• HIndent no longer breaks short class constraints in function signautres into multiple lines (#669).

Fixed

• Fixed the wrong formatting of data family instances inside class instances (#667).
• Fixed the bug of removing the space before the enclosing parenthesis of a record syntax in a signature in a GADT declaration (#670).
• Fixed the bug of inserting unnecessary empty lines if a file contains only comments (#672).

Removed

• Test functions except testAst.
• Atom support (#671).

5.3.4 - 2022-07-07

This version is accidentally pushlished, and is the same as 5.3.3.

5.3.3 - 2022-07-07

Added

• Support for GHC 9.2.2.
• Test CI with GitHub Actions (WIP).

Fixed

• Fixed a broken link to Servant by @mattfbacon in #579.
• Fixed a build with Cabal 3.6 by @uhbif19 in #584.
• Fixed a compile error for GHC 9.2.2 by @toku-sa-n in #588.

5.3.2 - 2022-02-02

Fixed

• MonadFix issues to support newer GHC versions.

5.3.1 - 2019-06-28

Fixed

• Comment relocations in where clauses of top-level function declarations.

5.3.0 - 2019-04-29

Added

• Allow batch processing of multiple files.
• You can now specify default extensions in the configuration file.

Fixed

• Handle multiple deriving clauses in the DerivingStrategies scenario.
• Ignore non-files in findCabalFiles.
• Prevent HIndent from trying to open non-files when searching for .cabal files.
• Fix the bad output for [p|Foo|] pattern quasi-quotes.
• Fix pretty-printing of '(:).
• Fix parsing C preprocessor line continuations.
• Add parentheses around symbols (:|) when required.
• Support $p pattern splices.
• Fix formatting of associated type families.
• Fix formatting of non-dependent record constructors.

5.2.7 - 2019-03-16

Fixed

• A bug in the -X option

5.2.6 - 2019-03-16

Changed

• Switched to optparse-applicative.

5.2.5 - 2018-01-04

Added

• Support getting extensions from a .cabal file

Changed

• Improved the indentation with record constructions and updates
• Updated haskell-src-exts dependency to version >= 1.20.0

Fixed

• Fix the let ... in bug
• Fix formatting top-level lambda expressions in TemplateHaskell slices

5.2.4 - 2017-10-20

Added

• Improved pretty-printing unboxed tuples.
• Support the --validate option for checking the format without reformatting
• Support parsing #include, #error, and #warning directives.
• Support reading LANGUAGE pragmas and parse the declared extensions from sources.
• Support the EmptyCases extension
• Optimize pretty-printing for many functional dependencies.

Changed

• The TypeApplications extension is now disabled-by-default due to the @ symbol

Fixed

• Fixed pretty-printing imports
• Fixed pretty-printing string literals for DataKinds
• Fixed many issues related to infix operators including TH name quotes, INLINE/NOINLINE pragmas, infix type operators, and infix constructors.
• Fix extra linebreaks after short identifiers.

5.2.3 - 2017-05-07

Added

• HIndent now reports where a parse happened.
• Added --line-breaks parameter to support custom line breaks.
• Added the RecStmt support

Changed

• Explicit import lists are now sorted.
• Improved pretty-printing long type signatures.
• Improved pretty-printing GADT records.
• Improved pretty-printing data declaration records.
• The RecursiveDo and DoRec extensions are now disabled-by-default.

Fixed

• Fixed pretty-printing for infix data constructors.
• Fixed pretty-printing of quasi-quoter names.
• Fixed pretty-printing of complicated type aliases.
• Fixed pretty-printing of complicated type signatures.

5.2.2 - 2017-01-16

Changed

• HIndent now leaves do, lambda (\x->), and lambda-case (\case->) on the previous line of $.

Fixed

• Fixed pretty-printing of parallel list comprehensions.
• Miscellaneous fixes.

5.2.1 - 2016-09-01

Changed

• The --tab-size option is renamed to --indent-size.
• The PatternSynonyms extension is now disabled by default.
• HIndent now puts a newline before the closing bracket on a list.

Fixed

• Fixed handling of paragraph overhang when using large constraints.
• Fixed pretty-printing of multi-line comments.
• Fixed bug resulting in adding a spurious space for comments at the end of a file.
• Fixed bug which results in adding a trailing white space on <-

5.2.0 - 2016-08-30

Added

• Support the .hindent.yaml file to specify alternative tab width and max column numbers.
• Implement the tab-size support in Emacs Lisp.

Changed

• The default number of spaces for a tab is changed to 2.

5.1.1 - 2016-08-29

Added

• Add shebang support (Fixes #208).
• Output the filename for parse errors (Fixes #179).
• Added a document of the -X option (Fixes #212).

Changed

• HIndent now preserves spaces between groups of imports (Fixes #200).
• HIndent now preserves the last newline if the input ends with one (Fixes #211).
• HIndent now puts the last parenthesis of an export list on a new line (Fixes #227).

Fixed

• Fixed pretty-printing explicit foralls in instances (Fixes #218).

5.1.0 - 2016-08-25

Added

• Add --tab-size parameter to control indentation spaces.

Changed

• Rewrote comment association for more reliability.

Fixed

• Some miscellaneous bugs.

5.0.1 - 2016-08-20

Added

• Made HIndent compatible with GHC 7.8 through GHC 8.0
• Added test suites and benchmarks in TESTS.md and BENCHMARKS.md

Changed

• Re-implement using bytestring instead of text

5.0.0 - 2016-08-11

Removed

• Support for styles

4.6.4 - 2016-07-15

Changed

• The formatted file is now created by coping/deleting a file instead of renaming.

4.6.3 - 2016-04-18

Added

• Accept a filename to reformat.

Fixed

• Fixed the whole module printer.

4.5.4 - 2015-06-22

Added

• Improvements to Tibell style.
• 6x speed up on rendering operators.

4.4.5 - 2015-11-10

Fixed

• Fixed a bug in infix patterns.

4.4.2 - 2015-04-05

Added

• Support for CPP.

Fixed

• Bunch of Gibiansky style bugs.
• Tibell style bugs.

4.3.8 - 2015-02-06

Fixed

• A bug in printing operators in statements.