CHANGELOG.md

ChangeLog

unreleased

• Fix highlighting of type keyword followed by parenthesis in an export list (#267).
• Add support for TypeData type data declarations.
• Improvements to highlighting of GADTs:
  • allow the where to be on a different line than the data
  • accept a block comment between the data and the where,
  • handle explicit semicolons/braces for layout.
• Properly highlight family/instance in type/data family declarations and instances when family/instance is on a separate line.
• Highlight {-# OPAQUE foo #-} pragma, thanks to @bodigrim.

3.8.0 - 14.06.2026

• Add automatic release workflows (#257), thanks to @fendor
• Transfer ownership to Haskell community (#256), thanks to @fendor

3.7.0 - 09.06.2026

• Add support for untrusted workspaces (#211), thanks to @maciej-irl
• Add support for \cases syntax (#218), thanks to @mixphix
• Fix bare unit type applications (#225), thanks to @mixphix
• Fix qualified type operators in export lists (#191), thanks to [@mixphix]
• Add support for elif in Cabal files (cabal-version >= 2.2) (#236)
• Add support for cabal.project files ([#237] (#237)), thanks to [@rm41339]
• Fix language detection in markdown codeblocks (#240), thanks to @nopeless
• Fix incorrect highlighting when => appears inside a comment (#165).
• Fix incorrect highlighting of symbolic record fields, and of record fields whose type includes => (#167).
• Add support for data keyword in import/export lists.
• Fix incorrect parsing when the "specialise" keyword occurs inside an SCC pragma (#195).
• Fix highlighting for PackageImports (#219).
• Fix highlighting of type signature inside pattern synony declaration (#194).
• Fix highlighting of data types with fields that contain constraints (#179).
• Updated the list of known LANGUAGE extensions to be current as of GHC 10.0.
• Fix parsing of character literals with Unicode code point above U+007E, such as 'à', '£'... (#183).
• Update the wordPattern used for autocompletion (#224), thanks to @lierdakil.
• Allow Unicode general letters to start characters, e.g. 価格.
• Prevent the interaction of the C preprocessor with multiline strings from marking the entire rest of the file as invalid (#110).
• Decimal and hexadecimal escape codes in string literals now have the appropriate scopes (instead of using octal).
• Handle declarations that don't appear at the start of a line, e.g. import A; import B; import C or class C a; instance C Int.
• Prevent slowness when parsing data declarations, in particular with data constructors with long parenthesised arguments.
• Fix an issue in which do { let x = .. } would be incorrectly highlighted as record syntax (when the opening brace is on a separate line).
• Properly highlight postfix magic hash when followed by an opening parenthesis, e.g. import Data.Tuple (Solo#(..)).

3.6.0 - 15.03.2022

• Overwriting previous release due to a packaging error

3.5.0 - 14.03.2022

• Add support for Alex and Happy (#97), thanks to @matthewess.
• Default to .hs when saving files (#197), thanks to @noughtmare.
• Fix highlighting for custom quasi quoters with immediate | (#203).
• Be more specific about scope of this project in the README

3.4.0 - 25.02.2021

• Fix lists of the form ['|'...] being highlighted as quasiquotations (#170).
• Proper highlighting of lambda case, including fixing the highlighting of subsequent braces (which were wrongly highlighted as record syntax).
• Recognize indented \begin{code} boundary in literate haskell files.
• Fix highlighting of symbolic data constructors within fixity declarations (e.g. infixl 9 :$).
• Add meta.embedded.block.{quasi-quoter} scope to quasi-quotations.
• Ensure highlighting of unicode forall syntax matches that of alphabetic forall syntax (#175).
• Fix highlighting of empty quasi-quotations such as [i||].
• Support GHC 9.0 pragmas: LinearTypes, QualifiedDo, LexicalNegation.
• Add support for modifiers, e.g. id :: a %1 -> a.

3.3.0 - 25.06.2020

• Different approach to fixing slow highlighting of data declarations (#161).
• Fix highlighting for existential data constructor when the class constraint spans multiple lines.
• Fix highlighting for GADT with where clause using {/} for indentation.
• Improve highlighting of existential data constructor in complex situations.
• Fix highlighting of symbolic pattern declarations and symbolic data constructors.
• Improvements to highlighting of pragmas #163, including support for Haddock options.
• Fix highlighting of record at syntax following an identifier that ends with an apostrophe.
• Improve highlighting of symbolic constructors in import/export lists.

3.2.1 - 14.05.2020

• Attempt to limit backtracking in regular expression for data declarations (#161).
• Improved highlighting for multi-line standalone kind signatures.
• Improved type highlighting in multiline deriving declarations.

3.2.0 - 11.05.2020

• Improvements to highlighting data constructors:
  • support for infix data constructors
    • in definitions (#132),
    • in other situations (#120),
  • correctly parse comments on the same line as a data declaration,
  • fix regression with GADT constructors when :: follows on a new line (#119),
  • fix regression: allow data constructor preceded by a symbol (e.g. parenthesis, comma) #122,
  • fix highlighting of GADT constructors that end with apostrophes,
  • highlighting now also applies to data families (#72).
• Correct highlighting of types in type families.
• Improvements to pattern synonyms
  • support multiline type signatures,
  • allow several pattern synonyms to be declared at once (#72).
• Fix regression: LiquidHaskell highlighting (#131)
• Improvements to deriving:
  • improve leniency for whitespace in deriving declarations,
  • allow unparenthesised via clauses, and highlight the derived instance code as usual,
  • highlight multiline deriving via clauses (in most situations),
  • highlight deriving strategies (#72).
• Improvements to records:
  • fix regression: allow extra spaces between record field and type signature (#118),
  • support record syntax in GADTs,
  • highlight record fields,
  • highlight record @ syntax,
  • fix regression for comments inside record definitions (#131).
• Improve highlighting of ticks (#136), (#71).
• Module imports/exports improvements:
  • allow C preprocessor instructions to appear in module exports,
  • improved highlighting of type T and pattern P declarations,
  • improve support for unusual indentation.
• Foreign import/export declarations:
  • more calling conventions recognised,
  • recognise safe/unsafe/interruptible keywords,
  • correct highlighting of type signature, including over multiple lines.
• Fix several issues with comments:
  • allow intervening comments in type/data declarations,
  • fix pragmas sometimes being highlighted as comments (#150),
  • fix wrong highlighting when a pragma is found inside a block comment (#116),
  • support for Haddock documentation heralds *, ^, $.
• Highlight recognised language extensions.
• Highlight type signature in SPECIALISE annotations.
• Improvements to multi-line declarations:
  • fixed several issues involving multi-line type/data declarations (#147),
  • fix regression in highlighting subsequent lines in a multi-line type signature when the initial :: appears appears first on a line,
  • fix wrong highlighting in multi-line class declarations.
• Add support for visible kind application (and miscellaneous fixes for visible type application).
• Improved support for reserved symbolic operators.
• Bugfix for escaped character literals (e.g. '\^A').
• Fix for floating point numeric literals not being highlighted properly.
• Newly highlighted items:
  • bang patterns and irrefutable patterns (#145),
  • as mentioned above: record @ syntax (tight infix @), and record fields,
  • bang patterns (prefix !) and irrefutable patterns (prefix ~),
  • arrow operators such as -<,
  • opt-in: magic hash using keyword.operator.hash and keyword.operator.postfix.hash,
  • unrestricted OverloadedLabels (#68),
  • role annotation keywords (nominal/representational/phantom).
  • GHC language extensions (including deprecated highlighting for deprecated extensions).
• Simple support for Haskell quasi-quoters e, p, d and t (#23), as well as typed quotes. Other quasi-quoters simply disable Haskell highlighting.
• Support for .hs-boot files (#117).
• Preliminary support for C2Hs and Hsc2Hs filetypes.
• Support for cabal internal libraries.
• Fix type signature not always ending when encountering a closing bracket.
• Allow a qualified type to be the first argument of an infix constructor inside a data declaration.

3.1.0 - 11.05.2020

Released in error without any changes.

3.0.0 - 26.04.2020

• Integrated several contributions from @robrix
  • Highlight common stanzas in .cabal files (#105)
  • Highlight benchmark components in .cabal files (#105)
  • Highlight the import and autogen-modules fields in .cabal files (#105)
  • Fix an issue where operators starting with :: were incorrectly treated as type signatures (#106)
  • Highlight COMPLETE pragmas (#107)
  • Highlight INLINEABLE pragmas (#107)
  • Highlight COLUMN pragmas (#107)
• Fixed highlighting for multi line type aliases (#111)
• Fixed highlighting of string literals in deprecation pragmas (#112)
• Specialized highlighting for signature, to permit it as an identifier (#108)
• Fixed comments occurring in place of export lists (#104)
• Pragmas are now case insensitive (#81)
• Fixed matcher for end of type annotations. Facilitates indented module blocks (#91) and standalone deriving (#89)
• Updated cabal grammar (#93)
• Shoddily fixed promotion ticks (#71)
• Added support for custom type operators (#70)
• Support for single-line deriving via and deriving ... via ... (#72)
• Rudimentary support for pattern synonyms (#72)
• Better support for type families and type instances (#72)
• Fixed highlighting for type level integers (#51)
• Improved support for type definitions
  • Constructors are now highlighted properly in definitions
  • Fixed highlighting for records (#38)
  • Type signatures are now highlighted properly in single-line type definitions
  • GADT's can now span multiple lines (#102)
  • Implemented existential types (#39)
  • data and newtypes can now include kind signatures (#35)
• Support for foreign imports (see https://www.haskell.org/onlinereport/haskell2010/haskellch8.html) (#44)
• Support for visible type applications (#73)
• Support for nested block comments by @reactormonk
• module and pattern keyword in export lists (#18)
• Fixed parentheses handling in export lists and made the colouring more consistent (#69)
• Corrected comment delimiter for literate Haskell files. By @sjorn3 in #87
• As a substantial internal change the grammar migratd to the YAML format, to make it easier to maintain and develop with.
• Refined many of the tm scopes with new information available from the parser

2.7.0 - 29.12.2019

• Fixed the no-indent regex (#86)
• Changing auto indent rules to only trigger on first line after indent. Contributed in #92 by @hanjinko

2.6.0 - 05.04.2019

• Highlighting for backpack signature files added. Contributed in #74 by @edmundnoble
• mixins keyword added to the cabal grammar. Contributed in #76 by @arkrost
• Module qualifiers in infix applications are now distinguished through highlighting. Contributed in #58 by @sheaf
• Support for LiquidHaskell annotations added in #78 by @ranjitjhala
  • Add support for LiquidHaskell annotations

2.5.0 - 12.05.2018

• Adds support for numeric literals as defined in this proposal in #49 by @takenobu-hs
• Added code injection to markdown for Haskell (hs, haskell), literate Haskell (lhs, literate-haskell) and Cabal (Cabal) in #55, #56 and #57 by @glebec
• Fixed parsing for type-level strings (#50)
• Fixed highlighting of empty type classes. (#66)

2.4.0 - 06.10.2017

• Merged pull request #45 by @Porges
  • Add support for some UnicodeSyntax
• Enabling off-side code folding (new feature since vscode 1.17) Folding a region of code does not fold empty lines trailing the region anymore
• Merged pull request #47 by @scott-fleischman
  • Add haskell.indentationRules.enabled setting to disable automatic indentation via user settings

2.3.2 - 18.08.2017

• Fixed highlighting for alternate control character syntax. Solves issue #42

2.3.1 - 18.07.2017

• Patch release to fix version invalidity

2.3 - 18.07.2017

• Merged pull request #37 by @jBugman
  • Adds custom-setup section to cabal syntax
  • Adds support for line comments (--) to cabal syntax
• Changed logo to png (svg is not supported anymore)

2.2.3 - 29.06.2017

• Adapted increaseIndentPattern to skip keywords followed by ' (related to the handling of keyword' identifiers as reported in #31)
• Fixed terminating type signatures on else, then etc.
• Fixed not increasing indent for one-line if (see #34)

2.2.2 - 27.06.2017

• Fixed highlighting for where keyword in GADT definition
• Fixed highlighting for <- and following expression when preceeded by type signature (see #28)
• Added mdo and rec to keywords (see #29)
• Added automatic indent for mdo blocks
• Changed keyword regexes to not fire when followed by ' (see #31)
• Fixed highlighing for qualified infix functions (see #30)

2.2.1 - 07.06.2017

• Removed snippets contribution from package.json (fixes ENOENT: no such file or directory error) discovered and fixed by @dsifford

2.2.0 - 26.05.2017

• Removed snippets by request from @Eugleo in #25

2.1.1 - 15.04.2017

• Fixed two issues with highlighting for deriving clauses
  • Added a new rule for deriving clauses of single class without parentheses (see #15 and #19)
  • Modified old rule inner matches to be recursive -> Adds correct highlighting for parethesised class type arguments

2.1.0 - 12.03.2017

• Fixed an issue where type signature detection would not end at end of record definition
• Added GHC pragmas and directives (thank you to @metaleap)

2.0.0 - 15.02.2017

• Retroactive version bump due to large previous changes
• License changed

1.5.0 - 13.02.2017

• Removed highlighting for prelude functions, as it is confusing. (see #11)
• New rules:
  • to recognize and correctly highlight inline type signatures (reported in #11)
  • for type to highlight left and right side of = as type signature
  • for data to highlight only right side of = as type signature
  • for distinction between comments and haddock documentation

1.4.4 - 12.01.2017

• Fixed a bug where in consecutive type signatures the later ones are not highlighed properly

1.4.3 - 23.12.2016

• Removing auto closing ' per suggestion from @HuwCampbell (see #9)

1.4.2 - 21.12.2016

• Changing grammar to accomodate indented functions

1.4.1 - 21.12.2016

• Changing grammar to try and fix the markup of function names preceeding type signatures

1.4.0 - 17.12.2016

• Manual merging of changes from haskell.tmbundle#18 by @sanssecours for several markup fixes (most importantly multi line type signatures (see #1))

1.3.0

• Replacing typescript initializer with json configuration
• Adding smart brackets

1.2.3

• PR from @Miguel-Fontes to
  • add markup for literate haskell files (see #7)
  • add markup for embedded haskell code in latex