octref / language-haskell

Highlighting support for the Haskell language in visual studio code.

Haskell Language support

Adapated from to inclue syntaxes/haskell.json in source, so I can use Haskell in Shiki.

Support for the Haskell programming language in Visual Studio Code.

Syntax highlighting

Adds syntax highlighting support for Haskell (.hs and .lhs). This is a (now heavily) modified version of the syntax file from the Haskell TextMate bundle. Additionally there is support for Cabal files (.cabal) via a concoction of my own.

Also adds automatic indentation after where, do, -> etc. and surrounding brackets ([], {} etc)

Bugs

If you happen to notice bugs or have suggestions for improvements visit the issue section of the repository.

Themes

This extension provides TextMate scopes for use in syntax highlighting, but the colours displayed depend on the theme being used.
Unfortunately many themes have incomplete support for the different TextMate scopes, and as a result different tokens can end up with identical colours.

For a theme that supports all the scopes provided by this extension, see the Groovy Lambda theme.

Theme authors

I recently realized that I am woefully unaware of whether there are any themes with Haskell-specific rules and how changes to this extension affect such themes. If you are a theme author that wishes to use Haskell specific rules, or are aware of a theme with Haskell specific rules, feel free to get in touch.

With version 3.0.0 some new tm scopes were added, such that now record and GADT definitions can be distinguished. Let me know if there are any questions about the scope assignment in this extension or if there are further scope assigments you'd like to see added.

We now publish an automatically generated, complete list of the textmate scopes used in our grammars. You can find the lists of scopes in the scope-lists directory.