Commit: runtime(cabal): add missing haskell language editions

[Christian Brabandt]

runtime(cabal): add missing haskell language editions

Commit: https://github.com/vim/vim/commit/7da90de1cb6df8f2dcbab97d3c7b8b83fa0de13d
Author: Léana 江 <leana.j...@icloud.com>
Date: Thu Apr 30 18:00:28 2026 +0000

runtime(cabal): add missing haskell language editions

closes: https://github.com/vim/vim/issues/20097

Signed-off-by: Léana 江 <leana.j...@icloud.com>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/runtime/syntax/cabal.vim b/runtime/syntax/cabal.vim
index a1db25034..ddc905615 100644
--- a/runtime/syntax/cabal.vim
+++ b/runtime/syntax/cabal.vim
@@ -5,6 +5,8 @@
" Previous Maintainer: Vincent Berthoux <twin...@gmail.com>
" File Types: .cabal
" Last Change: 22 Oct 2022
+"
+" 2026 Apr 29 by Léana: add missing haskell language editions
" 2026 Apr 20 by Vim project: remove wrong oneline keyword #20018
"
" v1.6: Added support for foreign-libraries
@@ -193,7 +195,9 @@ syn match cabalVersionRegionB
\ contains=cabalStatementRegion,cabalVersionOperator,cabalVersion
\ /^\s*\%(cabal-\)\?version\s*:.*$/

-syn keyword cabalLanguage Haskell98 Haskell2010
+" See the following link for all Haskell language editions supported by Cabal.
+" https://cabal.readthedocs.io/en/stable/cabal-package-description-file.html#pkg-field-default-language
+syn keyword cabalLanguage Haskell98 Haskell2010 GHC2021 GHC2024

" title region
syn match cabalName contained /:\@<=.*/