feat(lang): add kdl grammar (helix-editor#4481)

Author: greym0uth

book/src/generated/lang-support.md

@@ -60,6 +60,7 @@
 | jsonnet | ✓ |  |  | `jsonnet-language-server` |
 | jsx | ✓ | ✓ | ✓ | `typescript-language-server` |
 | julia | ✓ |  |  | `julia` |
+| kdl | ✓ |  |  |  |
 | kotlin | ✓ |  |  | `kotlin-language-server` |
 | latex | ✓ | ✓ |  | `texlab` |
 | lean | ✓ |  |  | `lean` |

languages.toml

@@ -1885,3 +1885,15 @@ grammar = "vhs"
 [[grammar]]
 name = "vhs"
 source = { git = "https://github.com/charmbracelet/tree-sitter-vhs", rev = "c6d81f34c011c29ee86dd73b45a8ecc9f2e2bdaf" }
+
+[[language]]
+name = "kdl"
+scope = "source.kdl"
+file-types = ["kdl"]
+roots = []
+comment-token = "//"
+injection-regex = "kdl"
+
+[[grammar]]
+name = "kdl"
+source = { git = "https://github.com/Unoqwy/tree-sitter-kdl", rev = "e1cd292c6d15df6610484e1d4b5c987ecad52373" }

runtime/queries/kdl/highlights.scm

@@ -0,0 +1,22 @@
+(comment) @comment
+(single_line_comment) @comment
+
+(node
+    name: (identifier) @function)
+(prop (identifier) @attribute)
+(type) @type
+
+(bare_identifier) @variable.other.member
+
+(keyword) @keyword
+
+(string) @string
+(number) @constant.numeric
+(boolean) @constant.builtin.boolean
+
+"." @punctuation.delimiter
+
+"=" @operator
+
+"{" @punctuation.bracket
+"}" @punctuation.bracket