feat(parsers): add jjdescription (#8625)

SUPPORTED_LANGUAGES.md

@@ -146,6 +146,7 @@ html_tags (queries only)[^html_tags] | unstable | `H IJ ` | @TravonteD
 [javascript](https://github.com/tree-sitter/tree-sitter-javascript) | unstable | `HFIJL` | @steelsojka
 [jinja](https://github.com/cathaysia/tree-sitter-jinja)[^jinja] | unstable | `H  J ` | @cathaysia
 [jinja_inline](https://github.com/cathaysia/tree-sitter-jinja)[^jinja_inline] | unstable | `H  J ` | @cathaysia
+[jjdescription](https://github.com/ribru17/tree-sitter-jjdescription) | stable | `H  J ` | @ribru17
 [jq](https://github.com/flurie/tree-sitter-jq) | unstable | `H  JL` | @ObserverOfTime
 [jsdoc](https://github.com/tree-sitter/tree-sitter-jsdoc) | unstable | `H    ` | @steelsojka
 [json](https://github.com/tree-sitter/tree-sitter-json) | unstable | `HFIJL` | @steelsojka

lua/nvim-treesitter/parsers.lua

@@ -1101,6 +1101,14 @@ return {
     readme_note = 'needed for full highlighting',
     tier = 2,
   },
+  jjdescription = {
+    install_info = {
+      revision = 'v1.0.3',
+      url = 'https://github.com/ribru17/tree-sitter-jjdescription',
+    },
+    maintainers = { '@ribru17' },
+    tier = 1,
+  },
   jq = {
     install_info = {
       revision = 'c204e36d2c3c6fce1f57950b12cabcc24e5cc4d9',

runtime/queries/jjdescription/highlights.scm

@@ -0,0 +1,42 @@
+[
+  (comment)
+  (generated_comment)
+] @comment
+
+(comment_content) @spell
+
+(subject) @markup.heading
+
+(type) @keyword
+
+(scope) @variable.parameter
+
+(change_id) @constant
+
+(filepath) @string.special.path
+
+((rest) @comment
+  (#not-lua-match? @comment "^diff"))
+
+"JJ: ignore-rest" @keyword.directive
+
+[
+  "("
+  ")"
+] @punctuation.bracket
+
+":" @punctuation.delimiter
+
+"!" @punctuation.special
+
+[
+  "A"
+  "C"
+] @diff.plus
+
+"D" @diff.minus
+
+[
+  "M"
+  "R"
+] @diff.delta

runtime/queries/jjdescription/injections.scm

@@ -0,0 +1,6 @@
+((comment_content) @injection.content
+  (#set! injection.language "comment"))
+
+((rest) @injection.content
+  (#lua-match? @injection.content "^diff")
+  (#set! injection.language "diff"))