feat(lang): add devicetree (Flattened Device Tree Source) (#2329)

book/src/generated/lang-support.md

@@ -8,6 +8,7 @@
 | cpp | ✓ | ✓ | ✓ | `clangd` |
 | css | ✓ |  |  | `vscode-css-language-server` |
 | dart | ✓ |  | ✓ | `dart` |
+| devicetree | ✓ |  | ✓ |  |
 | dockerfile | ✓ |  |  | `docker-langserver` |
 | eex | ✓ |  |  |  |
 | ejs | ✓ |  |  |  |

languages.toml

@@ -1263,3 +1263,16 @@ indent = { tab-width = 4, unit = "\t" }
 [[grammar]]
 name = "hare"
 source = { git = "https://git.sr.ht/~ecmma/tree-sitter-hare", rev = "bc26a6a949f2e0d98b7bfc437d459b250900a165" }
+
+[[language]]
+name = "devicetree"
+scope = "source.devicetree"
+injection-regex = "(dtsi?|devicetree|fdt)"
+file-types = ["dts", "dtsi"]
+roots = []
+comment-token = "//"
+indent = { tab-width = 4, unit = "\t" }
+
+[[grammar]]
+name = "devicetree"
+source = { git = "https://github.com/joelspadin/tree-sitter-devicetree", rev = "877adbfa0174d25894c40fa75ad52d4515a36368" }

runtime/queries/devicetree/highlights.scm

@@ -0,0 +1,66 @@
+[
+  "/dts-v1/"
+  "/memreserve/"
+  "/delete-node/"
+  "/delete-property/"
+] @keyword
+
+[
+  "#define"
+  "#include"
+] @keyword.directive
+
+[
+  "!"
+  "~"
+  "-"
+  "+"
+  "*"
+  "/"
+  "%"
+  "||"
+  "&&"
+  "|"
+  "^"
+  "&"
+  "=="
+  "!="
+  ">"
+  ">="
+  "<="
+  ">"
+  "<<"
+  ">>"
+] @operator
+
+[
+  ","
+  ";"
+] @punctuation.delimiter
+
+[
+  "("
+  ")"
+  "{"
+  "}"
+  "<"
+  ">"
+] @punctuation.bracket
+
+(string_literal) @string
+
+(integer_literal) @constant.numeric.integer
+
+(call_expression
+  function: (identifier) @function)
+
+(labeled_item
+  label: (identifier) @label)
+
+(identifier) @variable
+
+(unit_address) @tag
+
+(reference) @constant
+
+(comment) @comment

runtime/queries/devicetree/indents.scm

@@ -0,0 +1,12 @@
+[
+  (node)
+  (byte_string_literal)
+  (parenthesized_expression)
+  (argument_list)
+] @indent
+
+[
+  "}"
+  "]"
+  ")"
+] @outdent