Add tree-sitter-elm

Cargo.lock

@@ -7989,6 +7989,16 @@ dependencies = [
  "tree-sitter",
 ]
 
+[[package]]
+name = "tree-sitter-elm"
+version = "5.6.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec83a2e1cfc69d03c8e73636e95662d6c6728539538d341b21251a77039fb94e"
+dependencies = [
+ "cc",
+ "tree-sitter",
+]
+
 [[package]]
 name = "tree-sitter-embedded-template"
 version = "0.20.0"
@@ -9543,6 +9553,7 @@ dependencies = [
  "tree-sitter-cpp",
  "tree-sitter-css",
  "tree-sitter-elixir",
+ "tree-sitter-elm",
  "tree-sitter-embedded-template",
  "tree-sitter-go",
  "tree-sitter-heex",

Cargo.toml

@@ -112,6 +112,7 @@ tree-sitter-c = "0.20.1"
 tree-sitter-cpp = "0.20.0"
 tree-sitter-css = { git = "https://github.com/tree-sitter/tree-sitter-css", rev = "769203d0f9abe1a9a691ac2b9fe4bb4397a73c51" }
 tree-sitter-elixir = { git = "https://github.com/elixir-lang/tree-sitter-elixir", rev = "4ba9dab6e2602960d95b2b625f3386c27e08084e" }
+tree-sitter-elm = "5.6.4"
 tree-sitter-embedded-template = "0.20.0"
 tree-sitter-go = { git = "https://github.com/tree-sitter/tree-sitter-go", rev = "aeb2f33b366fd78d5789ff104956ce23508b85db" }
 tree-sitter-heex = { git = "https://github.com/phoenixframework/tree-sitter-heex", rev = "2e1348c3cf2c9323e87c2744796cf3f3868aa82a" }

crates/zed/Cargo.toml

@@ -109,6 +109,7 @@ tree-sitter-c.workspace = true
 tree-sitter-cpp.workspace = true
 tree-sitter-css.workspace = true
 tree-sitter-elixir.workspace = true
+tree-sitter-elm.workspace = true
 tree-sitter-embedded-template.workspace = true
 tree-sitter-go.workspace = true
 tree-sitter-heex.workspace = true

crates/zed/src/languages.rs

@@ -152,6 +152,7 @@ pub fn init(languages: Arc<LanguageRegistry>, node_runtime: Arc<NodeRuntime>) {
         tree_sitter_php::language(),
         vec![Arc::new(php::IntelephenseLspAdapter::new(node_runtime))],
     );
+    language("elm", tree_sitter_elm::language(), vec![]);
 }
 
 #[cfg(any(test, feature = "test-support"))]

crates/zed/src/languages/elm/config.toml

@@ -0,0 +1,11 @@
+name = "Elm"
+path_suffixes = ["elm"]
+line_comment = "-- "
+block_comment = ["{- ", " -}"]
+brackets = [
+    { start = "{", end = "}", close = true, newline = true },
+    { start = "[", end = "]", close = true, newline = true },
+    { start = "(", end = ")", close = true, newline = true },
+    { start = "\"", end = "\"", close = true, newline = false, not_in = ["string"] },
+    { start = "'", end = "'", close = true, newline = false, not_in = ["string", "comment"] },
+]

crates/zed/src/languages/elm/highlights.scm

@@ -0,0 +1,71 @@
+[
+    "if"
+    "then"
+    "else"
+    "let"
+    "in"
+    (case)
+    (of)
+    (backslash)
+    (as)
+    (port)
+    (exposing)
+    (alias)
+    (import)
+    (module)
+    (type)
+ ] @keyword
+
+[
+    (arrow)
+    (eq)
+    (operator_identifier)
+    (colon)
+] @operator
+
+(type_annotation(lower_case_identifier) @function)
+(port_annotation(lower_case_identifier) @function)
+(function_declaration_left(lower_case_identifier) @function.definition)
+(function_call_expr target: (value_expr) @identifier)
+
+(exposed_value(lower_case_identifier) @function)
+(exposed_type(upper_case_identifier) @type)
+
+(field_access_expr(value_expr(value_qid)) @identifier)
+(lower_pattern) @variable
+(record_base_identifier) @identifier
+
+[
+    "("
+    ")"
+] @punctuation.bracket
+
+[
+    "|"
+    ","
+] @punctuation.delimiter
+
+(number_constant_expr) @constant
+
+(type_declaration(upper_case_identifier) @type)
+(type_ref) @type
+(type_alias_declaration name: (upper_case_identifier) @type)
+
+(union_variant(upper_case_identifier) @variant)
+(union_pattern) @variant
+(value_expr(upper_case_qid(upper_case_identifier)) @type)
+
+[
+    (line_comment)
+    (block_comment)
+] @comment
+
+(string_escape) @string.escape
+
+[
+    (open_quote)
+    (close_quote)
+    (regular_string_part)
+    (open_char)
+    (close_char)
+] @string

crates/zed/src/languages/elm/injections.scm

@@ -0,0 +1,2 @@
+((glsl_content) @content
+ (#set! "language" "glsl"))