WIP: Add nushell support

crates/zed/src/languages.rs

@@ -170,6 +170,7 @@ pub fn init(languages: Arc<LanguageRegistry>, node_runtime: Arc<dyn NodeRuntime>
     language("elm", tree_sitter_elm::language(), vec![]);
     language("glsl", tree_sitter_glsl::language(), vec![]);
     language("nix", tree_sitter_nix::language(), vec![]);
+    language("nu", tree_sitter_nu::language(), vec![]);
 }
 
 #[cfg(any(test, feature = "test-support"))]

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

@@ -0,0 +1,9 @@
+name = "Nu"
+path_suffixes = ["nu"]
+line_comment = "# "
+autoclose_before = ";:.,=}])>` \n\t\""
+brackets = [
+    { start = "{", end = "}", close = true, newline = true },
+    { start = "[", end = "]", close = true, newline = true },
+    { start = "(", end = ")", close = true, newline = true },
+]

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

@@ -0,0 +1,61 @@
+(string) @string
+(type) @type
+(value_path) @variable
+(comment) @comment
+
+(number_literal) @number
+(range from: (number_literal) @number)
+(range to: (number_literal) @number)
+
+(command cmd_name: (identifier) @function)
+(function_definition func_name: (identifier) @function)
+
+[
+    (variable_declaration name: (identifier))
+    (parameter (identifier))
+    (flag (flag_name))
+    (flag (flag_shorthand_name))
+    (record_entry entry_name: (identifier))
+    (block_args block_param: (identifier))
+] @property
+; (parameter (identifier) @variable.parameter) ; -- alternative highlighting group?
+
+(cmd_invocation) @embedded
+
+
+((identifier) @constant
+ (.match? @constant "^[A-Z][A-Z\\d_]*$"))
+
+[
+ "if"
+ "else"
+ "not"
+ "let"
+ "def"
+ "def-env"
+ "export"
+ "true"
+ "false"
+ "and"
+ "or"
+] @keyword
+
+[
+  ; "/" Not making / an operator may lead to better highlighting?
+  "$"
+  "|"
+  "+"
+  "-"
+  "*"
+  "="
+  "!="
+  "and"
+  "or"
+  "=="
+  ">"
+] @operator
+
+["."
+ ","
+ ";"
+] @delimiter