add Racket

.gitmodules

@@ -84,3 +84,7 @@
 [submodule "vendor/tree-sitter-clojure"]
 	path = vendor/tree-sitter-clojure
 	url = https://github.com/sogaiu/tree-sitter-clojure.git
+[submodule "vendor/tree-sitter-racket"]
+	path = vendor/tree-sitter-racket
+	url = https://github.com/tautologico/tree-sitter-racket.git
+	shallow = true

Cargo.toml

@@ -40,6 +40,7 @@ all = [
     "ocaml",
     "php",
     "python",
+    "racket",
     "ruby",
     "rust",
     "scala",
@@ -62,6 +63,7 @@ julia = []
 ocaml = []
 php = []
 python = []
+racket = []
 ruby = []
 rust = []
 scala = []

build.rs

@@ -36,6 +36,8 @@ fn main() {
         "php",
         #[cfg(feature = "python")]
         "python",
+        #[cfg(feature = "racket")]
+        "racket",
         #[cfg(feature = "ruby")]
         "ruby",
         #[cfg(feature = "rust")]

src/ffi.rs

@@ -35,6 +35,8 @@ extern "C" {
     fn tree_sitter_php() -> Language;
     #[cfg(feature = "python")]
     fn tree_sitter_python() -> Language;
+    #[cfg(feature = "racket")]
+    fn tree_sitter_racket() -> Language;
     #[cfg(feature = "ruby")]
     fn tree_sitter_ruby() -> Language;
     #[cfg(feature = "rust")]
@@ -81,6 +83,8 @@ pub fn filetype_to_language(filetype: &str) -> Option<Language> {
         "php" => tree_sitter_php,
         #[cfg(feature = "python")]
         "python" => tree_sitter_python,
+        #[cfg(feature = "racket")]
+        "racket" => tree_sitter_racket,
         #[cfg(feature = "ruby")]
         "ruby" => tree_sitter_ruby,
         #[cfg(feature = "rust")]