Add Julia support

Fixes #284

build.rs

@@ -164,6 +164,11 @@ fn main() {
             src_dir: "vendor/tree-sitter-json-src",
             extra_files: vec![],
         },
+        TreeSitterParser {
+            name: "tree-sitter-julia",
+            src_dir: "vendor/tree-sitter-julia-src",
+            extra_files: vec!["scanner.c"],
+        },
         TreeSitterParser {
             name: "tree-sitter-kotlin",
             src_dir: "vendor/tree-sitter-kotlin-src",

src/diff/sliders.rs

@@ -64,7 +64,7 @@ fn prefer_outer_delimiter(language: guess_language::Language) -> bool {
         // languages have syntax like `foo(bar)` or `foo[bar]` where
         // the inner delimiter is more relevant.
         Bash | C | CPlusPlus | CSharp | Css | Dart | Elixir | Elm | Elvish | Gleam | Go
-        | Haskell | Html | Java | JavaScript | Jsx | Kotlin | Lua | Nix | OCaml
+        | Haskell | Html | Java | JavaScript | Jsx | Julia | Kotlin | Lua | Nix | OCaml
         | OCamlInterface | Perl | Php | Python | Ruby | Rust | Scala | Swift | Tsx | TypeScript
         | Yaml | Zig => false,
     }

src/parse/guess_language.rs

@@ -39,6 +39,7 @@ pub enum Language {
     Java,
     JavaScript,
     Json,
+    Julia,
     Jsx,
     Kotlin,
     Lua,
@@ -232,6 +233,7 @@ pub fn from_extension(extension: &OsStr) -> Option<Language> {
         | "mcmeta" | "tfstate" | "tfstate.backup" | "topojson" | "webapp" | "webmanifest" => {
             Some(Json)
         }
+        "jl" => Some(Julia),
         "kt" | "ktm" | "kts" => Some(Kotlin),
         "lua" => Some(Lua),
         "nix" => Some(Nix),

src/parse/tree_sitter_parser.rs

@@ -64,6 +64,7 @@ extern "C" {
     fn tree_sitter_java() -> ts::Language;
     fn tree_sitter_javascript() -> ts::Language;
     fn tree_sitter_json() -> ts::Language;
+    fn tree_sitter_julia() -> ts::Language;
     fn tree_sitter_kotlin() -> ts::Language;
     fn tree_sitter_lua() -> ts::Language;
     fn tree_sitter_nix() -> ts::Language;
@@ -445,6 +446,23 @@ pub fn from_language(language: guess::Language) -> TreeSitterConfig {
                 .unwrap(),
             }
         }
+        Julia => {
+            let language = unsafe { tree_sitter_julia() };
+            TreeSitterConfig {
+                name: "Julia",
+                language,
+                atom_nodes: vec![
+                    "string_literal",
+                    "prefixed_string_literal",
+                    "command_literal",
+                    "character_literal",
+                ]
+                .into_iter()
+                .collect(),
+                delimiter_tokens: vec![("{", "}"), ("[", "]"), ("(", ")")],
+                highlight_query: ts::Query::new(language, "").unwrap(),
+            }
+        }
         Kotlin => {
             let language = unsafe { tree_sitter_kotlin() };
             TreeSitterConfig {