Move all crates to a top-level crates folder

Co-Authored-By: Max Brunsfeld <maxbrunsfeld@gmail.com>

crates/zed/src/language.rs

@@ -0,0 +1,36 @@
+use buffer::{HighlightMap, Language, LanguageRegistry};
+use parking_lot::Mutex;
+use rust_embed::RustEmbed;
+use std::{str, sync::Arc};
+use tree_sitter::Query;
+
+#[derive(RustEmbed)]
+#[folder = "languages"]
+struct LanguageDir;
+
+pub fn build_language_registry() -> LanguageRegistry {
+    let mut languages = LanguageRegistry::default();
+    languages.add(Arc::new(rust()));
+    languages
+}
+
+pub fn rust() -> Language {
+    let grammar = tree_sitter_rust::language();
+    let rust_config =
+        toml::from_slice(&LanguageDir::get("rust/config.toml").unwrap().data).unwrap();
+    Language {
+        config: rust_config,
+        grammar,
+        highlight_query: load_query(grammar, "rust/highlights.scm"),
+        brackets_query: load_query(grammar, "rust/brackets.scm"),
+        highlight_map: Mutex::new(HighlightMap::default()),
+    }
+}
+
+fn load_query(grammar: tree_sitter::Language, path: &str) -> Query {
+    Query::new(
+        grammar,
+        str::from_utf8(&LanguageDir::get(path).unwrap().data).unwrap(),
+    )
+    .unwrap()
+}