[tree-sitter] Add TODO and hyperlink injections to Java

packages/language-java/lib/main.js

@@ -1,3 +1,24 @@
 exports.activate = () => {
-  // TODO: Injections for language-todo and language-hyperlink.
+  const TODO_PATTERN = /\b(TODO|FIXME|CHANGED|XXX|IDEA|HACK|NOTE|REVIEW|NB|BUG|QUESTION|COMBAK|TEMP|DEBUG|OPTIMIZE|WARNING)\b/;
+  const HYPERLINK_PATTERN = /\bhttps?:/
+
+  atom.grammars.addInjectionPoint('source.java', {
+    type: 'comment',
+    language: (node) => {
+      return TODO_PATTERN.test(node.text) ? 'todo' : undefined;
+    },
+    content: (node) => node,
+    languageScope: null
+  });
+
+  for (let type of ['string_literal', 'comment']) {
+    atom.grammars.addInjectionPoint('source.java', {
+      type,
+      language: (node) => {
+        return HYPERLINK_PATTERN.test(node.text) ? 'hyperlink' : undefined;
+      },
+      content: (node) => node,
+      languageScope: null
+    });
+  }
 };