conver-to-template function for typescrip and js treesit

lisp/init-typescript.el

@@ -28,4 +28,30 @@
     (add-to-list 'tree-sitter-major-mode-language-alist '(typescript-tsx-mode . tsx))))
 
 
+(defun creature/treesit-convert-to-template ()
+  "Conver the string at point to a template string by treesit."
+  (interactive)
+  (when (and (treesit-available-p) (treesit-language-at (point)))
+    (let* ((node (treesit-node-at (point)))
+           (node-type (treesit-node-type node))
+           (start nil)
+           (end nil))
+      (when (string= node-type "string_fragment")
+        (setq start (treesit-node-start node)
+              end (treesit-node-end node))
+        (save-restriction
+          (save-excursion
+            (goto-char start)
+            (backward-delete-char 1)
+            (insert "`")
+            (goto-char end)
+            (delete-char 1)
+            (insert "`")))))))
+
+(with-eval-after-load 'js
+  (define-key js-ts-mode-map (kbd "C-c '") #'creature/treesit-convert-to-template))
+(with-eval-after-load 'typescript-ts-mode
+  (define-key typescript-ts-base-mode-map (kbd "C-c '") #'creature/treesit-convert-to-template))
+
+
 (provide 'init-typescript)