Refactor feature/file-templates

This removes its dependency on the feature/snippets.

modules/feature/file-templates/autoload.el

@@ -73,6 +73,17 @@ evil is loaded and enabled)."
            (file-relative-name path doom-emacs-dir))
           ((abbreviate-file-name path)))))
 
+;;;###autoload
+(defun +file-template-p (rule)
+  "Return t if RULE applies to the current buffer."
+  (let ((pred (car rule))
+        (plist (cdr rule)))
+    (and (cond ((and (stringp pred) buffer-file-name) (string-match-p pred buffer-file-name))
+               ((symbolp pred) (eq major-mode pred)))
+         (or (not (plist-member plist :when))
+             (funcall (plist-get plist :when) buffer-file-name))
+         rule)))
+
 
 ;;
 ;; Commands