feat(lang): Add config for nxml-mode

modules/languages/siren-xml.el

@@ -0,0 +1,27 @@
+;;; siren-xml.el --- jimeh's Emacs Siren: XML editing configuration.
+
+;;; Commentary:
+
+;; Basic configuration for XML editing.
+
+;;; Code:
+
+(require 'siren-prettier-js)
+(require 'siren-prog-mode)
+
+(use-package nxml-mode
+  :ensure nil ;; loaded from emacs built-ins
+  :hook (nxml-mode . siren-xml-setup)
+
+  :custom
+  (nxml-attribute-indent 2)
+  (nxml-child-indent 2)
+
+  :init
+  (defun siren-xml-setup ()
+    (run-hooks 'prog-mode-hook)
+    (setq tab-width 2)
+    (prettier-js-mode)))
+
+(provide 'siren-xml)
+;;; siren-xml.el ends here