(auto-mode-alist): Recognize .sgm, .sgml, .dtd.

diff --git a/lisp/files.el b/lisp/files.el
index 9d94626948fbd02f7ea7f3bd0fc43b735ad3b4c0..30f04dfd2eef5ae2a0395c88e6579b24da757846 100644 (file)
--- a/lisp/files.el
+++ b/lisp/files.el
@@ -742,6 +742,9 @@ run `normal-mode' explicitly."
                                  ("\\.lex\\'" . c-mode)
                                  ("\\.oak\\'" . scheme-mode)
                                  ("\\.scm.[0-9]*\\'" . scheme-mode)
+                                 ("\\.sgm\\'" sgml-mode)
+                                 ("\\.sgml\\'" sgml-mode)
+                                 ("\\.dtd\\'" sgml-mode)
                                  ;; .emacs following a directory delimiter
                                  ;; in either Unix or VMS syntax.
                                  ("[]>:/]\\..*emacs\\'" . emacs-lisp-mode)