Here is a simple patch to uncompress.el that allows it to support .tgz (tar gzip) files. I use it mainly from dired to uncompress and open the tar file. I don't know if it is kosher to change FSF files that are synced and I have no access to emacs source, so I have posted this to xemacs-beta in the hopes it will be useful to someone. Sean 1999-08-13 Sean MacLennan <seanm(a)storm.ca&gt; * uncompress.el (uncompress-while-visiting): added support for .tgz (tar gzip) files. --- xemacs/packages/lisp/os-utils/uncompress.el.orig Fri Aug 13 22:57:26 1999 +++ xemacs/packages/lisp/os-utils/uncompress.el Mon Aug 9 23:11:16 1999 ＠＠ -50,21 +50,25 ＠＠ (or (assoc "\\.Z$" auto-mode-alist) (setq auto-mode-alist (cons '("\\.Z$" . uncompress-while-visiting) auto-mode-alist))) -(or (assoc "\\.gz$" auto-mode-alist) +(or (assoc "\\.t?gz$" auto-mode-alist) (setq auto-mode-alist - (cons '("\\.gz$" . uncompress-while-visiting) auto-mode-alist))) + (cons '("\\.t?gz$" . uncompress-while-visiting) auto-mode-alist))) (defun uncompress-while-visiting () "Temporary \"major mode\" used for .Z and .gz files, to uncompress them. It then selects a major mode from the uncompressed file name and contents." - (if (and (not (null buffer-file-name)) - (string-match "\\.Z$" buffer-file-name)) - (set-visited-file-name - (substring buffer-file-name 0 (match-beginning 0))) - (if (and (not (null buffer-file-name)) - (string-match "\\.gz$" buffer-file-name)) - (set-visited-file-name - (substring buffer-file-name 0 (match-beginning 0))))) + (if (not (null buffer-file-name)) + (if (string-match "\\.Z$" buffer-file-name) + (set-visited-file-name + (substring buffer-file-name 0 (match-beginning 0))) + (if (string-match "\\.gz$" buffer-file-name) + (set-visited-file-name + (substring buffer-file-name 0 (match-beginning 0))) + (if (string-match "\\.tgz$" buffer-file-name) + (set-visited-file-name + (concat + (substring buffer-file-name 0 (match-beginning 0)) + ".tar")))))) (message "Uncompressing...") (let ((buffer-read-only nil)) (shell-command-on-region (point-min) (point-max) uncompress-program t)) -- Sean MacLennan A bad day running Linux, Ottawa, Canada Is better than a good day running windoze. http://www.storm.ca/~seanm