diff options
author | Miles Bader <miles@gnu.org> | 2006-01-16 08:37:27 +0000 |
---|---|---|
committer | Miles Bader <miles@gnu.org> | 2006-01-16 08:37:27 +0000 |
commit | 41882805d6711e32ac0f066119226d84dbdedc13 (patch) | |
tree | 44f756cef3fbc4de2f229e93613a1a326da7f55d /lisp/tar-mode.el | |
parent | 6a2bd1a5019d2130c87ac5cf17f1322bf614b624 (diff) | |
parent | 28f74fdf77eaab2e9daf54e2d5b0b729c5201e4f (diff) | |
download | emacs-41882805d6711e32ac0f066119226d84dbdedc13.tar.gz |
Revision: miles@gnu.org--gnu-2005/emacs--unicode--0--patch-97
Merge from emacs--cvs-trunk--0
Patches applied:
* emacs--cvs-trunk--0 (patch 616-696)
- Add lisp/mh-e/.arch-inventory
- Update from CVS
- Merge from gnus--rel--5.10
- Update from CVS: lisp/smerge-mode.el: Add 'tools' to file keywords.
- lisp/gnus/ChangeLog: Remove duplicate entry
* gnus--rel--5.10 (patch 147-181)
- Update from CVS
- Merge from emacs--cvs-trunk--0
- Update from CVS: lisp/mml.el (mml-preview): Doc fix.
- Update from CVS: texi/message.texi: Fix default values.
- Update from CVS: texi/gnus.texi (RSS): Addition.
Diffstat (limited to 'lisp/tar-mode.el')
-rw-r--r-- | lisp/tar-mode.el | 73 |
1 files changed, 34 insertions, 39 deletions
diff --git a/lisp/tar-mode.el b/lisp/tar-mode.el index 5ac6834e395..933cc3969b9 100644 --- a/lisp/tar-mode.el +++ b/lisp/tar-mode.el @@ -101,7 +101,7 @@ :group 'data) (defcustom tar-anal-blocksize 20 - "*The blocksize of tar files written by Emacs, or nil, meaning don't care. + "The blocksize of tar files written by Emacs, or nil, meaning don't care. The blocksize of a tar file is not really the size of the blocks; rather, it is the number of blocks written with one system call. When tarring to a tape, this is the size of the *tape* blocks, but when writing to a file, it doesn't @@ -112,7 +112,7 @@ how many null padding bytes go on the end of the tar file." :group 'tar) (defcustom tar-update-datestamp nil - "*Non-nil means Tar mode should play fast and loose with sub-file datestamps. + "Non-nil means Tar mode should play fast and loose with sub-file datestamps. If this is true, then editing and saving a tar file entry back into its tar file will update its datestamp. If false, the datestamp is unchanged. You may or may not want this - it is good in that you can tell when a file @@ -123,7 +123,7 @@ the file never exists on disk." :group 'tar) (defcustom tar-mode-show-date nil - "*Non-nil means Tar mode should show the date/time of each subfile. + "Non-nil means Tar mode should show the date/time of each subfile. This information is useful, but it takes screen space away from file names." :type 'boolean :group 'tar) @@ -285,12 +285,11 @@ write-date, checksum, link-type, and link-name." (list hi lo)))) (defun tar-parse-octal-integer-safe (string) - (let ((L (length string))) - (if (= L 0) (error "empty string")) - (dotimes (i L) - (if (or (< (aref string i) ?0) - (> (aref string i) ?7)) - (error "`%c' is not an octal digit" (aref string i))))) + (if (zerop (length string)) (error "empty string")) + (mapc (lambda (c) + (if (or (< c ?0) (> c ?7)) + (error "`%c' is not an octal digit" c))) + string) (tar-parse-octal-integer string)) @@ -345,7 +344,7 @@ MODE should be an integer which is a file mode value." (gname (tar-header-gname tar-hblock)) (size (tar-header-size tar-hblock)) (time (tar-header-date tar-hblock)) - (ck (tar-header-checksum tar-hblock)) + ;; (ck (tar-header-checksum tar-hblock)) (type (tar-header-link-type tar-hblock)) (link-name (tar-header-link-name tar-hblock))) (format "%c%c%s%8s/%-8s%7s%s %s%s" @@ -557,7 +556,7 @@ or click mouse-2 on the file's line in the Tar mode buffer. Type `c' to copy an entry from the tar file into another file on disk. If you edit a sub-file of this archive (as with the `e' command) and -save it with Control-x Control-s, the contents of that buffer will be +save it with \\[save-buffer], the contents of that buffer will be saved back into the tar-file buffer; in this way you can edit a file inside of a tar archive without extracting it and re-archiving it. @@ -771,17 +770,17 @@ appear on disk when you save the tar-file's buffer." (defun tar-extract-other-window () - "*In Tar mode, find this entry of the tar file in another window." + "In Tar mode, find this entry of the tar file in another window." (interactive) (tar-extract t)) (defun tar-display-other-window () - "*In Tar mode, display this entry of the tar file in another window." + "In Tar mode, display this entry of the tar file in another window." (interactive) (tar-extract 'display)) (defun tar-view () - "*In Tar mode, view the tar file entry on this line." + "In Tar mode, view the tar file entry on this line." (interactive) (tar-extract 'view)) @@ -807,7 +806,7 @@ appear on disk when you save the tar-file's buffer." (defun tar-copy (&optional to-file) - "*In Tar mode, extract this entry of the tar file into a file on disk. + "In Tar mode, extract this entry of the tar file into a file on disk. If TO-FILE is not supplied, it is prompted for, defaulting to the name of the current tar-entry." (interactive (list (tar-read-file-name))) @@ -836,11 +835,11 @@ the current tar-entry." (message "Copied tar entry %s to %s" name to-file))) (defun tar-flag-deleted (p &optional unflag) - "*In Tar mode, mark this sub-file to be deleted from the tar file. + "In Tar mode, mark this sub-file to be deleted from the tar file. With a prefix argument, mark that many files." (interactive "p") (beginning-of-line) - (dotimes (i (if (< p 0) (- p) p)) + (dotimes (i (abs p)) (if (tar-current-descriptor unflag) ; barf if we're not on an entry-line. (progn (delete-char 1) @@ -849,13 +848,13 @@ With a prefix argument, mark that many files." (if (eobp) nil (forward-char 36))) (defun tar-unflag (p) - "*In Tar mode, un-mark this sub-file if it is marked to be deleted. + "In Tar mode, un-mark this sub-file if it is marked to be deleted. With a prefix argument, un-mark that many files forward." (interactive "p") (tar-flag-deleted p t)) (defun tar-unflag-backwards (p) - "*In Tar mode, un-mark this sub-file if it is marked to be deleted. + "In Tar mode, un-mark this sub-file if it is marked to be deleted. With a prefix argument, un-mark that many files backward." (interactive "p") (tar-flag-deleted (- p) t)) @@ -865,7 +864,7 @@ With a prefix argument, un-mark that many files backward." "Expunge the tar-entry specified by the current line." (let* ((descriptor (tar-current-descriptor)) (tokens (tar-desc-tokens descriptor)) - (line (tar-desc-data-start descriptor)) + ;; (line (tar-desc-data-start descriptor)) (name (tar-header-name tokens)) (size (tar-header-size tokens)) (link-p (tar-header-link-type tokens)) @@ -877,18 +876,16 @@ With a prefix argument, un-mark that many files backward." (beginning-of-line) (let ((line-start (point))) (end-of-line) (forward-char) - (let ((line-len (- (point) line-start))) - (delete-region line-start (point)) - ;; - ;; decrement the header-pointer to be in sync... - (setq tar-header-offset (- tar-header-offset line-len)))) + ;; decrement the header-pointer to be in sync... + (setq tar-header-offset (- tar-header-offset (- (point) line-start))) + (delete-region line-start (point))) ;; ;; delete the data pointer... (setq tar-parse-info (delq descriptor tar-parse-info)) ;; ;; delete the data from inside the file... (widen) - (let* ((data-start (+ start tar-header-offset -513)) + (let* ((data-start (+ start (- tar-header-offset (point-min)) -512)) (data-end (+ data-start 512 (ash (ash (+ size 511) -9) 9)))) (delete-region data-start data-end) ;; @@ -906,7 +903,7 @@ With a prefix argument, un-mark that many files backward." (defun tar-expunge (&optional noconfirm) - "*In Tar mode, delete all the archived files flagged for deletion. + "In Tar mode, delete all the archived files flagged for deletion. This does not modify the disk image; you must save the tar file itself for this to be permanent." (interactive) @@ -940,7 +937,7 @@ for this to be permanent." (defun tar-chown-entry (new-uid) - "*Change the user-id associated with this entry in the tar file. + "Change the user-id associated with this entry in the tar file. If this tar file was written by GNU tar, then you will be able to edit the user id as a string; otherwise, you must edit it as a number. You can force editing as a number by calling this with a prefix arg. @@ -968,7 +965,7 @@ for this to be permanent." (defun tar-chgrp-entry (new-gid) - "*Change the group-id associated with this entry in the tar file. + "Change the group-id associated with this entry in the tar file. If this tar file was written by GNU tar, then you will be able to edit the group id as a string; otherwise, you must edit it as a number. You can force editing as a number by calling this with a prefix arg. @@ -996,7 +993,7 @@ for this to be permanent." (concat (substring (format "%6o" new-gid) 0 6) "\000 "))))) (defun tar-rename-entry (new-name) - "*Change the name associated with this entry in the tar file. + "Change the name associated with this entry in the tar file. This does not modify the disk image; you must save the tar file itself for this to be permanent." (interactive @@ -1206,19 +1203,17 @@ Leaves the region wide." (size (if link-p 0 (tar-header-size tokens))) (data-end (+ start size)) (bbytes (ash tar-anal-blocksize 9)) - (pad-to (+ bbytes (* bbytes (/ (1- data-end) bbytes)))) + (pad-to (+ bbytes (* bbytes (/ (- data-end (point-min)) bbytes)))) (inhibit-read-only t) ; ## ) ;; If the padding after the last data is too long, delete some; ;; else insert some until we are padded out to the right number of blocks. ;; - (goto-char (+ (or tar-header-offset 0) data-end)) - (if (> (1+ (buffer-size)) (+ (or tar-header-offset 0) pad-to)) - (delete-region (+ (or tar-header-offset 0) pad-to) (1+ (buffer-size))) - (insert (make-string (- (+ (or tar-header-offset 0) pad-to) - (1+ (buffer-size))) - 0))) - ))) + (let ((goal-end (+ (or tar-header-offset 0) pad-to))) + (if (> (point-max) goal-end) + (delete-region goal-end (point-max)) + (goto-char (point-max)) + (insert (make-string (- goal-end (point-max)) ?\0))))))) ;; Used in write-file-hook to write tar-files out correctly. @@ -1244,5 +1239,5 @@ Leaves the region wide." (provide 'tar-mode) -;;; arch-tag: 8a585a4a-340e-42c2-89e7-d3b1013a4b78 +;; arch-tag: 8a585a4a-340e-42c2-89e7-d3b1013a4b78 ;;; tar-mode.el ends here |