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1472 lines
54 KiB
EmacsLisp
1472 lines
54 KiB
EmacsLisp
;;; arc-mode.el --- simple editing of archives
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;;; Copyright (C) 1995 Free Software Foundation, Inc.
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;; Author: Morten Welinder (terra@diku.dk)
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;; Keywords: archives msdog editing major-mode
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;; Favourite-brand-of-beer: None, I hate beer.
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;;; This file is part of GNU Emacs.
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;;;
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;;; GNU Emacs is free software; you can redistribute it and/or modify
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;;; it under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 2, or (at your option)
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;;; any later version.
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;;;
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;;; GNU Emacs is distributed in the hope that it will be useful,
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;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Emacs; see the file COPYING. If not, write to
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;;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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;;; Commentary:
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;;
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;; NAMING: "arc" is short for "archive" and does not refer specifically
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;; to files whose name end in ".arc"
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;;
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;; This code does not decode any files internally, although it does
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;; understand the directory level of the archives. For this reason,
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;; you should expect this code to need more fiddling than tar-mode.el
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;; (although it at present has fewer bugs :-) In particular, I have
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;; not tested this under Ms-Dog myself.
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;; -------------------------------------
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;; INTERACTION: arc-mode.el should play together with
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;;
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;; * ange-ftp.el: Remote archives (i.e., ones that ange-ftp has brought
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;; to you) are handled by doing all updates on a local
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;; copy. When you make changes to a remote file the
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;; changes will first take effect when the archive buffer
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;; is saved. You will be warned about this.
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;;
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;; * dos-fns.el: (Part of Emacs 19). You get automatic ^M^J <--> ^J
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;; conversion.
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;;
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;; arc-mode.el does not work well with crypt++.el; for the archives as
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;; such this could be fixed (but wouldn't be useful) by declaring such
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;; archives to be "remote". For the members this is a general Emacs
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;; problem that 19.29's file formats may fix.
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;; -------------------------------------
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;; ARCHIVE TYPES: Currently only the archives below are handled, but the
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;; structure for handling just about anything is in place.
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;;
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;; Arc Lzh Zip Zoo
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;; --------------------------------
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;; View listing Intern Intern Intern Intern
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;; Extract member Y Y Y Y
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;; Save changed member Y Y Y Y
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;; Add new member N N N N
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;; Delete member Y Y Y Y
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;; Rename member Y Y N N
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;; Chmod - Y Y -
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;; Chown - Y - -
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;; Chgrp - Y - -
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;;
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;; Special thanks to Bill Brodie <wbrodie@panix.com> for very useful tips
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;; on the first released version of this package.
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;;
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;; This code is partly based on tar-mode.el from Emacs.
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;; -------------------------------------
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;; ARCHIVE STRUCTURES:
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;; (This is mostly for myself.)
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;;
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;; ARC A series of (header,file). No interactions among members.
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;;
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;; LZH A series of (header,file). Headers are checksummed. No
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;; interaction among members.
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;;
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;; ZIP A series of (lheader,fil) followed by a "central directory"
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;; which is a series of (cheader) followed by an end-of-
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;; central-dir record possibly followed by junk. The e-o-c-d
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;; links to c-d. cheaders link to lheaders which are basically
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;; cut-down versions of the cheaders.
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;;
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;; ZOO An archive header followed by a series of (header,file).
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;; Each member header points to the next. The archive is
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;; terminated by a bogus header with a zero next link.
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;; -------------------------------------
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;; HOOKS: `foo' means one the the supported archive types.
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;;
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;; archive-mode-hook
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;; archive-foo-mode-hook
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;; archive-extract-hooks
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;;; Code:
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;; -------------------------------------------------------------------------
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;; Section: Configuration.
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(defvar archive-dos-members t
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"*If non-nil then recognize member files using ^M^J as line terminator
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and do The Right Thing.")
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(defvar archive-tmpdir
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(expand-file-name
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(make-temp-name (if (eq system-type 'ms-dos) "ar" "archive.tmp"))
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(or (getenv "TMPDIR") (getenv "TMP") "/tmp"))
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"*Directory for temporary files made by arc-mode.el")
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(defvar archive-remote-regexp "^/[^/:]*[^/:]:"
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"*Regexp recognizing archive files names that are not local (i.e., are
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not proper file names outside Emacs). A local copy a the archive will
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be used when updating.")
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(defvar archive-extract-hooks nil
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"*Hooks to run when an archive member has been extracted.")
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;; ------------------------------
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;; Arc archive configuration
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;; We always go via a local file since there seems to be no reliable way
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;; to extract to stdout without junk getting added.
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(defvar archive-arc-extract
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'("arc" "x")
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"*Program and its options to run in order to extract an arc file member
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to the current directory. Archive and member name will be added.")
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(defvar archive-arc-expunge
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'("arc" "d")
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"*Program and its options to run in order to delete arc file members.
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Archive and member names will be added.")
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(defvar archive-arc-write-file-member
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'("arc" "u")
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"*Program and its options to run in order to update an arc file member.
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Archive and member name will be added.")
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;; ------------------------------
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;; Lzh archive configuration
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(defvar archive-lzh-extract
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'("lha" "pq")
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"*Program and its options to run in order to extract an lzh file member
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to standard output. Archive and member name will be added.")
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(defvar archive-lzh-expunge
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'("lha" "d")
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"*Program and its options to run in order to delete lzh file members.
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Archive and member names will be added.")
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(defvar archive-lzh-write-file-member
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'("lha" "a")
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"*Program and its options to run in order to update an lzh file member.
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Archive and member name will be added.")
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;; ------------------------------
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;; Zip archive configuration
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(defvar archive-zip-use-pkzip (memq system-type '(ms-dos windows-nt))
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"*If non-nil then all zip options default to values suitable when using
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pkzip and pkunzip. Only set to true for msdog systems!")
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(defvar archive-zip-extract
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(if archive-zip-use-pkzip '("pkunzip" "-e") '("unzip" "-qq" "-c"))
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"*Program and its options to run in order to extract a zip file member
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to standard output. Archive and member name will be added.\n
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If `archive-zip-use-pkzip' is non-nil then this program is expected to
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extract to a file junking the directory part of the name.")
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;; For several reasons the latter behaviour is not desireable in general.
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;; (1) It uses more disk space. (2) Error checking is worse or non-
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;; existent. (3) It tends to do funny things with other systems' file
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;; names.
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(defvar archive-zip-expunge
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(if archive-zip-use-pkzip '("pkzip" "-d") '("zip" "-d" "-q"))
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"*Program and its options to run in order to delete zip file members.
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Archive and member names will be added.")
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(defvar archive-zip-update
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(if archive-zip-use-pkzip '("pkzip" "-u") '("zip" "-q"))
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"*Program and its options to run in order to update a zip file member.
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Options should ensure that specified directory will be put into the zip
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file. Archive and member name will be added.")
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(defvar archive-zip-update-case
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(if archive-zip-use-pkzip archive-zip-update '("zip" "-q" "-k"))
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"*Program and its options to run in order to update a case fiddled
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zip file member. Options should ensure that specified directory will
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be put into the zip file. Archive and member name will be added.")
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(defvar archive-zip-case-fiddle t
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"*If non-nil then zip file members are mapped to lower case if created
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by a system that under single case file names.")
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;; ------------------------------
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;; Zoo archive configuration
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(defvar archive-zoo-extract
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'("zoo" "xpq")
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"*Program and its options to run in order to extract a zoo file member
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to standard output. Archive and member name will be added.")
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(defvar archive-zoo-expunge
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'("zoo" "DqPP")
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"*Program and its options to run in order to delete zoo file members.
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Archive and member names will be added.")
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(defvar archive-zoo-write-file-member
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'("zoo" "a")
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"*Program and its options to run in order to update a zoo file member.
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Archive and member name will be added.")
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;; -------------------------------------------------------------------------
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;; Section: Variables
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(defvar archive-subtype nil "*Symbol describing archive type.")
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(defvar archive-file-list-start nil "*Position of first contents line.")
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(defvar archive-file-list-end nil "*Position just after last contents line.")
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(defvar archive-proper-file-start nil "*Position of real archive's start.")
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(defvar archive-read-only nil "*Non-nil if the archive is read-only on disk.")
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(defvar archive-remote nil "*Non-nil if the archive is outside file system.")
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(defvar archive-local-name nil "*Name of local copy of remote archive.")
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(defvar archive-mode-map nil "*Local keymap for archive mode listings.")
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(defvar archive-file-name-indent nil "*Column where file names start.")
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(defvar archive-alternate-display nil
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"*Non-nil when alternate information is shown.")
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(make-variable-buffer-local 'archive-alternate-display)
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(put 'archive-alternate-display 'permanent-local t)
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(defvar archive-superior-buffer nil "*In archive members, points to archive.")
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(put 'archive-superior-buffer 'permanent-local t)
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(defvar archive-subfile-mode nil "*Non-nil in archive member buffers.")
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(make-variable-buffer-local 'archive-subfile-mode)
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(put 'archive-subfile-mode 'permanent-local t)
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;; buffer-file-type is a per-buffer variable in the msdog configuration
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(if (boundp 'buffer-file-type) nil
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(defvar buffer-file-type nil
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"*Nil for dos-style text file, non-nil otherwise.")
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(make-variable-buffer-local 'buffer-file-type)
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(put 'buffer-file-type 'permanent-local t)
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(setq-default buffer-file-type nil))
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(defvar archive-subfile-dos nil
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"Negation of `buffer-file-type' which see.")
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(make-variable-buffer-local 'archive-subfile-dos)
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(put 'archive-subfile-dos 'permanent-local t)
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(defvar archive-files nil "Vector of file descriptors. Each descriptor is
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a vector of [ext-file-name int-file-name case-fiddled mode ...]")
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(make-variable-buffer-local 'archive-files)
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(defvar archive-lemacs
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(string-match "\\(Lucid\\|Xemacs\\)" emacs-version)
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"*Non-nil when running under under Lucid Emacs or Xemacs.")
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;; -------------------------------------------------------------------------
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;; Section: Support functions.
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(defsubst archive-name (suffix)
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(intern (concat "archive-" (symbol-name archive-subtype) "-" suffix)))
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(defun archive-l-e (str &optional len)
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"Convert little endian string/vector to integer. Alternatively, first
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argument may be a buffer position in the current buffer in which case a
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second arguemnt, length, should be supplied."
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(if (stringp str)
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(setq len (length str))
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(setq str (buffer-substring str (+ str len))))
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(let ((result 0)
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(i 0))
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(while (< i len)
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(setq i (1+ i)
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result (+ (ash result 8) (aref str (- len i)))))
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result))
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(defun archive-int-to-mode (mode)
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"Turn an integer like 0700 (i.e., 448) into a mode string like -rwx------"
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(let ((str (make-string 10 ?-)))
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(or (zerop (logand 16384 mode)) (aset str 0 ?d))
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(or (zerop (logand 8192 mode)) (aset str 0 ?c)) ; completeness
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(or (zerop (logand 256 mode)) (aset str 1 ?r))
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(or (zerop (logand 128 mode)) (aset str 2 ?w))
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(or (zerop (logand 64 mode)) (aset str 3 ?x))
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(or (zerop (logand 32 mode)) (aset str 4 ?r))
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(or (zerop (logand 16 mode)) (aset str 5 ?w))
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(or (zerop (logand 8 mode)) (aset str 6 ?x))
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(or (zerop (logand 4 mode)) (aset str 7 ?r))
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(or (zerop (logand 2 mode)) (aset str 8 ?w))
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(or (zerop (logand 1 mode)) (aset str 9 ?x))
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(or (zerop (logand 1024 mode)) (aset str 3 (if (zerop (logand 64 mode))
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?S ?s)))
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(or (zerop (logand 2048 mode)) (aset str 6 (if (zerop (logand 8 mode))
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?S ?s)))
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str))
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(defun archive-calc-mode (oldmode newmode &optional error)
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"From the integer OLDMODE and the string NEWMODE calculate a new file
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mode.\n
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NEWMODE may be an octal number including a leading zero in which case it
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will become the new mode.\n
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NEWMODE may also be a relative specification like \"og-rwx\" in which case
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OLDMODE will be modified accordingly just like chmod(2) would have done.\n
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If optional third argument ERROR is non-nil an error will be signaled if
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the mode is invalid. If ERROR is nil then nil will be returned."
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(cond ((string-match "^0[0-7]*$" newmode)
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(let ((result 0)
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(len (length newmode))
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(i 1))
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(while (< i len)
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(setq result (+ (lsh result 3) (aref newmode i) (- ?0))
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i (1+ i)))
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(logior (logand oldmode 65024) result)))
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((string-match "^\\([agou]+\\)\\([---+=]\\)\\([rwxst]+\\)$" newmode)
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(let ((who 0)
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(result oldmode)
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(op (aref newmode (match-beginning 2)))
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(bits 0)
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(i (match-beginning 3)))
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(while (< i (match-end 3))
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(let ((rwx (aref newmode i)))
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(setq bits (logior bits (cond ((= rwx ?r) 292)
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((= rwx ?w) 146)
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((= rwx ?x) 73)
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((= rwx ?s) 3072)
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((= rwx ?t) 512)))
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i (1+ i))))
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(while (< who (match-end 1))
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(let* ((whoc (aref newmode who))
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(whomask (cond ((= whoc ?a) 4095)
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((= whoc ?u) 1472)
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((= whoc ?g) 2104)
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((= whoc ?o) 7))))
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(if (= op ?=)
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(setq result (logand result (lognot whomask))))
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(if (= op ?-)
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(setq result (logand result (lognot (logand whomask bits))))
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(setq result (logior result (logand whomask bits)))))
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(setq who (1+ who)))
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result))
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(t
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(if error
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(error "Invalid mode specification: %s" newmode)))))
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(defun archive-dosdate (date)
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"Stringify dos packed DATE record."
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(let ((year (+ 1980 (logand (ash date -9) 127)))
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(month (logand (ash date -5) 15))
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(day (logand date 31)))
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(if (or (> month 12) (< month 1))
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""
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(format "%2d-%s-%d"
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day
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(aref ["Jan" "Feb" "Mar" "Apr" "May" "Jun"
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"Jul" "Aug" "Sep" "Oct" "Nov" "Dec"] (1- month))
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year))))
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(defun archive-dostime (time)
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"Stringify dos packed TIME record."
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(let ((hour (logand (ash time -11) 31))
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(minute (logand (ash time -5) 53))
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(second (* 2 (logand time 31)))) ; 2 seconds resolution
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(format "%02d:%02d:%02d" hour minute second)))
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;;(defun archive-unixdate (low high)
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;; "Stringify unix (LOW HIGH) date."
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;; (let ((str (current-time-string (cons high low))))
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;; (format "%s-%s-%s"
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;; (substring str 8 9)
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;; (substring str 4 7)
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;; (substring str 20 24))))
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;;(defun archive-unixtime (low high)
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;; "Stringify unix (LOW HIGH) time."
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;; (let ((str (current-time-string (cons high low))))
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;; (substring str 11 19)))
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(defun archive-get-lineno ()
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(if (>= (point) archive-file-list-start)
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(count-lines archive-file-list-start
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(save-excursion (beginning-of-line) (point)))
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0))
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(defun archive-get-descr (&optional noerror)
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"Return the descriptor vector for file at point. Do not signal an error
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if optional second argument NOERROR is non-nil."
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(let ((no (archive-get-lineno)))
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(if (and (>= (point) archive-file-list-start)
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(< no (length archive-files)))
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(let ((item (aref archive-files no)))
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(if (vectorp item)
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item
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(if (not noerror)
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(error "Entry is not a regular member of the archive"))))
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(if (not noerror)
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(error "Line does not describe a member of the archive")))))
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;; -------------------------------------------------------------------------
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;; Section: the mode definition
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;;;###autoload
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(defun archive-mode (&optional force)
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"Major mode for viewing an archive file as a dired-like listing of its
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contents. You can move around using the usual cursor motion commands.
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Letters no longer insert themselves.
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Type `e' to pull a file out of the archive and into its own buffer;
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or click mouse-2 on the file's line in the archive mode buffer.
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If you edit a sub-file of this archive (as with the `e' command) and
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save it, the contents of that buffer will be saved back into the
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archive.
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\\{archive-mode-map}"
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;; This is not interactive because you shouldn't be turning this
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;; mode on and off. You can corrupt things that way.
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(if (zerop (buffer-size))
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;; At present we cannot create archives from scratch
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(funcall default-major-mode)
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(if (and (not force) archive-files) nil
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(let* ((type (archive-find-type))
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(typename (copy-sequence (symbol-name type))))
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(aset typename 0 (upcase (aref typename 0)))
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(kill-all-local-variables)
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(make-local-variable 'archive-subtype)
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(setq archive-subtype type)
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;; Buffer contains treated image of file before the file contents
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(make-local-variable 'revert-buffer-function)
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(setq revert-buffer-function 'archive-mode-revert)
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(auto-save-mode 0)
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(make-local-variable 'local-write-file-hooks)
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(add-hook 'local-write-file-hooks 'archive-write-file)
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;; Real file contents is binary
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(make-local-variable 'require-final-newline)
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(setq require-final-newline nil)
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(make-local-variable 'enable-local-variables)
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(setq enable-local-variables nil)
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(setq buffer-file-type t)
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(make-local-variable 'archive-read-only)
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(setq archive-read-only (not (file-writable-p (buffer-file-name))))
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;; Should we use a local copy when accessing from outside Emacs?
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(make-local-variable 'archive-local-name)
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(make-local-variable 'archive-remote)
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(setq archive-remote (string-match archive-remote-regexp
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(buffer-file-name)))
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|
|
(setq major-mode 'archive-mode)
|
|
(setq mode-name (concat typename "-Archive"))
|
|
;; Run archive-foo-mode-hook and archive-mode-hook
|
|
(run-hooks (archive-name "mode-hook") 'archive-mode-hook)
|
|
(use-local-map archive-mode-map))
|
|
|
|
(make-local-variable 'archive-proper-file-start)
|
|
(make-local-variable 'archive-file-list-start)
|
|
(make-local-variable 'archive-file-list-end)
|
|
(make-local-variable 'archive-file-name-indent)
|
|
(archive-summarize)
|
|
(setq buffer-read-only t))))
|
|
|
|
;; Archive mode is suitable only for specially formatted data.
|
|
(put 'archive-mode 'mode-class 'special)
|
|
;; -------------------------------------------------------------------------
|
|
;; Section: Key maps
|
|
|
|
(if archive-mode-map nil
|
|
(setq archive-mode-map (make-keymap))
|
|
(suppress-keymap archive-mode-map)
|
|
(define-key archive-mode-map " " 'archive-next-line)
|
|
(define-key archive-mode-map "a" 'archive-alternate-display)
|
|
;;(define-key archive-mode-map "c" 'archive-copy)
|
|
(define-key archive-mode-map "d" 'archive-flag-deleted)
|
|
(define-key archive-mode-map "\C-d" 'archive-flag-deleted)
|
|
(define-key archive-mode-map "e" 'archive-extract)
|
|
(define-key archive-mode-map "f" 'archive-extract)
|
|
(define-key archive-mode-map "\C-m" 'archive-extract)
|
|
(define-key archive-mode-map "g" 'revert-buffer)
|
|
(define-key archive-mode-map "h" 'describe-mode)
|
|
(define-key archive-mode-map "m" 'archive-mark)
|
|
(define-key archive-mode-map "n" 'archive-next-line)
|
|
(define-key archive-mode-map "\C-n" 'archive-next-line)
|
|
(define-key archive-mode-map [down] 'archive-next-line)
|
|
(define-key archive-mode-map "o" 'archive-extract-other-window)
|
|
(define-key archive-mode-map "p" 'archive-previous-line)
|
|
(define-key archive-mode-map "\C-p" 'archive-previous-line)
|
|
(define-key archive-mode-map [up] 'archive-previous-line)
|
|
(define-key archive-mode-map "r" 'archive-rename-entry)
|
|
(define-key archive-mode-map "u" 'archive-unflag)
|
|
(define-key archive-mode-map "\M-\C-?" 'archive-unmark-all-files)
|
|
(define-key archive-mode-map "v" 'archive-view)
|
|
(define-key archive-mode-map "x" 'archive-expunge)
|
|
(define-key archive-mode-map "\177" 'archive-unflag-backwards)
|
|
(define-key archive-mode-map "E" 'archive-extract-other-window)
|
|
(define-key archive-mode-map "M" 'archive-chmod-entry)
|
|
(define-key archive-mode-map "G" 'archive-chgrp-entry)
|
|
(define-key archive-mode-map "O" 'archive-chown-entry)
|
|
|
|
(if archive-lemacs
|
|
(progn
|
|
;; Not a nice "solution" but it'll have to do
|
|
(define-key archive-mode-map "\C-xu" 'archive-undo)
|
|
(define-key archive-mode-map "\C-_" 'archive-undo))
|
|
(substitute-key-definition 'undo 'archive-undo
|
|
archive-mode-map global-map))
|
|
|
|
(define-key archive-mode-map
|
|
(if archive-lemacs 'button2 [mouse-2]) 'archive-mouse-extract)
|
|
|
|
(if archive-lemacs
|
|
() ; out of luck
|
|
;; Get rid of the Edit menu bar item to save space.
|
|
(define-key archive-mode-map [menu-bar edit] 'undefined)
|
|
|
|
(define-key archive-mode-map [menu-bar immediate]
|
|
(cons "Immediate" (make-sparse-keymap "Immediate")))
|
|
(define-key archive-mode-map [menu-bar immediate alternate]
|
|
'("Alternate Display" . archive-alternate-display))
|
|
(put 'archive-alternate-display 'menu-enable
|
|
'(boundp (archive-name "alternate-display")))
|
|
(define-key archive-mode-map [menu-bar immediate view]
|
|
'("View This File" . archive-view))
|
|
(define-key archive-mode-map [menu-bar immediate display]
|
|
'("Display in Other Window" . archive-display-other-window))
|
|
(define-key archive-mode-map [menu-bar immediate find-file-other-window]
|
|
'("Find in Other Window" . archive-extract-other-window))
|
|
(define-key archive-mode-map [menu-bar immediate find-file]
|
|
'("Find This File" . archive-extract))
|
|
|
|
(define-key archive-mode-map [menu-bar mark]
|
|
(cons "Mark" (make-sparse-keymap "Mark")))
|
|
(define-key archive-mode-map [menu-bar mark unmark-all]
|
|
'("Unmark All" . archive-unmark-all-files))
|
|
(define-key archive-mode-map [menu-bar mark deletion]
|
|
'("Flag" . archive-flag-deleted))
|
|
(define-key archive-mode-map [menu-bar mark unmark]
|
|
'("Unflag" . archive-unflag))
|
|
(define-key archive-mode-map [menu-bar mark mark]
|
|
'("Mark" . archive-mark))
|
|
|
|
(define-key archive-mode-map [menu-bar operate]
|
|
(cons "Operate" (make-sparse-keymap "Operate")))
|
|
(define-key archive-mode-map [menu-bar operate chown]
|
|
'("Change Owner..." . archive-chown-entry))
|
|
(put 'archive-chown-entry 'menu-enable
|
|
'(fboundp (archive-name "chown-entry")))
|
|
(define-key archive-mode-map [menu-bar operate chgrp]
|
|
'("Change Group..." . archive-chgrp-entry))
|
|
(put 'archive-chgrp-entry 'menu-enable
|
|
'(fboundp (archive-name "chgrp-entry")))
|
|
(define-key archive-mode-map [menu-bar operate chmod]
|
|
'("Change Mode..." . archive-chmod-entry))
|
|
(put 'archive-chmod-entry 'menu-enable
|
|
'(fboundp (archive-name "chmod-entry")))
|
|
(define-key archive-mode-map [menu-bar operate rename]
|
|
'("Rename to..." . archive-rename-entry))
|
|
(put 'archive-rename-entry 'menu-enable
|
|
'(fboundp (archive-name "rename-entry")))
|
|
;;(define-key archive-mode-map [menu-bar operate copy]
|
|
;; '("Copy to..." . archive-copy))
|
|
(define-key archive-mode-map [menu-bar operate expunge]
|
|
'("Expunge Marked Files" . archive-expunge))
|
|
))
|
|
|
|
(let* ((item1 '(archive-subfile-mode " Archive"))
|
|
(item2 '(archive-subfile-dos " Dos"))
|
|
(items (if (memq system-type '(ms-dos windows-nt))
|
|
(list item1) ; msdog has its own indicator
|
|
(list item1 item2))))
|
|
(or (member item1 minor-mode-alist)
|
|
(setq minor-mode-alist (append items minor-mode-alist))))
|
|
;; -------------------------------------------------------------------------
|
|
(defun archive-find-type ()
|
|
(widen)
|
|
(goto-char (point-min))
|
|
;; The funny [] here make it unlikely that the .elc file will be treated
|
|
;; as an archive by other software.
|
|
(let (case-fold-search)
|
|
(cond ((looking-at "[P]K\003\004") 'zip)
|
|
((looking-at "..-l[hz][0-9]-") 'lzh)
|
|
((looking-at "....................[\334]\247\304\375") 'zoo)
|
|
((and (looking-at "\C-z") ; signature too simple, IMHO
|
|
(string-match "\\.[aA][rR][cC]$"
|
|
(or buffer-file-name (buffer-name))))
|
|
'arc)
|
|
(t (error "Buffer format not recognized.")))))
|
|
;; -------------------------------------------------------------------------
|
|
(defun archive-summarize ()
|
|
"Parse the contents of the archive file in the current buffer.
|
|
Place a dired-like listing on the front;
|
|
then narrow to it, so that only that listing
|
|
is visible (and the real data of the buffer is hidden)."
|
|
(widen)
|
|
(let (buffer-read-only)
|
|
(message "Parsing archive file...")
|
|
(buffer-disable-undo (current-buffer))
|
|
(setq archive-files (funcall (archive-name "summarize")))
|
|
(message "Parsing archive file...done.")
|
|
(setq archive-proper-file-start (point-marker))
|
|
(narrow-to-region (point-min) (point))
|
|
(set-buffer-modified-p nil)
|
|
(buffer-enable-undo))
|
|
(goto-char archive-file-list-start)
|
|
(archive-next-line 0))
|
|
|
|
(defun archive-resummarize ()
|
|
"Recreate the contents listing of an archive."
|
|
(let ((modified (buffer-modified-p))
|
|
(no (archive-get-lineno))
|
|
buffer-read-only)
|
|
(widen)
|
|
(delete-region (point-min) archive-proper-file-start)
|
|
(archive-summarize)
|
|
(set-buffer-modified-p modified)
|
|
(goto-char archive-file-list-start)
|
|
(archive-next-line no)))
|
|
|
|
(defun archive-summarize-files (files)
|
|
"Insert a desciption of a list of files annotated with proper mouse face"
|
|
(setq archive-file-list-start (point-marker))
|
|
(setq archive-file-name-indent (if files (aref (car files) 1) 0))
|
|
;; We don't want to do an insert for each element since that takes too
|
|
;; long when the archive -- which has to be moved in memory -- is large.
|
|
(insert
|
|
(apply
|
|
(function concat)
|
|
(mapcar
|
|
(function
|
|
(lambda (fil)
|
|
;; Using `concat' here copies the text also, so we can add
|
|
;; properties without problems.
|
|
(let ((text (concat (aref fil 0) "\n")))
|
|
(if archive-lemacs
|
|
() ; out of luck
|
|
(put-text-property (aref fil 1) (aref fil 2)
|
|
'mouse-face 'highlight
|
|
text))
|
|
text)))
|
|
files)))
|
|
(setq archive-file-list-end (point-marker)))
|
|
|
|
(defun archive-alternate-display ()
|
|
"Toggle alternative display. To avoid very long lines some archive mode
|
|
don't show all information. This function changes the set of information
|
|
shown for each files."
|
|
(interactive)
|
|
(setq archive-alternate-display (not archive-alternate-display))
|
|
(archive-resummarize))
|
|
;; -------------------------------------------------------------------------
|
|
;; Section: Local archive copy handling
|
|
|
|
(defun archive-maybe-copy (archive)
|
|
(if archive-remote
|
|
(let ((start (point-max)))
|
|
(setq archive-local-name (expand-file-name
|
|
(file-name-nondirectory archive)
|
|
archive-tmpdir))
|
|
(make-directory archive-tmpdir t)
|
|
(save-restriction
|
|
(widen)
|
|
(write-region start (point-max) archive-local-name nil 'nomessage))
|
|
archive-local-name)
|
|
(if (buffer-modified-p) (save-buffer))
|
|
archive))
|
|
|
|
(defun archive-maybe-update (unchanged)
|
|
(if archive-remote
|
|
(let ((name archive-local-name)
|
|
(modified (buffer-modified-p))
|
|
buffer-read-only)
|
|
(if unchanged nil
|
|
(erase-buffer)
|
|
(insert-file-contents name)
|
|
(archive-mode t))
|
|
(archive-delete-local name)
|
|
(if (not unchanged)
|
|
(message "Archive file must be saved for changes to take effect"))
|
|
(set-buffer-modified-p (or modified (not unchanged))))))
|
|
|
|
(defun archive-delete-local (name)
|
|
"Delete (robust) the file NAME and its parents up to and including the
|
|
value of `archive-tmpdir'."
|
|
(let ((again t)
|
|
(top (directory-file-name (file-name-as-directory archive-tmpdir))))
|
|
(condition-case nil
|
|
(delete-file name)
|
|
(error nil))
|
|
(while again
|
|
(setq name (directory-file-name (file-name-directory name)))
|
|
(condition-case nil
|
|
(delete-directory name)
|
|
(error nil))
|
|
(if (string= name top) (setq again nil)))))
|
|
;; -------------------------------------------------------------------------
|
|
;; Section: Member extraction
|
|
|
|
(defun archive-mouse-extract (event)
|
|
"Extract a file whose name you click on."
|
|
(interactive "e")
|
|
(mouse-set-point event)
|
|
(switch-to-buffer
|
|
(save-excursion
|
|
(archive-extract)
|
|
(current-buffer))))
|
|
|
|
(defun archive-extract (&optional other-window-p)
|
|
"In archive mode, extract this entry of the archive into its own buffer."
|
|
(interactive)
|
|
(let* ((view-p (eq other-window-p 'view))
|
|
(descr (archive-get-descr))
|
|
(ename (aref descr 0))
|
|
(iname (aref descr 1))
|
|
(archive-buffer (current-buffer))
|
|
(arcdir default-directory)
|
|
(archive (buffer-file-name))
|
|
(arcname (file-name-nondirectory archive))
|
|
(bufname (concat (file-name-nondirectory iname) " (" arcname ")"))
|
|
(extractor (archive-name "extract"))
|
|
(read-only-p (or archive-read-only view-p))
|
|
(buffer (get-buffer bufname))
|
|
(just-created nil))
|
|
(if buffer
|
|
nil
|
|
(setq archive (archive-maybe-copy archive))
|
|
(setq buffer (get-buffer-create bufname))
|
|
(setq just-created t)
|
|
(save-excursion
|
|
(set-buffer buffer)
|
|
(setq buffer-file-name
|
|
(expand-file-name (concat arcname ":" iname)))
|
|
(setq buffer-file-truename
|
|
(abbreviate-file-name buffer-file-name))
|
|
;; Set the default-directory to the dir of the superior buffer.
|
|
(setq default-directory arcdir)
|
|
(make-local-variable 'archive-superior-buffer)
|
|
(setq archive-superior-buffer archive-buffer)
|
|
(make-local-variable 'local-write-file-hooks)
|
|
(add-hook 'local-write-file-hooks 'archive-write-file-member)
|
|
(setq archive-subfile-mode descr)
|
|
(setq archive-subfile-dos nil
|
|
buffer-file-type t)
|
|
(if (fboundp extractor)
|
|
(funcall extractor archive ename)
|
|
(archive-*-extract archive ename (symbol-value extractor)))
|
|
(if archive-dos-members (archive-check-dos))
|
|
(goto-char (point-min))
|
|
(rename-buffer bufname)
|
|
(setq buffer-read-only read-only-p)
|
|
(setq buffer-undo-list nil)
|
|
(set-buffer-modified-p nil)
|
|
(setq buffer-saved-size (buffer-size))
|
|
(normal-mode)
|
|
;; Just in case an archive occurs inside another archive.
|
|
(if (eq major-mode 'archive-mode)
|
|
(setq archive-remote t))
|
|
(run-hooks 'archive-extract-hooks))
|
|
(archive-maybe-update t))
|
|
(if view-p
|
|
(progn
|
|
(view-buffer buffer)
|
|
(and just-created (setq view-exit-action 'kill-buffer)))
|
|
(if (eq other-window-p 'display)
|
|
(display-buffer buffer)
|
|
(if other-window-p
|
|
(switch-to-buffer-other-window buffer)
|
|
(switch-to-buffer buffer))))))
|
|
|
|
(defun archive-*-extract (archive name command)
|
|
(let* ((default-directory (file-name-as-directory archive-tmpdir))
|
|
(tmpfile (expand-file-name (file-name-nondirectory name)
|
|
default-directory)))
|
|
(make-directory (directory-file-name default-directory) t)
|
|
(apply 'call-process
|
|
(car command)
|
|
nil
|
|
nil
|
|
nil
|
|
(append (cdr command) (list archive name)))
|
|
(insert-file-contents tmpfile)
|
|
(archive-delete-local tmpfile)))
|
|
|
|
(defun archive-extract-by-stdout (archive name command)
|
|
(let ((binary-process-output t)) ; for Ms-Dos
|
|
(apply 'call-process
|
|
(car command)
|
|
nil
|
|
t
|
|
nil
|
|
(append (cdr command) (list archive name)))))
|
|
|
|
(defun archive-extract-other-window ()
|
|
"In archive mode, find this member in another window."
|
|
(interactive)
|
|
(archive-extract t))
|
|
|
|
(defun archive-display-other-window ()
|
|
"In archive mode, display this member in another window."
|
|
(interactive)
|
|
(archive-extract 'display))
|
|
|
|
(defun archive-view ()
|
|
"In archive mode, view the member on this line."
|
|
(interactive)
|
|
(archive-extract 'view))
|
|
|
|
(defun archive-add-new-member (arcbuf name)
|
|
"Add the file in the current buffer to the archive in ARCBUF naming it
|
|
NAME."
|
|
(interactive
|
|
(list (get-buffer
|
|
(read-buffer "Buffer containing archive: "
|
|
;; Find first archive buffer and suggest that
|
|
(let ((bufs (buffer-list)))
|
|
(while (and bufs (not (eq (save-excursion
|
|
(set-buffer (car bufs))
|
|
major-mode)
|
|
'archive-mode)))
|
|
(setq bufs (cdr bufs)))
|
|
(if bufs
|
|
(car bufs)
|
|
(error "There are no archive buffers")))
|
|
t))
|
|
(read-string "File name in archive: "
|
|
(if buffer-file-name
|
|
(file-name-nondirectory buffer-file-name)
|
|
""))))
|
|
(save-excursion
|
|
(set-buffer arcbuf)
|
|
(or (eq major-mode 'archive-mode)
|
|
(error "Buffer is not an archive buffer"))
|
|
(if archive-read-only
|
|
(error "Archive is read-only")))
|
|
(if (eq arcbuf (current-buffer))
|
|
(error "An archive buffer cannot be added to itself"))
|
|
(if (string= name "")
|
|
(error "Archive members may not be given empty names"))
|
|
(let ((func (save-excursion (set-buffer arcbuf)
|
|
(archive-name "add-new-member")))
|
|
(membuf (current-buffer)))
|
|
(if (fboundp func)
|
|
(save-excursion
|
|
(set-buffer arcbuf)
|
|
(funcall func buffer-file-name membuf name))
|
|
(error "Adding a new member is not supported for this archive type"))))
|
|
;; -------------------------------------------------------------------------
|
|
;; Section: IO stuff
|
|
|
|
(defun archive-check-dos (&optional force)
|
|
"*If this looks like a buffer with ^M^J as line terminator then remove
|
|
those ^Ms and set archive-subfile-dos."
|
|
(save-restriction
|
|
(widen)
|
|
(save-excursion
|
|
(goto-char (point-min))
|
|
(setq archive-subfile-dos
|
|
(or force (not (search-forward-regexp "[^\r]\n" nil t))))
|
|
(setq buffer-file-type (not archive-subfile-dos))
|
|
(if archive-subfile-dos
|
|
(let ((modified (buffer-modified-p)))
|
|
(buffer-disable-undo (current-buffer))
|
|
(goto-char (point-min))
|
|
(while (search-forward "\r\n" nil t)
|
|
(replace-match "\n"))
|
|
(buffer-enable-undo)
|
|
(set-buffer-modified-p modified))))))
|
|
|
|
(defun archive-write-file-member ()
|
|
(if archive-subfile-dos
|
|
(save-restriction
|
|
(widen)
|
|
(save-excursion
|
|
(goto-char (point-min))
|
|
;; We don't want our ^M^J <--> ^J changes to show in the undo list
|
|
(let ((undo-list buffer-undo-list))
|
|
(unwind-protect
|
|
(progn
|
|
(setq buffer-undo-list t)
|
|
(while (search-forward "\n" nil t)
|
|
(replace-match "\r\n"))
|
|
(setq archive-subfile-dos nil)
|
|
(setq buffer-file-type t)
|
|
;; OK, we're now have explicit ^M^Js -- save and re-unixfy
|
|
(archive-write-file-member))
|
|
(progn
|
|
(archive-check-dos t)
|
|
(setq buffer-undo-list undo-list))))
|
|
t))
|
|
(save-excursion
|
|
(save-restriction
|
|
(message "Updating archive...")
|
|
(widen)
|
|
(let ((writer (save-excursion (set-buffer archive-superior-buffer)
|
|
(archive-name "write-file-member")))
|
|
(archive (save-excursion (set-buffer archive-superior-buffer)
|
|
(buffer-file-name))))
|
|
(if (fboundp writer)
|
|
(funcall writer archive archive-subfile-mode)
|
|
(archive-*-write-file-member archive
|
|
archive-subfile-mode
|
|
(symbol-value writer))))
|
|
(set-buffer-modified-p nil)
|
|
(message "Updating archive...done")
|
|
(set-buffer archive-superior-buffer)
|
|
(revert-buffer)
|
|
t))))
|
|
|
|
(defun archive-*-write-file-member (archive descr command)
|
|
(let* ((ename (aref descr 0))
|
|
(tmpfile (expand-file-name ename archive-tmpdir))
|
|
(top (directory-file-name (file-name-as-directory archive-tmpdir)))
|
|
(default-directory (file-name-as-directory top)))
|
|
(unwind-protect
|
|
(progn
|
|
(make-directory (file-name-directory tmpfile) t)
|
|
(write-region (point-min) (point-max) tmpfile nil 'nomessage)
|
|
(if (aref descr 3)
|
|
;; Set the file modes, but make sure we can read it.
|
|
(set-file-modes tmpfile (logior ?\400 (aref descr 3))))
|
|
(let ((exitcode (apply 'call-process
|
|
(car command)
|
|
nil
|
|
nil
|
|
nil
|
|
(append (cdr command) (list archive ename)))))
|
|
(if (equal exitcode 0)
|
|
nil
|
|
(error "Updating was unsuccessful (%S)" exitcode))))
|
|
(archive-delete-local tmpfile))))
|
|
|
|
(defun archive-write-file ()
|
|
(save-excursion
|
|
(write-region archive-proper-file-start (point-max) buffer-file-name nil t)
|
|
(set-buffer-modified-p nil)
|
|
t))
|
|
;; -------------------------------------------------------------------------
|
|
;; Section: Marking and unmarking.
|
|
|
|
(defun archive-flag-deleted (p &optional type)
|
|
"In archive mode, mark this member to be deleted from the archive.
|
|
With a prefix argument, mark that many files."
|
|
(interactive "p")
|
|
(or type (setq type ?D))
|
|
(beginning-of-line)
|
|
(let ((sign (if (>= p 0) +1 -1))
|
|
(modified (buffer-modified-p))
|
|
buffer-read-only)
|
|
(while (not (zerop p))
|
|
(if (archive-get-descr t)
|
|
(progn
|
|
(delete-char 1)
|
|
(insert type)))
|
|
(forward-line sign)
|
|
(setq p (- p sign)))
|
|
(set-buffer-modified-p modified))
|
|
(archive-next-line 0))
|
|
|
|
(defun archive-unflag (p)
|
|
"In archive mode, un-mark this member if it is marked to be deleted.
|
|
With a prefix argument, un-mark that many files forward."
|
|
(interactive "p")
|
|
(archive-flag-deleted p ? ))
|
|
|
|
(defun archive-unflag-backwards (p)
|
|
"In archive mode, un-mark this member if it is marked to be deleted.
|
|
With a prefix argument, un-mark that many members backward."
|
|
(interactive "p")
|
|
(archive-flag-deleted (- p) ? ))
|
|
|
|
(defun archive-unmark-all-files ()
|
|
"Remove all marks."
|
|
(interactive)
|
|
(let ((modified (buffer-modified-p))
|
|
buffer-read-only)
|
|
(save-excursion
|
|
(goto-char archive-file-list-start)
|
|
(while (< (point) archive-file-list-end)
|
|
(or (= (following-char) ? )
|
|
(progn (delete-char 1) (insert ? )))
|
|
(forward-line 1)))
|
|
(set-buffer-modified-p modified)))
|
|
|
|
(defun archive-mark (p)
|
|
"In archive mode, mark this member for group operations.
|
|
With a prefix argument, mark that many members.
|
|
Use \\[archive-unmark-all-files] to remove all marks."
|
|
(interactive "p")
|
|
(archive-flag-deleted p ?*))
|
|
|
|
(defun archive-get-marked (mark &optional default)
|
|
(let (files)
|
|
(save-excursion
|
|
(goto-char archive-file-list-start)
|
|
(while (< (point) archive-file-list-end)
|
|
(if (= (following-char) mark)
|
|
(setq files (cons (archive-get-descr) files)))
|
|
(forward-line 1)))
|
|
(or (nreverse files)
|
|
(and default
|
|
(list (archive-get-descr))))))
|
|
;; -------------------------------------------------------------------------
|
|
;; Section: Operate
|
|
|
|
(defun archive-next-line (p)
|
|
(interactive "p")
|
|
(forward-line p)
|
|
(or (eobp)
|
|
(forward-char archive-file-name-indent)))
|
|
|
|
(defun archive-previous-line (p)
|
|
(interactive "p")
|
|
(archive-next-line (- p)))
|
|
|
|
(defun archive-chmod-entry (new-mode)
|
|
"Change the protection bits associated with all marked or this member
|
|
in the archive.\n\
|
|
The new protection bits can either be specified as an octal number or
|
|
as a relative change like \"g+rw\" as for chmod(2)"
|
|
(interactive "sNew mode (octal or relative): ")
|
|
(if archive-read-only (error "Archive is read-only"))
|
|
(let ((func (archive-name "chmod-entry")))
|
|
(if (fboundp func)
|
|
(progn
|
|
(funcall func new-mode (archive-get-marked ?* t))
|
|
(archive-resummarize))
|
|
(error "Setting mode bits is not supported for this archive type"))))
|
|
|
|
(defun archive-chown-entry (new-uid)
|
|
"Change the owner of all marked or this member."
|
|
(interactive "nNew uid: ")
|
|
(if archive-read-only (error "Archive is read-only"))
|
|
(let ((func (archive-name "chown-entry")))
|
|
(if (fboundp func)
|
|
(progn
|
|
(funcall func new-uid (archive-get-marked ?* t))
|
|
(archive-resummarize))
|
|
(error "Setting owner is not supported for this archive type"))))
|
|
|
|
(defun archive-chgrp-entry (new-gid)
|
|
"Change the group of all marked or this member."
|
|
(interactive "nNew gid: ")
|
|
(if archive-read-only (error "Archive is read-only"))
|
|
(let ((func (archive-name "chgrp-entry")))
|
|
(if (fboundp func)
|
|
(progn
|
|
(funcall func new-gid (archive-get-marked ?* t))
|
|
(archive-resummarize))
|
|
(error "Setting group is not supported for this archive type"))))
|
|
|
|
(defun archive-expunge ()
|
|
"Do the flagged deletions."
|
|
(interactive)
|
|
(let (files)
|
|
(save-excursion
|
|
(goto-char archive-file-list-start)
|
|
(while (< (point) archive-file-list-end)
|
|
(if (= (following-char) ?D)
|
|
(setq files (cons (aref (archive-get-descr) 0) files)))
|
|
(forward-line 1)))
|
|
(setq files (nreverse files))
|
|
(and files
|
|
(or (not archive-read-only)
|
|
(error "Archive is read-only"))
|
|
(or (yes-or-no-p (format "Really delete %d member%s? "
|
|
(length files)
|
|
(if (null (cdr files)) "" "s")))
|
|
(error "Operation aborted"))
|
|
(let ((archive (archive-maybe-copy (buffer-file-name)))
|
|
(expunger (archive-name "expunge")))
|
|
(if (fboundp expunger)
|
|
(funcall expunger archive files)
|
|
(archive-*-expunge archive files (symbol-value expunger)))
|
|
(archive-maybe-update nil)
|
|
(if archive-remote
|
|
(archive-resummarize)
|
|
(revert-buffer))))))
|
|
|
|
(defun archive-*-expunge (archive files command)
|
|
(apply 'call-process
|
|
(car command)
|
|
nil
|
|
nil
|
|
nil
|
|
(append (cdr command) (cons archive files))))
|
|
|
|
(defun archive-rename-entry (newname)
|
|
"Change the name associated with this entry in the tar file."
|
|
(interactive "sNew name: ")
|
|
(if archive-read-only (error "Archive is read-only"))
|
|
(if (string= newname "")
|
|
(error "Archive members may not be given empty names"))
|
|
(let ((func (archive-name "rename-entry"))
|
|
(descr (archive-get-descr)))
|
|
(if (fboundp func)
|
|
(progn
|
|
(funcall func (buffer-file-name) newname descr)
|
|
(archive-resummarize))
|
|
(error "Renaming is not supported for this archive type"))))
|
|
|
|
;; Revert the buffer and recompute the dired-like listing.
|
|
(defun archive-mode-revert (&optional no-autosave no-confirm)
|
|
(let ((no (archive-get-lineno)))
|
|
(setq archive-files nil)
|
|
(let ((revert-buffer-function nil))
|
|
(revert-buffer t t))
|
|
(archive-mode)
|
|
(goto-char archive-file-list-start)
|
|
(archive-next-line no)))
|
|
|
|
(defun archive-undo ()
|
|
"Undo in an archive buffer.
|
|
This doesn't recover lost files, it just undoes changes in the buffer itself."
|
|
(interactive)
|
|
(let (buffer-read-only)
|
|
(undo)))
|
|
;; -------------------------------------------------------------------------
|
|
;; Section: Arc Archives
|
|
|
|
(defun archive-arc-summarize ()
|
|
(let ((p 1)
|
|
(totalsize 0)
|
|
(maxlen 8)
|
|
files
|
|
visual)
|
|
(while (and (< (+ p 29) (point-max))
|
|
(= (char-after p) ?\C-z)
|
|
(> (char-after (1+ p)) 0))
|
|
(let* ((namefld (buffer-substring (+ p 2) (+ p 2 13)))
|
|
(fnlen (or (string-match "\0" namefld) 13))
|
|
(efnname (substring namefld 0 fnlen))
|
|
(csize (archive-l-e (+ p 15) 4))
|
|
(moddate (archive-l-e (+ p 19) 2))
|
|
(modtime (archive-l-e (+ p 21) 2))
|
|
(ucsize (archive-l-e (+ p 25) 4))
|
|
(fiddle (string= efnname (upcase efnname)))
|
|
(ifnname (if fiddle (downcase efnname) efnname))
|
|
(text (format " %8d %-11s %-8s %s"
|
|
ucsize
|
|
(archive-dosdate moddate)
|
|
(archive-dostime modtime)
|
|
ifnname)))
|
|
(setq maxlen (max maxlen fnlen)
|
|
totalsize (+ totalsize ucsize)
|
|
visual (cons (vector text
|
|
(- (length text) (length ifnname))
|
|
(length text))
|
|
visual)
|
|
files (cons (vector efnname ifnname fiddle nil (1- p))
|
|
files)
|
|
p (+ p 29 csize))))
|
|
(goto-char (point-min))
|
|
(let ((dash (concat "- -------- ----------- -------- "
|
|
(make-string maxlen ?-)
|
|
"\n")))
|
|
(insert "M Length Date Time File\n"
|
|
dash)
|
|
(archive-summarize-files (nreverse visual))
|
|
(insert dash
|
|
(format " %8d %d file%s"
|
|
totalsize
|
|
(length files)
|
|
(if (= 1 (length files)) "" "s"))
|
|
"\n"))
|
|
(apply 'vector (nreverse files))))
|
|
|
|
(defun archive-arc-rename-entry (archive newname descr)
|
|
(if (string-match "[:\\\\/]" newname)
|
|
(error "File names in arc files may not contain a path"))
|
|
(if (> (length newname) 12)
|
|
(error "File names in arc files are limited to 12 characters"))
|
|
(let ((name (concat newname (substring "\0\0\0\0\0\0\0\0\0\0\0\0\0"
|
|
(length newname))))
|
|
buffer-read-only)
|
|
(save-restriction
|
|
(save-excursion
|
|
(widen)
|
|
(goto-char (+ archive-proper-file-start (aref descr 4) 2))
|
|
(delete-char 13)
|
|
(insert name)))))
|
|
;; -------------------------------------------------------------------------
|
|
;; Section: Lzh Archives
|
|
|
|
(defun archive-lzh-summarize ()
|
|
(let ((p 1)
|
|
(totalsize 0)
|
|
(maxlen 8)
|
|
files
|
|
visual)
|
|
(while (progn (goto-char p) (looking-at "..-l[hz][0-9]-"))
|
|
(let* ((hsize (char-after p))
|
|
(csize (archive-l-e (+ p 7) 4))
|
|
(ucsize (archive-l-e (+ p 11) 4))
|
|
(modtime (archive-l-e (+ p 15) 2))
|
|
(moddate (archive-l-e (+ p 17) 2))
|
|
(fnlen (char-after (+ p 21)))
|
|
(efnname (buffer-substring (+ p 22) (+ p 22 fnlen)))
|
|
(fiddle (string= efnname (upcase efnname)))
|
|
(ifnname (if fiddle (downcase efnname) efnname))
|
|
(p2 (+ p 22 fnlen))
|
|
(creator (if (>= (- hsize fnlen) 24) (char-after (+ p2 2)) 0))
|
|
(mode (if (= creator ?U) (archive-l-e (+ p2 8) 2) ?\666))
|
|
(modestr (if mode (archive-int-to-mode mode) "??????????"))
|
|
(uid (if (= creator ?U) (archive-l-e (+ p2 10) 2)))
|
|
(gid (if (= creator ?U) (archive-l-e (+ p2 12) 2)))
|
|
(text (if archive-alternate-display
|
|
(format " %8d %5S %5S %s"
|
|
ucsize
|
|
(or uid "?")
|
|
(or gid "?")
|
|
ifnname)
|
|
(format " %10s %8d %-11s %-8s %s"
|
|
modestr
|
|
ucsize
|
|
(archive-dosdate moddate)
|
|
(archive-dostime modtime)
|
|
ifnname))))
|
|
(setq maxlen (max maxlen fnlen)
|
|
totalsize (+ totalsize ucsize)
|
|
visual (cons (vector text
|
|
(- (length text) (length ifnname))
|
|
(length text))
|
|
visual)
|
|
files (cons (vector efnname ifnname fiddle mode (1- p))
|
|
files)
|
|
p (+ p hsize 2 csize))))
|
|
(goto-char (point-min))
|
|
(let ((dash (concat (if archive-alternate-display
|
|
"- -------- ----- ----- "
|
|
"- ---------- -------- ----------- -------- ")
|
|
(make-string maxlen ?-)
|
|
"\n"))
|
|
(header (if archive-alternate-display
|
|
"M Length Uid Gid File\n"
|
|
"M Filemode Length Date Time File\n"))
|
|
(sumline (if archive-alternate-display
|
|
" %8d %d file%s"
|
|
" %8d %d file%s")))
|
|
(insert header dash)
|
|
(archive-summarize-files (nreverse visual))
|
|
(insert dash
|
|
(format sumline
|
|
totalsize
|
|
(length files)
|
|
(if (= 1 (length files)) "" "s"))
|
|
"\n"))
|
|
(apply 'vector (nreverse files))))
|
|
|
|
(defconst archive-lzh-alternate-display t)
|
|
|
|
(defun archive-lzh-extract (archive name)
|
|
(archive-extract-by-stdout archive name archive-lzh-extract))
|
|
|
|
(defun archive-lzh-resum (p count)
|
|
(let ((sum 0))
|
|
(while (> count 0)
|
|
(setq count (1- count)
|
|
sum (+ sum (char-after p))
|
|
p (1+ p)))
|
|
(logand sum 255)))
|
|
|
|
(defun archive-lzh-rename-entry (archive newname descr)
|
|
(save-restriction
|
|
(save-excursion
|
|
(widen)
|
|
(let* ((p (+ archive-proper-file-start (aref descr 4)))
|
|
(oldhsize (char-after p))
|
|
(oldfnlen (char-after (+ p 21)))
|
|
(newfnlen (length newname))
|
|
(newhsize (+ oldhsize newfnlen (- oldfnlen)))
|
|
buffer-read-only)
|
|
(if (> newhsize 255)
|
|
(error "The file name is too long"))
|
|
(goto-char (+ p 21))
|
|
(delete-char (1+ oldfnlen))
|
|
(insert newfnlen newname)
|
|
(goto-char p)
|
|
(delete-char 2)
|
|
(insert newhsize (archive-lzh-resum p newhsize))))))
|
|
|
|
(defun archive-lzh-ogm (newval files errtxt ofs)
|
|
(save-restriction
|
|
(save-excursion
|
|
(widen)
|
|
(while files
|
|
(let* ((fil (car files))
|
|
(p (+ archive-proper-file-start (aref fil 4)))
|
|
(hsize (char-after p))
|
|
(fnlen (char-after (+ p 21)))
|
|
(p2 (+ p 22 fnlen))
|
|
(creator (if (>= (- hsize fnlen) 24) (char-after (+ p2 2)) 0))
|
|
buffer-read-only)
|
|
(if (= creator ?U)
|
|
(progn
|
|
(or (numberp newval)
|
|
(setq newval (funcall newval (archive-l-e (+ p2 ofs) 2))))
|
|
(goto-char (+ p2 ofs))
|
|
(delete-char 2)
|
|
(insert (logand newval 255) (lsh newval -8))
|
|
(goto-char (1+ p))
|
|
(delete-char 1)
|
|
(insert (archive-lzh-resum (1+ p) hsize)))
|
|
(message "Member %s does not have %s field"
|
|
(aref fil 1) errtxt)))
|
|
(setq files (cdr files))))))
|
|
|
|
(defun archive-lzh-chown-entry (newuid files)
|
|
(archive-lzh-ogm newuid files "an uid" 10))
|
|
|
|
(defun archive-lzh-chgrp-entry (newgid files)
|
|
(archive-lzh-ogm newgid files "a gid" 12))
|
|
|
|
(defun archive-lzh-chmod-entry (newmode files)
|
|
(archive-lzh-ogm
|
|
;; This should work even though newmode will be dynamically accessed.
|
|
(function (lambda (old) (archive-calc-mode old newmode t)))
|
|
files "a unix-style mode" 8))
|
|
;; -------------------------------------------------------------------------
|
|
;; Section: Zip Archives
|
|
|
|
(defun archive-zip-summarize ()
|
|
(goto-char (- (point-max) (- 22 18)))
|
|
(search-backward-regexp "[P]K\005\006")
|
|
(let ((p (1+ (archive-l-e (+ (point) 16) 4)))
|
|
(maxlen 8)
|
|
(totalsize 0)
|
|
files
|
|
visual)
|
|
(while (string= "PK\001\002" (buffer-substring p (+ p 4)))
|
|
(let* ((creator (char-after (+ p 5)))
|
|
(method (archive-l-e (+ p 10) 2))
|
|
(modtime (archive-l-e (+ p 12) 2))
|
|
(moddate (archive-l-e (+ p 14) 2))
|
|
(ucsize (archive-l-e (+ p 24) 4))
|
|
(fnlen (archive-l-e (+ p 28) 2))
|
|
(exlen (archive-l-e (+ p 30) 2))
|
|
(fclen (archive-l-e (+ p 32) 2))
|
|
(lheader (archive-l-e (+ p 42) 4))
|
|
(efnname (buffer-substring (+ p 46) (+ p 46 fnlen)))
|
|
(isdir (and (= ucsize 0)
|
|
(string= (file-name-nondirectory efnname) "")))
|
|
(mode (cond ((memq creator '(2 3)) ; Unix + VMS
|
|
(archive-l-e (+ p 40) 2))
|
|
((memq creator '(0 5 6 7 10 11)) ; Dos etc.
|
|
(logior ?\444
|
|
(if isdir (logior 16384 ?\111) 0)
|
|
(if (zerop
|
|
(logand 1 (char-after (+ p 38))))
|
|
?\222 0)))
|
|
(t nil)))
|
|
(modestr (if mode (archive-int-to-mode mode) "??????????"))
|
|
(fiddle (and archive-zip-case-fiddle
|
|
(not (not (memq creator '(0 2 4 5 9))))))
|
|
(ifnname (if fiddle (downcase efnname) efnname))
|
|
(text (format " %10s %8d %-11s %-8s %s"
|
|
modestr
|
|
ucsize
|
|
(archive-dosdate moddate)
|
|
(archive-dostime modtime)
|
|
ifnname)))
|
|
(setq maxlen (max maxlen fnlen)
|
|
totalsize (+ totalsize ucsize)
|
|
visual (cons (vector text
|
|
(- (length text) (length ifnname))
|
|
(length text))
|
|
visual)
|
|
files (cons (if isdir
|
|
nil
|
|
(vector efnname ifnname fiddle mode
|
|
(list (1- p) lheader)))
|
|
files)
|
|
p (+ p 46 fnlen exlen fclen))))
|
|
(goto-char (point-min))
|
|
(let ((dash (concat "- ---------- -------- ----------- -------- "
|
|
(make-string maxlen ?-)
|
|
"\n")))
|
|
(insert "M Filemode Length Date Time File\n"
|
|
dash)
|
|
(archive-summarize-files (nreverse visual))
|
|
(insert dash
|
|
(format " %8d %d file%s"
|
|
totalsize
|
|
(length files)
|
|
(if (= 1 (length files)) "" "s"))
|
|
"\n"))
|
|
(apply 'vector (nreverse files))))
|
|
|
|
(defun archive-zip-extract (archive name)
|
|
(if archive-zip-use-pkzip
|
|
(archive-*-extract archive name archive-zip-extract)
|
|
(archive-extract-by-stdout archive name archive-zip-extract)))
|
|
|
|
(defun archive-zip-write-file-member (archive descr)
|
|
(archive-*-write-file-member
|
|
archive
|
|
descr
|
|
(if (aref descr 2) archive-zip-update-case archive-zip-update)))
|
|
|
|
(defun archive-zip-chmod-entry (newmode files)
|
|
(save-restriction
|
|
(save-excursion
|
|
(widen)
|
|
(while files
|
|
(let* ((fil (car files))
|
|
(p (+ archive-proper-file-start (car (aref fil 4))))
|
|
(creator (char-after (+ p 5)))
|
|
(oldmode (aref fil 3))
|
|
(newval (archive-calc-mode oldmode newmode t))
|
|
buffer-read-only)
|
|
(cond ((memq creator '(2 3)) ; Unix + VMS
|
|
(goto-char (+ p 40))
|
|
(delete-char 2)
|
|
(insert (logand newval 255) (lsh newval -8)))
|
|
((memq creator '(0 5 6 7 10 11)) ; Dos etc.
|
|
(goto-char (+ p 38))
|
|
(insert (logior (logand (char-after (point)) 254)
|
|
(logand (logxor 1 (lsh newval -7)) 1)))
|
|
(delete-char 1))
|
|
(t (message "Don't know how to change mode for this member"))))
|
|
(setq files (cdr files))))))
|
|
;; -------------------------------------------------------------------------
|
|
;; Section: Zoo Archives
|
|
|
|
(defun archive-zoo-summarize ()
|
|
(let ((p (1+ (archive-l-e 25 4)))
|
|
(maxlen 8)
|
|
(totalsize 0)
|
|
files
|
|
visual)
|
|
(while (and (string= "\334\247\304\375" (buffer-substring p (+ p 4)))
|
|
(> (archive-l-e (+ p 6) 4) 0))
|
|
(let* ((next (1+ (archive-l-e (+ p 6) 4)))
|
|
(moddate (archive-l-e (+ p 14) 2))
|
|
(modtime (archive-l-e (+ p 16) 2))
|
|
(ucsize (archive-l-e (+ p 20) 4))
|
|
(namefld (buffer-substring (+ p 38) (+ p 38 13)))
|
|
(fnlen (or (string-match "\0" namefld) 13))
|
|
(efnname (substring namefld 0 fnlen))
|
|
(fiddle (string= efnname (upcase efnname)))
|
|
(ifnname (if fiddle (downcase efnname) efnname))
|
|
(text (format " %8d %-11s %-8s %s"
|
|
ucsize
|
|
(archive-dosdate moddate)
|
|
(archive-dostime modtime)
|
|
ifnname)))
|
|
(setq maxlen (max maxlen fnlen)
|
|
totalsize (+ totalsize ucsize)
|
|
visual (cons (vector text
|
|
(- (length text) (length ifnname))
|
|
(length text))
|
|
visual)
|
|
files (cons (vector efnname ifnname fiddle nil (1- p))
|
|
files)
|
|
p next)))
|
|
(goto-char (point-min))
|
|
(let ((dash (concat "- -------- ----------- -------- "
|
|
(make-string maxlen ?-)
|
|
"\n")))
|
|
(insert "M Length Date Time File\n"
|
|
dash)
|
|
(archive-summarize-files (nreverse visual))
|
|
(insert dash
|
|
(format " %8d %d file%s"
|
|
totalsize
|
|
(length files)
|
|
(if (= 1 (length files)) "" "s"))
|
|
"\n"))
|
|
(apply 'vector (nreverse files))))
|
|
|
|
(defun archive-zoo-extract (archive name)
|
|
(archive-extract-by-stdout archive name archive-zoo-extract))
|
|
;; -------------------------------------------------------------------------
|
|
(provide 'archive-mode)
|
|
|
|
;; arc-mode.el ends here.
|