cpio-mode -- initial code

[Douglas Lewan <d.lewan2000@gmail.com>]

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Well, with some apologies for the delay, I'm finally delivering something
for cpio-mode. A tarball is attached.

Right now the only format that's supported is newc. The others will be
coming, but the reality is that the formats are the easy part. Similarly,
only file and directory extractions work at the moment.

To use this
1. Read a newc format cpio archive.
2. M-x cpio-mode in that buffer. (This should get you a dired-like buffer.)
3. Do basic dired-like things in this buffer.

Many commands have mappings, but most don't have implementations. If you
try to use a command that's not implemented, then an error to that effect
is signaled. (dired turned out to be bigger than I expected.)

The long-term intent is for the archive to be entirely editable. You should
be able to edit entry contents, save them into the archive buffer, touch
entries, change modes, owners and groups, add and delete entries, etc.
Archive detection is also a goal, so you would get cpio-mode for free with
the appropriate find-file hook.

All comments are welcome.

-- 
,Doug
Douglas Lewan
(908) 720-7908
Member of the PKRA.

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