+++ /dev/null
-[NOTE: This file is out-of-date. Updating it every time new features are added
- to nmh forevermore is a pain. Perhaps we should limit it to
- documentation of _incompatibilities_ with MH (which should be rare).]
-
-The following are the differences between nmh and MH-6.8.3. UCI has
-since released MH-6.8.4. Most of the new features it adds have
-also been added to nmh, but those differences are not listed here.
-There are a few new features in MH-6.8.4 that are missing from nmh,
-but they are primarily undocumented in MH-6.8.4 (and no one has
-ever asked me for them).
-
-GENERAL
--------
-*) nmh has been converted to autoconf (configure) and should be
- more portable and easier to install than MH. In particular, nmh
- will now compile on Linux.
-*) All of MH's Makefiles have been rewritten for nmh. You can now
- use GNU make without any problems. Also, if your make supports
- the VPATH variable (such as GNU make), you can now compile in a
- different directory from the one containing the source code.
-*) The source code for nmh has been substantially cleaned up.
- It now requires an ANSI C compiler (gcc is fine) to compile.
-*) A new option `-version' has been added to all the commands.
-*) The POP server (popd) has been removed from the distribution.
- RPOP on the client side is not currently supported.
-*) The support for MH-style bulletin boards has been removed
- (NNTP makes this obsolete anyway).
-*) Currently nmh doesn't support using shared libraries for libmh.
- This may return in the future, but is not a high priority, since
- the nmh commands are not that large, and disk space gets cheaper
- every day.
-*) Almost all of the commands in nmh have been modified to accept
- an arbitrary number of command line arguments (most MH commands
- will not accept more than 1000 arguments on the command line).
-*) nmh should be more secure than MH. Hundreds of buffer overflow
- problems have been fixed in the source code. Of course, I still
- don't make any guarantees.
-
-DOCUMENTATION
--------------
-*) Many of the man pages have been cleaned up or clarified.
-*) The mhook man page has been split into separate man pages for
- rcvtty, rcvdist, and rcvpack.
-*) Added new man page `mh-draft' which discusses the nmh draft
- folder facility.
-*) The various `procs' (rmmproc, moreproc, showmimeproc, etc...)
- are now documented in the "mh-profile" man page. Many of these
- were previously undocumented.
-
-FORMATTING
-----------
-*) Added a new formatting string escape %(decode) to decode and
- display RFC-2047 encoded header fields.
-
-SEQUENCES
----------
-*) The is no longer a limitation on the length of lines in the file
- containing your public sequences (.mh_sequences). That should be
- the end of the error message ".mh_sequences is poorly formatted".
-
-ANNO
-----
-*) The switch -inplace is now on by default.
-
-CONFLICT
---------
-*) Conflict now works on systems that define more
- than 100 groups.
-
-DIST
-----
-*) The switch -inplace is now on by default.
-
-FLIST
------
-*) A new command `flist' has been added to nmh, that will list the
- folders that contain messages in a given sequence (such as the
- unseen sequence). This was a much needed command in the MH suite
- of programs.
-
-FOLDER
-------
-*) `folder -all' now dynamically allocates space for folder names and can
- handle more than 300 folders.
-*) `folder' now uses the standard Unix trick of looking at the number of
- links to a directory entry, in order to avoid doing a stat(2) call
- on messages in folders with no subfolders. This greatly increases
- the speed of `folder -all -recurse' on large mail setups.
-*) The switches `-header' and `-total' are more orthogonal. The command
- `folder -all -noheader -nototal' now does the right thing.
-
-FORW
-----
-*) The switch -inplace is now on by default.
-*) Added switches `-dashstuffing' and `-nodashstuffing', to determine
- whether forwarded messages are RFC934 quotes (dashstuffed).
- (This corresponds to the undocumented switch "nodashmunging"
- in MH).
-
-INC
----
-*) If compiled with RPATHS, a Delivery-Date header is now added to all
- messages incorporated with `inc'.
-*) Using the new format string escape %(decode), the scan lines for `inc'
- will correctly decode RFC-2047 encoded headers.
-
-MARK
-----
-*) If neither of the switches -public/-nopublic are specified, then
- existing sequences will retain their current public/private status,
- instead of being changed to public.
-*) The command "mark -list -sequence foo" will now indicate if the
- sequence "foo" is a private sequence.
-
-MHBUILD
--------
-*) The functionality in `mhn' to create MIME messages, has been cleaned
- up substantially, and moved to separate command `mhbuild'.
-*) If given a file argument of "-", mhbuild will now accept the MIME
- composition file on the standard input, and output the new MIME
- message to the standard output. This makes it much easier to use
- this functionality in shell scripts.
-*) The switch -norfc934mode is now the default.
-
-MHL
----
-*) There is a new variable "decode" which instructs `mhl' to decode
- a component as a RFC-2047 encoded header field.
-
-MHLIST
-------
-*) The functionality of `mhn -list' has been moved to the new
- command `mhlist'.
-
-MHN
----
-*) mhn is now obsolete. It has been split into the commands mhbuild,
- mhlist, mhshow, mhstore, and viamail. mhn still exists for
- backward compatibility, but the new commands should be preferred.
-*) Changed the profile entry automhnproc to automimeproc
- (which has slightly different semantics).
-
-MHPATH
-------
-*) `mhpath all' will no longer abort if the folder has more than
- 998 messages.
-
-MHSHOW
-------
-*) The functionality of `mhn -show' has been moved to the new
- command `mhshow'.
-*) mhshow now correctly treats unknown subtypes of text as
- text/plain, as specified by RFC-2046.
-*) mhshow now correctly treats unknown subtypes of multipart as
- multipart/mixed, as specified by RFC-2046.
-*) You can now override the default method by which mhshow handles
- subtypes of multipart that are known internally (mixed, alternate,
- etc...). Previously the behavior on these types could not be
- changed.
-
-MHSTORE
--------
-*) The functionality of `mhn -store' has been moved to the new
- command `mhstore'.
-*) mhstore will now correctly identify a formatting string of "-"
- and send the content to stdout.
-
-PACKF
------
-*) When packing a folder, the default format is now `mbox' format, rather
- than `mmdf' format. The options -mbox and -mmdf have been added to
- `packf' so you can choose the desired format.
-
-PACKMBOX
---------
-*) The script packmbox has been removed from the nmh distribution, since
- its functionality has been added to the command packf.
-
-PICK
-----
-*) If neither of the switches -public/-nopublic are specified, then
- existing sequences will retain their current public/private status,
- instead of being changed to public.
-
-RCVPACK
--------
-*) The default format for `rcvpack' is now `mbox' format, rather than
- `mmdf' format. The options -mbox and -mmdf have been added to
- `rcvpack' so you can choose the desired format.
-*) Rcvpack no longer adds the field "Delivery-Date", as that is added
- by `slocal'.
-
-RCVSTORE
---------
-*) Added new switches -unseen/-nounseen to control whether new messages
- are added to the Unseen-Sequence.
-
-RCVTTY
-------
-*) The option `-width' has been added.
-
-REFILE
-------
-*) If an conflict occurs when using the `-preserve' switch,
- then refile will search for and use the next available
- message number above the one you wish to preserve, rather
- than aborting with an error.
-*) Added new options `-unlink' and `-nounlink' which specify
- that that messages "removed" from the source folder should
- just be unlinked, rather than moved to name with prefix.
-
-REPL
-----
-*) Added new options `-format' and `-noformat'. The switch `-format'
- will filter the message to which you are replying with a standard
- message filter "mhl.reply" which is included in the distribution.
- The switch `-noformat' will negate `-format' and `-filter', so that
- the message to which you are replying is not included in the draft.
-*) Added new options `-group' and `-nogroup'. These switches direct
- repl as to whether or not this is a group reply. A group reply uses
- a different forms (components) file (default is replgroupcomps).
-*) The standard forms files "replcomps" and "replgroupcomps" now have
- support for the "Mail-Reply-To:" and "Mail-Followup-To:" header fields.
-*) The switch -inplace is now on by default.
-
-RMM
----
-*) Added new options `-unlink' and `-nounlink' which specify
- that that "removed" messages should just be unlinked, rather
- than moved to name with prefix.
-
-SCAN
-----
-*) Using the new format string escape %(decode), the scan lines created
- by `scan' will correctly decode RFC-2047 encoded headers.
-
-SHOW/NEXT/PREV
---------------
-*) Added new options `-checkmime' and `-nocheckmime' which allow you
- to enable and disable the test for MIME messages.
-*) The "mhnproc" profile entry has been changed to "showmimeproc".
-*) Added `-showmimeproc' switch to specify the showmimeproc at the
- command line.
-*) The default "showproc" has been changed to `mhl'.
-*) The default "showmimeproc" is now `mhshow'.
-*) `show' is better at handling alternate character sets. It knows that
- US-ASCII is a subset of any ISO-8859-X character set.
-
-SLOCAL
-------
-*) Added new action `folder' or `+' to slocal, which adds new message
- to a nmh folder. Currently, this is handled by piping the new
- message to rcvstore, although this may change in the future.
-*) The action `mbox' now delivers to a file in mbox format. Previously
- it delivered to a file in mmdf format.
-*) Added new action `mmdf' to deliver to a file in mmdf format.
-*) Added new options -[no]suppressdup to slocal to check for duplicate
- messages. The code for suppression of duplicate messages (MH config
- was MSGID) is now always built into slocal.
-*) Improved the debugging of slocal ".maildelivery" files. It will now
- warn when an entry in this file is skipped because there are not
- enough fields. Also the debugging output of slocal has been cleaned up,
- so that it is much easier to read.
-*) Slocal now adds the Delivery-Date header to all delivered messages.
- Previously it only added them to messages delivered to a file.
-
-VIAMAIL
--------
-*) The functionality of this new command, was formerly part of
- `mhn' as the (undocumented) option `mhn -viamail'.
-
-WHATNOW
--------
-*) Added new action "mime" to whatnow, which causes whatnow to call
- program specified by "buildmimeproc" profile entry, to process
- MIME composition files (default is mhbuild).
-*) Added new action "delete" to whatnow, which deletes draft file
- and exits.
projects / mmh / blobdiff