source: trunk/third/nmh/DIFFERENCES @ 12455

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1
2The following are the differences between nmh and MH-6.8.3.  UCI has
3since released MH-6.8.4.  Most of the new features it adds have
4also been added to nmh, but those differences are not listed here.
5There are a few new features in MH-6.8.4 that are missing from nmh,
6but they are primarily undocumented in MH-6.8.4 (and no one has
7ever asked me for them).
8
9GENERAL
10-------
11*) nmh has been converted to autoconf (configure) and should be
12   more portable and easier to install than MH.  In particular, nmh
13   will now compile on Linux.
14*) All of MH's Makefiles have been rewritten for nmh.  You can now
15   use GNU make without any problems.  Also, if your make supports
16   the VPATH variable (such as GNU make), you can now compile in a
17   different directory from the one containing the source code.
18*) The source code for nmh has been substantially cleaned up.
19   It now requires an ANSI C compiler (gcc is fine) to compile.
20*) A new option `-version' has been added to all the commands.
21*) The POP server (popd) has been removed from the distribution.
22   But the client-side support for POP and KPOP is still present.
23   Also nmh doesn't currently support some of the alternate forms of
24   POP such as APOP or RPOP that are contained in MH (although they
25   could easily be resurrected, if necessary).
26*) The support for MH-style bulletin boards has been removed
27   (NNTP makes this obsolete anyway).
28*) Currently nmh doesn't support using shared libraries for libmh.
29   This may return in the future, but is not a high priority, since
30   the nmh commands are not that large, and disk space gets cheaper
31   every day.
32*) Almost all of the commands in nmh have been modified to accept
33   an arbitrary number of command line arguments (most MH commands
34   will not accept more than 1000 arguments on the command line).
35*) nmh should be more secure than MH.  Hundreds of buffer overflow
36   problems have been fixed in the source code.  Of course, I still
37   don't make any guarantees.
38
39DOCUMENTATION
40-------------
41*) Many of the man pages have been cleaned up or clarified.
42*) The mhook man page has been split into separate man pages for
43   rcvtty, rcvdist, and rcvpack.
44*) Added new man page `mh-draft' which discusses the nmh draft
45   folder facility.
46*) The various `procs' (rmmproc, moreproc, showmimeproc, etc...)
47   are now documented in the "mh-profile" man page.  Many of these
48   were previously undocumented.
49
50FORMATTING
51----------
52*) Added a new formatting string escape %(decode) to decode and
53   display RFC-2047 encoded header fields.
54
55SEQUENCES
56---------
57*) The is no longer a limitation on the length of lines in the file
58   containing your public sequences (.mh_sequences).  That should be
59   the end of the error message ".mh_sequences is poorly formatted".
60
61ANNO
62----
63*) The switch -inplace is now on by default.
64
65CONFLICT
66--------
67*) Conflict now works on systems that define more
68   than 100 groups.
69
70DIST
71----
72*) The switch -inplace is now on by default.
73
74FLIST
75-----
76*) A new command `flist' has been added to nmh, that will list the
77   folders that contain messages in a given sequence (such as the
78   unseen sequence).  This was a much needed command in the MH suite
79   of programs.
80
81FOLDER
82------
83*) `folder -all' now dynamically allocates space for folder names and can
84   handle more than 300 folders.
85*) `folder' now uses the standard Unix trick of looking at the number of
86   links to a directory entry, in order to avoid doing a stat(2) call
87   on messages in folders with no subfolders.  This greatly increases
88   the speed of `folder -all -recurse' on large mail setups.
89*) The switches `-header' and `-total' are more orthogonal.  The command
90   `folder -all -noheader -nototal' now does the right thing.
91
92FORW
93----
94*) The switch -inplace is now on by default.
95*) Added switches `-dashstuffing' and `-nodashstuffing', to determine
96   whether forwarded messages are RFC934 quotes (dashstuffed).
97   (This corresponds to the undocumented switch "nodashmunging"
98   in MH).
99
100INC
101---
102*) If compiled with RPATHS, a Delivery-Date header is now added to all
103   messages incorporated with `inc'.
104*) Using the new format string escape %(decode), the scan lines for `inc'
105   will correctly decode RFC-2047 encoded headers.
106
107MARK
108----
109*) If neither of the switches -public/-nopublic are specified, then
110   existing sequences will retain their current public/private status,
111   instead of being changed to public.
112*) The command "mark -list -sequence foo" will now indicate if the
113   sequence "foo" is a private sequence.
114
115MHBUILD
116-------
117*) The functionality in `mhn' to create MIME messages, has been cleaned
118   up substantially, and moved to separate command `mhbuild'.
119*) If given a file argument of "-", mhbuild will now accept the MIME
120   composition file on the standard input, and output the new MIME
121   message to the standard output.  This makes it much easier to use
122   this functionality in shell scripts.
123*) The switch -norfc934mode is now the default.
124
125MHL
126---
127*) There is a new variable "decode" which instructs `mhl' to decode
128   a component as a RFC-2047 encoded header field.
129
130MHLIST
131------
132*) The functionality of `mhn -list' has been moved to the new
133   command `mhlist'.
134
135MHN
136---
137*) mhn is now obsolete.  It has been split into the commands mhbuild,
138   mhlist, mhshow, mhstore, and viamail.  mhn still exists for
139   backward compatibility, but the new commands should be preferred.
140*) Changed the profile entry automhnproc to automimeproc
141   (which has slightly different semantics).
142
143MHPATH
144------
145*) `mhpath all' will no longer abort if the folder has more than
146   998 messages.
147
148MHSHOW
149------
150*) The functionality of `mhn -show' has been moved to the new
151   command `mhshow'.
152*) mhshow now correctly treats unknown subtypes of text as
153   text/plain, as specified by RFC-2046.
154*) mhshow now correctly treats unknown subtypes of multipart as
155   multipart/mixed, as specified by RFC-2046.
156*) You can now override the default method by which mhshow handles
157   subtypes of multipart that are known internally (mixed, alternate,
158   etc...).  Previously the behavior on these types could not be
159   changed.
160
161MHSTORE
162-------
163*) The functionality of `mhn -store' has been moved to the new
164   command `mhstore'.
165*) mhstore will now correctly identify a formatting string of "-"
166   and send the content to stdout.
167
168PACKF
169-----
170*) When packing a folder, the default format is now `mbox' format, rather
171   than `mmdf' format.  The options -mbox and -mmdf have been added to
172   `packf' so you can choose the desired format.
173
174PACKMBOX
175--------
176*) The script packmbox has been removed from the nmh distribution, since
177   its functionality has been added to the command packf.
178
179PICK
180----
181*) If neither of the switches -public/-nopublic are specified, then
182   existing sequences will retain their current public/private status,
183   instead of being changed to public.
184
185RCVPACK
186-------
187*) The default format for `rcvpack' is now `mbox' format, rather than
188   `mmdf' format.  The options -mbox and -mmdf have been added to
189   `rcvpack' so you can choose the desired format.
190*) Rcvpack no longer adds the field "Delivery-Date", as that is added
191   by `slocal'.
192
193RCVSTORE
194--------
195*) Added new switches -unseen/-nounseen to control whether new messages
196   are added to the Unseen-Sequence.
197
198RCVTTY
199------
200*) The option `-width' has been added.
201
202REFILE
203------
204*) If an conflict occurs when using the `-preserve' switch,
205   then refile will search for and use the next available
206   message number above the one you wish to preserve, rather
207   than aborting with an error.
208*) Added new options `-unlink' and `-nounlink' which specify
209   that that messages "removed" from the source folder should
210   just be unlinked, rather than moved to name with prefix.
211
212REPL
213----
214*) Added new options `-format' and `-noformat'.  The switch `-format'
215   will filter the message to which you are replying with a standard
216   message filter "mhl.reply" which is included in the distribution.
217   The switch `-noformat' will negate `-format' and `-filter', so that
218   the message to which you are replying is not included in the draft.
219*) Added new options `-group' and `-nogroup'.  These switches direct
220   repl as to whether or not this is a group reply.  A group reply uses
221   a different forms (components) file (default is replgroupcomps).
222*) The standard forms files "replcomps" and "replgroupcomps" now have
223   support for the "Mail-Reply-To:" and "Mail-Followup-To:" header fields.
224*) The switch -inplace is now on by default.
225
226RMM
227---
228*) Added new options `-unlink' and `-nounlink' which specify
229   that that "removed" messages should just be unlinked, rather
230   than moved to name with prefix.
231
232SCAN
233----
234*) Using the new format string escape %(decode), the scan lines created
235   by `scan' will correctly decode RFC-2047 encoded headers.
236
237SHOW/NEXT/PREV
238--------------
239*) Added new options `-checkmime' and `-nocheckmime' which allow you
240   to enable and disable the test for MIME messages.
241*) The "mhnproc" profile entry has been changed to "showmimeproc".
242*) Added `-showmimeproc' switch to specify the showmimeproc at the
243   command line.
244*) The default "showproc" has been changed to `mhl'.
245*) The default "showmimeproc" is now `mhshow'.
246*) `show' is better at handling alternate character sets.  It knows that
247   US-ASCII is a subset of any ISO-8859-X character set.
248
249SLOCAL
250------
251*) Added new action `folder' or `+' to slocal, which adds new message
252   to a nmh folder.  Currently, this is handled by piping the new
253   message to rcvstore, although this may change in the future.
254*) The action `mbox' now delivers to a file in mbox format.  Previously
255   it delivered to a file in mmdf format.
256*) Added new action `mmdf' to deliver to a file in mmdf format.
257*) Added new options -[no]suppressdup to slocal to check for duplicate
258   messages.  The code for suppression of duplicate messages (MH config
259   was MSGID) is now always built into slocal.
260*) Improved the debugging of slocal ".maildelivery" files.  It will now
261   warn when an entry in this file is skipped because there are not
262   enough fields.  Also the debugging output of slocal has been cleaned up,
263   so that it is much easier to read.
264*) Slocal now adds the Delivery-Date header to all delivered messages.
265   Previously it only added them to messages delivered to a file.
266
267VIAMAIL
268-------
269*) The functionality of this new command, was formerly part of
270   `mhn' as the (undocumented) option `mhn -viamail'.
271
272WHATNOW
273-------
274*) Added new action "mime" to whatnow, which causes whatnow to call
275   program specified by "buildmimeproc" profile entry, to process
276   MIME composition files (default is mhbuild).
277*) Added new action "delete" to whatnow, which deletes draft file
278   and exits.
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