3 Release S-nail v20 on 2018-03-25, the 40th anniversary of Mail.
4 With a clean, conforming and efficient codebase, then.
6 - Recipients specified on the command line should be added to those
7 specified in the message when the -t option is set.
9 - At least optionally disallow silent discarding of invalid addresses,
10 i.e., cause sending to be aborted if not all recipient addresses pass the
13 - Ditto if a resource file can't be found that has been explicitly set via
14 environment variables there should be some feedback.
16 - I.e., it is fine to be silent unless an error occurs, but then please
17 report errors and offer (in interactive mode) the possibility to act at
18 a glance. (See error ring topic around here.)
20 - POSIX says that, when written to DEAD: "If the file exists, the message
21 shall be written to replace the contents of the file". This is mentioned
22 for ASYNCHRONOUS EVENTS, but it's the only description of what should be
23 done in which way to DEAD. savedeadletter() yet appends. See ZOMBIE ,)
25 - It irritates me that a message with 5 visible lines but 115 header lines
26 goes through the pager, even if i have *crt=*.
28 - We should possibly get away of using command line utilities for
29 compression. (At least optionally?) Instead we should link against
30 zlib(3), bz2lib(3) and lzma(3), if found. Or we may use dlopen(3)
31 instead, if found, to avoid linking (though those libraries don't need
32 much linker work unless actually used afaik, 'should look in detail).
33 We should also drop lzw.c, it is used for the IMAP cache.
35 - We should maybe turn -~ into the meaning "force interactive".
36 We should extend cc-test.sh, then, to test some interactive things.
38 - We need a "void" box that can be jumped to, i.e., a state in which no box
41 -- When a MBOX mailbox is removed while it is opened then changing the
42 folder is not possible. This is an inherent problem of the Berkeley
43 Mail codebase, and we need to have a fully functional intermediate
44 VOID box mechanism plus an object-based mailbox implementation to
47 -- Also, when the folder was modified concurrently we should bail, or,
48 in an interactive session, prompt the user what to do.
50 - IDNA decoding. Needs a complete design change.
54 - mutt(1) quotes all text parts of a message, not only the first one!
55 This should at least be optionally available.
57 - If pipes fail for part viewers then at least the usual PART X.Y should be
58 shown, maybe even including some error message.
59 I had 'set pipe-text/html="lynx -dump -force_html /dev/stdin"' but NetBSD
60 does not have lynx(1), and i thought i've found a S-nail(1) bug.
62 - Offer the possibility to work with certificate fingerprints instead of
63 full certificates, in equal spirit to the current maintainers S-Postman
64 and Mercurial. S-nail(1) could simply offer something in equal spirit to
65 the formers --fingerprint, so that no other tool is necessary for
66 certificate management (for at least secure transport).
68 - It would be nice if it would be possible to define a format string for
69 *quote*, like 'set quote="format=some formats"'.
70 In general the current approach is somewhat messy IMO. I.e., it would
71 make more sense to act rather like mutt(1) and as written elsewhere in
72 this document, i.e., have some toggles that act on the display and use it
73 for multiple modes (show/reply/forward etc.)
74 Otherwise introduce commands which include all the headers plus, e.g.,
75 "hreply" or "freply", and then the ditto series, i.e., "hReply" ...
77 -- This would also mean that interactive message editing would work
80 - Command line editing should gain possibility of context sensitive tab
83 -- Note that the TTY is sick. If ^C on input it simply jumps to next
84 input, instead of saying "Interrupted, one more to die hard" or
85 something (talking about ~@ charset selection prompts in particular).
87 - For those who use S-nail(1) only with a MTA it may be desirable to have
88 some "smopts" expansion mechanism in equal spirit to NetBSD mailx(1).
90 - Maybe there should be an additional ZOMBIE directive that is served in
91 equal spirit to DEAD, but that could be a valid MBOX... ?
92 What i want is a *real* resend, best if possible from command line.
93 Meaning, also the possibility to postpone a message. In general.
95 - POP3 doesn't support "newmail" for real. If implemented, should it sync?
96 Look at POP3 impl. in general..
98 - Having a newsreader would be a really cool thing. (RFC 977 and 2980)
100 - There should be a way to ignore the From_ line, as opposed to the From:
101 line, i.e., distinctively.
103 - There should be a variable that controls wether leading and trailing
104 empty lines of parts and/or messages as such should be printed or not.
106 - printhead()/hprf(): support %n newline format (%t tab?).
107 Make it possible to use the *datefield* algorithm for plain From_ derived
108 dates (needs a From_ parser, i.e., strptime()-alike).
109 Once we have that, rename *datefield-markout-older* to
110 *date-markout-older* ??
111 Note that NetBSD's mail(1) has some other nice things.
112 Note also that our code is quite unflexible.
114 -- NetBSD's mail(1) has nice *indentprefix* and *indentpostscript*
115 variables (though prefix and appendix or prefix and suffix, but..).
116 Note that our code is quite unflexible.
118 - The "top" command should honour ignoretab, or there should be a very
119 special "top" ignoretab. It simply doesn't make sense to "top" 5 lines
120 when all that you get are Received: lines...
122 - In the very end it is not that hard to add (optional) MTA
123 functionality at a most simple level.
124 Use sqlite for aliases (and possibly cache), then.
126 - We should support IMAP compression over the wire.
131 - Improve name extraction rules. And field parsing. There
132 are structured and unstructured fields. There are quoted pairs and
133 comments etc. Rewrite the entire parsing mechanism to comply to RFC
134 5322, and try to merge all those many subparsers around in the codebase,
135 and accordingly. So much duplicated work ...
136 Name parsing has been improved a bit for v13, but it's still broken.
137 yankword(), *extract(), etc.: RFC 5322 says that comments in address
138 fields SHOULD NOT be used (mutt(1) maps them to full name-addr forms if
139 approbiate, even if that actually changes content!!?), and that full
140 name-addr SHOULD be used. Our functions are yet quite silly (i.e.,
141 leading comments remain, as in "(bier2) <a2@b2.de>", unless the address
142 doesn't come in angle brackets, trailing go away, as in "<a6@b6.de>
143 (bier6)", that becomes "<a6@b6.de>").
145 (co$mm1) abc@däf.de (cö,mm,2) ('c'o"m"m.3)
146 Should eventually become
147 co$mm1 cö,mm,2 'c'o"m"m.3 <abc@xn--df-via.de>
148 on the display, or, with IDNA decoding (and thus rather unlikely)
149 co$mm1 cö,mm,2 'c'o"m"m.3 <abc@däf.de>
150 It should NOT become this mutt(1)ism:
151 "co$mm1 cö,mm,2 'c'omm.3" <abc@däf.de>
154 -- Think about a name bypass hashmap cache, and whenever we have to skin or
155 nalloc() or whatever, look in there. Maybe even an additional link for
156 non GFULL(/GSKIN) and fully skinned struct name objects.
157 The amount of duplicated work in this codebase is frustrating, but the
158 real healing would make necessary a complete rewrite of the name handling!
159 Such a cache would work without touching the current code flow ... or
160 allow a smooth transition to a new one anyway.
162 ++ NOTE: 'alternates' tracking happens BEFORE we enter composing, this
163 means that an account switch during message composing will NOT cause
164 reevaluation of all that very very clumy
165 elide/delete_alternates/gexpand/is_myname etc. handling.
167 - The char classification stuff can be improved; currently each character
168 has exactly one classification bit set, even if multiple would apply
169 (e.g., HT=\t == CNTRL|SPACE|ASCII|BLANK). This would allow better
170 testing using our own classification functions in quite some places.
172 - The quoted-printable Content-Transfer-Encoding: supports soft linebreaks;
173 it happens that a lot of mailers (Apple Mail?, Microsoft Word, Yahoo!
174 Webmail) create HTML parts which solely consist of a single line,
175 created via soft linebreaks.
176 To handle such mess we need to be able to break out of the input-line ==
177 output line relationship that is still fixated in the codebase.
178 I.e., it is not even sufficient to convert "rest" into an array, but best
179 would be if we would be able to sequentially work what we have, and
180 detect when it is safe to "dump that out".
181 This MUST be part of the send/mime layer rewrite in 15.0.
183 -- In v15.0, when we can address attachments of a message individually,
184 it would be nice to provide even more access, just like nmh(1) does
185 (Johan Commelin: Are s-nail and mh related?).
187 - I never used anything but the *datefield* option, and it would really be
188 nice if the date strings would be parsed off into some 16 byte or what
189 storage when about to producing the summary, so that it would be directly
190 available and there would be no need to reread the mail. Moreover, or
191 even more than that - the m_date field exists and should possibly simply
192 be init, at least in these cases. (P.S.: this doesn't contradict the
193 statement somewhere else in this file that the structure should be
194 slacked; simply use multiple thereof or so)
196 - All error messages should not go to stderr but instead we should add our
197 own n_warn() family and use that. In the background we should have
198 a ring of error messages (oldest fall off), and a command that is capable
199 to display the ring. The command loop should recognize whenever an error
200 happened during the last command, and print something like "XY errors
201 occurred", followed by a (truncated as necessary) error report.
202 It simply doesn't make any sense to print errors on stderr if normal
203 output goes to stdout and scrolls it off the screen.
204 Note that yet some errors messages still go to stdout.
206 - It would be very nice if it would be possible to have
207 account-specific macros that will be lost when a user switches off
210 -- It would also be very nice if we could define macros while defining
211 account, i.e., recursive definition of macros...
213 - At some later time extend the logic behind -# -- it should not have
214 a current folder, but start in VOID mode (...), and unless one is
215 explicitly chosen.. We need a reliable batch mode.
217 - (Support for mailcap files? As of RFC 1524? Unlikely. Though the
218 % expansions would be very helpful, especially once we can address
219 individuals parts as of v15.0!)
221 - After I/O layer rework we should optionally be able to read RSS
222 (Atom?) feeds -- Expat should be available almost everywhere and
223 should be able to parse that?
224 Atom is harder because it may support html+.
225 I mean, yeah, it's stupid, but we could fill in header fields with
226 dummies and still use S-nail to look into the separated feeds as if
227 they were mail messages; anyway i would like to save me from using too
228 many tools -- three seems reasonable.
230 - Add TODO notes for those RFCs:
231 RFC 5322 - The basic format of email messages.
232 MIME (Multimeda) email extensions
233 RFC 2405 - The format of MIME message bodies.
234 RFC 2406 - Common multimedia types.
235 RFC 2017 - URL External-Body Access-Type
236 RFC 3676 - Updates to the text/plain MIME type and extensions for flowed
237 text (format=flowed). (Martin Neitzel)
238 RFC 2407 - Encoding of non-ASCII text in message headers.
239 RFC 2183 - The Content-Disposition Header
240 RFC 2231 - Encoding of character set and language information in MIME
242 SMTP (Simple Mail Transfer Protocol)
243 RFC 5321 - Simple Mail Transfer Protocol.
244 RFC 6409 - Message Submission for Mail
245 RFC 4954 - SMTP Authentication
246 RFC 3207 - SMTP over TLS
247 RFC 6152 - SMTP Service Extension for 8-bit MIME Transport
248 Post Office Protocol (POP)
249 RFC 1939 - Post Office Protocol v3
250 RFC 2449 - POP3 Extensions (including SASL)
251 RFC 2595 - TLS for POP3 (among others)
253 RFC 4422, 4505 - Simple Authentication and Security layer (SASL)
255 RFC 5246 - Transport Layer Security (TLS)
256 RFC 977 -> 3977 - Network News Transfer Protocol
257 RFC 1036 - Standard for USENET Messages
258 RFC 2980 - Common NNTP Extensions
259 RFC 2387 - multipart/related
260 RFC 2384,1738 - I.e., Much better URL support
261 RFC 5751 - Secure/Multipurpose Internet Mail Extensions (S/MIME)
262 RFC 6125 - Representation and Verification of Domain-Based Application
263 Service Identity within Internet Public Key Infrastructure Using
264 X.509 (PKIX) Certificates in the Context of Transport Layer Security
267 - This is how the codebase has to be reworked in respect to signals and
270 1. We introduce some environment/carrier structs: struct eval_ctx,
271 struct cmd_ctx, (struct send_ctx). All of these form lists.
272 eval_ctx gets a new instance every time evaluate() is entered; for
273 the interactive mode, commands() instantiates an outermost eval_ctx
274 that "cannot be left".
275 cmd_ctx knows about the eval_ctx in which it is was created; it is
276 created for each command that has an entry in cmd_tab and is passed
277 as the new argument of these kind of functions.
278 (send_ctx is the carrier for the MIME and send layer rewrite.)
279 2. We'll get a signal manager. This is a global layer which is the
280 sole object-in-charge for signals. We'll install a complete set of
281 handlers once -- those will only set has-occurred bits.
282 All interested parties have to peek at the signal manager when they
283 are in the position to deal with signals, via a series of
284 "ha(s|ve)_occurred", "needs_action", "would_raise" or whatever, as
286 3. We need a sort of non-local return, everything else would require
287 a totally different way of programming. Also, non-local returns
288 are not *that* bad, generally speaking. We'll be easy and add the
289 possibility to define a jump target location in eval_ctx and
290 cmd_ctx, by peeking at the signal manager (for object design
291 reasons, though done by a macro, say), just like saying "i need to
292 have the chance to perform some actions shall a jump be necessary".
293 4. So, somewhere deep down the still recursive codebase, shall the
294 necessity to honour a jump request occur, we peek the signal
295 manager to "unroll" the current cmd_ctx/eval_ctx chain(s), which
296 will result in none-to-multiple jumps to locations which require
297 cleanup actions, ultimately ending in the non-leavable commands()
298 eval_ctx or whatever.
299 6. Hot: we save us from thousands of syscalls, and get rid of the
300 fucking sig* shit. It rhymes, it rhymes :)
301 Should we even be able to go the non-blocking select(2) way in the
302 end -- that would be fantastic!
303 10. The line buffer used in evaluate() that is passed through to
304 commands (thus: in cmd_ctx, then) needs to become `const'.
305 (I tried to do so in the past, but some commands write into it,
306 thus i stopped and iirc even added some changes on my own which
307 take favour of reusing that buffer.)
308 + Macro execution then no longer needs to clone the macro content
309 lines before executing then.
310 11. Macro execution is potentially recursive. Meaning that
311 `undefine', etc. can occur while macros are executing.
312 The simplemost approach would be to have some recursion counter for
313 each macro and a delete_later flag that gets honoured when the
314 recursion counter gets zero. It would be already possible to
315 immediately remove the macro from the hashtable, so that deeper
316 levels wouldn't find it anymore. To avoid leaks (which *are*) we
317 need to have a jump location for our upcoming signal handler
318 anyway. (Also to get rid of the temporary_localopts_free() hack.
319 + The same is true for `account's. Here things are complicated by
320 the global `account_name', i.e., the account could be the current
322 12. It is annoying that you cannot `source' your MAILRC multiple times.
323 Defining a macro/account/xy should overwrite the current thing,
324 just as it does anyway for normal variables!
325 This is no different than 11. plus additional re-addition.
326 (Same exception: what if the currently active account is
327 overwritten? Same answer, plus a message "new settings take effect
328 when account is switched to the next time".)
329 20. The attachment charset selection loop can then be rewritten to
330 check wether an ^C occurred and treat that as end-of-loop
331 condition. In v14.6.3 this was introduced, but it should act
332 differently depending on wether the interrupt occurred during
333 character set selection or attachment filename input.
334 Also in respect wether the interrupt is "propagated" or not.
335 It's ugly, and documented accordingly.
336 30. Mail protocols and mail messages are accessed through a "VFS".
337 31. Flag updates of individual messages must find their way through to
339 32. Use deque (on partial views).
340 33. It must be possible to open individual boxes read-only, new command
341 `cfile' (and `cfolder') as a last resort.
342 34. We need a new abstraction: `vie[ws]'. I.e, viewset, viewclear,
343 view(show|look)? We will have (possibly readonly) boxes, a summary
344 cache file, which is created when a mailbox is read in, and all
345 that crap that we currently have (setptr(), setmsize(), etc.!) must
346 vanish. Instead there is another, in-memory abstraction, the view.
347 Some views are builtin and are somehow selectable (the "all" view,
348 for example, and the "new" view).
349 It is possible to make a view persistent by giving it a name, e.g.,
350 'viewset NAME MSG-SPEC' -- 'viewset allnew :n' (and 'viewset XY `'
351 or something must be capable to tag the last a.k.a current).
352 Switching to a named view would thus look over the entire current
353 view (!) for all messages that comply to the message-spec of the
354 view, then create a sorted/threaded display of that subset and
355 create a new anonymous "result" view. It must be possible to
356 specify that a view is to be applied to the entire mailbox instead
357 of the current view, via a simple easy understandable syntax.
358 50. Support SASL, unite all GSS-API etc. under an abstraction!
359 Maybe even drop direct GSS-API and support only through SASL.
360 That is, we can very well provide our own little SASL-client
361 abstraction with what we have already by simply defining some
362 "readline" abstraction plus struct ccred for use by the
363 authentication layer: the protocols must set it up by passing in
364 a line of authentication mechanisms and a callback mechanism.
365 Possibly the user should be able to permit or forbid automatic
366 selection of GSS-API (to avoid useless round-trips) etc. etc.
367 99. Now i'm dreaming some more: with the new object-based approach
368 multiple mailboxes could be in an open state. And it should be
369 possible to do so for the user (`file' and `folder' are required to
370 quit the current mailbox [first -- this not yet]), which is why we
371 either need new trigger characters or new commands (then also in
372 a readonly version, again, it gets lengthy).
373 The absolute sensation would be joinable operations over multiple
374 open mailboxes, e.g., views over multiple such!
379 - Deal with faulty message selection that may occur when selecting threads
380 via & (when at least mixed with other selectors).
382 -- Also (?same problem?) the thread sort doesn't get
391 The current sort fails to recognize that F and the thread starting at
392 B are related, which results in a mess.
394 - Drop **use-starttls* in favour of something better: support 'auto',
395 'no' and 'yes' and act accordingly. For the former be smart enough on
396 the protocol side. (RFC 3207 describes man-in-the-middle attacks due
397 to 'auto' TLS, so explicit 'yes' should be favoured).
399 - NOTE: we do not really support IPv6 sofar in that we are not prepared to
400 deal with IPv6 addresses (as in '[ADDR]:PORT'). Pimp url_parse().
403 - mutt(1) dotlock ..., "mbox" command doesn'T work?
405 - ARGH! Should `folders' auto-login if *folder* is an IMAP account that is
406 not active? Why does _expand() use *mailname* to expand `@', not
407 getfold() (care: res may point into cbuf, savestr() or so!).
408 Why does demail() etc. treat *mailname* as a file (more or less), why do
409 we need *mailname* at all; we should have Folder objects, multiple of
410 which concurrently, one the active; a Folder may not become *folder*
411 unless it has write (store) capabilities). Maybe then `mbox' works fine
412 if connected to a POP3 server with a *MBOX* on an IMAP account that yet
413 never was connected and needs to read a password on the terminal before
414 the login works ... note the latter situation yet kills us since i think
415 INT is blocked during all that ;-((
417 - I had a connection collapse during a POP3 download, and neither was
418 there a chance to get access to the 22 yet downloaded mails (after
419 five minutes of waiting followed by CNTRL-C), nor did the layer
420 recognize this very well (got myriads of `POP3 connection already
421 closed.' messages, btw., the thirty-something messages which were not
422 yet downloaded caused (after CNTRL-C) this: ETC. ETC.
424 - Add a value-duplication command, i.e.,
431 - Add a boolify() function, so that things like `localopts' and yorn()
432 may be less strict on user input
434 - Ensure that `.' and EOF on a line works with all TTY modes (*ignoreeof*
435 relationship, too)! EOF conditions in general!
437 -- NCL / current expand-on-tab: fexpand() should take additional size_t* to
438 store the number of the results OR should "return char** array", so that
439 individual results can be addressed.
440 Then we could simply print "\nALL-RESULTS\n" and NOT expand the current
441 line if the result is ambiguous, i.e., we have more than one possible
443 However, we would then need something to print the results page-wise,
444 in case we have so many of them that they don't fit on the screen.
447 - IMAP: if i `d' a message then this is a local change (in the meanwhile);
448 yet, when i `u' it, that will go through the server, needlessly.
450 - I got an email in base64 that obviously used CRNL line endings, and once
451 i've replied the CR where quoted as *control* characters.
452 Get rid of those (kwcrtest.mbox; may be hard to do everywhere for some
453 time, due to how we deal with I/O and Send layer etc).
455 - edit.c doesn't do NEED_BODY (but IMAP won't work anyway).
458 .. s-nail </dev/null should work interactively when STDERR_FILENO is
459 a terminal! (Builtin editor; how do editline and readline work?
460 should this be documented? What does NetBSD Mail do? Should we NOT
461 be interactive?? POSIX says for sh(1) (APPLICATION USAGE): 'sh
462 2>FILE' is not interactive, even though it accepts terminal input.)
463 . Automatically track message attachments when switching off the
465 NOTE: 'alternates' tracking happens BEFORE we enter composing, this
466 means that an account switch during message composing will NOT cause
467 reevaluation of all that very very clumy
468 elide/delete_alternates/gexpand/is_myname etc. handling.
469 We REALLY need an object based rework of all that.
470 . It would be cool if ghosts, shortcuts, alternates could
471 (optionally?) be tracked via localopts.
472 (Additional entry on xy-local xy somewhere above)
473 . The spam* series (spam.c:_spam_action()) should abort if the command
474 execution failed, instead of iterating the entire list. Look into
476 . DESTDIR= should not be taken into account when deciding wether
477 a rebuild is necessary (not wrong to give that to Gaetan Bisson).
478 . Just like the RFC 3676 link above, it would be nice if it would be
479 somehow possible to recognize links in a document; i don't know yet
480 how this could be achieved without loosing formatting information (i
481 mean, we could enable this and inject terminal colour sequences, but
482 one should be able to say 'follow link x', starting an action
483 handler, and the 'x' must come from somwhere - simply injecting
484 '[NUMBER]' references distorts visual). Anyway, it's just a filter
485 that recognized the usual <SCHEME:/> stuff, and of course we can
486 simply have a buffer which records all such occurrences, so that
487 user can say '? xy NUMBER', but without the context it soon gets
489 . TTY layer: the tc*() family may fail with EINTR, which MUST be
490 handled; setting also generates SIGTTOU when we're not in foreground
491 pgrp, so we better deal with all that and ENSURE WE GET THROUGH when
492 resetting terminal attributes!
493 . Remove all occurrences of mbtowc() with mbrtowc(); temporarily add (some)
494 global mbstate_t objects until the send / MIME layer rewrite is done and
495 has the carrier. Use flip states and add aux funs with only update the
496 state+toggle on success -- CURRENTLY MBTOWC FAILURES ARE PRACTICALLY NOT
498 . Ypnose (linuxien AT legtux DOT org) pointed out that for the IMAP
499 cache we have some kind of UID validity check -- couldn't that be
500 used to perform some kind of automatic reconnection when we get that
501 much-too-frequent connection breaks in IMAP mode??
502 Also, and also for POP3, don't let the ALARM based (ugh! I'm
503 starting to dream wet from select(2), almost truly) timer blindly
504 tick, but restart it with a full interval when we did regular
505 conversation with a server. Don't forget the SSL timeouts (300
506 seconds) and their interaction with normal (user) keepalives.
507 Add a global *keepalive*, add *keepalive-USER@HOST*. (Add and use
508 a generic, single function to get the value for either protocol.)
509 . HAVE_HISTORY plus: for WANT_EDITLINE and WANT_READLINE the
510 mk-conf.sh yet always tests anything, i.e., we could fail due to
511 history related stuff even though the user doesn't WANT_HISTORY.
512 .. We should in fact convert our NCL history to a shared history
513 implementation, and only hook editline(3) and readline(3) so that
514 ^R and Cursor-(Up|Down) work as expected everywhere.
515 Like that we would have duplicate elimination for readline(3), too.
516 .. tty_addhist() should take a struct str. Anyway, evaluate() should
517 enter a history entry if the caller allows so, and it should trim
518 also trailing whitespace; also, the expanded command should be
519 stored, not the abbreviation, so that 'sst' and 'sstats' will no
520 longer produce two separate entries.
521 . getprompt() is not multibyte safe in that it should mbrtowc() before
522 calling expand_shell_escape() (i.e., only call that if ASCII,
523 otherwise pass through if fits as such).
524 . Make S/MIME an option separate of SSL/TLS
525 . pop3,mime_cte +++: \r,\n -> \015,\012, to avoid ANY problems..
526 . send.c:_print_part_info(): the filename is truncated to a maximum of
527 25 characters, which of course may mess up multibyte encodings!
528 We need a multibyte safe clamp function, even if this means that
529 an already encoded string is again parsed... We can take advantage
530 of UTF-8 here, however.
531 FURTHERMORE: don't go and separate ISO C90 Amend. 1 and wcwidth(3);
532 only support wide and multibyte stuff if we have them all.
533 Alternatively we could support ONLY UTF-8 locales via ISO C90 and
534 implement our own wcwidth(3) IFF it's only the latter is missing.
535 Though that sounds crappy.
537 v14.7 MUST use only mbrtowc() and have solved all these multibyte
538 problems (that i've introduced, mostly, and mostly for new
539 features). It has to last for well over a year!
540 . which_protocol(), *newmail* mechanism, displayname, mailname: all of
541 this <rude>SHIT</rude> must be rewritten completely and can be
542 overcome by an object-based mailbox implementation that carries all
543 the necessary state (user given path, expanded realpath(3),
544 abbreviated display path, box-protocol, etc.). Once we have this,
545 we may as well also re-introduce automatic detection of compressed
546 file-based folders based upon .gz/.bz2/.xz extension.
548 If not mentioned somehwere else: struct message should be splitted
549 into a tree of objects, with a base class that has as few fields as
550 possible; the global *message should be a deque, only accessible via
551 iterator; it should store pointers to (the actually used subtype of)
552 message structures instead; i.e., for maildir boxes the path is yet
553 allocated separately, then it could be part of the message object,
555 It should contain a ui8_t that tracks the number of contained parts,
556 so that the "fits-onto-the-screen" tests are more useful than today;
557 i think 8-bit is sufficient, with 0xFF meaning more-than-fits-here.
558 . Given how many temporary files we use, it would make sense to
559 support a reusable single temporary file, as in singletmp_take() and
560 singletmp_release(), where singletmp_release() would close and thus
561 drop the file if it excesses a specific (configurable) size, and the
562 mainloop tick would close it (after X (configurable) ticks))
563 otherwise. I guess this would improve performance for searching
565 . Searching code *could* perform a prepass, joining stuff together,
566 dropping useless cases etc.
567 But anyway: if there are multiple search expressions, it shouldn't
568 be an error if at least one of them matches at least one message.
569 . catset(3) is plain shit, and ever was. Remove IDs from all tr()s,
570 use GNU tools for extraction etc., and write a simple helper program
571 which converts these files to a serialized hashmap, just like we did
572 for the okeys (and *exactly* so); add a config check wether the ({})
573 extension is supported and finally use that for some ({static char
574 const *tr_res;}) injection optimization, then. (Think SFSYS)
575 . Searching body/text yet includes headers from attachments and
576 attachment data. This is shit. :)
577 . Btw.: (with IMAP) when opening a folder the hook gets executed after
578 the flags but before the headers are loaded, but for `newmail' it is
579 *after* the headers have been loaded.
580 . /* TODO *batch-exit-on-error*: sourcing and loading MUST BE FLAGS!
581 * TODO the current behaviour is suboptimal AT BEST! */
582 . There MUST be a way to specify that a single SPECIFIC box has to be
583 opened readonly. only the global -R flag is NOT ENOUGH!
584 . The "nifty" unregister_file()->_compress() mechanism that even
585 shovels '-Sfolder=imaps://user1@localhost -Srecord="+Sent Items"'
586 *records* calls clearerr() on the descriptor before performing it's
587 action anyway. when we really make it even to the I/O rewrite, it
588 should be possible to dis-/allow such -- it doesn't make sense to
589 add something faulty to whatever was not faulty before!
590 . The message from Andy Switala on nail-devel made me think about some
591 mechanism that invokes a macro after a message has been sent.
592 Unless macros can have args (or do we introduce $*/$@/$1..).
593 Even if the codebase will at some future time be stable and really
594 reliable, sending a message via multiple channels will never be
595 atomic, so that it would make sense for a user to be able to restore
596 *the complete message* in a save place if any of the sends failed,
597 but to remove it from our temporary place otherwise. A simple
598 version of this would be a matter of five minutes, but since
599 mightrecord() may internally (via _compress()) instantiate
600 a complete IMAP session and try to send incomplete data etc.,
601 and all that may jump, i refrained from doing so.
602 . SMTPS never became a standard and :465 was already reassigned
603 (thanks, carriers), but if a user says SMTPS and doesn't specify
604 a port also then we could simply assume :465 because except NetBSD
605 noone has SMTPS in their /etc/services?
606 Or at least automatically restart a failed getaddrinfo() in the
607 SMPTS case (if EAI_SERVICE)?
608 (Ooops - i think this should go to Gianluca Ramunno!)
609 . `dp' prints EOF at the end of a thread even if unread messages
611 . [-- #2 : 41/2761, text/plain, 0001-Israel-DST-transitio --]
612 If not fit, it should do `...'
613 It is not multibyte safe anyway, implement a generic function (or
614 two, one that takes an iconv_t) to trim a string into a buffer
615 . When doing `~w FILE' and FILE cannot be written to (was a directory)
616 then the composed mail is lost completely, it seems we jump to the
618 . `resend' doesn't smime-sign.
619 . Really do extend the test already today; test S/MIME
620 signing/encryption/decryption with two pairs of identities, instead
622 . RFC 5751 describes a message multipart layout that also includes the
623 headers in the signature; it would be nice (for completeness sake)
624 to be able to support that.
625 . The capability to save a message under the name of a recipient is in
626 the standard etc., but i've never used it.
627 What would be cool, otoh, would be if there would be the possibility
628 to register a regular expression, and if just *any* recipient of
629 a message matches, store the message in the given folder instead.
630 I.e., if i send a message to s-nail-users@ then i most likely want
631 to get a copy to the corresponding box, regardless of whoever the
632 message was sent To: Cc: or Bcc: else..
633 . In my ~xother with *nohold* if at the begin i have many large
634 messages i ended up with a truncated *mbox*? what was that?
635 . We should support ~/.netrc for account / password storage!
636 . Things like colalign(), makeprint(), colour*, as well as
637 possibly even cmd1.c:(__hprf|putindent)(), etc. belong into a cui.c,
638 display.c or the like, but not into auxlily.c etc. for sure.
639 Also writing a range of headers should be done through an
640 iterator-thing with setup/finalize init/destroy life cycle, which
641 would encapsulate the entire cmd1.c:_print_head() in the single
642 iterator setup function!
643 . Using -t should still optionally offer an option to enter editing.
644 Also we should support command line arguments on top.
645 Add a -T flag for that. Drop -q, let -T mean the same if no header
646 fields are given (i.e., header fields are not mandatory as with -t).
647 ANYWAY: -t and -q are mutual, enforce that (yet done?)
648 . Add manual section for URL and the (*v15-compat*) proto, user and
649 password chains, just as done in the s-nail-users mail.
650 . mutt list handling (`~') is very powerful
651 . Check what happens if an account switch or a network connection is
652 done while we are loading the resource files...
654 vim:set fenc=utf-8:s-ts-mode