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Member "tin-2.6.2/doc/TODO" (4 Nov 2022, 46354 Bytes) of package /linux/misc/tin-2.6.2.tar.xz:


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    1 Items which are showstoppers for the next major release are marked with '!'
    2 in front of them (feel free to up/downgrade and/or add or fix bugs, this
    3 file is not read only ,-).
    4 
    5 Bugs
    6 ----
    7 o  replying via email to an article with
    8    From: =?us-ascii?q?<a@example.com>,?= <b@example.org>
    9    will result in
   10    To: <a@example.com>, <b@example.org>
   11    [20141230 Urs Janssen <urs@tin.org>]
   12 
   13 o  get_respcode() doesn't handle the 401 response code. as we have to
   14    evaluate the response text as well we have to fix every
   15    nntp_command(..., NULL, 0) call.
   16    [20100429 Urs Janssen <urs@tin.org>]
   17 
   18 o  col_response is a misnomer as the counter doesn't count responses
   19    anymore (except on the very first article). The man-page is outdated too.
   20    [20080826 Urs Janssen <urs@tin.org>]
   21 
   22 o  unexpected multiline responses confuse tin, e.g.:
   23    | 240 Article posted =?ISO-8859-1?Q?=3C=3D=3Fiso=2D8859=2D1=3Fq=3F=3F=3D87r7k8na?=
   24    |   =?ISO-8859-1?Q?vt=2Efsf=40urs=2Did=2Etest=2Eka=2Enu=3E?=
   25    (the servers response should be a single line (INN 2.2))
   26    [20050207 Urs Janssen <urs@tin.org>]
   27 
   28 o  better integrate saving of MIME/non-MIME articles when not using libuu.
   29    MIME sections are saved by the 's'ave operations, uuencoded sections
   30    are saved as part of the postprocess backend
   31    [mostly done]
   32    [Jason Faultless <jason@altarstone.com>]
   33 
   34 o  batch mode has several bugs
   35    - -Z and giving a cmd-line group the cmd-line group is not displayed in
   36      the statistics nor taken into account for the 'any unread news' status.
   37    - -vc could be more verbose (like -vcZ is)
   38    - -o currently is not a 'batch_mode' option
   39    - -u could be faster if not building threads etc. pp.
   40      (build_references(), filter_articles(), make_threads())
   41    [Urs Janssen <urs@tin.org>]
   42 
   43 o  add version number to other config-files (e.g. tin.defaults)
   44    and do the same checks as for TINRC_VERSION/tinrc. for the
   45    tinrc, filter and attributes file store the charset the file is written
   46    in (e.g. ISO-8859-x vs. unicode) and for the filter file the filter method
   47    used (wildmat or regexp (or TRE))
   48    [Urs Janssen <urs@tin.org>]
   49 
   50 o  overview file caching code is over-complex
   51    - cache the original overview info instead of rebuilding it from
   52      the processed (decoded etc.) data, no matter if it's broken (e.g.
   53      contains raw 8 bit data) as we have to deal with that anyway. if there
   54      are no original overviews, cache the original data from the postings
   55      headers (after unfolding and tab removal).
   56    - Add docs to explain how to create system-wide overviews
   57 
   58 o  iso2asc conversion is missing for 'internal' strings (e.g. 'M'enu)
   59    [20020319 Urs Janssen <urs@tin.org>]
   60 
   61 o  comments in attributes get lost (we need to do something like we do for
   62    the filter file)
   63    [20080425 Urs Janssen <urs@tin.org>]
   64 
   65 o  if falling back to HEAD/NEXT ([X]OVER not working) tinrc.getart_limit
   66    isn't honored
   67    [20090112 Urs Janssen <urs@tin.org>]
   68 
   69 o  the keys GroupToggleSubjDisplay / GROUP_TOGGLE_SUBJECT_DISPLAY and
   70    ThreadToggleSubjDisplay / THREAD_TOGGLE_SUBJECT_DISPLAY are misnamed,
   71    as they toggle the display of the sender address, not the subject.
   72    [20130839 Urs Janssen <urs@tin.org>]
   73 
   74 o  the key ToggleHelpDisplay / GLOBAL_TOGGLE_HELP_DISPLAY is misnamed
   75    (like txt_help_global_toggle_mini_help, but at least text now is
   76    updated) wrong as it toggles tinrc.beginner_level which also controls
   77    displaying the posting etiquette
   78    [20210106 Urs Janssen <urs@tin.org>]
   79 
   80 o  there is a memleak in read_cmd_line_options(envargs()) if $TINRC is set
   81 
   82 Pager Problems
   83 --------------
   84 
   85 Posting Problems
   86 ----------------
   87 o  8bit chars in some headers are RFC-2047-encoded where this is not allowed
   88    according to usefor (Newsgrous, Distribution, ...) - do_rfc15211522_encode()
   89    simply encodes all headers no matter if any of them must not be encoded
   90    (see parse_rfc822_headers()).
   91    [20090112 Urs Janssen <urs@tin.org>]
   92 
   93 o  remove Message-IDs with 8bit chars in them when they occur in
   94    Message-ID or References header
   95    [done for References in replies/followups, Urs]
   96 
   97 o  keep RFC 6532 in mind as parts of it will sooner or later make it into
   98    NNTP (sic!).
   99    [20120220 Urs Janssen <urs@tin.org>]
  100 
  101 o  repost ('x') ignores some ~/.tin/attributes
  102    [fixed for mailing_list, Urs]
  103 
  104 o  forged cancelling via Supersedes:/Also-Control:/Control:-header is possible
  105    if it is supplied by hand (inews_prog=--internal)
  106 
  107 o  when last articles in a newsgroup were cancelled, it shows that there are
  108    new articles in that group (except when using -n cmd-line flag)
  109 
  110 o  mailers other than sendmail (f.e. mutt) and use_mailreader_i=OFF may lead
  111    to 'duplicated'-headers and multiple signatures
  112 
  113 New features
  114 ------------
  115 o  add code for other TLS/SSL libraries (wolfSSL, mbed TLS, ...)
  116    (<mbedtls/version.h> MBEDTLS_VERSION_STRING_FULL
  117     <wolfssl/version.h> LIBWOLFSSL_VERSION_STRING || OPENSSL_VERSION_TEXT)
  118 
  119 o  add "COMPRESS DEFLATE" support
  120    <https://www.rfc-editor.org/rfc/rfc8054.txt>
  121    [20100122 Urs Janssen <urs@tin.org>]
  122 
  123 o  add possibility to dump the current key mapping to a file
  124 
  125 o  make the group status flag (moderated, new, bogus, ...) configurable
  126    like the thread and article flag (select.c:build_gline(%f))
  127    [20210709 Urs Janssen <urs@tin.org>]
  128 
  129 o  add configure check for cl_clear_secret() in libcanlock and CL_API_MAJOR,
  130    CL_API_MINOR in canlock.h and if suitable prefer over bundled
  131    libcanlock (--with-canlock).
  132    [20190212 Urs Janssen <urs@tin.org>]
  133 
  134 o  update included libcanlock to >= 3.3.0
  135    [20211024 Urs Janssen <urs@tin.org>]
  136 
  137 o  allow per server cache_overview_files setting via serverrc.
  138    [20180215 Urs Janssen <urs@tin.org>]
  139 
  140 o  add something like default_cmd_line_opts (acting like $TINRC) to serverrc?
  141    precedence [low to high] = serverrc.def_cmd_line_opts, $TINRC, cmd-line?
  142    [20190205 Urs Janssen <urs@tin.org>]
  143 
  144 o  if we extend serverrc it should also get some 'M'enu.
  145    [20190205 Urs Janssen <urs@tin.org>]
  146 
  147 o  implement SAVE_APPEND_FILE_ALL ('A') and SAVE_OVERWRITE_ALL ('O') keys
  148    which just ask once if file(s) already exist (open_save_filename()).
  149    [20170811 Urs Janssen <urs@tin.org>]
  150 
  151 o  add second pipe command when piping multiple articles to use one
  152    pipe per article (currently it is one pipe for all). ':' could be
  153    used as key (only in use at the pager where this feature doesn't make
  154    sense).
  155    [20160412 Urs Janssen <urs@tin.org>]
  156 
  157 o  allow to cancel piping / saving multiple articles, ESC/'z' just stops the
  158    current one
  159    [20160409 Urs Janssen <urs@tin.org>]
  160 
  161 o  add per scope getart_limit via attributes
  162    [20131114 Urs Janssen <urs@tin.org>]
  163 
  164 o  add support for %A (Address), %C (Firstname), %N (Fullname) to
  165    group_format and thread_format
  166    (what about "conflicting" settings for show_author and %[ACIN]?)
  167    [20130925 Urs Janssen <urs@tin.org>]
  168 
  169 o  add a key to "drop" pending data from the server (either by
  170    disconnect/reconnect (fast but reconnect may fail due to rate limit or ...)
  171    or via calling drain_buffer() (might be slow if there is much pending
  172    data)) so one doesn't have to quit and restart tin if the client/server
  173    communication gets desynced (i.e by reading an article which has a non
  174    dot-stuffed lone '.' in it or the like)
  175    [20130615 Urs Janssen <urs@tin.org>]
  176 
  177 o  x_body currently doesn't allow cmd. execution via ! like x_headers
  178    [20110912 Urs Janssen <urs@tin.org>]
  179 
  180 o  add nntp_default_server to tin.defaults to override compile time setting.
  181    if given strings starts with / or ~ the value is taken from the referenced
  182    file, if it starts with $ it is read from the referenced variable.
  183    [20101118 Urs Janssen <urs@tin.org>]
  184 
  185 o  the old space_goto_next_article=ON && space_goto_next_unread=OFF is not
  186    possible with the new goto_next_unread rc-var, we need something like
  187    an additional goto_next_read rc-var
  188    [20101101 Urs Janssen <urs@tin.org>]
  189 
  190 o  add DEFAULT_SIGDASHES_REGEX and related 'M'enu-entry for signature
  191    detection in cook.c
  192    [20080925 Urs Janssen <urs@tin.org>]
  193 
  194 o  allow remapping of the 'z' abort-key (lynx style) in wait_for_input().
  195 
  196 o  add more user defined screen layout at different levels (e.g. posting
  197    history screen)
  198    (mostly done for selection, group and thread level)
  199    [20041025 Urs Janssen <urs@tin.org>]
  200 
  201 o  allow a Message-ID on the cmd. line to jump to the given article
  202    [20170718 Urs Janssen <urs@tin.org>]
  203 
  204 o  add more AUTHINFO SASL (RFC 4643, RFC 5802) support (DIGEST-MD5,
  205    EXTERNAL, ...) and a fallback if no libgsasl is found (e.g cyrus-sasl
  206    or a handrolled version for at least PLAIN)
  207    [20080316 Urs Janssen <urs@tin.org>]
  208 
  209 o  make 'GNKSA'-parser RFC5322/USEFOR compliant (e.g.
  210    misc.c:gnksa_dequote_plainphrase()) and fix bugs
  211 
  212 o  add XZVER (and XZHDR) support (zlib compressed yyencoded overview data)
  213    <http://helpdesk.astraweb.com/index.php?_m=news&_a=viewnews&newsid=9>
  214 
  215 o  the TLD checking in the 'GNKSA'-parser needs some rework, keeping the
  216    list of valid TLDs up to date is more or less impossible with the ~1400
  217    pending new TLDs
  218    [20131024 Urs Janssen <urs@tin.org>]
  219 
  220 o  add In-Reply-To threading for mailgroups
  221    [20030518 Urs Janssen <urs@tin.org>]
  222 
  223 o  make auto'S'ave also work for inrange groups
  224    (unfortunately 'S' at select level is used for something else)
  225    [20030508 Urs Janssen <urs@tin.org>]
  226 
  227 o  turn ask_for_metamail into $MM_NOASK support (see metamail(1))
  228    [20030314 Urs Janssen <urs@tin.org>]
  229 
  230 o  fetch overview data in chunks (e.g. 100 arts/chunk) to allow
  231    faster read interruption.
  232    [20020326 Dirk Nimmich <nimmich@muenster.de>]
  233 
  234 o  add bold-italic, bold-underline, italic-underline, bold-italic-underline
  235    word highlightings.
  236    [20020721 Urs Janssen <urs@tin.org>]
  237 
  238 o  allow bold, underline, italic, ... as color substitution for
  239    monochrome terminals (map green=underline, italic=yellow)
  240    (see also
  241    <nntp://news.tin.org/20020416202232.A4575@bloatware.reston01.va.comcast.net>)
  242    [20030218 Serge Matveev <sm@cl.spb.ru>]
  243 
  244 o  hierarchical 'M'enu, e.g. put all art_marked_*into a 'submenu',
  245    restructure/sort 'M'enu items, some display-options (render BiDi) are
  246    currently under expert options, some options in display options are
  247    navigation options (catchup thread, use mouse, ...)
  248    [20020322 Urs Janssen <urs@tin.org>]
  249 
  250 o  add a postponed 'browser' (store postponed arts in MH or maildir
  251    format to make things easier?)
  252    [20020305 Dirk Nimmich <nimmich@muenster.de>]
  253 
  254 o  add postpone option for mail-actions;
  255    reusing p'o'stponed articles in mailing_list groups doesn't work
  256    (possible fix: store Newsgroups (and other info) via msg_add_header()
  257     (to overwrite any old values) in X-Tin-Postponed:-header and remove it
  258     before posting.)
  259    [20010623 Urs Janssen <urs@tin.org>]
  260 
  261 o  should the postponed 'file' (and posted messages 'file') be in
  262    mailbox_format (even if that's a one file/message format, thus
  263    the 'file' actually needs to be a directory?).
  264 
  265 o  add maildir/maildir++ support (besides MBOX{O,RD} and MMDF},
  266    MH (not only reading but also writing), mailstore, BABYL, Kendra (MMDF
  267    like with 20*CTRL-A as sep.), MBX and MIX (indexed MBOX from UW-IMAP)
  268    and add man-pages for the various formats.
  269    (see <https://quimby.gnus.org/notes/BABYL> for BABYL,
  270     <http://www.qmail.org/man/man5/maildir.html> for maildir,
  271     <http://www.qmail.org/man/man5/mbox.html> for MBOXCL and MBOXCL2,
  272     <http://www.washington.edu/imap/listarch/2000/msg00363.html> for MBX,
  273     <http://www.washington.edu/imap/documentation/mixfmt.txt.html for MIX)
  274    [20020215 Urs Janssen <urs@tin.org>]
  275 
  276 o  add $LOCKEXT support
  277    [20030611 Urs Janssen <urs@tin.org>]
  278 
  279 o  add xxencode (<http://www.debath.co.uk/code/xxencode.c>),
  280    base224 (<http://b-news.sf.net/>), xBin <http://www.xbin.org/>,
  281    base91 (<http://base91.sourceforge.net/>) and yenc (hide/decode-)support
  282    (see <http://yydecode.sourceforge.net/> for readable code, ignore
  283    the crap on <http://www.yenc.org/>). also check
  284    <http://www.exit109.com/~jeremy/news/binaries/> which might replace yenc
  285    etc.pp. some day.
  286    [20020216 Urs Janssen <urs@tin.org>]
  287 
  288 o  add "Face:" (incompatible "X-Face:"-replacement) support?
  289    [20040107 Urs Janssen <urs@tin.org>]
  290 
  291 o  turn CA_ERROR_SPACE_IN_NEWSGROUPS, CA_ERROR_NEWLINE_IN_NEWSGROUPS,
  292    CA_ERROR_SPACE_IN_FOLLOWUP_TO, CA_ERROR_NEWLINE_IN_FOLLOWUP_TO into
  293    CA_WARNING_s (see RFC 5536 3.1.4. and 3.2.6.) and mark them
  294    for removal in the future.
  295    [define ALLOW_FWS_IN_NEWSGROUPLIST to turn the mentioned errors into
  296     warnings. 20011226 Urs Janssen <urs@tin.org>]
  297 
  298 o  support "Suggested Minimal Digest Format"
  299    <ftp://rtfm.mit.edu/pub/usenet/news.answers/faqs/minimal-digest-format>
  300 
  301 o  add new threading method: thread by reference, but split threads on
  302    subject change
  303    [Urs Janssen <urs@tin.org>]
  304 
  305 o  rewrite thread-method selection that users can easily combine different
  306    threading methods (THREAD_SUBJ + THREAD_MULTI || THREAD_REFS +
  307    THREAD_MULTI || ...) - see also note in art.c
  308    [20011117 Urs Janssen <urs@tin.org>]
  309 
  310 o  add counter to post-processing commands (processing file x of y)
  311    (Is post-processing really that slow? [Jason Faultless
  312    <jason@altarstone.com>] no but if you post-process more than a
  313    handful of files it would be useful [Urs Janssen <urs@tin.org>])
  314 
  315 o  add key to toggle article and thread sorting preferences on the fly
  316    (like 'u' for threading)
  317 
  318 o  check if servers high mark is lower than the one in users newsrc, if so
  319    issue a warning and allow the luser to reset the highmark in the newsrc
  320    to the servers 'l'ow or the servers 'h'igh mark or 'i'gnore it.
  321 
  322 o  check if the articles Subject/From in the pager matches (minus
  323    whitespaces) the one on the overview file (if available) - if not
  324    issue a warning that the servers overviews seem to be broken. trust
  325    the headers, not overviews. (see note in rfc2046.c)
  326    do the same with the article numbers in the (cached) overview
  327    data (we already do this, but currently this will lead to article "loss").
  328    if they are higher than the server's high-mark don't trust them (and
  329    discard the locally cached data).
  330 
  331 o  attributes (still) needs some work; See doc/config-anomalies.
  332    [20030303 Dirk Nimmich <nimmich@muenster.de>]
  333 
  334 o  add IPv6 support
  335    (add protocol independent wrappers which use IPv6 (functions)
  336     whenever possible).
  337    there are two small problems with the minimalistic IPv6 support which is
  338    currently in tin: when getaddrinfo() is used to get the name/ip of the
  339    newsserver it always uses DNS (gethostbyname()/gethostbyaddr() checked
  340    /etc/hosts first) and getaddrinfo() seems to have a (huge) delay in some
  341    cases. use getipnodebyname()/getipnodebyaddr() (if available) instead.
  342    check for gethostbyaddr_r()/gethostbyname_r() and use them instead
  343    of gethostbyaddr()/gethostbyname() if available.
  344 
  345 o  add cmd-line/tinrc-switch to fetch only headers of unread articles;
  346    in that case, make 'r' reading the rest of the articles
  347    [-G is a start]
  348    allow setting a per group limit via attributes
  349 
  350 o  check if server supports 'LIST MODERATORS' and/or 'LIST DISTRIB.PATS' and
  351    if it does parse the output so it can be shown to the user. (e.g. when
  352    posting to a moderated group, show the moderators mail-address, but still
  353    leave the mailing to the server; if the group has limited distribution
  354    inform the user, ...)
  355 
  356 o  if using "-n" command-line switch you can't subscribe to newsgroups not
  357    present in your newsrc - a simple check against the server
  358    (e.g. GROUP $newsgroup or if !NNTP try to stat the dir) would help.
  359    if the server understands "LIST ACTIVE grp" we could also get the group's
  360    attribute (moderated, etc.) and with "LIST NEWSGROUPS grp" it's
  361    description.
  362 
  363 o  item_by_item_etiquette_warnings [compile-time?]
  364    (e.g. enable x-posts without f'up warning, disable long-sig warning)
  365 
  366 o  posted_articles_file is not available in attributes
  367    [20130628 Urs Janssen <urs@tin.org>]
  368 
  369 o  unify Fcc and posted_articles_file
  370    [20031012 Dirk Nimmich <nimmich@muenster.de>]
  371 
  372 o  MIME-pgp support according to RFC 2015, RFC 3156 - (should be easy now)
  373    and/or in the format that used by signcontrol/pgpverify (see also
  374    tinews.pl)
  375    As MIME-pgp verification needs the undecoded mime-part with its headers
  376    storing the raw-offset of each part in the article would be very helpful.
  377 
  378 o  pgpverify invocation with a single key instead of '|''a''pgpverify' or a
  379    built-in pgpverify solution.
  380 
  381 o  pgp-{6,7} support
  382 
  383 o  use runtime config for pgp instead of hardcoded values depending on
  384    compile time detection, i.e. have tinrc vars for pgp_decode, pgp_verify, ...
  385    like in mutt and/or
  386 
  387 o  add check for GPGME (<http://www.gnupg.org/related_software/gpgme/>) and if
  388    found use it for pgp actions.
  389 
  390 o  add feature Cc:
  391 
  392 o  add feature show_new_newsgroups_since
  393 
  394 o  add new key which tags articles based on a prompted regex, could be used
  395    for GROUP_MARK_THREAD_READ,PAGE_MARK_THREAD_READ,THREAD_MARK_ARTICLE_READ
  396    and/or something like GROUP_SELECT_THREAD/THREAD_SELECT_ARTICLE which
  397    works on tagged arts (the later might be useful in conjunction with
  398    GROUP_MARK_UNSELECTED_ARTICLES_READ)
  399    [20051110 Urs Janssen <urs@tin.org>]
  400 
  401 o  Additions to the thread menu:
  402      ']'  (GLOBAL_QUICK_FILTER_KILL)
  403      '['  (GLOBAL_QUICK_FILTER_SELECT)
  404      'r'  (reply to) /* not 'R' cause it conflicts with mail_bugreport */
  405      ''   r should be toggle show all/show only unread
  406      'f'  (post a followup) (maybe also 'F', '^W', ...)
  407      'N'  (next unread article)
  408      'P'  (previous unread article)
  409      'V'  (View/pipe/save multimedia attachments)
  410      'X'  (mark all unread articles that have not been selected as read)
  411      ';'  (mark unread arts as hot if >= 1 art in thread is hot)
  412      '+'  (mark thread as hot)
  413      '='  (mark pattern as hot)
  414      '@'  (toggle selections)
  415      'Y'  (check for new articles in thread)
  416      '%'  (toggle rot13 encoding of screen content)
  417      'x'  (repost)
  418      'e'  (edit mailgroup article)
  419      keys to go to previous/next thread
  420 
  421 o  Additions to the group menu:
  422      'V'  (View/pipe/save multimedia attachments)
  423      'Y'  (check for new articles in group)
  424      '%'  (toggle rot13 encoding of screen content)
  425 
  426 o  Additions to the select menu:
  427      '%'  (toggle rot13 encoding of screen content)
  428      key to toggle groupname abbreviation
  429 
  430 o  Add to the 'M'enu:
  431      '&'  (GLOBAL_TOGGLE_COLOR)
  432      and maybe a way to change built in path like DEFAULT_MAILER, PATH_PGP, ...
  433 
  434 o  Add to the attachment menu ('V'):
  435      'F'  post followup to current article, not including current attachment
  436      'f'  post followup to current article, including current (or tagged)
  437           attachment(s)
  438      'm'  mail attachment
  439      'o'  print attachment
  440      'r'  reply through mail to author, including current attachment
  441      ''   reply through mail to author, not including current attachment
  442           ('R' is already taken by GLOBAL_BUGREPORT)
  443      't'  tag attachments for '|', 'p', 's', 'm' (done for 's')
  444      '#'  tag range of attachments (n-m)
  445      'x'  repost current attachment to another group
  446      '%'  (toggle rot13 encoding of screen content)
  447      '&'  (GLOBAL_TOGGLE_COLOR)
  448 
  449 o  Add to the posting history screen (W'):
  450      'M'  OptionMenu
  451 
  452 o  Add to the URL Menu ('U'):
  453      'M'  OptionMenu
  454 
  455 o  integrate multi-part tagging with regular tagging, eg.
  456    "This article appears to have multi-parts, try and find them (y/n)?"
  457 
  458 o  Add a command-line switch (-V) that prints out all values of cpp-symbols
  459    etc. [partly done, but should be cleaned up]
  460 
  461 o  Reorganize tinrc into related sections for easier editing
  462    e.g., Display, Posting etc.
  463 
  464 o  A system-wide tinrc configuration file (to hold some defaults).
  465    [done: /etc/tin/tinrc] A key code to reset to the system defaults.
  466    Maybe a second file which could be used to force settings (eg.
  467    inews & mailer) (tin.defaults [--with-defaults-dir] is a start)
  468 
  469 o  when From: only contains "First-name Last-name" tin strips the
  470    Last-name in group/thread/page-level
  471    [20020319 Urs Janssen <urs@tin.org>]
  472 
  473 o  Bounce duplicate Message-ID's when the headers are read. This will
  474    make the threading code happier too.
  475    [Jason Faultless <jason@altarstone.com>]
  476 
  477 o  Merge the selection code with the range code. Having two similar methods
  478    of picking articles with similar goals is wasteful.
  479    [Jason Faultless <jason@altarstone.com>]
  480 
  481 o  add check for liblzma/libbzip2/zlib (>=1.1.4)/[mini]lzo, lzlib, liblz4,
  482    liblrzip, libzstd, ...
  483    (<http://tukaani.org/xz/>, <http://sources.redhat.com/bzip2/>,
  484     <https://zlib.net/>, <http://www.oberhumer.com/opensource/lzo/>,
  485     <http://lzip.nongnu.org/lzlib.html>, <http://code.google.com/p/lz4/>,
  486     <http://freecode.com/projects/long-range-zip>,
  487     <https://github.com/facebook/zstd>) and add an option to
  488    write/read *zipped local overviews.
  489    the libs might also be used for post-processing articles.
  490 
  491 o  rewrite/cleanup all the debugging code, the output in /tmp is messy; the
  492    on screen output either slows down things dramatically or is unreadable;
  493    split DEBUG_MISC?
  494    [Urs Janssen <urs@tin.org>]
  495 
  496 o  replace gettimeofday() with clock_gettime() if available in parsdate.y
  497    as POSIX.1-2008 marks gettimeofday() as obsolete.
  498    [20110910 Urs Janssen <urs@tin.org>]
  499 
  500 o  Add 'M'enu option to define chars for utf8_graphics.
  501 
  502 o  allow user defined mouse button bindings (like keymap).
  503 
  504 Posting enhancements
  505 --------------------
  506 o  sort Followup-To:/Newsgroups: after stripping doubled newsgroups and
  507    before checking if they are identical, if so, strip Followup-To: and
  508    use unsorted but stripped Newsgroups:-line only
  509    ulBuildArgv() would be good for this
  510 
  511 o  if Newsgroups:-line has groups in it which are not present in the users
  512    active file ask the user if he wants to strip these groups from the
  513    newsgroups-line (N/y)
  514    do the same for Followup-To:
  515 
  516 o  check if any valid groups are in the Followup-To:-line and if not inform
  517    the user and use Newsgroups: instead (at the start of post_response())
  518 
  519 o  bring up a warning on a long Newsgroups: (>=5) line and
  520    force the user to confirm every single group he wants to post (or
  521    redirect followups to) in. (N/y)
  522 
  523 o  bring up a warning when trying to f'up into a binary group
  524    (use a regexp to detect binary groups e.g.:
  525     (?:\.binae?r|de\.alt\.dateien\.))
  526    (Warning, sending a followup to a binary group is undesired, post it
  527     anyway? N/y)
  528    [Urs Janssen <urs@tin.org>]
  529 
  530 o  posting to a binary group should warn if no followup is set to another
  531    group/poster (you have not set a target for a possible discussion on your
  532    post, would you like to go on anyway? N/y)
  533    [Urs Janssen <urs@tin.org>]
  534 
  535 o  when posting to a group containing uppercase-letters: bring up a
  536    warning: "Newsgroup-names should be all lowercase, correct it? (Y/n)"
  537 
  538 o  Enhance -n to take newsgroup name as argument and use group_get_art_info()
  539    to allow posting to groups other than those in newsrc.
  540 
  541 o  add config option for (external) viewer to show postings stored in
  542    keep_posted_articles_file
  543    [20021003 Michael Gerhards <HM-Gerhards@uni.de>]
  544 
  545 Filtering enhancements
  546 ----------------------
  547 o  add Xref + Path filter to the filter-menu
  548 
  549 o  add used filter-type to filter file or filter rule or use different
  550    filter files for wildmat/regexp
  551 
  552 o  add command: mark all articles older/newer than <date> (or <days>) as
  553    read (useful when subscribing to a new group with high-traffic...)
  554 
  555 o  fix kill/hot mechanism so that it is possible to match articles on
  556    arbitrary headers
  557    [done for Path, Dennis]
  558 
  559 o  don't strip "Re: " out of the subject before applying the filter on it
  560 
  561 o  allow any given amount of days in default_filter_days not only
  562    {1, 2, 4} * 28 days
  563 
  564 o  allow expiring filter entries n-days after the last time they matched
  565 
  566 o  add command to generate filter rules for all currently tagged articles
  567 
  568 o  allow editing of the strings presented in the kill-Menu for
  569    "Kill Subject", "Kill From", "Kill Msg-Id" without having to edit
  570    the full filter-file
  571    [20120201 Urs Janssen <urs@tin.org>]
  572 
  573 o  allow ranges in gnksa-filters "gnksa=200-399" or "gnksa=101,103,201"
  574    [20200709 Urs Janssen <urs@tin.org>]
  575 
  576 Pager enhancements
  577 ------------------
  578 o  add 'autoview' (spawn external viewer) 'autohide' (don't even show info
  579    about that part) for different content-types
  580 
  581 o  add Content-Language (RFC 3282 or even RFC 8255) analysis
  582 
  583 o  suppress hide_uue=2 checking unless first line in an article or following
  584    a blank line
  585 
  586 o  add missing mailcap (RFC 1524) features: %n, %F, copiousoutput, print,
  587    if no %s appears in the view-command (or edit fields) the body part needs
  588    to be passed to the command as standard input, ...
  589    [20111205 Urs Janssen <urs@tin.org>]
  590 
  591 o  add BiDi handling to page header
  592 
  593 Internal Changes
  594 ----------------
  595 o  use tin_gettime() in *StopWatch() instead of ftime(3)
  596    [Urs Janssen <urs@tin.org>]
  597 
  598 o  merge refs.c:valid_msgid() and post.c:damaged_id()
  599    [Urs Janssen <urs@tin.org>]
  600 
  601 o  in ENABLE_NLS case replace PLURAL() macro with proper use of
  602    ngettext(3) (if found by configure) to support languages with
  603    more than one plural form.
  604    [20150113 Urs Janssen <urs@tin.org>]
  605 
  606 o  rename disable_gnksa_domain_check to enable_gnksa_domain_check and
  607    invert logic now the default changed
  608    [20131119 Urs Janssen <urs@tin.org>]
  609 
  610 o  curses.c:input_pending() and curses.c:get_arrow_key() have
  611    #ifdef HAVE_SELECT and a code path for the case when we don't have
  612    select(2), but read.c:wait_for_input() has no code path for the
  613    !HAVE_SELECT case. we should add a !HAVE_SELECT case there (or at
  614    least have adjusted messages in txt_reading_article and txt_group)
  615    [20110506 Urs Janssen <urs@tin.org>]
  616 
  617 o  ditch MAX_MSG_HEADERS (post.c)
  618    [20110212 Urs Janssen <urs@tin.org>]
  619 
  620 o  always display (also) the servers error response string to the user,
  621    currently tin sometimes gives generic messages (e.g. when authentication
  622    fails), but the servers response may include additional info (like
  623    bandwidth exceeded)
  624    [20101230 Urs Janssen <urs@tin.org>]
  625 
  626 o  rewrite mini-help, remove the long strings and generate them dynamically
  627    one help text for each key makes translations more easy and unique and can
  628    use the available space on the screen much better if not running on 80
  629    columns.
  630    [20100326 Urs Janssen <urs@tin.org>]
  631 
  632 o  rewrite auth.c
  633    - turn t_bool authinfo_user, authinfo_sasl, authinfo_state into
  634      enum authinfo { NONE = 0, USER = 1, SASL = 2 }
  635 
  636 o  fix aclocal.m4:CF_FUNC_SYSTEM and/or misc.c:invoke_cmd() that
  637    --enable-broken-system-fix/IGNORE_SYSTEM_STATUS isn't needed anymore.
  638    [20090520 Urs Janssen <urs@tin.org>]
  639 
  640 o  move several (server related) files into the per-server dir e.g.:
  641       ${TIN_INDEX_NEWSDIR-"${TIN_HOMEDIR-"$HOME"}/.tin"}/.news${NNTPSERVER+"-$NNTPSERVER"}/
  642    should be
  643       ${TIN_INDEX_NEWSDIR-"${TIN_HOMEDIR-"$HOME"}/.tin"}${NNTPSERVER+"/$NNTPSERVER"}/.news/
  644    [20050807 Urs Janssen <urs@tin.org>]
  645 
  646 o  remove untranslatable constructs like txt_prefix_*, txt_marked_as_*, ...
  647    [20050413 Urs Janssen <urs@tin.org>]
  648 
  649 o  keys which could be renamed/merged:
  650    - 'l' GroupListThd, PageListThd
  651    - 'm' GroupMail, PageMail, PostMail, ThreadMail
  652    - 'D' GroupCancel, PageCancel, ThreadCancel
  653    - 'N' GroupNextUnreadArt, PageNextUnreadArt, (SelectNextUnreadGrp)
  654    - 'S' GroupAutoSave, PageAutoSave, ThreadAutoSave
  655    - 'P' GroupPrevUnreadArt, PagePrevUnreadArt
  656    - '@' GroupReverseSel, ThreadReverseSel
  657    - '~' GroupUndoSel, ThreadUndoSel
  658    [20050408 Urs Janssen <urs@tin.org>]
  659 
  660 o  read_overview() calls eat_re() which strips the "Re: " out of the
  661    subject. the modified subject is used for batch_mode opperatios (-N/-M)
  662    which might not be what ppl. expect and eat_re() is the only function
  663    which needs the 'regex' overhead in batch_mode... (see also the note
  664    about "Re: "-stripping at "Filtering enhancements").
  665    [20050225 Urs Janssen <urs@tin.org>]
  666 
  667 o  use new_nntp_command() instead of nntp_command() in the rest of the
  668    code (where useful; if we do a global change, rename it to
  669    nntp_command()). see check_extensions() for a sample usage.
  670    [20050211 Urs Janssen <urs@tin.org>]
  671 
  672 o  replace various occurrence of "US-ASCII" by DEFAULT(_MIME)_CHARSET
  673    and define that to "US-ASCII" (to make 'updates' easier).
  674    [20040929 Urs Janssen <urs@tin.org>]
  675 
  676 o  get rid of CURR_GROUP, use t_group instead
  677    create a global t_group *CURR_GROUP instead of the current macro
  678    reduce dependencies on my_group[] & selmenu outside of select.c
  679    [20030501 Urs Janssen <urs@tin.org>]
  680 
  681 o  clean up $AUTOSUBSCRIBE code (the NNTP code path is a mess)
  682    [20030412 Urs Janssen <urs@tin.org>]
  683 
  684 o  make configure look for strrstr() in libpub & publib.h
  685    [Urs Janssen <urs@tin.org>]
  686 
  687 o  reorder several structs to avoid padding e.g. t_capabilities (but that's
  688    just used once, no big win here). (see gcc -Wpadded and/or pahole(1))
  689    [Urs Janssen <urs@tin.org>]
  690 
  691 o  what type is base[]? (long, see memory.c:init_alloc()~102)
  692    There is a lot of confusion internally over how it is used
  693    compare setup_hard_base() with find_base() etc..
  694    [Jason Faultless <jason@altarstone.com>]
  695 
  696 o  check where PRODUCT should be used instead of tin_progname and/or "tin"
  697    [Urs Janssen <urs@tin.org>]
  698 
  699 o  check where NEWSRC_FILE should be used in lang.c instead of "newsrc"
  700 
  701 o  check where iKeyAbort should be used instead of ESC (etc.pp.)
  702    (AFAICS all fixed except prompt.c and read.c/'z')
  703    [Urs Janssen <urs@tin.org>]
  704 
  705 o  close potential security holes:
  706    - remove fixed length buffers (find_nov_file(), print_from(),
  707      quote_space_to_dash(), escape_shell_meta(), backup_article(),
  708      build_messageid(), get_secret(), get_host_name(), get_domain_name(),
  709      get_fqdn(), get_user_name(), get_full_name(), build_sender(), ...)
  710    - change all system()/popen() calls to fork() and exec() calls
  711    - check where we should use snprintf() instead of sprintf()
  712    - check where we should use strncat() instead of strcat()
  713    - check where we should use strncpy() instead of strcpy()
  714    - check possible races with access()/link()/rename()/stat()/
  715                                unlink()/chdir()/fopen()/fstat()/open()/
  716                                opendir()/t_open()/tmpfile()
  717    - check getenv() results before using it
  718    - check where my_strncpy() or STRCPY() should be used
  719    [Urs Janssen <urs@tin.org>]
  720 
  721 o  split tin.h/proto.h for better dependencies in Makefile
  722 
  723 o  check where int/long/... should be replaced by size_t, uid_t, mode_t,
  724    off_t, ...
  725    [Urs Janssen <urs@tin.org>]
  726 
  727 o  check code with
  728    valgrind (<http://valgrind.org/>),
  729    cppcheck (<https://trac.cppcheck.net/>),
  730    Coverity (<https://scan.coverity.com/projects/993>),
  731    gcc-10 -fanalyzer
  732    (<https://gcc.gnu.org/onlinedocs/gcc/Static-Analyzer-Options.html>),
  733    clang-analyzer (<http://clang-analyzer.llvm.org/>),
  734    infer (<http://fbinfer.com/>)
  735    Splint (LCLint) <http://www.splint.org/>,
  736    zzuf (<http://caca.zoy.org/wiki/zzuf>) and
  737    aflnet (<https://github.com/aflnet/aflnet>)
  738 
  739 o  strip Xref:-header if saving news in batch mode (-S)?
  740    [Urs Janssen <urs@tin.org>]
  741 
  742 o  rewrite code to use INEWS_PATH instead of INEWSDIR
  743    [20021007 Urs Janssen <urs@tin.org>
  744 
  745 o  remove built in path of external commands (metamail, ispell, ...)
  746    [for ispell $ISPELL can be used to override systempath and progname]
  747 
  748 o  add configure-switch for DISABLE_PIPELINING
  749    [20090612 Urs Janssen <urs@tin.org>]
  750 
  751 o  mask inline pgp signature/key block like we do for uu-sections
  752    [20090722 Urs Janssen <urs@tin.org>]
  753 
  754 o  some non fixed width strings could be formatted nicer (warp on last space
  755    before cCOLS), e.g. txt_warn_downgrade
  756    [20110325 Urs Janssen <urs@tin.org>]
  757 
  758 o  too much code is compiled when configured NO_POSTING
  759    [20210206 Urs Janssen <urs@tin.org>]
  760 
  761 Unicode
  762 -------
  763 o  make mm_network_charset an "option_list" to avoid junk input or
  764    undesired (UTF-1, UTF-7, UTF-16*, UTF-32*, UCS-2, UCS-4, ...) encodings.
  765    add configure check for the hard coded charsets (try iconv_open(x,
  766    us-ascii) on each...) and disable those not available.
  767    (think about more network charsets (GB2312, GB18030, Shift_JIS,
  768     ISO-8859-6[-{I,E}], ISO-8859-8[-{I,E}], ISO-8859-11, VISCII, VIQR;
  769     check whether KOI8-RU is still used/valid))
  770    [done except configure check 20010907 urs@tin.org]
  771 
  772 o  make mm_network_charset a user configurable item list
  773    ("US-ASCII:ISO-8859-1:ISO-8859-9:ISO-8859-15:UTF-8",
  774     "US-ASCII:ISO 8859-5:KOI8-R:UTF-8",
  775     "EUC-CN:ISO-2022-CN:ISO-2022-CN-EXT:Big5:UTF-8", whatever)
  776    and try all given charsets in order till the one is found which matches
  777    best (i.e. can display most (all) of the chars in the article).
  778    (see also RFC 2046 4.1.2)
  779    [20050805 <urs@tin.org>]
  780 
  781 o  add IDNA 2003 (RFC 3490ff.) and IDNA 2008 (RFC 5890ff.) support,
  782    (<http://www.gnu.org/software/libidn/> IDNA 2003,
  783     <http://jprs.co.jp/idn/index-e.html> IDNA 2008,
  784     <http://site.icu-project.org/> IDNA (uidna_IDNToUnicode()
  785      and/or with ICU >=4.6 uidna_nameToUnicode(uidna_openUTS46)),
  786     <http://www.gnu.org/s/libidn/#libidn2> IDNA 2008)
  787    (added minimalistic IDNA decoding support if a recent libidn is found, urs)
  788    [20030917 Urs Janssen <urs@tin.org>]
  789 
  790 o  add normalization
  791    (via <http://site.icu-project.org/> or
  792    <http://www.gnu.org/software/libidn/> or
  793    <http://www.gnu.org/software/libunistring/>)
  794    (done for search strings and threading, missing for filtering etc. pp.)
  795    [20031209 Michael Bienia <michael@vorlon.ping.de>]
  796 
  797 o  rewrite ICU configure checks
  798    [20180710 Urs Janssen <urs@tin.org>]
  799 
  800 o  check for wcsftime() and if found use it instead of strftime() (at
  801    least in page.c).
  802    [20130129 Urs Janssen <urs@tin.org>]
  803 
  804 o  BiDi handling to select-, group-, thread-level
  805 
  806 Docs/online help
  807 ----------------
  808 o  document the difference between
  809    - "-D 1" (nntp dialog with likely long multilines responses skipped)
  810    - "-vD 1" (full nntp dialog)
  811    - "-vvD 1" (full nntp dialog plus diagnostic messages)
  812 
  813 o  the documentation of PageFollowupQuoteHeaders (^W) and
  814    PageReplyQuoteHeaders (^E) is wrong as not all headers but just those
  815    visible via news_headers_to_display (or all if raw mode is on
  816    (PageToggleHeaders (^H)) are included.
  817    [20100911 Urs Janssen <urs@tin.org>]
  818 
  819 o  the online help of GroupMarkUnselArtRead 'X' is unclear as it doesn't
  820    say that the article are marked read
  821    [20090814 Urs Janssen <urs@tin.org>]
  822 
  823 o  document the different signals/actions
  824    [20080209 Urs Janssen <urs@tin.org>]
  825 
  826 o  review the Spanish, Swedish and Russian translations
  827    (es.po, sv.po, ru.po); add/finish missing man-page translation(s).
  828 
  829 o  add installation guide (in html?)
  830 
  831 o  add cross-compilation hints
  832    	CC="crosscc" LD="crossld" AR="crossar" RANLIB=":" MAKE="crossmake" \
  833    	./configure --with-build-cc=gcc --with-build-cpp=cpp \
  834    	--target=cross-traget-triple --without-x # usual configure flags
  835 
  836 o  better document keymap feature
  837 
  838 o  man page always needs work and proof reading
  839    e.g. 'U', 'V' in pager need better documentation, random organization
  840    feature isn't documented at all.
  841 
  842 o  submit short invocation examples to tldr
  843    <https://github.com/tldr-pages/tldr> and/or eg
  844    <https://github.com/srsudar/eg>
  845 
  846 o  replace "\\" by "\e" in man pages (portable?)
  847 
  848 o  integrate doc/auth.txt into tin.1 man page
  849 
  850 o  document ${HOST:-"$HOSTNAME"} fallback if gethostname(2) and uname(2)
  851    do not return a hostname
  852 
  853 o  the limited pgp support (inline pgp as of RFC 4880, just signature
  854    verification or key import but no decryption ...) is nearly undocumented
  855    in the man page
  856 
  857 Not yet classified
  858 ------------------
  859 o  should -X (no overwrite) and/or -G/tinrc.getart_limit with
  860    cache_overview_files=ON warn that tin will not cache the overviews?
  861 
  862 o  verbatim regions can't be nested, should they?
  863 
  864 o  allow per group cancel_lock_algo setting via attributes?
  865    [20170810 Urs Janssen <urs@tin.org>]
  866 
  867 o  allow per group cache_overview_files setting via attributes?
  868    [20180215 Urs Janssen <urs@tin.org>]
  869 
  870 o  DIRSEP (set in tin.h (to '/')) is used in places in the code
  871    and hardcoded '/' elsewhere (i.e. joinpath(), ...); the DIRSEP
  872    looks like a leftover from when removing the non UNIX code
  873    [20210112 Urs Janssen <urs@tin.org>]
  874 
  875 o  exit HEAD/NEXT loop on 5xx responses to HEAD? (see
  876    art.c:open_art_header())
  877    [20161011 Urs Janssen <urs@tin.org>]
  878 
  879 o  follow $LC_COLLATE (e.g. add strxfrm() to subj_comp_*/from_comp_*)?
  880    [20160421 Urs Janssen <urs@tin.org>]
  881 
  882 o  IDNA decode news_headers_to_display?
  883    [20160227 Urs Janssen <urs@tin.org>]
  884 
  885 o  sometimes we convert the supplied server name to lowercaes (for cached
  886    overviews) and sometimes we don't (nrctbl.c code and -g arg). Thus
  887    -g Foo.bAr.eXample may result in file not found
  888    for entries like '*       ~/.tin/.newsrcs/${NNTPSERVER-localhost}'
  889    even there is a ~/.tin/.newsrcs/foo.bar.example file.
  890    Should we always lowercase $NNTPSERVER / -g? (but still allow
  891    upper/camelcase for -f or a fixed filename in newsrctable).
  892    [20160225 Urs Janssen <urs@tin.org>]
  893 
  894 o  add "host:port" notation support for -g as shortcut for -p port -g host
  895    [20160222 Urs Janssen <urs@tin.org>]
  896 
  897 o  allow "begin-base64"/"====\n" as start/end marker for UUE-blocks besides
  898    the traditional "begin"/"end\n"?
  899    [20151204 Urs Janssen <urs@tin.org>]
  900 
  901 o  cache_overview_files also affects $TIN_INDEX_MAILDIR and $TIN_INDEX_SAVEDIR
  902    overviews, is this desired?
  903    [20151112 Urs Janssen <urs@tin.org>]
  904 
  905 o  articles without a Message-ID are skipped as the code currently depends
  906    on Message-IDs, but they might show up in mailgroups - assign a pseudo
  907    Message-ID to them?
  908    [20151111 Urs Janssen <urs@tin.org>]
  909 
  910 o  create missing dir(s) in path to newsrc, right now get_newsrcname()
  911    usually comes up with
  912    "No permissions to go into /home/$USER/.tin/${NNTPSERVER}"
  913    if one uses something like
  914    *  ~/.tin/${NNTPSERVER-localhost}/.newsrc
  915    in newsrctable
  916    [20150121 Urs Janssen <urs@tin.org>]
  917 
  918 o  make --with-defaults-dir= default to $sysconfdir/tin
  919    (=/usr/local/etc/tin)?
  920    [20110809 Urs Janssen <urs@tin.org>]
  921 
  922 o  Supersedes (and repost) don't reuse the Reply-To: header of the original
  923    article
  924    [20110808 Urs Janssen <urs@tin.org>]
  925 
  926 o  what about !us-ascii chars in username/password when using
  927    AUTHINFO USER/PASS? Currently they are sent as is, RFC 3977 says
  928    "The character set for all NNTP commands is UTF-8", RFC 4643 doesn't
  929    mention any special handling.
  930    [20101104 Urs Janssen <urs@tin.org>]
  931 
  932 o  charset conversion fails when converting articles from multibyte charsets
  933    with 0 bytes (UCS2, UCS4, UTF-16[[LB]E], UTF-32[[LB]E], ...), currently
  934    we just skip over such parts instead of handling them properly
  935    [20100905 Urs Janssen <urs@tin.org>]
  936 
  937 o  the documentation suggests that novrootdir/$TIN_NOVROOTDIR defaults to
  938    spooldir/$TIN_SPOOLDIR if unset, which is not exactly what happens as
  939    this default is set at configure/compile time, not at runtime, so
  940    setting $TIN_SPOOLDIR to something different than the default will not
  941    automatically adjust $TIN_NOVROOTDIR at runtime. we should either
  942    fix the documentation or the behaviour.
  943    [20100103 Urs Janssen <urs@tin.org>]
  944 
  945 o  un/subscribe_pattern() is very slow on servers with a huge active file
  946    [20091223 Urs Janssen <urs@tin.org>]
  947 
  948 o  replace wildmat.c with uwildmat.c
  949    <http://inn.eyrie.org/trac/browser/trunk/lib/uwildmat.c>? It knows poison
  950    patterns and can handle UTF-8 strings
  951    [20091223 Urs Janssen <urs@tin.org>]
  952 
  953 o  support $XDG_CONFIG_HOME[S] / $XDG_DATA_HOME[S] / $XDG_RUNTIME_DIR /
  954    $XDG_CACHE_HOME (eg. for cached NEWSGROUPS_FILE)
  955    <http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html>
  956    [20081010 Urs Janssen <urs@tin.org>]
  957 
  958 o  add //IGNORE iconv-option like //TRANSLIT?
  959    [20080824 Urs Janssen <urs@tin.org>]
  960 
  961 o  what about REDIRECT_OUTPUT? shouldn't we better add this to DEFAULT_PRINTER
  962    so ppl. can override it via the 'M'enu? and shouldn't DEFAULT_PRINTER be
  963    detected via configure?
  964    [20080625 Urs Janssen <urs@tin.org>]
  965 
  966 o  create debug output in
  967    ${TIN_HOMEDIR-"$HOME"}/.tin"}${NNTPSERVER+"/$NNTPSERVER"}
  968    instead of in $TMPDIR (as it may contain username and password,
  969    access restrictions in $TMPDIR are a bad idea as other users
  970    need to be able to overwrite the file (multi user system)).
  971    [20080211 Urs Janssen <urs@tin.org>]
  972 
  973 o  -M/-N report is mailed to userid, should we use tinrc.mail_address
  974    instead?
  975 
  976 o  tin uses the first sig-isolator as recent one, USEFOR says it should
  977    use the last. There is no consensus that tin should follow this USEFOR
  978    requirement.
  979 
  980 o  'K' is still a bit inconsistent:
  981    - in the group and thread menu it marks current item read & jumps to the
  982      next unread item.
  983    - in the article pager (page.c) it marks the rest of the current thread
  984      read and jumps to the next unread article. should we let 'K' behave
  985      like <TAB> in the pager?
  986 
  987 o  rename prompt_followupto (to prompt_extra_headres) and make it an option
  988    list like {"Followup-To"; "Summary"; "Keywords";
  989    "Followup-To & Summary"; "Followup-To & Keywords";
  990    "Summary & Keywords"; "Followup-To, Summary & Keywords"} or make it a
  991    user-definable text field like news_headers_to_display? or leave this
  992    entirely to the user - he could tweak attributes accordingly.
  993    [20060503 Urs Janssen <urs@tin.org>]
  994 
  995 o  in several places only the latest keybinding is shown in prompts
  996     (e.g. "q=quit, e=edit, i=ispell, g=pgp, M=menu, w=post, o=postpone: w"
  997      with "PostPost	p	y	w" in keymaps)
  998    should we try to show them all?
  999    [20050718 Urs Janssen <urs@tin.org>]
 1000 
 1001 o  remove hard coded keys (eg. 'q') from txt_filter_global_rules,
 1002    txt_reading_article, txt_select_config_file_option, txt_group and
 1003    replace with actual keybinding (after making it rebindable).
 1004    [20200526 Urs Janssen <urs@tin.org>]
 1005 
 1006 o  add PGP_INCLUDE_KEY to pgp_mail_keys?
 1007    [20050426 Urs Janssen <urs@tin.org>]
 1008 
 1009 o  there is no command to undo a range ('#') selection
 1010 
 1011 o  'article loss' reported in
 1012    <nntp://news.tin.org/20020915165856.GA1541@martinkl.dialup.fu-berlin.de>
 1013 
 1014 o  should 'tin -z foo.bar' only start up if there is any unread news in
 1015    foo.bar?
 1016    [20040325 Urs Janssen <urs@tin.org>]
 1017 
 1018 o  trn and perls Net::NNTP::Auth use ~/.nntpauth (format is
 1019    "^server\s+user\s+password"), shall we also try ~/.nntpauth if we can't
 1020    find a matching entry in ~/.newsauth? and should we look for
 1021    ${TIN_HOMEDIR:-"$HOME"}/.tin/.newsauth if ~/.newsauth is not found?
 1022    [20040128 Urs Janssen <urs@tin.org>]
 1023 
 1024 o  allow a different port in newsauth- and/or newsrctable-file
 1025    (server:port [...])? if we do, what's the precedence?
 1026    [high] -p, newsauth, newsrctable, $NNTPORT, 119 [low]?
 1027    [20140504 Urs Janssen <urs@tin.org>]
 1028 
 1029 o  what todo if in a CTE: x-uue the CD: filename differs from the one given
 1030    in the begin line? IMHO we should use the one from the begin line for
 1031    saving and in the overview in the pager.
 1032    [urs@tin.org]
 1033 
 1034 o  inverse_okay's Menu description isn't accurate (inverse is also used for
 1035    URL highlighting). mono_mark* do allow "Reverse video" even if
 1036    inverse_okay=FALSE.
 1037 
 1038 o  --disable-inverse-video seems to be ignored - do we still need it?
 1039 
 1040 o  move tinrc.defaults for certain comannds to a pre-filled .inputhistory?
 1041    (if so, also move last_search there)
 1042    [Jason Faultless]
 1043 
 1044 o  what about -a cmd-line flag? is this really needed? IMHO this can be
 1045    dropped, '&' can be used for runtime color toggling.
 1046    [20021106 Urs Janssen <urs@tin.org>]
 1047 
 1048 o  commas in real-name might cause problems in mail-replies
 1049    'From: Last, First <user@example.com>' (which was illegal in RFC 1036 but
 1050    is no longer with RFC 5536) leads to 'To: Last, First<user@example.com>'
 1051    which is 'last@localhost,user@example.com' should we try to fix things and
 1052    quote the realname part?
 1053    [20021007 Urs Janssen <urs@tin.org>]
 1054 
 1055 o  setting TIN_HOMEDIR to a non-existent dir gives a "Filesystem full"
 1056    error-message (but doesn't force quit) instead of creating the dir. bug?
 1057    feature? if the later we should give a more exact error-message.
 1058    [20011112 Urs Janssen <urs@tin.org>]
 1059 
 1060 o  update gettext stuff to > gettext-0.12.1 (or drop it?)
 1061 
 1062 o  shows up cross-postings multiple times even if read once before getting
 1063    a resync/reread active/newsrc-file
 1064 
 1065 o  think about group numbering in "only unread" display mode
 1066    (using different numbers in show all/show only unread leads to some
 1067     problems, f.e. group moving)
 1068 
 1069 o  doesn't handle symlinks for .oldnewsrc
 1070    (see <20021003021508.GA28021@akk10.akk.uni-karlsruhe.de> for details, urs.
 1071     if we're going to 'fix' this we must be careful to avoid symlink
 1072     attacks (<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-1999-1091>)
 1073    [20020627 Jeff Sheinberg <jeffsh@erols.com>]
 1074 
 1075 o  missing newsrc file and connecting to a server without groups leads to the
 1076    question "Try and save newsrc file again? (Y/n)" but a newsrc file doesn't
 1077    get written. Same may occur on quitting if newsrc file had been removed
 1078    while tin was running. Useful? Should write_newsrc() try to create a newsrc
 1079    file if it is missing instead of just leaving?
 1080    [20061102 Dirk Nimmich <nimmich@muenster.de>]
 1081 
 1082 o  configure checks for fdopen(3) and defines HAVE_FDOPEN if found, but we
 1083    don't have any code guarded with that macro nor any fallback code if not
 1084    found.
 1085 
 1086 o  re add innlib support? (the old one was dropped as the lib has retired
 1087    all (which were not that many) features we used and our code didn't
 1088    use the innlibs code where ever it was possible (and useful).
 1089    [20080211 Urs Janssen <urs@tin.org>]
 1090 
 1091 o  add check for libarchive <http://www.libarchive.org/>
 1092    and use for post-processing?
 1093    [20111225 Urs Janssen <urs@tin.org>]
 1094 
 1095 o  add check for liblockfile and/or liblock and use if found?
 1096 
 1097 o  add check for heapsort(3) in libbsd? <http://libbsd.freedesktop.org/wiki/>
 1098    [20130305 Urs Janssen <urs@tin.org>]
 1099 
 1100 o  add check for libtre and offer TRE as matching method for "wildcard"?
 1101    <http://laurikari.net/tre/about/>, <https://github.com/laurikari/tre/>
 1102    [20130706 Urs Janssen <urs@tin.org>]
 1103 
 1104 o  eval $NEWSHOST if $NNTPSERVER is unset (like Net::NNTP(3perl))
 1105    [20141225 Urs Janssen <urs@tin.org>]