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1 ;;; gnus-start.el --- startup functions for Gnus
3 ;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
4 ;; 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
6 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
7 ;; Keywords: news
9 ;; This file is part of GNU Emacs.
11 ;; GNU Emacs is free software: you can redistribute it and/or modify
12 ;; it under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation, either version 3 of the License, or
14 ;; (at your option) any later version.
16 ;; GNU Emacs is distributed in the hope that it will be useful,
17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ;; GNU General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
24 ;;; Commentary:
26 ;;; Code:
47 "Your `.newsrc' file.
48 `.newsrc-SERVER' will be used instead if that exists."
53 "Control use of version numbers for backups of `gnus-startup-file'.
54 This variable takes the same values as the `version-control'
55 variable."
63 "Whether to write the startup file contents to a buffer then save
64 the buffer or write directly to the file. The buffer is faster
65 because all of the contents are written at once. The direct write
66 uses considerably less memory."
73 "Your Gnus Emacs-Lisp startup file name.
74 If a file with the `.el' or `.elc' suffixes exists, it will be read instead."
84 "The site-wide Gnus Emacs-Lisp startup file name, or nil if none.
85 If a file with the `.el' or `.elc' suffixes exists, it will be read instead."
90 "List of newsgroups to subscribe, when a user runs Gnus the first time.
91 The value should be a list of strings.
92 If it is t, Gnus will not do anything special the first time it is
93 started; it'll just use the normal newsgroups subscription methods."
98 "*Non-nil means that Gnus will use a dribble file to store user updates.
99 If Emacs should crash without saving the .newsrc files, complete
100 information can be restored from the dribble file."
105 "*The directory where dribble files will be saved.
106 If this variable is nil, the directory where the .newsrc files are
107 saved will be used."
112 "*Non-nil means that Gnus will run `gnus-find-new-newsgroups' at startup.
113 This normally finds new newsgroups by comparing the active groups the
114 servers have already reported with those Gnus already knows, either alive
115 or killed.
117 When any of the following are true, `gnus-find-new-newsgroups' will instead
118 ask the servers (primary, secondary, and archive servers) to list new
119 groups since the last time it checked:
120 1. This variable is `ask-server'.
121 2. This variable is a list of select methods (see below).
122 3. `gnus-read-active-file' is nil or `some'.
123 4. A prefix argument is given to `gnus-find-new-newsgroups' interactively.
125 Thus, if this variable is `ask-server' or a list of select methods or
126 `gnus-read-active-file' is nil or `some', then the killed list is no
127 longer necessary, so you could safely set `gnus-save-killed-list' to nil.
129 This variable can be a list of select methods which Gnus will query with
130 the `ask-server' method in addition to the primary, secondary, and archive
131 servers.
133 Eg.
134 (setq gnus-check-new-newsgroups
137 If this variable is nil, then you have to tell Gnus explicitly to
149 "*Non-nil means that Gnus will check and remove bogus newsgroup at startup.
150 If this variable is nil, then you have to tell Gnus explicitly to
156 "*Non-nil means that Gnus will read the entire active file at startup.
157 If this variable is nil, Gnus will only know about the groups in your
158 `.newsrc' file.
160 If this variable is `some', Gnus will try to only read the relevant
161 parts of the active file from the server. Not all servers support
162 this, and it might be quite slow with other servers, but this should
163 generally be faster than both the t and nil value.
165 If you set this variable to nil or `some', you probably still want to
166 be told about new newsgroups that arrive. To do that, set
167 `gnus-check-new-newsgroups' to `ask-server'. This may not work
168 properly with all servers."
178 "Groups with levels less than or equal to this variable are unsubscribed.
180 Groups with levels less than `gnus-level-subscribed', which
181 should be less than this variable, are subscribed. Groups with
182 levels from `gnus-level-subscribed' (exclusive) upto this
183 variable (inclusive) are unsubscribed. See also
184 `gnus-level-zombie', `gnus-level-killed' and the Info node `(gnus)Group
194 "*New subscribed groups will be subscribed at this level."
199 "*New unsubscribed groups will be unsubscribed at this level."
204 "*Groups higher than this level won't be activated on startup.
205 Setting this variable to something low might save lots of time when
206 you have many groups that you aren't interested in."
211 "*If nil, Gnus will not check foreign newsgroups at startup.
212 If it is non-nil, it should be a number between one and nine. Foreign
213 newsgroups that have a level lower or equal to this number will be
214 activated on startup. For instance, if you want to active all
215 subscribed newsgroups, but not the rest, you'd set this variable to
216 `gnus-level-subscribed'.
218 If you subscribe to lots of newsgroups from different servers, startup
219 might take a while. By setting this variable to nil, you'll save time,
220 but you won't be told how many unread articles there are in the
221 groups."
227 "*Non-nil means that Gnus will read the `.newsrc' file.
228 Gnus always reads its own startup file, which is called
230 be readily understood by other newsreaders. If you don't plan on
231 using other newsreaders, set this variable to nil to save some time on
232 entry."
238 "*Non-nil means that Gnus will save the `.newsrc' file.
239 Gnus always saves its own startup file, which is called
241 be readily understood by other newsreaders. If you don't plan on
242 using other newsreaders, set this variable to nil to save some time on
243 exit."
248 "*If non-nil, save the list of killed groups to the startup file.
249 If you set this variable to nil, you'll save both time (when starting
250 and quitting) and space (both memory and disk), but it will also mean
251 that Gnus has no record of which groups are new and which are old, so
252 the automatic new newsgroups subscription methods become meaningless.
254 You should always set `gnus-check-new-newsgroups' to `ask-server' or
255 nil if you set this variable to nil.
257 This variable can also be a regexp. In that case, all groups that do
258 not match this regexp will be removed before saving the list."
265 regexp))
272 )
274 "*A regexp to match uninteresting newsgroups in the active file.
275 Any lines in the active file matching this regular expression are
276 removed from the newsgroup list before anything else is done to it,
277 thus making them effectively non-existent."
282 "*Function(s) called with a group name when new group is detected.
283 A few pre-made functions are supplied: `gnus-subscribe-randomly'
284 inserts new groups at the beginning of the list of groups;
285 `gnus-subscribe-alphabetically' inserts new groups in strict
286 alphabetic order; `gnus-subscribe-hierarchically' inserts new groups
287 in hierarchical newsgroup order; `gnus-subscribe-interactively' asks
288 for your decision; `gnus-subscribe-killed' kills all new groups;
289 `gnus-subscribe-zombies' will make all new groups into zombies;
290 `gnus-subscribe-topics' will enter groups into the topics that
291 claim them."
300 function
304 "*Hooks run after you subscribe to a new group.
305 The hooks will be called with new group's name as argument."
311 'gnus-subscribe-alphabetically
313 If, for instance, you want to subscribe to all newsgroups in the
315 .newsrc file:
317 options -n no.all alt.all
319 Gnus will then subscribe all new newsgroups in these hierarchies
320 with the subscription method in this variable."
329 function
333 "*If non-nil, Gnus will offer to subscribe hierarchically.
334 When a new hierarchy appears, Gnus will ask the user:
336 'alt.binaries': Do you want to subscribe to this hierarchy? ([d]ys):
338 If the user pressed `d', Gnus will descend the hierarchy, `y' will
339 subscribe to all newsgroups in the hierarchy and `s' will skip this
340 hierarchy in its entirety."
345 "*New groups from methods of these categories will be subscribed automatically.
346 Note that this variable only deals with new groups. It has no
347 effect whatsoever on old groups. The default is to automatically
348 subscribe all groups from mail-like backends."
355 "*All new groups that match this regexp will be subscribed automatically.
356 Note that this variable only deals with new groups. It has no effect
357 whatsoever on old groups.
359 New groups that match this regexp will not be handled by
360 `gnus-subscribe-newsgroup-method'. Instead, they will
361 be subscribed using `gnus-subscribe-options-newsgroup-method'."
366 "*All new groups matching this regexp will be subscribed unconditionally.
367 Note that this variable deals only with new newsgroups. This variable
368 does not affect old newsgroups.
370 New groups that match this regexp will not be handled by
371 `gnus-subscribe-newsgroup-method'. Instead, they will
372 be subscribed using `gnus-subscribe-options-newsgroup-method'."
378 "*All new groups matching this regexp will be ignored.
379 Note that this variable deals only with new newsgroups. This variable
380 does not affect old (already subscribed) newsgroups."
386 "*Non-nil means .newsrc should be deleted prior to save.
387 Its use is due to the bogus appearance that .newsrc was modified on
388 disc."
393 "If non-nil, Gnus will store and retrieve marks from the backends.
394 This means that marks will be stored both in .newsrc.eld and in
395 the backend, and will slow operation down somewhat."
400 "A hook run after removing bogus groups."
405 "A hook called at startup.
406 This hook is called after Gnus is connected to the NNTP server."
411 "A hook called before startup.
412 This hook is called as the first thing when Gnus is started."
417 "A hook called as the last thing after startup."
422 "A hook after reading the .newsrc file, but before generating the buffer."
427 "A hook run just before Gnus checks for new news globally."
433 "A hook run just before Gnus checks for new news."
439 "*A hook run after Gnus checks for new news when Gnus is already running."
445 "A hook called after reading the newsrc.eld? file."
450 "A hook called before saving any of the newsrc files."
455 "A hook called just before saving the quick newsrc file.
456 Can be used to turn version control on or off."
461 "A hook called just before saving the standard newsrc file.
462 Can be used to turn version control on or off."
467 "Hook for Gnus group mode."
473 "Unconditionally read the dribble file."
477 ;;; Internal variables
479 ;; Fixme: deal with old emacs-mule when mm-universal-coding-system is
480 ;; utf-8-emacs.
499 ;; Byte-compiler warning.
502 ;; Suggested by Brian Edmonds <edmonds@cs.ubc.ca>.
505 ;; Don't load .gnus if the -q option was used.
520 ;; For subscribing new newsgroup
524 prefixes prefix start ans group starts real-group)
534 start)
596 "Subscribe new NEWSGROUP by making it the first newsgroup."
600 "Subscribe new NEWGROUP and insert it in alphabetical order."
602 before)
610 "Subscribe new NEWGROUP and insert it in hierarchical newsgroup order."
611 ;; Basic ideas by mike-w@cs.aukuni.ac.nz (Mike Williams)
623 ;; Remove tail of newsgroup name (eg. a.b.c -> a.b)
631 "Subscribe the new GROUP interactively.
632 It is inserted in hierarchical newsgroup order if subscribed. If not,
633 it is killed."
639 "Make the new GROUP into a zombie group."
643 "Make the new GROUP a killed group."
647 "Subscribe new NEWSGROUP.
648 If NEXT is non-nil, it is inserted before NEXT. Otherwise it is made
649 the first newsgroup."
652 ;; We subscribe the group by changing its level to `subscribed'.
654 newsgroup gnus-level-default-subscribed
658 t))
661 "Say whether the active file has been read from `gnus-select-method'."
664 ;;; General various misc type functions.
666 ;; Silence byte-compiler.
683 "Close all servers."
689 "Clear all variables and buffers."
690 ;; Clear Gnus variables.
695 ;; Clear other internal variables.
697 gnus-have-read-active-file nil
698 gnus-agent-covered-methods nil
699 gnus-agent-file-loading-local nil
700 gnus-agent-file-loading-cache nil
701 gnus-server-method-cache nil
702 gnus-newsrc-alist nil
703 gnus-newsrc-hashtb nil
704 gnus-killed-list nil
705 gnus-zombie-list nil
706 gnus-killed-hashtb nil
707 gnus-active-hashtb nil
708 gnus-moderated-hashtb nil
709 gnus-description-hashtb nil
710 gnus-current-headers nil
711 gnus-thread-indent-array nil
712 gnus-newsgroup-headers nil
713 gnus-newsgroup-name nil
714 gnus-server-alist nil
715 gnus-group-list-mode nil
716 gnus-opened-servers nil
717 gnus-group-mark-positions nil
718 gnus-newsgroup-data nil
719 gnus-newsgroup-unreads nil
720 nnoo-state-alist nil
721 gnus-current-select-method nil
722 nnmail-split-history nil
723 gnus-extended-servers nil
724 gnus-ephemeral-servers nil)
726 ;; Kill the startup file.
730 ;; Clear the dribble buffer.
732 ;; Kill global KILL file buffer.
736 ;; Kill Gnus buffers.
739 ;; Remove Gnus frames.
743 "Read network news.
744 If ARG is a positive number, Gnus will use that as the startup
745 level. If ARG is nil, Gnus will be started at level 2
746 \(`gnus-level-default-subscribed' minus one). If ARG is non-nil
747 and not a positive number, Gnus will prompt the user for the name
749 will not connect to the local server."
757 "Read network news.
758 If ARG is non-nil and a positive number, Gnus will use that as the
759 startup level. If ARG is non-nil and not a positive number, Gnus will
760 prompt the user for the name of an NNTP server to use."
778 ;; Add "native" to gnus-predefined-server-alist just to have a
779 ;; name for the native select method.
782 gnus-predefined-server-alist))
788 did-connect)
798 ;; NNTP server is successfully open.
800 ;; Find the current startup file name.
804 ;; Read the dribble file.
808 ;; Do the actual startup.
815 ;; Generate the group buffer.
823 "Make sure the draft group exists."
835 \f
836 ;;;
837 ;;; Dribble file
838 ;;;
844 "Return the dribble file for the current .newsrc."
849 gnus-current-startup-file)
853 "Enter STRING into the dribble buffer."
855 gnus-dribble-buffer
861 ;; This has been commented by Josh Huber <huber@alum.wpi.edu>
862 ;; It causes problems with both XEmacs and Emacs 21, and doesn't
863 ;; seem to be of much value. (FIXME: remove this after we make sure
864 ;; it's not needed).
865 ;; (set-window-point (get-buffer-window (current-buffer)) (point-max))
872 "Touch the dribble buffer."
876 "Read the dribble file from disk."
893 modes)
895 ;; Load whichever file is newest -- the auto save file
896 ;; or the "real" file.
902 ;; Set the file modes to reflect the .newsrc file modes.
911 ;; Possibly eval the file later.
915 "Gnus exited on purpose without saving; read auto-save file anyway? "
951 \f
952 ;;;
953 ;;; Active & Newsrc File Handling
954 ;;;
957 "Setup news information.
958 If RAWFILE is non-nil, the .newsrc file will also be read.
959 If LEVEL is non-nil, the news will be set up at level LEVEL."
962 ;; Binding this variable will inhibit multiple fetchings
963 ;; of the same mail source.
967 ;; Clear some variables to re-initialize news information.
969 gnus-active-hashtb nil)
970 ;; Read the newsrc file and create `gnus-newsrc-hashtb'.
973 ;; Make sure the archive server is available to all and sundry.
976 gnus-message-archive-method))
977 gnus-message-archive-method)))
978 ;; Check whether the archive method is writable.
982 gnus-valid-select-methods)))
986 ,method
999 gnus-server-alist))))
1003 ;; If we don't read the complete active file, we fill in the
1004 ;; hashtb here.
1009 ;; Validate agent covered methods now that gnus-server-alist has
1010 ;; been initialized.
1011 ;; NOTE: This is here for one purpose only. By validating the
1012 ;; agentized server's, it converts the old 5.10.3, and earlier,
1013 ;; format to the current format. That enables the agent code
1014 ;; within gnus-read-active-file to function correctly.
1018 ;; Read the active file and create `gnus-active-hashtb'.
1019 ;; If `gnus-read-active-file' is nil, then we just create an empty
1020 ;; hash table. The partial filling out of the hash table will be
1021 ;; done in `gnus-get-unread-articles'.
1029 ;; Initialize the cache.
1033 ;; Possibly eval the dribble file.
1038 ;; Slave Gnusii should then clear the dribble buffer.
1044 ;; See whether we need to read the description file.
1051 gnus-read-active-file)
1054 ;; Find new newsgroups and treat them.
1058 gnus-plugged)
1061 ;; Check and remove bogus newsgroups.
1067 ;; Read any slave files.
1070 ;; Find the number of unread articles in each non-dead group.
1075 "Call METHOD to subscribe GROUP.
1076 If no function returns `non-nil', call `gnus-subscribe-zombies'."
1085 nil))
1090 "Search for new newsgroups and add them.
1091 Each new newsgroup will be treated with `gnus-subscribe-newsgroup-method'.
1092 The `-n' option line from .newsrc is respected.
1094 With 1 C-u, use the `ask-server' method to query the server for new
1095 groups.
1096 With 2 C-u's, use most complete method possible to query the server
1097 for new groups, and subscribe the new groups as zombies."
1100 gnus-subscribe-newsgroup-method)
1110 t)
1114 ;; Ask the server for new groups.
1116 ;; Go through the active hashtb and look for new groups.
1118 group new-newsgroups)
1125 ;; Go though every newsgroup in `gnus-active-hashtb' and compare
1126 ;; with `gnus-newsrc-hashtb' and `gnus-killed-hashtb'.
1134 ()
1141 gnus-subscribe-options-newsgroup-method group))
1143 nil)
1150 gnus-subscribe-newsgroup-method group)))))))
1151 gnus-active-hashtb)
1158 groups))))
1161 ;; Returns `subscribe' if the group is to be unconditionally
1162 ;; subscribed, `ignore' if it is to be ignored, and nil if there is
1163 ;; no match for the group.
1165 ;; First we check the two user variables.
1181 ;; Then we go through the list that was retrieved from the .newsrc
1182 ;; file. This list has elements on the form
1183 ;; `(REGEXP . {ignore,subscribe})'. The first match found (the list
1184 ;; is in the reverse order of the options line) is returned.
1201 gnus-check-new-newsgroups)
1202 gnus-secondary-select-methods))))
1204 group new-newsgroups got-new method hashtb
1205 gnus-override-subscribe-method)
1208 ;; Go through both primary and secondary select methods and
1209 ;; request new newsgroups.
1212 gnus-override-subscribe-method method)
1219 ;; Enter all the new groups into a hashtable.
1221 ;; Now all new groups from `method' are in `hashtb'.
1230 ;; The group is already known.
1231 ()
1232 ;; Make this group active.
1235 ;; Check whether we want it or not.
1242 gnus-subscribe-options-newsgroup-method group))
1244 nil)
1251 gnus-subscribe-newsgroup-method group)))))))
1252 hashtb))
1261 new-newsgroups))
1264 "Subscribe GROUP and put it after PREVIOUS."
1268 group)
1269 gnus-level-default-subscribed gnus-level-killed previous t)
1270 t)
1272 ;; `gnus-group-change-level' is the fundamental function for changing
1273 ;; subscription levels of newsgroups. This might mean just changing
1274 ;; from level 1 to 2, which is pretty trivial, from 2 to 6 or back
1275 ;; again, which subscribes/unsubscribes a group, which is equally
1276 ;; trivial. Changing from 1-7 to 8-9 means that you kill a group, and
1277 ;; from 8-9 to 1-7 means that you remove the group from the list of
1278 ;; killed (or zombie) groups and add them to the (kinda) subscribed
1279 ;; groups. And last but not least, moving from 8 to 9 and 9 to 8,
1280 ;; which is trivial.
1281 ;; ENTRY can either be a string (newsgroup name) or a list (if
1282 ;; FROMKILLED is t, it's a list on the format (NUM INFO-LIST),
1283 ;; otherwise it's a list in the format of the `gnus-newsrc-hashtb'
1284 ;; entries.
1285 ;; LEVEL is the new level of the group, OLDLEVEL is the old level and
1286 ;; PREVIOUS is the group (in hashtb entry format) to insert this group
1287 ;; after.
1289 previous fromkilled)
1291 ;; Glean what info we can from the arguments
1297 oldlevel
1309 ;; We are trying to subscribe a group that is already
1310 ;; subscribed.
1318 ;; Then we remove the newgroup from any old structures, if needed.
1319 ;; If the group was killed, we remove it from the killed or zombie
1320 ;; list. If not, and it is in fact going to be killed, we remove
1321 ;; it from the newsrc hash table and assoc.
1324 ;; oldlevel could be wrong.
1329 entry)
1336 ;; Finally we enter (if needed) the list where it is supposed to
1337 ;; go, and change the subscription level. If it is to be killed,
1338 ;; we enter it into the killed or zombie list.
1341 ;; Remove from the hash table.
1343 ;; We do not enter foreign groups into the list of dead
1344 ;; groups.
1349 ;; Remove from active hashtb.
1351 ;; Don't add it into killed-list if it was killed.
1354 ;; If the list is to be entered into the newsrc assoc, and
1355 ;; it was killed, we have to create an entry in the newsrc
1356 ;; hashtb format and fix the pointers in the newsrc assoc.
1358 ;; It was alive, and it is going to stay alive, so we
1359 ;; just change the level and don't change any pointers or
1360 ;; hash table entries.
1368 ;; Shorten the select method if possible, if we need to
1369 ;; store it at all (native groups).
1381 p)))
1387 gnus-newsrc-hashtb))
1390 gnus-newsrc-hashtb))
1398 group level oldlevel previous)))))
1401 "Obsolete function. Kills a newsgroup."
1406 "Remove bogus newsgroups.
1407 If CONFIRM is non-nil, the user has to confirm the deletion of every
1408 newsgroup."
1410 bogus group entry info)
1415 ;; Find all bogus newsgroup that are subscribed.
1423 ;; Found a bogus newsgroup.
1429 ;; Remove all bogus subscribed groups by first killing them, and
1430 ;; then removing them from the list of killed groups.
1436 ;; Remove all bogus subscribed groups by first killing them, and
1437 ;; then removing them from the list of killed groups.
1441 ;; Then we remove all bogus groups from the list of killed and
1442 ;; zombie groups. They are removed without confirmation.
1444 killed)
1449 ;; The group is bogus.
1450 ;; !!!Slow as hell.
1458 "Remove duplicates from the list of killed groups."
1466 ;; We want to inline a function from gnus-cache, so we cheat here:
1470 "Alter the ACTIVE info for GROUP to reflect the articles in the cache."
1480 dont-sub-check)
1481 "Check whether a group has been activated or not.
1482 If SCAN, request a scan of that group as well."
1484 active)
1486 ;; We escape all bugs and quit here to make it possible to
1487 ;; continue if a group is so out-there that it reports bugs
1488 ;; and stuff.
1493 t)
1496 method
1500 method
1502 ;;(error nil)
1505 nil)))
1508 ;; If there are no articles in the group, the GROUP
1509 ;; command may have responded with the `(0 . 0)'. We
1510 ;; ignore this if we already have an active entry
1511 ;; for the group.
1517 ;; If a cache is present, we may have to alter the active info.
1520 group active)))
1522 ;; If the agent is enabled, we may have to alter the active info.
1527 ;; Return the new active info.
1528 active)))))
1532 ;; Allow the backend to update the info in the group.
1539 ;; Allow backends to update marks,
1549 ;; These checks are present in gnus-activate-group but skipped
1550 ;; due to setting dont-check in the preceeding call.
1552 ;; If a cache is present, we may have to alter the active info.
1557 ;; If the agent is enabled, we may have to alter the active info.
1561 ;; Modify the list of read articles according to what articles
1562 ;; are available; then tally the unread articles and add the
1563 ;; number to the group hash table entry.
1570 ;; Fix a single (num . num) range according to the
1571 ;; active hash table.
1572 ;; Fix by Carsten Bormann <cabo@Informatik.Uni-Bremen.DE>.
1575 ;; Compute number of unread articles.
1578 ;; The read list is a list of ranges. Fix them according to
1579 ;; the active hash table.
1580 ;; First peel off any elements that are below the lower
1581 ;; active limit.
1596 ;; Adjust the first element to be the same as the lower limit.
1600 ;; Then we want to peel off any elements that are higher
1601 ;; than the upper active limit.
1603 ;; Go past all valid elements.
1611 ;; Nuke all remaining invalid elements.
1614 ;; Adjust the final element.
1618 ;; Compute the number of unread articles.
1626 ;; Set the number of unread articles.
1630 num)))
1632 ;; Go though `gnus-newsrc-alist' and compare with `gnus-active-hashtb'
1633 ;; and compute how many unread articles there are in each group.
1641 level
1647 gnus-activate-foreign-newsgroups)
1649 alevel)))
1654 infos info group active method cmethod
1655 method-type method-group-list entry)
1661 ;; First go through all the groups, see what select methods they
1662 ;; belong to, and then collect them into lists per unique select
1663 ;; method.
1666 ;; There may be several similar methods. Possibly extend the
1667 ;; method.
1689 type-cache))
1690 ;; Only add groups that need updating.
1693 foreign-level
1694 alevel))
1697 ;; The group is inactive, so we nix out the number of unread articles.
1698 ;; It leads `(gnus-group-unread group)' to return t. See also
1699 ;; `gnus-group-prepare-flat'.
1704 ;; Sort the methods based so that the primary and secondary
1705 ;; methods come first. This is done for legacy reasons to try to
1706 ;; ensure that side-effect behaviour doesn't change from previous
1707 ;; Gnus versions.
1714 ;; Start early async retrieval of data.
1719 ;; If the open-server method doesn't exist, then the method
1720 ;; itself doesn't exist, so we ignore it.
1734 ;; Do the rest of the retrieval.
1740 ;; See if any of the groups from this method require updating.
1745 updatep)))))))
1750 ;; Get info for virtual groups last.
1755 ;; Compute the rank of the secondary methods based on where they
1756 ;; are in the secondary select list.
1764 i)))
1765 ;; Just say that all foreign groups have the same rank.
1785 method)))
1792 ;; Create a hash table out of the newsrc alist. The `car's of the
1793 ;; alist elements are used as keys.
1797 prev info method rest methods)
1803 gnus-newsrc-alist
1807 ;; Make the same select-methods identical Lisp objects.
1812 ;; Check for duplicates.
1814 ;; Remove this entry from the alist.
1818 ;; Preserve number of unread articles in groups.
1820 prev)
1821 gnus-newsrc-hashtb)
1824 ;; Make the same select-methods in `gnus-server-alist' identical
1825 ;; as well.
1832 "Create a hash table from the killed and zombie lists."
1834 list)
1844 "Parse active info in the nntp server buffer."
1847 ;; Parse the result we got from `gnus-request-group'.
1854 "Mark ARTICLES in GROUP as unread."
1859 news article)
1865 ;; Enter this list into the group info.
1869 ;; Set the number of unread articles in gnus-newsrc-hashtb.
1872 ;; Insert the change into the group buffer and the dribble file.
1876 "Mark ascending ARTICLES in GROUP as unread."
1882 modified)
1889 ;; the articles extend past the end of the ranges
1890 ;; OK - I'm done
1893 ;; this range preceeds the article. Leave the range unmodified.
1895 ranges)
1897 ;; this range exactly matches the article; REMOVE THE RANGE.
1898 ;; NOTE: When the range being removed is the last range, the list is corrupted by inserting null at its end.
1902 nil))
1905 ;; I have a min/max range to consider
1910 ranges)
1912 ;; replace min/max range with a single-value range
1914 ranges)
1916 ;; this range preceeds the article. Leave the range unmodified.
1918 ranges)
1920 ;; this article preceeds the range. Return null to move to the
1921 ;; next article
1922 nil)
1924 ;; this article splits the range into two parts
1928 ranges))))))))
1933 ;; Enter this list into the group info.
1936 ;; Set the number of unread articles in gnus-newsrc-hashtb.
1939 ;; Insert the change into the group buffer and the dribble file.
1942 ;; Enter all dead groups into the hashtb.
1946 killed)
1955 "Go through the active hashtb and mark all unknown groups as killed."
1956 ;; First make sure active file has been read.
1962 ;; Go through all newsgroups that are known to Gnus - enlarge kill list.
1970 ()
1973 ()
1977 gnus-active-hashtb)
1980 ;; Get the active file(s) from the backend(s).
1989 ;; The native server is available.
1991 ;; The native server is down, so we just do the
1992 ;; secondary ones.
1993 gnus-secondary-select-methods)
1994 ;; Also read from the archive server.
1997 method)
2001 ;; Only do each method once, in case the methods appear more
2002 ;; than once in this list.
2004 ;; Check whether the backend exists.
2010 ;; We catch C-g so that we can continue past servers
2011 ;; that do not respond.
2014 nil))))))))
2025 ;; Request that the backend scan its incoming messages.
2037 groups info)
2044 gmethod))
2046 groups)))
2049 t)
2057 ;; We mark this active file as read.
2062 "Read an active file for GROUPS in METHOD using `gnus-retrieve-groups'."
2076 ;; Read an active file and place the results in `gnus-active-hashtb'.
2078 real-active)
2085 gnus-active-hashtb
2091 group max min)
2092 ;; Delete unnecessary lines.
2102 ;; Make the group names readable as a lisp expression even if they
2103 ;; contain special characters.
2108 ;; Let the Gnus agent save the active file.
2112 ;; If these are groups from a foreign select method, we insert the
2113 ;; group prefix in front of the group names.
2125 ;; Store the active file in a hash table.
2126 ;; Use a unibyte buffer in order to make `read' read non-ASCII
2127 ;; group names (which have been encoded) as unibyte strings.
2136 ;; group gets set to a symbol interned in the hash table
2137 ;; (what a hack!!) - jwz
2139 ;; ### The extended group name scheme makes
2140 ;; the previous optimization strategy sort of pointless...
2153 ;; if group is moderated, stick in moderation table
2158 gnus-moderated-hashtb)))
2172 ;; Parse a "groups" active file.
2176 gnus-active-hashtb
2186 ;; Let the Gnus agent save the active file.
2188 real-active
2196 ;; We split this into to separate loops, one with the prefix
2197 ;; and one without to speed the reading up somewhat.
2227 "Read startup file.
2228 If FORCE is non-nil, the .newsrc file is read."
2229 ;; Reset variables that might be defined in the .newsrc.eld file.
2237 ;; We always load the .newsrc.eld file. If always contains
2238 ;; much information that can not be gotten from the .newsrc
2239 ;; file (ticked articles, killed groups, foreign methods, etc.)
2249 ;; We read the .newsrc file. Note that if there if a
2250 ;; .newsrc.eld file exists, it has already been read, and
2251 ;; the `gnus-newsrc-hashtb' has been created. While reading
2252 ;; the .newsrc file, Gnus will only use the information it
2253 ;; can find there for changing the data already read -
2254 ;; i. e., reading the .newsrc file will not trash the data
2255 ;; already read (except for read articles).
2264 ;; Convert old to new.
2268 "Convert old newsrc formats into the current format, if needed."
2273 ;; A newsrc file was loaded.
2279 date-func))
2280 ;; This is a list of converters that must be run
2281 ;; to bring the newsrc file up to the current
2282 ;; version. If you create an incompatibility
2283 ;; with older versions, you should create an
2284 ;; entry here. The entry should consist of the
2285 ;; current gnus version (hardcoded so that it
2286 ;; doesn't change with each release) and the
2287 ;; function that must be applied to convert the
2288 ;; previous version into the current version.
2290 gnus-convert-old-ticks)
2292 gnus-agent-convert-to-compressed-agentview)
2294 gnus-agent-unlist-expire-days)
2296 gnus-agent-unhook-expire-days)))
2298 ;; Skip converters older than the file version
2302 ;; Perform converters to bring older version up to date.
2319 gnus-newsrc-file-version gnus-version)
2326 nil)
2331 t)
2335 t)))))
2340 gnus-newsrc-file-version gnus-version)))))))
2343 "Indicate whether CONVERTER requires gnus-convert-old-newsrc to
2344 display the conversion prompt. NO-PROMPT may be nil (prompt),
2345 t (no prompt), or any form that can be called as a function.
2346 The form should return either t or nil."
2352 no-prompt
2357 marks info dormant ticked)
2364 info
2371 "Load FILE, but in such a way that read errors can be reported."
2389 ;; We always, always read the .eld file.
2393 ;; Older versions of `gnus-format-specs' are no longer valid
2394 ;; in Oort Gnus 0.01.
2407 ;; Old format quick file
2409 ;; The .el file is newer than the .eld file, so we read that one
2410 ;; as well.
2414 ;; Parse the old-style quick startup file
2419 gnus-marked-assoc gnus-newsrc-alist gnus-newsrc-assoc)
2424 killed gnus-killed-assoc
2425 marked gnus-marked-assoc)))
2433 gnus-level-default-unsubscribed))
2438 gnus-level-default-unsubscribed)
2440 gnus-newsrc-alist))
2441 ;; Copy marks into info.
2453 ;; The .el file version of this variable does not begin with
2454 ;; "options", while the .eld version does, so we just add it if it
2455 ;; isn't there.
2457 gnus-newsrc-options
2462 ;; Finally, if we read some options lines, we parse them.
2470 "Make server dependent file name by catenating FILE and server host name."
2476 real-file
2477 file)))
2487 group subscribed options-symbol newsrc Options-symbol
2488 symbol reads num1)
2490 ;; We intern the symbol `options' in the active hashtb so that we
2491 ;; can `eq' against it later.
2496 ;; We first read the first word on the line by narrowing and
2497 ;; then reading into `gnus-active-hashtb'. Most groups will
2498 ;; already exist in that hashtb, so this will save some string
2499 ;; space.
2508 ;; Now, the symbol we have read is either `options' or a group
2509 ;; name. If it is an options line, we just add it to a string.
2514 ;; This concating is quite inefficient, but since our
2515 ;; thorough studies show that approx 99.37% of all
2516 ;; .newsrc files only contain a single options line, we
2517 ;; don't give a damn, frankly, my dear.
2521 ;; Options may continue on the next line.
2527 ;; Group names can be just numbers.
2532 ;; It was a group name.
2535 reads nil)
2537 ;; If the line ends here, this is clearly a buggy line, so
2538 ;; we put point a the beginning of line and let the cond
2539 ;; below do the error handling.
2541 ;; We skip to the beginning of the ranges.
2543 ;; We are now at the beginning of the list of read articles.
2544 ;; We read them range by range.
2548 ;; We narrow and read a number instead of buffer-substring/
2549 ;; string-to-number because it's faster. narrow/widen is
2550 ;; faster than save-restriction/narrow, and save-restriction
2551 ;; produces a garbage object.
2556 ;; If the next character is a dash, then this is a range.
2559 ;; We read the upper bound of the range.
2562 ;; This is a buggy line, by we pretend that
2563 ;; it's kinda OK. Perhaps the user should be
2564 ;; dinged?
2572 reads)
2574 ;; It was just a simple number, so we add it to the
2575 ;; list of ranges.
2577 ;; If the next char in ?\n, then we have reached the end
2578 ;; of the line and return nil.
2581 ;; End of line, so we end.
2582 nil)
2584 ;; Not numbers and not eol, so this might be a buggy
2585 ;; line...
2587 ;; If it was eob instead of ?\n, we allow it.
2588 ;; The line was buggy.
2593 nil))
2594 ;; Skip past ", ". Spaces are invalid in these ranges, but
2595 ;; we allow them, because it's a common mistake to put a
2596 ;; space after the comma.
2599 ;; We have already read .newsrc.eld, so we gently update the
2600 ;; data in the hash table with the information we have just
2601 ;; read.
2604 level)
2606 ;; There is an entry for this file in the alist.
2609 ;; We update the level very gently. In fact, we
2610 ;; only change it if there's been a status change
2611 ;; from subscribed to unsubscribed, or vice versa.
2616 gnus-level-default-unsubscribed
2621 ;; This is a new group.
2624 gnus-level-default-subscribed
2627 gnus-level-default-unsubscribed))
2635 ()
2636 ;; We now have two newsrc lists - `newsrc', which is what we
2637 ;; have read from .newsrc, and `gnus-newsrc-alist', which is
2638 ;; what we've read from .newsrc.eld. We have to merge these
2639 ;; lists. We do this by "attaching" any (foreign) groups in the
2640 ;; gnus-newsrc-alist to the (native) group that precedes them.
2643 entry mentry)
2655 ;; We make the newsrc hashtb.
2658 ;; Finally, if we read some options lines, we parse them.
2662 ;; Parse options lines to find "options -n !all rec.all" and stuff.
2663 ;; The return value will be a list on the form
2664 ;; ((regexp1 . ignore)
2665 ;; (regexp2 . subscribe)...)
2666 ;; When handling new newsgroups, groups that match a `ignore' regexp
2667 ;; will be ignored, and groups that match a `subscribe' regexp will be
2668 ;; subscribed. A line like
2669 ;; options -n !all rec.all
2670 ;; will lead to a list that looks like
2671 ;; (("^rec\\..+" . subscribe)
2672 ;; ("^.+" . ignore))
2673 ;; So all "rec.*" groups will be subscribed, while all the other
2674 ;; groups will be ignored. Note that "options -n !all rec.all" is very
2675 ;; different from "options -n rec.all !all".
2681 ;; First we treat all continuation lines.
2685 ;; Then we transform all "all"s into ".+"s.
2690 ;; We remove all other options than the "-n" ones.
2696 ;; We are only interested in "options -n" lines - we
2697 ;; ignore the other option lines.
2704 ;; Search for all "words"...
2707 ;; If the word begins with a bang (!), this is a "not"
2708 ;; spec. We put this spec (minus the bang) and the
2709 ;; symbol `ignore' into the list.
2716 out)
2717 ;; There was no bang, so this is a "yes" spec.
2720 out))))
2727 'msdos-long-file-names
2731 "Save .newsrc file."
2732 ;; Note: We cannot save .newsrc file if all newsgroups are removed
2733 ;; from the variable gnus-newsrc-alist.
2735 gnus-current-startup-file)
2736 ;; Save agent range limits for the currently active method.
2751 ;; Save .newsrc.
2757 ;; Save .newsrc.eld.
2778 working-file
2780 ;; Generate the name of a non-existent file.
2796 ;; These bindings will mislead the current buffer
2797 ;; into thinking that it is visiting the startup
2798 ;; file.
2803 ;; Backup the current version of the startup file.
2806 ;; Replace the existing startup file with the temp file.
2820 "Print Gnus variables such as `gnus-newsrc-alist' in Lisp format."
2822 gnus-ding-file-coding-system))
2829 ;; Never delete this file -- if you want to force Gnus to read the
2847 gnus-killed-list))
2851 ;; Remove the `gnus-killed-list' from the list of variables
2852 ;; to be saved, if required.
2854 ;; Peel off the "dummy" group.
2856 variable)
2857 ;; Insert the variables into the file.
2868 "Return the killed list minus the groups that match `gnus-save-killed-list'."
2870 olist)
2878 ;; Generate and save the .newsrc file.
2882 info ranges range method)
2887 ;; Use a unibyte buffer since group names are unibyte strings;
2888 ;; in particular, non-ASCII group names are the ones encoded by
2889 ;; a certain coding system.
2891 ;; Write options.
2894 ;; Write subscribed and unsubscribed.
2896 ;; Don't write foreign groups to .newsrc.
2922 ;; It has been reported that sometime the modtime on the .newsrc
2923 ;; file seems to be off. We really do want to overwrite it, so
2924 ;; we clear the modtime here before saving. It's a bit odd,
2925 ;; though...
2926 ;; sometimes the modtime clear isn't sufficient. most brute force:
2927 ;; delete the silly thing entirely first. but this fails to provide
2928 ;; such niceties as .newsrc~ creation.
2937 \f
2938 ;;;
2939 ;;; Slave functions.
2940 ;;;
2945 "Minor mode for slave Gnusae."
2946 ;; FIXME: gnus-slave-mode appears to never be set (i.e. it'll always be nil):
2947 ;; Remove, or fix and use define-minor-mode.
2971 t))
2972 file)
2980 slave-files)
2991 t)
2994 nil))
3002 \f
3003 ;;;
3004 ;;; Group description.
3005 ;;;
3012 gnus-secondary-select-methods))))
3016 t))
3020 group)
3023 ;; We create the hashtable whether we manage to read the desc file
3024 ;; to avoid trying to re-read after a failed read.
3028 ;; Mark this method's desc file as read.
3030 gnus-description-hashtb)
3035 t)
3038 nil)
3041 nil)
3044 ;; FIXME: Shouldn't save-restriction be done after set-buffer?
3052 ;; If these are groups from a foreign select method, we insert the
3053 ;; group prefix in front of the group names.
3058 nil gnus-select-method))))
3066 ;; If we get an error, we set group to 0, which is not a
3067 ;; symbol...
3071 ;; Group is set to a symbol interned in this
3072 ;; hash table.
3076 ;; ... which leads to this line being effectively ignored.
3084 gnus-default-charset)))
3085 ;; Fixme: Don't decode in unibyte mode.
3091 t))))
3094 "Get the description of a group by sending XGTITLE to the server."
3101 ;;;###autoload
3103 "Declare back end NAME with ABILITIES as a Gnus back end."
3110 "Set the default directory in the current buffer to `gnus-default-directory'.
3111 If this variable is nil, don't do anything."
3116 default-directory)))
3124 ;; Check whether nnml and nnfolder share a directory.
3127 'display-warning
3139 window
3144 method active actives match)
3161 ;;; gnus-start.el ends here