| blob | 719d0c9e472ee925b3f586ce22a384c71b19db52 |
1 ;;; gnus-start.el --- startup functions for Gnus
3 ;; Copyright (C) 1996-2011 Free Software Foundation, Inc.
5 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
6 ;; Keywords: news
8 ;; This file is part of GNU Emacs.
10 ;; GNU Emacs is free software: you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation, either version 3 of the License, or
13 ;; (at your option) any later version.
15 ;; GNU Emacs is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
23 ;;; Commentary:
25 ;;; Code:
46 "Your `.newsrc' file.
47 `.newsrc-SERVER' will be used instead if that exists."
52 "Control use of version numbers for backups of `gnus-startup-file'.
53 This variable takes the same values as the `version-control'
54 variable."
62 "Whether to write the startup file contents to a buffer then save
63 the buffer or write directly to the file. The buffer is faster
64 because all of the contents are written at once. The direct write
65 uses considerably less memory."
72 "Your Gnus Emacs-Lisp startup file name.
73 If a file with the `.el' or `.elc' suffixes exists, it will be read instead."
83 "The site-wide Gnus Emacs-Lisp startup file name, or nil if none.
84 If a file with the `.el' or `.elc' suffixes exists, it will be read instead."
89 "*Non-nil means that Gnus will use a dribble file to store user updates.
90 If Emacs should crash without saving the .newsrc files, complete
91 information can be restored from the dribble file."
96 "*The directory where dribble files will be saved.
97 If this variable is nil, the directory where the .newsrc files are
98 saved will be used."
103 "*Non-nil means that Gnus will run `gnus-find-new-newsgroups' at startup.
104 This normally finds new newsgroups by comparing the active groups the
105 servers have already reported with those Gnus already knows, either alive
106 or killed.
108 When any of the following are true, `gnus-find-new-newsgroups' will instead
109 ask the servers (primary, secondary, and archive servers) to list new
110 groups since the last time it checked:
111 1. This variable is `ask-server'.
112 2. This variable is a list of select methods (see below).
113 3. `gnus-read-active-file' is nil or `some'.
114 4. A prefix argument is given to `gnus-find-new-newsgroups' interactively.
116 Thus, if this variable is `ask-server' or a list of select methods or
117 `gnus-read-active-file' is nil or `some', then the killed list is no
118 longer necessary, so you could safely set `gnus-save-killed-list' to nil.
120 This variable can be a list of select methods which Gnus will query with
121 the `ask-server' method in addition to the primary, secondary, and archive
122 servers.
124 Eg.
125 (setq gnus-check-new-newsgroups
128 If this variable is nil, then you have to tell Gnus explicitly to
140 "*Non-nil means that Gnus will check and remove bogus newsgroup at startup.
141 If this variable is nil, then you have to tell Gnus explicitly to
147 "*Non-nil means that Gnus will read the entire active file at startup.
148 If this variable is nil, Gnus will only know about the groups in your
149 `.newsrc' file.
151 If this variable is `some', Gnus will try to only read the relevant
152 parts of the active file from the server. Not all servers support
153 this, and it might be quite slow with other servers, but this should
154 generally be faster than both the t and nil value.
156 If you set this variable to nil or `some', you probably still want to
157 be told about new newsgroups that arrive. To do that, set
158 `gnus-check-new-newsgroups' to `ask-server'. This may not work
159 properly with all servers."
169 "Groups with levels less than or equal to this variable are unsubscribed.
171 Groups with levels less than `gnus-level-subscribed', which
172 should be less than this variable, are subscribed. Groups with
173 levels from `gnus-level-subscribed' (exclusive) upto this
174 variable (inclusive) are unsubscribed. See also
175 `gnus-level-zombie', `gnus-level-killed' and the Info node `(gnus)Group
185 "*New subscribed groups will be subscribed at this level."
190 "*New unsubscribed groups will be unsubscribed at this level."
195 "*Groups higher than this level won't be activated on startup.
196 Setting this variable to something low might save lots of time when
197 you have many groups that you aren't interested in."
202 "*If nil, Gnus will not check foreign newsgroups at startup.
203 If it is non-nil, it should be a number between one and nine. Foreign
204 newsgroups that have a level lower or equal to this number will be
205 activated on startup. For instance, if you want to active all
206 subscribed newsgroups, but not the rest, you'd set this variable to
207 `gnus-level-subscribed'.
209 If you subscribe to lots of newsgroups from different servers, startup
210 might take a while. By setting this variable to nil, you'll save time,
211 but you won't be told how many unread articles there are in the
212 groups."
218 "*Non-nil means that Gnus will read the `.newsrc' file.
219 Gnus always reads its own startup file, which is called
221 be readily understood by other newsreaders. If you don't plan on
222 using other newsreaders, set this variable to nil to save some time on
223 entry."
229 "*Non-nil means that Gnus will save the `.newsrc' file.
230 Gnus always saves its own startup file, which is called
232 be readily understood by other newsreaders. If you don't plan on
233 using other newsreaders, set this variable to nil to save some time on
234 exit."
239 "*If non-nil, save the list of killed groups to the startup file.
240 If you set this variable to nil, you'll save both time (when starting
241 and quitting) and space (both memory and disk), but it will also mean
242 that Gnus has no record of which groups are new and which are old, so
243 the automatic new newsgroups subscription methods become meaningless.
245 You should always set `gnus-check-new-newsgroups' to `ask-server' or
246 nil if you set this variable to nil.
248 This variable can also be a regexp. In that case, all groups that do
249 not match this regexp will be removed before saving the list."
256 regexp))
263 )
265 "*A regexp to match uninteresting newsgroups in the active file.
266 Any lines in the active file matching this regular expression are
267 removed from the newsgroup list before anything else is done to it,
268 thus making them effectively non-existent."
273 "*Function(s) called with a group name when new group is detected.
274 A few pre-made functions are supplied: `gnus-subscribe-randomly'
275 inserts new groups at the beginning of the list of groups;
276 `gnus-subscribe-alphabetically' inserts new groups in strict
277 alphabetic order; `gnus-subscribe-hierarchically' inserts new groups
278 in hierarchical newsgroup order; `gnus-subscribe-interactively' asks
279 for your decision; `gnus-subscribe-killed' kills all new groups;
280 `gnus-subscribe-zombies' will make all new groups into zombies;
281 `gnus-subscribe-topics' will enter groups into the topics that
282 claim them."
291 function
295 "*Hooks run after you subscribe to a new group.
296 The hooks will be called with new group's name as argument."
302 'gnus-subscribe-alphabetically
304 If, for instance, you want to subscribe to all newsgroups in the
306 .newsrc file:
308 options -n no.all alt.all
310 Gnus will then subscribe all new newsgroups in these hierarchies
311 with the subscription method in this variable."
320 function
324 "*If non-nil, Gnus will offer to subscribe hierarchically.
325 When a new hierarchy appears, Gnus will ask the user:
327 'alt.binaries': Do you want to subscribe to this hierarchy? ([d]ys):
329 If the user pressed `d', Gnus will descend the hierarchy, `y' will
330 subscribe to all newsgroups in the hierarchy and `s' will skip this
331 hierarchy in its entirety."
336 "*New groups from methods of these categories will be subscribed automatically.
337 Note that this variable only deals with new groups. It has no
338 effect whatsoever on old groups. The default is to automatically
339 subscribe all groups from mail-like backends."
346 "*All new groups that match this regexp will be subscribed automatically.
347 Note that this variable only deals with new groups. It has no effect
348 whatsoever on old groups.
350 New groups that match this regexp will not be handled by
351 `gnus-subscribe-newsgroup-method'. Instead, they will
352 be subscribed using `gnus-subscribe-options-newsgroup-method'."
357 "*All new groups matching this regexp will be subscribed unconditionally.
358 Note that this variable deals only with new newsgroups. This variable
359 does not affect old newsgroups.
361 New groups that match this regexp will not be handled by
362 `gnus-subscribe-newsgroup-method'. Instead, they will
363 be subscribed using `gnus-subscribe-options-newsgroup-method'."
369 "*All new groups matching this regexp will be ignored.
370 Note that this variable deals only with new newsgroups. This variable
371 does not affect old (already subscribed) newsgroups."
377 "*Non-nil means .newsrc should be deleted prior to save.
378 Its use is due to the bogus appearance that .newsrc was modified on
379 disc."
384 "A hook run after removing bogus groups."
389 "A hook called at startup.
390 This hook is called after Gnus is connected to the NNTP server."
395 "A hook called before startup.
396 This hook is called as the first thing when Gnus is started."
401 "A hook called as the last thing after startup."
406 "A hook after reading the .newsrc file, but before generating the buffer."
411 "A hook run just before Gnus checks for new news globally."
417 "A hook run just before Gnus checks for new news."
423 "*A hook run after Gnus checks for new news when Gnus is already running."
429 "A hook called after reading the newsrc.eld? file."
434 "A hook called before saving any of the newsrc files."
439 "A hook called just before saving the quick newsrc file.
440 Can be used to turn version control on or off."
445 "A hook called just before saving the standard newsrc file.
446 Can be used to turn version control on or off."
451 "Hook for Gnus group mode."
457 "Unconditionally read the dribble file."
461 ;;; Internal variables
463 ;; Fixme: deal with old emacs-mule when mm-universal-coding-system is
464 ;; utf-8-emacs.
483 ;; Byte-compiler warning.
486 ;; Suggested by Brian Edmonds <edmonds@cs.ubc.ca>.
489 ;; Don't load .gnus if the -q option was used.
504 ;; For subscribing new newsgroup
508 prefixes prefix start ans group starts real-group)
518 start)
580 "Subscribe new NEWSGROUP by making it the first newsgroup."
584 "Subscribe new NEWGROUP and insert it in alphabetical order."
586 before)
594 "Subscribe new NEWGROUP and insert it in hierarchical newsgroup order."
595 ;; Basic ideas by mike-w@cs.aukuni.ac.nz (Mike Williams)
607 ;; Remove tail of newsgroup name (eg. a.b.c -> a.b)
615 "Subscribe the new GROUP interactively.
616 It is inserted in hierarchical newsgroup order if subscribed. If not,
617 it is killed."
623 "Make the new GROUP into a zombie group."
627 "Make the new GROUP a killed group."
631 "Subscribe new NEWSGROUP.
632 If NEXT is non-nil, it is inserted before NEXT. Otherwise it is made
633 the first newsgroup."
636 ;; We subscribe the group by changing its level to `subscribed'.
638 newsgroup gnus-level-default-subscribed
643 t))
646 "Say whether the active file has been read from `gnus-select-method'."
649 ;;; General various misc type functions.
651 ;; Silence byte-compiler.
668 "Close all servers."
674 "Clear all variables and buffers."
675 ;; Clear Gnus variables.
680 ;; Clear other internal variables.
682 gnus-have-read-active-file nil
683 gnus-agent-covered-methods nil
684 gnus-agent-file-loading-local nil
685 gnus-agent-file-loading-cache nil
686 gnus-server-method-cache nil
687 gnus-newsrc-alist nil
688 gnus-newsrc-hashtb nil
689 gnus-killed-list nil
690 gnus-zombie-list nil
691 gnus-killed-hashtb nil
692 gnus-active-hashtb nil
693 gnus-moderated-hashtb nil
694 gnus-description-hashtb nil
695 gnus-current-headers nil
696 gnus-thread-indent-array nil
697 gnus-newsgroup-headers nil
698 gnus-newsgroup-name nil
699 gnus-server-alist nil
700 gnus-group-list-mode nil
701 gnus-opened-servers nil
702 gnus-group-mark-positions nil
703 gnus-newsgroup-data nil
704 gnus-newsgroup-unreads nil
705 nnoo-state-alist nil
706 gnus-current-select-method nil
707 nnmail-split-history nil
708 gnus-extended-servers nil
709 gnus-ephemeral-servers nil)
711 ;; Kill the startup file.
715 ;; Clear the dribble buffer.
717 ;; Kill global KILL file buffer.
721 ;; Kill Gnus buffers.
724 ;; Remove Gnus frames.
728 "Read network news.
729 If ARG is a positive number, Gnus will use that as the startup
730 level. If ARG is nil, Gnus will be started at level 2
731 \(`gnus-level-default-subscribed' minus one). If ARG is non-nil
732 and not a positive number, Gnus will prompt the user for the name
734 will not connect to the local server."
742 "Read network news.
743 If ARG is non-nil and a positive number, Gnus will use that as the
744 startup level. If ARG is non-nil and not a positive number, Gnus will
745 prompt the user for the name of an NNTP server to use."
763 ;; Add "native" to gnus-predefined-server-alist just to have a
764 ;; name for the native select method.
767 gnus-predefined-server-alist))
773 did-connect)
781 ;; Couldn't connect to the server, so bail out.
784 ;; Find the current startup file name.
788 ;; Read the dribble file.
792 ;; Do the actual startup.
798 ;; Generate the group buffer.
806 "Make sure the draft group exists."
818 \f
819 ;;;
820 ;;; Dribble file
821 ;;;
827 "Return the dribble file for the current .newsrc."
832 gnus-current-startup-file)
836 "Enter STRING into the dribble buffer."
838 gnus-dribble-buffer
844 ;; This has been commented by Josh Huber <huber@alum.wpi.edu>
845 ;; It causes problems with both XEmacs and Emacs 21, and doesn't
846 ;; seem to be of much value. (FIXME: remove this after we make sure
847 ;; it's not needed).
848 ;; (set-window-point (get-buffer-window (current-buffer)) (point-max))
855 "Touch the dribble buffer."
859 "Read the dribble file from disk."
877 modes)
879 ;; Load whichever file is newest -- the auto save file
880 ;; or the "real" file.
886 ;; Set the file modes to reflect the .newsrc file modes.
895 ;; Possibly eval the file later.
899 "Gnus exited on purpose without saving; read auto-save file anyway? "
935 \f
936 ;;;
937 ;;; Active & Newsrc File Handling
938 ;;;
941 "Setup news information.
942 If RAWFILE is non-nil, the .newsrc file will also be read.
943 If LEVEL is non-nil, the news will be set up at level LEVEL."
946 ;; Binding this variable will inhibit multiple fetchings
947 ;; of the same mail source.
951 ;; Clear some variables to re-initialize news information.
953 gnus-active-hashtb nil)
954 ;; Read the newsrc file and create `gnus-newsrc-hashtb'.
957 ;; Make sure the archive server is available to all and sundry.
960 gnus-message-archive-method))
961 gnus-message-archive-method)))
962 ;; Check whether the archive method is writable.
966 gnus-valid-select-methods)))
970 ,method
983 gnus-server-alist))))
987 ;; If we don't read the complete active file, we fill in the
988 ;; hashtb here.
994 ;; Initialize the cache.
998 ;; Possibly eval the dribble file.
1003 ;; Slave Gnusii should then clear the dribble buffer.
1009 ;; See whether we need to read the description file.
1016 gnus-read-active-file)
1019 ;; Find new newsgroups and treat them.
1023 gnus-plugged)
1026 ;; Check and remove bogus newsgroups.
1032 ;; Read any slave files.
1035 ;; Find the number of unread articles in each non-dead group.
1040 "Call METHOD to subscribe GROUP.
1041 If no function returns `non-nil', call `gnus-subscribe-zombies'."
1050 nil))
1055 "Search for new newsgroups and add them.
1056 Each new newsgroup will be treated with `gnus-subscribe-newsgroup-method'.
1057 The `-n' option line from .newsrc is respected.
1059 With 1 C-u, use the `ask-server' method to query the server for new
1060 groups.
1061 With 2 C-u's, use most complete method possible to query the server
1062 for new groups, and subscribe the new groups as zombies."
1065 gnus-subscribe-newsgroup-method)
1075 t)
1079 ;; Ask the server for new groups.
1081 ;; Go through the active hashtb and look for new groups.
1083 group new-newsgroups)
1090 ;; Go though every newsgroup in `gnus-active-hashtb' and compare
1091 ;; with `gnus-newsrc-hashtb' and `gnus-killed-hashtb'.
1099 ()
1106 gnus-subscribe-options-newsgroup-method group))
1108 nil)
1115 gnus-subscribe-newsgroup-method group)))))))
1116 gnus-active-hashtb)
1123 groups))))
1126 ;; Returns `subscribe' if the group is to be unconditionally
1127 ;; subscribed, `ignore' if it is to be ignored, and nil if there is
1128 ;; no match for the group.
1130 ;; First we check the two user variables.
1139 do-subscribe)
1147 ;; Then we go through the list that was retrieved from the .newsrc
1148 ;; file. This list has elements on the form
1149 ;; `(REGEXP . {ignore,subscribe})'. The first match found (the list
1150 ;; is in the reverse order of the options line) is returned.
1167 gnus-check-new-newsgroups)
1168 gnus-secondary-select-methods))))
1170 group new-newsgroups got-new method hashtb
1171 gnus-override-subscribe-method)
1174 ;; Go through both primary and secondary select methods and
1175 ;; request new newsgroups.
1178 gnus-override-subscribe-method method)
1185 ;; Enter all the new groups into a hashtable.
1187 ;; Now all new groups from `method' are in `hashtb'.
1196 ;; The group is already known.
1197 ()
1198 ;; Make this group active.
1201 ;; Check whether we want it or not.
1208 gnus-subscribe-options-newsgroup-method group))
1210 nil)
1217 gnus-subscribe-newsgroup-method group)))))))
1218 hashtb))
1227 new-newsgroups))
1230 "Subscribe GROUP and put it after PREVIOUS."
1234 group)
1235 gnus-level-default-subscribed gnus-level-killed previous t)
1236 t)
1238 ;; `gnus-group-change-level' is the fundamental function for changing
1239 ;; subscription levels of newsgroups. This might mean just changing
1240 ;; from level 1 to 2, which is pretty trivial, from 2 to 6 or back
1241 ;; again, which subscribes/unsubscribes a group, which is equally
1242 ;; trivial. Changing from 1-7 to 8-9 means that you kill a group, and
1243 ;; from 8-9 to 1-7 means that you remove the group from the list of
1244 ;; killed (or zombie) groups and add them to the (kinda) subscribed
1245 ;; groups. And last but not least, moving from 8 to 9 and 9 to 8,
1246 ;; which is trivial.
1247 ;; ENTRY can either be a string (newsgroup name) or a list (if
1248 ;; FROMKILLED is t, it's a list on the format (NUM INFO-LIST),
1249 ;; otherwise it's a list in the format of the `gnus-newsrc-hashtb'
1250 ;; entries.
1251 ;; LEVEL is the new level of the group, OLDLEVEL is the old level and
1252 ;; PREVIOUS is the group (in hashtb entry format) to insert this group
1253 ;; after.
1255 previous fromkilled)
1257 ;; Glean what info we can from the arguments
1263 oldlevel
1275 ;; We are trying to subscribe a group that is already
1276 ;; subscribed.
1284 ;; Then we remove the newgroup from any old structures, if needed.
1285 ;; If the group was killed, we remove it from the killed or zombie
1286 ;; list. If not, and it is in fact going to be killed, we remove
1287 ;; it from the newsrc hash table and assoc.
1290 ;; oldlevel could be wrong.
1295 entry)
1302 ;; Finally we enter (if needed) the list where it is supposed to
1303 ;; go, and change the subscription level. If it is to be killed,
1304 ;; we enter it into the killed or zombie list.
1307 ;; Remove from the hash table.
1312 ;; Remove from active hashtb.
1314 ;; Don't add it into killed-list if it was killed.
1317 ;; If the list is to be entered into the newsrc assoc, and
1318 ;; it was killed, we have to create an entry in the newsrc
1319 ;; hashtb format and fix the pointers in the newsrc assoc.
1321 ;; It was alive, and it is going to stay alive, so we
1322 ;; just change the level and don't change any pointers or
1323 ;; hash table entries.
1331 ;; Shorten the select method if possible, if we need to
1332 ;; store it at all (native groups).
1344 p)))
1350 gnus-newsrc-hashtb))
1353 gnus-newsrc-hashtb))
1361 group level oldlevel previous)))))
1364 "Obsolete function. Kills a newsgroup."
1369 "Remove bogus newsgroups.
1370 If CONFIRM is non-nil, the user has to confirm the deletion of every
1371 newsgroup."
1373 bogus group entry info)
1378 ;; Find all bogus newsgroup that are subscribed.
1386 ;; Found a bogus newsgroup.
1392 ;; Remove all bogus subscribed groups by first killing them, and
1393 ;; then removing them from the list of killed groups.
1399 ;; Remove all bogus subscribed groups by first killing them, and
1400 ;; then removing them from the list of killed groups.
1404 ;; Then we remove all bogus groups from the list of killed and
1405 ;; zombie groups. They are removed without confirmation.
1407 killed)
1412 ;; The group is bogus.
1413 ;; !!!Slow as hell.
1421 "Remove duplicates from the list of killed groups."
1429 ;; We want to inline a function from gnus-cache, so we cheat here:
1433 "Alter the ACTIVE info for GROUP to reflect the articles in the cache."
1443 dont-sub-check)
1444 "Check whether a group has been activated or not.
1445 If SCAN, request a scan of that group as well."
1447 active)
1449 ;; We escape all bugs and quit here to make it possible to
1450 ;; continue if a group is so out-there that it reports bugs
1451 ;; and stuff.
1456 t)
1459 method
1463 method
1469 nil)))
1472 ;; If there are no articles in the group, the GROUP
1473 ;; command may have responded with the `(0 . 0)'. We
1474 ;; ignore this if we already have an active entry
1475 ;; for the group.
1481 ;; If a cache is present, we may have to alter the active info.
1484 group active)))
1486 ;; If the agent is enabled, we may have to alter the active info.
1491 ;; Return the new active info.
1492 active)))))
1498 ;; Allow the backend to update the info in the group.
1505 ;; Allow backends to update marks,
1515 ;; These checks are present in gnus-activate-group but skipped
1516 ;; due to setting dont-check in the preceding call.
1518 ;; If a cache is present, we may have to alter the active info.
1523 ;; If the agent is enabled, we may have to alter the active info.
1527 ;; Modify the list of read articles according to what articles
1528 ;; are available; then tally the unread articles and add the
1529 ;; number to the group hash table entry.
1536 ;; Fix a single (num . num) range according to the
1537 ;; active hash table.
1538 ;; Fix by Carsten Bormann <cabo@Informatik.Uni-Bremen.DE>.
1541 ;; Compute number of unread articles.
1544 ;; The read list is a list of ranges. Fix them according to
1545 ;; the active hash table.
1546 ;; First peel off any elements that are below the lower
1547 ;; active limit.
1562 ;; Adjust the first element to be the same as the lower limit.
1566 ;; Then we want to peel off any elements that are higher
1567 ;; than the upper active limit.
1569 ;; Go past all valid elements.
1577 ;; Nuke all remaining invalid elements.
1580 ;; Adjust the final element.
1584 ;; Compute the number of unread articles.
1592 ;; Set the number of unread articles.
1596 num)))
1598 ;; Go though `gnus-newsrc-alist' and compare with `gnus-active-hashtb'
1599 ;; and compute how many unread articles there are in each group.
1607 level
1613 gnus-activate-foreign-newsgroups)
1615 alevel)))
1620 infos info group active method cmethod
1621 method-type method-group-list entry)
1627 ;; First go through all the groups, see what select methods they
1628 ;; belong to, and then collect them into lists per unique select
1629 ;; method.
1632 ;; There may be several similar methods. Possibly extend the
1633 ;; method.
1655 type-cache))
1656 ;; Only add groups that need updating.
1659 foreign-level
1660 alevel))
1663 ;; The group is inactive, so we nix out the number of unread articles.
1664 ;; It leads `(gnus-group-unread group)' to return t. See also
1665 ;; `gnus-group-prepare-flat'.
1670 ;; Sort the methods based so that the primary and secondary
1671 ;; methods come first. This is done for legacy reasons to try to
1672 ;; ensure that side-effect behaviour doesn't change from previous
1673 ;; Gnus versions.
1679 ;; Go through the list of servers and possibly extend methods that
1680 ;; aren't equal (and that need extension; i.e., they are async).
1690 method))
1694 ;; If we have primary/secondary select methods, but no groups from
1695 ;; them, we still want to issue a retrieval request from them.
1697 gnus-secondary-select-methods))
1703 ;; Start early async retrieval of data.
1705 sanity-spec)
1711 ;; If the open-server method doesn't exist, then the method
1712 ;; itself doesn't exist, so we ignore it.
1718 ;; This is a sanity check, so that we never
1719 ;; attempt to start two async requests to the
1720 ;; same server, because that will fail. This
1721 ;; should never happen, since the methods should
1722 ;; be unique at this point, but apparently it
1723 ;; does happen in the wild with some setups.
1731 ;; Store the token we get back from -early so that we
1732 ;; can pass it to -finish later.
1736 ;; Do the rest of the retrieval.
1743 ;; See if any of the groups from this method require updating.
1748 updatep)))))))
1753 ;; Get info for virtual groups last.
1758 ;; Compute the rank of the secondary methods based on where they
1759 ;; are in the secondary select list.
1767 i)))
1768 ;; Just say that all foreign groups have the same rank.
1775 ;; Finish up getting the data from the methods that have -early
1776 ;; methods.
1778 early-data
1784 ;; Most backends have -retrieve-groups.
1792 method)))
1793 ;; Virtually all backends have -request-list.
1796 ;; Except nnvirtual and friends, where we request each group, one
1797 ;; by one.
1802 ;; Create a hash table out of the newsrc alist. The `car's of the
1803 ;; alist elements are used as keys.
1807 prev info method rest methods)
1813 gnus-newsrc-alist
1817 ;; Make the same select-methods identical Lisp objects.
1822 ;; Check for duplicates.
1824 ;; Remove this entry from the alist.
1828 ;; Preserve number of unread articles in groups.
1830 prev)
1831 gnus-newsrc-hashtb)
1834 ;; Make the same select-methods in `gnus-server-alist' identical
1835 ;; as well.
1842 "Create a hash table from the killed and zombie lists."
1844 list)
1854 "Parse active info in the nntp server buffer."
1857 ;; Parse the result we got from `gnus-request-group'.
1864 "Mark ARTICLES in GROUP as unread."
1869 news article)
1875 ;; Enter this list into the group info.
1879 ;; Set the number of unread articles in gnus-newsrc-hashtb.
1882 ;; Insert the change into the group buffer and the dribble file.
1886 "Mark ascending ARTICLES in GROUP as unread."
1892 modified)
1899 ;; the articles extend past the end of the ranges
1900 ;; OK - I'm done
1903 ;; this range precedes the article. Leave the range unmodified.
1905 ranges)
1907 ;; this range exactly matches the article; REMOVE THE RANGE.
1908 ;; NOTE: When the range being removed is the last range, the list is corrupted by inserting null at its end.
1912 nil))
1915 ;; I have a min/max range to consider
1920 ranges)
1922 ;; replace min/max range with a single-value range
1924 ranges)
1926 ;; this range precedes the article. Leave the range unmodified.
1928 ranges)
1930 ;; this article precedes the range. Return null to move to the
1931 ;; next article
1932 nil)
1934 ;; this article splits the range into two parts
1938 ranges))))))))
1943 ;; Enter this list into the group info.
1946 ;; Set the number of unread articles in gnus-newsrc-hashtb.
1949 ;; Insert the change into the group buffer and the dribble file.
1952 ;; Enter all dead groups into the hashtb.
1956 killed)
1965 "Go through the active hashtb and mark all unknown groups as killed."
1966 ;; First make sure active file has been read.
1972 ;; Go through all newsgroups that are known to Gnus - enlarge kill list.
1980 ()
1983 ()
1987 gnus-active-hashtb)
1990 ;; Get the active file(s) from the backend(s).
1999 ;; The native server is available.
2001 ;; The native server is down, so we just do the
2002 ;; secondary ones.
2003 gnus-secondary-select-methods)
2004 ;; Also read from the archive server.
2007 method)
2011 ;; Only do each method once, in case the methods appear more
2012 ;; than once in this list.
2014 ;; Check whether the backend exists.
2020 ;; We catch C-g so that we can continue past servers
2021 ;; that do not respond.
2026 nil))))))))
2037 ;; Request that the backend scan its incoming messages.
2049 groups info)
2056 gmethod))
2058 groups)))
2061 t)
2069 ;; We mark this active file as read.
2074 "Read an active file for GROUPS in METHOD using `gnus-retrieve-groups'."
2088 ;; Read an active file and place the results in `gnus-active-hashtb'.
2090 real-active)
2097 gnus-active-hashtb
2103 group max min)
2104 ;; Delete unnecessary lines.
2114 ;; Make the group names readable as a lisp expression even if they
2115 ;; contain special characters.
2120 ;; Let the Gnus agent save the active file.
2124 ;; If these are groups from a foreign select method, we insert the
2125 ;; group prefix in front of the group names.
2137 ;; Store the active file in a hash table.
2138 ;; Use a unibyte buffer in order to make `read' read non-ASCII
2139 ;; group names (which have been encoded) as unibyte strings.
2148 ;; group gets set to a symbol interned in the hash table
2149 ;; (what a hack!!) - jwz
2151 ;; ### The extended group name scheme makes
2152 ;; the previous optimization strategy sort of pointless...
2165 ;; if group is moderated, stick in moderation table
2170 gnus-moderated-hashtb)))
2184 ;; Parse a "groups" active file.
2188 gnus-active-hashtb
2198 ;; Let the Gnus agent save the active file.
2200 real-active
2208 ;; We split this into to separate loops, one with the prefix
2209 ;; and one without to speed the reading up somewhat.
2239 "Read startup file.
2240 If FORCE is non-nil, the .newsrc file is read."
2241 ;; Reset variables that might be defined in the .newsrc.eld file.
2249 ;; We always load the .newsrc.eld file. If always contains
2250 ;; much information that can not be gotten from the .newsrc
2251 ;; file (ticked articles, killed groups, foreign methods, etc.)
2261 ;; We read the .newsrc file. Note that if there if a
2262 ;; .newsrc.eld file exists, it has already been read, and
2263 ;; the `gnus-newsrc-hashtb' has been created. While reading
2264 ;; the .newsrc file, Gnus will only use the information it
2265 ;; can find there for changing the data already read -
2266 ;; i. e., reading the .newsrc file will not trash the data
2267 ;; already read (except for read articles).
2276 ;; Convert old to new.
2280 "Convert old newsrc formats into the current format, if needed."
2285 ;; A newsrc file was loaded.
2291 date-func))
2292 ;; This is a list of converters that must be run
2293 ;; to bring the newsrc file up to the current
2294 ;; version. If you create an incompatibility
2295 ;; with older versions, you should create an
2296 ;; entry here. The entry should consist of the
2297 ;; current gnus version (hardcoded so that it
2298 ;; doesn't change with each release) and the
2299 ;; function that must be applied to convert the
2300 ;; previous version into the current version.
2302 gnus-convert-old-ticks)
2304 gnus-agent-convert-to-compressed-agentview)
2306 gnus-agent-unlist-expire-days)
2308 gnus-agent-unhook-expire-days)))
2310 ;; Skip converters older than the file version
2314 ;; Perform converters to bring older version up to date.
2331 gnus-newsrc-file-version gnus-version)
2338 nil)
2343 t)
2347 t)))))
2352 gnus-newsrc-file-version gnus-version)))))))
2355 "Indicate whether CONVERTER requires gnus-convert-old-newsrc to
2356 display the conversion prompt. NO-PROMPT may be nil (prompt),
2357 t (no prompt), or any form that can be called as a function.
2358 The form should return either t or nil."
2364 no-prompt
2369 marks info dormant ticked)
2376 info
2383 "Load FILE, but in such a way that read errors can be reported."
2401 ;; We always, always read the .eld file.
2405 ;; Older versions of `gnus-format-specs' are no longer valid
2406 ;; in Oort Gnus 0.01.
2419 ;; Old format quick file
2421 ;; The .el file is newer than the .eld file, so we read that one
2422 ;; as well.
2426 ;; Parse the old-style quick startup file
2431 gnus-marked-assoc gnus-newsrc-alist gnus-newsrc-assoc)
2436 killed gnus-killed-assoc
2437 marked gnus-marked-assoc)))
2445 gnus-level-default-unsubscribed))
2450 gnus-level-default-unsubscribed)
2452 gnus-newsrc-alist))
2453 ;; Copy marks into info.
2465 ;; The .el file version of this variable does not begin with
2466 ;; "options", while the .eld version does, so we just add it if it
2467 ;; isn't there.
2469 gnus-newsrc-options
2474 ;; Finally, if we read some options lines, we parse them.
2482 "Make server dependent file name by catenating FILE and server host name."
2488 real-file
2489 file)))
2499 group subscribed options-symbol newsrc Options-symbol
2500 symbol reads num1)
2502 ;; We intern the symbol `options' in the active hashtb so that we
2503 ;; can `eq' against it later.
2508 ;; We first read the first word on the line by narrowing and
2509 ;; then reading into `gnus-active-hashtb'. Most groups will
2510 ;; already exist in that hashtb, so this will save some string
2511 ;; space.
2520 ;; Now, the symbol we have read is either `options' or a group
2521 ;; name. If it is an options line, we just add it to a string.
2526 ;; This concating is quite inefficient, but since our
2527 ;; thorough studies show that approx 99.37% of all
2528 ;; .newsrc files only contain a single options line, we
2529 ;; don't give a damn, frankly, my dear.
2533 ;; Options may continue on the next line.
2539 ;; Group names can be just numbers.
2544 ;; It was a group name.
2547 reads nil)
2549 ;; If the line ends here, this is clearly a buggy line, so
2550 ;; we put point a the beginning of line and let the cond
2551 ;; below do the error handling.
2553 ;; We skip to the beginning of the ranges.
2555 ;; We are now at the beginning of the list of read articles.
2556 ;; We read them range by range.
2560 ;; We narrow and read a number instead of buffer-substring/
2561 ;; string-to-number because it's faster. narrow/widen is
2562 ;; faster than save-restriction/narrow, and save-restriction
2563 ;; produces a garbage object.
2568 ;; If the next character is a dash, then this is a range.
2571 ;; We read the upper bound of the range.
2574 ;; This is a buggy line, by we pretend that
2575 ;; it's kinda OK. Perhaps the user should be
2576 ;; dinged?
2584 reads)
2586 ;; It was just a simple number, so we add it to the
2587 ;; list of ranges.
2589 ;; If the next char in ?\n, then we have reached the end
2590 ;; of the line and return nil.
2593 ;; End of line, so we end.
2594 nil)
2596 ;; Not numbers and not eol, so this might be a buggy
2597 ;; line...
2599 ;; If it was eob instead of ?\n, we allow it.
2600 ;; The line was buggy.
2605 nil))
2606 ;; Skip past ", ". Spaces are invalid in these ranges, but
2607 ;; we allow them, because it's a common mistake to put a
2608 ;; space after the comma.
2611 ;; We have already read .newsrc.eld, so we gently update the
2612 ;; data in the hash table with the information we have just
2613 ;; read.
2616 level)
2618 ;; There is an entry for this file in the alist.
2621 ;; We update the level very gently. In fact, we
2622 ;; only change it if there's been a status change
2623 ;; from subscribed to unsubscribed, or vice versa.
2628 gnus-level-default-unsubscribed
2633 ;; This is a new group.
2636 gnus-level-default-subscribed
2639 gnus-level-default-unsubscribed))
2647 ()
2648 ;; We now have two newsrc lists - `newsrc', which is what we
2649 ;; have read from .newsrc, and `gnus-newsrc-alist', which is
2650 ;; what we've read from .newsrc.eld. We have to merge these
2651 ;; lists. We do this by "attaching" any (foreign) groups in the
2652 ;; gnus-newsrc-alist to the (native) group that precedes them.
2655 entry mentry)
2667 ;; We make the newsrc hashtb.
2670 ;; Finally, if we read some options lines, we parse them.
2674 ;; Parse options lines to find "options -n !all rec.all" and stuff.
2675 ;; The return value will be a list on the form
2676 ;; ((regexp1 . ignore)
2677 ;; (regexp2 . subscribe)...)
2678 ;; When handling new newsgroups, groups that match a `ignore' regexp
2679 ;; will be ignored, and groups that match a `subscribe' regexp will be
2680 ;; subscribed. A line like
2681 ;; options -n !all rec.all
2682 ;; will lead to a list that looks like
2683 ;; (("^rec\\..+" . subscribe)
2684 ;; ("^.+" . ignore))
2685 ;; So all "rec.*" groups will be subscribed, while all the other
2686 ;; groups will be ignored. Note that "options -n !all rec.all" is very
2687 ;; different from "options -n rec.all !all".
2693 ;; First we treat all continuation lines.
2697 ;; Then we transform all "all"s into ".+"s.
2702 ;; We remove all other options than the "-n" ones.
2708 ;; We are only interested in "options -n" lines - we
2709 ;; ignore the other option lines.
2716 ;; Search for all "words"...
2719 ;; If the word begins with a bang (!), this is a "not"
2720 ;; spec. We put this spec (minus the bang) and the
2721 ;; symbol `ignore' into the list.
2728 out)
2729 ;; There was no bang, so this is a "yes" spec.
2732 out))))
2739 'msdos-long-file-names
2743 "Save .newsrc file."
2744 ;; Note: We cannot save .newsrc file if all newsgroups are removed
2745 ;; from the variable gnus-newsrc-alist.
2747 gnus-current-startup-file)
2748 ;; Save agent range limits for the currently active method.
2763 ;; Save .newsrc.
2769 ;; Save .newsrc.eld.
2790 working-file
2792 ;; Generate the name of a non-existent file.
2808 ;; These bindings will mislead the current buffer
2809 ;; into thinking that it is visiting the startup
2810 ;; file.
2815 ;; Backup the current version of the startup file.
2818 ;; Replace the existing startup file with the temp file.
2832 "Print Gnus variables such as `gnus-newsrc-alist' in Lisp format."
2834 gnus-ding-file-coding-system))
2841 ;; Never delete this file -- if you want to force Gnus to read the
2859 gnus-killed-list))
2863 ;; Remove the `gnus-killed-list' from the list of variables
2864 ;; to be saved, if required.
2866 ;; Peel off the "dummy" group.
2868 variable)
2869 ;; Insert the variables into the file.
2880 "Return the killed list minus the groups that match `gnus-save-killed-list'."
2882 olist)
2891 ;; Generate and save the .newsrc file.
2895 info ranges range method)
2900 ;; Use a unibyte buffer since group names are unibyte strings;
2901 ;; in particular, non-ASCII group names are the ones encoded by
2902 ;; a certain coding system.
2904 ;; Write options.
2907 ;; Write subscribed and unsubscribed.
2909 ;; Don't write foreign groups to .newsrc.
2913 foreign-ok)
2936 ;; It has been reported that sometime the modtime on the .newsrc
2937 ;; file seems to be off. We really do want to overwrite it, so
2938 ;; we clear the modtime here before saving. It's a bit odd,
2939 ;; though...
2940 ;; sometimes the modtime clear isn't sufficient. most brute force:
2941 ;; delete the silly thing entirely first. but this fails to provide
2942 ;; such niceties as .newsrc~ creation.
2951 \f
2952 ;;;
2953 ;;; Slave functions.
2954 ;;;
2959 "Minor mode for slave Gnusae."
2960 ;; FIXME: gnus-slave-mode appears to never be set (i.e. it'll always be nil):
2961 ;; Remove, or fix and use define-minor-mode.
2985 t))
2986 file)
2994 slave-files)
3005 t)
3008 nil))
3016 \f
3017 ;;;
3018 ;;; Group description.
3019 ;;;
3026 gnus-secondary-select-methods))))
3030 t))
3034 group)
3037 ;; We create the hashtable whether we manage to read the desc file
3038 ;; to avoid trying to re-read after a failed read.
3042 ;; Mark this method's desc file as read.
3044 gnus-description-hashtb)
3049 t)
3052 nil)
3055 nil)
3058 ;; FIXME: Shouldn't save-restriction be done after set-buffer?
3066 ;; If these are groups from a foreign select method, we insert the
3067 ;; group prefix in front of the group names.
3072 nil gnus-select-method))))
3080 ;; If we get an error, we set group to 0, which is not a
3081 ;; symbol...
3085 ;; Group is set to a symbol interned in this
3086 ;; hash table.
3090 ;; ... which leads to this line being effectively ignored.
3098 gnus-default-charset)))
3099 ;; Fixme: Don't decode in unibyte mode.
3105 t))))
3108 "Get the description of a group by sending XGTITLE to the server."
3115 ;;;###autoload
3117 "Declare back end NAME with ABILITIES as a Gnus back end."
3124 "Set the default directory in the current buffer to `gnus-default-directory'.
3125 If this variable is nil, don't do anything."
3130 default-directory)))
3138 ;; Check whether nnml and nnfolder share a directory.
3141 'display-warning
3153 window
3158 method active actives match)
3175 ;;; gnus-start.el ends here