/
twittering-mode.el
3775 lines (3469 loc) · 129 KB
/
twittering-mode.el
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
;;; -*- indent-tabs-mode: t; tab-width: 8 -*-
;;;
;;; twittering-mode.el --- Major mode for Twitter
;; Copyright (C) 2007, 2009, 2010 Yuto Hayamizu.
;; 2008 Tsuyoshi CHO
;; Author: Y. Hayamizu <y.hayamizu@gmail.com>
;; Tsuyoshi CHO <Tsuyoshi.CHO+develop@Gmail.com>
;; Alberto Garcia <agarcia@igalia.com>
;; Created: Sep 4, 2007
;; Version: HEAD
;; Identity: $Id$
;; Keywords: twitter web
;; URL: http://twmode.sf.net/
;; This file is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;; This file is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING. If not, write to
;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;; Commentary:
;; twittering-mode.el is a major mode for Twitter.
;; You can check friends timeline, and update your status on Emacs.
;;; Feature Request:
;; URL : http://twitter.com/d00dle/statuses/577876082
;; * Status Input from Popup buffer and C-cC-c to POST.
;; URL : http://code.nanigac.com/source/view/419
;; * update status for region
;;; Code:
(eval-when-compile (require 'cl))
(require 'xml)
(require 'parse-time)
(when (> 22 emacs-major-version)
(add-to-list 'load-path
(expand-file-name
"url-emacs21" (if load-file-name
(or (file-name-directory load-file-name)
".")
".")))
(and (require 'un-define nil t)
;; the explicitly require 'unicode to update a workaround with
;; navi2ch. see a comment of `twittering-ucs-to-char' for more
;; details.
(require 'unicode nil t))
(set-terminal-coding-system 'utf-8))
(require 'url)
(defconst twittering-mode-version "HEAD")
(defconst twittering-mode-identity "$Id$")
(defun twittering-mode-version ()
"Display a message for twittering-mode version."
(interactive)
(let ((version-string
(format "twittering-mode-v%s" twittering-mode-version)))
(if (interactive-p)
(message "%s" version-string)
version-string)))
(defconst twittering-max-number-of-tweets-on-retrieval 200
"The maximum number of `twittering-number-of-tweets-on-retrieval'.")
(defvar twittering-number-of-tweets-on-retrieval 20
"*The number of tweets which will be retrieved in one request.
The upper limit is `twittering-max-number-of-tweets-on-retrieval'.")
(defvar twittering-tinyurl-service 'tinyurl
"The service to use. One of 'tinyurl' or 'toly'.")
(defvar twittering-tinyurl-services-map
'((tinyurl . "http://tinyurl.com/api-create.php?url=")
(toly . "http://to.ly/api.php?longurl="))
"Alist of tinyfy services.")
(defvar twittering-mode-map (make-sparse-keymap))
(defvar twittering-tweet-history nil)
(defvar twittering-user-history nil)
(defvar twittering-timeline-history nil)
(defvar twittering-hashtag-history nil)
(defvar twittering-search-history nil)
(defvar twittering-current-hashtag nil
"A hash tag string currently set. You can set it by calling
`twittering-set-current-hashtag'.")
(defvar twittering-timer nil
"Timer object for timeline refreshing will be stored here.
DO NOT SET VALUE MANUALLY.")
(defvar twittering-timer-interval 90
"The interval of auto reloading. You should use 60 or more
seconds for this variable because the number of API call is
limited by the hour.")
(defvar twittering-timer-for-redisplaying nil
"Timer object for timeline redisplay statuses will be stored here.
DO NOT SET VALUE MANUALLY.")
(defvar twittering-timer-interval-for-redisplaying 17
"The interval of auto redisplaying statuses.")
(defvar twittering-username nil
"An username of your Twitter account.")
(defvar twittering-username-active nil
"Copy of `twittering-username' for internal use.")
(defvar twittering-password nil
"A password of your Twitter account. Leave it blank is the
recommended way because writing a password in .emacs file is so
dangerous.")
(defvar twittering-password-active nil
"Copy of `twittering-password' for internal use.")
(defvar twittering-initial-timeline-spec-string ":home"
"The initial timeline spec string.")
(defvar twittering-timeline-spec-alias nil
"*Alist for aliases of timeline spec.
Each element is (NAME . SPEC-STRING), where NAME is a string and
SPEC-STRING is a string or a function that returns a timeline spec string.
The alias can be referred as \"$NAME\" or \"$NAME(ARG)\" in timeline spec
string. If SPEC-STRING is a string, ARG is simly ignored.
If SPEC-STRING is a function, it is called with a string argument.
For the style \"$NAME\", the function is called with nil.
For the style \"$NAME(ARG)\", the function is called with a string ARG.
For example, if you specify
'((\"FRIENDS\" . \"(USER1+USER2+USER3)\")
(\"to_me\" . \"(:mentions+:retweets_of_me+:direct_messages)\")
(\"related-to\" .
,(lambda (username)
(if username
(format \":search/to:%s OR from:%s OR @%s/\"
username username username)
\":home\")))),
then you can use \"$to_me\" as
\"(:mentions+:retweets_of_me+:direct_messages)\".")
(defvar twittering-current-timeline-spec-string nil
"The current timeline spec string. This variable should not be referred
directly. Use `twittering-current-timeline-spec-string' or
`twittering-current-timeline-spec'.")
(defvar twittering-list-index-retrieved nil)
(defvar twittering-process-info-alist nil
"Alist of active process and timeline spec retrieved by the process.")
(defvar twittering-server-info-alist nil
"Alist of server information.")
(defvar twittering-new-tweets-count 0
"*Number of new tweets when `twittering-new-tweets-hook' is run.")
(defvar twittering-new-tweets-hook nil
"*Hook run when new tweets are received.
You can read `twittering-new-tweets-count' to get the number of new
tweets received when this hook is run.")
(defvar twittering-scroll-mode nil)
(defvar twittering-jojo-mode nil)
(defvar twittering-reverse-mode nil
"*Non-nil means tweets are aligned in reverse order of `http://twitter.com/'.")
(defvar twittering-display-remaining nil
"*If non-nil, display remaining of rate limit on the mode line.")
(defvar twittering-status-format "%i %s, %@:\n%FILL{ %T // from %f%L%r%R}\n "
"Format string for rendering statuses.
Ex. \"%i %s, %@:\\n%FILL{ %T // from %f%L%r%R}\n \"
Items:
%s - screen_name
%S - name
%i - profile_image
%d - description
%l - location
%L - \" [location]\"
%r - \" in reply to user\"
%R - \" (retweeted by user)\"
%u - url
%j - user.id
%p - protected?
%c - created_at (raw UTC string)
%C{time-format-str} - created_at (formatted with time-format-str)
%@ - X seconds ago
%T - raw text
%t - text filled as one paragraph
%' - truncated
%FACE[face-name]{...} - strings decorated with the specified face.
%FILL{...} - strings filled as a paragrah.
You can use any other specifiers in braces.
%f - source
%# - id
")
(defvar twittering-retweet-format "RT: %t (via @%s)"
"Format string for retweet.
Items:
%s - screen_name
%t - text
%% - %
")
(defvar twittering-use-show-minibuffer-length t
"*Show current length of minibuffer if this variable is non-nil.
We suggest that you should set to nil to disable the showing function
when it conflict with your input method (such as AquaSKK, etc.)")
(defvar twittering-notify-successful-http-get t)
(defvar twittering-use-ssl t
"Use SSL connection if this variable is non-nil.
SSL connections use 'curl' command as a backend.")
(defvar twittering-curl-program nil
"Cache a result of `twittering-find-curl-program'.
DO NOT SET VALUE MANUALLY.")
(defvar twittering-connection-type-order '(curl native))
"*A list of connection methods in the preferred order."
(defvar twittering-connection-type-table
'((native (check . t)
(https . nil)
(start . twittering-start-http-session-native))
(curl (check . twittering-start-http-session-curl-p)
(https . twittering-start-http-session-curl-https-p)
(start . twittering-start-http-session-curl)))
"A list of alist of connection methods.")
(defvar twittering-buffer "*twittering*")
(defun twittering-buffer ()
(twittering-get-or-generate-buffer twittering-buffer))
(defvar twittering-format-status-function-source ""
"The status format string that has generated the current
`twittering-format-status-function'.")
(defvar twittering-format-status-function nil
"The formating function generated from `twittering-format-status-function-source'.")
(defvar twittering-timeline-data-table (make-hash-table :test 'equal))
(defvar twittering-username-face 'twittering-username-face)
(defvar twittering-uri-face 'twittering-uri-face)
(defvar twittering-use-native-retweet nil
"Post retweets using native retweets if this variable is non-nil.")
(defvar twittering-update-status-function
'twittering-update-status-from-minibuffer
"The function used to posting a tweet. It takes two arguments:
the first argument INIT-STR is initial text to be edited and the
second argument REPLY-TO-ID is a user ID of a tweet to which you
are going to reply.
Twittering-mode provides two functions for updating status:
* `twittering-update-status-from-minibuffer': edit tweets in minibuffer
* `twittering-update-status-from-pop-up-buffer': edit tweets in pop-up buffer")
;;;
;;; Proxy setting / functions
;;;
(defvar twittering-proxy-use nil)
(defvar twittering-proxy-keep-alive nil)
(defvar twittering-proxy-server nil
"*The proxy server for `twittering-mode'.
If nil, it is initialized on entering `twittering-mode'.
The port number is specified by `twittering-proxy-port'.")
(defvar twittering-proxy-port nil
"*The port number of a proxy server for `twittering-mode'.
If nil, it is initialized on entering `twittering-mode'.
The server is specified by `twittering-proxy-server'.")
(defvar twittering-proxy-user nil)
(defvar twittering-proxy-password nil)
(defun twittering-find-proxy (scheme)
"Find proxy server and its port for `twittering-mode' and returns
a cons pair of them.
SCHEME must be \"http\" or \"https\"."
(cond
((require 'url-methods nil t)
(url-scheme-register-proxy scheme)
(let* ((proxy-service (assoc scheme url-proxy-services))
(proxy (if proxy-service (cdr proxy-service) nil)))
(if (and proxy
(string-match "^\\([^:]+\\):\\([0-9]+\\)$" proxy))
(let ((host (match-string 1 proxy))
(port (string-to-number (match-string 2 proxy))))
(cons host port))
nil)))
(t
(let* ((env-var (concat scheme "_proxy"))
(env-proxy (or (getenv (upcase env-var))
(getenv (downcase env-var))))
(default-port (if (string= "https" scheme) "443" "80")))
(if (and env-proxy
(string-match
"^\\(https?://\\)?\\([^:/]+\\)\\(:\\([0-9]+\\)\\)?/?$"
env-proxy))
(let* ((host (match-string 2 env-proxy))
(port-str (or (match-string 4 env-proxy) default-port))
(port (string-to-number port-str)))
(cons host port))
nil)))))
(defun twittering-setup-proxy ()
(unless (and twittering-proxy-server twittering-proxy-port)
(let ((proxy-info (or (if twittering-use-ssl
(twittering-find-proxy "https"))
(twittering-find-proxy "http"))))
(when proxy-info
(let ((host (car proxy-info))
(port (cdr proxy-info)))
(setq twittering-proxy-server host)
(setq twittering-proxy-port port)))))
(if (and twittering-proxy-use
(null twittering-proxy-server)
(null twittering-proxy-port))
(progn
(message "Disabling proxy due to lack of configuration.")
(setq twittering-proxy-use nil))
t))
(defun twittering-toggle-proxy ()
(interactive)
(setq twittering-proxy-use
(not twittering-proxy-use))
(if (twittering-setup-proxy)
(message (if twittering-proxy-use "Use Proxy:on" "Use Proxy:off")))
(twittering-update-mode-line))
;;;
;;; to show image files
;;;
(defvar twittering-icon-mode nil
"You MUST NOT CHANGE this variable directly.
You should change through function `twittering-icon-mode'.")
(defun twittering-icon-mode (&optional arg)
"Toggle display of icon images on timelines.
With a numeric argument, if the argument is positive, turn on
icon mode; otherwise, turn off icon mode."
(interactive "P")
(let ((prev-mode twittering-icon-mode))
(setq twittering-icon-mode
(if (null arg)
(not twittering-icon-mode)
(< 0 (prefix-numeric-value arg))))
(unless (eq prev-mode twittering-icon-mode)
(twittering-update-mode-line)
(twittering-render-timeline))))
(defvar twittering-image-data-table (make-hash-table :test 'equal))
(defvar twittering-image-stack nil)
(defvar twittering-image-type-cache nil)
(defvar twittering-convert-program (executable-find "convert"))
(defvar twittering-convert-fix-size 48)
(defvar twittering-use-convert (not (null twittering-convert-program))
"*This variable makes a sense only if `twittering-convert-fix-size'
is non-nil. If this variable is non-nil, icon images are converted by
invoking \"convert\". Otherwise, cropped images are displayed.")
(defun twittering-image-type (image-url buffer)
"Return the type of a given image based on the URL (IMAGE-URL)
and its contents (BUFFER)"
(let ((type-cache (assoc image-url twittering-image-type-cache))
(case-fold-search t))
(if type-cache
(cdr type-cache)
(let ((image-type (image-type-from-data (buffer-string))))
(add-to-list 'twittering-image-type-cache `(,image-url . ,image-type))
image-type))))
;;;
;;; Utility functions
;;;
(defun twittering-get-or-generate-buffer (buffer)
(if (bufferp buffer)
(if (buffer-live-p buffer)
buffer
(generate-new-buffer (buffer-name buffer)))
(if (stringp buffer)
(or (get-buffer buffer)
(generate-new-buffer buffer)))))
(defun twittering-get-status-url (username id)
"Generate status URL."
(format "http://twitter.com/%s/statuses/%s" username id))
(defun twittering-user-agent-default-function ()
"Twittering mode default User-Agent function."
(format "Emacs/%d.%d Twittering-mode/%s"
emacs-major-version emacs-minor-version
twittering-mode-version))
(defvar twittering-sign-simple-string nil)
(defun twittering-sign-string-default-function ()
"Append sign string to tweet."
(if twittering-sign-simple-string
(format " [%s]" twittering-sign-simple-string)
""))
(defvar twittering-user-agent-function 'twittering-user-agent-default-function)
(defvar twittering-sign-string-function 'twittering-sign-string-default-function)
(defun twittering-user-agent ()
"Return User-Agent header string."
(funcall twittering-user-agent-function))
(defun twittering-sign-string ()
"Return Tweet sign string."
(funcall twittering-sign-string-function))
(defvar twittering-mode-string "twittering-mode")
(defun twittering-update-mode-line ()
"Update mode line."
(let ((enabled-options nil)
(spec-string (twittering-current-timeline-spec-string)))
(when twittering-jojo-mode
(push "jojo" enabled-options))
(when twittering-icon-mode
(push "icon" enabled-options))
(when twittering-reverse-mode
(push "reverse" enabled-options))
(when twittering-scroll-mode
(push "scroll" enabled-options))
(when twittering-proxy-use
(push "proxy" enabled-options))
(when twittering-use-ssl
(push "ssl" enabled-options))
(setq mode-name
(concat twittering-mode-string
(if twittering-display-remaining
(format " %d/%d"
(twittering-get-ratelimit-remaining)
(twittering-get-ratelimit-limit))
"")
(if spec-string
(concat " " spec-string)
"")
(if enabled-options
(concat "["
(mapconcat 'identity enabled-options ",")
"]")
""))))
(force-mode-line-update)
)
(defun twittering-status-id< (id1 id2)
(let ((len1 (length id1))
(len2 (length id2)))
(cond
((= len1 len2) (string< id1 id2))
((< len1 len2) t)
(t nil))))
(defun twittering-status-id= (id1 id2)
(equal id1 id2))
(defun twittering-fill-string (str &optional column)
(when (and (not (boundp 'kinsoku-limit))
enable-kinsoku)
;; `kinsoku-limit' is defined on loading "international/kinsoku.el".
;; Without preloading, "kinsoku.el" will be loaded by auto-loading
;; triggered by `fill-region-as-paragraph'.
;; In that case, the local binding of `kinsoku-limit' conflicts the
;; definition by `defvar' in "kinsoku.el".
;; The below warning is displayed;
;; "Warning: defvar ignored because kinsoku-limit is let-bound".
;; So, we load "kinsoku.el" in advance if necessary.
(load "international/kinsoku"))
(let* ((kinsoku-limit 1)
(adjustment (+ (if (and (boundp 'fill-prefix) (stringp fill-prefix))
(string-width fill-prefix)
0)
(if enable-kinsoku
kinsoku-limit
0)))
(min-width
(apply 'min
(or
(mapcar 'window-width
(get-buffer-window-list (current-buffer) nil t))
;; Use `(frame-width)' if no windows display
;; the current buffer.
`(,(frame-width)))))
(temporary-fill-column
(or column
(- (1- min-width) adjustment))))
(with-temp-buffer
(let ((fill-column temporary-fill-column))
(insert str)
(fill-region-as-paragraph (point-min) (point-max))
(buffer-substring (point-min) (point-max))))))
(defun twittering-set-window-end (window pos)
(let* ((height (window-text-height window))
(n (- (- height 1))))
(while (progn (setq n (1+ n))
(set-window-start
window
(with-current-buffer (window-buffer window)
(save-excursion
(goto-char pos)
(line-beginning-position n))))
(not (pos-visible-in-window-p pos window))))))
(defun twittering-make-passed-time-string
(beg end encoded-created-at &optional additional-properties)
(let* ((now (current-time))
(secs (+ (* (- (car now) (car encoded-created-at)) 65536)
(- (cadr now) (cadr encoded-created-at))))
(time-string
(cond
((< secs 5) "less than 5 seconds ago")
((< secs 10) "less than 10 seconds ago")
((< secs 20) "less than 20 seconds ago")
((< secs 30) "half a minute ago")
((< secs 60) "less than a minute ago")
((< secs 150) "1 minute ago")
((< secs 2400) (format "%d minutes ago"
(/ (+ secs 30) 60)))
((< secs 5400) "about 1 hour ago")
((< secs 84600) (format "about %d hours ago"
(/ (+ secs 1800) 3600)))
(t (format-time-string "%I:%M %p %B %d, %Y"
encoded-created-at))))
(properties (append additional-properties
(and beg (text-properties-at beg)))))
;; Restore properties.
(when properties
(add-text-properties 0 (length time-string) properties time-string))
(if (< secs 84600)
(put-text-property 0 (length time-string)
'need-to-be-updated
`(twittering-make-passed-time-string
,encoded-created-at)
time-string)
;; Remove the property required no longer.
(remove-text-properties 0 (length time-string) '(need-to-be-updated nil)
time-string))
time-string))
(defun twittering-update-filled-string (beg end formater status)
(let* ((str (twittering-fill-string (funcall formater status)))
(next (next-single-property-change 0 'need-to-be-updated str))
(properties
(and beg
(apply 'append
(mapcar (lambda (prop)
(let ((value (get-text-property beg prop)))
(when value
`(,prop ,value))))
'(id text username))))))
;; Restore properties.
(when properties
(add-text-properties 0 (length str) properties str))
(if (or (get-text-property 0 'need-to-be-updated str)
(and next (< next (length str))))
(put-text-property 0 (length str) 'need-to-be-updated
`(twittering-update-filled-string ,formater ,status)
str)
;; Remove the property required no longer.
(remove-text-properties 0 (length str) '(need-to-be-updated nil) str))
str))
;;;
;;; Utility functions for portability
;;;
(defun twittering-ucs-to-char (num)
;; Check (featurep 'unicode) is a workaround with navi2ch to avoid
;; error "error in process sentinel: Cannot open load file:
;; unicode".
;;
;; Details: navi2ch prior to 1.8.3 (which is currently last release
;; version as of 2010-01-18) always define `ucs-to-char' as autoload
;; file "unicode(.el)" (which came from Mule-UCS), hence it breaks
;; `ucs-to-char' under non Mule-UCS environment. The problem is
;; fixed in navi2ch dated 2010-01-16 or later, but not released yet.
(if (and (featurep 'unicode) (functionp 'ucs-to-char))
(ucs-to-char num)
;; Emacs21 have a partial support for UTF-8 text, so it can decode
;; only parts of a text with Japanese.
(or (decode-char 'ucs num)
??)))
(defun twittering-remove-duplicates (list)
"Return a copy of LIST with all duplicate elements removed.
This is non-destructive version of `delete-dups' which is not
defined in Emacs21."
(if (fboundp 'delete-dups)
(delete-dups (copy-sequence list))
(let ((rest list)
(result nil))
(while rest
(unless (member (car rest) result)
(setq result (cons (car rest) result)))
(setq rest (cdr rest)))
(nreverse result))))
(defun twittering-completing-read (prompt collection &optional predicate require-match initial-input hist def inherit-input-method)
"Read a string in the minibuffer, with completion.
This is a modified version of `completing-read' and accepts candidates
as a list of a string on Emacs21."
;; completing-read() of Emacs21 does not accepts candidates as
;; a list. Candidates must be given as an alist.
(let* ((collection (twittering-remove-duplicates collection))
(collection
(if (and (> 22 emacs-major-version)
(listp collection)
(stringp (car collection)))
(mapcar (lambda (x) (cons x nil)) collection)
collection)))
(completing-read prompt collection predicate require-match
initial-input hist def inherit-input-method)))
(eval-when-compile ;; shut up the byte compiler.
(defvar twittering-debug-buffer)
(defvar twittering-edit-buffer))
(defun twittering-buffer-active-p ()
"Return t if current buffer is twittering-mode related buffer."
(member (buffer-name (current-buffer))
(list twittering-buffer
twittering-debug-buffer
twittering-edit-buffer)))
(defun assocref (item alist)
(cdr (assoc item alist)))
(defmacro list-push (value listvar)
`(setq ,listvar (cons ,value ,listvar)))
(defmacro case-string (str &rest clauses)
`(cond
,@(mapcar
(lambda (clause)
(let ((keylist (car clause))
(body (cdr clause)))
`(,(if (listp keylist)
`(or ,@(mapcar (lambda (key) `(string-equal ,str ,key))
keylist))
't)
,@body)))
clauses)))
;;;
;;; Timeline spec functions
;;;
;;; Timeline spec as S-expression
;;; - (user USER): timeline of the user whose name is USER. USER is a string.
;;; - (list USER LIST):
;;; the list LIST of the user USER. LIST and USER are strings.
;;;
;;; - (direct_messages): received direct messages.
;;; - (direct_messages_sent): sent direct messages.
;;; - (friends): friends timeline.
;;; - (home): home timeline.
;;; - (mentions): mentions timeline.
;;; mentions (status containing @username) for the authenticating user.
;;; - (public): public timeline.
;;; - (replies): replies.
;;; - (retweeted_by_me): retweets posted by the authenticating user.
;;; - (retweeted_to_me): retweets posted by the authenticating user's friends.
;;; - (retweets_of_me):
;;; tweets of the authenticated user that have been retweeted by others.
;;;
;;; - (search STRING): the result of searching with query STRING.
;;; - (merge SPEC1 SPEC2 ...): result of merging timelines SPEC1 SPEC2 ...
;;; - (filter REGEXP SPEC): timeline filtered with REGEXP.
;;;
;;; Timeline spec string
;;;
;;; SPEC ::= PRIMARY | COMPOSITE
;;; PRIMARY ::= USER | LIST | DIRECT_MESSSAGES | DIRECT_MESSSAGES_SENT
;;; | FRIENDS | HOME | MENTIONS | PUBLIC | REPLIES
;;; | RETWEETED_BY_ME | RETWEETED_TO_ME | RETWEETS_OF_ME
;;; | SEARCH
;;; COMPOSITE ::= MERGE | FILTER
;;;
;;; USER ::= /[a-zA-Z0-9_-]+/
;;; LIST ::= USER "/" LISTNAME
;;; LISTNAME ::= /[a-zA-Z0-9_-]+/
;;; DIRECT_MESSSAGES ::= ":direct_messages"
;;; DIRECT_MESSSAGES_SENT ::= ":direct_messages_sent"
;;; FRIENDS ::= ":friends"
;;; HOME ::= ":home" | "~"
;;; MENTIONS ::= ":mentions"
;;; PUBLIC ::= ":public"
;;; REPLIES ::= ":replies" | "@"
;;; RETWEETED_BY_ME ::= ":retweeted_by_me"
;;; RETWEETED_TO_ME ::= ":retweeted_to_me"
;;; RETWEETS_OF_ME ::= ":retweets_of_me"
;;;
;;; SEARCH ::= ":search/" QUERY_STRING "/"
;;; QUERY_STRING ::= any string, where "/" is escaped by a backslash.
;;; MERGE ::= "(" MERGED_SPECS ")"
;;; MERGED_SPECS ::= SPEC | SPEC "+" MERGED_SPECS
;;; FILTER ::= ":filter/" REGEXP "/" SPEC
;;;
(defun twittering-timeline-spec-to-string (timeline-spec &optional shorten)
"Convert TIMELINE-SPEC into a string.
If SHORTEN is non-nil, the abbreviated expression will be used."
(let ((type (car timeline-spec))
(value (cdr timeline-spec)))
(cond
;; user
((eq type 'user) (car value))
;; list
((eq type 'list) (concat (car value) "/" (cadr value)))
;; simple
((eq type 'direct_messages) ":direct_messages")
((eq type 'direct_messages_sent) ":direct_messages_sent")
((eq type 'friends) ":friends")
((eq type 'home) (if shorten "~" ":home"))
((eq type 'mentions) ":mentions")
((eq type 'public) ":public")
((eq type 'replies) (if shorten "@" ":replies"))
((eq type 'retweeted_by_me) ":retweeted_by_me")
((eq type 'retweeted_to_me) ":retweeted_to_me")
((eq type 'retweets_of_me) ":retweets_of_me")
((eq type 'search)
(let ((query (car value)))
(concat ":search/"
(replace-regexp-in-string "/" "\\/" query nil t)
"/")))
;; composite
((eq type 'filter)
(let ((regexp (car value))
(spec (cadr value)))
(concat ":filter/"
(replace-regexp-in-string "/" "\\/" regexp nil t)
"/"
(twittering-timeline-spec-to-string spec))))
((eq type 'merge)
(concat "("
(mapconcat 'twittering-timeline-spec-to-string value "+")
")"))
(t
nil))))
(defun twittering-extract-timeline-spec (str &optional unresolved-aliases)
"Extract one timeline spec from STR.
Return cons of the spec and the rest string."
(cond
((null str)
(error "STR is nil")
nil)
((string-match "^\\([a-zA-Z0-9_-]+\\)/\\([a-zA-Z0-9_-]+\\)" str)
(let ((user (match-string 1 str))
(listname (match-string 2 str))
(rest (substring str (match-end 0))))
`((list ,user ,listname) . ,rest)))
((string-match "^\\([a-zA-Z0-9_-]+\\)" str)
(let ((user (match-string 1 str))
(rest (substring str (match-end 0))))
`((user ,user) . ,rest)))
((string-match "^~" str)
`((home) . ,(substring str (match-end 0))))
((string-match "^@" str)
`((replies) . ,(substring str (match-end 0))))
((string-match "^#\\([a-zA-Z0-9_-]+\\)" str)
(let* ((tag (match-string 1 str))
(query (concat "#" tag))
(rest (substring str (match-end 0))))
`((search ,query) . ,rest)))
((string-match "^:\\([a-z_-]+\\)" str)
(let ((type (match-string 1 str))
(following (substring str (match-end 0)))
(alist '(("direct_messages" . direct_messages)
("direct_messages_sent" . direct_messages_sent)
("friends" . friends)
("home" . home)
("mentions" . mentions)
("public" . public)
("replies" . replies)
("retweeted_by_me" . retweeted_by_me)
("retweeted_to_me" . retweeted_to_me)
("retweets_of_me" . retweets_of_me))))
(cond
((assoc type alist)
(let ((first-spec (list (cdr (assoc type alist)))))
(cons first-spec following)))
((string= type "search")
(if (string-match "^:search/\\(\\(.*?[^\\]\\)??\\(\\\\\\\\\\)*\\)??/"
str)
(let* ((escaped-query (or (match-string 1 str) ""))
(query (replace-regexp-in-string "\\\\/" "/"
escaped-query nil t))
(rest (substring str (match-end 0))))
(if (< 0 (length escaped-query))
`((search ,query) . ,rest)
(error "\"%s\" has no valid regexp" str)
nil))))
((string= type "filter")
(if (string-match "^:filter/\\(\\(.*?[^\\]\\)??\\(\\\\\\\\\\)*\\)??/"
str)
(let* ((escaped-regexp (or (match-string 1 str) ""))
(regexp (replace-regexp-in-string "\\\\/" "/"
escaped-regexp nil t))
(following (substring str (match-end 0)))
(pair (twittering-extract-timeline-spec
following unresolved-aliases))
(spec (car pair))
(rest (cdr pair)))
`((filter ,regexp ,spec) . ,rest))
(error "\"%s\" has no valid regexp" str)
nil))
(t
(error "\"%s\" is invalid as a timeline spec" str)
nil))))
((string-match "^\\$\\([a-zA-Z0-9_-]+\\)\\(?:(\\([^)]*\\))\\)?" str)
(let* ((name (match-string 1 str))
(rest (substring str (match-end 0)))
(value (cdr-safe (assoc name twittering-timeline-spec-alias)))
(arg (match-string 2 str)))
(if (member name unresolved-aliases)
(error "Alias \"%s\" includes a recursive reference" name)
(cond
((stringp value)
(twittering-extract-timeline-spec
(concat value rest)
(cons name unresolved-aliases)))
((functionp value)
(twittering-extract-timeline-spec
(funcall value arg)
(cons name unresolved-aliases)))
(t
(error "Alias \"%s\" is undefined" name))))))
((string-match "^(" str)
(let ((rest (concat "+" (substring str (match-end 0))))
(result '()))
(while (and rest (string-match "^\\+" rest))
(let* ((spec-string (substring rest (match-end 0)))
(pair (twittering-extract-timeline-spec
spec-string unresolved-aliases))
(spec (car pair))
(next-rest (cdr pair)))
(setq result (cons spec result))
(setq rest next-rest)))
(if (and rest (string-match "^)" rest))
(let ((spec-list
(apply 'append
(mapcar (lambda (x) (if (eq 'merge (car x))
(cdr x)
(list x)))
(reverse result)))))
(if (= 1 (length spec-list))
`(,(car spec-list) . ,(substring rest 1))
`((merge ,@spec-list) . ,(substring rest 1))))
(if rest
;; The string following the opening parenthesis `('
;; can be interpreted without errors,
;; but there is no corresponding closing parenthesis.
(error "\"%s\" lacks a closing parenthesis" str))
;; Does not display additional error messages if an error
;; occurred on interpreting the string following
;; the opening parenthesis `('.
nil)))
(t
(error "\"%s\" is invalid as a timeline spec" str)
nil)
))
(defun twittering-string-to-timeline-spec (spec-str)
"Convert SPEC-STR into a timeline spec.
Return nil if SPEC-STR is invalid as a timeline spec."
(let ((result-pair (twittering-extract-timeline-spec spec-str)))
(if (and result-pair (string= "" (cdr result-pair)))
(car result-pair)
nil)))
(defun twittering-timeline-spec-primary-p (spec)
"Return non-nil if SPEC is a primary timeline spec.
`primary' means that the spec is not a composite timeline spec such as
`filter' and `merge'."
(let ((primary-spec-types
'(user list
direct_messages direct_messages_sent
friends home mentions public replies
search
retweeted_by_me retweeted_to_me retweets_of_me))
(type (car spec)))
(memq type primary-spec-types)))
(defun twittering-equal-string-as-timeline (spec-str1 spec-str2)
"Return non-nil if SPEC-STR1 equals SPEC-STR2 as a timeline spec."
(if (and (stringp spec-str1) (stringp spec-str2))
(let ((spec1 (twittering-string-to-timeline-spec spec-str1))
(spec2 (twittering-string-to-timeline-spec spec-str2)))
(equal spec1 spec2))
nil))
(defun twittering-timeline-spec-to-host-method (spec)
(if (twittering-timeline-spec-primary-p spec)
(let ((type (car spec))
(value (cdr spec)))
(cond
((eq type 'user)
(let ((username (car value)))
`("api.twitter.com"
,(concat "1/statuses/user_timeline/" username))))
((eq type 'list)
(let ((username (car value))
(list-name (cadr value)))
`("api.twitter.com"
,(concat "1/" username "/lists/" list-name "/statuses"))))
((or (eq type 'direct_messages)
(eq type 'direct_messages_sent))
(error "%s has not been supported yet" type))
((eq type 'friends)
'("api.twitter.com" "1/statuses/friends_timeline"))
((eq type 'home)
'("api.twitter.com" "1/statuses/home_timeline"))
((eq type 'mentions)
'("api.twitter.com" "1/statuses/mentions"))
((eq type 'public)
'("api.twitter.com" "1/statuses/public_timeline"))
((eq type 'replies)
'("api.twitter.com" "1/statuses/replies"))
((eq type 'retweeted_by_me)
'("api.twitter.com" "1/statuses/retweeted_by_me"))
((eq type 'retweeted_to_me)
'("api.twitter.com" "1/statuses/retweeted_to_me"))
((eq type 'retweets_of_me)
'("api.twitter.com" "1/statuses/retweets_of_me"))
((eq type 'search)
(let ((word (car value)))
`("search.twitter.com" "search" ,word)))
(t
(error "Invalid timeline spec")
nil)))
nil))
(defun twittering-host-method-to-timeline-spec (host method &optional word)
(cond
((or (not (stringp host)) (not (stringp method))) nil)
((string= host "api.twitter.com")
(cond
((string= method "1/statuses/public_timeline") '(public_timeline))
((string= method "1/statuses/home_timeline") '(home))
((string= method "1/statuses/friends_timeline") '(friends))
((string= method "1/statuses/user_timeline")
`(user ,(twittering-get-username)))
((string-match "^1/statuses/user_timeline/\\(.+\\)$" method)
`(user ,(match-string-no-properties 1 method)))
((string= method "1/statuses/mentions") '(mentions))
((string= method "1/statuses/replies") '(replies))
((string= method "1/statuses/retweeted_by_me") '(retweeted_by_me))
((string= method "1/statuses/retweeted_to_me") '(retweeted_to_me))
((string= method "1/statuses/retweets_of_me") '(retweets_of_me))
((string-match "^1/\\([^/]+\\)/lists/\\([^/]+\\)/statuses" method)
(let ((username (match-string-no-properties 1 method))
(listname (match-string-no-properties 2 method)))
`(list ,username ,listname)))
(t nil)))
((string= host "search.twitter.com")
`(search ,word))
(t nil)))
(defun twittering-add-timeline-history (&optional timeline-spec)
(let ((spec-string
(if timeline-spec
(twittering-timeline-spec-to-string timeline-spec t)
(twittering-current-timeline-spec-string))))
(when spec-string
(when (or (null twittering-timeline-history)
(not (string= spec-string (car twittering-timeline-history))))
(if (functionp 'add-to-history)