all messages for Emacs-related lists mirrored at yhetil.org
 help / color / mirror / code / Atom feed
blob 76b5fe3da2296ecb83ba21f58c87b2e8a31b456f 39043 bytes (raw)
name: lisp/msb.el 	 # note: path name is non-authoritative(*)

   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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
 
;;; msb.el --- customizable buffer-selection with multiple menus -*- lexical-binding: t -*-

;; Copyright (C) 1993-1995, 1997-2016 Free Software Foundation, Inc.

;; Author: Lars Lindberg <lars.lindberg@home.se>
;; Maintainer: emacs-devel@gnu.org
;; Created: 8 Oct 1993
;; Lindberg's last update version: 3.34
;; Keywords: mouse buffer menu

;; This file is part of GNU Emacs.

;; GNU Emacs 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 3 of the License, or
;; (at your option) any later version.

;; GNU Emacs 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.  If not, see <http://www.gnu.org/licenses/>.

;;; Commentary:

;; Purpose of this package:
;;   1. Offer a function for letting the user choose buffer,
;;      not necessarily for switching to it.
;;   2. Make a better mouse-buffer-menu.  This is done as a global
;;      minor mode, msb-mode.
;;
;; Customization:
;;   Look at the variable `msb-menu-cond' for deciding what menus you
;;   want.  It's not that hard to customize, despite my not-so-good
;;   doc-string.  Feel free to send me a better doc-string.
;;   There are some constants for you to try here:
;;   msb--few-menus
;;   msb--very-many-menus (default)
;;
;;   Look at the variable `msb-item-handling-function' for customization
;;   of the appearance of every menu item.  Try for instance setting
;;   it to `msb-alon-item-handler'.
;;
;;   Look at the variable `msb-item-sort-function' for customization
;;   of sorting the menus.  Set it to t for instance, which means no
;;   sorting - you will get latest used buffer first.
;;
;;   Also check out the variable `msb-display-invisible-buffers-p'.

;; Known bugs:
;; - Files-by-directory
;;   + No possibility to show client/changed buffers separately.
;;   + All file buffers only appear in a file sub-menu, they will
;;     for instance not appear in the Mail sub-menu.

;; Future enhancements:

;;; Thanks goes to
;;  Mark Brader <msb@sq.com>
;;  Jim Berry <m1jhb00@FRB.GOV>
;;  Hans Chalupsky <hans@cs.Buffalo.EDU>
;;  Larry Rosenberg <ljr@ictv.com>
;;  Will Henney <will@astroscu.unam.mx>
;;  Jari Aalto <jaalto@tre.tele.nokia.fi>
;;  Michael Kifer <kifer@sbkifer.cs.sunysb.edu>
;;  Gael Marziou <gael@gnlab030.grenoble.hp.com>
;;  Dave Gillespie <daveg@thymus.synaptics.com>
;;  Alon Albert <alon@milcse.rtsg.mot.com>
;;  Kevin Broadey, <KevinB@bartley.demon.co.uk>
;;  Ake Stenhof <ake@cadpoint.se>
;;  Richard Stallman <rms@gnu.org>
;;  Steve Fisk <fisk@medved.bowdoin.edu>

;; This version turned into a global minor mode and subsequently
;; hacked on by Dave Love.
;;; Code:

(eval-when-compile (require 'cl-lib))

;;
;; Some example constants to be used for `msb-menu-cond'.  See that
;; variable for more information.  Please note that if the condition
;; returns `multi', then the buffer can appear in several menus.
;;
(defconst msb--few-menus
  '(((and (boundp 'server-buffer-clients)
	  server-buffer-clients
	  'multi)
     3030
     "Clients (%d)")
    ((and msb-display-invisible-buffers-p
	  (msb-invisible-buffer-p)
	  'multi)
     3090
     "Invisible buffers (%d)")
    ((eq major-mode 'dired-mode)
     2010
     "Dired (%d)"
     msb-dired-item-handler
     msb-sort-by-directory)
    ((eq major-mode 'Man-mode)
     4090
     "Manuals (%d)")
    ((eq major-mode 'w3-mode)
     4020
     "WWW (%d)")
    ((or (memq major-mode
	       '(rmail-mode rmail-edit-mode vm-summary-mode vm-mode mail-mode))
	 (memq major-mode '(mh-letter-mode mh-show-mode mh-folder-mode))
	 (memq major-mode
	       '(gnus-summary-mode message-mode gnus-group-mode
	         gnus-article-mode score-mode gnus-browse-killed-mode)))
     4010
     "Mail (%d)")
    ((not buffer-file-name)
     4099
     "Buffers (%d)")
    ('no-multi
     1099
     "Files (%d)")))

(defconst msb--very-many-menus
  '(((and (boundp 'server-buffer-clients)
	  server-buffer-clients
	  'multi)
     1010
     "Clients (%d)")
    ((and (boundp 'vc-mode) vc-mode 'multi)
     1020
     "Version Control (%d)")
    ((and buffer-file-name
	  (buffer-modified-p)
	  'multi)
     1030
     "Changed files (%d)")
    ((and (get-buffer-process (current-buffer))
	  'multi)
     1040
     "Processes (%d)")
    ((and msb-display-invisible-buffers-p
	  (msb-invisible-buffer-p)
	  'multi)
     1090
     "Invisible buffers (%d)")
    ((eq major-mode 'dired-mode)
     2010
     "Dired (%d)"
     ;; Note this different menu-handler
     msb-dired-item-handler
     ;; Also note this item-sorter
     msb-sort-by-directory)
    ((eq major-mode 'Man-mode)
     5030
     "Manuals (%d)")
    ((eq major-mode 'w3-mode)
     5020
     "WWW (%d)")
    ((or (memq major-mode
	       '(rmail-mode rmail-edit-mode vm-summary-mode vm-mode mail-mode))
	 (memq major-mode '(mh-letter-mode mh-show-mode mh-folder-mode))
	 (memq major-mode '(gnus-summary-mode message-mode gnus-group-mode
			    gnus-article-mode score-mode
			    gnus-browse-killed-mode)))
     5010
     "Mail (%d)")
    ;; Catchup for all non-file buffers
    ((and (not buffer-file-name)
	  'no-multi)
     5099
     "Other non-file buffers (%d)")
    ((and (string-match "/\\.[^/]*$" buffer-file-name)
	  'multi)
     3090
     "Hidden Files (%d)")
    ((memq major-mode '(c-mode c++-mode))
     3010
     "C/C++ Files (%d)")
    ((eq major-mode 'emacs-lisp-mode)
     3020
     "Elisp Files (%d)")
    ((eq major-mode 'latex-mode)
     3030
     "LaTeX Files (%d)")
    ('no-multi
     3099
     "Other files (%d)")))

;;;
;;; Customizable variables
;;;

(defgroup msb nil
  "Customizable buffer-selection with multiple menus."
  :prefix "msb-"
  :group 'mouse)

(defun msb-custom-set (symbol value)
  "Set the value of custom variables for msb."
  (set symbol value)
  (if (and (featurep 'msb) msb-mode)
      ;; wait until package has been loaded before bothering to update
      ;; the buffer lists.
      (msb-menu-bar-update-buffers t)))

(defcustom msb-menu-cond msb--very-many-menus
  "List of criteria for splitting the mouse buffer menu.
The elements in the list should be of this type:
 (CONDITION MENU-SORT-KEY MENU-TITLE ITEM-HANDLING-FN ITEM-SORT-FN).

When making the split, the buffers are tested one by one against the
CONDITION, just like a Lisp cond: When hitting a true condition, the
other criteria are *not* tested and the buffer name will appear in the
menu with the menu-title corresponding to the true condition.

If the condition returns the symbol `multi', then the buffer will be
added to this menu *and* tested for other menus too.  If it returns
`no-multi', then the buffer will only be added if it hasn't been added
to any other menu.

During this test, the buffer in question is the current buffer, and
the test is surrounded by calls to `save-excursion' and
`save-match-data'.

The categories are sorted by MENU-SORT-KEY.  Smaller keys are on top.
A value of nil means don't display this menu.

MENU-TITLE is really a format.  If you add %d in it, the %d is
replaced with the number of items in that menu.

ITEM-HANDLING-FN is optional.  If it is supplied and is a function,
then it is used for displaying the items in that particular buffer
menu, otherwise the function pointed out by
`msb-item-handling-function' is used.

ITEM-SORT-FN is also optional.
If it is not supplied, the function pointed out by
`msb-item-sort-function' is used.
If it is nil, then no sort takes place and the buffers are presented
in least-recently-used order.
If it is t, then no sort takes place and the buffers are presented in
most-recently-used order.
If it is supplied and non-nil and not t than it is used for sorting
the items in that particular buffer menu.

Note1: There should always be a `catch-all' as last element, in this
list.  That is an element like (t TITLE ITEM-HANDLING-FUNCTION).
Note2: A buffer menu appears only if it has at least one buffer in it.
Note3: If you have a CONDITION that can't be evaluated you will get an
error every time you do \\[msb]."
  :type `(choice (const :tag "long" :value ,msb--very-many-menus)
		 (const :tag "short" :value ,msb--few-menus)
		 (sexp :tag "user"))
  :set 'msb-custom-set
  :group 'msb)

(defcustom msb-modes-key 4000
  "The sort key for files sorted by mode."
  :type 'integer
  :set 'msb-custom-set
  :group 'msb
  :version "20.3")

(defcustom msb-separator-diff 100
  "Non-nil means use separators.
The separators will appear between all menus that have a sorting key
that differs by this value or more."
  :type '(choice integer (const nil))
  :set 'msb-custom-set
  :group 'msb)

(defvar msb-files-by-directory-sort-key 0
  "The sort key for files sorted by directory.")

(defcustom msb-max-menu-items 15
  "The maximum number of items in a menu.
If this variable is set to 15 for instance, then the submenu will be
split up in minor parts, 15 items each.  A value of nil means no limit."
  :type '(choice integer (const nil))
  :set 'msb-custom-set
  :group 'msb)

(defcustom msb-max-file-menu-items 10
  "The maximum number of items from different directories.

When the menu is of type `file by directory', this is the maximum
number of buffers that are clumped together from different
directories.

Set this to 1 if you want one menu per directory instead of clumping
them together.

If the value is not a number, then the value 10 is used."
  :type 'integer
  :set 'msb-custom-set
  :group 'msb)

(defcustom msb-most-recently-used-sort-key -1010
  "Where should the menu with the most recently used buffers be placed?"
  :type 'integer
  :set 'msb-custom-set
  :group 'msb)

(defcustom msb-display-most-recently-used 15
  "How many buffers should be in the most-recently-used menu.
No buffers at all if less than 1 or nil (or any non-number)."
  :type 'integer
  :set 'msb-custom-set
  :group 'msb)

(defcustom msb-most-recently-used-title "Most recently used (%d)"
  "The title for the most-recently-used menu."
  :type 'string
  :set 'msb-custom-set
  :group 'msb)

(defvar msb-horizontal-shift-function (lambda () 0)
  "Function that specifies how many pixels to shift the top menu leftwards.")

(defcustom msb-display-invisible-buffers-p nil
  "Show invisible buffers or not.
Non-nil means that the buffer menu should include buffers that have
names that starts with a space character."
  :type 'boolean
  :set 'msb-custom-set
  :group 'msb)

(defvar msb-item-handling-function 'msb-item-handler
  "The appearance of a buffer menu.

The default function to call for handling the appearance of a menu
item.  It should take two arguments, BUFFER and MAX-BUFFER-NAME-LENGTH,
where the latter is the max length of all buffer names.

The function should return the string to use in the menu.

When the function is called, BUFFER is the current buffer.  This
function is called for items in the variable `msb-menu-cond' that have
nil as ITEM-HANDLING-FUNCTION.  See `msb-menu-cond' for more
information.")

(defcustom msb-item-sort-function 'msb-sort-by-name
  "The order of items in a buffer menu.

The default function to call for handling the order of items in a menu
item.  This function is called like a sort function.  The items look
like (ITEM-NAME . BUFFER).

ITEM-NAME is the name of the item that will appear in the menu.
BUFFER is the buffer, this is not necessarily the current buffer.

Set this to nil or t if you don't want any sorting (faster)."
  :type '(choice (const msb-sort-by-name)
		 (const :tag "Newest first" t)
		 (const :tag "Oldest first" nil))
  :set 'msb-custom-set
  :group 'msb)

(defcustom msb-files-by-directory nil
  "Non-nil means that files should be sorted by directory.
This is instead of the groups in `msb-menu-cond'."
  :type 'boolean
  :set 'msb-custom-set
  :group 'msb)

(define-obsolete-variable-alias 'msb-after-load-hooks
  'msb-after-load-hook "24.1")

(defcustom msb-after-load-hook nil
  "Hook run after the msb package has been loaded."
  :type 'hook
  :set 'msb-custom-set
  :group 'msb)

;;;
;;; Internal variables
;;;

;; The last calculated menu.
(defvar msb--last-buffer-menu nil)

;; If this is non-nil, then it is a string that describes the error.
(defvar msb--error nil)

;;;
;;; Some example function to be used for `msb-item-handling-function'.
;;;
(defun msb-item-handler (_buffer &optional _maxbuf)
  "Create one string item, concerning BUFFER, for the buffer menu.
The item looks like:
*% <buffer-name>
The `*' appears only if the buffer is marked as modified.
The `%' appears only if the buffer is read-only.
Optional second argument MAXBUF is completely ignored."
  (let ((name (buffer-name))
	(modified (if (buffer-modified-p) "*" " "))
	(read-only (if buffer-read-only "%" " ")))
    (format "%s%s %s" modified read-only name)))


;; `dired' can be called with a list of the form (directory file1 file2 ...)
;; which causes `dired-directory' to be in the same form.
(defun msb--dired-directory ()
  (cond ((stringp dired-directory)
	 (abbreviate-file-name (expand-file-name dired-directory)))
	((consp dired-directory)
	 (abbreviate-file-name (expand-file-name (car dired-directory))))
	(t
	 (error "Unknown type of `dired-directory' in buffer %s"
		(buffer-name)))))

(defun msb-dired-item-handler (_buffer &optional _maxbuf)
  "Create one string item, concerning a dired BUFFER, for the buffer menu.
The item looks like:
*% <buffer-name>
The `*' appears only if the buffer is marked as modified.
The `%' appears only if the buffer is read-only.
Optional second argument MAXBUF is completely ignored."
  (let ((name (msb--dired-directory))
	(modified (if (buffer-modified-p) "*" " "))
	(read-only (if buffer-read-only "%" " ")))
    (format "%s%s %s" modified read-only name)))

(defun msb-alon-item-handler (buffer maxbuf)
  "Create one string item for the buffer menu.
The item looks like:
<buffer-name> *%# <file-name>
The `*' appears only if the buffer is marked as modified.
The `%' appears only if the buffer is read-only.
The `#' appears only version control file (SCCS/RCS)."
  (format (format "%%%ds  %%s%%s%%s  %%s" maxbuf)
          (buffer-name buffer)
          (if (buffer-modified-p) "*" " ")
          (if buffer-read-only "%" " ")
          (if (and (boundp 'vc-mode) vc-mode) "#" " ")
          (or buffer-file-name "")))

;;;
;;; Some example function to be used for `msb-item-sort-function'.
;;;
(defun msb-sort-by-name (item1 item2)
  "Sort the items ITEM1 and ITEM2 by their `buffer-name'.
An item looks like (NAME . BUFFER)."
  (string-lessp (buffer-name (cdr item1))
		(buffer-name (cdr item2))))


(defun msb-sort-by-directory (item1 item2)
  "Sort the items ITEM1 and ITEM2 by directory name.  Made for dired.
An item look like (NAME . BUFFER)."
  (string-lessp (with-current-buffer (cdr item1)
                  (msb--dired-directory))
		(with-current-buffer (cdr item2)
                  (msb--dired-directory))))

;;;
;;; msb
;;;
;;; This function can be used instead of (mouse-buffer-menu EVENT)
;;; function in "mouse.el".
;;;
(defun msb (event)
  "Pop up several menus of buffers for selection with the mouse.
This command switches buffers in the window that you clicked on, and
selects that window.

See the function `mouse-select-buffer' and the variable
`msb-menu-cond' for more information about how the menus are split."
  (interactive "e")
  (let ((old-window (selected-window))
	(window (posn-window (event-start event)))
	early-release)
    (unless (framep window) (select-window window))
    ;; This `sit-for' magically makes the menu stay up if the mouse
    ;; button is released within 0.1 second.
    (setq early-release (not (sit-for 0.1 t)))
    (let ((buffer (mouse-select-buffer event)))
      (if buffer
	  (switch-to-buffer buffer)
	(select-window old-window)))
    ;; If the above `sit-for' was interrupted by a mouse-up, avoid
    ;; generating a drag event.
    (if (and early-release (memq 'down (event-modifiers last-input-event)))
	(discard-input)))
  nil)

;;;
;;; Some supportive functions
;;;
(defun msb-invisible-buffer-p (&optional buffer)
  "Return t if optional BUFFER is an \"invisible\" buffer.
If the argument is left out or nil, then the current buffer is considered."
  (and (> (length (buffer-name buffer)) 0)
       (eq ?\s (aref (buffer-name buffer) 0))))

(defun msb--strip-dir (dir)
  "Strip one hierarchy level from the end of DIR."
  (file-name-directory (directory-file-name dir)))

;; Create an alist with all buffers from LIST that lies under the same
;; directory will be in the same item as the directory name.
;; ((DIR1 . (BUFFER-1 BUFFER-2 ...)) (DIR2 . (BUFFER-K BUFFER-K+1...)) ...)
(defun msb--init-file-alist (list)
  (let ((buffer-alist
	 ;; Make alist that looks like
	 ;; ((DIR-1 BUFFER-1) (DIR-2 BUFFER-2) ...)
	 ;; sorted on DIR-x
	 (sort
	  (apply #'nconc
		 (mapcar
		  (lambda (buffer)
		    (let ((file-name (expand-file-name
				      (buffer-file-name buffer))))
		      (when file-name
			(list (cons (msb--strip-dir file-name) buffer)))))
		  list))
	  (lambda (item1 item2)
	    (string< (car item1) (car item2))))))
    ;; Now clump buffers together that have the same directory name
    ;; Make alist that looks like
    ;; ((DIR1 . (BUFFER-1 BUFFER-2 ...)) (DIR2 . (BUFFER-K)) ...)
    (let ((dir nil)
	  (buffers nil))
      (nconc
       (apply
	#'nconc
	(mapcar (lambda (item)
		  (cond
		   ((equal dir (car item))
		    ;; The same dir as earlier:
		    ;; Add to current list of buffers.
		    (push (cdr item) buffers)
		    ;; This item should not be added to list
		    nil)
		   (t
		    ;; New dir
		    (let ((result (and dir (cons dir buffers))))
		      (setq dir (car item))
		      (setq buffers (list (cdr item)))
		      ;; Add the last result the list.
		      (and result (list result))))))
		buffer-alist))
       ;; Add the last result to the list
       (list (cons dir buffers))))))

(defun msb--format-title (top-found-p dir number-of-items)
  "Format a suitable title for the menu item."
  (format (if top-found-p "%s... (%d)" "%s (%d)")
	  (abbreviate-file-name dir) number-of-items))

;; Variables for debugging.
(defvar msb--choose-file-menu-list)
(defvar msb--choose-file-menu-arg-list)

(defun msb--choose-file-menu (list)
  "Choose file-menu with respect to directory for every buffer in LIST."
  (setq msb--choose-file-menu-arg-list list)
  (let ((buffer-alist (msb--init-file-alist list))
	(final-list nil)
	(max-clumped-together (if (numberp msb-max-file-menu-items)
				  msb-max-file-menu-items
				10))
	(top-found-p nil)
	(last-dir nil)
	first rest dir buffers old-dir)
    ;; Prepare for looping over all items in buffer-alist
    (setq first (car buffer-alist)
	  rest (cdr buffer-alist)
	  dir (car first)
	  buffers (cdr first))
    (setq msb--choose-file-menu-list (copy-sequence rest))
    ;; This big loop tries to clump buffers together that have a
    ;; similar name. Remember that buffer-alist is sorted based on the
    ;; directory name of the buffers' visited files.
    (while rest
      (let ((found-p nil)
	    (tmp-rest rest)
            item)
	(setq item (car tmp-rest))
	;; Clump together the "rest"-buffers that have a dir that is
	;; a subdir of the current one.
	(while (and tmp-rest
		    (<= (length buffers) max-clumped-together)
		    (>= (length (car item)) (length dir))
		    ;; `completion-ignore-case' seems to default to t
		    ;; on the systems with case-insensitive file names.
		    (eq t (compare-strings dir 0 nil
					   (car item) 0 (length dir)
					   completion-ignore-case)))
	  (setq found-p t)
	  (setq buffers (append buffers (cdr item))) ;nconc is faster than append
	  (setq tmp-rest (cdr tmp-rest)
		item (car tmp-rest)))
	(cond
	 ((> (length buffers) max-clumped-together)
	  ;; Oh, we failed. Too many buffers clumped together.
	  ;; Just use the original ones for the result.
	  (setq last-dir (car first))
	  (push (cons (msb--format-title top-found-p
					 (car first)
					 (length (cdr first)))
		      (cdr first))
		final-list)
	  (setq top-found-p nil)
	  (setq first (car rest)
		rest (cdr rest)
		dir (car first)
		buffers (cdr first)))
	 (t
	  ;; The first pass of clumping together worked out, go ahead
	  ;; with this result.
	  (when found-p
	    (setq top-found-p t)
	    (setq first (cons dir buffers)
		  rest tmp-rest))
	  ;; Now see if we can clump more buffers together if we go up
	  ;; one step in the file hierarchy.
	  ;; If dir isn't changed by msb--strip-dir, we are looking
	  ;; at the machine name component of an ange-ftp filename.
	  (setq old-dir dir)
	  (setq dir (msb--strip-dir dir)
		buffers (cdr first))
	  (if (equal old-dir dir)
	      (setq last-dir dir))
	  (when (and last-dir
		     (or (and (>= (length dir) (length last-dir))
			      (eq t (compare-strings
				     last-dir 0 nil dir 0
				     (length last-dir)
				     completion-ignore-case)))
			 (and (< (length dir) (length last-dir))
			      (eq t (compare-strings
				     dir 0 nil last-dir 0 (length dir)
				     completion-ignore-case)))))
	    ;; We have reached the same place in the file hierarchy as
	    ;; the last result, so we should quit at this point and
	    ;; take what we have as result.
	    (push (cons (msb--format-title top-found-p
					   (car first)
					   (length (cdr first)))
			(cdr first))
		  final-list)
	    (setq top-found-p nil)
	    (setq first (car rest)
		  rest (cdr rest)
		  dir (car first)
		  buffers (cdr first)))))))
    ;; Now take care of the last item.
    (when first
      (push (cons (msb--format-title top-found-p
				     (car first)
				     (length (cdr first)))
		  (cdr first))
	    final-list))
    (setq top-found-p nil)
    (nreverse final-list)))

(defun msb--create-function-info (menu-cond-elt)
  "Create a vector from an element MENU-COND-ELT of `msb-menu-cond'.
This takes the form:
[BUFFER-LIST-VARIABLE CONDITION MENU-SORT-KEY MENU-TITLE ITEM-HANDLER SORTER]
See `msb-menu-cond' for a description of its elements."
  (let* ((list-symbol (make-symbol "-msb-buffer-list"))
	 (tmp-ih (and (> (length menu-cond-elt) 3)
		      (nth 3 menu-cond-elt)))
	 (item-handler (if (and tmp-ih (fboundp tmp-ih))
			   tmp-ih
			 msb-item-handling-function))
	 (tmp-s (if (> (length menu-cond-elt) 4)
		    (nth 4 menu-cond-elt)
		  msb-item-sort-function))
	 (sorter (if (or (fboundp tmp-s)
			 (null tmp-s)
			 (eq tmp-s t))
		     tmp-s
		   msb-item-sort-function)))
    (when (< (length menu-cond-elt) 3)
      (error "Wrong format of msb-menu-cond"))
    (when (and (> (length menu-cond-elt) 3)
	       (not (fboundp tmp-ih)))
      (signal 'invalid-function (list tmp-ih)))
    (when (and (> (length menu-cond-elt) 4)
	       tmp-s
	       (not (fboundp tmp-s))
	       (not (eq tmp-s t)))
      (signal 'invalid-function (list tmp-s)))
    (set list-symbol ())
    (vector list-symbol			;BUFFER-LIST-VARIABLE
	    (nth 0 menu-cond-elt)	;CONDITION
	    (nth 1 menu-cond-elt)	;SORT-KEY
	    (nth 2 menu-cond-elt)	;MENU-TITLE
	    item-handler		;ITEM-HANDLER
	    sorter)			;SORTER
    ))

;; This defsubst is only used in `msb--choose-menu' below.  It was
;; pulled out merely to make the code somewhat clearer.  The indentation
;; level was too big.
(defsubst msb--collect (function-info-vector)
  (let ((result nil)
	(multi-flag nil)
	function-info-list)
    (setq function-info-list
	  (cl-loop for fi
                   across function-info-vector
                   if (and (setq result
                                 (eval (aref fi 1))) ;Test CONDITION
                           (not (and (eq result 'no-multi)
                                     multi-flag))
                           (progn (when (eq result 'multi)
                                    (setq multi-flag t))
                                  t))
                   collect fi
                   until (and result
                              (not (eq result 'multi)))))
    (when (and (not function-info-list)
	       (not result))
      (error "No catch-all in msb-menu-cond!"))
    function-info-list))

(defun msb--add-to-menu (buffer function-info max-buffer-name-length)
  "Add BUFFER to the menu depicted by FUNCTION-INFO.
All side-effects.  Adds an element of form (BUFFER-TITLE . BUFFER)
to the buffer-list variable in FUNCTION-INFO."
  (let ((list-symbol (aref function-info 0))) ;BUFFER-LIST-VARIABLE
    ;; Here comes the hairy side-effect!
    (set list-symbol
	 (cons (cons (funcall (aref function-info 4) ;ITEM-HANDLER
			      buffer
			      max-buffer-name-length)
		     buffer)
	       (eval list-symbol)))))

(defsubst msb--choose-menu (buffer function-info-vector max-buffer-name-length)
  "Select the appropriate menu for BUFFER."
  ;; This is all side-effects, folks!
  ;; This should be optimized.
  (unless (and (not msb-display-invisible-buffers-p)
	       (msb-invisible-buffer-p buffer))
    (condition-case nil
	(with-current-buffer buffer
	  ;; Menu found.  Add to this menu
	  (dolist (info (msb--collect function-info-vector))
	    (msb--add-to-menu buffer info max-buffer-name-length)))
      (error (unless msb--error
	       (setq msb--error
		     (format-message
		      "In msb-menu-cond, error for buffer `%s'."
		      (buffer-name buffer)))
	       (error "%s" msb--error))))))

(defun msb--create-sort-item (function-info)
  "Return (SORT-KEY TITLE . BUFFER-LIST) or nil if the buffer-list is empty."
  (let ((buffer-list (eval (aref function-info 0))))
    (when buffer-list
      (let ((sorter (aref function-info 5)) ;SORTER
	    (sort-key (aref function-info 2))) ;MENU-SORT-KEY
	(when sort-key
	  (cons sort-key
		(cons (format (aref function-info 3) ;MENU-TITLE
			      (length buffer-list))
		      (cond
		       ((null sorter)
			buffer-list)
		       ((eq sorter t)
			(nreverse buffer-list))
		       (t
			(sort buffer-list sorter))))))))))

(defun msb--aggregate-alist (alist same-predicate sort-predicate)
  "Return ALIST as a sorted, aggregated alist.

In the result all items with the same car element (according to
SAME-PREDICATE) are aggregated together.  The alist is first sorted by
SORT-PREDICATE.

Example:
\(msb--aggregate-alist
 \\='((a . a1) (a . a2) (b . b1) (c . c3) (a . a4) (a . a3) (b . b3) (b . b2))
 (function string=)
 (lambda (item1 item2)
   (string< (symbol-name item1) (symbol-name item2))))
results in
\((a a1 a2 a4 a3) (b b1 b3 b2) (c c3))"
  (when (not (null alist))
    (let (same
	  tmp-old-car
	  tmp-same
	  (first-time-p t)
	  old-car)
      (nconc
       (apply #'nconc
	      (mapcar
	       (lambda (item)
		 (cond
		  (first-time-p
		   (push (cdr item) same)
		   (setq first-time-p nil)
		   (setq old-car (car item))
		   nil)
		  ((funcall same-predicate (car item) old-car)
		   (push (cdr item) same)
		   nil)
		  (t
		   (setq tmp-same same
			 tmp-old-car old-car)
		   (setq same (list (cdr item))
			 old-car (car item))
		   (list (cons tmp-old-car (nreverse tmp-same))))))
	       (sort alist (lambda (item1 item2)
			     (funcall sort-predicate
                                      (car item1) (car item2))))))
       (list (cons old-car (nreverse same)))))))


(defun msb--mode-menu-cond ()
  (let ((key msb-modes-key))
    (mapcar (lambda (item)
	      (cl-incf key)
	      (list `( eq major-mode (quote ,(car item)))
		    key
		    (concat (cdr item) " (%d)")))
	    (sort
	     (let ((mode-list nil))
	       (dolist (buffer (cdr (buffer-list)))
		 (with-current-buffer buffer
		   (when (and (not (msb-invisible-buffer-p))
			      (not (assq major-mode mode-list)))
		     (push (cons major-mode
                                 (format-mode-line mode-name nil nil buffer))
			   mode-list))))
	       mode-list)
	     (lambda (item1 item2)
	       (string< (cdr item1) (cdr item2)))))))

(defun msb--most-recently-used-menu (max-buffer-name-length)
  "Return a list for the most recently used buffers.
It takes the form ((TITLE . BUFFER-LIST)...)."
  (when (and (numberp msb-display-most-recently-used)
 	     (> msb-display-most-recently-used 0))
    (let* ((buffers (cdr (buffer-list)))
	   (most-recently-used
	    (cl-loop with n = 0
                     for buffer in buffers
                     if (with-current-buffer buffer
                          (and (not (msb-invisible-buffer-p))
                               (not (eq major-mode 'dired-mode))))
                     collect (with-current-buffer buffer
                               (cons (funcall msb-item-handling-function
                                              buffer
                                              max-buffer-name-length)
                                     buffer))
                     and do (cl-incf n)
                     until (>= n msb-display-most-recently-used))))
      (cons (if (stringp msb-most-recently-used-title)
		(format msb-most-recently-used-title
			(length most-recently-used))
	      (signal 'wrong-type-argument (list msb-most-recently-used-title)))
	    most-recently-used))))

(defun msb--create-buffer-menu-2 ()
  (let ((max-buffer-name-length 0)
	file-buffers
	function-info-vector)
    ;; Calculate the longest buffer name.
    (dolist (buffer (buffer-list))
      (when (or msb-display-invisible-buffers-p
		(not (msb-invisible-buffer-p)))
	(setq max-buffer-name-length
	      (max max-buffer-name-length (length (buffer-name buffer))))))
    ;; Make a list with elements of type
    ;; (BUFFER-LIST-VARIABLE
    ;;  CONDITION
    ;;  MENU-SORT-KEY
    ;;  MENU-TITLE
    ;;  ITEM-HANDLER
    ;;  SORTER)
    ;; Uses "function-global" variables:
    ;; function-info-vector
    (setq function-info-vector
	  (apply (function vector)
		 (mapcar (function msb--create-function-info)
			 (append msb-menu-cond (msb--mode-menu-cond)))))
    ;; Split the buffer-list into several lists; one list for each
    ;; criteria.  This is the most critical part with respect to time.
    (dolist (buffer (buffer-list))
      (cond ((and msb-files-by-directory
		  (buffer-file-name buffer)
		  ;; exclude ange-ftp buffers
		  ;;(not (string-match "\\/[^/:]+:"
		  ;;		   (buffer-file-name buffer)))
		  )
	     (push buffer file-buffers))
	    (t
	     (msb--choose-menu buffer
			       function-info-vector
			       max-buffer-name-length))))
    (when file-buffers
      (setq file-buffers
	    (mapcar (lambda (buffer-list)
		      `(,msb-files-by-directory-sort-key
                        ,(car buffer-list)
                        ,@(sort
                           (mapcar (lambda (buffer)
                                     (cons (with-current-buffer buffer
                                             (funcall
                                              msb-item-handling-function
                                              buffer
                                              max-buffer-name-length))
                                           buffer))
                                   (cdr buffer-list))
                           (lambda (item1 item2)
                             (string< (car item1) (car item2))))))
                    (msb--choose-file-menu file-buffers))))
    ;; Now make the menu - a list of (TITLE . BUFFER-LIST)
    (let* (menu
	   (most-recently-used
	    (msb--most-recently-used-menu max-buffer-name-length))
	   (others (nconc file-buffers
                          (cl-loop for elt
                                   across function-info-vector
                                   for value = (msb--create-sort-item elt)
                                   if value collect value))))
      (setq menu
	    (mapcar 'cdr		;Remove the SORT-KEY
		    ;; Sort the menus - not the items.
		    (msb--add-separators
		    (sort
		     ;; Get a list of (SORT-KEY TITLE . BUFFER-LIST)
		     ;; Also sorts the items within the menus.
		     (if (cdr most-recently-used)
			 (cons
			  ;; Add most recent used buffers
			  (cons msb-most-recently-used-sort-key
				most-recently-used)
			  others)
		       others)
		     (lambda (elt1 elt2)
		       (< (car elt1) (car elt2)))))))
      ;; Now make it a keymap menu
      (append
       '(keymap "Select Buffer")
       (msb--make-keymap-menu menu)
       (when msb-separator-diff
	 (list (list 'separator "--")))
       (list (cons 'toggle
		   (cons
		   (if msb-files-by-directory
			       "*Files by type*"
			     "*Files by directory*")
			   'msb--toggle-menu-type)))))))

(defun msb--create-buffer-menu ()
  (save-match-data
    (save-excursion
      (msb--create-buffer-menu-2))))

(defun msb--toggle-menu-type ()
  "Multi-purpose function for selecting a buffer with the mouse."
  (interactive)
  (setq msb-files-by-directory (not msb-files-by-directory))
  ;; This gets a warning, but it is correct,
  ;; because this file redefines menu-bar-update-buffers.
  (msb-menu-bar-update-buffers t))

(defun mouse-select-buffer (event)
  "Pop up several menus of buffers, for selection with the mouse.
Returns the selected buffer or nil if no buffer is selected.

The way the buffers are split is conveniently handled with the
variable `msb-menu-cond'."
  ;; Popup the menu and return the selected buffer.
  (when (or msb--error
	    (not msb--last-buffer-menu)
	    (not (fboundp 'frame-or-buffer-changed-p))
	    (frame-or-buffer-changed-p))
    (setq msb--error nil)
    (setq msb--last-buffer-menu (msb--create-buffer-menu)))
  (let ((position event)
	choice)
    (when (and (fboundp 'posn-x-y)
	       (fboundp 'posn-window))
      (let ((posX (car (posn-x-y (event-start event))))
	    (posY (cdr (posn-x-y (event-start event))))
	    (posWind (posn-window (event-start event))))
	;; adjust position
	(setq posX (- posX (funcall msb-horizontal-shift-function))
	      position (list (list posX posY) posWind))))
    ;; Popup the menu
    (setq choice (x-popup-menu position msb--last-buffer-menu))
    (cond
     ((eq (car choice) 'toggle)
      ;; Bring up the menu again with type toggled.
      (msb--toggle-menu-type)
      (mouse-select-buffer event))
     ((and (numberp (car choice))
	   (null (cdr choice)))
      (let ((msb--last-buffer-menu (nthcdr 2 (assq (car choice)
						   msb--last-buffer-menu))))
	(mouse-select-buffer event)))
     ((while (numberp (car choice))
	(setq choice (cdr choice))))
     ((and (stringp (car choice))
	   (null (cdr choice)))
      (car choice))
     ((null choice)
      choice)
     (t
      (error "Unknown form for buffer: %s" choice)))))

;; Add separators
(defun msb--add-separators (sorted-list)
  (if (or (not msb-separator-diff)
	  (not (numberp msb-separator-diff)))
      sorted-list
    (let ((last-key nil))
      (apply #'nconc
	     (mapcar
	      (lambda (item)
		(cond
		 ((and msb-separator-diff
		       last-key
		       (> (- (car item) last-key)
			  msb-separator-diff))
		  (setq last-key (car item))
		  (list (cons last-key 'separator)
			item))
		 (t
		  (setq last-key (car item))
		  (list item))))
	      sorted-list)))))

(defun msb--split-menus-2 (list mcount result)
  (cond
   ((> (length list) msb-max-menu-items)
    (let ((count 0)
	  sub-name
	  (tmp-list nil))
      (while (< count msb-max-menu-items)
	(push (pop list) tmp-list)
	(cl-incf count))
      (setq tmp-list (nreverse tmp-list))
      (setq sub-name (concat (car (car tmp-list)) "..."))
      (push (nconc (list mcount sub-name
			 'keymap sub-name)
		   tmp-list)
	    result))
    (msb--split-menus-2 list (1+ mcount) result))
   ((null result)
    list)
   (t
    (let (sub-name)
      (setq sub-name (concat (car (car list)) "..."))
      (push (nconc (list mcount sub-name 'keymap sub-name)
		   list)
	    result))
    (nreverse result))))

(defun msb--split-menus (list)
  (if (and (integerp msb-max-menu-items)
	   (> msb-max-menu-items 0))
      (msb--split-menus-2 list 0 nil)
    list))

(defun msb--make-keymap-menu (raw-menu)
  (let ((end 'menu-bar-select-buffer)
	(mcount 0))
    (mapcar
     (lambda (sub-menu)
       (cond
	((eq 'separator sub-menu)
	 (list 'separator "--"))
	(t
	 (let ((buffers (mapcar (lambda (item)
				  (cons (buffer-name (cdr item))
					(cons (car item) end)))
				(cdr sub-menu))))
	   (nconc (list (cl-incf mcount) (car sub-menu)
			'keymap (car sub-menu))
		  (msb--split-menus buffers))))))
     raw-menu)))

(defun msb-menu-bar-update-buffers (&optional arg)
  "A re-written version of `menu-bar-update-buffers'."
  ;; If user discards the Buffers item, play along.
  (when (and (lookup-key (current-global-map) [menu-bar buffer])
	     (or (not (fboundp 'frame-or-buffer-changed-p))
		 (frame-or-buffer-changed-p)
		 arg))
    (let ((frames (frame-list))
	  buffers-menu frames-menu)
      ;; Make the menu of buffers proper.
      (setq msb--last-buffer-menu (msb--create-buffer-menu))
      ;; Skip the `keymap' symbol.
      (setq buffers-menu (cdr msb--last-buffer-menu))
      ;; Make a Frames menu if we have more than one frame.
      (when (cdr frames)
	(let* ((frame-length (length frames))
	       (f-title  (format "Frames (%d)" frame-length)))
	  ;; List only the N most recently selected frames
	  (when (and (integerp msb-max-menu-items)
		     (> msb-max-menu-items 1)
		     (> frame-length msb-max-menu-items))
	    (setcdr (nthcdr msb-max-menu-items frames) nil))
	  (setq frames-menu
		(nconc
		 (list 'frame f-title 'keymap f-title)
		 (mapcar
		  (lambda (frame)
		    (nconc
		     (list (frame-parameter frame 'name)
			   (frame-parameter frame 'name))
                     `(lambda ()
                        (interactive) (menu-bar-select-frame ,frame))))
		  frames)))))
      (setcdr global-buffers-menu-map
	      (if (and buffers-menu frames-menu)
		  ;; Combine Frame and Buffers menus with separator between
		  (nconc (list "Buffers and Frames" frames-menu
			       (and msb-separator-diff '(separator "--")))
			 (cdr buffers-menu))
                buffers-menu)))))

;; Snarf current bindings of `mouse-buffer-menu' (normally
;; C-down-mouse-1).
(defvar msb-mode-map
  (let ((map (make-sparse-keymap "Msb")))
    (define-key map [remap mouse-buffer-menu] 'msb)
    map))

;;;###autoload
(define-minor-mode msb-mode
  "Toggle Msb mode.
With a prefix argument ARG, enable Msb mode if ARG is positive,
and disable it otherwise.  If called from Lisp, enable the mode
if ARG is omitted or nil.

This mode overrides the binding(s) of `mouse-buffer-menu' to provide a
different buffer menu using the function `msb'."
  :global t :group 'msb
  (if msb-mode
      (progn
	(add-hook 'menu-bar-update-hook 'msb-menu-bar-update-buffers)
	(remove-hook 'menu-bar-update-hook 'menu-bar-update-buffers)
	(msb-menu-bar-update-buffers t))
    (remove-hook 'menu-bar-update-hook 'msb-menu-bar-update-buffers)
    (add-hook 'menu-bar-update-hook 'menu-bar-update-buffers)
    (menu-bar-update-buffers t)))

(defun msb-unload-function ()
  "Unload the Msb library."
  (msb-mode -1)
  ;; continue standard unloading
  nil)

(provide 'msb)
(run-hooks 'msb-after-load-hook)

;;; msb.el ends here

debug log:

solving 76b5fe3 ...
found 76b5fe3 in https://yhetil.org/emacs/20160813181832.GA15753@holos.localdomain/
found 12edbbf in https://git.savannah.gnu.org/cgit/emacs.git
preparing index
index prepared:
100644 12edbbfea137d77bf22102dc269fd8061fcc2ea2	lisp/msb.el

applying [1/1] https://yhetil.org/emacs/20160813181832.GA15753@holos.localdomain/
diff --git a/lisp/msb.el b/lisp/msb.el
index 12edbbf..76b5fe3 100644

Checking patch lisp/msb.el...
Applied patch lisp/msb.el cleanly.

index at:
100644 76b5fe3da2296ecb83ba21f58c87b2e8a31b456f	lisp/msb.el

(*) Git path names are given by the tree(s) the blob belongs to.
    Blobs themselves have no identifier aside from the hash of its contents.^

Code repositories for project(s) associated with this external index

	https://git.savannah.gnu.org/cgit/emacs.git
	https://git.savannah.gnu.org/cgit/emacs/org-mode.git

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.