lisp/org-mobile.el

   1 ;;; org-mobile.el --- Code for Asymmetric Sync With a Mobile Device -*- lexical-binding: t; -*-
   2 ;; Copyright (C) 2009-2017 Free Software Foundation, Inc.
   3 ;;
   4 ;; Author: Carsten Dominik <carsten at orgmode dot org>
   5 ;; Keywords: outlines, hypermedia, calendar, wp
   6 ;; Homepage: http://orgmode.org
   7 ;;
   8 ;; This file is part of GNU Emacs.
   9 ;;
  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.
  14 ;;
  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.
  19 ;;
  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/>.
  22 ;;
  23 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  24 ;;
  25 ;;; Commentary:
  26 ;;
  27 ;; This file contains the code to interact with Richard Moreland's
  28 ;; iPhone application MobileOrg, as well as with the Android version
  29 ;; by Matthew Jones.  This code is documented in Appendix B of the Org
  30 ;; manual.  The code is not specific for the iPhone and Android - any
  31 ;; external viewer/flagging/editing application that uses the same
  32 ;; conventions could be used.
  33
  34 (require 'org)
  35 (require 'org-agenda)
  36 (require 'cl-lib)
  37
  38 (defvar org-agenda-keep-restricted-file-list)
  39
  40 ;;; Code:
  41
  42 (defgroup org-mobile nil
  43   "Options concerning support for a viewer/editor on a mobile device."
  44   :tag "Org Mobile"
  45   :group 'org)
  46
  47 (defcustom org-mobile-files '(org-agenda-files)
  48   "Files to be staged for MobileOrg.
  49 This is basically a list of files and directories.  Files will be staged
  50 directly.  Directories will be search for files with the extension `.org'.
  51 In addition to this, the list may also contain the following symbols:
  52
  53 org-agenda-files
  54      This means include the complete, unrestricted list of files given in
  55      the variable `org-agenda-files'.
  56 org-agenda-text-search-extra-files
  57      Include the files given in the variable
  58      `org-agenda-text-search-extra-files'"
  59   :group 'org-mobile
  60   :type '(list :greedy t
  61                (option (const :tag "org-agenda-files" org-agenda-files))
  62                (option (const :tag "org-agenda-text-search-extra-files"
  63                               org-agenda-text-search-extra-files))
  64                (repeat :inline t :tag "Additional files"
  65                        (file))))
  66
  67 (defcustom org-mobile-files-exclude-regexp ""
  68   "A regexp to exclude files from `org-mobile-files'."
  69   :group 'org-mobile
  70   :version "24.1"
  71   :type 'regexp)
  72
  73 (defcustom org-mobile-directory ""
  74   "The WebDAV directory where the interaction with the mobile takes place."
  75   :group 'org-mobile
  76   :type 'directory)
  77
  78 (defcustom org-mobile-allpriorities "A B C"
  79   "Default set of priority cookies for the index file."
  80   :version "24.4"
  81   :package-version '(Org . "8.0")
  82   :type 'string
  83   :group 'org-mobile)
  84
  85 (defcustom org-mobile-use-encryption nil
  86   "Non-nil means keep only encrypted files on the WebDAV server.
  87 Encryption uses AES-256, with a password given in
  88 `org-mobile-encryption-password'.
  89 When nil, plain files are kept on the server.
  90 Turning on encryption requires setting the same password in the MobileOrg
  91 application.  Before turning this on, check of MobileOrg does already
  92 support it - at the time of this writing it did not yet."
  93   :group 'org-mobile
  94   :version "24.1"
  95   :type 'boolean)
  96
  97 (defcustom org-mobile-encryption-tempfile "~/orgtmpcrypt"
  98   "File that is being used as a temporary file for encryption.
  99 This must be local file on your local machine (not on the WebDAV server).
 100 You might want to put this file into a directory where only you have access."
 101   :group 'org-mobile
 102   :version "24.1"
 103   :type 'directory)
 104
 105 (defcustom org-mobile-encryption-password ""
 106   "Password for encrypting files uploaded to the server.
 107 This is a single password which is used for AES-256 encryption.  The same
 108 password must also be set in the MobileOrg application.  All Org files,
 109 including mobileorg.org will be encrypted using this password.
 110
 111 SECURITY CONSIDERATIONS:
 112
 113 Note that, when Org runs the encryption commands, the password could
 114 be visible briefly on your system with the `ps' command.  So this method is
 115 only intended to keep the files secure on the server, not on your own machine.
 116
 117 Also, if you set this variable in an init file (.emacs or .emacs.d/init.el
 118 or custom.el...) and if that file is stored in a way so that other can read
 119 it, this also limits the security of this approach.  You can also leave
 120 this variable empty - Org will then ask for the password once per Emacs
 121 session."
 122   :group 'org-mobile
 123   :version "24.1"
 124   :type '(string :tag "Password"))
 125
 126 (defvar org-mobile-encryption-password-session nil)
 127
 128 (defun org-mobile-encryption-password ()
 129   (or (org-string-nw-p org-mobile-encryption-password)
 130       (org-string-nw-p org-mobile-encryption-password-session)
 131       (setq org-mobile-encryption-password-session
 132             (read-passwd "Password for MobileOrg: " t))))
 133
 134 (defcustom org-mobile-inbox-for-pull "~/org/from-mobile.org"
 135   "The file where captured notes and flags will be appended to.
 136 During the execution of `org-mobile-pull', the file
 137 `org-mobile-capture-file' will be emptied it's contents have
 138 been appended to the file given here.  This file should be in
 139 `org-directory', and not in the staging area or on the web server."
 140   :group 'org-mobile
 141   :type 'file)
 142
 143 (defconst org-mobile-capture-file "mobileorg.org"
 144   "The capture file where the mobile stores captured notes and flags.
 145 This should not be changed, because MobileOrg assumes this name.")
 146
 147 (defcustom org-mobile-index-file "index.org"
 148   "The index file with links to all Org files that should be loaded by MobileOrg.
 149 Relative to `org-mobile-directory'.  The Address field in the MobileOrg setup
 150 should point to this file."
 151   :group 'org-mobile
 152   :type 'file)
 153
 154 (defcustom org-mobile-agendas 'all
 155   "The agendas that should be pushed to MobileOrg.
 156 Allowed values:
 157
 158 default  the weekly agenda and the global TODO list
 159 custom   all custom agendas defined by the user
 160 all      the custom agendas and the default ones
 161 list     a list of selection key(s) as string."
 162   :group 'org-mobile
 163   :version "24.1"
 164   :type '(choice
 165           (const :tag "Default Agendas" default)
 166           (const :tag "Custom Agendas" custom)
 167           (const :tag "Default and Custom Agendas" all)
 168           (repeat :tag "Selected"
 169                   (string :tag "Selection Keys"))))
 170
 171 (defcustom org-mobile-force-id-on-agenda-items t
 172   "Non-nil means make all agenda items carry an ID."
 173   :group 'org-mobile
 174   :type 'boolean)
 175
 176 (defcustom org-mobile-force-mobile-change nil
 177   "Non-nil means force the change made on the mobile device.
 178 So even if there have been changes to the computer version of the entry,
 179 force the new value set on the mobile.
 180 When nil, mark the entry from the mobile with an error message.
 181 Instead of nil or t, this variable can also be a list of symbols, indicating
 182 the editing types for which the mobile version should always dominate."
 183   :group 'org-mobile
 184   :type '(choice
 185           (const :tag "Always" t)
 186           (const :tag "Never" nil)
 187           (set :greedy t :tag "Specify"
 188                (const todo)
 189                (const tags)
 190                (const priority)
 191                (const heading)
 192                (const body))))
 193
 194 (defcustom org-mobile-checksum-binary (or (executable-find "shasum")
 195                                           (executable-find "sha1sum")
 196                                           (executable-find "md5sum")
 197                                           (executable-find "md5"))
 198   "Executable used for computing checksums of agenda files."
 199   :group 'org-mobile
 200   :type 'string)
 201
 202 (defvar org-mobile-pre-push-hook nil
 203   "Hook run before running `org-mobile-push'.
 204 This could be used to clean up `org-mobile-directory', for example to
 205 remove files that used to be included in the agenda but no longer are.
 206 The presence of such files would not really be a problem, but after time
 207 they may accumulate.")
 208
 209 (defvar org-mobile-post-push-hook nil
 210   "Hook run after running `org-mobile-push'.
 211 If Emacs does not have direct write access to the WebDAV directory used
 212 by the mobile device, this hook should be used to copy all files from the
 213 local staging directory `org-mobile-directory' to the WebDAV directory,
 214 for example using `rsync' or `scp'.")
 215
 216 (defvar org-mobile-pre-pull-hook nil
 217   "Hook run before executing `org-mobile-pull'.
 218 If Emacs does not have direct write access to the WebDAV directory used
 219 by the mobile device, this hook should be used to copy the capture file
 220 `mobileorg.org' from the WebDAV location to the local staging
 221 directory `org-mobile-directory'.")
 222
 223 (defvar org-mobile-post-pull-hook nil
 224   "Hook run after running `org-mobile-pull', only if new items were found.
 225 If Emacs does not have direct write access to the WebDAV directory used
 226 by the mobile device, this hook should be used to copy the emptied
 227 capture file `mobileorg.org' back to the WebDAV directory, for example
 228 using `rsync' or `scp'.")
 229
 230 (defconst org-mobile-action-alist '(("edit" . org-mobile-edit))
 231   "Alist with flags and actions for mobile sync.
 232 When flagging an entry, MobileOrg will create entries that look like
 233
 234   * F(action:data)  [[id:entry-id][entry title]]
 235
 236 This alist defines that the ACTION in the parentheses of F()
 237 should mean, i.e. what action should be taken.  The :data part in
 238 the parenthesis is optional.  If present, the string after the
 239 colon will be passed to the action function as the first argument
 240 variable.
 241
 242 The car of each elements of the alist is an actions string.  The
 243 cdr is a function that is called with the cursor on the headline
 244 of that entry.  It should accept three arguments, the :data part,
 245 the old and new values for the entry.")
 246
 247 (defvar org-mobile-last-flagged-files nil
 248   "List of files containing entries flagged in the latest pull.")
 249
 250 (defvar org-mobile-files-alist nil)
 251 (defvar org-mobile-checksum-files nil)
 252
 253 (defun org-mobile-prepare-file-lists ()
 254   (setq org-mobile-files-alist (org-mobile-files-alist))
 255   (setq org-mobile-checksum-files nil))
 256
 257 (defun org-mobile-files-alist ()
 258   "Expand the list in `org-mobile-files' to a list of existing files.
 259 Also exclude files matching `org-mobile-files-exclude-regexp'."
 260   (let* ((include-archives
 261           (and (member 'org-agenda-text-search-extra-files org-mobile-files)
 262                (member 'agenda-archives org-agenda-text-search-extra-files)
 263                t))
 264          (files
 265           (apply 'append
 266                  (mapcar
 267                   (lambda (f)
 268                     (cond
 269                      ((eq f 'org-agenda-files)
 270                       (org-agenda-files t include-archives))
 271                      ((eq f 'org-agenda-text-search-extra-files)
 272                       (delq 'agenda-archives
 273                             (copy-sequence
 274                              org-agenda-text-search-extra-files)))
 275                      ((and (stringp f) (file-directory-p f))
 276                       (directory-files f 'full "\\.org\\'"))
 277                      ((and (stringp f) (file-exists-p f))
 278                       (list f))
 279                      (t nil)))
 280                   org-mobile-files)))
 281          (files (delq
 282                  nil
 283                  (mapcar (lambda (f)
 284                            (unless (and (not (string= org-mobile-files-exclude-regexp ""))
 285                                         (string-match org-mobile-files-exclude-regexp f))
 286                              (identity f)))
 287                          files)))
 288          (orgdir-uname (file-name-as-directory (file-truename org-directory)))
 289          (orgdir-re (concat "\\`" (regexp-quote orgdir-uname)))
 290          uname seen rtn file link-name)
 291     ;; Make the files unique, and determine the name under which they will
 292     ;; be listed.
 293     (while (setq file (pop files))
 294       (if (not (file-name-absolute-p file))
 295           (setq file (expand-file-name file org-directory)))
 296       (setq uname (file-truename file))
 297       (unless (member uname seen)
 298         (push uname seen)
 299         (if (string-match orgdir-re uname)
 300             (setq link-name (substring uname (match-end 0)))
 301           (setq link-name (file-name-nondirectory uname)))
 302         (push (cons file link-name) rtn)))
 303     (nreverse rtn)))
 304
 305 ;;;###autoload
 306 (defun org-mobile-push ()
 307   "Push the current state of Org affairs to the target directory.
 308 This will create the index file, copy all agenda files there, and also
 309 create all custom agenda views, for upload to the mobile phone."
 310   (interactive)
 311   (let ((org-agenda-buffer-name "*SUMO*")
 312         (org-agenda-tag-filter org-agenda-tag-filter)
 313         (org-agenda-redo-command org-agenda-redo-command))
 314     (save-excursion
 315       (save-restriction
 316         (save-window-excursion
 317           (run-hooks 'org-mobile-pre-push-hook)
 318           (org-mobile-check-setup)
 319           (org-mobile-prepare-file-lists)
 320           (message "Creating agendas...")
 321           (let ((inhibit-redisplay t)
 322                 (org-agenda-files (mapcar 'car org-mobile-files-alist)))
 323             (org-mobile-create-sumo-agenda))
 324           (message "Creating agendas...done")
 325           (org-save-all-org-buffers) ; to save any IDs created by this process
 326           (message "Copying files...")
 327           (org-mobile-copy-agenda-files)
 328           (message "Writing index file...")
 329           (org-mobile-create-index-file)
 330           (message "Writing checksums...")
 331           (org-mobile-write-checksums)
 332           (run-hooks 'org-mobile-post-push-hook)))))
 333   (org-agenda-maybe-redo)
 334   (message "Files for mobile viewer staged"))
 335
 336 (defvar org-mobile-before-process-capture-hook nil
 337   "Hook that is run after content was moved to `org-mobile-inbox-for-pull'.
 338 The inbox file is visited by the current buffer, and the buffer is
 339 narrowed to the newly captured data.")
 340
 341 ;;;###autoload
 342 (defun org-mobile-pull ()
 343   "Pull the contents of `org-mobile-capture-file' and integrate them.
 344 Apply all flagged actions, flag entries to be flagged and then call an
 345 agenda view showing the flagged items."
 346   (interactive)
 347   (org-mobile-check-setup)
 348   (run-hooks 'org-mobile-pre-pull-hook)
 349   (let ((insertion-marker (org-mobile-move-capture)))
 350     (if (not (markerp insertion-marker))
 351         (message "No new items")
 352       (org-with-point-at insertion-marker
 353         (save-restriction
 354           (narrow-to-region (point) (point-max))
 355           (run-hooks 'org-mobile-before-process-capture-hook)))
 356       (org-with-point-at insertion-marker
 357         (org-mobile-apply (point) (point-max)))
 358       (move-marker insertion-marker nil)
 359       (run-hooks 'org-mobile-post-pull-hook)
 360       (when org-mobile-last-flagged-files
 361         ;; Make an agenda view of flagged entries, but only in the files
 362         ;; where stuff has been added.
 363         (put 'org-agenda-files 'org-restrict org-mobile-last-flagged-files)
 364         (let ((org-agenda-keep-restricted-file-list t))
 365           (org-agenda nil "?"))))))
 366
 367 (defun org-mobile-check-setup ()
 368   "Check if org-mobile-directory has been set up."
 369   (org-mobile-cleanup-encryption-tempfile)
 370   (unless (and org-directory
 371                (stringp org-directory)
 372                (string-match "\\S-" org-directory)
 373                (file-exists-p org-directory)
 374                (file-directory-p org-directory))
 375     (error
 376      "Please set `org-directory' to the directory where your org files live"))
 377   (unless (and org-mobile-directory
 378                (stringp org-mobile-directory)
 379                (string-match "\\S-" org-mobile-directory)
 380                (file-exists-p org-mobile-directory)
 381                (file-directory-p org-mobile-directory))
 382     (error
 383      "Variable `org-mobile-directory' must point to an existing directory"))
 384   (unless (and org-mobile-inbox-for-pull
 385                (stringp org-mobile-inbox-for-pull)
 386                (string-match "\\S-" org-mobile-inbox-for-pull)
 387                (file-exists-p
 388                 (file-name-directory org-mobile-inbox-for-pull)))
 389     (error
 390      "Variable `org-mobile-inbox-for-pull' must point to a file in an existing directory"))
 391   (unless (and org-mobile-checksum-binary
 392                (string-match "\\S-" org-mobile-checksum-binary))
 393     (error "No executable found to compute checksums"))
 394   (when org-mobile-use-encryption
 395     (unless (string-match "\\S-" (org-mobile-encryption-password))
 396       (error
 397        "To use encryption, you must set `org-mobile-encryption-password'"))
 398     (unless (file-writable-p org-mobile-encryption-tempfile)
 399       (error "Cannot write to encryption tempfile %s"
 400              org-mobile-encryption-tempfile))
 401     (unless (executable-find "openssl")
 402       (error "OpenSSL is needed to encrypt files"))))
 403
 404 (defun org-mobile-create-index-file ()
 405   "Write the index file in the WebDAV directory."
 406   (let ((files-alist (sort (copy-sequence org-mobile-files-alist)
 407                            (lambda (a b) (string< (cdr a) (cdr b)))))
 408         (def-todo (default-value 'org-todo-keywords))
 409         (def-tags org-tag-alist)
 410         (target-file (expand-file-name org-mobile-index-file
 411                                        org-mobile-directory))
 412         todo-kwds done-kwds tags)
 413     (when (stringp (car def-todo))
 414       (setq def-todo (list (cons 'sequence def-todo))))
 415     (org-agenda-prepare-buffers (mapcar 'car files-alist))
 416     (setq done-kwds (org-uniquify org-done-keywords-for-agenda))
 417     (setq todo-kwds (org-delete-all
 418                      done-kwds
 419                      (org-uniquify org-todo-keywords-for-agenda)))
 420     (setq tags (mapcar 'car (org-global-tags-completion-table
 421                              (mapcar 'car files-alist))))
 422     (with-temp-file (if org-mobile-use-encryption org-mobile-encryption-tempfile
 423                       target-file)
 424       (insert "#+READONLY\n")
 425       (dolist (entry def-todo)
 426         (let ((kwds (mapcar (lambda (x)
 427                               (if (string-match "(" x)
 428                                   (substring x 0 (match-beginning 0))
 429                                 x))
 430                             (cdr entry))))
 431           (insert "#+TODO: " (mapconcat #'identity kwds " ") "\n")
 432           (let* ((dwds (or (member "|" kwds) (last kwds)))
 433                  (twds (org-delete-all dwds kwds)))
 434             (setq todo-kwds (org-delete-all twds todo-kwds))
 435             (setq done-kwds (org-delete-all dwds done-kwds)))))
 436       (when (or todo-kwds done-kwds)
 437         (insert "#+TODO: " (mapconcat 'identity todo-kwds " ") " | "
 438                 (mapconcat 'identity done-kwds " ") "\n"))
 439       (setq def-tags (split-string (org-tag-alist-to-string def-tags t)))
 440       (setq tags (org-delete-all def-tags tags))
 441       (setq tags (sort tags (lambda (a b) (string< (downcase a) (downcase b)))))
 442       (setq tags (append def-tags tags nil))
 443       (insert "#+TAGS: " (mapconcat 'identity tags " ") "\n")
 444       (insert "#+ALLPRIORITIES: " org-mobile-allpriorities "\n")
 445       (when (file-exists-p (expand-file-name
 446                             org-mobile-directory "agendas.org"))
 447         (insert "* [[file:agendas.org][Agenda Views]]\n"))
 448       (pcase-dolist (`(,_ . ,link-name) files-alist)
 449         (insert (format "* [[file:%s][%s]]\n" link-name link-name)))
 450       (push (cons org-mobile-index-file (md5 (buffer-string)))
 451             org-mobile-checksum-files))
 452     (when org-mobile-use-encryption
 453       (org-mobile-encrypt-and-move org-mobile-encryption-tempfile
 454                                    target-file)
 455       (org-mobile-cleanup-encryption-tempfile))))
 456
 457 (defun org-mobile-copy-agenda-files ()
 458   "Copy all agenda files to the stage or WebDAV directory."
 459   (let ((files-alist org-mobile-files-alist)
 460         file buf entry link-name target-path target-dir check)
 461     (while (setq entry (pop files-alist))
 462       (setq file (car entry) link-name (cdr entry))
 463       (when (file-exists-p file)
 464         (setq target-path (expand-file-name link-name org-mobile-directory)
 465               target-dir (file-name-directory target-path))
 466         (unless (file-directory-p target-dir)
 467           (make-directory target-dir 'parents))
 468         (if org-mobile-use-encryption
 469             (org-mobile-encrypt-and-move file target-path)
 470           (copy-file file target-path 'ok-if-already-exists))
 471         (setq check (shell-command-to-string
 472                      (concat (shell-quote-argument org-mobile-checksum-binary)
 473                              " "
 474                              (shell-quote-argument (expand-file-name file)))))
 475         (when (string-match "[a-fA-F0-9]\\{30,40\\}" check)
 476           (push (cons link-name (match-string 0 check))
 477                 org-mobile-checksum-files))))
 478
 479     (setq file (expand-file-name org-mobile-capture-file
 480                                  org-mobile-directory))
 481     (save-excursion
 482       (setq buf (find-file file))
 483       (when (and (= (point-min) (point-max)))
 484         (insert "\n")
 485         (save-buffer)
 486         (when org-mobile-use-encryption
 487           (write-file org-mobile-encryption-tempfile)
 488           (org-mobile-encrypt-and-move org-mobile-encryption-tempfile file)))
 489       (push (cons org-mobile-capture-file (md5 (buffer-string)))
 490             org-mobile-checksum-files))
 491     (org-mobile-cleanup-encryption-tempfile)
 492     (kill-buffer buf)))
 493
 494 (defun org-mobile-write-checksums ()
 495   "Create checksums for all files in `org-mobile-directory'.
 496 The table of checksums is written to the file mobile-checksums."
 497   (let ((sumfile (expand-file-name "checksums.dat" org-mobile-directory))
 498         (files org-mobile-checksum-files)
 499         entry file sum)
 500     (with-temp-file sumfile
 501       (set-buffer-file-coding-system 'undecided-unix nil)
 502       (while (setq entry (pop files))
 503         (setq file (car entry) sum (cdr entry))
 504         (insert (format "%s  %s\n" sum file))))))
 505
 506 (defun org-mobile-sumo-agenda-command ()
 507   "Return an agenda custom command that comprises all custom commands."
 508   (let ((custom-list
 509          ;; normalize different versions
 510          (delq nil
 511                (mapcar
 512                 (lambda (x)
 513                   (cond ((stringp (cdr x)) nil)
 514                         ((stringp (nth 1 x)) x)
 515                         ((not (nth 1 x)) (cons (car x) (cons "" (cddr x))))
 516                         (t (cons (car x) (cons "" (cdr x))))))
 517                 org-agenda-custom-commands)))
 518         (default-list '(("a" "Agenda" agenda) ("t" "All TODO" alltodo)))
 519         thelist atitle new e key desc type match settings cmds gkey gdesc gsettings cnt)
 520     (cond
 521      ((eq org-mobile-agendas 'custom)
 522       (setq thelist custom-list))
 523      ((eq org-mobile-agendas 'default)
 524       (setq thelist default-list))
 525      ((eq org-mobile-agendas 'all)
 526       (setq thelist custom-list)
 527       (unless (assoc "t" thelist) (push '("t" "ALL TODO" alltodo) thelist))
 528       (unless (assoc "a" thelist) (push '("a" "Agenda" agenda) thelist)))
 529      ((listp org-mobile-agendas)
 530       (setq thelist (append custom-list default-list))
 531       (setq thelist (delq nil (mapcar (lambda (k) (assoc k thelist))
 532                                       org-mobile-agendas)))))
 533     (while (setq e (pop thelist))
 534       (cond
 535        ((stringp (cdr e))
 536         ;; this is a description entry - skip it
 537         )
 538        ((eq (nth 2 e) 'search)
 539         ;; Search view is interactive, skip
 540         )
 541        ((memq (nth 2 e) '(todo-tree tags-tree occur-tree))
 542         ;; These are trees, not really agenda commands
 543         )
 544        ((and (memq (nth 2 e) '(todo tags tags-todo))
 545              (or (null (nth 3 e))
 546                  (not (string-match "\\S-" (nth 3 e)))))
 547         ;; These would be interactive because the match string is empty
 548         )
 549        ((memq (nth 2 e) '(agenda alltodo todo tags tags-todo))
 550         ;; a normal command
 551         (setq key (car e) desc (nth 1 e) type (nth 2 e) match (nth 3 e)
 552               settings (nth 4 e))
 553         (setq settings
 554               (cons (list 'org-agenda-title-append
 555                           (concat "<after>KEYS=" key " TITLE: "
 556                                   (if (and (stringp desc) (> (length desc) 0))
 557                                       desc (symbol-name type))
 558                                   "</after>"))
 559                     settings))
 560         (push (list type match settings) new))
 561        ((or (functionp (nth 2 e)) (symbolp (nth 2 e)))
 562         ;; A user-defined function, which can do anything, so simply
 563         ;; ignore it.
 564         )
 565        (t
 566         ;; a block agenda
 567         (setq gkey (car e) gdesc (nth 1 e) gsettings (nth 3 e) cmds (nth 2 e))
 568         (setq cnt 0)
 569         (while (setq e (pop cmds))
 570           (setq type (car e) match (nth 1 e) settings (nth 2 e))
 571           (setq atitle (if (string= "" gdesc) match gdesc))
 572           (setq settings (append gsettings settings))
 573           (setq settings
 574                 (cons (list 'org-agenda-title-append
 575                             (concat "<after>KEYS=" gkey "#" (number-to-string
 576                                                              (setq cnt (1+ cnt)))
 577                                     " TITLE: " atitle "</after>"))
 578                       settings))
 579           (push (list type match settings) new)))))
 580     (and new (list "X" "SUMO" (reverse new)
 581                    '((org-agenda-compact-blocks nil))))))
 582
 583 (defvar org-mobile-creating-agendas nil)
 584 (defun org-mobile-write-agenda-for-mobile (file)
 585   (let ((all (buffer-string)) in-date id pl prefix line app short m sexp)
 586     (with-temp-file file
 587       (org-mode)
 588       (insert "#+READONLY\n")
 589       (insert all)
 590       (goto-char (point-min))
 591       (while (not (eobp))
 592         (cond
 593          ((looking-at "[ \t]*$")) ; keep empty lines
 594          ((looking-at "=+$")
 595           ;; remove underlining
 596           (delete-region (point) (point-at-eol)))
 597          ((get-text-property (point) 'org-agenda-structural-header)
 598           (setq in-date nil)
 599           (setq app (get-text-property (point) 'org-agenda-title-append))
 600           (setq short (get-text-property (point) 'short-heading))
 601           (when (and short (looking-at ".+"))
 602             (replace-match short nil t)
 603             (beginning-of-line 1))
 604           (when app
 605             (end-of-line 1)
 606             (insert app)
 607             (beginning-of-line 1))
 608           (insert "* "))
 609          ((get-text-property (point) 'org-agenda-date-header)
 610           (setq in-date t)
 611           (insert "** "))
 612          ((setq m (or (get-text-property (point) 'org-hd-marker)
 613                       (get-text-property (point) 'org-marker)))
 614           (setq sexp (member (get-text-property (point) 'type)
 615                              '("diary" "sexp")))
 616           (if (setq pl (text-property-any (point) (point-at-eol) 'org-heading t))
 617               (progn
 618                 (setq prefix (org-trim (buffer-substring
 619                                         (point) pl))
 620                       line (org-trim (buffer-substring
 621                                       pl
 622                                       (point-at-eol))))
 623                 (delete-region (point-at-bol) (point-at-eol))
 624                 (insert line "<before>" prefix "</before>")
 625                 (beginning-of-line 1))
 626             (and (looking-at "[ \t]+") (replace-match "")))
 627           (insert (if in-date "***  " "**  "))
 628           (end-of-line 1)
 629           (insert "\n")
 630           (unless sexp
 631             (insert (org-agenda-get-some-entry-text
 632                      m 10 "   " 'planning)
 633                     "\n")
 634             (when (setq id
 635                         (if (bound-and-true-p
 636                              org-mobile-force-id-on-agenda-items)
 637                             (org-id-get m 'create)
 638                           (or (org-entry-get m "ID")
 639                               (org-mobile-get-outline-path-link m))))
 640               (insert "   :PROPERTIES:\n   :ORIGINAL_ID: " id
 641                       "\n   :END:\n")))))
 642         (beginning-of-line 2))
 643       (push (cons "agendas.org" (md5 (buffer-string)))
 644             org-mobile-checksum-files))
 645     (message "Agenda written to Org file %s" file)))
 646
 647 (defun org-mobile-get-outline-path-link (pom)
 648   (org-with-point-at pom
 649     (concat "olp:"
 650             (org-mobile-escape-olp (file-name-nondirectory buffer-file-name))
 651             ":"
 652             (mapconcat 'org-mobile-escape-olp
 653                        (org-get-outline-path)
 654                        "/")
 655             "/"
 656             (org-mobile-escape-olp (nth 4 (org-heading-components))))))
 657
 658 (defun org-mobile-escape-olp (s)
 659   (let  ((table '(?: ?/)))
 660     (org-link-escape s table)))
 661
 662 (defun org-mobile-create-sumo-agenda ()
 663   "Create a file that contains all custom agenda views."
 664   (interactive)
 665   (let* ((file (expand-file-name "agendas.org"
 666                                  org-mobile-directory))
 667          (file1 (if org-mobile-use-encryption
 668                     org-mobile-encryption-tempfile
 669                   file))
 670          (sumo (org-mobile-sumo-agenda-command))
 671          (org-agenda-custom-commands
 672           (list (append sumo (list (list file1)))))
 673          (org-mobile-creating-agendas t))
 674     (unless (file-writable-p file1)
 675       (error "Cannot write to file %s" file1))
 676     (when sumo
 677       (org-store-agenda-views))
 678     (when org-mobile-use-encryption
 679       (org-mobile-encrypt-and-move file1 file)
 680       (delete-file file1)
 681       (org-mobile-cleanup-encryption-tempfile))))
 682
 683 (defun org-mobile-encrypt-and-move (infile outfile)
 684   "Encrypt INFILE locally to INFILE_enc, then move it to OUTFILE.
 685 We do this in two steps so that remote paths will work, even if the
 686 encryption program does not understand them."
 687   (let ((encfile (concat infile "_enc")))
 688     (org-mobile-encrypt-file infile encfile)
 689     (when outfile
 690       (copy-file encfile outfile 'ok-if-already-exists)
 691       (delete-file encfile))))
 692
 693 (defun org-mobile-encrypt-file (infile outfile)
 694   "Encrypt INFILE to OUTFILE, using `org-mobile-encryption-password'."
 695   (shell-command
 696    (format "openssl enc -md md5 -aes-256-cbc -salt -pass %s -in %s -out %s"
 697            (shell-quote-argument (concat "pass:"
 698                                          (org-mobile-encryption-password)))
 699            (shell-quote-argument (expand-file-name infile))
 700            (shell-quote-argument (expand-file-name outfile)))))
 701
 702 (defun org-mobile-decrypt-file (infile outfile)
 703   "Decrypt INFILE to OUTFILE, using `org-mobile-encryption-password'."
 704   (shell-command
 705    (format "openssl enc -md md5 -d -aes-256-cbc -salt -pass %s -in %s -out %s"
 706            (shell-quote-argument (concat "pass:"
 707                                          (org-mobile-encryption-password)))
 708            (shell-quote-argument (expand-file-name infile))
 709            (shell-quote-argument (expand-file-name outfile)))))
 710
 711 (defun org-mobile-cleanup-encryption-tempfile ()
 712   "Remove the encryption tempfile if it exists."
 713   (and (stringp org-mobile-encryption-tempfile)
 714        (file-exists-p org-mobile-encryption-tempfile)
 715        (delete-file org-mobile-encryption-tempfile)))
 716
 717 (defun org-mobile-move-capture ()
 718   "Move the contents of the capture file to the inbox file.
 719 Return a marker to the location where the new content has been added.
 720 If nothing new has been added, return nil."
 721   (interactive)
 722   (let* ((encfile nil)
 723          (capture-file (expand-file-name org-mobile-capture-file
 724                                          org-mobile-directory))
 725          (inbox-buffer (find-file-noselect org-mobile-inbox-for-pull))
 726          (capture-buffer
 727           (if (not org-mobile-use-encryption)
 728               (find-file-noselect capture-file)
 729             (org-mobile-cleanup-encryption-tempfile)
 730             (setq encfile (concat org-mobile-encryption-tempfile "_enc"))
 731             (copy-file capture-file encfile)
 732             (org-mobile-decrypt-file encfile org-mobile-encryption-tempfile)
 733             (find-file-noselect org-mobile-encryption-tempfile)))
 734          (insertion-point (make-marker))
 735          not-empty content)
 736     (with-current-buffer capture-buffer
 737       (setq content (buffer-string))
 738       (setq not-empty (string-match "\\S-" content))
 739       (when not-empty
 740         (set-buffer inbox-buffer)
 741         (widen)
 742         (goto-char (point-max))
 743         (or (bolp) (newline))
 744         (move-marker insertion-point
 745                      (prog1 (point) (insert content)))
 746         (save-buffer)
 747         (set-buffer capture-buffer)
 748         (erase-buffer)
 749         (save-buffer)
 750         (org-mobile-update-checksum-for-capture-file (buffer-string))))
 751     (kill-buffer capture-buffer)
 752     (when org-mobile-use-encryption
 753       (org-mobile-encrypt-and-move org-mobile-encryption-tempfile
 754                                    capture-file)
 755       (org-mobile-cleanup-encryption-tempfile))
 756     (if not-empty insertion-point)))
 757
 758 (defun org-mobile-update-checksum-for-capture-file (buffer-string)
 759   "Find the checksum line and modify it to match BUFFER-STRING."
 760   (let* ((file (expand-file-name "checksums.dat" org-mobile-directory))
 761          (buffer (find-file-noselect file)))
 762     (when buffer
 763       (with-current-buffer buffer
 764         (when (re-search-forward (concat "\\([0-9a-fA-F]\\{30,\\}\\).*?"
 765                                          (regexp-quote org-mobile-capture-file)
 766                                          "[ \t]*$") nil t)
 767           (goto-char (match-beginning 1))
 768           (delete-region (match-beginning 1) (match-end 1))
 769           (insert (md5 buffer-string))
 770           (save-buffer)))
 771       (kill-buffer buffer))))
 772
 773 (defun org-mobile-apply (&optional beg end)
 774   "Apply all change requests in the current buffer.
 775 If BEG and END are given, only do this in that region."
 776   (interactive)
 777   (require 'org-archive)
 778   (setq org-mobile-last-flagged-files nil)
 779   (setq beg (or beg (point-min)) end (or end (point-max)))
 780
 781   ;; Remove all Note IDs
 782   (goto-char beg)
 783   (while (re-search-forward "^\\*\\* Note ID: [-0-9A-F]+[ \t]*\n" end t)
 784     (replace-match ""))
 785
 786   ;; Find all the referenced entries, without making any changes yet
 787   (let ((marker (make-marker))
 788         (bos-marker (make-marker))
 789         (end (move-marker (make-marker) end))
 790         (cnt-new 0)
 791         (cnt-edit 0)
 792         (cnt-flag 0)
 793         (cnt-error 0)
 794         buf-list
 795         org-mobile-error)
 796
 797     ;; Count the new captures
 798     (goto-char beg)
 799     (while (re-search-forward "^\\* \\(.*\\)" end t)
 800       (and (>= (- (match-end 1) (match-beginning 1)) 2)
 801            (not (equal (downcase (substring (match-string 1) 0 2)) "f("))
 802            (cl-incf cnt-new)))
 803
 804     ;; Find and apply the edits
 805     (goto-char beg)
 806     (while (re-search-forward
 807             "^\\*+[ \t]+F(\\([^():\n]*\\)\\(:\\([^()\n]*\\)\\)?)[ \t]+\\[\\[\\(\\(id\\|olp\\):\\([^]\n]+\\)\\)" end t)
 808       (catch 'next
 809         (let* ((action (match-string 1))
 810                (data (and (match-end 3) (match-string 3)))
 811                (id-pos (condition-case msg
 812                            (org-mobile-locate-entry (match-string 4))
 813                          (error (nth 1 msg))))
 814                (bos (line-beginning-position))
 815                (eos (save-excursion (org-end-of-subtree t t)))
 816                (cmd (if (equal action "")
 817                         (let ((note (buffer-substring-no-properties
 818                                      (line-beginning-position 2) eos)))
 819                           (lambda (_data _old _new)
 820                             (cl-incf cnt-flag)
 821                             (org-toggle-tag "FLAGGED" 'on)
 822                             (org-entry-put
 823                              nil "THEFLAGGINGNOTE"
 824                              (replace-regexp-in-string "\n" "\\\\n" note))))
 825                       (cl-incf cnt-edit)
 826                       (cdr (assoc action org-mobile-action-alist))))
 827                ;; Do not take notes interactively.
 828                (org-inhibit-logging 'note)
 829                old new)
 830
 831           (goto-char bos)
 832           (when (and (markerp id-pos)
 833                      (not (member (marker-buffer id-pos) buf-list)))
 834             (org-mobile-timestamp-buffer (marker-buffer id-pos))
 835             (push (marker-buffer id-pos) buf-list))
 836           (unless (markerp id-pos)
 837             (goto-char (+ 2 (point-at-bol)))
 838             (if (stringp id-pos)
 839                 (insert id-pos " ")
 840               (insert "BAD REFERENCE "))
 841             (cl-incf cnt-error)
 842             (throw 'next t))
 843           (unless cmd
 844             (insert "BAD FLAG ")
 845             (cl-incf cnt-error)
 846             (throw 'next t))
 847           (move-marker bos-marker (point))
 848           (if (re-search-forward "^** Old value[ \t]*$" eos t)
 849               (setq old (buffer-substring
 850                          (1+ (match-end 0))
 851                          (progn (outline-next-heading) (point)))))
 852           (if (re-search-forward "^** New value[ \t]*$" eos t)
 853               (setq new (buffer-substring
 854                          (1+ (match-end 0))
 855                          (progn (outline-next-heading)
 856                                 (if (eobp) (org-back-over-empty-lines))
 857                                 (point)))))
 858           (setq old (org-string-nw-p old))
 859           (setq new (org-string-nw-p new))
 860           (unless (equal data "body")
 861             (setq new (and new (org-trim new)))
 862             (setq old (and old (org-trim old))))
 863           (goto-char (+ 2 bos-marker))
 864           ;; Remember this place so that we can return
 865           (move-marker marker (point))
 866           (setq org-mobile-error nil)
 867           (condition-case msg
 868               (org-with-point-at id-pos
 869                 (funcall cmd data old new)
 870                 (unless (member data '("delete" "archive" "archive-sibling"
 871                                        "addheading"))
 872                   (when (member "FLAGGED" (org-get-tags))
 873                     (add-to-list 'org-mobile-last-flagged-files
 874                                  (buffer-file-name)))))
 875             (error (setq org-mobile-error msg)))
 876           (when org-mobile-error
 877             (pop-to-buffer-same-window (marker-buffer marker))
 878             (goto-char marker)
 879             (cl-incf cnt-error)
 880             (insert (if (stringp (nth 1 org-mobile-error))
 881                         (nth 1 org-mobile-error)
 882                       "EXECUTION FAILED")
 883                     " ")
 884             (throw 'next t))
 885           ;; If we get here, the action has been applied successfully
 886           ;; So remove the entry
 887           (goto-char bos-marker)
 888           (delete-region (point) (org-end-of-subtree t t)))))
 889     (save-buffer)
 890     (move-marker marker nil)
 891     (move-marker end nil)
 892     (message "%d new, %d edits, %d flags, %d errors"
 893              cnt-new cnt-edit cnt-flag cnt-error)
 894     (sit-for 1)))
 895
 896 (defun org-mobile-timestamp-buffer (buf)
 897   "Time stamp buffer BUF, just to make sure its checksum will change."
 898   (with-current-buffer buf
 899     (save-excursion
 900       (save-restriction
 901         (widen)
 902         (goto-char (point-min))
 903         (if (re-search-forward
 904              "^\\([ \t]*\\)#\\+LAST_MOBILE_CHANGE:.*\n?" nil t)
 905             (progn
 906               (goto-char (match-end 1))
 907               (delete-region (point) (match-end 0)))
 908           (if (looking-at ".*?-\\*-.*-\\*-")
 909               (forward-line 1)))
 910         (insert "#+LAST_MOBILE_CHANGE: "
 911                 (format-time-string "%Y-%m-%d %T") "\n")))))
 912
 913 (defun org-mobile-smart-read ()
 914   "Parse the entry at point for shortcuts and expand them.
 915 These shortcuts are meant for fast and easy typing on the limited
 916 keyboards of a mobile device.  Below we show a list of the shortcuts
 917 currently implemented.
 918
 919 The entry is expected to contain an inactive time stamp indicating when
 920 the entry was created.  When setting dates and
 921 times (for example for deadlines), the time strings are interpreted
 922 relative to that creation date.
 923 Abbreviations are expected to take up entire lines, just because it is so
 924 easy to type RET on a mobile device.  Abbreviations start with one or two
 925 letters, followed immediately by a dot and then additional information.
 926 Generally the entire shortcut line is removed after action have been taken.
 927 Time stamps will be constructed using `org-read-date'.  So for example a
 928 line \"dd. 2tue\" will set a deadline on the second Tuesday after the
 929 creation date.
 930
 931 Here are the shortcuts currently implemented:
 932
 933 dd. string             set deadline
 934 ss. string             set scheduling
 935 tt. string             set time tamp, here.
 936 ti. string             set inactive time
 937
 938 tg. tag1 tag2 tag3     set all these tags, change case where necessary
 939 td. kwd                set this todo keyword, change case where necessary
 940
 941 FIXME: Hmmm, not sure if we can make his work against the
 942 auto-correction feature.  Needs a bit more thinking.  So this function
 943 is currently a noop.")
 944
 945 (defun org-mobile-locate-entry (link)
 946   (if (string-match "\\`id:\\(.*\\)$" link)
 947       (org-id-find (match-string 1 link) 'marker)
 948     (if (not (string-match "\\`olp:\\(.*?\\):\\(.*\\)$" link))
 949                                         ; not found with path, but maybe it is to be inserted
 950                                         ; in top level of the file?
 951         (if (not (string-match "\\`olp:\\(.*?\\)$" link))
 952             nil
 953           (let ((file (match-string 1 link)))
 954             (setq file (org-link-unescape file))
 955             (setq file (expand-file-name file org-directory))
 956             (save-excursion
 957               (find-file file)
 958               (goto-char (point-max))
 959               (newline)
 960               (goto-char (point-max))
 961               (point-marker))))
 962       (let ((file (match-string 1 link))
 963             (path (match-string 2 link)))
 964         (setq file (org-link-unescape file))
 965         (setq file (expand-file-name file org-directory))
 966         (setq path (mapcar 'org-link-unescape
 967                            (org-split-string path "/")))
 968         (org-find-olp (cons file path))))))
 969
 970 (defun org-mobile-edit (what old new)
 971   "Edit item WHAT in the current entry by replacing OLD with NEW.
 972 WHAT can be \"heading\", \"todo\", \"tags\", \"priority\", or \"body\".
 973 The edit only takes place if the current value is equal (except for
 974 white space) the OLD.  If this is so, OLD will be replace by NEW
 975 and the command will return t.  If something goes wrong, a string will
 976 be returned that indicates what went wrong."
 977   (let (current old1 new1 level)
 978     (if (stringp what) (setq what (intern what)))
 979
 980     (cond
 981
 982      ((memq what '(todo todostate))
 983       (setq current (org-get-todo-state))
 984       (cond
 985        ((equal new "DONEARCHIVE")
 986         (org-todo 'done)
 987         (org-archive-subtree-default))
 988        ((equal new current) t)          ; nothing needs to be done
 989        ((or (equal current old)
 990             (eq org-mobile-force-mobile-change t)
 991             (memq 'todo org-mobile-force-mobile-change))
 992         (org-todo (or new 'none)) t)
 993        (t (error "State before change was expected as \"%s\", but is \"%s\""
 994                  old current))))
 995
 996      ((eq what 'tags)
 997       (setq current (org-get-tags)
 998             new1 (and new (org-split-string new ":+"))
 999             old1 (and old (org-split-string old ":+")))
1000       (cond
1001        ((org-mobile-tags-same-p current new1) t) ; no change needed
1002        ((or (org-mobile-tags-same-p current old1)
1003             (eq org-mobile-force-mobile-change t)
1004             (memq 'tags org-mobile-force-mobile-change))
1005         (org-set-tags-to new1) t)
1006        (t (error "Tags before change were expected as \"%s\", but are \"%s\""
1007                  (or old "") (or current "")))))
1008
1009      ((eq what 'priority)
1010       (let ((case-fold-search nil))
1011         (when (looking-at org-complex-heading-regexp)
1012           (let ((current (and (match-end 3) (substring (match-string 3) 2 3))))
1013             (cond
1014              ((equal current new) t)    ;no action required
1015              ((or (equal current old)
1016                   (eq org-mobile-force-mobile-change t)
1017                   (memq 'tags org-mobile-force-mobile-change))
1018               (org-priority (and new (string-to-char new))))
1019              (t (error "Priority was expected to be %s, but is %s"
1020                        old current)))))))
1021
1022      ((eq what 'heading)
1023       (let ((case-fold-search nil))
1024         (when (looking-at org-complex-heading-regexp)
1025           (let ((current (match-string 4)))
1026             (cond
1027              ((equal current new) t)    ;no action required
1028              ((or (equal current old)
1029                   (eq org-mobile-force-mobile-change t)
1030                   (memq 'heading org-mobile-force-mobile-change))
1031               (goto-char (match-beginning 4))
1032               (insert new)
1033               (delete-region (point) (+ (point) (length current)))
1034               (org-set-tags nil 'align))
1035              (t (error "Heading changed in MobileOrg and on the computer")))))))
1036
1037      ((eq what 'addheading)
1038       (if (org-at-heading-p)    ; if false we are in top-level of file
1039           (progn
1040             ;; Workaround a `org-insert-heading-respect-content' bug
1041             ;; which prevents correct insertion when point is invisible
1042             (org-show-subtree)
1043             (end-of-line 1)
1044             (org-insert-heading-respect-content t)
1045             (org-demote))
1046         (beginning-of-line)
1047         (insert "* "))
1048       (insert new))
1049
1050      ((eq what 'refile)
1051       (org-copy-subtree)
1052       (org-with-point-at (org-mobile-locate-entry new)
1053         (if (org-at-heading-p)  ; if false we are in top-level of file
1054             (progn
1055               (setq level (org-get-valid-level (funcall outline-level) 1))
1056               (org-end-of-subtree t t)
1057               (org-paste-subtree level))
1058           (org-paste-subtree 1)))
1059       (org-cut-subtree))
1060
1061      ((eq what 'delete)
1062       (org-cut-subtree))
1063
1064      ((eq what 'archive)
1065       (org-archive-subtree))
1066
1067      ((eq what 'archive-sibling)
1068       (org-archive-to-archive-sibling))
1069
1070      ((eq what 'body)
1071       (setq current (buffer-substring (min (1+ (point-at-eol)) (point-max))
1072                                       (save-excursion (outline-next-heading)
1073                                                       (point))))
1074       (if (not (string-match "\\S-" current)) (setq current nil))
1075       (cond
1076        ((org-mobile-bodies-same-p current new) t) ; no action necessary
1077        ((or (org-mobile-bodies-same-p current old)
1078             (eq org-mobile-force-mobile-change t)
1079             (memq 'body org-mobile-force-mobile-change))
1080         (save-excursion
1081           (end-of-line 1)
1082           (insert "\n" new)
1083           (or (bolp) (insert "\n"))
1084           (delete-region (point) (progn (org-back-to-heading t)
1085                                         (outline-next-heading)
1086                                         (point))))
1087         t)
1088        (t (error "Body was changed in MobileOrg and on the computer")))))))
1089
1090 (defun org-mobile-tags-same-p (list1 list2)
1091   "Are the two tag lists the same?"
1092   (not (or (org-delete-all list1 list2)
1093            (org-delete-all list2 list1))))
1094
1095 (defun org-mobile-bodies-same-p (a b)
1096   "Compare if A and B are visually equal strings.
1097 We first remove leading and trailing white space from the entire strings.
1098 Then we split the strings into lines and remove leading/trailing whitespace
1099 from each line.  Then we compare.
1100 A and B must be strings or nil."
1101   (cond
1102    ((and (not a) (not b)) t)
1103    ((or (not a) (not b)) nil)
1104    (t (setq a (org-trim a) b (org-trim b))
1105       (setq a (mapconcat 'identity (org-split-string a "[ \t]*\n[ \t]*") "\n"))
1106       (setq b (mapconcat 'identity (org-split-string b "[ \t]*\n[ \t]*") "\n"))
1107       (equal a b))))
1108
1109 (provide 'org-mobile)
1110
1111 ;; Local variables:
1112 ;; generated-autoload-file: "org-loaddefs.el"
1113 ;; End:
1114
1115 ;;; org-mobile.el ends here