lisp/org/org-clock.el

   1 ;;; org-clock.el --- The time clocking code for Org-mode
   2
   3 ;; Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
   4
   5 ;; Author: Carsten Dominik <carsten at orgmode dot org>
   6 ;; Keywords: outlines, hypermedia, calendar, wp
   7 ;; Homepage: http://orgmode.org
   8 ;; Version: 6.16
   9 ;;
  10 ;; This file is part of GNU Emacs.
  11 ;;
  12 ;; GNU Emacs is free software: you can redistribute it and/or modify
  13 ;; it under the terms of the GNU General Public License as published by
  14 ;; the Free Software Foundation, either version 3 of the License, or
  15 ;; (at your option) any later version.
  16
  17 ;; GNU Emacs is distributed in the hope that it will be useful,
  18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 ;; GNU General Public License for more details.
  21
  22 ;; You should have received a copy of the GNU General Public License
  23 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  24 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  25 ;;
  26 ;;; Commentary:
  27
  28 ;; This file contains the time clocking code for Org-mode
  29
  30 (require 'org)
  31 (eval-when-compile
  32   (require 'cl)
  33   (require 'calendar))
  34
  35 (declare-function calendar-absolute-from-iso    "cal-iso"    (&optional date))
  36 (defvar org-time-stamp-formats)
  37
  38 (defgroup org-clock nil
  39   "Options concerning clocking working time in Org-mode."
  40   :tag "Org Clock"
  41   :group 'org-progress)
  42
  43 (defcustom org-clock-into-drawer 2
  44   "Should clocking info be wrapped into a drawer?
  45 When t, clocking info will always be inserted into a :CLOCK: drawer.
  46 If necessary, the drawer will be created.
  47 When nil, the drawer will not be created, but used when present.
  48 When an integer and the number of clocking entries in an item
  49 reaches or exceeds this number, a drawer will be created."
  50   :group 'org-todo
  51   :group 'org-clock
  52   :type '(choice
  53           (const :tag "Always" t)
  54           (const :tag "Only when drawer exists" nil)
  55           (integer :tag "When at least N clock entries")))
  56
  57 (defcustom org-clock-out-when-done t
  58   "When non-nil, the clock will be stopped when the relevant entry is marked DONE.
  59 A nil value means, clock will keep running until stopped explicitly with
  60 `C-c C-x C-o', or until the clock is started in a different item."
  61   :group 'org-clock
  62   :type 'boolean)
  63
  64 (defcustom org-clock-out-remove-zero-time-clocks nil
  65   "Non-nil means, remove the clock line when the resulting time is zero."
  66   :group 'org-clock
  67   :type 'boolean)
  68
  69 (defcustom org-clock-in-switch-to-state nil
  70   "Set task to a special todo state while clocking it.
  71 The value should be the state to which the entry should be
  72 switched. If the value is a function, it must take one
  73 parameter (the current TODO state of the item) and return the
  74 state to switch it to."
  75   :group 'org-clock
  76   :group 'org-todo
  77   :type '(choice
  78           (const :tag "Don't force a state" nil)
  79           (string :tag "State")
  80           (symbol :tag "Function")))
  81
  82 (defcustom org-clock-history-length 5
  83   "Number of clock tasks to remember in history."
  84   :group 'org-clock
  85   :type 'integer)
  86
  87 (defcustom org-clock-heading-function nil
  88   "When non-nil, should be a function to create `org-clock-heading'.
  89 This is the string shown in the mode line when a clock is running.
  90 The function is called with point at the beginning of the headline."
  91   :group 'org-clock
  92   :type 'function)
  93
  94 (defcustom org-clock-string-limit 0
  95   "Maximum length of clock strings in the modeline. 0 means no limit"
  96   :group 'org-clock
  97   :type 'integer)
  98
  99 (defcustom org-clock-in-resume nil
 100   "If non-nil, when clocking into a task with a clock entry which
 101 has not been closed, resume the clock from that point"
 102   :group 'org-clock
 103   :type 'boolean)
 104
 105 (defcustom org-clock-persist nil
 106   "When non-nil, save the running clock when emacs is closed, and
 107   resume it next time emacs is started.
 108 When this is t, both the running clock, and the entire clock
 109 history are saved.  When this is the symbol `clock', only the
 110 running clock is saved.
 111
 112 When Emacs restarts with saved clock information, the file containing the
 113 running clock as well as all files mentioned in the clock history will
 114 be visited."
 115   :group 'org-clock
 116   :type '(choice
 117           (const :tag "Just the running clock" clock)
 118           (const :tag "Clock and history" t)
 119           (const :tag "No persistence" nil)))
 120
 121 (defcustom org-clock-persist-file (convert-standard-filename
 122                                    "~/.emacs.d/org-clock-save.el")
 123   "File to save clock data to"
 124   :group 'org-clock
 125   :type 'string)
 126
 127 (defcustom org-clock-persist-query-save nil
 128   "When non-nil, ask before saving the current clock on exit"
 129   :group 'org-clock
 130   :type 'boolean)
 131
 132 (defcustom org-clock-persist-query-resume t
 133   "When non-nil, ask before resuming any stored clock during
 134 load."
 135   :group 'org-clock
 136   :type 'boolean)
 137
 138 ;;; The clock for measuring work time.
 139
 140 (defvar org-mode-line-string "")
 141 (put 'org-mode-line-string 'risky-local-variable t)
 142
 143 (defvar org-mode-line-timer nil)
 144 (defvar org-clock-heading "")
 145 (defvar org-clock-heading-for-remember "")
 146 (defvar org-clock-start-time "")
 147
 148 (defvar org-clock-history nil
 149   "List of marker pointing to recent clocked tasks.")
 150
 151 (defvar org-clock-default-task (make-marker)
 152   "Marker pointing to the default task that should clock time.
 153 The clock can be made to switch to this task after clocking out
 154 of a different task.")
 155
 156 (defvar org-clock-interrupted-task (make-marker)
 157   "Marker pointing to the task that has been interrupted by the current clock.")
 158
 159 (defvar org-clock-mode-map (make-sparse-keymap))
 160 (define-key org-clock-mode-map [mode-line mouse-2] 'org-clock-goto)
 161
 162 (defun org-clock-history-push (&optional pos buffer)
 163   "Push a marker to the clock history."
 164   (setq org-clock-history-length (max 1 (min 35 org-clock-history-length)))
 165   (let ((m (move-marker (make-marker) (or pos (point)) buffer)) n l)
 166     (while (setq n (member m org-clock-history))
 167       (move-marker (car n) nil))
 168     (setq org-clock-history
 169           (delq nil
 170                 (mapcar (lambda (x) (if (marker-buffer x) x nil))
 171                         org-clock-history)))
 172     (when (>= (setq l (length org-clock-history)) org-clock-history-length)
 173       (setq org-clock-history
 174             (nreverse
 175              (nthcdr (- l org-clock-history-length -1)
 176                      (nreverse org-clock-history)))))
 177     (push m org-clock-history)))
 178
 179 (defun org-clock-save-markers-for-cut-and-paste (beg end)
 180   "Save relative positions of markers in region."
 181   (org-check-and-save-marker org-clock-marker beg end)
 182   (org-check-and-save-marker org-clock-default-task beg end)
 183   (org-check-and-save-marker org-clock-interrupted-task beg end)
 184   (mapc (lambda (m) (org-check-and-save-marker m beg end))
 185         org-clock-history))
 186
 187 (defun org-clock-select-task (&optional prompt)
 188   "Select a task that recently was associated with clocking."
 189   (interactive)
 190   (let (sel-list rpl file task (i 0) s)
 191     (save-window-excursion
 192       (org-switch-to-buffer-other-window
 193        (get-buffer-create "*Clock Task Select*"))
 194       (erase-buffer)
 195       (when (marker-buffer org-clock-default-task)
 196         (insert (org-add-props "Default Task\n" nil 'face 'bold))
 197         (setq s (org-clock-insert-selection-line ?d org-clock-default-task))
 198         (push s sel-list))
 199       (when (marker-buffer org-clock-interrupted-task)
 200         (insert (org-add-props "The task interrupted by starting the last one\n" nil 'face 'bold))
 201         (setq s (org-clock-insert-selection-line ?i org-clock-interrupted-task))
 202         (push s sel-list))
 203       (when (marker-buffer org-clock-marker)
 204         (insert (org-add-props "Current Clocking Task\n" nil 'face 'bold))
 205         (setq s (org-clock-insert-selection-line ?c org-clock-marker))
 206         (push s sel-list))
 207       (insert (org-add-props "Recent Tasks\n" nil 'face 'bold))
 208       (mapc
 209        (lambda (m)
 210          (when (marker-buffer m)
 211            (setq i (1+ i)
 212                  s (org-clock-insert-selection-line
 213                     (if (< i 10)
 214                         (+ i ?0)
 215                       (+ i (- ?A 10))) m))
 216            (push s sel-list)))
 217        org-clock-history)
 218       (org-fit-window-to-buffer)
 219       (message (or prompt "Select task for clocking:"))
 220       (setq rpl (read-char-exclusive))
 221       (cond
 222        ((eq rpl ?q) nil)
 223        ((eq rpl ?x) nil)
 224        ((assoc rpl sel-list) (cdr (assoc rpl sel-list)))
 225        (t (error "Invalid task choice %c" rpl))))))
 226
 227 (defun org-clock-insert-selection-line (i marker)
 228   (when (marker-buffer marker)
 229     (let (file cat task)
 230       (with-current-buffer (org-base-buffer (marker-buffer marker))
 231         (save-excursion
 232           (save-restriction
 233             (widen)
 234             (goto-char marker)
 235             (setq file (buffer-file-name (marker-buffer marker))
 236                   cat (or (org-get-category)
 237                           (progn (org-refresh-category-properties)
 238                                  (org-get-category)))
 239                   task (org-get-heading 'notags)))))
 240       (when (and cat task)
 241         (insert (format "[%c] %-15s %s\n" i cat task))
 242         (cons i marker)))))
 243
 244 (defun org-update-mode-line ()
 245   (let* ((delta (- (time-to-seconds (current-time))
 246                    (time-to-seconds org-clock-start-time)))
 247          (h (floor delta 3600))
 248          (m (floor (- delta (* 3600 h)) 60)))
 249     (setq org-mode-line-string
 250           (org-propertize
 251            (let ((clock-string (format (concat "-[" org-time-clocksum-format " (%s)]")
 252                                        h m org-clock-heading))
 253                  (help-text "Org-mode clock is running. Mouse-2 to go there."))
 254              (if (and (> org-clock-string-limit 0)
 255                       (> (length clock-string) org-clock-string-limit))
 256                  (org-propertize (substring clock-string 0 org-clock-string-limit)
 257                              'help-echo (concat help-text ": " org-clock-heading))
 258                (org-propertize clock-string 'help-echo help-text)))
 259            'local-map org-clock-mode-map
 260            'mouse-face (if (featurep 'xemacs) 'highlight 'mode-line-highlight)))
 261     (force-mode-line-update)))
 262
 263 (defvar org-clock-mode-line-entry nil
 264   "Information for the modeline about the running clock.")
 265
 266 (defun org-clock-in (&optional select)
 267   "Start the clock on the current item.
 268 If necessary, clock-out of the currently active clock.
 269 With prefix arg SELECT, offer a list of recently clocked tasks to
 270 clock into.  When SELECT is `C-u C-u', clock into the current task and mark
 271 is as the default task, a special task that will always be offered in
 272 the clocking selection, associated with the letter `d'."
 273   (interactive "P")
 274   (catch 'abort
 275     (let ((interrupting (marker-buffer org-clock-marker))
 276           ts selected-task target-pos)
 277       (when (equal select '(4))
 278         (setq selected-task (org-clock-select-task "Clock-in on task: "))
 279         (if selected-task
 280             (setq selected-task (copy-marker selected-task))
 281           (error "Abort")))
 282       (when interrupting
 283         ;; We are interrupting the clocking of a different task.
 284         ;; Save a marker to this task, so that we can go back.
 285         (move-marker org-clock-interrupted-task
 286                      (marker-position org-clock-marker)
 287                      (marker-buffer org-clock-marker))
 288         (org-clock-out t))
 289
 290       (when (equal select '(16))
 291         ;; Mark as default clocking task
 292         (save-excursion
 293           (org-back-to-heading t)
 294           (move-marker org-clock-default-task (point))))
 295
 296       (setq target-pos (point))  ;; we want to clock in at this location
 297       (save-excursion
 298         (when (and selected-task (marker-buffer selected-task))
 299           ;; There is a selected task, move to the correct buffer
 300           ;; and set the new target position.
 301           (set-buffer (org-base-buffer (marker-buffer selected-task)))
 302           (setq target-pos (marker-position selected-task))
 303           (move-marker selected-task nil))
 304         (save-excursion
 305           (save-restriction
 306             (widen)
 307             (goto-char target-pos)
 308             (org-back-to-heading t)
 309             (or interrupting (move-marker org-clock-interrupted-task nil))
 310             (org-clock-history-push)
 311             (cond ((functionp org-clock-in-switch-to-state)
 312                    (looking-at org-complex-heading-regexp)
 313                    (let ((newstate (funcall org-clock-in-switch-to-state
 314                                             (match-string 2))))
 315                      (if newstate (org-todo newstate))))
 316                   ((and org-clock-in-switch-to-state
 317                         (not (looking-at (concat outline-regexp "[ \t]*"
 318                                                  org-clock-in-switch-to-state
 319                                                  "\\>"))))
 320                    (org-todo org-clock-in-switch-to-state)))
 321             (setq org-clock-heading-for-remember
 322                   (and (looking-at org-complex-heading-regexp)
 323                        (match-end 4)
 324                        (org-trim (buffer-substring (match-end 1)
 325                                                    (match-end 4)))))
 326             (setq org-clock-heading
 327                   (cond ((and org-clock-heading-function
 328                               (functionp org-clock-heading-function))
 329                          (funcall org-clock-heading-function))
 330                         ((looking-at org-complex-heading-regexp)
 331                          (match-string 4))
 332                         (t "???")))
 333             (setq org-clock-heading (org-propertize org-clock-heading
 334                                                     'face nil))
 335             (org-clock-find-position)
 336             (cond
 337              ((and org-clock-in-resume
 338                    (looking-at
 339                     (concat "^[ \\t]* " org-clock-string
 340                             " \\[\\([0-9]\\{4\\}-[0-9]\\{2\\}-[0-9]\\{2\\}"
 341                             " +\\sw+ +[012][0-9]:[0-5][0-9]\\)\\][ \t]*$")))
 342               (message "Matched %s" (match-string 1))
 343               (setq ts (concat "[" (match-string 1) "]"))
 344               (goto-char (match-end 1))
 345               (setq org-clock-start-time
 346                     (apply 'encode-time
 347                            (org-parse-time-string (match-string 1)))))
 348              ((eq org-clock-in-resume 'auto-restart)
 349               ;; called from org-clock-load during startup,
 350               ;; do not interrupt, but warn!
 351               (message "Cannot restart clock because task does not contain unfinished clock")
 352               (ding)
 353               (sit-for 2)
 354               (throw 'abort nil))
 355              (t
 356               (insert "\n") (backward-char 1)
 357               (org-indent-line-function)
 358               (insert org-clock-string " ")
 359               (setq org-clock-start-time (current-time))
 360               (setq ts (org-insert-time-stamp org-clock-start-time 'with-hm 'inactive))))
 361             (move-marker org-clock-marker (point) (buffer-base-buffer))
 362             (or global-mode-string (setq global-mode-string '("")))
 363             (or (memq 'org-mode-line-string global-mode-string)
 364                 (setq global-mode-string
 365                       (append global-mode-string '(org-mode-line-string))))
 366             (org-update-mode-line)
 367             (setq org-mode-line-timer
 368                   (run-with-timer 60 60 'org-update-mode-line))
 369             (message "Clock started at %s" ts)))))))
 370
 371 (defun org-clock-find-position ()
 372   "Find the location where the next clock line should be inserted."
 373   (org-back-to-heading t)
 374   (catch 'exit
 375     (let ((beg (save-excursion
 376                  (beginning-of-line 2)
 377                  (or (bolp) (newline))
 378                  (point)))
 379           (end (progn (outline-next-heading) (point)))
 380           (re (concat "^[ \t]*" org-clock-string))
 381           (cnt 0)
 382           first last)
 383       (goto-char beg)
 384       (when (eobp) (newline) (setq end (max (point) end)))
 385       (when (re-search-forward "^[ \t]*:CLOCK:" end t)
 386         ;; we seem to have a CLOCK drawer, so go there.
 387         (beginning-of-line 2)
 388         (throw 'exit t))
 389       ;; Lets count the CLOCK lines
 390       (goto-char beg)
 391       (while (re-search-forward re end t)
 392         (setq first (or first (match-beginning 0))
 393               last (match-beginning 0)
 394               cnt (1+ cnt)))
 395       (when (and (integerp org-clock-into-drawer)
 396                  (>= (1+ cnt) org-clock-into-drawer))
 397         ;; Wrap current entries into a new drawer
 398         (goto-char last)
 399         (beginning-of-line 2)
 400         (if (org-at-item-p) (org-end-of-item))
 401         (insert ":END:\n")
 402         (beginning-of-line 0)
 403         (org-indent-line-function)
 404         (goto-char first)
 405         (insert ":CLOCK:\n")
 406         (beginning-of-line 0)
 407         (org-indent-line-function)
 408         (org-flag-drawer t)
 409         (beginning-of-line 2)
 410         (throw 'exit nil))
 411
 412       (goto-char beg)
 413       (while (and (looking-at (concat "[ \t]*" org-keyword-time-regexp))
 414                   (not (equal (match-string 1) org-clock-string)))
 415         ;; Planning info, skip to after it
 416         (beginning-of-line 2)
 417         (or (bolp) (newline)))
 418       (when (eq t org-clock-into-drawer)
 419         (insert ":CLOCK:\n:END:\n")
 420         (beginning-of-line 0)
 421         (org-indent-line-function)
 422         (beginning-of-line 0)
 423         (org-flag-drawer t)
 424         (org-indent-line-function)
 425         (beginning-of-line 2)))))
 426
 427 (defun org-clock-out (&optional fail-quietly)
 428   "Stop the currently running clock.
 429 If there is no running clock, throw an error, unless FAIL-QUIETLY is set."
 430   (interactive)
 431   (catch 'exit
 432   (if (not (marker-buffer org-clock-marker))
 433       (if fail-quietly (throw 'exit t) (error "No active clock")))
 434   (let (ts te s h m remove)
 435     (save-excursion
 436       (set-buffer (marker-buffer org-clock-marker))
 437       (save-restriction
 438         (widen)
 439         (goto-char org-clock-marker)
 440         (beginning-of-line 1)
 441         (if (and (looking-at (concat "[ \t]*" org-keyword-time-regexp))
 442                  (equal (match-string 1) org-clock-string))
 443             (setq ts (match-string 2))
 444           (if fail-quietly (throw 'exit nil) (error "Clock start time is gone")))
 445         (goto-char (match-end 0))
 446         (delete-region (point) (point-at-eol))
 447         (insert "--")
 448         (setq te (org-insert-time-stamp (current-time) 'with-hm 'inactive))
 449         (setq s (- (time-to-seconds (apply 'encode-time (org-parse-time-string te)))
 450                    (time-to-seconds (apply 'encode-time (org-parse-time-string ts))))
 451               h (floor (/ s 3600))
 452               s (- s (* 3600 h))
 453               m (floor (/ s 60))
 454               s (- s (* 60 s)))
 455         (insert " => " (format "%2d:%02d" h m))
 456         (when (setq remove (and org-clock-out-remove-zero-time-clocks
 457                                 (= (+ h m) 0)))
 458           (beginning-of-line 1)
 459           (delete-region (point) (point-at-eol))
 460           (and (looking-at "\n") (> (point-max) (1+ (point)))
 461                (delete-char 1)))
 462         (move-marker org-clock-marker nil)
 463         (when org-log-note-clock-out
 464           (org-add-log-setup 'clock-out nil nil nil
 465                              (concat "# Task: " (org-get-heading t) "\n\n")))
 466         (when org-mode-line-timer
 467           (cancel-timer org-mode-line-timer)
 468           (setq org-mode-line-timer nil))
 469         (setq global-mode-string
 470               (delq 'org-mode-line-string global-mode-string))
 471         (force-mode-line-update)
 472         (message (concat "Clock stopped at %s after HH:MM = " org-time-clocksum-format "%s") te h m
 473                  (if remove " => LINE REMOVED" "")))))))
 474
 475 (defun org-clock-cancel ()
 476   "Cancel the running clock be removing the start timestamp."
 477   (interactive)
 478   (if (not (marker-buffer org-clock-marker))
 479       (error "No active clock"))
 480   (save-excursion
 481     (set-buffer (marker-buffer org-clock-marker))
 482     (goto-char org-clock-marker)
 483     (delete-region (1- (point-at-bol)) (point-at-eol)))
 484   (setq global-mode-string
 485         (delq 'org-mode-line-string global-mode-string))
 486   (force-mode-line-update)
 487   (message "Clock canceled"))
 488
 489 (defun org-clock-goto (&optional select)
 490   "Go to the currently clocked-in entry.
 491 With prefix arg SELECT, offer recently clocked tasks."
 492   (interactive "P")
 493   (let ((m (if select
 494                (org-clock-select-task "Select task to go to: ")
 495              org-clock-marker)))
 496     (if (not (marker-buffer m))
 497         (if select
 498             (error "No task selected")
 499           (error "No active clock")))
 500     (switch-to-buffer (marker-buffer m))
 501     (if (or (< m (point-min)) (> m (point-max))) (widen))
 502     (goto-char m)
 503     (org-show-entry)
 504     (org-back-to-heading)
 505     (org-cycle-hide-drawers 'children)
 506     (recenter)))
 507
 508 (defvar org-clock-file-total-minutes nil
 509   "Holds the file total time in minutes, after a call to `org-clock-sum'.")
 510   (make-variable-buffer-local 'org-clock-file-total-minutes)
 511
 512 (defun org-clock-sum (&optional tstart tend)
 513   "Sum the times for each subtree.
 514 Puts the resulting times in minutes as a text property on each headline."
 515   (interactive)
 516   (let* ((bmp (buffer-modified-p))
 517          (re (concat "^\\(\\*+\\)[ \t]\\|^[ \t]*"
 518                      org-clock-string
 519                      "[ \t]*\\(?:\\(\\[.*?\\]\\)-+\\(\\[.*?\\]\\)\\|=>[ \t]+\\([0-9]+\\):\\([0-9]+\\)\\)"))
 520          (lmax 30)
 521          (ltimes (make-vector lmax 0))
 522          (t1 0)
 523          (level 0)
 524          ts te dt
 525          time)
 526     (remove-text-properties (point-min) (point-max) '(:org-clock-minutes t))
 527     (save-excursion
 528       (goto-char (point-max))
 529       (while (re-search-backward re nil t)
 530         (cond
 531          ((match-end 2)
 532           ;; Two time stamps
 533           (setq ts (match-string 2)
 534                 te (match-string 3)
 535                 ts (time-to-seconds
 536                     (apply 'encode-time (org-parse-time-string ts)))
 537                 te (time-to-seconds
 538                     (apply 'encode-time (org-parse-time-string te)))
 539                 ts (if tstart (max ts tstart) ts)
 540                 te (if tend (min te tend) te)
 541                 dt (- te ts)
 542                 t1 (if (> dt 0) (+ t1 (floor (/ dt 60))) t1)))
 543          ((match-end 4)
 544           ;; A naked time
 545           (setq t1 (+ t1 (string-to-number (match-string 5))
 546                       (* 60 (string-to-number (match-string 4))))))
 547          (t ;; A headline
 548           (setq level (- (match-end 1) (match-beginning 1)))
 549           (when (or (> t1 0) (> (aref ltimes level) 0))
 550             (loop for l from 0 to level do
 551                   (aset ltimes l (+ (aref ltimes l) t1)))
 552             (setq t1 0 time (aref ltimes level))
 553             (loop for l from level to (1- lmax) do
 554                   (aset ltimes l 0))
 555             (goto-char (match-beginning 0))
 556             (put-text-property (point) (point-at-eol) :org-clock-minutes time)))))
 557       (setq org-clock-file-total-minutes (aref ltimes 0)))
 558     (set-buffer-modified-p bmp)))
 559
 560 (defun org-clock-display (&optional total-only)
 561   "Show subtree times in the entire buffer.
 562 If TOTAL-ONLY is non-nil, only show the total time for the entire file
 563 in the echo area."
 564   (interactive)
 565   (org-remove-clock-overlays)
 566   (let (time h m p)
 567     (org-clock-sum)
 568     (unless total-only
 569       (save-excursion
 570         (goto-char (point-min))
 571         (while (or (and (equal (setq p (point)) (point-min))
 572                         (get-text-property p :org-clock-minutes))
 573                    (setq p (next-single-property-change
 574                             (point) :org-clock-minutes)))
 575           (goto-char p)
 576           (when (setq time (get-text-property p :org-clock-minutes))
 577             (org-put-clock-overlay time (funcall outline-level))))
 578         (setq h (/ org-clock-file-total-minutes 60)
 579               m (- org-clock-file-total-minutes (* 60 h)))
 580         ;; Arrange to remove the overlays upon next change.
 581         (when org-remove-highlights-with-change
 582           (org-add-hook 'before-change-functions 'org-remove-clock-overlays
 583                         nil 'local))))
 584     (message (concat "Total file time: " org-time-clocksum-format " (%d hours and %d minutes)") h m h m)))
 585
 586 (defvar org-clock-overlays nil)
 587 (make-variable-buffer-local 'org-clock-overlays)
 588
 589 (defun org-put-clock-overlay (time &optional level)
 590   "Put an overlays on the current line, displaying TIME.
 591 If LEVEL is given, prefix time with a corresponding number of stars.
 592 This creates a new overlay and stores it in `org-clock-overlays', so that it
 593 will be easy to remove."
 594   (let* ((c 60) (h (floor (/ time 60))) (m (- time (* 60 h)))
 595          (l (if level (org-get-valid-level level 0) 0))
 596          (fmt (concat "%s " org-time-clocksum-format "%s"))
 597          (off 0)
 598          ov tx)
 599     (org-move-to-column c)
 600     (unless (eolp) (skip-chars-backward "^ \t"))
 601     (skip-chars-backward " \t")
 602     (setq ov (org-make-overlay (1- (point)) (point-at-eol))
 603           tx (concat (buffer-substring (1- (point)) (point))
 604                      (make-string (+ off (max 0 (- c (current-column)))) ?.)
 605                      (org-add-props (format fmt
 606                                             (make-string l ?*) h m
 607                                             (make-string (- 16 l) ?\ ))
 608                          '(face secondary-selection))
 609                      ""))
 610     (if (not (featurep 'xemacs))
 611         (org-overlay-put ov 'display tx)
 612       (org-overlay-put ov 'invisible t)
 613       (org-overlay-put ov 'end-glyph (make-glyph tx)))
 614     (push ov org-clock-overlays)))
 615
 616 (defun org-remove-clock-overlays (&optional beg end noremove)
 617   "Remove the occur highlights from the buffer.
 618 BEG and END are ignored.  If NOREMOVE is nil, remove this function
 619 from the `before-change-functions' in the current buffer."
 620   (interactive)
 621   (unless org-inhibit-highlight-removal
 622     (mapc 'org-delete-overlay org-clock-overlays)
 623     (setq org-clock-overlays nil)
 624     (unless noremove
 625       (remove-hook 'before-change-functions
 626                    'org-remove-clock-overlays 'local))))
 627
 628 (defvar state) ;; dynamically scoped into this function
 629 (defun org-clock-out-if-current ()
 630   "Clock out if the current entry contains the running clock.
 631 This is used to stop the clock after a TODO entry is marked DONE,
 632 and is only done if the variable `org-clock-out-when-done' is not nil."
 633   (when (and org-clock-out-when-done
 634              (member state org-done-keywords)
 635              (equal (marker-buffer org-clock-marker) (current-buffer))
 636              (< (point) org-clock-marker)
 637              (> (save-excursion (outline-next-heading) (point))
 638                 org-clock-marker))
 639     ;; Clock out, but don't accept a logging message for this.
 640     (let ((org-log-note-clock-out nil))
 641       (org-clock-out))))
 642
 643 (add-hook 'org-after-todo-state-change-hook
 644           'org-clock-out-if-current)
 645
 646 ;;;###autoload
 647 (defun org-get-clocktable (&rest props)
 648   "Get a formatted clocktable with parameters according to PROPS.
 649 The table is created in a temporary buffer, fully formatted and
 650 fontified, and then returned."
 651   ;; Set the defaults
 652   (setq props (plist-put props :name "clocktable"))
 653   (unless (plist-member props :maxlevel)
 654     (setq props (plist-put props :maxlevel 2)))
 655   (unless (plist-member props :scope)
 656     (setq props (plist-put props :scope 'agenda)))
 657   (with-temp-buffer
 658     (org-mode)
 659     (org-create-dblock props)
 660     (org-update-dblock)
 661     (font-lock-fontify-buffer)
 662     (forward-line 2)
 663     (buffer-substring (point) (progn
 664                                 (re-search-forward "^#\\+END" nil t)
 665                                 (point-at-bol)))))
 666
 667 (defun org-clock-report (&optional arg)
 668   "Create a table containing a report about clocked time.
 669 If the cursor is inside an existing clocktable block, then the table
 670 will be updated.  If not, a new clocktable will be inserted.
 671 When called with a prefix argument, move to the first clock table in the
 672 buffer and update it."
 673   (interactive "P")
 674   (org-remove-clock-overlays)
 675   (when arg
 676     (org-find-dblock "clocktable")
 677     (org-show-entry))
 678   (if (org-in-clocktable-p)
 679       (goto-char (org-in-clocktable-p))
 680     (org-create-dblock (list :name "clocktable"
 681                              :maxlevel 2 :scope 'file)))
 682   (org-update-dblock))
 683
 684 (defun org-in-clocktable-p ()
 685   "Check if the cursor is in a clocktable."
 686   (let ((pos (point)) start)
 687     (save-excursion
 688       (end-of-line 1)
 689       (and (re-search-backward "^#\\+BEGIN:[ \t]+clocktable" nil t)
 690            (setq start (match-beginning 0))
 691            (re-search-forward "^#\\+END:.*" nil t)
 692            (>= (match-end 0) pos)
 693            start))))
 694
 695 (defun org-clock-special-range (key &optional time as-strings)
 696   "Return two times bordering a special time range.
 697 Key is a symbol specifying the range and can be one of `today', `yesterday',
 698 `thisweek', `lastweek', `thismonth', `lastmonth', `thisyear', `lastyear'.
 699 A week starts Monday 0:00 and ends Sunday 24:00.
 700 The range is determined relative to TIME.  TIME defaults to the current time.
 701 The return value is a cons cell with two internal times like the ones
 702 returned by `current time' or `encode-time'. if AS-STRINGS is non-nil,
 703 the returned times will be formatted strings."
 704   (if (integerp key) (setq key (intern (number-to-string key))))
 705   (let* ((tm (decode-time (or time (current-time))))
 706          (s 0) (m (nth 1 tm)) (h (nth 2 tm))
 707          (d (nth 3 tm)) (month (nth 4 tm)) (y (nth 5 tm))
 708          (dow (nth 6 tm))
 709          (skey (symbol-name key))
 710          (shift 0)
 711          s1 m1 h1 d1 month1 y1 diff ts te fm txt w date)
 712     (cond
 713      ((string-match "^[0-9]+$" skey)
 714       (setq y (string-to-number skey) m 1 d 1 key 'year))
 715      ((string-match "^\\([0-9]+\\)-\\([0-9]\\{1,2\\}\\)$" skey)
 716       (setq y (string-to-number (match-string 1 skey))
 717             month (string-to-number (match-string 2 skey))
 718             d 1 key 'month))
 719      ((string-match "^\\([0-9]+\\)-[wW]\\([0-9]\\{1,2\\}\\)$" skey)
 720       (require 'cal-iso)
 721       (setq y (string-to-number (match-string 1 skey))
 722             w (string-to-number (match-string 2 skey)))
 723       (setq date (calendar-gregorian-from-absolute
 724                   (calendar-absolute-from-iso (list w 1 y))))
 725       (setq d (nth 1 date) month (car date) y (nth 2 date)
 726             key 'week))
 727      ((string-match "^\\([0-9]+\\)-\\([0-9]\\{1,2\\}\\)-\\([0-9]\\{1,2\\}\\)$" skey)
 728       (setq y (string-to-number (match-string 1 skey))
 729             month (string-to-number (match-string 2 skey))
 730             d (string-to-number (match-string 3 skey))
 731             key 'day))
 732      ((string-match "\\([-+][0-9]+\\)$" skey)
 733       (setq shift (string-to-number (match-string 1 skey))
 734             key (intern (substring skey 0 (match-beginning 1))))))
 735     (when (= shift 0)
 736       (cond ((eq key 'yesterday) (setq key 'today shift -1))
 737             ((eq key 'lastweek)  (setq key 'week  shift -1))
 738             ((eq key 'lastmonth) (setq key 'month shift -1))
 739             ((eq key 'lastyear)  (setq key 'year  shift -1))))
 740     (cond
 741      ((memq key '(day today))
 742       (setq d (+ d shift) h 0 m 0 h1 24 m1 0))
 743      ((memq key '(week thisweek))
 744       (setq diff (+ (* -7 shift) (if (= dow 0) 6 (1- dow)))
 745             m 0 h 0 d (- d diff) d1 (+ 7 d)))
 746      ((memq key '(month thismonth))
 747       (setq d 1 h 0 m 0 d1 1 month (+ month shift) month1 (1+ month) h1 0 m1 0))
 748      ((memq key '(year thisyear))
 749       (setq m 0 h 0 d 1 month 1 y (+ y shift) y1 (1+ y)))
 750      (t (error "No such time block %s" key)))
 751     (setq ts (encode-time s m h d month y)
 752           te (encode-time (or s1 s) (or m1 m) (or h1 h)
 753                           (or d1 d) (or month1 month) (or y1 y)))
 754     (setq fm (cdr org-time-stamp-formats))
 755     (cond
 756      ((memq key '(day today))
 757       (setq txt (format-time-string "%A, %B %d, %Y" ts)))
 758      ((memq key '(week thisweek))
 759       (setq txt (format-time-string "week %G-W%V" ts)))
 760      ((memq key '(month thismonth))
 761       (setq txt (format-time-string "%B %Y" ts)))
 762      ((memq key '(year thisyear))
 763       (setq txt (format-time-string "the year %Y" ts))))
 764     (if as-strings
 765         (list (format-time-string fm ts) (format-time-string fm te) txt)
 766       (list ts te txt))))
 767
 768 (defun org-clocktable-shift (dir n)
 769   "Try to shift the :block date of the clocktable at point.
 770 Point must be in the #+BEGIN: line of a clocktable, or this function
 771 will throw an error.
 772 DIR is a direction, a symbol `left', `right', `up', or `down'.
 773 Both `left' and `down' shift the block toward the past, `up' and `right'
 774 push it toward the future.
 775 N is the number of shift steps to take.  The size of the step depends on
 776 the currently selected interval size."
 777   (setq n (prefix-numeric-value n))
 778   (and (memq dir '(left down)) (setq n (- n)))
 779   (save-excursion
 780     (goto-char (point-at-bol))
 781     (if (not (looking-at "#\\+BEGIN: clocktable\\>.*?:block[ \t]+\\(\\S-+\\)"))
 782         (error "Line needs a :block definition before this command works")
 783       (let* ((b (match-beginning 1)) (e (match-end 1))
 784              (s (match-string 1))
 785              block shift ins y mw d date wp m)
 786         (cond
 787          ((equal s "yesterday") (setq s "today-1"))
 788          ((equal s "lastweek") (setq s "thisweek-1"))
 789          ((equal s "lastmonth") (setq s "thismonth-1"))
 790          ((equal s "lastyear") (setq s "thisyear-1")))
 791         (cond
 792          ((string-match "^\\(today\\|thisweek\\|thismonth\\|thisyear\\)\\([-+][0-9]+\\)?$" s)
 793           (setq block (match-string 1 s)
 794                 shift (if (match-end 2)
 795                           (string-to-number (match-string 2 s))
 796                         0))
 797           (setq shift (+ shift n))
 798           (setq ins (if (= shift 0) block (format "%s%+d" block shift))))
 799          ((string-match "\\([0-9]+\\)\\(-\\([wW]?\\)\\([0-9]\\{1,2\\}\\)\\(-\\([0-9]\\{1,2\\}\\)\\)?\\)?" s)
 800           ;;               1        1  2   3       3  4                4  5   6                6  5   2
 801           (setq y (string-to-number (match-string 1 s))
 802                 wp (and (match-end 3) (match-string 3 s))
 803                 mw (and (match-end 4) (string-to-number (match-string 4 s)))
 804                 d (and (match-end 6) (string-to-number (match-string 6 s))))
 805           (cond
 806            (d (setq ins (format-time-string
 807                          "%Y-%m-%d"
 808                          (encode-time 0 0 0 (+ d n) m y))))
 809            ((and wp mw (> (length wp) 0))
 810             (require 'cal-iso)
 811             (setq date (calendar-gregorian-from-absolute (calendar-absolute-from-iso (list (+ mw n) 1 y))))
 812             (setq ins (format-time-string
 813                        "%G-W%V"
 814                        (encode-time 0 0 0 (nth 1 date) (car date) (nth 2 date)))))
 815            (mw
 816             (setq ins (format-time-string
 817                        "%Y-%m"
 818                        (encode-time 0 0 0 1 (+ mw n) y))))
 819            (y
 820             (setq ins (number-to-string (+ y n))))))
 821          (t (error "Cannot shift clocktable block")))
 822         (when ins
 823           (goto-char b)
 824           (insert ins)
 825           (delete-region (point) (+ (point) (- e b)))
 826           (beginning-of-line 1)
 827           (org-update-dblock)
 828           t)))))
 829
 830 (defun org-dblock-write:clocktable (params)
 831   "Write the standard clocktable."
 832   (catch 'exit
 833     (let* ((hlchars '((1 . "*") (2 . "/")))
 834            (ins (make-marker))
 835            (total-time nil)
 836            (scope (plist-get params :scope))
 837            (tostring (plist-get  params :tostring))
 838            (multifile (plist-get  params :multifile))
 839            (header (plist-get  params :header))
 840            (maxlevel (or (plist-get params :maxlevel) 3))
 841            (step (plist-get params :step))
 842            (emph (plist-get params :emphasize))
 843            (ts (plist-get params :tstart))
 844            (te (plist-get params :tend))
 845            (block (plist-get params :block))
 846            (link (plist-get params :link))
 847            ipos time p level hlc hdl content recalc formula pcol
 848            cc beg end pos tbl tbl1 range-text rm-file-column scope-is-list st)
 849       (setq org-clock-file-total-minutes nil)
 850       (when step
 851         (unless (or block (and ts te))
 852           (error "Clocktable `:step' can only be used with `:block' or `:tstart,:end'"))
 853         (org-clocktable-steps params)
 854         (throw 'exit nil))
 855       (when block
 856         (setq cc (org-clock-special-range block nil t)
 857               ts (car cc) te (nth 1 cc) range-text (nth 2 cc)))
 858       (when (integerp ts) (setq ts (calendar-gregorian-from-absolute ts)))
 859       (when (integerp te) (setq te (calendar-gregorian-from-absolute te)))
 860       (when (and ts (listp ts))
 861         (setq ts (format "%4d-%02d-%02d" (nth 2 ts) (car ts) (nth 1 ts))))
 862       (when (and te (listp te))
 863         (setq te (format "%4d-%02d-%02d" (nth 2 te) (car te) (nth 1 te))))
 864       ;; Now the times are strings we can parse.
 865       (if ts (setq ts (time-to-seconds
 866                        (apply 'encode-time (org-parse-time-string ts)))))
 867       (if te (setq te (time-to-seconds
 868                        (apply 'encode-time (org-parse-time-string te)))))
 869       (move-marker ins (point))
 870       (setq ipos (point))
 871
 872       ;; Get the right scope
 873       (setq pos (point))
 874       (cond
 875        ((and scope (listp scope) (symbolp (car scope)))
 876         (setq scope (eval scope)))
 877        ((eq scope 'agenda)
 878         (setq scope (org-agenda-files t)))
 879        ((eq scope 'agenda-with-archives)
 880         (setq scope (org-agenda-files t))
 881         (setq scope (org-add-archive-files scope)))
 882        ((eq scope 'file-with-archives)
 883         (setq scope (org-add-archive-files (list (buffer-file-name)))
 884               rm-file-column t)))
 885       (setq scope-is-list (and scope (listp scope)))
 886       (save-restriction
 887         (cond
 888          ((not scope))
 889          ((eq scope 'file) (widen))
 890          ((eq scope 'subtree) (org-narrow-to-subtree))
 891          ((eq scope 'tree)
 892           (while (org-up-heading-safe))
 893           (org-narrow-to-subtree))
 894          ((and (symbolp scope) (string-match "^tree\\([0-9]+\\)$"
 895                                              (symbol-name scope)))
 896           (setq level (string-to-number (match-string 1 (symbol-name scope))))
 897           (catch 'exit
 898             (while (org-up-heading-safe)
 899               (looking-at outline-regexp)
 900               (if (<= (org-reduced-level (funcall outline-level)) level)
 901                   (throw 'exit nil))))
 902           (org-narrow-to-subtree))
 903          (scope-is-list
 904           (let* ((files scope)
 905                  (scope 'agenda)
 906                  (p1 (copy-sequence params))
 907                  file)
 908             (setq p1 (plist-put p1 :tostring t))
 909             (setq p1 (plist-put p1 :multifile t))
 910             (setq p1 (plist-put p1 :scope 'file))
 911             (org-prepare-agenda-buffers files)
 912             (while (setq file (pop files))
 913               (with-current-buffer (find-buffer-visiting file)
 914                 (setq tbl1 (org-dblock-write:clocktable p1))
 915                 (when tbl1
 916                   (push (org-clocktable-add-file
 917                          file
 918                          (concat "| |*File time*|*"
 919                                  (org-minutes-to-hh:mm-string
 920                                   org-clock-file-total-minutes)
 921                                  "*|\n"
 922                                  tbl1)) tbl)
 923                   (setq total-time (+ (or total-time 0)
 924                                       org-clock-file-total-minutes))))))))
 925         (goto-char pos)
 926
 927         (unless scope-is-list
 928           (org-clock-sum ts te)
 929           (goto-char (point-min))
 930           (setq st t)
 931           (while (or (and (bobp) (prog1 st (setq st nil))
 932                           (get-text-property (point) :org-clock-minutes)
 933                           (setq p (point-min)))
 934                      (setq p (next-single-property-change (point) :org-clock-minutes)))
 935             (goto-char p)
 936             (when (setq time (get-text-property p :org-clock-minutes))
 937               (save-excursion
 938                 (beginning-of-line 1)
 939                 (when (and (looking-at (org-re "\\(\\*+\\)[ \t]+\\(.*?\\)\\([ \t]+:[[:alnum:]_@:]+:\\)?[ \t]*$"))
 940                            (setq level (org-reduced-level
 941                                         (- (match-end 1) (match-beginning 1))))
 942                            (<= level maxlevel))
 943                   (setq hlc (if emph (or (cdr (assoc level hlchars)) "") "")
 944                         hdl (if (not link)
 945                                 (match-string 2)
 946                               (org-make-link-string
 947                                (format "file:%s::%s"
 948                                        (buffer-file-name)
 949                                        (save-match-data
 950                                          (org-make-org-heading-search-string
 951                                           (match-string 2))))
 952                                (match-string 2))))
 953                   (if (and (not multifile) (= level 1)) (push "|-" tbl))
 954                   (push (concat
 955                          "| " (int-to-string level) "|" hlc hdl hlc " |"
 956                          (make-string (1- level) ?|)
 957                          hlc (org-minutes-to-hh:mm-string time) hlc
 958                          " |") tbl))))))
 959         (setq tbl (nreverse tbl))
 960         (if tostring
 961             (if tbl (mapconcat 'identity tbl "\n") nil)
 962           (goto-char ins)
 963           (insert-before-markers
 964            (or header
 965                (concat
 966                 "Clock summary at ["
 967                 (substring
 968                  (format-time-string (cdr org-time-stamp-formats))
 969                  1 -1)
 970                 "]"
 971                 (if block (concat ", for " range-text ".") "")
 972                 "\n\n"))
 973            (if scope-is-list "|File" "")
 974            "|L|Headline|Time|\n")
 975           (setq total-time (or total-time org-clock-file-total-minutes))
 976           (insert-before-markers
 977            "|-\n|"
 978            (if scope-is-list "|" "")
 979            "|"
 980            "*Total time*| *"
 981            (org-minutes-to-hh:mm-string (or total-time 0))
 982            "*|\n|-\n")
 983           (setq tbl (delq nil tbl))
 984           (if (and (stringp (car tbl)) (> (length (car tbl)) 1)
 985                    (equal (substring (car tbl) 0 2) "|-"))
 986               (pop tbl))
 987           (insert-before-markers (mapconcat
 988                                   'identity (delq nil tbl)
 989                                   (if scope-is-list "\n|-\n" "\n")))
 990           (backward-delete-char 1)
 991           (if (setq formula (plist-get params :formula))
 992               (cond
 993                ((eq formula '%)
 994                 (setq pcol (+ (if scope-is-list 1 0) maxlevel 3))
 995                 (insert
 996                  (format
 997                   "\n#+TBLFM: $%d='(org-clock-time%% @%d$%d $%d..$%d);%%.1f"
 998                   pcol
 999                   2
1000                   (+ 3 (if scope-is-list 1 0))
1001                   (+ (if scope-is-list 1 0) 3)
1002                   (1- pcol)))
1003                 (setq recalc t))
1004                ((stringp formula)
1005                 (insert "\n#+TBLFM: " formula)
1006                 (setq recalc t))
1007                (t (error "invalid formula in clocktable")))
1008             ;; Should we rescue an old formula?
1009             (when (stringp (setq content (plist-get params :content)))
1010               (when (string-match "^\\(#\\+TBLFM:.*\\)" content)
1011                 (setq recalc t)
1012                 (insert "\n" (match-string 1 (plist-get params :content)))
1013                 (beginning-of-line 0))))
1014           (goto-char ipos)
1015           (skip-chars-forward "^|")
1016           (org-table-align)
1017           (when recalc
1018             (if (eq formula '%)
1019                 (save-excursion (org-table-goto-column pcol nil 'force)
1020                                 (insert "%")))
1021             (org-table-recalculate 'all))
1022           (when rm-file-column
1023             (forward-char 1)
1024             (org-table-delete-column)))))))
1025
1026 (defun org-clocktable-steps (params)
1027   (let* ((p1 (copy-sequence params))
1028          (ts (plist-get p1 :tstart))
1029          (te (plist-get p1 :tend))
1030          (step0 (plist-get p1 :step))
1031          (step (cdr (assoc step0 '((day . 86400) (week . 604800)))))
1032          (block (plist-get p1 :block))
1033          cc range-text)
1034     (when block
1035       (setq cc (org-clock-special-range block nil t)
1036             ts (car cc) te (nth 1 cc) range-text (nth 2 cc)))
1037     (if ts (setq ts (time-to-seconds
1038                      (apply 'encode-time (org-parse-time-string ts)))))
1039     (if te (setq te (time-to-seconds
1040                      (apply 'encode-time (org-parse-time-string te)))))
1041     (setq p1 (plist-put p1 :header ""))
1042     (setq p1 (plist-put p1 :step nil))
1043     (setq p1 (plist-put p1 :block nil))
1044     (while (< ts te)
1045       (or (bolp) (insert "\n"))
1046       (setq p1 (plist-put p1 :tstart (format-time-string
1047                                       (car org-time-stamp-formats)
1048                                       (seconds-to-time ts))))
1049       (setq p1 (plist-put p1 :tend (format-time-string
1050                                     (car org-time-stamp-formats)
1051                                     (seconds-to-time (setq ts (+ ts step))))))
1052       (insert "\n" (if (eq step0 'day) "Daily report: " "Weekly report starting on: ")
1053               (plist-get p1 :tstart) "\n")
1054       (org-dblock-write:clocktable p1)
1055       (re-search-forward "#\\+END:")
1056       (end-of-line 0))))
1057
1058 (defun org-clocktable-add-file (file table)
1059   (if table
1060       (let ((lines (org-split-string table "\n"))
1061             (ff (file-name-nondirectory file)))
1062         (mapconcat 'identity
1063                    (mapcar (lambda (x)
1064                              (if (string-match org-table-dataline-regexp x)
1065                                  (concat "|" ff x)
1066                                x))
1067                            lines)
1068                    "\n"))))
1069
1070 (defun org-clock-time% (total &rest strings)
1071   "Compute a time fraction in percent.
1072 TOTAL s a time string like 10:21 specifying the total times.
1073 STRINGS is a list of strings that should be checked for a time.
1074 The first string that does have a time will be used.
1075 This function is made for clock tables."
1076   (let ((re "\\([0-9]+\\):\\([0-9]+\\)")
1077         tot s)
1078     (save-match-data
1079       (catch 'exit
1080         (if (not (string-match re total))
1081             (throw 'exit 0.)
1082           (setq tot (+ (string-to-number (match-string 2 total))
1083                        (* 60 (string-to-number (match-string 1 total)))))
1084           (if (= tot 0.) (throw 'exit 0.)))
1085         (while (setq s (pop strings))
1086           (if (string-match "\\([0-9]+\\):\\([0-9]+\\)" s)
1087               (throw 'exit
1088                      (/ (* 100.0 (+ (string-to-number (match-string 2 s))
1089                                     (* 60 (string-to-number (match-string 1 s)))))
1090                         tot))))
1091         0))))
1092
1093 (defun org-clock-save ()
1094   "Persist various clock-related data to disk.
1095 The details of what will be saved are regulated by the variable
1096 `org-clock-persist'."
1097   (when org-clock-persist
1098     (let (b)
1099       (with-current-buffer (find-file (expand-file-name org-clock-persist-file))
1100         (progn
1101           (delete-region (point-min) (point-max))
1102           ;;Store clock
1103           (insert (format ";; org-persist.el - %s at %s\n"
1104                           system-name (format-time-string
1105                                        (cdr org-time-stamp-formats))))
1106           (if (and (setq b (marker-buffer org-clock-marker))
1107                    (setq b (or (buffer-base-buffer b) b))
1108                    (buffer-live-p b)
1109                    (buffer-file-name b)
1110                    (or (not org-clock-persist-query-save)
1111                        (y-or-n-p (concat "Save current clock ("
1112                                          (substring-no-properties org-clock-heading)
1113                                          ") "))))
1114               (insert "(setq resume-clock '(\""
1115                       (buffer-file-name (marker-buffer org-clock-marker))
1116                       "\" . " (int-to-string (marker-position org-clock-marker))
1117                       "))\n"))
1118           ;; Store clocked task history. Tasks are stored reversed to make
1119           ;; reading simpler
1120           (when (and org-clock-history (eq org-clock-persist t))
1121             (insert
1122              "(setq stored-clock-history '("
1123              (mapconcat
1124               (lambda (m)
1125                 (when (and (setq b (marker-buffer m))
1126                            (setq b (or (buffer-base-buffer b) b))
1127                            (buffer-live-p b)
1128                            (buffer-file-name b))
1129                   (concat "(\"" (buffer-file-name b)
1130                           "\" . " (int-to-string (marker-position m))
1131                           ")")))
1132               (reverse org-clock-history) " ") "))\n"))
1133           (save-buffer)
1134           (kill-buffer (current-buffer)))))))
1135
1136 (defvar org-clock-loaded nil
1137   "Was the clock file loaded?")
1138
1139 (defun org-clock-load ()
1140   "Load various clock-related data from disk, optionally resuming
1141 a stored clock"
1142   (when (and org-clock-persist (not org-clock-loaded))
1143     (let ((filename (expand-file-name org-clock-persist-file))
1144           (org-clock-in-resume 'auto-restart)
1145           resume-clock stored-clock-history)
1146       (if (not (file-readable-p filename))
1147           (message "Not restoring clock data; %s not found"
1148                    org-clock-persist-file)
1149         (message "%s" "Restoring clock data")
1150         (setq org-clock-loaded t)
1151         (load-file filename)
1152         ;; load history
1153         (when stored-clock-history
1154           (save-window-excursion
1155             (mapc (lambda (task)
1156                     (if (file-exists-p (car task))
1157                         (org-clock-history-push (cdr task)
1158                                                 (find-file (car task)))))
1159                   stored-clock-history)))
1160         ;; resume clock
1161         (when (and resume-clock org-clock-persist
1162                    (file-exists-p (car resume-clock))
1163                    (or (not org-clock-persist-query-resume)
1164                        (y-or-n-p
1165                         (concat
1166                          "Resume clock ("
1167                          (with-current-buffer (find-file (car resume-clock))
1168                            (save-excursion
1169                              (goto-char (cdr resume-clock))
1170                              (org-back-to-heading t)
1171                              (and (looking-at org-complex-heading-regexp)
1172                                   (match-string 4))))
1173                          ") "))))
1174           (when (file-exists-p (car resume-clock))
1175             (with-current-buffer (find-file (car resume-clock))
1176               (goto-char (cdr resume-clock))
1177               (org-clock-in)
1178               (if (org-invisible-p)
1179                   (org-show-context)))))))))
1180
1181 ;;;###autoload
1182 (defun org-clock-persistence-insinuate ()
1183   "Set up hooks for clock persistence"
1184   (add-hook 'org-mode-hook 'org-clock-load)
1185   (add-hook 'kill-emacs-hook 'org-clock-save))
1186
1187 (provide 'org-clock)
1188
1189 ;; arch-tag: 7b42c5d4-9b36-48be-97c0-66a869daed4c
1190
1191 ;;; org-clock.el ends here