lisp/org-clock.el

   1 ;;; org-clock.el --- The time clocking code for Org-mode
   2
   3 ;; Copyright (C) 2004, 2005, 2006, 2007, 2008 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: 6.13
   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 "~/.emacs.d/org-clock-save.el"
 122   "File to save clock data to"
 123   :group 'org-clock
 124   :type 'string)
 125
 126 (defcustom org-clock-persist-query-save nil
 127   "When non-nil, ask before saving the current clock on exit"
 128   :group 'org-clock
 129   :type 'boolean)
 130
 131 (defcustom org-clock-persist-query-resume t
 132   "When non-nil, ask before resuming any stored clock during
 133 load."
 134   :group 'org-clock
 135   :type 'boolean)
 136
 137 ;;; The clock for measuring work time.
 138
 139 (defvar org-mode-line-string "")
 140 (put 'org-mode-line-string 'risky-local-variable t)
 141
 142 (defvar org-mode-line-timer nil)
 143 (defvar org-clock-heading "")
 144 (defvar org-clock-heading-for-remember "")
 145 (defvar org-clock-start-time "")
 146
 147 (defvar org-clock-history nil
 148   "List of marker pointing to recent clocked tasks.")
 149
 150 (defvar org-clock-default-task (make-marker)
 151   "Marker pointing to the default task that should clock time.
 152 The clock can be made to switch to this task after clocking out
 153 of a different task.")
 154
 155 (defvar org-clock-interrupted-task (make-marker)
 156   "Marker pointing to the task that has been interrupted by the current clock.")
 157
 158 (defvar org-clock-mode-map (make-sparse-keymap))
 159 (define-key org-clock-mode-map [mode-line mouse-2] 'org-clock-goto)
 160
 161 (defun org-clock-history-push (&optional pos buffer)
 162   "Push a marker to the clock history."
 163   (setq org-clock-history-length (max 1 (min 35 org-clock-history-length)))
 164   (let ((m (move-marker (make-marker) (or pos (point)) buffer)) n l)
 165     (while (setq n (member m org-clock-history))
 166       (move-marker (car n) nil))
 167     (setq org-clock-history
 168           (delq nil
 169                 (mapcar (lambda (x) (if (marker-buffer x) x nil))
 170                         org-clock-history)))
 171     (when (>= (setq l (length org-clock-history)) org-clock-history-length)
 172       (setq org-clock-history
 173             (nreverse
 174              (nthcdr (- l org-clock-history-length -1)
 175                      (nreverse org-clock-history)))))
 176     (push m org-clock-history)))
 177
 178 (defun org-clock-save-markers-for-cut-and-paste (beg end)
 179   "Save relative positions of markers in region."
 180   (org-check-and-save-marker org-clock-marker beg end)
 181   (org-check-and-save-marker org-clock-default-task beg end)
 182   (org-check-and-save-marker org-clock-interrupted-task beg end)
 183   (mapc (lambda (m) (org-check-and-save-marker m beg end))
 184         org-clock-history))
 185
 186 (defun org-clock-select-task (&optional prompt)
 187   "Select a task that recently was associated with clocking."
 188   (interactive)
 189   (let (sel-list rpl file task (i 0) s)
 190     (save-window-excursion
 191       (org-switch-to-buffer-other-window
 192        (get-buffer-create "*Clock Task Select*"))
 193       (erase-buffer)
 194       (when (marker-buffer org-clock-default-task)
 195         (insert (org-add-props "Default Task\n" nil 'face 'bold))
 196         (setq s (org-clock-insert-selection-line ?d org-clock-default-task))
 197         (push s sel-list))
 198       (when (marker-buffer org-clock-interrupted-task)
 199         (insert (org-add-props "The task interrupted by starting the last one\n" nil 'face 'bold))
 200         (setq s (org-clock-insert-selection-line ?i org-clock-interrupted-task))
 201         (push s sel-list))
 202       (when (marker-buffer org-clock-marker)
 203         (insert (org-add-props "Current Clocking Task\n" nil 'face 'bold))
 204         (setq s (org-clock-insert-selection-line ?c org-clock-marker))
 205         (push s sel-list))
 206       (insert (org-add-props "Recent Tasks\n" nil 'face 'bold))
 207       (mapc
 208        (lambda (m)
 209          (when (marker-buffer m)
 210            (setq i (1+ i)
 211                  s (org-clock-insert-selection-line
 212                     (if (< i 10)
 213                         (+ i ?0)
 214                       (+ i (- ?A 10))) m))
 215            (push s sel-list)))
 216        org-clock-history)
 217       (org-fit-window-to-buffer)
 218       (message (or prompt "Select task for clocking:"))
 219       (setq rpl (read-char-exclusive))
 220       (cond
 221        ((eq rpl ?q) nil)
 222        ((eq rpl ?x) nil)
 223        ((assoc rpl sel-list) (cdr (assoc rpl sel-list)))
 224        (t (error "Invalid task choice %c" rpl))))))
 225
 226 (defun org-clock-insert-selection-line (i marker)
 227   (when (marker-buffer marker)
 228     (let (file cat task)
 229       (with-current-buffer (org-base-buffer (marker-buffer marker))
 230         (save-excursion
 231           (save-restriction
 232             (widen)
 233             (goto-char marker)
 234             (setq file (buffer-file-name (marker-buffer marker))
 235                   cat (or (org-get-category)
 236                           (progn (org-refresh-category-properties)
 237                                  (org-get-category)))
 238                   task (org-get-heading 'notags)))))
 239       (when (and cat task)
 240         (insert (format "[%c] %-15s %s\n" i cat task))
 241         (cons i marker)))))
 242
 243 (defun org-update-mode-line ()
 244   (let* ((delta (- (time-to-seconds (current-time))
 245                    (time-to-seconds org-clock-start-time)))
 246          (h (floor delta 3600))
 247          (m (floor (- delta (* 3600 h)) 60)))
 248     (setq org-mode-line-string
 249           (org-propertize
 250            (let ((clock-string (format (concat "-[" org-time-clocksum-format " (%s)]")
 251                                        h m org-clock-heading))
 252                  (help-text "Org-mode clock is running. Mouse-2 to go there."))
 253              (if (and (> org-clock-string-limit 0)
 254                       (> (length clock-string) org-clock-string-limit))
 255                  (org-propertize (substring clock-string 0 org-clock-string-limit)
 256                              'help-echo (concat help-text ": " org-clock-heading))
 257                (org-propertize clock-string 'help-echo help-text)))
 258            'local-map org-clock-mode-map
 259            'mouse-face (if (featurep 'xemacs) 'highlight 'mode-line-highlight)))
 260     (force-mode-line-update)))
 261
 262 (defvar org-clock-mode-line-entry nil
 263   "Information for the modeline about the running clock.")
 264
 265 (defun org-clock-in (&optional select)
 266   "Start the clock on the current item.
 267 If necessary, clock-out of the currently active clock.
 268 With prefix arg SELECT, offer a list of recently clocked tasks to
 269 clock into.  When SELECT is `C-u C-u', clock into the current task and mark
 270 is as the default task, a special task that will always be offered in
 271 the clocking selection, associated with the letter `d'."
 272   (interactive "P")
 273   (catch 'abort
 274     (let ((interrupting (marker-buffer org-clock-marker))
 275           ts selected-task target-pos)
 276       (when (equal select '(4))
 277         (setq selected-task (org-clock-select-task "Clock-in on task: "))
 278         (if selected-task
 279             (setq selected-task (copy-marker selected-task))
 280           (error "Abort")))
 281       (when interrupting
 282         ;; We are interrupting the clocking of a differnt task.
 283         ;; Save a marker to this task, so that we can go back.
 284         (move-marker org-clock-interrupted-task
 285                      (marker-position org-clock-marker)
 286                      (marker-buffer org-clock-marker))
 287         (org-clock-out t))
 288
 289       (when (equal select '(16))
 290         ;; Mark as default clocking task
 291         (save-excursion
 292           (org-back-to-heading t)
 293           (move-marker org-clock-default-task (point))))
 294
 295       (setq target-pos (point))  ;; we want to clock in at this location
 296       (save-excursion
 297         (when (and selected-task (marker-buffer selected-task))
 298           ;; There is a selected task, move to the correct buffer
 299           ;; and set the new target position.
 300           (set-buffer (org-base-buffer (marker-buffer selected-task)))
 301           (setq target-pos (marker-position selected-task))
 302           (move-marker selected-task nil))
 303         (save-excursion
 304           (save-restriction
 305             (widen)
 306             (goto-char target-pos)
 307             (org-back-to-heading t)
 308             (or interrupting (move-marker org-clock-interrupted-task nil))
 309             (org-clock-history-push)
 310             (cond ((functionp org-clock-in-switch-to-state)
 311                    (looking-at org-complex-heading-regexp)
 312                    (let ((newstate (funcall org-clock-in-switch-to-state
 313                                             (match-string 2))))
 314                      (if newstate (org-todo newstate))))
 315                   ((and org-clock-in-switch-to-state
 316                         (not (looking-at (concat outline-regexp "[ \t]*"
 317                                                  org-clock-in-switch-to-state
 318                                                  "\\>"))))
 319                    (org-todo org-clock-in-switch-to-state)))
 320             (setq org-clock-heading-for-remember
 321                   (and (looking-at org-complex-heading-regexp)
 322                        (match-end 4)
 323                        (org-trim (buffer-substring (match-end 1)
 324                                                    (match-end 4)))))
 325             (setq org-clock-heading
 326                   (cond ((and org-clock-heading-function
 327                               (functionp org-clock-heading-function))
 328                          (funcall org-clock-heading-function))
 329                         ((looking-at org-complex-heading-regexp)
 330                          (match-string 4))
 331                         (t "???")))
 332             (setq org-clock-heading (org-propertize org-clock-heading
 333                                                     'face nil))
 334             (org-clock-find-position)
 335             (cond
 336              ((and org-clock-in-resume
 337                    (looking-at
 338                     (concat "^[ \\t]* " org-clock-string
 339                             " \\[\\([0-9]\\{4\\}-[0-9]\\{2\\}-[0-9]\\{2\\}"
 340                             " +\\sw+ +[012][0-9]:[0-5][0-9]\\)\\][ \t]*$")))
 341               (message "Matched %s" (match-string 1))
 342               (setq ts (concat "[" (match-string 1) "]"))
 343               (goto-char (match-end 1))
 344               (setq org-clock-start-time
 345                     (apply 'encode-time
 346                            (org-parse-time-string (match-string 1)))))
 347              ((eq org-clock-in-resume 'auto-restart)
 348               ;; called from org-clock-load during startup,
 349               ;; do not interrupt, but warn!
 350               (message "Cannot restart clock because task does not contain unfinished clock")
 351               (ding)
 352               (sit-for 2)
 353               (throw 'abort nil))
 354              (t
 355               (insert "\n") (backward-char 1)
 356               (org-indent-line-function)
 357               (insert org-clock-string " ")
 358               (setq org-clock-start-time (current-time))
 359               (setq ts (org-insert-time-stamp org-clock-start-time 'with-hm 'inactive))))
 360             (move-marker org-clock-marker (point) (buffer-base-buffer))
 361             (or global-mode-string (setq global-mode-string '("")))
 362             (or (memq 'org-mode-line-string global-mode-string)
 363                 (setq global-mode-string
 364                       (append global-mode-string '(org-mode-line-string))))
 365             (org-update-mode-line)
 366             (setq org-mode-line-timer
 367                   (run-with-timer 60 60 'org-update-mode-line))
 368             (message "Clock started at %s" ts)))))))
 369
 370 (defun org-clock-find-position ()
 371   "Find the location where the next clock line should be inserted."
 372   (org-back-to-heading t)
 373   (catch 'exit
 374     (let ((beg (save-excursion
 375                  (beginning-of-line 2)
 376                  (or (bolp) (newline))
 377                  (point)))
 378           (end (progn (outline-next-heading) (point)))
 379           (re (concat "^[ \t]*" org-clock-string))
 380           (cnt 0)
 381           first last)
 382       (goto-char beg)
 383       (when (eobp) (newline) (setq end (max (point) end)))
 384       (when (re-search-forward "^[ \t]*:CLOCK:" end t)
 385         ;; we seem to have a CLOCK drawer, so go there.
 386         (beginning-of-line 2)
 387         (throw 'exit t))
 388       ;; Lets count the CLOCK lines
 389       (goto-char beg)
 390       (while (re-search-forward re end t)
 391         (setq first (or first (match-beginning 0))
 392               last (match-beginning 0)
 393               cnt (1+ cnt)))
 394       (when (and (integerp org-clock-into-drawer)
 395                  (>= (1+ cnt) org-clock-into-drawer))
 396         ;; Wrap current entries into a new drawer
 397         (goto-char last)
 398         (beginning-of-line 2)
 399         (if (org-at-item-p) (org-end-of-item))
 400         (insert ":END:\n")
 401         (beginning-of-line 0)
 402         (org-indent-line-function)
 403         (goto-char first)
 404         (insert ":CLOCK:\n")
 405         (beginning-of-line 0)
 406         (org-indent-line-function)
 407         (org-flag-drawer t)
 408         (beginning-of-line 2)
 409         (throw 'exit nil))
 410
 411       (goto-char beg)
 412       (while (and (looking-at (concat "[ \t]*" org-keyword-time-regexp))
 413                   (not (equal (match-string 1) org-clock-string)))
 414         ;; Planning info, skip to after it
 415         (beginning-of-line 2)
 416         (or (bolp) (newline)))
 417       (when (eq t org-clock-into-drawer)
 418         (insert ":CLOCK:\n:END:\n")
 419         (beginning-of-line 0)
 420         (org-indent-line-function)
 421         (beginning-of-line 0)
 422         (org-flag-drawer t)
 423         (org-indent-line-function)
 424         (beginning-of-line 2)))))
 425
 426 (defun org-clock-out (&optional fail-quietly)
 427   "Stop the currently running clock.
 428 If there is no running clock, throw an error, unless FAIL-QUIETLY is set."
 429   (interactive)
 430   (catch 'exit
 431   (if (not (marker-buffer org-clock-marker))
 432       (if fail-quietly (throw 'exit t) (error "No active clock")))
 433   (let (ts te s h m remove)
 434     (save-excursion
 435       (set-buffer (marker-buffer org-clock-marker))
 436       (save-restriction
 437         (widen)
 438         (goto-char org-clock-marker)
 439         (beginning-of-line 1)
 440         (if (and (looking-at (concat "[ \t]*" org-keyword-time-regexp))
 441                  (equal (match-string 1) org-clock-string))
 442             (setq ts (match-string 2))
 443           (if fail-quietly (throw 'exit nil) (error "Clock start time is gone")))
 444         (goto-char (match-end 0))
 445         (delete-region (point) (point-at-eol))
 446         (insert "--")
 447         (setq te (org-insert-time-stamp (current-time) 'with-hm 'inactive))
 448         (setq s (- (time-to-seconds (apply 'encode-time (org-parse-time-string te)))
 449                    (time-to-seconds (apply 'encode-time (org-parse-time-string ts))))
 450               h (floor (/ s 3600))
 451               s (- s (* 3600 h))
 452               m (floor (/ s 60))
 453               s (- s (* 60 s)))
 454         (insert " => " (format "%2d:%02d" h m))
 455         (when (setq remove (and org-clock-out-remove-zero-time-clocks
 456                                 (= (+ h m) 0)))
 457           (beginning-of-line 1)
 458           (delete-region (point) (point-at-eol))
 459           (and (looking-at "\n") (> (point-max) (1+ (point)))
 460                (delete-char 1)))
 461         (move-marker org-clock-marker nil)
 462         (when org-log-note-clock-out
 463           (org-add-log-setup 'clock-out nil nil nil
 464                              (concat "# Task: " (org-get-heading t) "\n\n")))
 465         (when org-mode-line-timer
 466           (cancel-timer org-mode-line-timer)
 467           (setq org-mode-line-timer nil))
 468         (setq global-mode-string
 469               (delq 'org-mode-line-string global-mode-string))
 470         (force-mode-line-update)
 471         (message (concat "Clock stopped at %s after HH:MM = " org-time-clocksum-format "%s") te h m
 472                  (if remove " => LINE REMOVED" "")))))))
 473
 474 (defun org-clock-cancel ()
 475   "Cancel the running clock be removing the start timestamp."
 476   (interactive)
 477   (if (not (marker-buffer org-clock-marker))
 478       (error "No active clock"))
 479   (save-excursion
 480     (set-buffer (marker-buffer org-clock-marker))
 481     (goto-char org-clock-marker)
 482     (delete-region (1- (point-at-bol)) (point-at-eol)))
 483   (setq global-mode-string
 484         (delq 'org-mode-line-string global-mode-string))
 485   (force-mode-line-update)
 486   (message "Clock canceled"))
 487
 488 (defun org-clock-goto (&optional select)
 489   "Go to the currently clocked-in entry.
 490 With prefix arg SELECT, offer recently clocked tasks."
 491   (interactive "P")
 492   (let ((m (if select
 493                (org-clock-select-task "Select task to go to: ")
 494              org-clock-marker)))
 495     (if (not (marker-buffer m))
 496         (if select
 497             (error "No task selected")
 498           (error "No active clock")))
 499     (switch-to-buffer (marker-buffer m))
 500     (if (or (< m (point-min)) (> m (point-max))) (widen))
 501     (goto-char m)
 502     (org-show-entry)
 503     (org-back-to-heading)
 504     (org-cycle-hide-drawers 'children)
 505     (recenter)))
 506
 507 (defvar org-clock-file-total-minutes nil
 508   "Holds the file total time in minutes, after a call to `org-clock-sum'.")
 509   (make-variable-buffer-local 'org-clock-file-total-minutes)
 510
 511 (defun org-clock-sum (&optional tstart tend)
 512   "Sum the times for each subtree.
 513 Puts the resulting times in minutes as a text property on each headline."
 514   (interactive)
 515   (let* ((bmp (buffer-modified-p))
 516          (re (concat "^\\(\\*+\\)[ \t]\\|^[ \t]*"
 517                      org-clock-string
 518                      "[ \t]*\\(?:\\(\\[.*?\\]\\)-+\\(\\[.*?\\]\\)\\|=>[ \t]+\\([0-9]+\\):\\([0-9]+\\)\\)"))
 519          (lmax 30)
 520          (ltimes (make-vector lmax 0))
 521          (t1 0)
 522          (level 0)
 523          ts te dt
 524          time)
 525     (remove-text-properties (point-min) (point-max) '(:org-clock-minutes t))
 526     (save-excursion
 527       (goto-char (point-max))
 528       (while (re-search-backward re nil t)
 529         (cond
 530          ((match-end 2)
 531           ;; Two time stamps
 532           (setq ts (match-string 2)
 533                 te (match-string 3)
 534                 ts (time-to-seconds
 535                     (apply 'encode-time (org-parse-time-string ts)))
 536                 te (time-to-seconds
 537                     (apply 'encode-time (org-parse-time-string te)))
 538                 ts (if tstart (max ts tstart) ts)
 539                 te (if tend (min te tend) te)
 540                 dt (- te ts)
 541                 t1 (if (> dt 0) (+ t1 (floor (/ dt 60))) t1)))
 542          ((match-end 4)
 543           ;; A naket time
 544           (setq t1 (+ t1 (string-to-number (match-string 5))
 545                       (* 60 (string-to-number (match-string 4))))))
 546          (t ;; A headline
 547           (setq level (- (match-end 1) (match-beginning 1)))
 548           (when (or (> t1 0) (> (aref ltimes level) 0))
 549             (loop for l from 0 to level do
 550                   (aset ltimes l (+ (aref ltimes l) t1)))
 551             (setq t1 0 time (aref ltimes level))
 552             (loop for l from level to (1- lmax) do
 553                   (aset ltimes l 0))
 554             (goto-char (match-beginning 0))
 555             (put-text-property (point) (point-at-eol) :org-clock-minutes time)))))
 556       (setq org-clock-file-total-minutes (aref ltimes 0)))
 557     (set-buffer-modified-p bmp)))
 558
 559 (defun org-clock-display (&optional total-only)
 560   "Show subtree times in the entire buffer.
 561 If TOTAL-ONLY is non-nil, only show the total time for the entire file
 562 in the echo area."
 563   (interactive)
 564   (org-remove-clock-overlays)
 565   (let (time h m p)
 566     (org-clock-sum)
 567     (unless total-only
 568       (save-excursion
 569         (goto-char (point-min))
 570         (while (or (and (equal (setq p (point)) (point-min))
 571                         (get-text-property p :org-clock-minutes))
 572                    (setq p (next-single-property-change
 573                             (point) :org-clock-minutes)))
 574           (goto-char p)
 575           (when (setq time (get-text-property p :org-clock-minutes))
 576             (org-put-clock-overlay time (funcall outline-level))))
 577         (setq h (/ org-clock-file-total-minutes 60)
 578               m (- org-clock-file-total-minutes (* 60 h)))
 579         ;; Arrange to remove the overlays upon next change.
 580         (when org-remove-highlights-with-change
 581           (org-add-hook 'before-change-functions 'org-remove-clock-overlays
 582                         nil 'local))))
 583     (message (concat "Total file time: " org-time-clocksum-format " (%d hours and %d minutes)") h m h m)))
 584
 585 (defvar org-clock-overlays nil)
 586 (make-variable-buffer-local 'org-clock-overlays)
 587
 588 (defun org-put-clock-overlay (time &optional level)
 589   "Put an overlays on the current line, displaying TIME.
 590 If LEVEL is given, prefix time with a corresponding number of stars.
 591 This creates a new overlay and stores it in `org-clock-overlays', so that it
 592 will be easy to remove."
 593   (let* ((c 60) (h (floor (/ time 60))) (m (- time (* 60 h)))
 594          (l (if level (org-get-valid-level level 0) 0))
 595          (fmt (concat "%s " org-time-clocksum-format "%s"))
 596          (off 0)
 597          ov tx)
 598     (org-move-to-column c)
 599     (unless (eolp) (skip-chars-backward "^ \t"))
 600     (skip-chars-backward " \t")
 601     (setq ov (org-make-overlay (1- (point)) (point-at-eol))
 602           tx (concat (buffer-substring (1- (point)) (point))
 603                      (make-string (+ off (max 0 (- c (current-column)))) ?.)
 604                      (org-add-props (format fmt
 605                                             (make-string l ?*) h m
 606                                             (make-string (- 16 l) ?\ ))
 607                          '(face secondary-selection))
 608                      ""))
 609     (if (not (featurep 'xemacs))
 610         (org-overlay-put ov 'display tx)
 611       (org-overlay-put ov 'invisible t)
 612       (org-overlay-put ov 'end-glyph (make-glyph tx)))
 613     (push ov org-clock-overlays)))
 614
 615 (defun org-remove-clock-overlays (&optional beg end noremove)
 616   "Remove the occur highlights from the buffer.
 617 BEG and END are ignored.  If NOREMOVE is nil, remove this function
 618 from the `before-change-functions' in the current buffer."
 619   (interactive)
 620   (unless org-inhibit-highlight-removal
 621     (mapc 'org-delete-overlay org-clock-overlays)
 622     (setq org-clock-overlays nil)
 623     (unless noremove
 624       (remove-hook 'before-change-functions
 625                    'org-remove-clock-overlays 'local))))
 626
 627 (defvar state) ;; dynamically scoped into this function
 628 (defun org-clock-out-if-current ()
 629   "Clock out if the current entry contains the running clock.
 630 This is used to stop the clock after a TODO entry is marked DONE,
 631 and is only done if the variable `org-clock-out-when-done' is not nil."
 632   (when (and org-clock-out-when-done
 633              (member state org-done-keywords)
 634              (equal (marker-buffer org-clock-marker) (current-buffer))
 635              (< (point) org-clock-marker)
 636              (> (save-excursion (outline-next-heading) (point))
 637                 org-clock-marker))
 638     ;; Clock out, but don't accept a logging message for this.
 639     (let ((org-log-note-clock-out nil))
 640       (org-clock-out))))
 641
 642 (add-hook 'org-after-todo-state-change-hook
 643           'org-clock-out-if-current)
 644
 645 ;;;###autoload
 646 (defun org-get-clocktable (&rest props)
 647   "Get a formatted clocktable with parameters according to PROPS.
 648 The table is created in a temporary buffer, fully formatted and
 649 fontified, and then returned."
 650   ;; Set the defaults
 651   (setq props (plist-put props :name "clocktable"))
 652   (unless (plist-member props :maxlevel)
 653     (setq props (plist-put props :maxlevel 2)))
 654   (unless (plist-member props :scope)
 655     (setq props (plist-put props :scope 'agenda)))
 656   (with-temp-buffer
 657     (org-mode)
 658     (org-create-dblock props)
 659     (org-update-dblock)
 660     (font-lock-fontify-buffer)
 661     (forward-line 2)
 662     (buffer-substring (point) (progn
 663                                 (re-search-forward "^#\\+END" nil t)
 664                                 (point-at-bol)))))
 665
 666 (defun org-clock-report (&optional arg)
 667   "Create a table containing a report about clocked time.
 668 If the cursor is inside an existing clocktable block, then the table
 669 will be updated.  If not, a new clocktable will be inserted.
 670 When called with a prefix argument, move to the first clock table in the
 671 buffer and update it."
 672   (interactive "P")
 673   (org-remove-clock-overlays)
 674   (when arg
 675     (org-find-dblock "clocktable")
 676     (org-show-entry))
 677   (if (org-in-clocktable-p)
 678       (goto-char (org-in-clocktable-p))
 679     (org-create-dblock (list :name "clocktable"
 680                              :maxlevel 2 :scope 'file)))
 681   (org-update-dblock))
 682
 683 (defun org-in-clocktable-p ()
 684   "Check if the cursor is in a clocktable."
 685   (let ((pos (point)) start)
 686     (save-excursion
 687       (end-of-line 1)
 688       (and (re-search-backward "^#\\+BEGIN:[ \t]+clocktable" nil t)
 689            (setq start (match-beginning 0))
 690            (re-search-forward "^#\\+END:.*" nil t)
 691            (>= (match-end 0) pos)
 692            start))))
 693
 694 (defun org-clock-special-range (key &optional time as-strings)
 695   "Return two times bordering a special time range.
 696 Key is a symbol specifying the range and can be one of `today', `yesterday',
 697 `thisweek', `lastweek', `thismonth', `lastmonth', `thisyear', `lastyear'.
 698 A week starts Monday 0:00 and ends Sunday 24:00.
 699 The range is determined relative to TIME.  TIME defaults to the current time.
 700 The return value is a cons cell with two internal times like the ones
 701 returned by `current time' or `encode-time'. if AS-STRINGS is non-nil,
 702 the returned times will be formatted strings."
 703   (if (integerp key) (setq key (intern (number-to-string key))))
 704   (let* ((tm (decode-time (or time (current-time))))
 705          (s 0) (m (nth 1 tm)) (h (nth 2 tm))
 706          (d (nth 3 tm)) (month (nth 4 tm)) (y (nth 5 tm))
 707          (dow (nth 6 tm))
 708          (skey (symbol-name key))
 709          (shift 0)
 710          s1 m1 h1 d1 month1 y1 diff ts te fm txt w date)
 711     (cond
 712      ((string-match "^[0-9]+$" skey)
 713       (setq y (string-to-number skey) m 1 d 1 key 'year))
 714      ((string-match "^\\([0-9]+\\)-\\([0-9]\\{1,2\\}\\)$" skey)
 715       (setq y (string-to-number (match-string 1 skey))
 716             month (string-to-number (match-string 2 skey))
 717             d 1 key 'month))
 718      ((string-match "^\\([0-9]+\\)-[wW]\\([0-9]\\{1,2\\}\\)$" skey)
 719       (require 'cal-iso)
 720       (setq y (string-to-number (match-string 1 skey))
 721             w (string-to-number (match-string 2 skey)))
 722       (setq date (calendar-gregorian-from-absolute
 723                   (calendar-absolute-from-iso (list w 1 y))))
 724       (setq d (nth 1 date) month (car date) y (nth 2 date)
 725             key 'week))
 726      ((string-match "^\\([0-9]+\\)-\\([0-9]\\{1,2\\}\\)-\\([0-9]\\{1,2\\}\\)$" skey)
 727       (setq y (string-to-number (match-string 1 skey))
 728             month (string-to-number (match-string 2 skey))
 729             d (string-to-number (match-string 3 skey))
 730             key 'day))
 731      ((string-match "\\([-+][0-9]+\\)$" skey)
 732       (setq shift (string-to-number (match-string 1 skey))
 733             key (intern (substring skey 0 (match-beginning 1))))))
 734     (when (= shift 0)
 735       (cond ((eq key 'yesterday) (setq key 'today shift -1))
 736             ((eq key 'lastweek)  (setq key 'week  shift -1))
 737             ((eq key 'lastmonth) (setq key 'month shift -1))
 738             ((eq key 'lastyear)  (setq key 'year  shift -1))))
 739     (cond
 740      ((memq key '(day today))
 741       (setq d (+ d shift) h 0 m 0 h1 24 m1 0))
 742      ((memq key '(week thisweek))
 743       (setq diff (+ (* -7 shift) (if (= dow 0) 6 (1- dow)))
 744             m 0 h 0 d (- d diff) d1 (+ 7 d)))
 745      ((memq key '(month thismonth))
 746       (setq d 1 h 0 m 0 d1 1 month (+ month shift) month1 (1+ month) h1 0 m1 0))
 747      ((memq key '(year thisyear))
 748       (setq m 0 h 0 d 1 month 1 y (+ y shift) y1 (1+ y)))
 749      (t (error "No such time block %s" key)))
 750     (setq ts (encode-time s m h d month y)
 751           te (encode-time (or s1 s) (or m1 m) (or h1 h)
 752                           (or d1 d) (or month1 month) (or y1 y)))
 753     (setq fm (cdr org-time-stamp-formats))
 754     (cond
 755      ((memq key '(day today))
 756       (setq txt (format-time-string "%A, %B %d, %Y" ts)))
 757      ((memq key '(week thisweek))
 758       (setq txt (format-time-string "week %G-W%V" ts)))
 759      ((memq key '(month thismonth))
 760       (setq txt (format-time-string "%B %Y" ts)))
 761      ((memq key '(year thisyear))
 762       (setq txt (format-time-string "the year %Y" ts))))
 763     (if as-strings
 764         (list (format-time-string fm ts) (format-time-string fm te) txt)
 765       (list ts te txt))))
 766
 767 (defun org-clocktable-shift (dir n)
 768   "Try to shift the :block date of the clocktable at point.
 769 Point must be in the #+BEGIN: line of a clocktable, or this function
 770 will throw an error.
 771 DIR is a direction, a symbol `left', `right', `up', or `down'.
 772 Both `left' and `down' shift the block toward the past, `up' and `right'
 773 push it toward the future.
 774 N is the number of shift steps to take.  The size of the step depends on
 775 the currently selected interval size."
 776   (setq n (prefix-numeric-value n))
 777   (and (memq dir '(left down)) (setq n (- n)))
 778   (save-excursion
 779     (goto-char (point-at-bol))
 780     (if (not (looking-at "#\\+BEGIN: clocktable\\>.*?:block[ \t]+\\(\\S-+\\)"))
 781         (error "Line needs a :block definition before this command works")
 782       (let* ((b (match-beginning 1)) (e (match-end 1))
 783              (s (match-string 1))
 784              block shift ins y mw d date wp m)
 785         (cond
 786          ((equal s "yesterday") (setq s "today-1"))
 787          ((equal s "lastweek") (setq s "thisweek-1"))
 788          ((equal s "lastmonth") (setq s "thismonth-1"))
 789          ((equal s "lastyear") (setq s "thisyear-1")))
 790         (cond
 791          ((string-match "^\\(today\\|thisweek\\|thismonth\\|thisyear\\)\\([-+][0-9]+\\)?$" s)
 792           (setq block (match-string 1 s)
 793                 shift (if (match-end 2)
 794                           (string-to-number (match-string 2 s))
 795                         0))
 796           (setq shift (+ shift n))
 797           (setq ins (if (= shift 0) block (format "%s%+d" block shift))))
 798          ((string-match "\\([0-9]+\\)\\(-\\([wW]?\\)\\([0-9]\\{1,2\\}\\)\\(-\\([0-9]\\{1,2\\}\\)\\)?\\)?" s)
 799           ;;               1        1  2   3       3  4                4  5   6                6  5   2
 800           (setq y (string-to-number (match-string 1 s))
 801                 wp (and (match-end 3) (match-string 3 s))
 802                 mw (and (match-end 4) (string-to-number (match-string 4 s)))
 803                 d (and (match-end 6) (string-to-number (match-string 6 s))))
 804           (cond
 805            (d (setq ins (format-time-string
 806                          "%Y-%m-%d"
 807                          (encode-time 0 0 0 (+ d n) m y))))
 808            ((and wp mw (> (length wp) 0))
 809             (require 'cal-iso)
 810             (setq date (calendar-gregorian-from-absolute (calendar-absolute-from-iso (list (+ mw n) 1 y))))
 811             (setq ins (format-time-string
 812                        "%G-W%V"
 813                        (encode-time 0 0 0 (nth 1 date) (car date) (nth 2 date)))))
 814            (mw
 815             (setq ins (format-time-string
 816                        "%Y-%m"
 817                        (encode-time 0 0 0 1 (+ mw n) y))))
 818            (y
 819             (setq ins (number-to-string (+ y n))))))
 820          (t (error "Cannot shift clocktable block")))
 821         (when ins
 822           (goto-char b)
 823           (insert ins)
 824           (delete-region (point) (+ (point) (- e b)))
 825           (beginning-of-line 1)
 826           (org-update-dblock)
 827           t)))))
 828
 829 (defun org-dblock-write:clocktable (params)
 830   "Write the standard clocktable."
 831   (catch 'exit
 832     (let* ((hlchars '((1 . "*") (2 . "/")))
 833            (ins (make-marker))
 834            (total-time nil)
 835            (scope (plist-get params :scope))
 836            (tostring (plist-get  params :tostring))
 837            (multifile (plist-get  params :multifile))
 838            (header (plist-get  params :header))
 839            (maxlevel (or (plist-get params :maxlevel) 3))
 840            (step (plist-get params :step))
 841            (emph (plist-get params :emphasize))
 842            (ts (plist-get params :tstart))
 843            (te (plist-get params :tend))
 844            (block (plist-get params :block))
 845            (link (plist-get params :link))
 846            ipos time p level hlc hdl content recalc formula pcol
 847            cc beg end pos tbl tbl1 range-text rm-file-column scope-is-list st)
 848       (setq org-clock-file-total-minutes nil)
 849       (when step
 850         (unless (or block (and ts te))
 851           (error "Clocktable `:step' can only be used with `:block' or `:tstart,:end'"))
 852         (org-clocktable-steps params)
 853         (throw 'exit nil))
 854       (when block
 855         (setq cc (org-clock-special-range block nil t)
 856               ts (car cc) te (nth 1 cc) range-text (nth 2 cc)))
 857       (when (integerp ts) (setq ts (calendar-gregorian-from-absolute ts)))
 858       (when (integerp te) (setq te (calendar-gregorian-from-absolute te)))
 859       (when (and ts (listp ts))
 860         (setq ts (format "%4d-%02d-%02d" (nth 2 ts) (car ts) (nth 1 ts))))
 861       (when (and te (listp te))
 862         (setq te (format "%4d-%02d-%02d" (nth 2 te) (car te) (nth 1 te))))
 863       ;; Now the times are strings we can parse.
 864       (if ts (setq ts (time-to-seconds
 865                        (apply 'encode-time (org-parse-time-string ts)))))
 866       (if te (setq te (time-to-seconds
 867                        (apply 'encode-time (org-parse-time-string te)))))
 868       (move-marker ins (point))
 869       (setq ipos (point))
 870
 871       ;; Get the right scope
 872       (setq pos (point))
 873       (cond
 874        ((and scope (listp scope) (symbolp (car scope)))
 875         (setq scope (eval scope)))
 876        ((eq scope 'agenda)
 877         (setq scope (org-agenda-files t)))
 878        ((eq scope 'agenda-with-archives)
 879         (setq scope (org-agenda-files t))
 880         (setq scope (org-add-archive-files scope)))
 881        ((eq scope 'file-with-archives)
 882         (setq scope (org-add-archive-files (list (buffer-file-name)))
 883               rm-file-column t)))
 884       (setq scope-is-list (and scope (listp scope)))
 885       (save-restriction
 886         (cond
 887          ((not scope))
 888          ((eq scope 'file) (widen))
 889          ((eq scope 'subtree) (org-narrow-to-subtree))
 890          ((eq scope 'tree)
 891           (while (org-up-heading-safe))
 892           (org-narrow-to-subtree))
 893          ((and (symbolp scope) (string-match "^tree\\([0-9]+\\)$"
 894                                              (symbol-name scope)))
 895           (setq level (string-to-number (match-string 1 (symbol-name scope))))
 896           (catch 'exit
 897             (while (org-up-heading-safe)
 898               (looking-at outline-regexp)
 899               (if (<= (org-reduced-level (funcall outline-level)) level)
 900                   (throw 'exit nil))))
 901           (org-narrow-to-subtree))
 902          (scope-is-list
 903           (let* ((files scope)
 904                  (scope 'agenda)
 905                  (p1 (copy-sequence params))
 906                  file)
 907             (setq p1 (plist-put p1 :tostring t))
 908             (setq p1 (plist-put p1 :multifile t))
 909             (setq p1 (plist-put p1 :scope 'file))
 910             (org-prepare-agenda-buffers files)
 911             (while (setq file (pop files))
 912               (with-current-buffer (find-buffer-visiting file)
 913                 (setq tbl1 (org-dblock-write:clocktable p1))
 914                 (when tbl1
 915                   (push (org-clocktable-add-file
 916                          file
 917                          (concat "| |*File time*|*"
 918                                  (org-minutes-to-hh:mm-string
 919                                   org-clock-file-total-minutes)
 920                                  "*|\n"
 921                                  tbl1)) tbl)
 922                   (setq total-time (+ (or total-time 0)
 923                                       org-clock-file-total-minutes))))))))
 924         (goto-char pos)
 925
 926         (unless scope-is-list
 927           (org-clock-sum ts te)
 928           (goto-char (point-min))
 929           (setq st t)
 930           (while (or (and (bobp) (prog1 st (setq st nil))
 931                           (get-text-property (point) :org-clock-minutes)
 932                           (setq p (point-min)))
 933                      (setq p (next-single-property-change (point) :org-clock-minutes)))
 934             (goto-char p)
 935             (when (setq time (get-text-property p :org-clock-minutes))
 936               (save-excursion
 937                 (beginning-of-line 1)
 938                 (when (and (looking-at (org-re "\\(\\*+\\)[ \t]+\\(.*?\\)\\([ \t]+:[[:alnum:]_@:]+:\\)?[ \t]*$"))
 939                            (setq level (org-reduced-level
 940                                         (- (match-end 1) (match-beginning 1))))
 941                            (<= level maxlevel))
 942                   (setq hlc (if emph (or (cdr (assoc level hlchars)) "") "")
 943                         hdl (if (not link)
 944                                 (match-string 2)
 945                               (org-make-link-string
 946                                (format "file:%s::%s"
 947                                        (buffer-file-name)
 948                                        (save-match-data
 949                                          (org-make-org-heading-search-string
 950                                           (match-string 2))))
 951                                (match-string 2))))
 952                   (if (and (not multifile) (= level 1)) (push "|-" tbl))
 953                   (push (concat
 954                          "| " (int-to-string level) "|" hlc hdl hlc " |"
 955                          (make-string (1- level) ?|)
 956                          hlc (org-minutes-to-hh:mm-string time) hlc
 957                          " |") tbl))))))
 958         (setq tbl (nreverse tbl))
 959         (if tostring
 960             (if tbl (mapconcat 'identity tbl "\n") nil)
 961           (goto-char ins)
 962           (insert-before-markers
 963            (or header
 964                (concat
 965                 "Clock summary at ["
 966                 (substring
 967                  (format-time-string (cdr org-time-stamp-formats))
 968                  1 -1)
 969                 "]"
 970                 (if block (concat ", for " range-text ".") "")
 971                 "\n\n"))
 972            (if scope-is-list "|File" "")
 973            "|L|Headline|Time|\n")
 974           (setq total-time (or total-time org-clock-file-total-minutes))
 975           (insert-before-markers
 976            "|-\n|"
 977            (if scope-is-list "|" "")
 978            "|"
 979            "*Total time*| *"
 980            (org-minutes-to-hh:mm-string (or total-time 0))
 981            "*|\n|-\n")
 982           (setq tbl (delq nil tbl))
 983           (if (and (stringp (car tbl)) (> (length (car tbl)) 1)
 984                    (equal (substring (car tbl) 0 2) "|-"))
 985               (pop tbl))
 986           (insert-before-markers (mapconcat
 987                                   'identity (delq nil tbl)
 988                                   (if scope-is-list "\n|-\n" "\n")))
 989           (backward-delete-char 1)
 990           (if (setq formula (plist-get params :formula))
 991               (cond
 992                ((eq formula '%)
 993                 (setq pcol (+ (if scope-is-list 1 0) maxlevel 3))
 994                 (insert
 995                  (format
 996                   "\n#+TBLFM: $%d='(org-clock-time%% @%d$%d $%d..$%d);%%.1f"
 997                   pcol
 998                   2
 999                   (+ 3 (if scope-is-list 1 0))
1000                   (+ (if scope-is-list 1 0) 3)
1001                   (1- pcol)))
1002                 (setq recalc t))
1003                ((stringp formula)
1004                 (insert "\n#+TBLFM: " formula)
1005                 (setq recalc t))
1006                (t (error "invalid formula in clocktable")))
1007             ;; Should we rescue an old formula?
1008             (when (stringp (setq content (plist-get params :content)))
1009               (when (string-match "^\\(#\\+TBLFM:.*\\)" content)
1010                 (setq recalc t)
1011                 (insert "\n" (match-string 1 (plist-get params :content)))
1012                 (beginning-of-line 0))))
1013           (goto-char ipos)
1014           (skip-chars-forward "^|")
1015           (org-table-align)
1016           (when recalc
1017             (if (eq formula '%)
1018                 (save-excursion (org-table-goto-column pcol nil 'force)
1019                                 (insert "%")))
1020             (org-table-recalculate 'all))
1021           (when rm-file-column
1022             (forward-char 1)
1023             (org-table-delete-column)))))))
1024
1025 (defun org-clocktable-steps (params)
1026   (let* ((p1 (copy-sequence params))
1027          (ts (plist-get p1 :tstart))
1028          (te (plist-get p1 :tend))
1029          (step0 (plist-get p1 :step))
1030          (step (cdr (assoc step0 '((day . 86400) (week . 604800)))))
1031          (block (plist-get p1 :block))
1032          cc range-text)
1033     (when block
1034       (setq cc (org-clock-special-range block nil t)
1035             ts (car cc) te (nth 1 cc) range-text (nth 2 cc)))
1036     (if ts (setq ts (time-to-seconds
1037                      (apply 'encode-time (org-parse-time-string ts)))))
1038     (if te (setq te (time-to-seconds
1039                      (apply 'encode-time (org-parse-time-string te)))))
1040     (setq p1 (plist-put p1 :header ""))
1041     (setq p1 (plist-put p1 :step nil))
1042     (setq p1 (plist-put p1 :block nil))
1043     (while (< ts te)
1044       (or (bolp) (insert "\n"))
1045       (setq p1 (plist-put p1 :tstart (format-time-string
1046                                       (car org-time-stamp-formats)
1047                                       (seconds-to-time ts))))
1048       (setq p1 (plist-put p1 :tend (format-time-string
1049                                     (car org-time-stamp-formats)
1050                                     (seconds-to-time (setq ts (+ ts step))))))
1051       (insert "\n" (if (eq step0 'day) "Daily report: " "Weekly report starting on: ")
1052               (plist-get p1 :tstart) "\n")
1053       (org-dblock-write:clocktable p1)
1054       (re-search-forward "#\\+END:")
1055       (end-of-line 0))))
1056
1057 (defun org-clocktable-add-file (file table)
1058   (if table
1059       (let ((lines (org-split-string table "\n"))
1060             (ff (file-name-nondirectory file)))
1061         (mapconcat 'identity
1062                    (mapcar (lambda (x)
1063                              (if (string-match org-table-dataline-regexp x)
1064                                  (concat "|" ff x)
1065                                x))
1066                            lines)
1067                    "\n"))))
1068
1069 (defun org-clock-time% (total &rest strings)
1070   "Compute a time fraction in percent.
1071 TOTAL s a time string like 10:21 specifying the total times.
1072 STRINGS is a list of strings that should be checked for a time.
1073 The first string that does have a time will be used.
1074 This function is made for clock tables."
1075   (let ((re "\\([0-9]+\\):\\([0-9]+\\)")
1076         tot s)
1077     (save-match-data
1078       (catch 'exit
1079         (if (not (string-match re total))
1080             (throw 'exit 0.)
1081           (setq tot (+ (string-to-number (match-string 2 total))
1082                        (* 60 (string-to-number (match-string 1 total)))))
1083           (if (= tot 0.) (throw 'exit 0.)))
1084         (while (setq s (pop strings))
1085           (if (string-match "\\([0-9]+\\):\\([0-9]+\\)" s)
1086               (throw 'exit
1087                      (/ (* 100.0 (+ (string-to-number (match-string 2 s))
1088                                     (* 60 (string-to-number (match-string 1 s)))))
1089                         tot))))
1090         0))))
1091
1092 (defun org-clock-save ()
1093   "Persist various clock-related data to disk.
1094 The details of what will be saved are regulated by the variable
1095 `org-clock-persist'."
1096   (when org-clock-persist
1097     (let (b)
1098       (with-current-buffer (find-file (expand-file-name org-clock-persist-file))
1099         (progn
1100           (delete-region (point-min) (point-max))
1101           ;;Store clock
1102           (insert (format ";; org-persist.el - %s at %s\n"
1103                           system-name (format-time-string
1104                                        (cdr org-time-stamp-formats))))
1105           (if (and (setq b (marker-buffer org-clock-marker))
1106                    (setq b (or (buffer-base-buffer b) b))
1107                    (buffer-live-p b)
1108                    (buffer-file-name b)
1109                    (or (not org-clock-persist-query-save)
1110                        (y-or-n-p (concat "Save current clock ("
1111                                          (substring-no-properties org-clock-heading)
1112                                          ") "))))
1113               (insert "(setq resume-clock '(\""
1114                       (buffer-file-name (marker-buffer org-clock-marker))
1115                       "\" . " (int-to-string (marker-position org-clock-marker))
1116                       "))\n"))
1117           ;; Store clocked task history. Tasks are stored reversed to make
1118           ;; reading simpler
1119           (when (and org-clock-history (eq org-clock-persist t))
1120             (insert
1121              "(setq stored-clock-history '("
1122              (mapconcat
1123               (lambda (m)
1124                 (when (and (setq b (marker-buffer m))
1125                            (setq b (or (buffer-base-buffer b) b))
1126                            (buffer-live-p b)
1127                            (buffer-file-name b))
1128                   (concat "(\"" (buffer-file-name b)
1129                           "\" . " (int-to-string (marker-position m))
1130                           ")")))
1131               (reverse org-clock-history) " ") "))\n"))
1132           (save-buffer)
1133           (kill-buffer (current-buffer)))))))
1134
1135 (defvar org-clock-loaded nil
1136   "Was the clock file loaded?")
1137
1138 (defun org-clock-load ()
1139   "Load various clock-related data from disk, optionally resuming
1140 a stored clock"
1141   (when (and org-clock-persist (not org-clock-loaded))
1142     (let ((filename (expand-file-name org-clock-persist-file))
1143           (org-clock-in-resume 'auto-restart)
1144           resume-clock stored-clock-history)
1145       (if (not (file-readable-p filename))
1146           (message "Not restoring clock data; %s not found"
1147                    org-clock-persist-file)
1148         (message "%s" "Restoring clock data")
1149         (setq org-clock-loaded t)
1150         (load-file filename)
1151         ;; load history
1152         (when stored-clock-history
1153           (save-window-excursion
1154             (mapc (lambda (task)
1155                     (if (file-exists-p (car task))
1156                         (org-clock-history-push (cdr task)
1157                                                 (find-file (car task)))))
1158                   stored-clock-history)))
1159         ;; resume clock
1160         (when (and resume-clock org-clock-persist
1161                    (file-exists-p (car resume-clock))
1162                    (or (not org-clock-persist-query-resume)
1163                        (y-or-n-p
1164                         (concat
1165                          "Resume clock ("
1166                          (with-current-buffer (find-file (car resume-clock))
1167                            (save-excursion
1168                              (goto-char (cdr resume-clock))
1169                              (org-back-to-heading t)
1170                              (and (looking-at org-complex-heading-regexp)
1171                                   (match-string 4))))
1172                          ") "))))
1173           (when (file-exists-p (car resume-clock))
1174             (with-current-buffer (find-file (car resume-clock))
1175               (goto-char (cdr resume-clock))
1176               (org-clock-in)
1177               (if (org-invisible-p)
1178                   (org-show-context)))))))))
1179
1180 ;;;###autoload
1181 (defun org-clock-persistence-insinuate ()
1182   "Set up hooks for clock persistence"
1183   (add-hook 'org-mode-hook 'org-clock-load)
1184   (add-hook 'kill-emacs-hook 'org-clock-save))
1185
1186 (provide 'org-clock)
1187
1188 ;; arch-tag: 7b42c5d4-9b36-48be-97c0-66a869daed4c
1189
1190 ;;; org-clock.el ends here