emacs-orgmode@gnu.org archives
 help / color / mirror / code / Atom feed
blob c7b5d4521f47836dc4f77de6584dcafa581ff63d 59954 bytes (raw)
name: lisp/org-colview.el 	 # note: path name is non-authoritative(*)

   1
   2
   3
   4
   5
   6
   7
   8
   9
  10
  11
  12
  13
  14
  15
  16
  17
  18
  19
  20
  21
  22
  23
  24
  25
  26
  27
  28
  29
  30
  31
  32
  33
  34
  35
  36
  37
  38
  39
  40
  41
  42
  43
  44
  45
  46
  47
  48
  49
  50
  51
  52
  53
  54
  55
  56
  57
  58
  59
  60
  61
  62
  63
  64
  65
  66
  67
  68
  69
  70
  71
  72
  73
  74
  75
  76
  77
  78
  79
  80
  81
  82
  83
  84
  85
  86
  87
  88
  89
  90
  91
  92
  93
  94
  95
  96
  97
  98
  99
 100
 101
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142
 143
 144
 145
 146
 147
 148
 149
 150
 151
 152
 153
 154
 155
 156
 157
 158
 159
 160
 161
 162
 163
 164
 165
 166
 167
 168
 169
 170
 171
 172
 173
 174
 175
 176
 177
 178
 179
 180
 181
 182
 183
 184
 185
 186
 187
 188
 189
 190
 191
 192
 193
 194
 195
 196
 197
 198
 199
 200
 201
 202
 203
 204
 205
 206
 207
 208
 209
 210
 211
 212
 213
 214
 215
 216
 217
 218
 219
 220
 221
 222
 223
 224
 225
 226
 227
 228
 229
 230
 231
 232
 233
 234
 235
 236
 237
 238
 239
 240
 241
 242
 243
 244
 245
 246
 247
 248
 249
 250
 251
 252
 253
 254
 255
 256
 257
 258
 259
 260
 261
 262
 263
 264
 265
 266
 267
 268
 269
 270
 271
 272
 273
 274
 275
 276
 277
 278
 279
 280
 281
 282
 283
 284
 285
 286
 287
 288
 289
 290
 291
 292
 293
 294
 295
 296
 297
 298
 299
 300
 301
 302
 303
 304
 305
 306
 307
 308
 309
 310
 311
 312
 313
 314
 315
 316
 317
 318
 319
 320
 321
 322
 323
 324
 325
 326
 327
 328
 329
 330
 331
 332
 333
 334
 335
 336
 337
 338
 339
 340
 341
 342
 343
 344
 345
 346
 347
 348
 349
 350
 351
 352
 353
 354
 355
 356
 357
 358
 359
 360
 361
 362
 363
 364
 365
 366
 367
 368
 369
 370
 371
 372
 373
 374
 375
 376
 377
 378
 379
 380
 381
 382
 383
 384
 385
 386
 387
 388
 389
 390
 391
 392
 393
 394
 395
 396
 397
 398
 399
 400
 401
 402
 403
 404
 405
 406
 407
 408
 409
 410
 411
 412
 413
 414
 415
 416
 417
 418
 419
 420
 421
 422
 423
 424
 425
 426
 427
 428
 429
 430
 431
 432
 433
 434
 435
 436
 437
 438
 439
 440
 441
 442
 443
 444
 445
 446
 447
 448
 449
 450
 451
 452
 453
 454
 455
 456
 457
 458
 459
 460
 461
 462
 463
 464
 465
 466
 467
 468
 469
 470
 471
 472
 473
 474
 475
 476
 477
 478
 479
 480
 481
 482
 483
 484
 485
 486
 487
 488
 489
 490
 491
 492
 493
 494
 495
 496
 497
 498
 499
 500
 501
 502
 503
 504
 505
 506
 507
 508
 509
 510
 511
 512
 513
 514
 515
 516
 517
 518
 519
 520
 521
 522
 523
 524
 525
 526
 527
 528
 529
 530
 531
 532
 533
 534
 535
 536
 537
 538
 539
 540
 541
 542
 543
 544
 545
 546
 547
 548
 549
 550
 551
 552
 553
 554
 555
 556
 557
 558
 559
 560
 561
 562
 563
 564
 565
 566
 567
 568
 569
 570
 571
 572
 573
 574
 575
 576
 577
 578
 579
 580
 581
 582
 583
 584
 585
 586
 587
 588
 589
 590
 591
 592
 593
 594
 595
 596
 597
 598
 599
 600
 601
 602
 603
 604
 605
 606
 607
 608
 609
 610
 611
 612
 613
 614
 615
 616
 617
 618
 619
 620
 621
 622
 623
 624
 625
 626
 627
 628
 629
 630
 631
 632
 633
 634
 635
 636
 637
 638
 639
 640
 641
 642
 643
 644
 645
 646
 647
 648
 649
 650
 651
 652
 653
 654
 655
 656
 657
 658
 659
 660
 661
 662
 663
 664
 665
 666
 667
 668
 669
 670
 671
 672
 673
 674
 675
 676
 677
 678
 679
 680
 681
 682
 683
 684
 685
 686
 687
 688
 689
 690
 691
 692
 693
 694
 695
 696
 697
 698
 699
 700
 701
 702
 703
 704
 705
 706
 707
 708
 709
 710
 711
 712
 713
 714
 715
 716
 717
 718
 719
 720
 721
 722
 723
 724
 725
 726
 727
 728
 729
 730
 731
 732
 733
 734
 735
 736
 737
 738
 739
 740
 741
 742
 743
 744
 745
 746
 747
 748
 749
 750
 751
 752
 753
 754
 755
 756
 757
 758
 759
 760
 761
 762
 763
 764
 765
 766
 767
 768
 769
 770
 771
 772
 773
 774
 775
 776
 777
 778
 779
 780
 781
 782
 783
 784
 785
 786
 787
 788
 789
 790
 791
 792
 793
 794
 795
 796
 797
 798
 799
 800
 801
 802
 803
 804
 805
 806
 807
 808
 809
 810
 811
 812
 813
 814
 815
 816
 817
 818
 819
 820
 821
 822
 823
 824
 825
 826
 827
 828
 829
 830
 831
 832
 833
 834
 835
 836
 837
 838
 839
 840
 841
 842
 843
 844
 845
 846
 847
 848
 849
 850
 851
 852
 853
 854
 855
 856
 857
 858
 859
 860
 861
 862
 863
 864
 865
 866
 867
 868
 869
 870
 871
 872
 873
 874
 875
 876
 877
 878
 879
 880
 881
 882
 883
 884
 885
 886
 887
 888
 889
 890
 891
 892
 893
 894
 895
 896
 897
 898
 899
 900
 901
 902
 903
 904
 905
 906
 907
 908
 909
 910
 911
 912
 913
 914
 915
 916
 917
 918
 919
 920
 921
 922
 923
 924
 925
 926
 927
 928
 929
 930
 931
 932
 933
 934
 935
 936
 937
 938
 939
 940
 941
 942
 943
 944
 945
 946
 947
 948
 949
 950
 951
 952
 953
 954
 955
 956
 957
 958
 959
 960
 961
 962
 963
 964
 965
 966
 967
 968
 969
 970
 971
 972
 973
 974
 975
 976
 977
 978
 979
 980
 981
 982
 983
 984
 985
 986
 987
 988
 989
 990
 991
 992
 993
 994
 995
 996
 997
 998
 999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
 
;;; org-colview.el --- Column View in Org-mode

;; Copyright (C) 2004-2012  Free Software Foundation, Inc.

;; Author: Carsten Dominik <carsten at orgmode dot org>
;; Keywords: outlines, hypermedia, calendar, wp
;; Homepage: http://orgmode.org
;;
;; This file is part of GNU Emacs.
;;
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.

;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;;; Commentary:

;; This file contains the column view for Org.

;;; Code:

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

(declare-function org-agenda-redo "org-agenda" ())
(declare-function org-agenda-do-context-action "org-agenda" ())

(when (featurep 'xemacs)
  (error "Do not load this file into XEmacs, use 'org-colview-xemacs.el'."))

;;; Column View

(defvar org-columns-overlays nil
  "Holds the list of current column overlays.")

(defvar org-columns-current-fmt nil
  "Local variable, holds the currently active column format.")
(make-variable-buffer-local 'org-columns-current-fmt)
(defvar org-columns-current-fmt-compiled nil
  "Local variable, holds the currently active column format.
This is the compiled version of the format.")
(make-variable-buffer-local 'org-columns-current-fmt-compiled)
(defvar org-columns-current-widths nil
  "Loval variable, holds the currently widths of fields.")
(make-variable-buffer-local 'org-columns-current-widths)
(defvar org-columns-current-maxwidths nil
  "Loval variable, holds the currently active maximum column widths.")
(make-variable-buffer-local 'org-columns-current-maxwidths)
(defvar org-columns-begin-marker (make-marker)
  "Points to the position where last a column creation command was called.")
(defvar org-columns-top-level-marker (make-marker)
  "Points to the position where current columns region starts.")

(defvar org-columns-map (make-sparse-keymap)
  "The keymap valid in column display.")

(defun org-columns-content ()
  "Switch to contents view while in columns view."
  (interactive)
  (org-overview)
  (org-content))

(org-defkey org-columns-map "c" 'org-columns-content)
(org-defkey org-columns-map "o" 'org-overview)
(org-defkey org-columns-map "e" 'org-columns-edit-value)
(org-defkey org-columns-map "\C-c\C-t" 'org-columns-todo)
(org-defkey org-columns-map "\C-c\C-c" 'org-columns-set-tags-or-toggle)
(org-defkey org-columns-map "\C-c\C-o" 'org-columns-open-link)
(org-defkey org-columns-map "v" 'org-columns-show-value)
(org-defkey org-columns-map "q" 'org-columns-quit)
(org-defkey org-columns-map "r" 'org-columns-redo)
(org-defkey org-columns-map "g" 'org-columns-redo)
(org-defkey org-columns-map [left] 'backward-char)
(org-defkey org-columns-map "\M-b" 'backward-char)
(org-defkey org-columns-map "a" 'org-columns-edit-allowed)
(org-defkey org-columns-map "s" 'org-columns-edit-attributes)
(org-defkey org-columns-map "\M-f"
	    (lambda () (interactive) (goto-char (1+ (point)))))
(org-defkey org-columns-map [right]
	    (lambda () (interactive) (goto-char (1+ (point)))))
(org-defkey org-columns-map [down]
	    (lambda () (interactive)
	      (let ((col (current-column)))
		(beginning-of-line 2)
		(while (and (org-invisible-p2) (not (eobp)))
		  (beginning-of-line 2))
		(move-to-column col)
		(if (eq major-mode 'org-agenda-mode)
		    (org-agenda-do-context-action)))))
(org-defkey org-columns-map [up]
	    (lambda () (interactive)
	      (let ((col (current-column)))
		(beginning-of-line 0)
		(while (and (org-invisible-p2) (not (bobp)))
		  (beginning-of-line 0))
		(move-to-column col)
		(if (eq major-mode 'org-agenda-mode)
		    (org-agenda-do-context-action)))))
(org-defkey org-columns-map [(shift right)] 'org-columns-next-allowed-value)
(org-defkey org-columns-map "n" 'org-columns-next-allowed-value)
(org-defkey org-columns-map [(shift left)] 'org-columns-previous-allowed-value)
(org-defkey org-columns-map "p" 'org-columns-previous-allowed-value)
(org-defkey org-columns-map "<" 'org-columns-narrow)
(org-defkey org-columns-map ">" 'org-columns-widen)
(org-defkey org-columns-map [(meta right)] 'org-columns-move-right)
(org-defkey org-columns-map [(meta left)] 'org-columns-move-left)
(org-defkey org-columns-map [(shift meta right)] 'org-columns-new)
(org-defkey org-columns-map [(shift meta left)] 'org-columns-delete)
(dotimes (i 10)
  (org-defkey org-columns-map (number-to-string i)
	      `(lambda () (interactive)
		 (org-columns-next-allowed-value nil ,i))))

(easy-menu-define org-columns-menu org-columns-map "Org Column Menu"
  '("Column"
    ["Edit property" org-columns-edit-value t]
    ["Next allowed value" org-columns-next-allowed-value t]
    ["Previous allowed value" org-columns-previous-allowed-value t]
    ["Show full value" org-columns-show-value t]
    ["Edit allowed values" org-columns-edit-allowed t]
    "--"
    ["Edit column attributes" org-columns-edit-attributes t]
    ["Increase column width" org-columns-widen t]
    ["Decrease column width" org-columns-narrow t]
    "--"
    ["Move column right" org-columns-move-right t]
    ["Move column left" org-columns-move-left t]
    ["Add column" org-columns-new t]
    ["Delete column" org-columns-delete t]
    "--"
    ["CONTENTS" org-columns-content t]
    ["OVERVIEW" org-overview t]
    ["Refresh columns display" org-columns-redo t]
    "--"
    ["Open link" org-columns-open-link t]
    "--"
    ["Quit" org-columns-quit t]))

(defun org-columns-new-overlay (beg end &optional string face)
  "Create a new column overlay and add it to the list."
  (let ((ov (make-overlay beg end)))
    (overlay-put ov 'face (or face 'secondary-selection))
    (org-overlay-display ov string face)
    (push ov org-columns-overlays)
    ov))

(defun org-columns-display-here (&optional props dateline)
  "Overlay the current line with column display."
  (interactive)
  (let* ((fmt org-columns-current-fmt-compiled)
	 (beg (point-at-bol))
	 (level-face (save-excursion
		       (beginning-of-line 1)
		       (and (looking-at "\\(\\**\\)\\(\\* \\)")
			    (org-get-level-face 2))))
	 (ref-face (or level-face
		       (and (eq major-mode 'org-agenda-mode)
			    (get-text-property (point-at-bol) 'face))
		       'default))
	 (color (list :foreground (face-attribute ref-face :foreground)))
	 (face (list color 'org-column ref-face))
	 (face1 (list color 'org-agenda-column-dateline ref-face))
	 (cphr (get-text-property (point-at-bol) 'org-complex-heading-regexp))
	 pom property ass width f string ov column val modval s2 title calc)
    ;; Check if the entry is in another buffer.
    (unless props
      (if (eq major-mode 'org-agenda-mode)
	  (setq pom (or (org-get-at-bol 'org-hd-marker)
			(org-get-at-bol 'org-marker))
		props (if pom (org-entry-properties pom) nil))
	(setq props (org-entry-properties nil))))
    ;; Walk the format
    (while (setq column (pop fmt))
      (setq property (car column)
	    title (nth 1 column)
	    ass (if (equal property "ITEM")
		    (cons "ITEM"
			  ;; When in a buffer, get the whole line,
			  ;; we'll clean it later…
			  (if (derived-mode-p 'org-mode)
			      (save-match-data
				(org-no-properties
				 (org-remove-tabs
				  (buffer-substring-no-properties
				   (point-at-bol) (point-at-eol)))))
			    ;; In agenda, just get the `txt' property
			    (org-no-properties
			     (or (org-get-at-bol 'txt)
				 (buffer-substring
				  (point) (progn (end-of-line) (point)))))))
		  (assoc property props))
	    width (or (cdr (assoc property org-columns-current-maxwidths))
		      (nth 2 column)
		      (length property))
	    f (format "%%-%d.%ds | " width width)
	    calc (nth 7 column)
	    val (or (cdr ass) "")
	    modval (cond ((and org-columns-modify-value-for-display-function
			       (functionp
				org-columns-modify-value-for-display-function))
			  (funcall org-columns-modify-value-for-display-function
				   title val))
			 ((equal property "ITEM")
			  (org-columns-cleanup-item
			   val org-columns-current-fmt-compiled
			   (or org-complex-heading-regexp cphr)))
			 ((and calc (functionp calc)
			       (not (string= val ""))
			       (not (get-text-property 0 'org-computed val)))
			  (org-columns-number-to-string
			   (funcall calc (org-columns-string-to-number
					  val (nth 4 column)))
			   (nth 4 column)))))
      (setq s2 (org-columns-add-ellipses (or modval val) width))
      (setq string (format f s2))
      ;; Create the overlay
      (org-unmodified
       (setq ov (org-columns-new-overlay
		 beg (setq beg (1+ beg)) string (if dateline face1 face)))
       (overlay-put ov 'keymap org-columns-map)
       (overlay-put ov 'org-columns-key property)
       (overlay-put ov 'org-columns-value (cdr ass))
       (overlay-put ov 'org-columns-value-modified modval)
       (overlay-put ov 'org-columns-pom pom)
       (overlay-put ov 'org-columns-format f)
       (overlay-put ov 'line-prefix "")
       (overlay-put ov 'wrap-prefix ""))
      (if (or (not (char-after beg))
	      (equal (char-after beg) ?\n))
	  (let ((inhibit-read-only t))
	    (save-excursion
	      (goto-char beg)
	      (org-unmodified (insert " ")))))) ;; FIXME: add props and remove later?
      ;; Make the rest of the line disappear.
      (org-unmodified
       (setq ov (org-columns-new-overlay beg (point-at-eol)))
       (overlay-put ov 'invisible t)
       (overlay-put ov 'keymap org-columns-map)
       (overlay-put ov 'intangible t)
       (overlay-put ov 'line-prefix "")
       (overlay-put ov 'wrap-prefix "")
       (push ov org-columns-overlays)
       (setq ov (make-overlay (1- (point-at-eol)) (1+ (point-at-eol))))
       (overlay-put ov 'keymap org-columns-map)
       (push ov org-columns-overlays)
       (let ((inhibit-read-only t))
	 (put-text-property (max (point-min) (1- (point-at-bol)))
			  (min (point-max) (1+ (point-at-eol)))
			  'read-only "Type `e' to edit property")))))

(defun org-columns-add-ellipses (string width)
  "Truncate STRING with WIDTH characters, with ellipses."
  (cond
   ((<= (length string) width) string)
   ((<= width (length org-columns-ellipses))
    (substring org-columns-ellipses 0 width))
   (t (concat (substring string 0 (- width (length org-columns-ellipses)))
	      org-columns-ellipses))))

(defvar org-columns-full-header-line-format nil
  "The full header line format, will be shifted by horizontal scrolling." )
(defvar org-previous-header-line-format nil
  "The header line format before column view was turned on.")
(defvar org-columns-inhibit-recalculation nil
  "Inhibit recomputing of columns on column view startup.")
(defvar org-columns-flyspell-was-active nil
  "Remember the state of `flyspell-mode' before column view.
Flyspell-mode can cause problems in columns view, so it is turned off
for the duration of the command.")

(defvar header-line-format)
(defvar org-columns-previous-hscroll 0)

(defun org-columns-display-here-title ()
  "Overlay the newline before the current line with the table title."
  (interactive)
  (let ((fmt org-columns-current-fmt-compiled)
	string (title "")
	property width f column str widths)
    (while (setq column (pop fmt))
      (setq property (car column)
	    str (or (nth 1 column) property)
	    width (or (cdr (assoc property org-columns-current-maxwidths))
		      (nth 2 column)
		      (length str))
	    widths (push width widths)
	    f (format "%%-%d.%ds | " width width)
	    string (format f str)
	    title (concat title string)))
    (setq title (concat
		 (org-add-props " " nil 'display '(space :align-to 0))
		 ;;(org-add-props title nil 'face '(:weight bold :underline t :inherit default))))
		 (org-add-props title nil 'face 'org-column-title)))
    (org-set-local 'org-previous-header-line-format header-line-format)
    (org-set-local 'org-columns-current-widths (nreverse widths))
    (setq org-columns-full-header-line-format title)
    (setq org-columns-previous-hscroll -1)
;    (org-columns-hscoll-title)
    (org-add-hook 'post-command-hook 'org-columns-hscoll-title nil 'local)))

(defun org-columns-hscoll-title ()
  "Set the `header-line-format' so that it scrolls along with the table."
  (sit-for .0001) ; need to force a redisplay to update window-hscroll
  (when (not (= (window-hscroll) org-columns-previous-hscroll))
    (setq header-line-format
	  (concat (substring org-columns-full-header-line-format 0 1)
		  (substring org-columns-full-header-line-format
			     (1+ (window-hscroll))))
	  org-columns-previous-hscroll (window-hscroll))
    (force-mode-line-update)))

(defvar org-colview-initial-truncate-line-value nil
  "Remember the value of `truncate-lines' across colview.")

(defun org-columns-remove-overlays ()
  "Remove all currently active column overlays."
  (interactive)
  (when (marker-buffer org-columns-begin-marker)
    (with-current-buffer (marker-buffer org-columns-begin-marker)
      (when (local-variable-p 'org-previous-header-line-format)
	(setq header-line-format org-previous-header-line-format)
	(kill-local-variable 'org-previous-header-line-format)
	(remove-hook 'post-command-hook 'org-columns-hscoll-title 'local))
      (move-marker org-columns-begin-marker nil)
      (move-marker org-columns-top-level-marker nil)
      (org-unmodified
       (mapc 'delete-overlay org-columns-overlays)
       (setq org-columns-overlays nil)
       (let ((inhibit-read-only t))
	 (remove-text-properties (point-min) (point-max) '(read-only t))))
      (when org-columns-flyspell-was-active
	(flyspell-mode 1))
      (when (local-variable-p 'org-colview-initial-truncate-line-value)
	(setq truncate-lines org-colview-initial-truncate-line-value)))))

(defun org-columns-cleanup-item (item fmt cphr)
  "Remove from ITEM what is a column in the format FMT.
CPHR is the complex heading regexp to use for parsing ITEM."
  (let (fixitem)
    (if (not cphr)
	item
      (unless (string-match "^\*+ " item)
	(setq item (concat "* " item) fixitem t))
      (if (string-match cphr item)
	  (setq item
		(concat
		 (org-add-props (match-string 1 item) nil
		   'org-whitespace (* 2 (1- (org-reduced-level (- (match-end 1) (match-beginning 1))))))
		 (and (match-end 2) (not (assoc "TODO" fmt)) (concat " " (match-string 2 item)))
		 (and (match-end 3) (not (assoc "PRIORITY" fmt)) (concat " " (match-string 3 item)))
		 " " (save-match-data (org-columns-compact-links (or (match-string 4 item) "")))
		 (and (match-end 5) (not (assoc "TAGS" fmt)) (concat " " (match-string 5 item)))))
	(add-text-properties
	 0 (1+ (match-end 1))
	 (list 'org-whitespace (* 2 (1- (org-reduced-level (- (match-end 1) (match-beginning 1))))))
	 item))
      (if fixitem (replace-regexp-in-string "^\*+ " "" item) item))))

(defun org-columns-compact-links (s)
  "Replace [[link][desc]] with [desc] or [link]."
  (while (string-match org-bracket-link-regexp s)
    (setq s (replace-match
	     (concat "[" (match-string (if (match-end 3) 3 1) s) "]")
	     t t s)))
  s)

(defun org-columns-show-value ()
  "Show the full value of the property."
  (interactive)
  (let ((value (get-char-property (point) 'org-columns-value)))
    (message "Value is: %s" (or value ""))))

(defvar org-agenda-columns-active) ;; defined in org-agenda.el

(defun org-columns-quit ()
  "Remove the column overlays and in this way exit column editing."
  (interactive)
  (org-unmodified
   (org-columns-remove-overlays)
   (let ((inhibit-read-only t))
     (remove-text-properties (point-min) (point-max) '(read-only t))))
  (when (eq major-mode 'org-agenda-mode)
    (setq org-agenda-columns-active nil)
    (message
     "Modification not yet reflected in Agenda buffer, use `r' to refresh")))

(defun org-columns-check-computed ()
  "Check if this column value is computed.
If yes, throw an error indicating that changing it does not make sense."
  (let ((val (get-char-property (point) 'org-columns-value)))
    (when (and (stringp val)
	       (get-char-property 0 'org-computed val))
      (error "This value is computed from the entry's children"))))

(defun org-columns-todo (&optional arg)
  "Change the TODO state during column view."
  (interactive "P")
  (org-columns-edit-value "TODO"))

(defun org-columns-set-tags-or-toggle (&optional arg)
  "Toggle checkbox at point, or set tags for current headline."
  (interactive "P")
  (if (string-match "\\`\\[[ xX-]\\]\\'"
		    (get-char-property (point) 'org-columns-value))
      (org-columns-next-allowed-value)
    (org-columns-edit-value "TAGS")))

(defun org-columns-edit-value (&optional key)
  "Edit the value of the property at point in column view.
Where possible, use the standard interface for changing this line."
  (interactive)
  (org-columns-check-computed)
  (let* ((col (current-column))
	 (key (or key (get-char-property (point) 'org-columns-key)))
	 (value (get-char-property (point) 'org-columns-value))
	 (bol (point-at-bol)) (eol (point-at-eol))
	 (pom (or (get-text-property bol 'org-hd-marker)
		  (point))) ; keep despite of compiler waring
	 (line-overlays
	  (delq nil (mapcar (lambda (x)
			      (and (eq (overlay-buffer x) (current-buffer))
				   (>= (overlay-start x) bol)
				   (<= (overlay-start x) eol)
				   x))
			    org-columns-overlays)))
	 (org-columns-time (time-to-number-of-days (current-time)))
	 nval eval allowed)
    (cond
     ((equal key "CLOCKSUM")
      (error "This special column cannot be edited"))
     ((equal key "ITEM")
      (setq eval '(org-with-point-at pom
		    (org-edit-headline))))
     ((equal key "TODO")
      (setq eval '(org-with-point-at
		   pom
		   (call-interactively 'org-todo))))
     ((equal key "PRIORITY")
      (setq eval '(org-with-point-at pom
		    (call-interactively 'org-priority))))
     ((equal key "TAGS")
      (setq eval '(org-with-point-at pom
		    (let ((org-fast-tag-selection-single-key
			   (if (eq org-fast-tag-selection-single-key 'expert)
			       t org-fast-tag-selection-single-key)))
		      (call-interactively 'org-set-tags)))))
     ((equal key "DEADLINE")
      (setq eval '(org-with-point-at pom
		    (call-interactively 'org-deadline))))
     ((equal key "SCHEDULED")
      (setq eval '(org-with-point-at pom
		    (call-interactively 'org-schedule))))
     ((equal key "BEAMER_env")
      (setq eval '(org-with-point-at pom
		    (call-interactively 'org-beamer-select-environment))))
     (t
      (setq allowed (org-property-get-allowed-values pom key 'table))
      (if allowed
	  (setq nval (org-icompleting-read
		      "Value: " allowed nil
		      (not (get-text-property 0 'org-unrestricted
					      (caar allowed)))))
	(setq nval (read-string "Edit: " value)))
      (setq nval (org-trim nval))
      (when (not (equal nval value))
	(setq eval '(org-entry-put pom key nval)))))
    (when eval

      (cond
       ((equal major-mode 'org-agenda-mode)
	(org-columns-eval eval)
	;; The following let preserves the current format, and makes sure
	;; that in only a single file things need to be updated.
	(let* ((org-agenda-overriding-columns-format org-columns-current-fmt)
	       (buffer (marker-buffer pom))
	       (org-agenda-contributing-files
		(list (with-current-buffer buffer
			(buffer-file-name (buffer-base-buffer))))))
	  (org-agenda-columns)))
       (t
	(let ((inhibit-read-only t))
	  (org-unmodified
	   (remove-text-properties
	    (max (point-min) (1- bol)) eol '(read-only t)))
	  (unwind-protect
	      (progn
		(setq org-columns-overlays
		      (org-delete-all line-overlays org-columns-overlays))
		(mapc 'delete-overlay line-overlays)
		(org-columns-eval eval))
	    (org-columns-display-here)))
	(org-move-to-column col)
	(if (and (derived-mode-p 'org-mode)
		 (nth 3 (assoc key org-columns-current-fmt-compiled)))
	    (org-columns-update key)))))))

(defun org-edit-headline () ; FIXME: this is not columns specific.  Make interactive?????  Use from agenda????
  "Edit the current headline, the part without TODO keyword, TAGS."
  (org-back-to-heading)
  (when (looking-at org-todo-line-regexp)
    (let ((pos (point))
	  (pre (buffer-substring (match-beginning 0) (match-beginning 3)))
	  (txt (match-string 3))
	  (post "")
	  txt2)
      (if (string-match (org-re "[ \t]+:[[:alnum:]:_@#%]+:[ \t]*$") txt)
	  (setq post (match-string 0 txt)
		txt (substring txt 0 (match-beginning 0))))
      (setq txt2 (read-string "Edit: " txt))
      (when (not (equal txt txt2))
	(goto-char pos)
	(insert pre txt2 post)
	(delete-region (point) (point-at-eol))
	(org-set-tags nil t)))))

(defun org-columns-edit-allowed ()
  "Edit the list of allowed values for the current property."
  (interactive)
  (let* ((pom (or (org-get-at-bol 'org-marker)
		  (org-get-at-bol 'org-hd-marker)
		  (point)))
	 (key (get-char-property (point) 'org-columns-key))
	 (key1 (concat key "_ALL"))
	 (allowed (org-entry-get pom key1 t))
	 nval)
    ;; FIXME: Cover editing TODO, TAGS etc in-buffer settings.????
    ;; FIXME: Write back to #+PROPERTY setting if that is needed.
    (setq nval (read-string "Allowed: " allowed))
    (org-entry-put
     (cond ((marker-position org-entry-property-inherited-from)
	    org-entry-property-inherited-from)
	   ((marker-position org-columns-top-level-marker)
	    org-columns-top-level-marker)
	   (t pom))
     key1 nval)))

(defun org-columns-eval (form)
  (let (hidep)
    (save-excursion
      (beginning-of-line 1)
      ;; `next-line' is needed here, because it skips invisible line.
      (condition-case nil (org-no-warnings (next-line 1)) (error nil))
      (setq hidep (org-at-heading-p 1)))
    (eval form)
    (and hidep (hide-entry))))

(defun org-columns-previous-allowed-value ()
  "Switch to the previous allowed value for this column."
  (interactive)
  (org-columns-next-allowed-value t))

(defun org-columns-next-allowed-value (&optional previous nth)
  "Switch to the next allowed value for this column.
When PREVIOUS is set, go to the previous value.  When NTH is
an integer, select that value."
  (interactive)
  (org-columns-check-computed)
  (let* ((col (current-column))
	 (key (get-char-property (point) 'org-columns-key))
	 (value (get-char-property (point) 'org-columns-value))
	 (bol (point-at-bol)) (eol (point-at-eol))
	 (pom (or (get-text-property bol 'org-hd-marker)
		  (point))) ; keep despite of compiler waring
	 (line-overlays
	  (delq nil (mapcar (lambda (x)
			      (and (eq (overlay-buffer x) (current-buffer))
				   (>= (overlay-start x) bol)
				   (<= (overlay-start x) eol)
				   x))
			    org-columns-overlays)))
	 (allowed (or (org-property-get-allowed-values pom key)
		      (and (memq
			    (nth 4 (assoc key org-columns-current-fmt-compiled))
			    '(checkbox checkbox-n-of-m checkbox-percent))
			   '("[ ]" "[X]"))
		      (org-colview-construct-allowed-dates value)))
	 nval)
    (when (integerp nth)
      (setq nth (1- nth))
      (if (= nth -1) (setq nth 9)))
    (when (equal key "ITEM")
      (error "Cannot edit item headline from here"))
    (unless (or allowed (member key '("SCHEDULED" "DEADLINE")))
      (error "Allowed values for this property have not been defined"))
    (if (member key '("SCHEDULED" "DEADLINE"))
	(setq nval (if previous 'earlier 'later))
      (if previous (setq allowed (reverse allowed)))
      (cond
       (nth
	(setq nval (nth nth allowed))
	(if (not nval)
	    (error "There are only %d allowed values for property `%s'"
		   (length allowed) key)))
       ((member value allowed)
	(setq nval (or (car (cdr (member value allowed)))
		       (car allowed)))
	(if (equal nval value)
	    (error "Only one allowed value for this property")))
       (t (setq nval (car allowed)))))
    (cond
     ((equal major-mode 'org-agenda-mode)
      (org-columns-eval '(org-entry-put pom key nval))
      ;; The following let preserves the current format, and makes sure
      ;; that in only a single file things need to be updated.
      (let* ((org-agenda-overriding-columns-format org-columns-current-fmt)
	     (buffer (marker-buffer pom))
	     (org-agenda-contributing-files
	      (list (with-current-buffer buffer
		      (buffer-file-name (buffer-base-buffer))))))
	(org-agenda-columns)))
     (t
      (let ((inhibit-read-only t))
	(remove-text-properties (1- bol) eol '(read-only t))
	(unwind-protect
	    (progn
	      (setq org-columns-overlays
		    (org-delete-all line-overlays org-columns-overlays))
	      (mapc 'delete-overlay line-overlays)
	      (org-columns-eval '(org-entry-put pom key nval)))
	  (org-columns-display-here)))
      (org-move-to-column col)
      (and (nth 3 (assoc key org-columns-current-fmt-compiled))
	   (org-columns-update key))))))

(defun org-colview-construct-allowed-dates (s)
  "Construct a list of three dates around the date in S.
This respects the format of the time stamp in S, active or non-active,
and also including time or not.  S must be just a time stamp, no text
around it."
  (when (and s (string-match (concat "^" org-ts-regexp3 "$") s))
    (let* ((time (org-parse-time-string s 'nodefaults))
	   (active (equal (string-to-char s) ?<))
	   (fmt (funcall (if (nth 1 time) 'cdr 'car) org-time-stamp-formats))
	   time-before time-after)
      (unless active (setq fmt (concat "[" (substring fmt 1 -1) "]")))
      (setf (car time) (or (car time) 0))
      (setf (nth 1 time) (or (nth 1 time) 0))
      (setf (nth 2 time) (or (nth 2 time) 0))
      (setq time-before (copy-sequence time))
      (setq time-after (copy-sequence time))
      (setf (nth 3 time-before) (1- (nth 3 time)))
      (setf (nth 3 time-after) (1+ (nth 3 time)))
      (mapcar (lambda (x) (format-time-string fmt (apply 'encode-time x)))
	      (list time-before time time-after)))))

(defun org-verify-version (task)
  (cond
   ((eq task 'columns)
    (if (or (featurep 'xemacs)
	    (< emacs-major-version 22))
	(error "Emacs 22 is required for the columns feature")))))

(defun org-columns-open-link (&optional arg)
  (interactive "P")
  (let ((value (get-char-property (point) 'org-columns-value)))
    (org-open-link-from-string value arg)))

(defun org-columns-get-format-and-top-level ()
  (let (fmt (org-columns-get-format))
    (org-columns-goto-top-level)
    fmt))

(defun org-columns-get-format (&optional fmt-string)
  (interactive)
  (let (fmt-as-property)
    (when (condition-case nil (org-back-to-heading) (error nil))
      (setq fmt-as-property (org-entry-get nil "COLUMNS" t)))
    (setq fmt (or fmt-string fmt-as-property org-columns-default-format))
    (org-set-local 'org-columns-current-fmt fmt)
    (org-columns-compile-format fmt)
    fmt))

(defun org-columns-goto-top-level ()
  (let ()
    (when (condition-case nil (org-back-to-heading) (error nil))
      (org-entry-get nil "COLUMNS" t)
    (if (marker-position org-entry-property-inherited-from)
	(move-marker org-columns-top-level-marker
		     org-entry-property-inherited-from)
      (move-marker org-columns-top-level-marker (point))))))

(defun org-columns (&optional columns-fmt-string)
  "Turn on column view on an org-mode file.  When `COLUMNS-FMT-STRING'
is specified e.g. \"%66ITEM(Task) %6Effort(Estim.){:}\"), it is
treated as format for columns, COLUMNS property."
  (interactive)
  (org-verify-version 'columns)
  (org-columns-remove-overlays)
  (move-marker org-columns-begin-marker (point))
  (let ((org-columns-time (time-to-number-of-days (current-time)))
	beg end fmt cache maxwidths)
    (org-columns-goto-top-level)
    (setq fmt (org-columns-get-format columns-fmt-string))
    (save-excursion
      (goto-char org-columns-top-level-marker)
      (setq beg (point))
      (unless org-columns-inhibit-recalculation
	(org-columns-compute-all))
      (setq end (or (condition-case nil (org-end-of-subtree t t) (error nil))
		    (point-max)))
      ;; Get and cache the properties
      (goto-char beg)
      (when (assoc "CLOCKSUM" org-columns-current-fmt-compiled)
	(save-excursion
	  (save-restriction
	    (narrow-to-region beg end)
	    (org-clock-sum))))
      (while (re-search-forward org-outline-regexp-bol end t)
	(if (and org-columns-skip-archived-trees
		 (looking-at (concat ".*:" org-archive-tag ":")))
	    (org-end-of-subtree t)
	  (push (cons (org-current-line) (org-entry-properties)) cache)))
      (when cache
	(setq maxwidths (org-columns-get-autowidth-alist fmt cache))
	(org-set-local 'org-columns-current-maxwidths maxwidths)
	(org-columns-display-here-title)
	(when (org-set-local 'org-columns-flyspell-was-active
			     (org-bound-and-true-p flyspell-mode))
	  (flyspell-mode 0))
	(unless (local-variable-p 'org-colview-initial-truncate-line-value)
	  (org-set-local 'org-colview-initial-truncate-line-value
			 truncate-lines))
	(setq truncate-lines t)
	(mapc (lambda (x)
		(org-goto-line (car x))
		(org-columns-display-here (cdr x)))
	      cache)))))

(eval-when-compile (defvar org-columns-time))

(defvar org-columns-compile-map
  '(("none" none +)
    (":" add_times +)
    ("+" add_numbers +)
    ("$" currency +)
    ("X" checkbox +)
    ("X/" checkbox-n-of-m +)
    ("X%" checkbox-percent +)
    ("max" max_numbers max)
    ("min" min_numbers min)
    ("mean" mean_numbers
     (lambda (&rest x) (/ (apply '+ x) (float (length x)))))
    (":max" max_times max)
    (":min" min_times min)
    (":mean" mean_times
     (lambda (&rest x) (/ (apply '+ x) (float (length x)))))
    ("@min" min_age min (lambda (x) (- org-columns-time x)))
    ("@max" max_age max (lambda (x) (- org-columns-time x)))
    ("@mean" mean_age
     (lambda (&rest x) (/ (apply '+ x) (float (length x))))
     (lambda (x) (- org-columns-time x)))
    ("est+" estimate org-estimate-combine))
  "Operator <-> format,function,calc  map.
Used to compile/uncompile columns format and completing read in
interactive function `org-columns-new'.

operator    string used in #+COLUMNS definition describing the
	    summary type
format      symbol describing summary type selected interactively in
	    `org-columns-new' and internally in
	    `org-columns-number-to-string' and
	    `org-columns-string-to-number'
function    called with a list of values as argument to calculate
	    the summary value
calc        function called on every element before summarizing.  This is
	    optional and should only be specified if needed")

(defun org-columns-new (&optional prop title width op fmt fun &rest rest)
  "Insert a new column, to the left of the current column."
  (interactive)
  (let ((editp (and prop (assoc prop org-columns-current-fmt-compiled)))
	cell)
    (setq prop (org-icompleting-read
		"Property: " (mapcar 'list (org-buffer-property-keys t nil t))
		nil nil prop))
    (setq title (read-string (concat "Column title [" prop "]: ") (or title prop)))
    (setq width (read-string "Column width: " (if width (number-to-string width))))
    (if (string-match "\\S-" width)
	(setq width (string-to-number width))
      (setq width nil))
    (setq fmt (org-icompleting-read
	       "Summary [none]: "
	       (mapcar (lambda (x) (list (symbol-name (cadr x))))
		       org-columns-compile-map)
	       nil t))
    (setq fmt (intern fmt)
	  fun (cdr (assoc fmt (mapcar 'cdr org-columns-compile-map))))
    (if (eq fmt 'none) (setq fmt nil))
    (if editp
	(progn
	  (setcar editp prop)
	  (setcdr editp (list title width nil fmt nil fun)))
      (setq cell (nthcdr (1- (current-column))
			 org-columns-current-fmt-compiled))
      (setcdr cell (cons (list prop title width nil fmt nil
			       (car fun) (cadr fun))
			 (cdr cell))))
    (org-columns-store-format)
    (org-columns-redo)))

(defun org-columns-delete ()
  "Delete the column at point from columns view."
  (interactive)
  (let* ((n (current-column))
	 (title (nth 1 (nth n org-columns-current-fmt-compiled))))
    (when (y-or-n-p
	   (format "Are you sure you want to remove column \"%s\"? " title))
      (setq org-columns-current-fmt-compiled
	    (delq (nth n org-columns-current-fmt-compiled)
		  org-columns-current-fmt-compiled))
      (org-columns-store-format)
      (org-columns-redo)
      (if (>= (current-column) (length org-columns-current-fmt-compiled))
	  (backward-char 1)))))

(defun org-columns-edit-attributes ()
  "Edit the attributes of the current column."
  (interactive)
  (let* ((n (current-column))
	 (info (nth n org-columns-current-fmt-compiled)))
    (apply 'org-columns-new info)))

(defun org-columns-widen (arg)
  "Make the column wider by ARG characters."
  (interactive "p")
  (let* ((n (current-column))
	 (entry (nth n org-columns-current-fmt-compiled))
	 (width (or (nth 2 entry)
		    (cdr (assoc (car entry) org-columns-current-maxwidths)))))
    (setq width (max 1 (+ width arg)))
    (setcar (nthcdr 2 entry) width)
    (org-columns-store-format)
    (org-columns-redo)))

(defun org-columns-narrow (arg)
  "Make the column narrower by ARG characters."
  (interactive "p")
  (org-columns-widen (- arg)))

(defun org-columns-move-right ()
  "Swap this column with the one to the right."
  (interactive)
  (let* ((n (current-column))
	 (cell (nthcdr n org-columns-current-fmt-compiled))
	 e)
    (when (>= n (1- (length org-columns-current-fmt-compiled)))
      (error "Cannot shift this column further to the right"))
    (setq e (car cell))
    (setcar cell (car (cdr cell)))
    (setcdr cell (cons e (cdr (cdr cell))))
    (org-columns-store-format)
    (org-columns-redo)
    (forward-char 1)))

(defun org-columns-move-left ()
  "Swap this column with the one to the left."
  (interactive)
  (let* ((n (current-column)))
    (when (= n 0)
      (error "Cannot shift this column further to the left"))
    (backward-char 1)
    (org-columns-move-right)
    (backward-char 1)))

(defun org-columns-store-format ()
  "Store the text version of the current columns format in appropriate place.
This is either in the COLUMNS property of the node starting the current column
display, or in the #+COLUMNS line of the current buffer."
  (let (fmt (cnt 0))
    (setq fmt (org-columns-uncompile-format org-columns-current-fmt-compiled))
    (org-set-local 'org-columns-current-fmt fmt)
    (if (marker-position org-columns-top-level-marker)
	(save-excursion
	  (goto-char org-columns-top-level-marker)
	  (if (and (org-at-heading-p)
		   (org-entry-get nil "COLUMNS"))
	      (org-entry-put nil "COLUMNS" fmt)
	    (goto-char (point-min))
	    ;; Overwrite all #+COLUMNS lines....
	    (while (re-search-forward "^#\\+COLUMNS:.*" nil t)
	      (setq cnt (1+ cnt))
	      (replace-match (concat "#+COLUMNS: " fmt) t t))
	    (unless (> cnt 0)
	      (goto-char (point-min))
	      (or (org-at-heading-p t) (outline-next-heading))
	      (let ((inhibit-read-only t))
		(insert-before-markers "#+COLUMNS: " fmt "\n")))
	    (org-set-local 'org-columns-default-format fmt))))))

(defvar org-agenda-overriding-columns-format nil
  "When set, overrides any other format definition for the agenda.
Don't set this, this is meant for dynamic scoping.")

(defun org-columns-get-autowidth-alist (s cache)
  "Derive the maximum column widths from the format and the cache."
  (let ((start 0) rtn)
    (while (string-match (org-re "%\\([[:alpha:]][[:alnum:]_-]*\\)") s start)
      (push (cons (match-string 1 s) 1) rtn)
      (setq start (match-end 0)))
    (mapc (lambda (x)
	    (setcdr x (apply 'max
			     (mapcar
			      (lambda (y)
				(length (or (cdr (assoc (car x) (cdr y))) " ")))
			      cache))))
	  rtn)
    rtn))

(defun org-columns-compute-all ()
  "Compute all columns that have operators defined."
  (org-unmodified
   (remove-text-properties (point-min) (point-max) '(org-summaries t)))
  (let ((columns org-columns-current-fmt-compiled)
	(org-columns-time (time-to-number-of-days (current-time)))
	col)
    (while (setq col (pop columns))
      (when (nth 3 col)
	(save-excursion
	  (org-columns-compute (car col)))))))

(defun org-columns-update (property)
  "Recompute PROPERTY, and update the columns display for it."
  (org-columns-compute property)
  (let (fmt val pos)
    (save-excursion
      (mapc (lambda (ov)
	      (when (equal (overlay-get ov 'org-columns-key) property)
		(setq pos (overlay-start ov))
		(goto-char pos)
		(when (setq val (cdr (assoc property
					    (get-text-property
					     (point-at-bol) 'org-summaries))))
		  (setq fmt (overlay-get ov 'org-columns-format))
		  (overlay-put ov 'org-columns-value val)
		  (overlay-put ov 'display (format fmt val)))))
	    org-columns-overlays))))

(defvar org-inlinetask-min-level
  (if (featurep 'org-inlinetask) org-inlinetask-min-level 15))
(defun org-columns-compute (property)
  "Sum the values of property PROPERTY hierarchically, for the entire buffer."
  (interactive)
  (let* ((re org-outline-regexp-bol)
	 (lmax 30) ; Does anyone use deeper levels???
	 (lvals (make-vector lmax nil))
	 (lflag (make-vector lmax nil))
	 (level 0)
	 (ass (assoc property org-columns-current-fmt-compiled))
	 (format (nth 4 ass))
	 (printf (nth 5 ass))
	 (fun (nth 6 ass))
	 (calc (or (nth 7 ass) 'identity))
	 (beg org-columns-top-level-marker)
	 (inminlevel org-inlinetask-min-level)
	 (last-level org-inlinetask-min-level)
	 val valflag flag end sumpos sum-alist sum str str1 useval)
    (save-excursion
      ;; Find the region to compute
      (goto-char beg)
      (setq end (condition-case nil (org-end-of-subtree t) (error (point-max))))
      (goto-char end)
      ;; Walk the tree from the back and do the computations
      (while (re-search-backward re beg t)
	(setq sumpos (match-beginning 0)
	      last-level (if (not (or (zerop level) (eq level inminlevel)))
			     level last-level)
	      level (org-outline-level)
	      val (org-entry-get nil property)
	      valflag (and val (string-match "\\S-" val)))
	(cond
	 ((< level last-level)
	  ;; put the sum of lower levels here as a property
	  (setq sum (+ (if (and (/= last-level inminlevel)
				(aref lvals last-level))
			   (apply fun (aref lvals last-level)) 0)
		       (if (aref lvals inminlevel)
			   (apply fun (aref lvals inminlevel)) 0))
		flag (or (aref lflag last-level) ; any valid entries from children?
			 (aref lflag inminlevel)) ; or inline tasks?
		str (org-columns-number-to-string sum format printf)
		str1 (org-add-props (copy-sequence str) nil 'org-computed t 'face 'bold)
		useval (if flag str1 (if valflag val ""))
		sum-alist (get-text-property sumpos 'org-summaries))
	  (if (assoc property sum-alist)
	      (setcdr (assoc property sum-alist) useval)
	    (push (cons property useval) sum-alist)
	    (org-unmodified
	     (add-text-properties sumpos (1+ sumpos)
				  (list 'org-summaries sum-alist))))
	  (when (and val (not (equal val (if flag str val))))
	    (org-entry-put nil property (if flag str val)))
	  ;; add current to current level accumulator
	  (when (or flag valflag)
	    (push (if flag
		      sum
		    (funcall calc (org-columns-string-to-number
				   (if flag str val) format)))
		  (aref lvals level))
	    (aset lflag level t))
	  ;; clear accumulators for deeper levels
	  (loop for l from (1+ level) to (1- lmax) do
		(aset lvals l nil)
		(aset lflag l nil)))
	 ((>= level last-level)
	  ;; add what we have here to the accumulator for this level
	  (when valflag
	    (push (funcall calc (org-columns-string-to-number val format))
		  (aref lvals level))
	    (aset lflag level t)))
	 (t (error "This should not happen")))))))

(defun org-columns-redo ()
  "Construct the column display again."
  (interactive)
  (message "Recomputing columns...")
  (let ((line (org-current-line))
	(col (current-column)))
    (save-excursion
      (if (marker-position org-columns-begin-marker)
	  (goto-char org-columns-begin-marker))
      (org-columns-remove-overlays)
      (if (derived-mode-p 'org-mode)
	  (call-interactively 'org-columns)
	(org-agenda-redo)
	(call-interactively 'org-agenda-columns)))
    (org-goto-line line)
    (move-to-column col))
  (message "Recomputing columns...done"))

(defun org-columns-not-in-agenda ()
  (if (eq major-mode 'org-agenda-mode)
      (error "This command is only allowed in Org-mode buffers")))

(defun org-string-to-number (s)
  "Convert string to number, and interpret hh:mm:ss."
  (if (not (string-match ":" s))
      (string-to-number s)
    (let ((l (nreverse (org-split-string s ":"))) (sum 0.0))
      (while l
	(setq sum (+ (string-to-number (pop l)) (/ sum 60))))
      sum)))

(defun org-columns-number-to-string (n fmt &optional printf)
  "Convert a computed column number to a string value, according to FMT."
  (cond
   ((memq fmt '(estimate)) (org-estimate-print n printf))
   ((not (numberp n)) "")
   ((memq fmt '(add_times max_times min_times mean_times))
    (let* ((h (floor n)) (m (floor (+ 0.5 (* 60 (- n h))))))
      (format org-time-clocksum-format h m)))
   ((eq fmt 'checkbox)
    (cond ((= n (floor n)) "[X]")
	  ((> n 1.) "[-]")
	  (t "[ ]")))
   ((memq fmt '(checkbox-n-of-m checkbox-percent))
    (let* ((n1 (floor n)) (n2 (floor (+ .5 (* 1000000 (- n n1))))))
      (org-nofm-to-completion n1 (+ n2 n1) (eq fmt 'checkbox-percent))))
   (printf (format printf n))
   ((eq fmt 'currency)
    (format "%.2f" n))
   ((memq fmt '(min_age max_age mean_age))
    (org-format-time-period n))
   (t (number-to-string n))))

(defun org-nofm-to-completion (n m &optional percent)
  (if (not percent)
      (format "[%d/%d]" n m)
    (format "[%d%%]"(floor (+ 0.5 (* 100. (/ (* 1.0 n) m)))))))


(defun org-columns-string-to-number (s fmt)
  "Convert a column value to a number that can be used for column computing."
  (if s
      (cond
       ((memq fmt '(min_age max_age mean_age))
        (cond ((string= s "") org-columns-time)
              ((string-match
                "\\([0-9]+\\)d \\([0-9]+\\)h \\([0-9]+\\)m \\([0-9]+\\)s"
                s)
               (+ (* 60 (+ (* 60 (+ (* 24 (string-to-number (match-string 1 s)))
                                    (string-to-number (match-string 2 s))))
                           (string-to-number (match-string 3 s))))
                  (string-to-number (match-string 4 s))))
              (t (time-to-number-of-days (apply 'encode-time
                                                (org-parse-time-string s t))))))
       ((string-match ":" s)
        (let ((l (nreverse (org-split-string s ":"))) (sum 0.0))
          (while l
            (setq sum (+ (string-to-number (pop l)) (/ sum 60))))
          sum))
       ((memq fmt '(checkbox checkbox-n-of-m checkbox-percent))
        (if (equal s "[X]") 1. 0.000001))
       ((memq fmt '(estimate)) (org-string-to-estimate s))
       (t (string-to-number s)))))

(defun org-columns-uncompile-format (cfmt)
  "Turn the compiled columns format back into a string representation."
  (let ((rtn "") e s prop title op op-match width fmt printf fun calc)
    (while (setq e (pop cfmt))
      (setq prop (car e)
	    title (nth 1 e)
	    width (nth 2 e)
	    op (nth 3 e)
	    fmt (nth 4 e)
	    printf (nth 5 e)
	    fun (nth 6 e)
	    calc (nth 7 e))
      (when (setq op-match (rassoc (list fmt fun calc) org-columns-compile-map))
	(setq op (car op-match)))
      (if (and op printf) (setq op (concat op ";" printf)))
      (if (equal title prop) (setq title nil))
      (setq s (concat "%" (if width (number-to-string width))
		      prop
		      (if title (concat "(" title ")"))
		      (if op (concat "{" op "}"))))
      (setq rtn (concat rtn " " s)))
    (org-trim rtn)))

(defun org-columns-compile-format (fmt)
  "Turn a column format string into an alist of specifications.
The alist has one entry for each column in the format.  The elements of
that list are:
property     the property
title        the title field for the columns
width        the column width in characters, can be nil for automatic
operator     the operator if any
format       the output format for computed results, derived from operator
printf       a printf format for computed values
fun          the lisp function to compute summary values, derived from operator
calc         function to get values from base elements"
  (let ((start 0) width prop title op op-match f printf fun calc)
    (setq org-columns-current-fmt-compiled nil)
    (while (string-match
	    (org-re "%\\([0-9]+\\)?\\([[:alnum:]_-]+\\)\\(?:(\\([^)]+\\))\\)?\\(?:{\\([^}]+\\)}\\)?\\s-*")
	    fmt start)
      (setq start (match-end 0)
	    width (match-string 1 fmt)
	    prop (match-string 2 fmt)
	    title (or (match-string 3 fmt) prop)
	    op (match-string 4 fmt)
	    f nil
	    printf nil
	    fun '+
	    calc nil)
      (if width (setq width (string-to-number width)))
      (when (and op (string-match ";" op))
	(setq printf (substring op (match-end 0))
	      op (substring op 0 (match-beginning 0))))
      (when (setq op-match (assoc op org-columns-compile-map))
	(setq f (cadr op-match)
	      fun (caddr op-match)
	      calc (cadddr op-match)))
      (push (list prop title width op f printf fun calc)
	    org-columns-current-fmt-compiled))
    (setq org-columns-current-fmt-compiled
	  (nreverse org-columns-current-fmt-compiled))))


;;; Dynamic block for Column view

(defvar org-heading-regexp) ; defined in org.el
(defvar org-heading-keyword-regexp-format) ; defined in org.el
(defun org-columns-capture-view (&optional maxlevel skip-empty-rows)
  "Get the column view of the current buffer or subtree.
The first optional argument MAXLEVEL sets the level limit.  A
second optional argument SKIP-EMPTY-ROWS tells whether to skip
empty rows, an empty row being one where all the column view
specifiers except ITEM are empty.  This function returns a list
containing the title row and all other rows.  Each row is a list
of fields."
  (save-excursion
    (let* ((title (mapcar 'cadr org-columns-current-fmt-compiled))
	   (re-comment (format org-heading-keyword-regexp-format
			       org-comment-string))
	   (re-archive (concat ".*:" org-archive-tag ":"))
	   (n (length title)) row tbl)
      (goto-char (point-min))
      (while (re-search-forward org-heading-regexp nil t)
	(catch 'next
	  (when (and (or (null maxlevel)
			 (>= maxlevel
			     (if org-odd-levels-only
				 (/ (1+ (length (match-string 1))) 2)
			       (length (match-string 1)))))
		     (get-char-property (match-beginning 0) 'org-columns-key))
	    (when (save-excursion
		    (goto-char (point-at-bol))
		    (or (looking-at re-comment)
			(looking-at re-archive)))
	      (org-end-of-subtree t)
	      (throw 'next t))
	    (setq row nil)
	    (loop for i from 0 to (1- n) do
		  (push
		   (org-quote-vert
		    (or (get-char-property (+ (match-beginning 0) i) 'org-columns-value-modified)
			(get-char-property (+ (match-beginning 0) i) 'org-columns-value)
			""))
		   row))
	    (setq row (nreverse row))
	    (unless (and skip-empty-rows
			 (eq 1 (length (delete "" (delete-dups (copy-sequence row))))))
	      (push row tbl)))))
      (append (list title 'hline) (nreverse tbl)))))

(defun org-dblock-write:columnview (params)
  "Write the column view table.
PARAMS is a property list of parameters:

:width    enforce same column widths with <N> specifiers.
:id       the :ID: property of the entry where the columns view
	  should be built.  When the symbol `local', call locally.
	  When `global' call column view with the cursor at the beginning
	  of the buffer (usually this means that the whole buffer switches
	  to column view).  When \"file:path/to/file.org\", invoke column
	  view at the start of that file.  Otherwise, the ID is located
	  using `org-id-find'.
:hlines   When t, insert a hline before each item.  When a number, insert
	  a hline before each level <= that number.
:vlines   When t, make each column a colgroup to enforce vertical lines.
:maxlevel When set to a number, don't capture headlines below this level.
:skip-empty-rows
	  When t, skip rows where all specifiers other than ITEM are empty."
  (let ((pos (move-marker (make-marker) (point)))
	(hlines (plist-get params :hlines))
	(vlines (plist-get params :vlines))
	(maxlevel (plist-get params :maxlevel))
	(content-lines (org-split-string (plist-get params :content) "\n"))
	(skip-empty-rows (plist-get params :skip-empty-rows))
	(case-fold-search t)
	tbl id idpos nfields tmp recalc line
	id-as-string view-file view-pos)
    (when (setq id (plist-get params :id))
      (setq id-as-string (cond ((numberp id) (number-to-string id))
			       ((symbolp id) (symbol-name id))
			       ((stringp id) id)
			       (t "")))
      (cond ((not id) nil)
	    ((eq id 'global) (setq view-pos (point-min)))
	    ((eq id 'local))
	    ((string-match "^file:\\(.*\\)" id-as-string)
	     (setq view-file (match-string 1 id-as-string)
		   view-pos 1)
	     (unless (file-exists-p view-file)
	       (error "No such file: \"%s\"" id-as-string)))
	    ((setq idpos (org-find-entry-with-id id))
	     (setq view-pos idpos))
	    ((setq idpos (org-id-find id))
	     (setq view-file (car idpos))
	     (setq view-pos (cdr idpos)))
	    (t (error "Cannot find entry with :ID: %s" id))))
    (with-current-buffer (if view-file
			     (get-file-buffer view-file)
			   (current-buffer))
      (save-excursion
	(save-restriction
	  (widen)
	  (goto-char (or view-pos (point)))
	  (org-columns)
	  (setq tbl (org-columns-capture-view maxlevel skip-empty-rows))
	  (setq nfields (length (car tbl)))
	  (org-columns-quit))))
    (goto-char pos)
    (move-marker pos nil)
    (when tbl
      (when (plist-get params :hlines)
	(setq tmp nil)
	(while tbl
	  (if (eq (car tbl) 'hline)
	      (push (pop tbl) tmp)
	    (if (string-match "\\` *\\(\\*+\\)" (caar tbl))
		(if (and (not (eq (car tmp) 'hline))
			 (or (eq hlines t)
			     (and (numberp hlines)
				  (<= (- (match-end 1) (match-beginning 1))
				      hlines))))
		    (push 'hline tmp)))
	    (push (pop tbl) tmp)))
	(setq tbl (nreverse tmp)))
      (when vlines
	(setq tbl (mapcar (lambda (x)
			    (if (eq 'hline x) x (cons "" x)))
			  tbl))
	(setq tbl (append tbl (list (cons "/" (make-list nfields "<>"))))))
      (setq pos (point))
      (when content-lines
	(while (string-match "^#" (car content-lines))
	  (insert (pop content-lines) "\n")))
      (insert (org-listtable-to-string tbl))
      (when (plist-get params :width)
	(insert "\n|" (mapconcat (lambda (x) (format "<%d>" (max 3 x)))
				 org-columns-current-widths "|")))
      (while (setq line (pop content-lines))
	(when (string-match "^#" line)
	  (insert "\n" line)
	  (when (string-match "^[ \t]*#\\+tblfm" line)
	    (setq recalc t))))
      (if recalc
	  (progn (goto-char pos) (org-table-recalculate 'all))
	(goto-char pos)
	(org-table-align)))))

(defun org-listtable-to-string (tbl)
  "Convert a listtable TBL to a string that contains the Org-mode table.
The table still need to be aligned.  The resulting string has no leading
and tailing newline characters."
  (mapconcat
   (lambda (x)
     (cond
      ((listp x)
       (concat "|" (mapconcat 'identity x "|") "|"))
      ((eq x 'hline) "|-|")
      (t (error "Garbage in listtable: %s" x))))
   tbl "\n"))

(defun org-insert-columns-dblock ()
  "Create a dynamic block capturing a column view table."
  (interactive)
  (let ((defaults '(:name "columnview" :hlines 1))
	(id (org-icompleting-read
	     "Capture columns (local, global, entry with :ID: property) [local]: "
	     (append '(("global") ("local"))
		     (mapcar 'list (org-property-values "ID"))))))
    (if (equal id "") (setq id 'local))
    (if (equal id "global") (setq id 'global))
    (setq defaults (append defaults (list :id id)))
    (org-create-dblock defaults)
    (org-update-dblock)))

;;; Column view in the agenda

(defvar org-agenda-view-columns-initially nil
  "When set, switch to columns view immediately after creating the agenda.")

(defvar org-agenda-columns-show-summaries) ; defined in org-agenda.el
(defvar org-agenda-columns-compute-summary-properties); defined in org-agenda.el
(defvar org-agenda-columns-add-appointments-to-effort-sum); as well

(defun org-agenda-columns ()
  "Turn on or update column view in the agenda."
  (interactive)
  (org-verify-version 'columns)
  (org-columns-remove-overlays)
  (move-marker org-columns-begin-marker (point))
  (let ((org-columns-time (time-to-number-of-days (current-time)))
	 cache maxwidths m p a d fmt)
    (cond
     ((and (boundp 'org-agenda-overriding-columns-format)
	   org-agenda-overriding-columns-format)
      (setq fmt org-agenda-overriding-columns-format)
      (org-set-local 'org-agenda-overriding-columns-format fmt))
     ((setq m (org-get-at-bol 'org-hd-marker))
      (setq fmt (or (org-entry-get m "COLUMNS" t)
		    (with-current-buffer (marker-buffer m)
		      org-columns-default-format))))
     ((and (boundp 'org-columns-current-fmt)
	   (local-variable-p 'org-columns-current-fmt)
	   org-columns-current-fmt)
      (setq fmt org-columns-current-fmt))
     ((setq m (next-single-property-change (point-min) 'org-hd-marker))
      (setq m (get-text-property m 'org-hd-marker))
      (setq fmt (or (org-entry-get m "COLUMNS" t)
		    (with-current-buffer (marker-buffer m)
		      org-columns-default-format)))))
    (setq fmt (or fmt org-columns-default-format))
    (org-set-local 'org-columns-current-fmt fmt)
    (org-columns-compile-format fmt)
    (when org-agenda-columns-compute-summary-properties
      (org-agenda-colview-compute org-columns-current-fmt-compiled))
    (save-excursion
      ;; Get and cache the properties
      (goto-char (point-min))
      (while (not (eobp))
	(when (setq m (or (org-get-at-bol 'org-hd-marker)
			  (org-get-at-bol 'org-marker)))
	  (setq p (org-entry-properties m))

	  (when (or (not (setq a (assoc org-effort-property p)))
			 (not (string-match "\\S-" (or (cdr a) ""))))
	    ;; OK, the property is not defined.  Use appointment duration?
	    (when (and org-agenda-columns-add-appointments-to-effort-sum
		       (setq d (get-text-property (point) 'duration)))
	      (setq d (org-minutes-to-hh:mm-string d))
	      (put-text-property 0 (length d) 'face 'org-warning d)
	      (push (cons org-effort-property d) p)))
	  (push (cons (org-current-line) p) cache))
	(beginning-of-line 2))
      (when cache
	(setq maxwidths (org-columns-get-autowidth-alist fmt cache))
	(org-set-local 'org-columns-current-maxwidths maxwidths)
	(org-columns-display-here-title)
	(when (org-set-local 'org-columns-flyspell-was-active
			     (org-bound-and-true-p flyspell-mode))
	  (flyspell-mode 0))
	(mapc (lambda (x)
		(org-goto-line (car x))
		(org-columns-display-here (cdr x)))
	      cache)
	(when org-agenda-columns-show-summaries
	  (org-agenda-colview-summarize cache))))))

(defun org-agenda-colview-summarize (cache)
  "Summarize the summarizable columns in column view in the agenda.
This will add overlays to the date lines, to show the summary for each day."
  (let* ((fmt (mapcar (lambda (x)
			(if (equal (car x) "CLOCKSUM")
			    (list "CLOCKSUM" (nth 1 x) (nth 2 x) ":" 'add_times
				  nil '+ nil)
			  x))
		      org-columns-current-fmt-compiled))
	 line c c1 stype calc sumfunc props lsum entries prop v title)
    (catch 'exit
      (when (delq nil (mapcar 'cadr fmt))
	;; OK, at least one summation column, it makes sense to try this
	(goto-char (point-max))
	(while t
	  (when (or (get-text-property (point) 'org-date-line)
		    (eq (get-text-property (point) 'face)
			'org-agenda-structure))
	    ;; OK, this is a date line that should be used
	    (setq line (org-current-line))
	    (setq entries nil c cache cache nil)
	    (while (setq c1 (pop c))
	      (if (> (car c1) line)
		  (push c1 entries)
		(push c1 cache)))
	    ;; now ENTRIES are the ones we want to use, CACHE is the rest
	    ;; Compute the summaries for the properties we want,
	    ;; set nil properties for the rest.
	    (when (setq entries (mapcar 'cdr entries))
	      (setq props
		    (mapcar
		     (lambda (f)
		       (setq prop (car f)
			     title (nth 1 f)
			     stype (nth 4 f)
			     sumfunc (nth 6 f)
			     calc (or (nth 7 f) 'identity))
		       (cond
			((equal prop "ITEM")
			 (cons prop (buffer-substring (point-at-bol)
						      (point-at-eol))))
			((not stype) (cons prop ""))
			(t ;; do the summary
			 (setq lsum nil)
			 (dolist (x entries)
			   (setq v (cdr (assoc prop x)))
			   (if v
			       (push
				(funcall
				 (if (not (get-text-property 0 'org-computed v))
				     calc
				   'identity)
				 (org-columns-string-to-number
				  v stype))
				lsum)))
			 (setq lsum (remove nil lsum))
			 (setq lsum
			       (cond ((> (length lsum) 1)
				      (org-columns-number-to-string
				       (apply sumfunc lsum) stype))
				     ((eq (length lsum) 1)
				      (org-columns-number-to-string
				       (car lsum) stype))
				     (t "")))
			 (put-text-property 0 (length lsum) 'face 'bold lsum)
			 (unless (eq calc 'identity)
			   (put-text-property 0 (length lsum) 'org-computed t lsum))
			 (cons prop lsum))))
		     fmt))
	      (org-columns-display-here props 'dateline)
	      (org-set-local 'org-agenda-columns-active t)))
	  (if (bobp) (throw 'exit t))
	  (beginning-of-line 0))))))

(defun org-agenda-colview-compute (fmt)
  "Compute the relevant columns in the contributing source buffers."
  (let ((files org-agenda-contributing-files)
	(org-columns-begin-marker (make-marker))
	(org-columns-top-level-marker (make-marker))
	f fm a b)
    (while (setq f (pop files))
      (setq b (find-buffer-visiting f))
      (with-current-buffer (or (buffer-base-buffer b) b)
	(save-excursion
	  (save-restriction
	    (widen)
	    (org-unmodified
	     (remove-text-properties (point-min) (point-max)
				     '(org-summaries t)))
	    (goto-char (point-min))
	    (org-columns-get-format-and-top-level)
	    (while (setq fm (pop fmt))
	      (if (equal (car fm) "CLOCKSUM")
		  (org-clock-sum)
		(when (and (nth 4 fm)
			   (setq a (assoc (car fm)
					  org-columns-current-fmt-compiled))
			   (equal (nth 4 a) (nth 4 fm)))
		  (org-columns-compute (car fm)))))))))))

(defun org-format-time-period (interval)
  "Convert time in fractional days to days/hours/minutes/seconds."
  (if (numberp interval)
    (let* ((days (floor interval))
	   (frac-hours (* 24 (- interval days)))
	   (hours (floor frac-hours))
	   (minutes (floor (* 60 (- frac-hours hours))))
	   (seconds (floor (* 60 (- (* 60 (- frac-hours hours)) minutes)))))
      (format "%dd %02dh %02dm %02ds" days hours minutes seconds))
    ""))

(defun org-estimate-mean-and-var (v)
  "Return the mean and variance of an estimate."
  (let* ((low (float (car v)))
         (high (float (cadr v)))
         (mean (/ (+ low high) 2.0))
         (var (/ (+ (expt (- mean low) 2.0) (expt (- high mean) 2.0)) 2.0)))
    (list  mean var)))

(defun org-estimate-combine (&rest el)
  "Combine a list of estimates, using mean and variance.
The mean and variance of the result will be the sum of the means
and variances (respectively) of the individual estimates."
  (let ((mean 0)
        (var 0))
    (mapc (lambda (e)
              (let ((stats (org-estimate-mean-and-var e)))
                (setq mean (+ mean (car stats)))
                (setq var (+ var (cadr stats)))))
            el)
    (let ((stdev (sqrt var)))
      (list (- mean stdev) (+ mean stdev)))))

(defun org-estimate-print (e &optional fmt)
  "Prepare a string representation of an estimate.
This formats these numbers as two numbers with a \"-\" between them."
  (if (null fmt) (set 'fmt "%.0f"))
  (format "%s" (mapconcat (lambda (n) (format fmt n))  e "-")))

(defun org-string-to-estimate (s)
  "Convert a string to an estimate.
The string should be two numbers joined with a \"-\"."
  (if (string-match "\\(.*\\)-\\(.*\\)" s)
      (list (string-to-number (match-string 1 s))
	    (string-to-number(match-string 2 s)))
    (list (string-to-number s) (string-to-number s))))

(provide 'org-colview)

;;; org-colview.el ends here

debug log:

solving c7b5d45 ...
found c7b5d45 in https://list.orgmode.org/orgmode/80k40wzh8n.fsf@gmail.com/ ||
	https://list.orgmode.org/orgmode/808vhcla1h.fsf@gmail.com/
found 5409701 in https://git.savannah.gnu.org/cgit/emacs/org-mode.git
preparing index
index prepared:
100644 54097015c6b56079f53e70eb95e6e0aaba189a81	lisp/org-colview.el

applying [1/1] https://list.orgmode.org/orgmode/80k40wzh8n.fsf@gmail.com/
diff --git a/lisp/org-colview.el b/lisp/org-colview.el
index 5409701..c7b5d45 100644

Checking patch lisp/org-colview.el...
Applied patch lisp/org-colview.el cleanly.

skipping https://list.orgmode.org/orgmode/808vhcla1h.fsf@gmail.com/ for c7b5d45
index at:
100644 c7b5d4521f47836dc4f77de6584dcafa581ff63d	lisp/org-colview.el

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

Code repositories for project(s) associated with this public inbox

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

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).