lisp/org-list.el

   1 ;;; org-list.el --- Plain lists 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 ;;         Bastien Guerry <bzg AT altern DOT org>
   7 ;; Keywords: outlines, hypermedia, calendar, wp
   8 ;; Homepage: http://orgmode.org
   9 ;; Version: 6.15f
  10 ;;
  11 ;; This file is part of GNU Emacs.
  12 ;;
  13 ;; GNU Emacs is free software: you can redistribute it and/or modify
  14 ;; it under the terms of the GNU General Public License as published by
  15 ;; the Free Software Foundation, either version 3 of the License, or
  16 ;; (at your option) any later version.
  17
  18 ;; GNU Emacs is distributed in the hope that it will be useful,
  19 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21 ;; GNU General Public License for more details.
  22
  23 ;; You should have received a copy of the GNU General Public License
  24 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  25 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  26 ;;
  27 ;;; Commentary:
  28
  29 ;; This file contains the code dealing with plain lists in Org-mode.
  30
  31 ;;; Code:
  32
  33 (require 'org-macs)
  34 (require 'org-compat)
  35
  36 (defvar org-blank-before-new-entry)
  37 (defvar org-M-RET-may-split-line)
  38
  39 (declare-function org-invisible-p "org" ())
  40 (declare-function org-on-heading-p "org" (&optional invisible-ok))
  41 (declare-function outline-next-heading "outline" ())
  42 (declare-function outline-back-to-heading "outline" (&optional invisible-ok))
  43 (declare-function org-back-to-heading "org" (&optional invisible-ok))
  44 (declare-function org-back-over-empty-lines "org" ())
  45 (declare-function org-skip-whitespace "org" ())
  46 (declare-function org-trim "org" (s))
  47 (declare-function org-get-indentation "org" (&optional line))
  48 (declare-function org-timer-item "org-timer" (&optional arg))
  49
  50 (defgroup org-plain-lists nil
  51   "Options concerning plain lists in Org-mode."
  52   :tag "Org Plain lists"
  53   :group 'org-structure)
  54
  55 (defcustom org-cycle-include-plain-lists nil
  56   "Non-nil means, include plain lists into visibility cycling.
  57 This means that during cycling, plain list items will *temporarily* be
  58 interpreted as outline headlines with a level given by 1000+i where i is the
  59 indentation of the bullet.  In all other operations, plain list items are
  60 not seen as headlines.  For example, you cannot assign a TODO keyword to
  61 such an item."
  62   :group 'org-plain-lists
  63   :type 'boolean)
  64
  65 (defcustom org-plain-list-ordered-item-terminator t
  66   "The character that makes a line with leading number an ordered list item.
  67 Valid values are ?. and ?\).  To get both terminators, use t.  While
  68 ?. may look nicer, it creates the danger that a line with leading
  69 number may be incorrectly interpreted as an item.  ?\) therefore is
  70 the safe choice."
  71   :group 'org-plain-lists
  72   :type '(choice (const :tag "dot like in \"2.\"" ?.)
  73                  (const :tag "paren like in \"2)\"" ?\))
  74                  (const :tab "both" t)))
  75
  76 (defcustom org-list-two-spaces-after-bullet-regexp nil
  77   "A regular expression matching bullets that should have 2 spaces after them.
  78 When nil, no bullet will have two spaces after them.
  79 When a string, it will be used as a regular expression.  When the bullet
  80 type of a list is changed, the new bullet type will be matched against this
  81 regexp.  If it matches, there will be two spaces instead of one after
  82 the bullet in each item of he list."
  83   :group 'org-plain-list
  84   :type '(choice
  85           (const :tag "never" nil)
  86           (regexp)))
  87
  88 (defcustom org-empty-line-terminates-plain-lists nil
  89   "Non-nil means, an empty line ends all plain list levels.
  90 When nil, empty lines are part of the preceeding item."
  91   :group 'org-plain-lists
  92   :type 'boolean)
  93
  94 (defcustom org-auto-renumber-ordered-lists t
  95   "Non-nil means, automatically renumber ordered plain lists.
  96 Renumbering happens when the sequence have been changed with
  97 \\[org-shiftmetaup] or \\[org-shiftmetadown].  After other editing commands,
  98 use \\[org-ctrl-c-ctrl-c] to trigger renumbering."
  99   :group 'org-plain-lists
 100   :type 'boolean)
 101
 102 (defcustom org-provide-checkbox-statistics t
 103   "Non-nil means, update checkbox statistics after insert and toggle.
 104 When this is set, checkbox statistics is updated each time you either insert
 105 a new checkbox with \\[org-insert-todo-heading] or toggle a checkbox
 106 with \\[org-ctrl-c-ctrl-c\\]."
 107   :group 'org-plain-lists
 108   :type 'boolean)
 109
 110 (defcustom org-description-max-indent 20
 111   "Maximum indentation for the second line of a description list.
 112 When the indentation would be larger than this, it will become
 113 5 characters instead."
 114   :group 'org-plain-lists
 115   :type 'integer)
 116
 117 (defvar org-list-beginning-re
 118   "^\\([ \t]*\\)\\([-+*]\\|[0-9]+[.)]\\) +\\(.*\\)$")
 119
 120 (defcustom org-list-radio-list-templates
 121   '((latex-mode "% BEGIN RECEIVE ORGLST %n
 122 % END RECEIVE ORGLST %n
 123 \\begin{comment}
 124 #+ORGLST: SEND %n org-list-to-latex
 125 | | |
 126 \\end{comment}\n")
 127     (texinfo-mode "@c BEGIN RECEIVE ORGLST %n
 128 @c END RECEIVE ORGLST %n
 129 @ignore
 130 #+ORGLST: SEND %n org-list-to-texinfo
 131 | | |
 132 @end ignore\n")
 133     (html-mode "<!-- BEGIN RECEIVE ORGLST %n -->
 134 <!-- END RECEIVE ORGLST %n -->
 135 <!--
 136 #+ORGLST: SEND %n org-list-to-html
 137 | | |
 138 -->\n"))
 139   "Templates for radio lists in different major modes.
 140 All occurrences of %n in a template will be replaced with the name of the
 141 list, obtained by prompting the user."
 142   :group 'org-plain-lists
 143   :type '(repeat
 144           (list (symbol :tag "Major mode")
 145                 (string :tag "Format"))))
 146
 147 ;;;; Plain list items, including checkboxes
 148
 149 ;;; Plain list items
 150
 151 (defun org-at-item-p ()
 152   "Is point in a line starting a hand-formatted item?"
 153   (let ((llt org-plain-list-ordered-item-terminator))
 154     (save-excursion
 155       (goto-char (point-at-bol))
 156       (looking-at
 157        (cond
 158         ((eq llt t)  "\\([ \t]*\\([-+]\\|\\([0-9]+[.)]\\)\\)\\|[ \t]+\\*\\)\\( \\|$\\)")
 159         ((= llt ?.)  "\\([ \t]*\\([-+]\\|\\([0-9]+\\.\\)\\)\\|[ \t]+\\*\\)\\( \\|$\\)")
 160         ((= llt ?\)) "\\([ \t]*\\([-+]\\|\\([0-9]+))\\)\\|[ \t]+\\*\\)\\( \\|$\\)")
 161         (t (error "Invalid value of `org-plain-list-ordered-item-terminator'")))))))
 162
 163 (defun org-in-item-p ()
 164   "It the cursor inside a plain list item.
 165 Does not have to be the first line."
 166   (save-excursion
 167     (condition-case nil
 168         (progn
 169           (org-beginning-of-item)
 170           (org-at-item-p)
 171           t)
 172       (error nil))))
 173
 174 (defun org-insert-item (&optional checkbox)
 175   "Insert a new item at the current level.
 176 Return t when things worked, nil when we are not in an item."
 177   (when (save-excursion
 178           (condition-case nil
 179               (progn
 180                 (org-beginning-of-item)
 181                 (org-at-item-p)
 182                 (if (org-invisible-p) (error "Invisible item"))
 183                 t)
 184             (error nil)))
 185     (let* ((bul (match-string 0))
 186            (descp (save-excursion (goto-char (match-beginning 0))
 187                                   (beginning-of-line 1)
 188                                   (save-match-data
 189                                     (and (looking-at "[ \t]*\\(.*?\\) ::")
 190                                          (match-string 1)))))
 191            (timerp (and descp
 192                         (save-match-data
 193                           (string-match "^[-+*][ \t]+[0-9]+:[0-9]+:[0-9]+$"
 194                                         descp))))
 195            (eow (save-excursion (beginning-of-line 1) (looking-at "[ \t]*")
 196                                 (match-end 0)))
 197            (blank (cdr (assq 'plain-list-item org-blank-before-new-entry)))
 198            pos)
 199       (if descp (setq checkbox nil))
 200       (if timerp
 201           (progn (org-timer-item) t)
 202         (cond
 203          ((and (org-at-item-p) (<= (point) eow))
 204           ;; before the bullet
 205           (beginning-of-line 1)
 206           (open-line (if blank 2 1)))
 207          ((<= (point) eow)
 208           (beginning-of-line 1))
 209          (t
 210           (unless (org-get-alist-option org-M-RET-may-split-line 'item)
 211             (end-of-line 1)
 212             (delete-horizontal-space))
 213           (newline (if blank 2 1))))
 214         (insert bul
 215                 (if checkbox "[ ]" "")
 216                 (if descp (concat (if checkbox " " "")
 217                                   (read-string "Term: ") " :: ") ""))
 218         (just-one-space)
 219         (setq pos (point))
 220         (end-of-line 1)
 221         (unless (= (point) pos) (just-one-space) (backward-delete-char 1)))
 222       (org-maybe-renumber-ordered-list)
 223       (and checkbox (org-update-checkbox-count-maybe))
 224       t)))
 225
 226 ;;; Checkboxes
 227
 228 (defun org-at-item-checkbox-p ()
 229   "Is point at a line starting a plain-list item with a checklet?"
 230   (and (org-at-item-p)
 231        (save-excursion
 232          (goto-char (match-end 0))
 233          (skip-chars-forward " \t")
 234          (looking-at "\\[[- X]\\]"))))
 235
 236 (defun org-toggle-checkbox (&optional arg)
 237   "Toggle the checkbox in the current line."
 238   (interactive "P")
 239   (catch 'exit
 240     (let (beg end status (firstnew 'unknown))
 241       (cond
 242        ((org-region-active-p)
 243         (setq beg (region-beginning) end (region-end)))
 244        ((org-on-heading-p)
 245         (setq beg (point) end (save-excursion (outline-next-heading) (point))))
 246        ((org-at-item-checkbox-p)
 247         (let ((pos (point)))
 248           (replace-match
 249            (cond (arg "[-]")
 250                  ((member (match-string 0) '("[ ]" "[-]")) "[X]")
 251                  (t "[ ]"))
 252            t t)
 253           (goto-char pos))
 254         (throw 'exit t))
 255        (t (error "Not at a checkbox or heading, and no active region")))
 256       (save-excursion
 257         (goto-char beg)
 258         (while (< (point) end)
 259           (when (org-at-item-checkbox-p)
 260             (setq status (equal (match-string 0) "[X]"))
 261             (when (eq firstnew 'unknown)
 262               (setq firstnew (not status)))
 263             (replace-match
 264              (if (if arg (not status) firstnew) "[X]" "[ ]") t t))
 265           (beginning-of-line 2)))))
 266   (org-update-checkbox-count-maybe))
 267
 268 (defun org-update-checkbox-count-maybe ()
 269   "Update checkbox statistics unless turned off by user."
 270   (when org-provide-checkbox-statistics
 271     (org-update-checkbox-count)))
 272
 273 (defun org-update-checkbox-count (&optional all)
 274  "Update the checkbox statistics in the current section.
 275 This will find all statistic cookies like [57%] and [6/12] and update them
 276 with the current numbers.  With optional prefix argument ALL, do this for
 277 the whole buffer."
 278  (interactive "P")
 279  (save-excursion
 280    (let* ((buffer-invisibility-spec (org-inhibit-invisibility)) ; Emacs 21
 281           (beg (condition-case nil
 282                    (progn (org-back-to-heading) (point))
 283                  (error (point-min))))
 284           (end (move-marker (make-marker)
 285                             (progn (outline-next-heading) (point))))
 286           (re "\\(\\(\\[[0-9]*%\\]\\)\\|\\(\\[[0-9]*/[0-9]*\\]\\)\\)")
 287           (re-box "^[ \t]*\\([-+*]\\|[0-9]+[.)]\\) +\\(\\[[- X]\\]\\)")
 288           (re-find (concat re "\\|" re-box))
 289           beg-cookie end-cookie is-percent c-on c-off lim
 290           eline curr-ind next-ind continue-from startsearch
 291           (cstat 0)
 292           )
 293      (when all
 294        (goto-char (point-min))
 295        (outline-next-heading)
 296        (setq beg (point) end (point-max)))
 297      (goto-char end)
 298      ;; find each statistic cookie
 299      (while (re-search-backward re-find beg t)
 300        (setq beg-cookie (match-beginning 1)
 301              end-cookie (match-end 1)
 302              cstat (+ cstat (if end-cookie 1 0))
 303              startsearch (point-at-eol)
 304              continue-from (point-at-bol)
 305              is-percent (match-beginning 2)
 306              lim (cond
 307                   ((org-on-heading-p) (outline-next-heading) (point))
 308                   ((org-at-item-p) (org-end-of-item) (point))
 309                   (t nil))
 310              c-on 0
 311              c-off 0)
 312        (when lim
 313          ;; find first checkbox for this cookie and gather
 314          ;; statistics from all that are at this indentation level
 315          (goto-char startsearch)
 316          (if (re-search-forward re-box lim t)
 317              (progn
 318                (org-beginning-of-item)
 319                (setq curr-ind (org-get-indentation))
 320                (setq next-ind curr-ind)
 321                (while (and (bolp) (org-at-item-p) (= curr-ind next-ind))
 322                  (save-excursion (end-of-line) (setq eline (point)))
 323                  (if (re-search-forward re-box eline t)
 324                      (if (member (match-string 2) '("[ ]" "[-]"))
 325                          (setq c-off (1+ c-off))
 326                        (setq c-on (1+ c-on))
 327                        )
 328                    )
 329                  (org-end-of-item)
 330                  (setq next-ind (org-get-indentation))
 331                  )))
 332          (goto-char continue-from)
 333          ;; update cookie
 334          (when end-cookie
 335            (delete-region beg-cookie end-cookie)
 336            (goto-char beg-cookie)
 337            (insert
 338             (if is-percent
 339                 (format "[%d%%]" (/ (* 100 c-on) (max 1 (+ c-on c-off))))
 340               (format "[%d/%d]" c-on (+ c-on c-off)))))
 341          ;; update items checkbox if it has one
 342          (when (org-at-item-p)
 343            (org-beginning-of-item)
 344            (when (and (> (+ c-on c-off) 0)
 345                       (re-search-forward re-box (point-at-eol) t))
 346              (setq beg-cookie (match-beginning 2)
 347                    end-cookie (match-end       2))
 348              (delete-region beg-cookie end-cookie)
 349              (goto-char beg-cookie)
 350              (cond ((= c-off 0) (insert "[X]"))
 351                    ((= c-on  0) (insert "[ ]"))
 352                    (t           (insert "[-]")))
 353              )))
 354        (goto-char continue-from))
 355      (when (interactive-p)
 356        (message "Checkbox statistics updated %s (%d places)"
 357                 (if all "in entire file" "in current outline entry") cstat)))))
 358
 359 (defun org-get-checkbox-statistics-face ()
 360   "Select the face for checkbox statistics.
 361 The face will be `org-done' when all relevant boxes are checked.  Otherwise
 362 it will be `org-todo'."
 363   (if (match-end 1)
 364       (if (equal (match-string 1) "100%") 'org-done 'org-todo)
 365     (if (and (> (match-end 2) (match-beginning 2))
 366              (equal (match-string 2) (match-string 3)))
 367         'org-done
 368       'org-todo)))
 369
 370 (defun org-beginning-of-item ()
 371   "Go to the beginning of the current hand-formatted item.
 372 If the cursor is not in an item, throw an error."
 373   (interactive)
 374   (let ((pos (point))
 375         (limit (save-excursion
 376                  (condition-case nil
 377                      (progn
 378                        (org-back-to-heading)
 379                        (beginning-of-line 2) (point))
 380                    (error (point-min)))))
 381         (ind-empty (if org-empty-line-terminates-plain-lists 0 10000))
 382         ind ind1)
 383     (if (org-at-item-p)
 384         (beginning-of-line 1)
 385       (beginning-of-line 1)
 386       (skip-chars-forward " \t")
 387       (setq ind (current-column))
 388       (if (catch 'exit
 389             (while t
 390               (beginning-of-line 0)
 391               (if (or (bobp) (< (point) limit)) (throw 'exit nil))
 392
 393               (if (looking-at "[ \t]*$")
 394                   (setq ind1 ind-empty)
 395                 (skip-chars-forward " \t")
 396                 (setq ind1 (current-column)))
 397               (if (< ind1 ind)
 398                   (progn (beginning-of-line 1) (throw 'exit (org-at-item-p))))))
 399           nil
 400         (goto-char pos)
 401         (error "Not in an item")))))
 402
 403 (defun org-end-of-item ()
 404   "Go to the end of the current hand-formatted item.
 405 If the cursor is not in an item, throw an error."
 406   (interactive)
 407   (let* ((pos (point))
 408          ind1
 409          (ind-empty (if org-empty-line-terminates-plain-lists 0 10000))
 410          (limit (save-excursion (outline-next-heading) (point)))
 411          (ind (save-excursion
 412                 (org-beginning-of-item)
 413                 (skip-chars-forward " \t")
 414                 (current-column)))
 415          (end (catch 'exit
 416                 (while t
 417                   (beginning-of-line 2)
 418                   (if (eobp) (throw 'exit (point)))
 419                   (if (>= (point) limit) (throw 'exit (point-at-bol)))
 420                   (if (looking-at "[ \t]*$")
 421                       (setq ind1 ind-empty)
 422                     (skip-chars-forward " \t")
 423                     (setq ind1 (current-column)))
 424                   (if (<= ind1 ind)
 425                       (throw 'exit (point-at-bol)))))))
 426     (if end
 427         (goto-char end)
 428       (goto-char pos)
 429       (error "Not in an item"))))
 430
 431 (defun org-next-item ()
 432   "Move to the beginning of the next item in the current plain list.
 433 Error if not at a plain list, or if this is the last item in the list."
 434   (interactive)
 435   (let (ind ind1 (pos (point)))
 436     (org-beginning-of-item)
 437     (setq ind (org-get-indentation))
 438     (org-end-of-item)
 439     (setq ind1 (org-get-indentation))
 440     (unless (and (org-at-item-p) (= ind ind1))
 441       (goto-char pos)
 442       (error "On last item"))))
 443
 444 (defun org-previous-item ()
 445   "Move to the beginning of the previous item in the current plain list.
 446 Error if not at a plain list, or if this is the first item in the list."
 447   (interactive)
 448   (let (beg ind ind1 (pos (point)))
 449     (org-beginning-of-item)
 450     (setq beg (point))
 451     (setq ind (org-get-indentation))
 452     (goto-char beg)
 453     (catch 'exit
 454       (while t
 455         (beginning-of-line 0)
 456         (if (looking-at "[ \t]*$")
 457             nil
 458           (if (<= (setq ind1 (org-get-indentation)) ind)
 459               (throw 'exit t)))))
 460     (condition-case nil
 461         (if (or (not (org-at-item-p))
 462                 (< ind1 (1- ind)))
 463             (error "")
 464           (org-beginning-of-item))
 465       (error (goto-char pos)
 466              (error "On first item")))))
 467
 468 (defun org-first-list-item-p ()
 469   "Is this heading the item in a plain list?"
 470   (unless (org-at-item-p)
 471     (error "Not at a plain list item"))
 472   (org-beginning-of-item)
 473   (= (point) (save-excursion (org-beginning-of-item-list))))
 474
 475 (defun org-move-item-down ()
 476   "Move the plain list item at point down, i.e. swap with following item.
 477 Subitems (items with larger indentation) are considered part of the item,
 478 so this really moves item trees."
 479   (interactive)
 480   (let ((col (current-column))
 481         (pos (point))
 482         beg beg0 end end0 ind ind1  txt ne-end ne-beg)
 483     (org-beginning-of-item)
 484     (setq beg0 (point))
 485     (save-excursion
 486       (setq ne-beg (org-back-over-empty-lines))
 487       (setq beg (point)))
 488     (goto-char beg0)
 489     (setq ind (org-get-indentation))
 490     (org-end-of-item)
 491     (setq end0 (point))
 492     (setq ind1 (org-get-indentation))
 493     (setq ne-end (org-back-over-empty-lines))
 494     (setq end (point))
 495     (goto-char beg0)
 496     (when (and (org-first-list-item-p) (< ne-end ne-beg))
 497       ;; include less whitespace
 498       (save-excursion
 499         (goto-char beg)
 500         (forward-line (- ne-beg ne-end))
 501         (setq beg (point))))
 502     (goto-char end0)
 503     (if (and (org-at-item-p) (= ind ind1))
 504         (progn
 505           (org-end-of-item)
 506           (org-back-over-empty-lines)
 507           (setq txt (buffer-substring beg end))
 508           (save-excursion
 509             (delete-region beg end))
 510           (setq pos (point))
 511           (insert txt)
 512           (goto-char pos) (org-skip-whitespace)
 513           (org-maybe-renumber-ordered-list)
 514           (move-to-column col))
 515       (goto-char pos)
 516       (move-to-column col)
 517       (error "Cannot move this item further down"))))
 518
 519 (defun org-move-item-up (arg)
 520   "Move the plain list item at point up, i.e. swap with previous item.
 521 Subitems (items with larger indentation) are considered part of the item,
 522 so this really moves item trees."
 523   (interactive "p")
 524   (let ((col (current-column)) (pos (point))
 525         beg beg0 end ind ind1  txt
 526         ne-beg ne-ins ins-end)
 527     (org-beginning-of-item)
 528     (setq beg0 (point))
 529     (setq ind (org-get-indentation))
 530     (save-excursion
 531       (setq ne-beg (org-back-over-empty-lines))
 532       (setq beg (point)))
 533     (goto-char beg0)
 534     (org-end-of-item)
 535     (org-back-over-empty-lines)
 536     (setq end (point))
 537     (goto-char beg0)
 538     (catch 'exit
 539       (while t
 540         (beginning-of-line 0)
 541         (if (looking-at "[ \t]*$")
 542             (if org-empty-line-terminates-plain-lists
 543                 (progn
 544                   (goto-char pos)
 545                   (error "Cannot move this item further up"))
 546               nil)
 547           (if (<= (setq ind1 (org-get-indentation)) ind)
 548               (throw 'exit t)))))
 549     (condition-case nil
 550         (org-beginning-of-item)
 551       (error (goto-char beg0)
 552              (move-to-column col)
 553              (error "Cannot move this item further up")))
 554     (setq ind1 (org-get-indentation))
 555     (if (and (org-at-item-p) (= ind ind1))
 556         (progn
 557           (setq ne-ins (org-back-over-empty-lines))
 558           (setq txt (buffer-substring beg end))
 559           (save-excursion
 560             (delete-region beg end))
 561           (setq pos (point))
 562           (insert txt)
 563           (setq ins-end (point))
 564           (goto-char pos) (org-skip-whitespace)
 565
 566           (when (and (org-first-list-item-p) (> ne-ins ne-beg))
 567             ;; Move whitespace back to beginning
 568             (save-excursion
 569               (goto-char ins-end)
 570               (let ((kill-whole-line t))
 571                 (kill-line (- ne-ins ne-beg)) (point)))
 572             (insert (make-string (- ne-ins ne-beg) ?\n)))
 573
 574           (org-maybe-renumber-ordered-list)
 575           (move-to-column col))
 576       (goto-char pos)
 577       (move-to-column col)
 578       (error "Cannot move this item further up"))))
 579
 580 (defun org-maybe-renumber-ordered-list ()
 581   "Renumber the ordered list at point if setup allows it.
 582 This tests the user option `org-auto-renumber-ordered-lists' before
 583 doing the renumbering."
 584   (interactive)
 585   (when (and org-auto-renumber-ordered-lists
 586              (org-at-item-p))
 587     (if (match-beginning 3)
 588         (org-renumber-ordered-list 1)
 589       (org-fix-bullet-type))))
 590
 591 (defun org-maybe-renumber-ordered-list-safe ()
 592   (condition-case nil
 593       (save-excursion
 594         (org-maybe-renumber-ordered-list))
 595     (error nil)))
 596
 597 (defun org-cycle-list-bullet (&optional which)
 598   "Cycle through the different itemize/enumerate bullets.
 599 This cycle the entire list level through the sequence:
 600
 601    `-'  ->  `+'  ->  `*'  ->  `1.'  ->  `1)'
 602
 603 If WHICH is a string, use that as the new bullet.  If WHICH is an integer,
 604 0 means `-', 1 means `+' etc."
 605   (interactive "P")
 606   (org-preserve-lc
 607    (org-beginning-of-item-list)
 608    (org-at-item-p)
 609    (beginning-of-line 1)
 610    (let ((current (match-string 0))
 611          (prevp (eq which 'previous))
 612          new old)
 613      (setq new (cond
 614                 ((and (numberp which)
 615                       (nth (1- which) '("-" "+" "*" "1." "1)"))))
 616                 ((string-match "-" current) (if prevp "1)" "+"))
 617                 ((string-match "\\+" current)
 618                  (if prevp "-" (if (looking-at "\\S-") "1." "*")))
 619                 ((string-match "\\*" current) (if prevp "+" "1."))
 620                 ((string-match "\\." current)
 621                  (if prevp (if (looking-at "\\S-") "+" "*") "1)"))
 622                 ((string-match ")" current) (if prevp "1." "-"))
 623                 (t (error "This should not happen"))))
 624      (and (looking-at "\\([ \t]*\\)\\(\\S-+\\)")
 625           (setq old (match-string 2))
 626           (replace-match (concat "\\1" new)))
 627      (org-shift-item-indentation (- (length new) (length old)))
 628      (org-fix-bullet-type)
 629      (org-maybe-renumber-ordered-list))))
 630
 631 (defun org-get-string-indentation (s)
 632   "What indentation has S due to SPACE and TAB at the beginning of the string?"
 633   (let ((n -1) (i 0) (w tab-width) c)
 634     (catch 'exit
 635       (while (< (setq n (1+ n)) (length s))
 636         (setq c (aref s n))
 637         (cond ((= c ?\ ) (setq i (1+ i)))
 638               ((= c ?\t) (setq i (* (/ (+ w i) w) w)))
 639               (t (throw 'exit t)))))
 640     i))
 641
 642 (defun org-renumber-ordered-list (arg)
 643   "Renumber an ordered plain list.
 644 Cursor needs to be in the first line of an item, the line that starts
 645 with something like \"1.\" or \"2)\"."
 646   (interactive "p")
 647   (unless (and (org-at-item-p)
 648                (match-beginning 3))
 649     (error "This is not an ordered list"))
 650   (let ((line (org-current-line))
 651         (col (current-column))
 652         (ind (org-get-string-indentation
 653               (buffer-substring (point-at-bol) (match-beginning 3))))
 654         ;; (term (substring (match-string 3) -1))
 655         ind1 (n (1- arg))
 656         fmt bobp old new)
 657     ;; find where this list begins
 658     (org-beginning-of-item-list)
 659     (setq bobp (bobp))
 660     (looking-at "[ \t]*[0-9]+\\([.)]\\)")
 661     (setq fmt (concat "%d" (match-string 1)))
 662     (beginning-of-line 0)
 663     ;; walk forward and replace these numbers
 664     (catch 'exit
 665       (while t
 666         (catch 'next
 667           (if bobp (setq bobp nil) (beginning-of-line 2))
 668           (if (eobp) (throw 'exit nil))
 669           (if (looking-at "[ \t]*$") (throw 'next nil))
 670           (skip-chars-forward " \t") (setq ind1 (current-column))
 671           (if (> ind1 ind) (throw 'next t))
 672           (if (< ind1 ind) (throw 'exit t))
 673           (if (not (org-at-item-p)) (throw 'exit nil))
 674           (setq old (match-string 2))
 675           (delete-region (match-beginning 2) (match-end 2))
 676           (goto-char (match-beginning 2))
 677           (insert (setq new (format fmt (setq n (1+ n)))))
 678           (org-shift-item-indentation (- (length new) (length old))))))
 679     (goto-line line)
 680     (org-move-to-column col)))
 681
 682 (defun org-fix-bullet-type ()
 683   "Make sure all items in this list have the same bullet as the first item.
 684 Also, fix the indentation."
 685   (interactive)
 686   (unless (org-at-item-p) (error "This is not a list"))
 687   (let ((line (org-current-line))
 688         (col (current-column))
 689         (ind (current-indentation))
 690         ind1 bullet oldbullet)
 691     ;; find where this list begins
 692     (org-beginning-of-item-list)
 693     (beginning-of-line 1)
 694     ;; find out what the bullet type is
 695     (looking-at "[ \t]*\\(\\S-+\\)")
 696     (setq bullet (concat (match-string 1) " "))
 697     (if (and org-list-two-spaces-after-bullet-regexp
 698              (string-match org-list-two-spaces-after-bullet-regexp bullet))
 699         (setq bullet (concat bullet " ")))
 700     ;; walk forward and replace these numbers
 701     (beginning-of-line 0)
 702     (catch 'exit
 703       (while t
 704         (catch 'next
 705           (beginning-of-line 2)
 706           (if (eobp) (throw 'exit nil))
 707           (if (looking-at "[ \t]*$") (throw 'next nil))
 708           (skip-chars-forward " \t") (setq ind1 (current-column))
 709           (if (> ind1 ind) (throw 'next t))
 710           (if (< ind1 ind) (throw 'exit t))
 711           (if (not (org-at-item-p)) (throw 'exit nil))
 712           (skip-chars-forward " \t")
 713           (looking-at "\\S-+ *")
 714           (setq oldbullet (match-string 0))
 715           (replace-match bullet)
 716           (org-shift-item-indentation (- (length bullet) (length oldbullet))))))
 717     (goto-line line)
 718     (org-move-to-column col)
 719     (if (string-match "[0-9]" bullet)
 720         (org-renumber-ordered-list 1))))
 721
 722 (defun org-shift-item-indentation (delta)
 723   "Shift the indentation in current item by DELTA."
 724   (save-excursion
 725     (let ((beg (point-at-bol))
 726           (end (progn (org-end-of-item) (point)))
 727           i)
 728       (goto-char end)
 729       (beginning-of-line 0)
 730       (while (> (point) beg)
 731         (when (looking-at "[ \t]*\\S-")
 732           ;; this is not an empty line
 733           (setq i (org-get-indentation))
 734           (if (and (> i 0) (> (setq i (+ i delta)) 0))
 735               (indent-line-to i)))
 736         (beginning-of-line 0)))))
 737
 738 (defun org-beginning-of-item-list ()
 739   "Go to the beginning of the current item list.
 740 I.e. to the first item in this list."
 741   (interactive)
 742   (org-beginning-of-item)
 743   (let ((pos (point-at-bol))
 744         (ind (org-get-indentation))
 745         ind1)
 746     ;; find where this list begins
 747     (catch 'exit
 748       (while t
 749         (catch 'next
 750           (beginning-of-line 0)
 751           (if (looking-at "[ \t]*$")
 752               (throw (if (bobp) 'exit 'next) t))
 753           (skip-chars-forward " \t") (setq ind1 (current-column))
 754           (if (or (< ind1 ind)
 755                   (and (= ind1 ind)
 756                        (not (org-at-item-p)))
 757                   (and (= (point-at-bol) (point-min))
 758                        (setq pos (point-min))))
 759               (throw 'exit t)
 760             (when (org-at-item-p) (setq pos (point-at-bol)))))))
 761     (goto-char pos)))
 762
 763
 764 (defun org-end-of-item-list ()
 765   "Go to the end of the current item list.
 766 I.e. to the text after the last item."
 767   (interactive)
 768   (org-beginning-of-item)
 769   (let ((pos (point-at-bol))
 770         (ind (org-get-indentation))
 771         ind1)
 772     ;; find where this list begins
 773     (catch 'exit
 774       (while t
 775         (catch 'next
 776           (beginning-of-line 2)
 777           (if (looking-at "[ \t]*$")
 778               (throw (if (eobp) 'exit 'next) t))
 779           (skip-chars-forward " \t") (setq ind1 (current-column))
 780           (if (or (< ind1 ind)
 781                   (and (= ind1 ind)
 782                        (not (org-at-item-p)))
 783                   (eobp))
 784               (progn
 785                 (setq pos (point-at-bol))
 786                 (throw 'exit t))))))
 787     (goto-char pos)))
 788
 789
 790 (defvar org-last-indent-begin-marker (make-marker))
 791 (defvar org-last-indent-end-marker (make-marker))
 792
 793 (defun org-outdent-item (arg)
 794   "Outdent a local list item."
 795   (interactive "p")
 796   (org-indent-item (- arg)))
 797
 798 (defun org-indent-item (arg)
 799   "Indent a local list item."
 800   (interactive "p")
 801   (unless (org-at-item-p)
 802     (error "Not on an item"))
 803   (save-excursion
 804     (let (beg end ind ind1 tmp delta ind-down ind-up)
 805       (if (memq last-command '(org-shiftmetaright org-shiftmetaleft))
 806           (setq beg org-last-indent-begin-marker
 807                 end org-last-indent-end-marker)
 808         (org-beginning-of-item)
 809         (setq beg (move-marker org-last-indent-begin-marker (point)))
 810         (org-end-of-item)
 811         (setq end (move-marker org-last-indent-end-marker (point))))
 812       (goto-char beg)
 813       (setq tmp (org-item-indent-positions)
 814             ind (car tmp)
 815             ind-down (nth 2 tmp)
 816             ind-up (nth 1 tmp)
 817             delta (if (> arg 0)
 818                       (if ind-down (- ind-down ind) 2)
 819                     (if ind-up (- ind-up ind) -2)))
 820       (if (< (+ delta ind) 0) (error "Cannot outdent beyond margin"))
 821       (while (< (point) end)
 822         (beginning-of-line 1)
 823         (skip-chars-forward " \t") (setq ind1 (current-column))
 824         (delete-region (point-at-bol) (point))
 825         (or (eolp) (org-indent-to-column (+ ind1 delta)))
 826         (beginning-of-line 2))))
 827   (org-fix-bullet-type)
 828   (org-maybe-renumber-ordered-list-safe)
 829   (save-excursion
 830     (beginning-of-line 0)
 831     (condition-case nil (org-beginning-of-item) (error nil))
 832     (org-maybe-renumber-ordered-list-safe)))
 833
 834 (defun org-item-indent-positions ()
 835   "Return indentation for plain list items.
 836 This returns a list with three values:  The current indentation, the
 837 parent indentation and the indentation a child should have.
 838 Assumes cursor in item line."
 839   (let* ((bolpos (point-at-bol))
 840          (ind (org-get-indentation))
 841          ind-down ind-up pos)
 842     (save-excursion
 843       (org-beginning-of-item-list)
 844       (skip-chars-backward "\n\r \t")
 845       (when (org-in-item-p)
 846         (org-beginning-of-item)
 847         (setq ind-up (org-get-indentation))))
 848     (setq pos (point))
 849     (save-excursion
 850       (cond
 851        ((and (condition-case nil (progn (org-previous-item) t)
 852                (error nil))
 853              (or (forward-char 1) t)
 854              (re-search-forward "^\\([ \t]*\\([-+]\\|\\([0-9]+[.)]\\)\\)\\|[ \t]+\\*\\)\\( \\|$\\)" bolpos t))
 855         (setq ind-down (org-get-indentation)))
 856        ((and (goto-char pos)
 857              (org-at-item-p))
 858         (goto-char (match-end 0))
 859         (skip-chars-forward " \t")
 860         (setq ind-down (current-column)))))
 861     (list ind ind-up ind-down)))
 862
 863
 864 ;;; Send and receive lists
 865
 866 (defun org-list-parse-list (&optional delete)
 867   "Parse the list at point and maybe DELETE it.
 868 Return a list containing first level items as strings and
 869 sublevels as a list of strings."
 870   (let* ((item-beginning (org-list-item-beginning))
 871          (start (car item-beginning))
 872          (end (org-list-end (cdr item-beginning)))
 873          output itemsep ltype)
 874     (while (re-search-forward org-list-beginning-re end t)
 875       (goto-char (match-beginning 3))
 876       (save-match-data
 877         (cond ((string-match "[0-9]" (match-string 2))
 878                (setq itemsep "[0-9]+\\(?:\\.\\|)\\)"
 879                      ltype 'ordered))
 880               ((string-match "^.*::" (match-string 0))
 881                (setq itemsep "[-+]" ltype 'descriptive))
 882               (t (setq itemsep "[-+]" ltype 'unordered))))
 883       (let* ((indent1 (match-string 1))
 884              (nextitem (save-excursion
 885                          (save-match-data
 886                            (or (and (re-search-forward
 887                                      (concat "^" indent1 itemsep " *?") end t)
 888                                     (match-beginning 0)) end))))
 889              (item (buffer-substring
 890                     (point)
 891                     (or (and (re-search-forward
 892                               org-list-beginning-re end t)
 893                              (goto-char (match-beginning 0)))
 894                         (goto-char end))))
 895              (nextindent (match-string 1))
 896              (item (org-trim item))
 897              (item (if (string-match "^\\[.+\\]" item)
 898                        (replace-match "\\\\texttt{\\&}"
 899                                       t nil item) item)))
 900         (push item output)
 901         (when (> (length nextindent)
 902                  (length indent1))
 903           (narrow-to-region (point) nextitem)
 904           (push (org-list-parse-list) output)
 905           (widen))))
 906     (when delete (delete-region start end))
 907     (setq output (nreverse output))
 908     (push ltype output)))
 909
 910 (defun org-list-item-beginning ()
 911   "Find the beginning of the list item.
 912 Return a cons which car is the beginning position of the item and
 913 cdr is the indentation string."
 914   (save-excursion
 915     (if (not (or (looking-at org-list-beginning-re)
 916                  (re-search-backward
 917                   org-list-beginning-re nil t)))
 918         (progn (goto-char (point-min)) (point))
 919       (cons (match-beginning 0) (match-string 1)))))
 920
 921 (defun org-list-end (indent)
 922   "Return the position of the end of the list.
 923 INDENT is the indentation of the list."
 924   (save-excursion
 925     (catch 'exit
 926       (while (or (looking-at org-list-beginning-re)
 927                  (looking-at (concat "^" indent "[ \t]+\\|^$")))
 928         (if (eq (point) (point-max))
 929             (throw 'exit (point-max)))
 930         (forward-line 1))) (point)))
 931
 932 (defun org-list-insert-radio-list ()
 933   "Insert a radio list template appropriate for this major mode."
 934   (interactive)
 935   (let* ((e (assq major-mode org-list-radio-list-templates))
 936          (txt (nth 1 e))
 937          name pos)
 938     (unless e (error "No radio list setup defined for %s" major-mode))
 939     (setq name (read-string "List name: "))
 940     (while (string-match "%n" txt)
 941       (setq txt (replace-match name t t txt)))
 942     (or (bolp) (insert "\n"))
 943     (setq pos (point))
 944     (insert txt)
 945     (goto-char pos)))
 946
 947 (defun org-list-send-list (&optional maybe)
 948   "Send a tranformed version of this list to the receiver position.
 949 With argument MAYBE, fail quietly if no transformation is defined for
 950 this list."
 951   (interactive)
 952   (catch 'exit
 953     (unless (org-at-item-p) (error "Not at a list"))
 954     (save-excursion
 955       (goto-char (car (org-list-item-beginning)))
 956       (beginning-of-line 0)
 957       (unless (looking-at "#\\+ORGLST: *SEND +\\([a-zA-Z0-9_]+\\) +\\([^ \t\r\n]+\\)\\( +.*\\)?")
 958         (if maybe
 959             (throw 'exit nil)
 960           (error "Don't know how to transform this list"))))
 961     (let* ((name (match-string 1))
 962            (item-beginning (org-list-item-beginning))
 963            (transform (intern (match-string 2)))
 964            (txt (buffer-substring-no-properties
 965                  (car item-beginning)
 966                  (org-list-end (cdr item-beginning))))
 967            (list (org-list-parse-list))
 968            beg)
 969       (unless (fboundp transform)
 970         (error "No such transformation function %s" transform))
 971       (setq txt (funcall transform list))
 972       ;; Find the insertion place
 973       (save-excursion
 974         (goto-char (point-min))
 975         (unless (re-search-forward
 976                  (concat "BEGIN RECEIVE ORGLST +" name "\\([ \t]\\|$\\)") nil t)
 977           (error "Don't know where to insert translated list"))
 978         (goto-char (match-beginning 0))
 979         (beginning-of-line 2)
 980         (setq beg (point))
 981         (unless (re-search-forward (concat "END RECEIVE ORGLST +" name) nil t)
 982           (error "Cannot find end of insertion region"))
 983         (beginning-of-line 1)
 984         (delete-region beg (point))
 985         (goto-char beg)
 986         (insert txt "\n"))
 987       (message "List converted and installed at receiver location"))))
 988
 989 (defun org-list-to-generic (list params)
 990   "Convert a LIST parsed through `org-list-parse-list' to other formats.
 991
 992 Valid parameters PARAMS are
 993
 994 :ustart     String to start an unordered list
 995 :uend       String to end an unordered list
 996
 997 :ostart     String to start an ordered list
 998 :oend       String to end an ordered list
 999
1000 :dstart     String to start a descriptive list
1001 :dend       String to end a descriptive list
1002 :dtstart    String to start a descriptive term
1003 :dtend      String to end a descriptive term
1004 :ddstart    String to start a description
1005 :ddend      String to end a description
1006
1007 :splice     When set to t, return only list body lines, don't wrap
1008             them into :[u/o]start and :[u/o]end.  Default is nil.
1009
1010 :istart     String to start a list item
1011 :iend       String to end a list item
1012 :isep       String to separate items
1013 :lsep       String to separate sublists"
1014   (interactive)
1015   (let* ((p params) sublist
1016          (splicep (plist-get p :splice))
1017          (ostart  (plist-get p :ostart))
1018          (oend  (plist-get p :oend))
1019          (ustart  (plist-get p :ustart))
1020          (uend  (plist-get p :uend))
1021          (dstart  (plist-get p :dstart))
1022          (dend  (plist-get p :dend))
1023          (dtstart  (plist-get p :dtstart))
1024          (dtend  (plist-get p :dtend))
1025          (ddstart  (plist-get p :ddstart))
1026          (ddend  (plist-get p :ddend))
1027          (istart  (plist-get p :istart))
1028          (iend  (plist-get p :iend))
1029          (isep  (plist-get p :isep))
1030          (lsep  (plist-get p :lsep)))
1031     (let ((wrapper
1032            (cond ((eq (car list) 'ordered)
1033                   (concat ostart "\n%s" oend "\n"))
1034                  ((eq (car list) 'unordered)
1035                   (concat ustart "\n%s" uend "\n"))
1036                  ((eq (car list) 'descriptive)
1037                   (concat dstart "\n%s" dend "\n"))))
1038           rtn term defstart defend)
1039       (while (setq sublist (pop list))
1040         (cond ((symbolp sublist) nil)
1041               ((stringp sublist)
1042                (when (string-match "^\\(.*\\) ::" sublist)
1043                  (setq term (org-trim (format (concat dtstart "%s" dtend)
1044                                               (match-string 1 sublist))))
1045                  (setq sublist (substring sublist (1+ (length term)))))
1046                (setq rtn (concat rtn istart term ddstart
1047                                  sublist ddend iend isep)))
1048               (t (setq rtn (concat rtn   ;; previous list
1049                                    lsep  ;; list separator
1050                                    (org-list-to-generic sublist p)
1051                                    lsep  ;; list separator
1052                                    )))))
1053       (format wrapper rtn))))
1054
1055 (defun org-list-to-latex (list)
1056   "Convert LIST into a LaTeX list."
1057   (org-list-to-generic
1058    list '(:splicep nil :ostart "\\begin{enumerate}" :oend "\\end{enumerate}"
1059                        :ustart "\\begin{itemize}" :uend "\\end{itemize}"
1060                        :dstart "\\begin{description}" :dend "\\end{description}"
1061                        :dtstart "[" :dtend "]"
1062                        :ddstart "" :ddend ""
1063                        :istart "\\item " :iend ""
1064                        :isep "\n" :lsep "\n")))
1065
1066 (defun org-list-to-html (list)
1067   "Convert LIST into a HTML list."
1068   (org-list-to-generic
1069    list '(:splicep nil :ostart "<ol>" :oend "</ol>"
1070                        :ustart "<ul>" :uend "</ul>"
1071                        :dstart "<dl>" :dend "</dl>"
1072                        :dtstart "<dt>" :dtend "</dt>"
1073                        :ddstart "<dd>" :ddend "</dd>"
1074                        :istart "<li>" :iend "</li>"
1075                        :isep "\n" :lsep "\n")))
1076
1077 (defun org-list-to-texinfo (list)
1078   "Convert LIST into a Texinfo list."
1079   (org-list-to-generic
1080    list '(:splicep nil :ostart "@itemize @minus" :oend "@end itemize"
1081                        :ustart "@enumerate" :uend "@end enumerate"
1082                        :dstart "@table" :dend "@end table"
1083                        :dtstart "@item " :dtend "\n"
1084                        :ddstart "" :ddend ""
1085                        :istart "@item\n" :iend ""
1086                        :isep "\n" :lsep "\n")))
1087
1088 (provide 'org-list)
1089
1090 ;; arch-tag: 73cf50c1-200f-4d1d-8a53-4e842a5b11c8
1091 ;;; org-list.el ends here