lisp/org-ascii.el

   1 ;;; org-ascii.el --- ASCII export for Org-mode
   2
   3 ;; Copyright (C) 2004-2011 Free Software Foundation, Inc.
   4
   5 ;; Author: Carsten Dominik <carsten at orgmode dot org>
   6 ;; Keywords: outlines, hypermedia, calendar, wp
   7 ;; Homepage: http://orgmode.org
   8 ;;
   9 ;; This file is part of GNU Emacs.
  10 ;;
  11 ;; GNU Emacs is free software: you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation, either version 3 of the License, or
  14 ;; (at your option) any later version.
  15
  16 ;; GNU Emacs is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  23 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  24 ;;
  25 ;;; Commentary:
  26
  27 ;;; Code:
  28
  29 (require 'org-exp)
  30
  31 (eval-when-compile
  32   (require 'cl))
  33
  34 (defgroup org-export-ascii nil
  35   "Options specific for ASCII export of Org-mode files."
  36   :tag "Org Export ASCII"
  37   :group 'org-export)
  38
  39 (defcustom org-export-ascii-underline '(?\- ?\= ?\~ ?^ ?\# ?\$)
  40   "Characters for underlining headings in ASCII export.
  41 In the given sequence, these characters will be used for level 1, 2, ..."
  42   :group 'org-export-ascii
  43   :type '(repeat character))
  44
  45 (defcustom org-export-ascii-bullets '(?* ?+ ?-)
  46   "Bullet characters for headlines converted to lists in ASCII export.
  47 The first character is used for the first lest level generated in this
  48 way, and so on.  If there are more levels than characters given here,
  49 the list will be repeated.
  50 Note that plain lists will keep the same bullets as the have in the
  51 Org-mode file."
  52   :group 'org-export-ascii
  53   :type '(repeat character))
  54
  55 (defcustom org-export-ascii-links-to-notes t
  56   "Non-nil means convert links to notes before the next headline.
  57 When nil, the link will be exported in place.  If the line becomes long
  58 in this way, it will be wrapped."
  59   :group 'org-export-ascii
  60   :type 'boolean)
  61
  62 (defcustom org-export-ascii-table-keep-all-vertical-lines nil
  63   "Non-nil means keep all vertical lines in ASCII tables.
  64 When nil, vertical lines will be removed except for those needed
  65 for column grouping."
  66   :group 'org-export-ascii
  67   :type 'boolean)
  68
  69 (defcustom org-export-ascii-table-widen-columns t
  70   "Non-nil means widen narrowed columns for export.
  71 When nil, narrowed columns will look in ASCII export just like in org-mode,
  72 i.e. with \"=>\" as ellipsis."
  73   :group 'org-export-ascii
  74   :type 'boolean)
  75
  76 (defvar org-export-ascii-entities 'ascii
  77   "The ascii representation to be used during ascii export.
  78 Possible values are:
  79
  80 ascii     Only use plain ASCII characters
  81 latin1    Include Latin-1 character
  82 utf8      Use all UTF-8 characters")
  83
  84 ;;; Hooks
  85
  86 (defvar org-export-ascii-final-hook nil
  87   "Hook run at the end of ASCII export, in the new buffer.")
  88
  89 ;;; ASCII export
  90
  91 (defvar org-ascii-current-indentation nil) ; For communication
  92
  93 ;;;###autoload
  94 (defun org-export-as-latin1 (&rest args)
  95   "Like `org-export-as-ascii', use latin1 encoding for special symbols."
  96   (interactive)
  97   (org-export-as-encoding 'org-export-as-ascii (org-called-interactively-p 'any)
  98                           'latin1 args))
  99
 100 ;;;###autoload
 101 (defun org-export-as-latin1-to-buffer (&rest args)
 102   "Like `org-export-as-ascii-to-buffer', use latin1 encoding for symbols."
 103   (interactive)
 104   (org-export-as-encoding 'org-export-as-ascii-to-buffer
 105                           (org-called-interactively-p 'any) 'latin1 args))
 106
 107 ;;;###autoload
 108 (defun org-export-as-utf8 (&rest args)
 109   "Like `org-export-as-ascii', use encoding for special symbols."
 110   (interactive)
 111   (org-export-as-encoding 'org-export-as-ascii
 112                           (org-called-interactively-p 'any)
 113                           'utf8 args))
 114
 115 ;;;###autoload
 116 (defun org-export-as-utf8-to-buffer (&rest args)
 117   "Like `org-export-as-ascii-to-buffer', use utf8 encoding for symbols."
 118   (interactive)
 119   (org-export-as-encoding 'org-export-as-ascii-to-buffer
 120                           (org-called-interactively-p 'any) 'utf8 args))
 121
 122 (defun org-export-as-encoding (command interactivep encoding &rest args)
 123   (let ((org-export-ascii-entities encoding))
 124     (if interactivep
 125         (call-interactively command)
 126       (apply command args))))
 127
 128
 129 ;;;###autoload
 130 (defun org-export-as-ascii-to-buffer (arg)
 131   "Call `org-export-as-ascii` with output to a temporary buffer.
 132 No file is created.  The prefix ARG is passed through to `org-export-as-ascii'."
 133   (interactive "P")
 134   (org-export-as-ascii arg nil nil "*Org ASCII Export*")
 135   (when org-export-show-temporary-export-buffer
 136     (switch-to-buffer-other-window "*Org ASCII Export*")))
 137
 138 ;;;###autoload
 139 (defun org-replace-region-by-ascii (beg end)
 140   "Assume the current region has org-mode syntax, and convert it to plain ASCII.
 141 This can be used in any buffer.  For example, you could write an
 142 itemized list in org-mode syntax in a Mail buffer and then use this
 143 command to convert it."
 144   (interactive "r")
 145   (let (reg ascii buf pop-up-frames)
 146     (save-window-excursion
 147       (if (eq major-mode 'org-mode)
 148           (setq ascii (org-export-region-as-ascii
 149                       beg end t 'string))
 150         (setq reg (buffer-substring beg end)
 151               buf (get-buffer-create "*Org tmp*"))
 152         (with-current-buffer buf
 153           (erase-buffer)
 154           (insert reg)
 155           (org-mode)
 156           (setq ascii (org-export-region-as-ascii
 157                       (point-min) (point-max) t 'string)))
 158         (kill-buffer buf)))
 159     (delete-region beg end)
 160     (insert ascii)))
 161
 162 ;;;###autoload
 163 (defun org-export-region-as-ascii (beg end &optional body-only buffer)
 164   "Convert region from BEG to END in org-mode buffer to plain ASCII.
 165 If prefix arg BODY-ONLY is set, omit file header, footer, and table of
 166 contents, and only produce the region of converted text, useful for
 167 cut-and-paste operations.
 168 If BUFFER is a buffer or a string, use/create that buffer as a target
 169 of the converted ASCII.  If BUFFER is the symbol `string', return the
 170 produced ASCII as a string and leave not buffer behind.  For example,
 171 a Lisp program could call this function in the following way:
 172
 173   (setq ascii (org-export-region-as-ascii beg end t 'string))
 174
 175 When called interactively, the output buffer is selected, and shown
 176 in a window.  A non-interactive call will only return the buffer."
 177   (interactive "r\nP")
 178   (when (org-called-interactively-p 'any)
 179     (setq buffer "*Org ASCII Export*"))
 180   (let ((transient-mark-mode t) (zmacs-regions t)
 181         ext-plist rtn)
 182     (setq ext-plist (plist-put ext-plist :ignore-subtree-p t))
 183     (goto-char end)
 184     (set-mark (point)) ;; to activate the region
 185     (goto-char beg)
 186     (setq rtn (org-export-as-ascii
 187                nil nil ext-plist
 188                buffer body-only))
 189     (if (fboundp 'deactivate-mark) (deactivate-mark))
 190     (if (and (org-called-interactively-p 'any) (bufferp rtn))
 191         (switch-to-buffer-other-window rtn)
 192       rtn)))
 193
 194 ;;;###autoload
 195 (defun org-export-as-ascii (arg &optional hidden ext-plist
 196                                to-buffer body-only pub-dir)
 197   "Export the outline as a pretty ASCII file.
 198 If there is an active region, export only the region.
 199 The prefix ARG specifies how many levels of the outline should become
 200 underlined headlines, default is 3.    Lower levels will become bulleted
 201 lists.  When HIDDEN is non-nil, don't display the ASCII buffer.
 202 EXT-PLIST is a property list with external parameters overriding
 203 org-mode's default settings, but still inferior to file-local
 204 settings.  When TO-BUFFER is non-nil, create a buffer with that
 205 name and export to that buffer.  If TO-BUFFER is the symbol
 206 `string', don't leave any buffer behind but just return the
 207 resulting ASCII as a string.  When BODY-ONLY is set, don't produce
 208 the file header and footer.  When PUB-DIR is set, use this as the
 209 publishing directory."
 210   (interactive "P")
 211   (run-hooks 'org-export-first-hook)
 212   (setq-default org-todo-line-regexp org-todo-line-regexp)
 213   (let* ((opt-plist (org-combine-plists (org-default-export-plist)
 214                                         ext-plist
 215                                         (org-infile-export-plist)))
 216          (region-p (org-region-active-p))
 217          (rbeg (and region-p (region-beginning)))
 218          (rend (and region-p (region-end)))
 219          (subtree-p
 220           (if (plist-get opt-plist :ignore-subtree-p)
 221               nil
 222             (when region-p
 223               (save-excursion
 224                 (goto-char rbeg)
 225                 (and (org-at-heading-p)
 226                      (>= (org-end-of-subtree t t) rend))))))
 227          (level-offset (if subtree-p
 228                            (save-excursion
 229                              (goto-char rbeg)
 230                              (+ (funcall outline-level)
 231                                 (if org-odd-levels-only 1 0)))
 232                          0))
 233          (opt-plist (setq org-export-opt-plist
 234                           (if subtree-p
 235                               (org-export-add-subtree-options opt-plist rbeg)
 236                             opt-plist)))
 237          ;; The following two are dynamically scoped into other
 238          ;; routines below.
 239          (org-current-export-dir
 240           (or pub-dir (org-export-directory :html opt-plist)))
 241          (org-current-export-file buffer-file-name)
 242          (custom-times org-display-custom-times)
 243          (org-ascii-current-indentation '(0 . 0))
 244          (level 0) line txt
 245          (umax nil)
 246          (umax-toc nil)
 247          (case-fold-search nil)
 248          (bfname (buffer-file-name (or (buffer-base-buffer) (current-buffer))))
 249          (filename (if to-buffer
 250                        nil
 251                      (concat (file-name-as-directory
 252                               (or pub-dir
 253                                   (org-export-directory :ascii opt-plist)))
 254                              (file-name-sans-extension
 255                               (or (and subtree-p
 256                                        (org-entry-get (region-beginning)
 257                                                       "EXPORT_FILE_NAME" t))
 258                                   (file-name-nondirectory bfname)))
 259                              ".txt")))
 260          (filename (and filename
 261                         (if (equal (file-truename filename)
 262                                    (file-truename bfname))
 263                             (concat filename ".txt")
 264                           filename)))
 265          (buffer (if to-buffer
 266                      (cond
 267                       ((eq to-buffer 'string)
 268                        (get-buffer-create "*Org ASCII Export*"))
 269                       (t (get-buffer-create to-buffer)))
 270                    (find-file-noselect filename)))
 271          (org-levels-open (make-vector org-level-max nil))
 272          (odd org-odd-levels-only)
 273          (date  (plist-get opt-plist :date))
 274          (author (plist-get opt-plist :author))
 275          (title (or (and subtree-p (org-export-get-title-from-subtree))
 276                     (plist-get opt-plist :title)
 277                     (and (not
 278                           (plist-get opt-plist :skip-before-1st-heading))
 279                          (org-export-grab-title-from-buffer))
 280                     (and (buffer-file-name)
 281                          (file-name-sans-extension
 282                           (file-name-nondirectory bfname)))
 283                     "UNTITLED"))
 284          (email (plist-get opt-plist :email))
 285          (language (plist-get opt-plist :language))
 286          (quote-re0 (concat "^\\(" org-quote-string "\\)\\( +\\|[ \t]*$\\)"))
 287          (todo nil)
 288          (lang-words nil)
 289          (region
 290           (buffer-substring
 291            (if (org-region-active-p) (region-beginning) (point-min))
 292            (if (org-region-active-p) (region-end) (point-max))))
 293          (org-export-footnotes-seen nil)
 294          (org-export-footnotes-data (org-footnote-all-labels 'with-defs))
 295          (lines (org-split-string
 296                  (org-export-preprocess-string
 297                   region
 298                   :for-backend 'ascii
 299                   :skip-before-1st-heading
 300                   (plist-get opt-plist :skip-before-1st-heading)
 301                   :drawers (plist-get opt-plist :drawers)
 302                   :tags (plist-get opt-plist :tags)
 303                   :priority (plist-get opt-plist :priority)
 304                   :footnotes (plist-get opt-plist :footnotes)
 305                   :timestamps (plist-get opt-plist :timestamps)
 306                   :todo-keywords (plist-get opt-plist :todo-keywords)
 307                   :tasks (plist-get opt-plist :tasks)
 308                   :verbatim-multiline t
 309                   :select-tags (plist-get opt-plist :select-tags)
 310                   :exclude-tags (plist-get opt-plist :exclude-tags)
 311                   :archived-trees
 312                   (plist-get opt-plist :archived-trees)
 313                   :add-text (plist-get opt-plist :text))
 314                  "\n"))
 315          thetoc have-headings first-heading-pos
 316          table-open table-buffer link-buffer link type path desc desc0 rpl wrap fnc)
 317     (let ((inhibit-read-only t))
 318       (org-unmodified
 319        (remove-text-properties (point-min) (point-max)
 320                                '(:org-license-to-kill t))))
 321
 322     (setq org-min-level (org-get-min-level lines level-offset))
 323     (setq org-last-level org-min-level)
 324     (org-init-section-numbers)
 325     (setq lang-words (or (assoc language org-export-language-setup)
 326                          (assoc "en" org-export-language-setup)))
 327     (set-buffer buffer)
 328     (erase-buffer)
 329     (fundamental-mode)
 330     (org-install-letbind)
 331     ;; create local variables for all options, to make sure all called
 332     ;; functions get the correct information
 333     (mapc (lambda (x)
 334             (set (make-local-variable (nth 2 x))
 335                  (plist-get opt-plist (car x))))
 336           org-export-plist-vars)
 337     (org-set-local 'org-odd-levels-only odd)
 338     (setq umax (if arg (prefix-numeric-value arg)
 339                  org-export-headline-levels))
 340     (setq umax-toc (if (integerp org-export-with-toc)
 341                        (min org-export-with-toc umax)
 342                      umax))
 343
 344     ;; File header
 345     (unless body-only
 346       (when (and title (not (string= "" title)))
 347         (org-insert-centered title ?=)
 348         (insert "\n"))
 349
 350       (if (and (or author email)
 351                org-export-author-info)
 352           (insert (concat (nth 1 lang-words) ": " (or author "")
 353                           (if (and org-export-email-info
 354                                    email (string-match "\\S-" email))
 355                               (concat " <" email ">") "")
 356                           "\n")))
 357
 358       (cond
 359        ((and date (string-match "%" date))
 360         (setq date (format-time-string date)))
 361        (date)
 362        (t (setq date (format-time-string "%Y-%m-%d %T %Z"))))
 363
 364       (if (and date org-export-time-stamp-file)
 365           (insert (concat (nth 2 lang-words) ": " date"\n")))
 366
 367       (unless (= (point) (point-min))
 368         (insert "\n\n")))
 369
 370     (if (and org-export-with-toc (not body-only))
 371         (progn
 372           (push (concat (nth 3 lang-words) "\n") thetoc)
 373           (push (concat (make-string (string-width (nth 3 lang-words)) ?=)
 374                         "\n") thetoc)
 375           (mapc #'(lambda (line)
 376                    (if (string-match org-todo-line-regexp
 377                                      line)
 378                        ;; This is a headline
 379                        (progn
 380                          (setq have-headings t)
 381                          (setq level (- (match-end 1) (match-beginning 1)
 382                                         level-offset)
 383                                level (org-tr-level level)
 384                                txt (match-string 3 line)
 385                                todo
 386                                (or (and org-export-mark-todo-in-toc
 387                                         (match-beginning 2)
 388                                         (not (member (match-string 2 line)
 389                                                      org-done-keywords)))
 390                                         ; TODO, not DONE
 391                                    (and org-export-mark-todo-in-toc
 392                                         (= level umax-toc)
 393                                         (org-search-todo-below
 394                                          line lines level))))
 395                          (setq txt (org-html-expand-for-ascii txt))
 396
 397                          (while (string-match org-bracket-link-regexp txt)
 398                            (setq txt
 399                                  (replace-match
 400                                   (match-string (if (match-end 2) 3 1) txt)
 401                                   t t txt)))
 402
 403                          (if (and (memq org-export-with-tags '(not-in-toc nil))
 404                                   (string-match
 405                                    (org-re "[ \t]+:[[:alnum:]_@#%:]+:[ \t]*$")
 406                                    txt))
 407                              (setq txt (replace-match "" t t txt)))
 408                          (if (string-match quote-re0 txt)
 409                              (setq txt (replace-match "" t t txt 1)))
 410
 411                          (if org-export-with-section-numbers
 412                              (setq txt (concat (org-section-number level)
 413                                                " " txt)))
 414                          (if (<= level umax-toc)
 415                              (progn
 416                                (push
 417                                 (concat
 418                                  (make-string
 419                                   (* (max 0 (- level org-min-level)) 4) ?\ )
 420                                  (format (if todo "%s (*)\n" "%s\n") txt))
 421                                 thetoc)
 422                                (setq org-last-level level))
 423                            ))))
 424                 lines)
 425           (setq thetoc (if have-headings (nreverse thetoc) nil))))
 426
 427     (org-init-section-numbers)
 428     (while (setq line (pop lines))
 429       (when (and link-buffer (string-match org-outline-regexp-bol line))
 430         (org-export-ascii-push-links (nreverse link-buffer))
 431         (setq link-buffer nil))
 432       (setq wrap nil)
 433       ;; Remove the quoted HTML tags.
 434       (setq line (org-html-expand-for-ascii line))
 435       ;; Replace links with the description when possible
 436       (while (string-match org-bracket-link-analytic-regexp++ line)
 437         (setq path (match-string 3 line)
 438               link (concat (match-string 1 line) path)
 439               type (match-string 2 line)
 440               desc0 (match-string 5 line)
 441               desc (or desc0 link))
 442         (if (and (> (length link) 8)
 443                  (equal (substring link 0 8) "coderef:"))
 444             (setq line (replace-match
 445                         (format (org-export-get-coderef-format (substring link 8) desc)
 446                                 (cdr (assoc
 447                                       (substring link 8)
 448                                       org-export-code-refs)))
 449                         t t line))
 450           (setq rpl (concat "[" desc "]"))
 451           (if (functionp (setq fnc (nth 2 (assoc type org-link-protocols))))
 452               (setq rpl (or (save-match-data
 453                               (funcall fnc (org-link-unescape path)
 454                                        desc0 'ascii))
 455                             rpl))
 456             (when (and desc0 (not (equal desc0 link)))
 457               (if org-export-ascii-links-to-notes
 458                   (push (cons desc0 link) link-buffer)
 459                 (setq rpl (concat rpl " (" link ")")
 460                       wrap (+ (length line) (- (length (match-string 0 line)))
 461                               (length desc))))))
 462           (setq line (replace-match rpl t t line))))
 463       (when custom-times
 464         (setq line (org-translate-time line)))
 465       (cond
 466        ((string-match "^\\(\\*+\\)[ \t]+\\(.*\\)" line)
 467         ;; a Headline
 468         (setq first-heading-pos (or first-heading-pos (point)))
 469         (setq level (org-tr-level (- (match-end 1) (match-beginning 1)
 470                                      level-offset))
 471               txt (match-string 2 line))
 472         (org-ascii-level-start level txt umax lines))
 473
 474        ((and org-export-with-tables
 475              (string-match "^\\([ \t]*\\)\\(|\\|\\+-+\\+\\)" line))
 476         (if (not table-open)
 477             ;; New table starts
 478             (setq table-open t table-buffer nil))
 479         ;; Accumulate lines
 480         (setq table-buffer (cons line table-buffer))
 481         (when (or (not lines)
 482                   (not (string-match "^\\([ \t]*\\)\\(|\\|\\+-+\\+\\)"
 483                                      (car lines))))
 484           (setq table-open nil
 485                 table-buffer (nreverse table-buffer))
 486           (insert (mapconcat
 487                    (lambda (x)
 488                      (org-fix-indentation x org-ascii-current-indentation))
 489                    (org-format-table-ascii table-buffer)
 490                    "\n") "\n")))
 491        (t
 492         (if (string-match "^\\([ \t]*\\)\\([-+*][ \t]+\\)\\(.*?\\)\\( ::\\)"
 493                           line)
 494             (setq line (replace-match "\\1\\3:" t nil line)))
 495         (setq line (org-fix-indentation line org-ascii-current-indentation))
 496         ;; Remove forced line breaks
 497         (if (string-match "\\\\\\\\[ \t]*$" line)
 498             (setq line (replace-match "" t t line)))
 499         (if (and org-export-with-fixed-width
 500                  (string-match "^\\([ \t]*\\)\\(:\\( \\|$\\)\\)" line))
 501             (setq line (replace-match "\\1" nil nil line))
 502           (if wrap (setq line (org-export-ascii-wrap line wrap))))
 503         (insert line "\n"))))
 504
 505     (org-export-ascii-push-links (nreverse link-buffer))
 506
 507     (normal-mode)
 508
 509     ;; insert the table of contents
 510     (when thetoc
 511       (goto-char (point-min))
 512       (if (re-search-forward "^[ \t]*\\[TABLE-OF-CONTENTS\\][ \t]*$" nil t)
 513           (progn
 514             (goto-char (match-beginning 0))
 515             (replace-match ""))
 516         (goto-char first-heading-pos))
 517       (mapc 'insert thetoc)
 518       (or (looking-at "[ \t]*\n[ \t]*\n")
 519           (insert "\n\n")))
 520
 521     ;; Convert whitespace place holders
 522     (goto-char (point-min))
 523     (let (beg end)
 524       (while (setq beg (next-single-property-change (point) 'org-whitespace))
 525         (setq end (next-single-property-change beg 'org-whitespace))
 526         (goto-char beg)
 527         (delete-region beg end)
 528         (insert (make-string (- end beg) ?\ ))))
 529
 530     ;; remove display and invisible chars
 531     (let (beg end)
 532       (goto-char (point-min))
 533       (while (setq beg (next-single-property-change (point) 'display))
 534         (setq end (next-single-property-change beg 'display))
 535         (delete-region beg end)
 536         (goto-char beg)
 537         (insert "=>"))
 538       (goto-char (point-min))
 539       (while (setq beg (next-single-property-change (point) 'org-cwidth))
 540         (setq end (next-single-property-change beg 'org-cwidth))
 541         (delete-region beg end)
 542         (goto-char beg)))
 543     (run-hooks 'org-export-ascii-final-hook)
 544     (or to-buffer (save-buffer))
 545     (goto-char (point-min))
 546     (or (org-export-push-to-kill-ring "ASCII")
 547         (message "Exporting... done"))
 548     ;; Return the buffer or a string, according to how this function was called
 549     (if (eq to-buffer 'string)
 550         (prog1 (buffer-substring (point-min) (point-max))
 551           (kill-buffer (current-buffer)))
 552       (current-buffer))))
 553
 554 (defun org-export-ascii-preprocess (parameters)
 555   "Do extra work for ASCII export."
 556   ;;
 557   ;; Realign tables to get rid of narrowing
 558   (when org-export-ascii-table-widen-columns
 559     (let ((org-table-do-narrow nil))
 560       (goto-char (point-min))
 561       (org-ascii-replace-entities)
 562       (goto-char (point-min))
 563       (org-table-map-tables
 564        (lambda () (org-if-unprotected (org-table-align)))
 565        'quietly)))
 566   ;; Put quotes around verbatim text
 567   (goto-char (point-min))
 568   (while (re-search-forward org-verbatim-re nil t)
 569     (org-if-unprotected-at (match-beginning 4)
 570       (goto-char (match-end 2))
 571       (backward-delete-char 1) (insert "'")
 572       (goto-char (match-beginning 2))
 573       (delete-char 1) (insert "`")
 574       (goto-char (match-end 2))))
 575   ;; Remove target markers
 576   (goto-char (point-min))
 577   (while (re-search-forward  "<<<?\\([^<>]*\\)>>>?\\([ \t]*\\)" nil t)
 578     (org-if-unprotected-at (match-beginning 1)
 579       (replace-match "\\1\\2")))
 580   ;; Remove list start counters
 581   (goto-char (point-min))
 582   (while (org-list-search-forward
 583           "\\[@\\(?:start:\\)?\\([0-9]+\\|[A-Za-z]\\)\\][ \t]*" nil t)
 584     (replace-match ""))
 585   (remove-text-properties
 586    (point-min) (point-max)
 587    '(face nil font-lock-fontified nil font-lock-multiline nil line-prefix nil wrap-prefix nil)))
 588
 589 (defun org-html-expand-for-ascii (line)
 590   "Handle quoted HTML for ASCII export."
 591   (if org-export-html-expand
 592       (while (string-match "@<[^<>\n]*>" line)
 593         ;; We just remove the tags for now.
 594         (setq line (replace-match "" nil nil line))))
 595   line)
 596
 597 (defun org-ascii-replace-entities ()
 598   "Replace entities with the ASCII representation."
 599   (let (e)
 600     (while (re-search-forward "\\\\\\([a-zA-Z]+[0-9]*\\)\\({}\\)?" nil t)
 601       (org-if-unprotected-at (match-beginning 1)
 602         (setq e (org-entity-get-representation (match-string 1)
 603                                                org-export-ascii-entities))
 604         (and e (replace-match e t t))))))
 605
 606 (defun org-export-ascii-wrap (line where)
 607   "Wrap LINE at or before WHERE."
 608   (let ((ind (org-get-indentation line))
 609         pos)
 610     (catch 'found
 611       (loop for i from where downto (/ where 2) do
 612             (and (equal (aref line i) ?\ )
 613                  (setq pos i)
 614                  (throw 'found t))))
 615     (if pos
 616         (concat (substring line 0 pos) "\n"
 617                 (make-string ind ?\ )
 618                 (substring line (1+ pos)))
 619       line)))
 620
 621 (defun org-export-ascii-push-links (link-buffer)
 622   "Push out links in the buffer."
 623   (when link-buffer
 624     ;; We still have links to push out.
 625     (insert "\n")
 626     (let ((ind ""))
 627       (save-match-data
 628         (if (save-excursion
 629               (re-search-backward
 630                (concat "^\\(\\([ \t]*\\)\\|\\("
 631                        org-outline-regexp
 632                        "\\)\\)[^ \t\n]") nil t))
 633             (setq ind (or (match-string 2)
 634                           (make-string (length (match-string 3)) ?\ )))))
 635       (mapc (lambda (x) (insert ind "[" (car x) "]: " (cdr x) "\n"))
 636             link-buffer))
 637     (insert "\n")))
 638
 639 (defun org-ascii-level-start (level title umax &optional lines)
 640   "Insert a new level in ASCII export."
 641   (let (char (n (- level umax 1)) (ind 0))
 642     (if (> level umax)
 643         (progn
 644           (insert (make-string (* 2 n) ?\ )
 645                   (char-to-string (nth (% n (length org-export-ascii-bullets))
 646                                        org-export-ascii-bullets))
 647                   " " title "\n")
 648           ;; find the indentation of the next non-empty line
 649           (catch 'stop
 650             (while lines
 651               (if (string-match "^\\* " (car lines)) (throw 'stop nil))
 652               (if (string-match "^\\([ \t]*\\)\\S-" (car lines))
 653                   (throw 'stop (setq ind (org-get-indentation (car lines)))))
 654               (pop lines)))
 655           (setq org-ascii-current-indentation (cons (* 2 (1+ n)) ind)))
 656       (if (or (not (equal (char-before) ?\n))
 657               (not (equal (char-before (1- (point))) ?\n)))
 658           (insert "\n"))
 659       (setq char (or (nth (1- level) org-export-ascii-underline)
 660                      (car (last org-export-ascii-underline))))
 661       (unless org-export-with-tags
 662         (if (string-match (org-re "[ \t]+\\(:[[:alnum:]_@#%:]+:\\)[ \t]*$") title)
 663             (setq title (replace-match "" t t title))))
 664       (if org-export-with-section-numbers
 665           (setq title (concat (org-section-number level) " " title)))
 666       (insert title "\n" (make-string (string-width title) char) "\n")
 667       (setq org-ascii-current-indentation '(0 . 0)))))
 668
 669 (defun org-insert-centered (s &optional underline)
 670   "Insert the string S centered and underline it with character UNDERLINE."
 671   (let ((ind (max (/ (- fill-column (string-width s)) 2) 0)))
 672     (insert (make-string ind ?\ ) s "\n")
 673     (if underline
 674         (insert (make-string ind ?\ )
 675                 (make-string (string-width s) underline)
 676                 "\n"))))
 677
 678 (defvar org-table-colgroup-info nil)
 679 (defun org-format-table-ascii (lines)
 680   "Format a table for ascii export."
 681   (if (stringp lines)
 682       (setq lines (org-split-string lines "\n")))
 683   (if (not (string-match "^[ \t]*|" (car lines)))
 684       ;; Table made by table.el - test for spanning
 685       lines
 686
 687     ;; A normal org table
 688     ;; Get rid of hlines at beginning and end
 689     (if (string-match "^[ \t]*|-" (car lines)) (setq lines (cdr lines)))
 690     (setq lines (nreverse lines))
 691     (if (string-match "^[ \t]*|-" (car lines)) (setq lines (cdr lines)))
 692     (setq lines (nreverse lines))
 693     (when org-export-table-remove-special-lines
 694       ;; Check if the table has a marking column.  If yes remove the
 695       ;; column and the special lines
 696       (setq lines (org-table-clean-before-export lines)))
 697     ;; Get rid of the vertical lines except for grouping
 698     (if org-export-ascii-table-keep-all-vertical-lines
 699         lines
 700       (let ((vl (org-colgroup-info-to-vline-list org-table-colgroup-info))
 701             rtn line vl1 start)
 702         (while (setq line (pop lines))
 703           (if (string-match org-table-hline-regexp line)
 704               (and (string-match "|\\(.*\\)|" line)
 705                    (setq line (replace-match " \\1" t nil line)))
 706             (setq start 0 vl1 vl)
 707             (while (string-match "|" line start)
 708               (setq start (match-end 0))
 709               (or (pop vl1) (setq line (replace-match " " t t line)))))
 710           (push line rtn))
 711         (nreverse rtn)))))
 712
 713 (defun org-colgroup-info-to-vline-list (info)
 714   (let (vl new last)
 715     (while info
 716       (setq last new new (pop info))
 717       (if (or (memq last '(:end :startend))
 718               (memq new  '(:start :startend)))
 719           (push t vl)
 720         (push nil vl)))
 721     (setq vl (nreverse vl))
 722     (and vl (setcar vl nil))
 723     vl))
 724
 725 (provide 'org-ascii)
 726
 727 ;;; org-ascii.el ends here