Implement `org-export-custom-protocol-maybe' and use it
[org-mode.git] / lisp / ox-ascii.el
blob5da956ad057ea77034ff9c6e63524ab9b7e3c2c0
1 ;;; ox-ascii.el --- ASCII Back-End for Org Export Engine
3 ;; Copyright (C) 2012-2014 Free Software Foundation, Inc.
5 ;; Author: Nicolas Goaziou <n.goaziou at gmail dot com>
6 ;; Keywords: outlines, hypermedia, calendar, wp
8 ;; This file is part of GNU Emacs.
10 ;; GNU Emacs is free software: you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation, either version 3 of the License, or
13 ;; (at your option) any later version.
15 ;; GNU Emacs is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
23 ;;; Commentary:
25 ;; This library implements an ASCII back-end for Org generic exporter.
26 ;; See Org manual for more information.
28 ;;; Code:
30 (eval-when-compile (require 'cl))
31 (require 'ox)
32 (require 'ox-publish)
34 (declare-function aa2u "ext:ascii-art-to-unicode" ())
36 ;;; Define Back-End
38 ;; The following setting won't allow to modify preferred charset
39 ;; through a buffer keyword or an option item, but, since the property
40 ;; will appear in communication channel nonetheless, it allows to
41 ;; override `org-ascii-charset' variable on the fly by the ext-plist
42 ;; mechanism.
44 ;; We also install a filter for headlines and sections, in order to
45 ;; control blank lines separating them in output string.
47 (org-export-define-backend 'ascii
48 '((bold . org-ascii-bold)
49 (center-block . org-ascii-center-block)
50 (clock . org-ascii-clock)
51 (code . org-ascii-code)
52 (comment . (lambda (&rest args) ""))
53 (comment-block . (lambda (&rest args) ""))
54 (drawer . org-ascii-drawer)
55 (dynamic-block . org-ascii-dynamic-block)
56 (entity . org-ascii-entity)
57 (example-block . org-ascii-example-block)
58 (export-block . org-ascii-export-block)
59 (export-snippet . org-ascii-export-snippet)
60 (fixed-width . org-ascii-fixed-width)
61 (footnote-reference . org-ascii-footnote-reference)
62 (headline . org-ascii-headline)
63 (horizontal-rule . org-ascii-horizontal-rule)
64 (inline-src-block . org-ascii-inline-src-block)
65 (inlinetask . org-ascii-inlinetask)
66 (inner-template . org-ascii-inner-template)
67 (italic . org-ascii-italic)
68 (item . org-ascii-item)
69 (keyword . org-ascii-keyword)
70 (latex-environment . org-ascii-latex-environment)
71 (latex-fragment . org-ascii-latex-fragment)
72 (line-break . org-ascii-line-break)
73 (link . org-ascii-link)
74 (node-property . org-ascii-node-property)
75 (paragraph . org-ascii-paragraph)
76 (plain-list . org-ascii-plain-list)
77 (plain-text . org-ascii-plain-text)
78 (planning . org-ascii-planning)
79 (property-drawer . org-ascii-property-drawer)
80 (quote-block . org-ascii-quote-block)
81 (radio-target . org-ascii-radio-target)
82 (section . org-ascii-section)
83 (special-block . org-ascii-special-block)
84 (src-block . org-ascii-src-block)
85 (statistics-cookie . org-ascii-statistics-cookie)
86 (strike-through . org-ascii-strike-through)
87 (subscript . org-ascii-subscript)
88 (superscript . org-ascii-superscript)
89 (table . org-ascii-table)
90 (table-cell . org-ascii-table-cell)
91 (table-row . org-ascii-table-row)
92 (target . org-ascii-target)
93 (template . org-ascii-template)
94 (timestamp . org-ascii-timestamp)
95 (underline . org-ascii-underline)
96 (verbatim . org-ascii-verbatim)
97 (verse-block . org-ascii-verse-block))
98 :export-block "ASCII"
99 :menu-entry
100 '(?t "Export to Plain Text"
101 ((?A "As ASCII buffer"
102 (lambda (a s v b)
103 (org-ascii-export-as-ascii a s v b '(:ascii-charset ascii))))
104 (?a "As ASCII file"
105 (lambda (a s v b)
106 (org-ascii-export-to-ascii a s v b '(:ascii-charset ascii))))
107 (?L "As Latin1 buffer"
108 (lambda (a s v b)
109 (org-ascii-export-as-ascii a s v b '(:ascii-charset latin1))))
110 (?l "As Latin1 file"
111 (lambda (a s v b)
112 (org-ascii-export-to-ascii a s v b '(:ascii-charset latin1))))
113 (?U "As UTF-8 buffer"
114 (lambda (a s v b)
115 (org-ascii-export-as-ascii a s v b '(:ascii-charset utf-8))))
116 (?u "As UTF-8 file"
117 (lambda (a s v b)
118 (org-ascii-export-to-ascii a s v b '(:ascii-charset utf-8))))))
119 :filters-alist '((:filter-headline . org-ascii-filter-headline-blank-lines)
120 (:filter-parse-tree org-ascii-filter-paragraph-spacing
121 org-ascii-filter-comment-spacing)
122 (:filter-section . org-ascii-filter-headline-blank-lines))
123 :options-alist
124 '((:ascii-bullets nil nil org-ascii-bullets)
125 (:ascii-caption-above nil nil org-ascii-caption-above)
126 (:ascii-charset nil nil org-ascii-charset)
127 (:ascii-global-margin nil nil org-ascii-global-margin)
128 (:ascii-format-drawer-function nil nil org-ascii-format-drawer-function)
129 (:ascii-format-inlinetask-function
130 nil nil org-ascii-format-inlinetask-function)
131 (:ascii-headline-spacing nil nil org-ascii-headline-spacing)
132 (:ascii-indented-line-width nil nil org-ascii-indented-line-width)
133 (:ascii-inlinetask-width nil nil org-ascii-inlinetask-width)
134 (:ascii-inner-margin nil nil org-ascii-inner-margin)
135 (:ascii-links-to-notes nil nil org-ascii-links-to-notes)
136 (:ascii-list-margin nil nil org-ascii-list-margin)
137 (:ascii-paragraph-spacing nil nil org-ascii-paragraph-spacing)
138 (:ascii-quote-margin nil nil org-ascii-quote-margin)
139 (:ascii-table-keep-all-vertical-lines
140 nil nil org-ascii-table-keep-all-vertical-lines)
141 (:ascii-table-use-ascii-art nil nil org-ascii-table-use-ascii-art)
142 (:ascii-table-widen-columns nil nil org-ascii-table-widen-columns)
143 (:ascii-text-width nil nil org-ascii-text-width)
144 (:ascii-underline nil nil org-ascii-underline)
145 (:ascii-verbatim-format nil nil org-ascii-verbatim-format)))
149 ;;; User Configurable Variables
151 (defgroup org-export-ascii nil
152 "Options for exporting Org mode files to ASCII."
153 :tag "Org Export ASCII"
154 :group 'org-export)
156 (defcustom org-ascii-text-width 72
157 "Maximum width of exported text.
158 This number includes margin size, as set in
159 `org-ascii-global-margin'."
160 :group 'org-export-ascii
161 :version "24.4"
162 :package-version '(Org . "8.0")
163 :type 'integer)
165 (defcustom org-ascii-global-margin 0
166 "Width of the left margin, in number of characters."
167 :group 'org-export-ascii
168 :version "24.4"
169 :package-version '(Org . "8.0")
170 :type 'integer)
172 (defcustom org-ascii-inner-margin 2
173 "Width of the inner margin, in number of characters.
174 Inner margin is applied between each headline."
175 :group 'org-export-ascii
176 :version "24.4"
177 :package-version '(Org . "8.0")
178 :type 'integer)
180 (defcustom org-ascii-quote-margin 6
181 "Width of margin used for quoting text, in characters.
182 This margin is applied on both sides of the text."
183 :group 'org-export-ascii
184 :version "24.4"
185 :package-version '(Org . "8.0")
186 :type 'integer)
188 (defcustom org-ascii-list-margin 0
189 "Width of margin used for plain lists, in characters.
190 This margin applies to top level list only, not to its
191 sub-lists."
192 :group 'org-export-ascii
193 :version "25.1"
194 :package-version '(Org . "8.3")
195 :type 'integer)
197 (defcustom org-ascii-inlinetask-width 30
198 "Width of inline tasks, in number of characters.
199 This number ignores any margin."
200 :group 'org-export-ascii
201 :version "24.4"
202 :package-version '(Org . "8.0")
203 :type 'integer)
205 (defcustom org-ascii-headline-spacing '(1 . 2)
206 "Number of blank lines inserted around headlines.
208 This variable can be set to a cons cell. In that case, its car
209 represents the number of blank lines present before headline
210 contents whereas its cdr reflects the number of blank lines after
211 contents.
213 A nil value replicates the number of blank lines found in the
214 original Org buffer at the same place."
215 :group 'org-export-ascii
216 :version "24.4"
217 :package-version '(Org . "8.0")
218 :type '(choice
219 (const :tag "Replicate original spacing" nil)
220 (cons :tag "Set an uniform spacing"
221 (integer :tag "Number of blank lines before contents")
222 (integer :tag "Number of blank lines after contents"))))
224 (defcustom org-ascii-indented-line-width 'auto
225 "Additional indentation width for the first line in a paragraph.
226 If the value is an integer, indent the first line of each
227 paragraph by this width, unless it is located at the beginning of
228 a section, in which case indentation is removed from that line.
229 If it is the symbol `auto' preserve indentation from original
230 document."
231 :group 'org-export-ascii
232 :version "24.4"
233 :package-version '(Org . "8.0")
234 :type '(choice
235 (integer :tag "Number of white spaces characters")
236 (const :tag "Preserve original width" auto)))
238 (defcustom org-ascii-paragraph-spacing 'auto
239 "Number of white lines between paragraphs.
240 If the value is an integer, add this number of blank lines
241 between contiguous paragraphs. If is it the symbol `auto', keep
242 the same number of blank lines as in the original document."
243 :group 'org-export-ascii
244 :version "24.4"
245 :package-version '(Org . "8.0")
246 :type '(choice
247 (integer :tag "Number of blank lines")
248 (const :tag "Preserve original spacing" auto)))
250 (defcustom org-ascii-charset 'ascii
251 "The charset allowed to represent various elements and objects.
252 Possible values are:
253 `ascii' Only use plain ASCII characters
254 `latin1' Include Latin-1 characters
255 `utf-8' Use all UTF-8 characters"
256 :group 'org-export-ascii
257 :version "24.4"
258 :package-version '(Org . "8.0")
259 :type '(choice
260 (const :tag "ASCII" ascii)
261 (const :tag "Latin-1" latin1)
262 (const :tag "UTF-8" utf-8)))
264 (defcustom org-ascii-underline '((ascii ?= ?~ ?-)
265 (latin1 ?= ?~ ?-)
266 (utf-8 ?═ ?─ ?╌ ?┄ ?┈))
267 "Characters for underlining headings in ASCII export.
269 Alist whose key is a symbol among `ascii', `latin1' and `utf-8'
270 and whose value is a list of characters.
272 For each supported charset, this variable associates a sequence
273 of underline characters. In a sequence, the characters will be
274 used in order for headlines level 1, 2, ... If no character is
275 available for a given level, the headline won't be underlined."
276 :group 'org-export-ascii
277 :version "24.4"
278 :package-version '(Org . "8.0")
279 :type '(list
280 (cons :tag "Underline characters sequence"
281 (const :tag "ASCII charset" ascii)
282 (repeat character))
283 (cons :tag "Underline characters sequence"
284 (const :tag "Latin-1 charset" latin1)
285 (repeat character))
286 (cons :tag "Underline characters sequence"
287 (const :tag "UTF-8 charset" utf-8)
288 (repeat character))))
290 (defcustom org-ascii-bullets '((ascii ?* ?+ ?-)
291 (latin1 ?§ ?¶)
292 (utf-8 ?◊))
293 "Bullet characters for headlines converted to lists in ASCII export.
295 Alist whose key is a symbol among `ascii', `latin1' and `utf-8'
296 and whose value is a list of characters.
298 The first character is used for the first level considered as low
299 level, and so on. If there are more levels than characters given
300 here, the list will be repeated.
302 Note that this variable doesn't affect plain lists
303 representation."
304 :group 'org-export-ascii
305 :version "24.4"
306 :package-version '(Org . "8.0")
307 :type '(list
308 (cons :tag "Bullet characters for low level headlines"
309 (const :tag "ASCII charset" ascii)
310 (repeat character))
311 (cons :tag "Bullet characters for low level headlines"
312 (const :tag "Latin-1 charset" latin1)
313 (repeat character))
314 (cons :tag "Bullet characters for low level headlines"
315 (const :tag "UTF-8 charset" utf-8)
316 (repeat character))))
318 (defcustom org-ascii-links-to-notes t
319 "Non-nil means convert links to notes before the next headline.
320 When nil, the link will be exported in place. If the line
321 becomes long in this way, it will be wrapped."
322 :group 'org-export-ascii
323 :version "24.4"
324 :package-version '(Org . "8.0")
325 :type 'boolean)
327 (defcustom org-ascii-table-keep-all-vertical-lines nil
328 "Non-nil means keep all vertical lines in ASCII tables.
329 When nil, vertical lines will be removed except for those needed
330 for column grouping."
331 :group 'org-export-ascii
332 :version "24.4"
333 :package-version '(Org . "8.0")
334 :type 'boolean)
336 (defcustom org-ascii-table-widen-columns t
337 "Non-nil means widen narrowed columns for export.
338 When nil, narrowed columns will look in ASCII export just like in
339 Org mode, i.e. with \"=>\" as ellipsis."
340 :group 'org-export-ascii
341 :version "24.4"
342 :package-version '(Org . "8.0")
343 :type 'boolean)
345 (defcustom org-ascii-table-use-ascii-art nil
346 "Non-nil means table.el tables are turned into ascii-art.
348 It only makes sense when export charset is `utf-8'. It is nil by
349 default since it requires ascii-art-to-unicode.el package. You
350 can download it here:
352 http://gnuvola.org/software/j/aa2u/ascii-art-to-unicode.el."
353 :group 'org-export-ascii
354 :version "24.4"
355 :package-version '(Org . "8.0")
356 :type 'boolean)
358 (defcustom org-ascii-caption-above nil
359 "When non-nil, place caption string before the element.
360 Otherwise, place it right after it."
361 :group 'org-export-ascii
362 :version "24.4"
363 :package-version '(Org . "8.0")
364 :type 'boolean)
366 (defcustom org-ascii-verbatim-format "`%s'"
367 "Format string used for verbatim text and inline code."
368 :group 'org-export-ascii
369 :version "24.4"
370 :package-version '(Org . "8.0")
371 :type 'string)
373 (defcustom org-ascii-format-drawer-function
374 (lambda (name contents width) contents)
375 "Function called to format a drawer in ASCII.
377 The function must accept three parameters:
378 NAME the drawer name, like \"LOGBOOK\"
379 CONTENTS the contents of the drawer.
380 WIDTH the text width within the drawer.
382 The function should return either the string to be exported or
383 nil to ignore the drawer.
385 The default value simply returns the value of CONTENTS."
386 :group 'org-export-ascii
387 :version "24.4"
388 :package-version '(Org . "8.0")
389 :type 'function)
391 (defcustom org-ascii-format-inlinetask-function
392 'org-ascii-format-inlinetask-default
393 "Function called to format an inlinetask in ASCII.
395 The function must accept nine parameters:
396 TODO the todo keyword, as a string
397 TODO-TYPE the todo type, a symbol among `todo', `done' and nil.
398 PRIORITY the inlinetask priority, as a string
399 NAME the inlinetask name, as a string.
400 TAGS the inlinetask tags, as a list of strings.
401 CONTENTS the contents of the inlinetask, as a string.
402 WIDTH the width of the inlinetask, as a number.
403 INLINETASK the inlinetask itself.
404 INFO the info channel.
406 The function should return either the string to be exported or
407 nil to ignore the inline task."
408 :group 'org-export-ascii
409 :version "24.4"
410 :package-version '(Org . "8.3")
411 :type 'function)
415 ;;; Internal Functions
417 ;; Internal functions fall into three categories.
419 ;; The first one is about text formatting. The core functions are
420 ;; `org-ascii--current-text-width' and
421 ;; `org-ascii--current-justification', which determine, respectively,
422 ;; the current text width allowed to a given element and its expected
423 ;; justification. Once this information is known,
424 ;; `org-ascii--fill-string', `org-ascii--justify-lines',
425 ;; `org-ascii--justify-element' `org-ascii--box-string' and
426 ;; `org-ascii--indent-string' can operate on a given output string.
427 ;; In particular, justification happens at the regular (i.e.,
428 ;; non-greater) element level, which means that when the exporting
429 ;; process reaches a container (e.g., a center block) content are
430 ;; already justified.
432 ;; The second category contains functions handling elements listings,
433 ;; triggered by "#+TOC:" keyword. As such, `org-ascii--build-toc'
434 ;; returns a complete table of contents, `org-ascii--list-listings'
435 ;; returns a list of referenceable src-block elements, and
436 ;; `org-ascii--list-tables' does the same for table elements.
438 ;; The third category includes general helper functions.
439 ;; `org-ascii--build-title' creates the title for a given headline
440 ;; or inlinetask element. `org-ascii--build-caption' returns the
441 ;; caption string associated to a table or a src-block.
442 ;; `org-ascii--describe-links' creates notes about links for
443 ;; insertion at the end of a section. It uses
444 ;; `org-ascii--unique-links' to get the list of links to describe.
445 ;; Eventually, `org-ascii--translate' translates a string according
446 ;; to language and charset specification.
449 (defun org-ascii--fill-string (s text-width info &optional justify)
450 "Fill a string with specified text-width and return it.
452 S is the string being filled. TEXT-WIDTH is an integer
453 specifying maximum length of a line. INFO is the plist used as
454 a communication channel.
456 Optional argument JUSTIFY can specify any type of justification
457 among `left', `center', `right' or `full'. A nil value is
458 equivalent to `left'. For a justification that doesn't also fill
459 string, see `org-ascii--justify-lines' and
460 `org-ascii--justify-block'.
462 Return nil if S isn't a string."
463 (when (stringp s)
464 (let ((double-space-p sentence-end-double-space))
465 (with-temp-buffer
466 (let ((fill-column text-width)
467 (use-hard-newlines t)
468 (sentence-end-double-space double-space-p))
469 (insert (if (plist-get info :preserve-breaks)
470 (replace-regexp-in-string "\n" hard-newline s)
472 (fill-region (point-min) (point-max) justify))
473 (buffer-string)))))
475 (defun org-ascii--justify-lines (s text-width how)
476 "Justify all lines in string S.
477 TEXT-WIDTH is an integer specifying maximum length of a line.
478 HOW determines the type of justification: it can be `left',
479 `right', `full' or `center'."
480 (with-temp-buffer
481 (insert s)
482 (goto-char (point-min))
483 (let ((fill-column text-width)
484 ;; Disable `adaptive-fill-mode' so it doesn't prevent
485 ;; filling lines matching `adaptive-fill-regexp'.
486 (adaptive-fill-mode nil))
487 (while (< (point) (point-max))
488 (justify-current-line how)
489 (forward-line)))
490 (buffer-string)))
492 (defun org-ascii--justify-element (contents element info)
493 "Justify CONTENTS of ELEMENT.
494 INFO is a plist used as a communication channel. Justification
495 is done according to the type of element. More accurately,
496 paragraphs are filled and other elements are justified as blocks,
497 that is according to the widest non blank line in CONTENTS."
498 (if (not (org-string-nw-p contents)) contents
499 (let ((text-width (org-ascii--current-text-width element info))
500 (how (org-ascii--current-justification element)))
501 (cond
502 ((eq (org-element-type element) 'paragraph)
503 ;; Paragraphs are treated specially as they need to be filled.
504 (org-ascii--fill-string contents text-width info how))
505 ((eq how 'left) contents)
506 (t (with-temp-buffer
507 (insert contents)
508 (goto-char (point-min))
509 (catch 'exit
510 (let ((max-width 0))
511 ;; Compute maximum width. Bail out if it is greater
512 ;; than page width, since no justification is
513 ;; possible.
514 (save-excursion
515 (while (not (eobp))
516 (unless (org-looking-at-p "[ \t]*$")
517 (end-of-line)
518 (let ((column (current-column)))
519 (cond
520 ((>= column text-width) (throw 'exit contents))
521 ((> column max-width) (setq max-width column)))))
522 (forward-line)))
523 ;; Justify every line according to TEXT-WIDTH and
524 ;; MAX-WIDTH.
525 (let ((offset (/ (- text-width max-width)
526 (if (eq how 'right) 1 2))))
527 (if (zerop offset) (throw 'exit contents)
528 (while (not (eobp))
529 (unless (org-looking-at-p "[ \t]*$")
530 (org-indent-to-column offset))
531 (forward-line)))))
532 (buffer-string))))))))
534 (defun org-ascii--indent-string (s width)
535 "Indent string S by WIDTH white spaces.
536 Empty lines are not indented."
537 (when (stringp s)
538 (replace-regexp-in-string
539 "\\(^\\)[ \t]*\\S-" (make-string width ?\s) s nil nil 1)))
541 (defun org-ascii--box-string (s info)
542 "Return string S with a partial box to its left.
543 INFO is a plist used as a communication channel."
544 (let ((utf8p (eq (plist-get info :ascii-charset) 'utf-8)))
545 (format (if utf8p "┌────\n%s\n└────" ",----\n%s\n`----")
546 (replace-regexp-in-string
547 "^" (if utf8p "│ " "| ")
548 ;; Remove last newline character.
549 (replace-regexp-in-string "\n[ \t]*\\'" "" s)))))
551 (defun org-ascii--current-text-width (element info)
552 "Return maximum text width for ELEMENT's contents.
553 INFO is a plist used as a communication channel."
554 (case (org-element-type element)
555 ;; Elements with an absolute width: `headline' and `inlinetask'.
556 (inlinetask (plist-get info :ascii-inlinetask-width))
557 (headline
558 (- (plist-get info :ascii-text-width)
559 (let ((low-level-rank (org-export-low-level-p element info)))
560 (if low-level-rank (* low-level-rank 2)
561 (plist-get info :ascii-global-margin)))))
562 ;; Elements with a relative width: store maximum text width in
563 ;; TOTAL-WIDTH.
564 (otherwise
565 (let* ((genealogy (org-element-lineage element nil t))
566 ;; Total width is determined by the presence, or not, of an
567 ;; inline task among ELEMENT parents.
568 (total-width
569 (if (loop for parent in genealogy
570 thereis (eq (org-element-type parent) 'inlinetask))
571 (plist-get info :ascii-inlinetask-width)
572 ;; No inlinetask: Remove global margin from text width.
573 (- (plist-get info :ascii-text-width)
574 (plist-get info :ascii-global-margin)
575 (let ((parent (org-export-get-parent-headline element)))
576 ;; Inner margin doesn't apply to text before first
577 ;; headline.
578 (if (not parent) 0
579 (let ((low-level-rank
580 (org-export-low-level-p parent info)))
581 ;; Inner margin doesn't apply to contents of
582 ;; low level headlines, since they've got their
583 ;; own indentation mechanism.
584 (if low-level-rank (* low-level-rank 2)
585 (plist-get info :ascii-inner-margin)))))))))
586 (- total-width
587 ;; Each `quote-block' and `verse-block' above narrows text
588 ;; width by twice the standard margin size.
589 (+ (* (loop for parent in genealogy
590 when (memq (org-element-type parent)
591 '(quote-block verse-block))
592 count parent)
593 2 (plist-get info :ascii-quote-margin))
594 ;; Apply list margin once per "top-level" plain-list
595 ;; containing current line
596 (* (let ((count 0))
597 (dolist (e genealogy count)
598 (and (eq (org-element-type e) 'plain-list)
599 (not (eq (org-element-type (org-export-get-parent e))
600 'item))
601 (incf count))))
602 (plist-get info :ascii-list-margin))
603 ;; Text width within a plain-list is restricted by
604 ;; indentation of current item. If that's the case,
605 ;; compute it with the help of `:structure' property from
606 ;; parent item, if any.
607 (let ((parent-item
608 (if (eq (org-element-type element) 'item) element
609 (loop for parent in genealogy
610 when (eq (org-element-type parent) 'item)
611 return parent))))
612 (if (not parent-item) 0
613 ;; Compute indentation offset of the current item,
614 ;; that is the sum of the difference between its
615 ;; indentation and the indentation of the top item in
616 ;; the list and current item bullet's length. Also
617 ;; remove checkbox length, and tag length (for
618 ;; description lists) or bullet length.
619 (let ((struct (org-element-property :structure parent-item))
620 (beg-item (org-element-property :begin parent-item)))
621 (+ (- (org-list-get-ind beg-item struct)
622 (org-list-get-ind
623 (org-list-get-top-point struct) struct))
624 (string-width (or (org-ascii--checkbox parent-item info)
625 ""))
626 (string-width
627 (or (org-list-get-tag beg-item struct)
628 (org-list-get-bullet beg-item struct)))))))))))))
630 (defun org-ascii--current-justification (element)
631 "Return expected justification for ELEMENT's contents.
632 Return value is a symbol among `left', `center', `right' and
633 `full'."
634 (let (justification)
635 (while (and (not justification)
636 (setq element (org-element-property :parent element)))
637 (case (org-element-type element)
638 (center-block (setq justification 'center))
639 (special-block
640 (let ((name (org-element-property :type element)))
641 (cond ((string= name "JUSTIFYRIGHT") (setq justification 'right))
642 ((string= name "JUSTIFYLEFT") (setq justification 'left)))))))
643 (or justification 'left)))
645 (defun org-ascii--build-title
646 (element info text-width &optional underline notags toc)
647 "Format ELEMENT title and return it.
649 ELEMENT is either an `headline' or `inlinetask' element. INFO is
650 a plist used as a communication channel. TEXT-WIDTH is an
651 integer representing the maximum length of a line.
653 When optional argument UNDERLINE is non-nil, underline title,
654 without the tags, according to `org-ascii-underline'
655 specifications.
657 If optional argument NOTAGS is non-nil, no tags will be added to
658 the title.
660 When optional argument TOC is non-nil, use optional title if
661 possible. It doesn't apply to `inlinetask' elements."
662 (let* ((headlinep (eq (org-element-type element) 'headline))
663 (numbers
664 ;; Numbering is specific to headlines.
665 (and headlinep (org-export-numbered-headline-p element info)
666 ;; All tests passed: build numbering string.
667 (concat
668 (mapconcat
669 'number-to-string
670 (org-export-get-headline-number element info) ".")
671 " ")))
672 (text
673 (org-trim
674 (org-export-data
675 (if (and toc headlinep) (org-export-get-alt-title element info)
676 (org-element-property :title element))
677 info)))
678 (todo
679 (and (plist-get info :with-todo-keywords)
680 (let ((todo (org-element-property :todo-keyword element)))
681 (and todo (concat (org-export-data todo info) " ")))))
682 (tags (and (not notags)
683 (plist-get info :with-tags)
684 (let ((tag-list (org-export-get-tags element info)))
685 (and tag-list
686 (format ":%s:"
687 (mapconcat 'identity tag-list ":"))))))
688 (priority
689 (and (plist-get info :with-priority)
690 (let ((char (org-element-property :priority element)))
691 (and char (format "(#%c) " char)))))
692 (first-part (concat numbers todo priority text)))
693 (concat
694 first-part
695 ;; Align tags, if any.
696 (when tags
697 (format
698 (format " %%%ds"
699 (max (- text-width (1+ (string-width first-part)))
700 (string-width tags)))
701 tags))
702 ;; Maybe underline text, if ELEMENT type is `headline' and an
703 ;; underline character has been defined.
704 (when (and underline headlinep)
705 (let ((under-char
706 (nth (1- (org-export-get-relative-level element info))
707 (cdr (assq (plist-get info :ascii-charset)
708 (plist-get info :ascii-underline))))))
709 (and under-char
710 (concat "\n"
711 (make-string (/ (string-width first-part)
712 (char-width under-char))
713 under-char))))))))
715 (defun org-ascii--has-caption-p (element info)
716 "Non-nil when ELEMENT has a caption affiliated keyword.
717 INFO is a plist used as a communication channel. This function
718 is meant to be used as a predicate for `org-export-get-ordinal'."
719 (org-element-property :caption element))
721 (defun org-ascii--build-caption (element info)
722 "Return caption string for ELEMENT, if applicable.
724 INFO is a plist used as a communication channel.
726 The caption string contains the sequence number of ELEMENT along
727 with its real caption. Return nil when ELEMENT has no affiliated
728 caption keyword."
729 (let ((caption (org-export-get-caption element)))
730 (when caption
731 ;; Get sequence number of current src-block among every
732 ;; src-block with a caption.
733 (let ((reference
734 (org-export-get-ordinal
735 element info nil 'org-ascii--has-caption-p))
736 (title-fmt (org-ascii--translate
737 (case (org-element-type element)
738 (table "Table %d:")
739 (src-block "Listing %d:"))
740 info)))
741 (org-ascii--fill-string
742 (concat (format title-fmt reference)
744 (org-export-data caption info))
745 (org-ascii--current-text-width element info) info)))))
747 (defun org-ascii--build-toc (info &optional n keyword)
748 "Return a table of contents.
750 INFO is a plist used as a communication channel.
752 Optional argument N, when non-nil, is an integer specifying the
753 depth of the table.
755 Optional argument KEYWORD specifies the TOC keyword, if any, from
756 which the table of contents generation has been initiated."
757 (let ((title (org-ascii--translate "Table of Contents" info)))
758 (concat
759 title "\n"
760 (make-string (string-width title)
761 (if (eq (plist-get info :ascii-charset) 'utf-8) ?─ ?_))
762 "\n\n"
763 (let ((text-width
764 (if keyword (org-ascii--current-text-width keyword info)
765 (- (plist-get info :ascii-text-width)
766 (plist-get info :ascii-global-margin)))))
767 (mapconcat
768 (lambda (headline)
769 (let* ((level (org-export-get-relative-level headline info))
770 (indent (* (1- level) 3)))
771 (concat
772 (unless (zerop indent) (concat (make-string (1- indent) ?.) " "))
773 (org-ascii--build-title
774 headline info (- text-width indent) nil
775 (or (not (plist-get info :with-tags))
776 (eq (plist-get info :with-tags) 'not-in-toc))
777 'toc))))
778 (org-export-collect-headlines info n) "\n")))))
780 (defun org-ascii--list-listings (keyword info)
781 "Return a list of listings.
783 KEYWORD is the keyword that initiated the list of listings
784 generation. INFO is a plist used as a communication channel."
785 (let ((title (org-ascii--translate "List of Listings" info)))
786 (concat
787 title "\n"
788 (make-string (string-width title)
789 (if (eq (plist-get info :ascii-charset) 'utf-8) ?─ ?_))
790 "\n\n"
791 (let ((text-width
792 (if keyword (org-ascii--current-text-width keyword info)
793 (- (plist-get info :ascii-text-width)
794 (plist-get info :ascii-global-margin))))
795 ;; Use a counter instead of retrieving ordinal of each
796 ;; src-block.
797 (count 0))
798 (mapconcat
799 (lambda (src-block)
800 ;; Store initial text so its length can be computed. This is
801 ;; used to properly align caption right to it in case of
802 ;; filling (like contents of a description list item).
803 (let* ((initial-text
804 (format (org-ascii--translate "Listing %d:" info)
805 (incf count)))
806 (initial-width (string-width initial-text)))
807 (concat
808 initial-text " "
809 (org-trim
810 (org-ascii--indent-string
811 (org-ascii--fill-string
812 ;; Use short name in priority, if available.
813 (let ((caption (or (org-export-get-caption src-block t)
814 (org-export-get-caption src-block))))
815 (org-export-data caption info))
816 (- text-width initial-width) info)
817 initial-width)))))
818 (org-export-collect-listings info) "\n")))))
820 (defun org-ascii--list-tables (keyword info)
821 "Return a list of tables.
823 KEYWORD is the keyword that initiated the list of tables
824 generation. INFO is a plist used as a communication channel."
825 (let ((title (org-ascii--translate "List of Tables" info)))
826 (concat
827 title "\n"
828 (make-string (string-width title)
829 (if (eq (plist-get info :ascii-charset) 'utf-8) ?─ ?_))
830 "\n\n"
831 (let ((text-width
832 (if keyword (org-ascii--current-text-width keyword info)
833 (- (plist-get info :ascii-text-width)
834 (plist-get info :ascii-global-margin))))
835 ;; Use a counter instead of retrieving ordinal of each
836 ;; src-block.
837 (count 0))
838 (mapconcat
839 (lambda (table)
840 ;; Store initial text so its length can be computed. This is
841 ;; used to properly align caption right to it in case of
842 ;; filling (like contents of a description list item).
843 (let* ((initial-text
844 (format (org-ascii--translate "Table %d:" info)
845 (incf count)))
846 (initial-width (string-width initial-text)))
847 (concat
848 initial-text " "
849 (org-trim
850 (org-ascii--indent-string
851 (org-ascii--fill-string
852 ;; Use short name in priority, if available.
853 (let ((caption (or (org-export-get-caption table t)
854 (org-export-get-caption table))))
855 (org-export-data caption info))
856 (- text-width initial-width) info)
857 initial-width)))))
858 (org-export-collect-tables info) "\n")))))
860 (defun org-ascii--unique-links (element info)
861 "Return a list of unique link references in ELEMENT.
862 ELEMENT is either a headline element or a section element. INFO
863 is a plist used as a communication channel."
864 (let* (seen
865 (unique-link-p
866 (function
867 ;; Return LINK if it wasn't referenced so far, or nil.
868 ;; Update SEEN links along the way.
869 (lambda (link)
870 (let ((footprint
871 ;; Normalize description in footprints.
872 (cons (org-element-property :raw-link link)
873 (let ((contents (org-element-contents link)))
874 (and contents
875 (replace-regexp-in-string
876 "[ \r\t\n]+" " "
877 (org-trim
878 (org-element-interpret-data contents))))))))
879 ;; Ignore LINK if it hasn't been translated already.
880 ;; It can happen if it is located in an affiliated
881 ;; keyword that was ignored.
882 (when (and (org-string-nw-p
883 (gethash link (plist-get info :exported-data)))
884 (not (member footprint seen)))
885 (push footprint seen) link)))))
886 ;; If at a section, find parent headline, if any, in order to
887 ;; count links that might be in the title.
888 (headline
889 (if (eq (org-element-type element) 'headline) element
890 (or (org-export-get-parent-headline element) element))))
891 ;; Get all links in HEADLINE.
892 (org-element-map headline 'link
893 (lambda (l) (funcall unique-link-p l)) info nil nil t)))
895 (defun org-ascii--describe-links (links width info)
896 "Return a string describing a list of links.
898 LINKS is a list of link type objects, as returned by
899 `org-ascii--unique-links'. WIDTH is the text width allowed for
900 the output string. INFO is a plist used as a communication
901 channel."
902 (mapconcat
903 (lambda (link)
904 (let ((type (org-element-property :type link))
905 (anchor (let ((desc (org-element-contents link)))
906 (if desc (org-export-data desc info)
907 (org-element-property :raw-link link)))))
908 (cond
909 ;; Coderefs, radio links and fuzzy links are ignored.
910 ((member type '("coderef" "radio" "fuzzy")) nil)
911 ;; Id and custom-id links: Headlines refer to their numbering.
912 ((member type '("custom-id" "id"))
913 (let ((dest (org-export-resolve-id-link link info)))
914 (concat
915 (org-ascii--fill-string
916 (format
917 "[%s] %s"
918 anchor
919 (if (not dest) (org-ascii--translate "Unknown reference" info)
920 (format
921 (org-ascii--translate "See section %s" info)
922 (if (org-export-numbered-headline-p dest info)
923 (mapconcat #'number-to-string
924 (org-export-get-headline-number dest info) ".")
925 (org-export-data (org-element-property :title dest) info)))))
926 width info) "\n\n")))
927 ;; Do not add a link that cannot be resolved and doesn't have
928 ;; any description: destination is already visible in the
929 ;; paragraph.
930 ((not (org-element-contents link)) nil)
931 ;; Do not add a link already handled by custom export
932 ;; functions.
933 ((let ((protocol (nth 2 (assoc type org-link-protocols)))
934 (path (org-element-property :path link)))
935 (and (functionp protocol)
936 (funcall protocol (org-link-unescape path) anchor 'ascii)))
937 nil)
939 (concat
940 (org-ascii--fill-string
941 (format "[%s] %s" anchor (org-element-property :raw-link link))
942 width info)
943 "\n\n")))))
944 links ""))
946 (defun org-ascii--checkbox (item info)
947 "Return checkbox string for ITEM or nil.
948 INFO is a plist used as a communication channel."
949 (let ((utf8p (eq (plist-get info :ascii-charset) 'utf-8)))
950 (case (org-element-property :checkbox item)
951 (on (if utf8p "☑ " "[X] "))
952 (off (if utf8p "☐ " "[ ] "))
953 (trans (if utf8p "☒ " "[-] ")))))
957 ;;; Template
959 (defun org-ascii-template--document-title (info)
960 "Return document title, as a string.
961 INFO is a plist used as a communication channel."
962 (let* ((text-width (plist-get info :ascii-text-width))
963 ;; Links in the title will not be resolved later, so we make
964 ;; sure their path is located right after them.
965 (info (org-combine-plists info '(:ascii-links-to-notes nil)))
966 (title (org-export-data (plist-get info :title) info))
967 (author (and (plist-get info :with-author)
968 (let ((auth (plist-get info :author)))
969 (and auth (org-export-data auth info)))))
970 (email (and (plist-get info :with-email)
971 (org-export-data (plist-get info :email) info)))
972 (date (and (plist-get info :with-date)
973 (org-export-data (org-export-get-date info) info))))
974 ;; There are two types of title blocks depending on the presence
975 ;; of a title to display.
976 (if (string= title "")
977 ;; Title block without a title. DATE is positioned at the top
978 ;; right of the document, AUTHOR to the top left and EMAIL
979 ;; just below.
980 (cond
981 ((and (org-string-nw-p date) (org-string-nw-p author))
982 (concat
983 author
984 (make-string (- text-width (string-width date) (string-width author))
985 ?\s)
986 date
987 (when (org-string-nw-p email) (concat "\n" email))
988 "\n\n\n"))
989 ((and (org-string-nw-p date) (org-string-nw-p email))
990 (concat
991 email
992 (make-string (- text-width (string-width date) (string-width email))
993 ?\s)
994 date "\n\n\n"))
995 ((org-string-nw-p date)
996 (concat
997 (org-ascii--justify-lines date text-width 'right)
998 "\n\n\n"))
999 ((and (org-string-nw-p author) (org-string-nw-p email))
1000 (concat author "\n" email "\n\n\n"))
1001 ((org-string-nw-p author) (concat author "\n\n\n"))
1002 ((org-string-nw-p email) (concat email "\n\n\n")))
1003 ;; Title block with a title. Document's TITLE, along with the
1004 ;; AUTHOR and its EMAIL are both overlined and an underlined,
1005 ;; centered. Date is just below, also centered.
1006 (let* ((utf8p (eq (plist-get info :ascii-charset) 'utf-8))
1007 ;; Format TITLE. It may be filled if it is too wide,
1008 ;; that is wider than the two thirds of the total width.
1009 (title-len (min (length title) (/ (* 2 text-width) 3)))
1010 (formatted-title (org-ascii--fill-string title title-len info))
1011 (line
1012 (make-string
1013 (min (+ (max title-len
1014 (string-width (or author ""))
1015 (string-width (or email "")))
1017 text-width) (if utf8p ?━ ?_))))
1018 (org-ascii--justify-lines
1019 (concat line "\n"
1020 (unless utf8p "\n")
1021 (upcase formatted-title)
1022 (cond
1023 ((and (org-string-nw-p author) (org-string-nw-p email))
1024 (concat (if utf8p "\n\n\n" "\n\n") author "\n" email))
1025 ((org-string-nw-p author)
1026 (concat (if utf8p "\n\n\n" "\n\n") author))
1027 ((org-string-nw-p email)
1028 (concat (if utf8p "\n\n\n" "\n\n") email)))
1029 "\n" line
1030 (when (org-string-nw-p date) (concat "\n\n\n" date))
1031 "\n\n\n") text-width 'center)))))
1033 (defun org-ascii-inner-template (contents info)
1034 "Return complete document string after ASCII conversion.
1035 CONTENTS is the transcoded contents string. INFO is a plist
1036 holding export options."
1037 (org-element-normalize-string
1038 (let ((global-margin (plist-get info :ascii-global-margin)))
1039 (org-ascii--indent-string
1040 (concat
1041 ;; 1. Document's body.
1042 contents
1043 ;; 2. Footnote definitions.
1044 (let ((definitions (org-export-collect-footnote-definitions
1045 (plist-get info :parse-tree) info))
1046 ;; Insert full links right inside the footnote definition
1047 ;; as they have no chance to be inserted later.
1048 (info (org-combine-plists info '(:ascii-links-to-notes nil))))
1049 (when definitions
1050 (concat
1051 "\n\n\n"
1052 (let ((title (org-ascii--translate "Footnotes" info)))
1053 (concat
1054 title "\n"
1055 (make-string
1056 (string-width title)
1057 (if (eq (plist-get info :ascii-charset) 'utf-8) ?─ ?_))))
1058 "\n\n"
1059 (let ((text-width (- (plist-get info :ascii-text-width)
1060 global-margin)))
1061 (mapconcat
1062 (lambda (ref)
1063 (let ((id (format "[%s] " (car ref))))
1064 ;; Distinguish between inline definitions and
1065 ;; full-fledged definitions.
1066 (org-trim
1067 (let ((def (nth 2 ref)))
1068 (if (eq (org-element-type def) 'org-data)
1069 ;; Full-fledged definition: footnote ID is
1070 ;; inserted inside the first parsed
1071 ;; paragraph (FIRST), if any, to be sure
1072 ;; filling will take it into consideration.
1073 (let ((first (car (org-element-contents def))))
1074 (if (not (eq (org-element-type first) 'paragraph))
1075 (concat id "\n" (org-export-data def info))
1076 (push id (nthcdr 2 first))
1077 (org-export-data def info)))
1078 ;; Fill paragraph once footnote ID is inserted
1079 ;; in order to have a correct length for first
1080 ;; line.
1081 (org-ascii--fill-string
1082 (concat id (org-export-data def info))
1083 text-width info))))))
1084 definitions "\n\n"))))))
1085 global-margin))))
1087 (defun org-ascii-template (contents info)
1088 "Return complete document string after ASCII conversion.
1089 CONTENTS is the transcoded contents string. INFO is a plist
1090 holding export options."
1091 (let ((global-margin (plist-get info :ascii-global-margin)))
1092 (concat
1093 ;; 1. Build title block.
1094 (org-ascii--indent-string
1095 (concat (org-ascii-template--document-title info)
1096 ;; 2. Table of contents.
1097 (let ((depth (plist-get info :with-toc)))
1098 (when depth
1099 (concat
1100 (org-ascii--build-toc info (and (wholenump depth) depth))
1101 "\n\n\n"))))
1102 global-margin)
1103 ;; 3. Document's body.
1104 contents
1105 ;; 4. Creator. Ignore `comment' value as there are no comments in
1106 ;; ASCII. Justify it to the bottom right.
1107 (org-ascii--indent-string
1108 (let ((creator-info (plist-get info :with-creator))
1109 (text-width (- (plist-get info :ascii-text-width) global-margin)))
1110 (unless (or (not creator-info) (eq creator-info 'comment))
1111 (concat
1112 "\n\n\n"
1113 (org-ascii--fill-string
1114 (plist-get info :creator) text-width info 'right))))
1115 global-margin))))
1117 (defun org-ascii--translate (s info)
1118 "Translate string S according to specified language and charset.
1119 INFO is a plist used as a communication channel."
1120 (let ((charset (intern (format ":%s" (plist-get info :ascii-charset)))))
1121 (org-export-translate s charset info)))
1125 ;;; Transcode Functions
1127 ;;;; Bold
1129 (defun org-ascii-bold (bold contents info)
1130 "Transcode BOLD from Org to ASCII.
1131 CONTENTS is the text with bold markup. INFO is a plist holding
1132 contextual information."
1133 (format "*%s*" contents))
1136 ;;;; Center Block
1138 (defun org-ascii-center-block (center-block contents info)
1139 "Transcode a CENTER-BLOCK element from Org to ASCII.
1140 CONTENTS holds the contents of the block. INFO is a plist
1141 holding contextual information."
1142 ;; Center has already been taken care of at a lower level, so
1143 ;; there's nothing left to do.
1144 contents)
1147 ;;;; Clock
1149 (defun org-ascii-clock (clock contents info)
1150 "Transcode a CLOCK object from Org to ASCII.
1151 CONTENTS is nil. INFO is a plist holding contextual
1152 information."
1153 (org-ascii--justify-element
1154 (concat org-clock-string " "
1155 (org-timestamp-translate (org-element-property :value clock))
1156 (let ((time (org-element-property :duration clock)))
1157 (and time
1158 (concat " => "
1159 (apply 'format
1160 "%2s:%02s"
1161 (org-split-string time ":"))))))
1162 clock info))
1165 ;;;; Code
1167 (defun org-ascii-code (code contents info)
1168 "Return a CODE object from Org to ASCII.
1169 CONTENTS is nil. INFO is a plist holding contextual
1170 information."
1171 (format (plist-get info :ascii-verbatim-format)
1172 (org-element-property :value code)))
1175 ;;;; Drawer
1177 (defun org-ascii-drawer (drawer contents info)
1178 "Transcode a DRAWER element from Org to ASCII.
1179 CONTENTS holds the contents of the block. INFO is a plist
1180 holding contextual information."
1181 (let ((name (org-element-property :drawer-name drawer))
1182 (width (org-ascii--current-text-width drawer info)))
1183 (funcall (plist-get info :ascii-format-drawer-function)
1184 name contents width)))
1187 ;;;; Dynamic Block
1189 (defun org-ascii-dynamic-block (dynamic-block contents info)
1190 "Transcode a DYNAMIC-BLOCK element from Org to ASCII.
1191 CONTENTS holds the contents of the block. INFO is a plist
1192 holding contextual information."
1193 contents)
1196 ;;;; Entity
1198 (defun org-ascii-entity (entity contents info)
1199 "Transcode an ENTITY object from Org to ASCII.
1200 CONTENTS are the definition itself. INFO is a plist holding
1201 contextual information."
1202 (org-element-property
1203 (intern (concat ":" (symbol-name (plist-get info :ascii-charset))))
1204 entity))
1207 ;;;; Example Block
1209 (defun org-ascii-example-block (example-block contents info)
1210 "Transcode a EXAMPLE-BLOCK element from Org to ASCII.
1211 CONTENTS is nil. INFO is a plist holding contextual information."
1212 (org-ascii--justify-element
1213 (org-ascii--box-string
1214 (org-export-format-code-default example-block info) info)
1215 example-block info))
1218 ;;;; Export Snippet
1220 (defun org-ascii-export-snippet (export-snippet contents info)
1221 "Transcode a EXPORT-SNIPPET object from Org to ASCII.
1222 CONTENTS is nil. INFO is a plist holding contextual information."
1223 (when (eq (org-export-snippet-backend export-snippet) 'ascii)
1224 (org-element-property :value export-snippet)))
1227 ;;;; Export Block
1229 (defun org-ascii-export-block (export-block contents info)
1230 "Transcode a EXPORT-BLOCK element from Org to ASCII.
1231 CONTENTS is nil. INFO is a plist holding contextual information."
1232 (when (string= (org-element-property :type export-block) "ASCII")
1233 (org-ascii--justify-element
1234 (org-element-property :value export-block) export-block info)))
1237 ;;;; Fixed Width
1239 (defun org-ascii-fixed-width (fixed-width contents info)
1240 "Transcode a FIXED-WIDTH element from Org to ASCII.
1241 CONTENTS is nil. INFO is a plist holding contextual information."
1242 (org-ascii--justify-element
1243 (org-ascii--box-string
1244 (org-remove-indentation
1245 (org-element-property :value fixed-width)) info)
1246 fixed-width info))
1249 ;;;; Footnote Definition
1251 ;; Footnote Definitions are ignored. They are compiled at the end of
1252 ;; the document, by `org-ascii-inner-template'.
1255 ;;;; Footnote Reference
1257 (defun org-ascii-footnote-reference (footnote-reference contents info)
1258 "Transcode a FOOTNOTE-REFERENCE element from Org to ASCII.
1259 CONTENTS is nil. INFO is a plist holding contextual information."
1260 (format "[%s]" (org-export-get-footnote-number footnote-reference info)))
1263 ;;;; Headline
1265 (defun org-ascii-headline (headline contents info)
1266 "Transcode a HEADLINE element from Org to ASCII.
1267 CONTENTS holds the contents of the headline. INFO is a plist
1268 holding contextual information."
1269 ;; Don't export footnote section, which will be handled at the end
1270 ;; of the template.
1271 (unless (org-element-property :footnote-section-p headline)
1272 (let* ((low-level-rank (org-export-low-level-p headline info))
1273 (width (org-ascii--current-text-width headline info))
1274 ;; Blank lines between headline and its contents.
1275 ;; `org-ascii-headline-spacing', when set, overwrites
1276 ;; original buffer's spacing.
1277 (pre-blanks
1278 (make-string
1279 (or (car (plist-get info :ascii-headline-spacing))
1280 (org-element-property :pre-blank headline))
1281 ?\n))
1282 ;; Even if HEADLINE has no section, there might be some
1283 ;; links in its title that we shouldn't forget to describe.
1284 (links
1285 (unless (or (eq (caar (org-element-contents headline)) 'section))
1286 (let ((title (org-element-property :title headline)))
1287 (when (consp title)
1288 (org-ascii--describe-links
1289 (org-ascii--unique-links title info) width info))))))
1290 ;; Deep subtree: export it as a list item.
1291 (if low-level-rank
1292 (concat
1293 ;; Bullet.
1294 (let ((bullets (cdr (assq (plist-get info :ascii-charset)
1295 (plist-get info :ascii-bullets)))))
1296 (char-to-string
1297 (nth (mod (1- low-level-rank) (length bullets)) bullets)))
1299 ;; Title.
1300 (org-ascii--build-title headline info width) "\n"
1301 ;; Contents, indented by length of bullet.
1302 pre-blanks
1303 (org-ascii--indent-string
1304 (concat contents
1305 (when (org-string-nw-p links) (concat "\n\n" links)))
1307 ;; Else: Standard headline.
1308 (concat
1309 (org-ascii--build-title headline info width 'underline)
1310 "\n" pre-blanks
1311 (concat (when (org-string-nw-p links) links) contents))))))
1314 ;;;; Horizontal Rule
1316 (defun org-ascii-horizontal-rule (horizontal-rule contents info)
1317 "Transcode an HORIZONTAL-RULE object from Org to ASCII.
1318 CONTENTS is nil. INFO is a plist holding contextual
1319 information."
1320 (let ((text-width (org-ascii--current-text-width horizontal-rule info))
1321 (spec-width
1322 (org-export-read-attribute :attr_ascii horizontal-rule :width)))
1323 (org-ascii--justify-lines
1324 (make-string (if (and spec-width (string-match "^[0-9]+$" spec-width))
1325 (string-to-number spec-width)
1326 text-width)
1327 (if (eq (plist-get info :ascii-charset) 'utf-8) ?― ?-))
1328 text-width 'center)))
1331 ;;;; Inline Src Block
1333 (defun org-ascii-inline-src-block (inline-src-block contents info)
1334 "Transcode an INLINE-SRC-BLOCK element from Org to ASCII.
1335 CONTENTS holds the contents of the item. INFO is a plist holding
1336 contextual information."
1337 (format (plist-get info :ascii-verbatim-format)
1338 (org-element-property :value inline-src-block)))
1341 ;;;; Inlinetask
1343 (defun org-ascii-format-inlinetask-default
1344 (todo type priority name tags contents width inlinetask info)
1345 "Format an inline task element for ASCII export.
1346 See `org-ascii-format-inlinetask-function' for a description
1347 of the parameters."
1348 (let* ((utf8p (eq (plist-get info :ascii-charset) 'utf-8))
1349 (width (or width (plist-get info :ascii-inlinetask-width))))
1350 (org-ascii--indent-string
1351 (concat
1352 ;; Top line, with an additional blank line if not in UTF-8.
1353 (make-string width (if utf8p ?━ ?_)) "\n"
1354 (unless utf8p (concat (make-string width ? ) "\n"))
1355 ;; Add title. Fill it if wider than inlinetask.
1356 (let ((title (org-ascii--build-title inlinetask info width)))
1357 (if (<= (string-width title) width) title
1358 (org-ascii--fill-string title width info)))
1359 "\n"
1360 ;; If CONTENTS is not empty, insert it along with
1361 ;; a separator.
1362 (when (org-string-nw-p contents)
1363 (concat (make-string width (if utf8p ?─ ?-)) "\n" contents))
1364 ;; Bottom line.
1365 (make-string width (if utf8p ?━ ?_)))
1366 ;; Flush the inlinetask to the right.
1367 (- (plist-get info :ascii-text-width) (plist-get info :ascii-global-margin)
1368 (if (not (org-export-get-parent-headline inlinetask)) 0
1369 (plist-get info :ascii-inner-margin))
1370 (org-ascii--current-text-width inlinetask info)))))
1372 (defun org-ascii-inlinetask (inlinetask contents info)
1373 "Transcode an INLINETASK element from Org to ASCII.
1374 CONTENTS holds the contents of the block. INFO is a plist
1375 holding contextual information."
1376 (let ((width (org-ascii--current-text-width inlinetask info)))
1377 (funcall (plist-get info :ascii-format-inlinetask-function)
1378 ;; todo.
1379 (and (plist-get info :with-todo-keywords)
1380 (let ((todo (org-element-property
1381 :todo-keyword inlinetask)))
1382 (and todo (org-export-data todo info))))
1383 ;; todo-type
1384 (org-element-property :todo-type inlinetask)
1385 ;; priority
1386 (and (plist-get info :with-priority)
1387 (org-element-property :priority inlinetask))
1388 ;; title
1389 (org-export-data (org-element-property :title inlinetask) info)
1390 ;; tags
1391 (and (plist-get info :with-tags)
1392 (org-element-property :tags inlinetask))
1393 ;; contents and width
1394 contents width inlinetask info)))
1397 ;;;; Italic
1399 (defun org-ascii-italic (italic contents info)
1400 "Transcode italic from Org to ASCII.
1401 CONTENTS is the text with italic markup. INFO is a plist holding
1402 contextual information."
1403 (format "/%s/" contents))
1406 ;;;; Item
1408 (defun org-ascii-item (item contents info)
1409 "Transcode an ITEM element from Org to ASCII.
1410 CONTENTS holds the contents of the item. INFO is a plist holding
1411 contextual information."
1412 (let* ((utf8p (eq (plist-get info :ascii-charset) 'utf-8))
1413 (checkbox (org-ascii--checkbox item info))
1414 (list-type (org-element-property :type (org-export-get-parent item)))
1415 (bullet
1416 ;; First parent of ITEM is always the plain-list. Get
1417 ;; `:type' property from it.
1418 (org-list-bullet-string
1419 (case list-type
1420 (descriptive
1421 (concat checkbox
1422 (org-export-data (org-element-property :tag item) info)
1423 ": "))
1424 (ordered
1425 ;; Return correct number for ITEM, paying attention to
1426 ;; counters.
1427 (let* ((struct (org-element-property :structure item))
1428 (bul (org-element-property :bullet item))
1429 (num (number-to-string
1430 (car (last (org-list-get-item-number
1431 (org-element-property :begin item)
1432 struct
1433 (org-list-prevs-alist struct)
1434 (org-list-parents-alist struct)))))))
1435 (replace-regexp-in-string "[0-9]+" num bul)))
1436 (t (let ((bul (org-element-property :bullet item)))
1437 ;; Change bullets into more visible form if UTF-8 is active.
1438 (if (not utf8p) bul
1439 (replace-regexp-in-string
1440 "-" "•"
1441 (replace-regexp-in-string
1442 "+" "⁃"
1443 (replace-regexp-in-string "*" "‣" bul))))))))))
1444 (concat
1445 bullet
1446 (unless (eq list-type 'descriptive) checkbox)
1447 ;; Contents: Pay attention to indentation. Note: check-boxes are
1448 ;; already taken care of at the paragraph level so they don't
1449 ;; interfere with indentation.
1450 (let ((contents (org-ascii--indent-string contents (string-width bullet))))
1451 (if (eq (org-element-type (car (org-element-contents item))) 'paragraph)
1452 (org-trim contents)
1453 (concat "\n" contents))))))
1456 ;;;; Keyword
1458 (defun org-ascii-keyword (keyword contents info)
1459 "Transcode a KEYWORD element from Org to ASCII.
1460 CONTENTS is nil. INFO is a plist holding contextual
1461 information."
1462 (let ((key (org-element-property :key keyword)))
1463 (cond
1464 ((string= key "ASCII")
1465 (org-ascii--justify-element
1466 (org-element-property :value keyword) keyword info))
1467 ((string= key "TOC")
1468 (org-ascii--justify-element
1469 (let ((value (downcase (org-element-property :value keyword))))
1470 (cond
1471 ((string-match "\\<headlines\\>" value)
1472 (let ((depth (or (and (string-match "[0-9]+" value)
1473 (string-to-number (match-string 0 value)))
1474 (plist-get info :with-toc))))
1475 (org-ascii--build-toc
1476 info (and (wholenump depth) depth) keyword)))
1477 ((string= "tables" value)
1478 (org-ascii--list-tables keyword info))
1479 ((string= "listings" value)
1480 (org-ascii--list-listings keyword info))))
1481 keyword info)))))
1484 ;;;; Latex Environment
1486 (defun org-ascii-latex-environment (latex-environment contents info)
1487 "Transcode a LATEX-ENVIRONMENT element from Org to ASCII.
1488 CONTENTS is nil. INFO is a plist holding contextual
1489 information."
1490 (when (plist-get info :with-latex)
1491 (org-ascii--justify-element
1492 (org-remove-indentation (org-element-property :value latex-environment))
1493 latex-environment info)))
1496 ;;;; Latex Fragment
1498 (defun org-ascii-latex-fragment (latex-fragment contents info)
1499 "Transcode a LATEX-FRAGMENT object from Org to ASCII.
1500 CONTENTS is nil. INFO is a plist holding contextual
1501 information."
1502 (when (plist-get info :with-latex)
1503 (org-element-property :value latex-fragment)))
1506 ;;;; Line Break
1508 (defun org-ascii-line-break (line-break contents info)
1509 "Transcode a LINE-BREAK object from Org to ASCII.
1510 CONTENTS is nil. INFO is a plist holding contextual
1511 information." hard-newline)
1514 ;;;; Link
1516 (defun org-ascii-link (link desc info)
1517 "Transcode a LINK object from Org to ASCII.
1519 DESC is the description part of the link, or the empty string.
1520 INFO is a plist holding contextual information."
1521 (let ((type (org-element-property :type link)))
1522 (cond
1523 ((org-export-custom-protocol-maybe link desc info))
1524 ((string= type "coderef")
1525 (let ((ref (org-element-property :path link)))
1526 (format (org-export-get-coderef-format ref desc)
1527 (org-export-resolve-coderef ref info))))
1528 ;; Do not apply a special syntax on radio links. Though, use
1529 ;; transcoded target's contents as output.
1530 ((string= type "radio") desc)
1531 ;; Do not apply a special syntax on fuzzy links pointing to
1532 ;; targets.
1533 ((string= type "fuzzy")
1534 (let ((destination (org-export-resolve-fuzzy-link link info)))
1535 (if (org-string-nw-p desc) desc
1536 (when destination
1537 (let ((number
1538 (org-export-get-ordinal
1539 destination info nil 'org-ascii--has-caption-p)))
1540 (if number
1541 (if (atom number) (number-to-string number)
1542 (mapconcat #'number-to-string number "."))
1543 ;; Unnumbered headline.
1544 (when (eq 'headline (org-element-type destination))
1545 (format "[%s]"
1546 (org-export-data
1547 (org-element-property :title destination)
1548 info)))))))))
1550 (let ((raw-link (org-element-property :raw-link link)))
1551 (if (not (org-string-nw-p desc)) (format "[%s]" raw-link)
1552 (concat (format "[%s]" desc)
1553 (and (not (plist-get info :ascii-links-to-notes))
1554 (format " (%s)" raw-link)))))))))
1557 ;;;; Node Properties
1559 (defun org-ascii-node-property (node-property contents info)
1560 "Transcode a NODE-PROPERTY element from Org to ASCII.
1561 CONTENTS is nil. INFO is a plist holding contextual
1562 information."
1563 (format "%s:%s"
1564 (org-element-property :key node-property)
1565 (let ((value (org-element-property :value node-property)))
1566 (if value (concat " " value) ""))))
1569 ;;;; Paragraph
1571 (defun org-ascii-paragraph (paragraph contents info)
1572 "Transcode a PARAGRAPH element from Org to ASCII.
1573 CONTENTS is the contents of the paragraph, as a string. INFO is
1574 the plist used as a communication channel."
1575 (org-ascii--justify-element
1576 (let ((indented-line-width (plist-get info :ascii-indented-line-width)))
1577 (if (not (wholenump indented-line-width)) contents
1578 (concat
1579 ;; Do not indent first paragraph in a section.
1580 (unless (and (not (org-export-get-previous-element paragraph info))
1581 (eq (org-element-type (org-export-get-parent paragraph))
1582 'section))
1583 (make-string indented-line-width ?\s))
1584 (replace-regexp-in-string "\\`[ \t]+" "" contents))))
1585 paragraph info))
1588 ;;;; Plain List
1590 (defun org-ascii-plain-list (plain-list contents info)
1591 "Transcode a PLAIN-LIST element from Org to ASCII.
1592 CONTENTS is the contents of the list. INFO is a plist holding
1593 contextual information."
1594 (let ((margin (plist-get info :ascii-list-margin)))
1595 (if (or (< margin 1)
1596 (eq (org-element-type (org-export-get-parent plain-list)) 'item))
1597 contents
1598 (org-ascii--indent-string contents margin))))
1601 ;;;; Plain Text
1603 (defun org-ascii-plain-text (text info)
1604 "Transcode a TEXT string from Org to ASCII.
1605 INFO is a plist used as a communication channel."
1606 (let ((utf8p (eq (plist-get info :ascii-charset) 'utf-8)))
1607 (when (and utf8p (plist-get info :with-smart-quotes))
1608 (setq text (org-export-activate-smart-quotes text :utf-8 info)))
1609 (if (not (plist-get info :with-special-strings)) text
1610 (setq text (replace-regexp-in-string "\\\\-" "" text))
1611 (if (not utf8p) text
1612 ;; Usual replacements in utf-8 with proper option set.
1613 (replace-regexp-in-string
1614 "\\.\\.\\." "…"
1615 (replace-regexp-in-string
1616 "--" "–"
1617 (replace-regexp-in-string "---" "—" text)))))))
1620 ;;;; Planning
1622 (defun org-ascii-planning (planning contents info)
1623 "Transcode a PLANNING element from Org to ASCII.
1624 CONTENTS is nil. INFO is a plist used as a communication
1625 channel."
1626 (org-ascii--justify-element
1627 (mapconcat
1628 #'identity
1629 (delq nil
1630 (list (let ((closed (org-element-property :closed planning)))
1631 (when closed
1632 (concat org-closed-string " "
1633 (org-timestamp-translate closed))))
1634 (let ((deadline (org-element-property :deadline planning)))
1635 (when deadline
1636 (concat org-deadline-string " "
1637 (org-timestamp-translate deadline))))
1638 (let ((scheduled (org-element-property :scheduled planning)))
1639 (when scheduled
1640 (concat org-scheduled-string " "
1641 (org-timestamp-translate scheduled))))))
1642 " ")
1643 planning info))
1646 ;;;; Property Drawer
1648 (defun org-ascii-property-drawer (property-drawer contents info)
1649 "Transcode a PROPERTY-DRAWER element from Org to ASCII.
1650 CONTENTS holds the contents of the drawer. INFO is a plist
1651 holding contextual information."
1652 (and (org-string-nw-p contents)
1653 (org-ascii--justify-element contents property-drawer info)))
1656 ;;;; Quote Block
1658 (defun org-ascii-quote-block (quote-block contents info)
1659 "Transcode a QUOTE-BLOCK element from Org to ASCII.
1660 CONTENTS holds the contents of the block. INFO is a plist
1661 holding contextual information."
1662 (org-ascii--indent-string contents (plist-get info :ascii-quote-margin)))
1665 ;;;; Radio Target
1667 (defun org-ascii-radio-target (radio-target contents info)
1668 "Transcode a RADIO-TARGET object from Org to ASCII.
1669 CONTENTS is the contents of the target. INFO is a plist holding
1670 contextual information."
1671 contents)
1674 ;;;; Section
1676 (defun org-ascii-section (section contents info)
1677 "Transcode a SECTION element from Org to ASCII.
1678 CONTENTS is the contents of the section. INFO is a plist holding
1679 contextual information."
1680 (org-ascii--indent-string
1681 (concat
1682 contents
1683 (when (plist-get info :ascii-links-to-notes)
1684 ;; Add list of links at the end of SECTION.
1685 (let ((links (org-ascii--describe-links
1686 (org-ascii--unique-links section info)
1687 (org-ascii--current-text-width section info) info)))
1688 ;; Separate list of links and section contents.
1689 (when (org-string-nw-p links) (concat "\n\n" links)))))
1690 ;; Do not apply inner margin if parent headline is low level.
1691 (let ((headline (org-export-get-parent-headline section)))
1692 (if (or (not headline) (org-export-low-level-p headline info)) 0
1693 (plist-get info :ascii-inner-margin)))))
1696 ;;;; Special Block
1698 (defun org-ascii-special-block (special-block contents info)
1699 "Transcode a SPECIAL-BLOCK element from Org to ASCII.
1700 CONTENTS holds the contents of the block. INFO is a plist
1701 holding contextual information."
1702 ;; "JUSTIFYLEFT" and "JUSTFYRIGHT" have already been taken care of
1703 ;; at a lower level. There is no other special block type to
1704 ;; handle.
1705 contents)
1708 ;;;; Src Block
1710 (defun org-ascii-src-block (src-block contents info)
1711 "Transcode a SRC-BLOCK element from Org to ASCII.
1712 CONTENTS holds the contents of the item. INFO is a plist holding
1713 contextual information."
1714 (let ((caption (org-ascii--build-caption src-block info))
1715 (caption-above-p (plist-get info :ascii-caption-above))
1716 (code (org-export-format-code-default src-block info)))
1717 (if (equal code "") ""
1718 (org-ascii--justify-element
1719 (concat
1720 (and caption caption-above-p (concat caption "\n"))
1721 (org-ascii--box-string code info)
1722 (and caption (not caption-above-p) (concat "\n" caption)))
1723 src-block info))))
1726 ;;;; Statistics Cookie
1728 (defun org-ascii-statistics-cookie (statistics-cookie contents info)
1729 "Transcode a STATISTICS-COOKIE object from Org to ASCII.
1730 CONTENTS is nil. INFO is a plist holding contextual information."
1731 (org-element-property :value statistics-cookie))
1734 ;;;; Subscript
1736 (defun org-ascii-subscript (subscript contents info)
1737 "Transcode a SUBSCRIPT object from Org to ASCII.
1738 CONTENTS is the contents of the object. INFO is a plist holding
1739 contextual information."
1740 (if (org-element-property :use-brackets-p subscript)
1741 (format "_{%s}" contents)
1742 (format "_%s" contents)))
1745 ;;;; Superscript
1747 (defun org-ascii-superscript (superscript contents info)
1748 "Transcode a SUPERSCRIPT object from Org to ASCII.
1749 CONTENTS is the contents of the object. INFO is a plist holding
1750 contextual information."
1751 (if (org-element-property :use-brackets-p superscript)
1752 (format "^{%s}" contents)
1753 (format "^%s" contents)))
1756 ;;;; Strike-through
1758 (defun org-ascii-strike-through (strike-through contents info)
1759 "Transcode STRIKE-THROUGH from Org to ASCII.
1760 CONTENTS is text with strike-through markup. INFO is a plist
1761 holding contextual information."
1762 (format "+%s+" contents))
1765 ;;;; Table
1767 (defun org-ascii-table (table contents info)
1768 "Transcode a TABLE element from Org to ASCII.
1769 CONTENTS is the contents of the table. INFO is a plist holding
1770 contextual information."
1771 (let ((caption (org-ascii--build-caption table info))
1772 (caption-above-p (plist-get info :ascii-caption-above)))
1773 (org-ascii--justify-element
1774 (concat
1775 ;; Possibly add a caption string above.
1776 (and caption caption-above-p (concat caption "\n"))
1777 ;; Insert table. Note: "table.el" tables are left unmodified.
1778 (cond ((eq (org-element-property :type table) 'org) contents)
1779 ((and (plist-get info :ascii-table-use-ascii-art)
1780 (eq (plist-get info :ascii-charset) 'utf-8)
1781 (require 'ascii-art-to-unicode nil t))
1782 (with-temp-buffer
1783 (insert (org-remove-indentation
1784 (org-element-property :value table)))
1785 (goto-char (point-min))
1786 (aa2u)
1787 (goto-char (point-max))
1788 (skip-chars-backward " \r\t\n")
1789 (buffer-substring (point-min) (point))))
1790 (t (org-remove-indentation (org-element-property :value table))))
1791 ;; Possible add a caption string below.
1792 (and (not caption-above-p) caption))
1793 table info)))
1796 ;;;; Table Cell
1798 (defun org-ascii--table-cell-width (table-cell info)
1799 "Return width of TABLE-CELL.
1801 INFO is a plist used as a communication channel.
1803 Width of a cell is determined either by a width cookie in the
1804 same column as the cell, or by the maximum cell's length in that
1805 column.
1807 When `org-ascii-table-widen-columns' is non-nil, width cookies
1808 are ignored."
1809 (let* ((row (org-export-get-parent table-cell))
1810 (table (org-export-get-parent row))
1811 (col (let ((cells (org-element-contents row)))
1812 (- (length cells) (length (memq table-cell cells)))))
1813 (cache
1814 (or (plist-get info :ascii-table-cell-width-cache)
1815 (plist-get (setq info
1816 (plist-put info :ascii-table-cell-width-cache
1817 (make-hash-table :test 'equal)))
1818 :ascii-table-cell-width-cache)))
1819 (key (cons table col))
1820 (widenp (plist-get info :ascii-table-widen-columns)))
1821 (or (gethash key cache)
1822 (puthash
1824 (let ((cookie-width (org-export-table-cell-width table-cell info)))
1825 (or (and (not widenp) cookie-width)
1826 (let ((contents-width
1827 (let ((max-width 0))
1828 (org-element-map table 'table-row
1829 (lambda (row)
1830 (setq max-width
1831 (max (string-width
1832 (org-export-data
1833 (org-element-contents
1834 (elt (org-element-contents row) col))
1835 info))
1836 max-width)))
1837 info)
1838 max-width)))
1839 (cond ((not cookie-width) contents-width)
1840 (widenp (max cookie-width contents-width))
1841 (t cookie-width)))))
1842 cache))))
1844 (defun org-ascii-table-cell (table-cell contents info)
1845 "Transcode a TABLE-CELL object from Org to ASCII.
1846 CONTENTS is the cell contents. INFO is a plist used as
1847 a communication channel."
1848 ;; Determine column width. When `org-ascii-table-widen-columns'
1849 ;; is nil and some width cookie has set it, use that value.
1850 ;; Otherwise, compute the maximum width among transcoded data of
1851 ;; each cell in the column.
1852 (let ((width (org-ascii--table-cell-width table-cell info)))
1853 ;; When contents are too large, truncate them.
1854 (unless (or (plist-get info :ascii-table-widen-columns)
1855 (<= (string-width (or contents "")) width))
1856 (setq contents (concat (substring contents 0 (- width 2)) "=>")))
1857 ;; Align contents correctly within the cell.
1858 (let* ((indent-tabs-mode nil)
1859 (data
1860 (when contents
1861 (org-ascii--justify-lines
1862 contents width
1863 (org-export-table-cell-alignment table-cell info)))))
1864 (setq contents
1865 (concat data
1866 (make-string (- width (string-width (or data ""))) ?\s))))
1867 ;; Return cell.
1868 (concat (format " %s " contents)
1869 (when (memq 'right (org-export-table-cell-borders table-cell info))
1870 (if (eq (plist-get info :ascii-charset) 'utf-8) "│" "|")))))
1873 ;;;; Table Row
1875 (defun org-ascii-table-row (table-row contents info)
1876 "Transcode a TABLE-ROW element from Org to ASCII.
1877 CONTENTS is the row contents. INFO is a plist used as
1878 a communication channel."
1879 (when (eq (org-element-property :type table-row) 'standard)
1880 (let ((build-hline
1881 (function
1882 (lambda (lcorner horiz vert rcorner)
1883 (concat
1884 (apply
1885 'concat
1886 (org-element-map table-row 'table-cell
1887 (lambda (cell)
1888 (let ((width (org-ascii--table-cell-width cell info))
1889 (borders (org-export-table-cell-borders cell info)))
1890 (concat
1891 ;; In order to know if CELL starts the row, do
1892 ;; not compare it with the first cell in the
1893 ;; row as there might be a special column.
1894 ;; Instead, compare it with first exportable
1895 ;; cell, obtained with `org-element-map'.
1896 (when (and (memq 'left borders)
1897 (eq (org-element-map table-row 'table-cell
1898 'identity info t)
1899 cell))
1900 lcorner)
1901 (make-string (+ 2 width) (string-to-char horiz))
1902 (cond
1903 ((not (memq 'right borders)) nil)
1904 ((eq (car (last (org-element-contents table-row))) cell)
1905 rcorner)
1906 (t vert)))))
1907 info)) "\n"))))
1908 (utf8p (eq (plist-get info :ascii-charset) 'utf-8))
1909 (borders (org-export-table-cell-borders
1910 (org-element-map table-row 'table-cell 'identity info t)
1911 info)))
1912 (concat (cond
1913 ((and (memq 'top borders) (or utf8p (memq 'above borders)))
1914 (if utf8p (funcall build-hline "┍" "━" "┯" "┑")
1915 (funcall build-hline "+" "-" "+" "+")))
1916 ((memq 'above borders)
1917 (if utf8p (funcall build-hline "├" "─" "┼" "┤")
1918 (funcall build-hline "+" "-" "+" "+"))))
1919 (when (memq 'left borders) (if utf8p "│" "|"))
1920 contents "\n"
1921 (when (and (memq 'bottom borders) (or utf8p (memq 'below borders)))
1922 (if utf8p (funcall build-hline "┕" "━" "┷" "┙")
1923 (funcall build-hline "+" "-" "+" "+")))))))
1926 ;;;; Timestamp
1928 (defun org-ascii-timestamp (timestamp contents info)
1929 "Transcode a TIMESTAMP object from Org to ASCII.
1930 CONTENTS is nil. INFO is a plist holding contextual information."
1931 (org-ascii-plain-text (org-timestamp-translate timestamp) info))
1934 ;;;; Underline
1936 (defun org-ascii-underline (underline contents info)
1937 "Transcode UNDERLINE from Org to ASCII.
1938 CONTENTS is the text with underline markup. INFO is a plist
1939 holding contextual information."
1940 (format "_%s_" contents))
1943 ;;;; Verbatim
1945 (defun org-ascii-verbatim (verbatim contents info)
1946 "Return a VERBATIM object from Org to ASCII.
1947 CONTENTS is nil. INFO is a plist holding contextual information."
1948 (format (plist-get info :ascii-verbatim-format)
1949 (org-element-property :value verbatim)))
1952 ;;;; Verse Block
1954 (defun org-ascii-verse-block (verse-block contents info)
1955 "Transcode a VERSE-BLOCK element from Org to ASCII.
1956 CONTENTS is verse block contents. INFO is a plist holding
1957 contextual information."
1958 (let ((verse-width (org-ascii--current-text-width verse-block info)))
1959 (org-ascii--indent-string
1960 (org-ascii--justify-element contents verse-block info)
1961 (plist-get info :ascii-quote-margin))))
1965 ;;; Filters
1967 (defun org-ascii-filter-headline-blank-lines (headline back-end info)
1968 "Filter controlling number of blank lines after a headline.
1970 HEADLINE is a string representing a transcoded headline.
1971 BACK-END is symbol specifying back-end used for export. INFO is
1972 plist containing the communication channel.
1974 This function only applies to `ascii' back-end. See
1975 `org-ascii-headline-spacing' for information."
1976 (let ((headline-spacing (plist-get info :ascii-headline-spacing)))
1977 (if (not headline-spacing) headline
1978 (let ((blanks (make-string (1+ (cdr headline-spacing)) ?\n)))
1979 (replace-regexp-in-string "\n\\(?:\n[ \t]*\\)*\\'" blanks headline)))))
1981 (defun org-ascii-filter-paragraph-spacing (tree back-end info)
1982 "Filter controlling number of blank lines between paragraphs.
1984 TREE is the parse tree. BACK-END is the symbol specifying
1985 back-end used for export. INFO is a plist used as
1986 a communication channel.
1988 See `org-ascii-paragraph-spacing' for information."
1989 (let ((paragraph-spacing (plist-get info :ascii-paragraph-spacing)))
1990 (when (wholenump paragraph-spacing)
1991 (org-element-map tree 'paragraph
1992 (lambda (p)
1993 (when (eq (org-element-type (org-export-get-next-element p info))
1994 'paragraph)
1995 (org-element-put-property p :post-blank paragraph-spacing))))))
1996 tree)
1998 (defun org-ascii-filter-comment-spacing (tree backend info)
1999 "Filter removing blank lines between comments.
2000 TREE is the parse tree. BACK-END is the symbol specifying
2001 back-end used for export. INFO is a plist used as
2002 a communication channel."
2003 (org-element-map tree '(comment comment-block)
2004 (lambda (c)
2005 (when (memq (org-element-type (org-export-get-next-element c info))
2006 '(comment comment-block))
2007 (org-element-put-property c :post-blank 0))))
2008 tree)
2012 ;;; End-user functions
2014 ;;;###autoload
2015 (defun org-ascii-export-as-ascii
2016 (&optional async subtreep visible-only body-only ext-plist)
2017 "Export current buffer to a text buffer.
2019 If narrowing is active in the current buffer, only export its
2020 narrowed part.
2022 If a region is active, export that region.
2024 A non-nil optional argument ASYNC means the process should happen
2025 asynchronously. The resulting buffer should be accessible
2026 through the `org-export-stack' interface.
2028 When optional argument SUBTREEP is non-nil, export the sub-tree
2029 at point, extracting information from the headline properties
2030 first.
2032 When optional argument VISIBLE-ONLY is non-nil, don't export
2033 contents of hidden elements.
2035 When optional argument BODY-ONLY is non-nil, strip title and
2036 table of contents from output.
2038 EXT-PLIST, when provided, is a property list with external
2039 parameters overriding Org default settings, but still inferior to
2040 file-local settings.
2042 Export is done in a buffer named \"*Org ASCII Export*\", which
2043 will be displayed when `org-export-show-temporary-export-buffer'
2044 is non-nil."
2045 (interactive)
2046 (org-export-to-buffer 'ascii "*Org ASCII Export*"
2047 async subtreep visible-only body-only ext-plist (lambda () (text-mode))))
2049 ;;;###autoload
2050 (defun org-ascii-export-to-ascii
2051 (&optional async subtreep visible-only body-only ext-plist)
2052 "Export current buffer to a text file.
2054 If narrowing is active in the current buffer, only export its
2055 narrowed part.
2057 If a region is active, export that region.
2059 A non-nil optional argument ASYNC means the process should happen
2060 asynchronously. The resulting file should be accessible through
2061 the `org-export-stack' interface.
2063 When optional argument SUBTREEP is non-nil, export the sub-tree
2064 at point, extracting information from the headline properties
2065 first.
2067 When optional argument VISIBLE-ONLY is non-nil, don't export
2068 contents of hidden elements.
2070 When optional argument BODY-ONLY is non-nil, strip title and
2071 table of contents from output.
2073 EXT-PLIST, when provided, is a property list with external
2074 parameters overriding Org default settings, but still inferior to
2075 file-local settings.
2077 Return output file's name."
2078 (interactive)
2079 (let ((file (org-export-output-file-name ".txt" subtreep)))
2080 (org-export-to-file 'ascii file
2081 async subtreep visible-only body-only ext-plist)))
2083 ;;;###autoload
2084 (defun org-ascii-publish-to-ascii (plist filename pub-dir)
2085 "Publish an Org file to ASCII.
2087 FILENAME is the filename of the Org file to be published. PLIST
2088 is the property list for the given project. PUB-DIR is the
2089 publishing directory.
2091 Return output file name."
2092 (org-publish-org-to
2093 'ascii filename ".txt" `(:ascii-charset ascii ,@plist) pub-dir))
2095 ;;;###autoload
2096 (defun org-ascii-publish-to-latin1 (plist filename pub-dir)
2097 "Publish an Org file to Latin-1.
2099 FILENAME is the filename of the Org file to be published. PLIST
2100 is the property list for the given project. PUB-DIR is the
2101 publishing directory.
2103 Return output file name."
2104 (org-publish-org-to
2105 'ascii filename ".txt" `(:ascii-charset latin1 ,@plist) pub-dir))
2107 ;;;###autoload
2108 (defun org-ascii-publish-to-utf8 (plist filename pub-dir)
2109 "Publish an org file to UTF-8.
2111 FILENAME is the filename of the Org file to be published. PLIST
2112 is the property list for the given project. PUB-DIR is the
2113 publishing directory.
2115 Return output file name."
2116 (org-publish-org-to
2117 'ascii filename ".txt" `(:ascii-charset utf-8 ,@plist) pub-dir))
2120 (provide 'ox-ascii)
2122 ;; Local variables:
2123 ;; generated-autoload-file: "org-loaddefs.el"
2124 ;; coding: utf-8-emacs
2125 ;; End:
2127 ;;; ox-ascii.el ends here