Merge branch 'maint'
[org-mode/org-tableheadings.git] / lisp / ox-ascii.el
blob6c707f8d0bf1a276b5268946ce780ec419e80a2a
1 ;;; ox-ascii.el --- ASCII Back-End for Org Export Engine -*- lexical-binding: t; -*-
3 ;; Copyright (C) 2012-2016 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 modifying preferred charset
39 ;; through a buffer keyword or an option item, but, since the property
40 ;; will appear in communication channel nonetheless, it allows
41 ;; overriding `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 (drawer . org-ascii-drawer)
53 (dynamic-block . org-ascii-dynamic-block)
54 (entity . org-ascii-entity)
55 (example-block . org-ascii-example-block)
56 (export-block . org-ascii-export-block)
57 (export-snippet . org-ascii-export-snippet)
58 (fixed-width . org-ascii-fixed-width)
59 (footnote-reference . org-ascii-footnote-reference)
60 (headline . org-ascii-headline)
61 (horizontal-rule . org-ascii-horizontal-rule)
62 (inline-src-block . org-ascii-inline-src-block)
63 (inlinetask . org-ascii-inlinetask)
64 (inner-template . org-ascii-inner-template)
65 (italic . org-ascii-italic)
66 (item . org-ascii-item)
67 (keyword . org-ascii-keyword)
68 (latex-environment . org-ascii-latex-environment)
69 (latex-fragment . org-ascii-latex-fragment)
70 (line-break . org-ascii-line-break)
71 (link . org-ascii-link)
72 (node-property . org-ascii-node-property)
73 (paragraph . org-ascii-paragraph)
74 (plain-list . org-ascii-plain-list)
75 (plain-text . org-ascii-plain-text)
76 (planning . org-ascii-planning)
77 (property-drawer . org-ascii-property-drawer)
78 (quote-block . org-ascii-quote-block)
79 (radio-target . org-ascii-radio-target)
80 (section . org-ascii-section)
81 (special-block . org-ascii-special-block)
82 (src-block . org-ascii-src-block)
83 (statistics-cookie . org-ascii-statistics-cookie)
84 (strike-through . org-ascii-strike-through)
85 (subscript . org-ascii-subscript)
86 (superscript . org-ascii-superscript)
87 (table . org-ascii-table)
88 (table-cell . org-ascii-table-cell)
89 (table-row . org-ascii-table-row)
90 (target . org-ascii-target)
91 (template . org-ascii-template)
92 (timestamp . org-ascii-timestamp)
93 (underline . org-ascii-underline)
94 (verbatim . org-ascii-verbatim)
95 (verse-block . org-ascii-verse-block))
96 :menu-entry
97 '(?t "Export to Plain Text"
98 ((?A "As ASCII buffer"
99 (lambda (a s v b)
100 (org-ascii-export-as-ascii a s v b '(:ascii-charset ascii))))
101 (?a "As ASCII file"
102 (lambda (a s v b)
103 (org-ascii-export-to-ascii a s v b '(:ascii-charset ascii))))
104 (?L "As Latin1 buffer"
105 (lambda (a s v b)
106 (org-ascii-export-as-ascii a s v b '(:ascii-charset latin1))))
107 (?l "As Latin1 file"
108 (lambda (a s v b)
109 (org-ascii-export-to-ascii a s v b '(:ascii-charset latin1))))
110 (?U "As UTF-8 buffer"
111 (lambda (a s v b)
112 (org-ascii-export-as-ascii a s v b '(:ascii-charset utf-8))))
113 (?u "As UTF-8 file"
114 (lambda (a s v b)
115 (org-ascii-export-to-ascii a s v b '(:ascii-charset utf-8))))))
116 :filters-alist '((:filter-headline . org-ascii-filter-headline-blank-lines)
117 (:filter-parse-tree org-ascii-filter-paragraph-spacing
118 org-ascii-filter-comment-spacing)
119 (:filter-section . org-ascii-filter-headline-blank-lines))
120 :options-alist
121 '((:subtitle "SUBTITLE" nil nil parse)
122 (:ascii-bullets nil nil org-ascii-bullets)
123 (:ascii-caption-above nil nil org-ascii-caption-above)
124 (:ascii-charset nil nil org-ascii-charset)
125 (:ascii-global-margin nil nil org-ascii-global-margin)
126 (:ascii-format-drawer-function nil nil org-ascii-format-drawer-function)
127 (:ascii-format-inlinetask-function
128 nil nil org-ascii-format-inlinetask-function)
129 (:ascii-headline-spacing nil nil org-ascii-headline-spacing)
130 (:ascii-indented-line-width nil nil org-ascii-indented-line-width)
131 (:ascii-inlinetask-width nil nil org-ascii-inlinetask-width)
132 (:ascii-inner-margin nil nil org-ascii-inner-margin)
133 (:ascii-links-to-notes nil nil org-ascii-links-to-notes)
134 (:ascii-list-margin nil nil org-ascii-list-margin)
135 (:ascii-paragraph-spacing nil nil org-ascii-paragraph-spacing)
136 (:ascii-quote-margin nil nil org-ascii-quote-margin)
137 (:ascii-table-keep-all-vertical-lines
138 nil nil org-ascii-table-keep-all-vertical-lines)
139 (:ascii-table-use-ascii-art nil nil org-ascii-table-use-ascii-art)
140 (:ascii-table-widen-columns nil nil org-ascii-table-widen-columns)
141 (:ascii-text-width nil nil org-ascii-text-width)
142 (:ascii-underline nil nil org-ascii-underline)
143 (:ascii-verbatim-format nil nil org-ascii-verbatim-format)))
147 ;;; User Configurable Variables
149 (defgroup org-export-ascii nil
150 "Options for exporting Org mode files to ASCII."
151 :tag "Org Export ASCII"
152 :group 'org-export)
154 (defcustom org-ascii-text-width 72
155 "Maximum width of exported text.
156 This number includes margin size, as set in
157 `org-ascii-global-margin'."
158 :group 'org-export-ascii
159 :version "24.4"
160 :package-version '(Org . "8.0")
161 :type 'integer)
163 (defcustom org-ascii-global-margin 0
164 "Width of the left margin, in number of characters."
165 :group 'org-export-ascii
166 :version "24.4"
167 :package-version '(Org . "8.0")
168 :type 'integer)
170 (defcustom org-ascii-inner-margin 2
171 "Width of the inner margin, in number of characters.
172 Inner margin is applied between each headline."
173 :group 'org-export-ascii
174 :version "24.4"
175 :package-version '(Org . "8.0")
176 :type 'integer)
178 (defcustom org-ascii-quote-margin 6
179 "Width of margin used for quoting text, in characters.
180 This margin is applied on both sides of the text."
181 :group 'org-export-ascii
182 :version "24.4"
183 :package-version '(Org . "8.0")
184 :type 'integer)
186 (defcustom org-ascii-list-margin 0
187 "Width of margin used for plain lists, in characters.
188 This margin applies to top level list only, not to its
189 sub-lists."
190 :group 'org-export-ascii
191 :version "25.1"
192 :package-version '(Org . "8.3")
193 :type 'integer)
195 (defcustom org-ascii-inlinetask-width 30
196 "Width of inline tasks, in number of characters.
197 This number ignores any margin."
198 :group 'org-export-ascii
199 :version "24.4"
200 :package-version '(Org . "8.0")
201 :type 'integer)
203 (defcustom org-ascii-headline-spacing '(1 . 2)
204 "Number of blank lines inserted around headlines.
206 This variable can be set to a cons cell. In that case, its car
207 represents the number of blank lines present before headline
208 contents whereas its cdr reflects the number of blank lines after
209 contents.
211 A nil value replicates the number of blank lines found in the
212 original Org buffer at the same place."
213 :group 'org-export-ascii
214 :version "24.4"
215 :package-version '(Org . "8.0")
216 :type '(choice
217 (const :tag "Replicate original spacing" nil)
218 (cons :tag "Set a uniform spacing"
219 (integer :tag "Number of blank lines before contents")
220 (integer :tag "Number of blank lines after contents"))))
222 (defcustom org-ascii-indented-line-width 'auto
223 "Additional indentation width for the first line in a paragraph.
224 If the value is an integer, indent the first line of each
225 paragraph by this width, unless it is located at the beginning of
226 a section, in which case indentation is removed from that line.
227 If it is the symbol `auto' preserve indentation from original
228 document."
229 :group 'org-export-ascii
230 :version "24.4"
231 :package-version '(Org . "8.0")
232 :type '(choice
233 (integer :tag "Number of white spaces characters")
234 (const :tag "Preserve original width" auto)))
236 (defcustom org-ascii-paragraph-spacing 'auto
237 "Number of white lines between paragraphs.
238 If the value is an integer, add this number of blank lines
239 between contiguous paragraphs. If is it the symbol `auto', keep
240 the same number of blank lines as in the original document."
241 :group 'org-export-ascii
242 :version "24.4"
243 :package-version '(Org . "8.0")
244 :type '(choice
245 (integer :tag "Number of blank lines")
246 (const :tag "Preserve original spacing" auto)))
248 (defcustom org-ascii-charset 'ascii
249 "The charset allowed to represent various elements and objects.
250 Possible values are:
251 `ascii' Only use plain ASCII characters
252 `latin1' Include Latin-1 characters
253 `utf-8' Use all UTF-8 characters"
254 :group 'org-export-ascii
255 :version "24.4"
256 :package-version '(Org . "8.0")
257 :type '(choice
258 (const :tag "ASCII" ascii)
259 (const :tag "Latin-1" latin1)
260 (const :tag "UTF-8" utf-8)))
262 (defcustom org-ascii-underline '((ascii ?= ?~ ?-)
263 (latin1 ?= ?~ ?-)
264 (utf-8 ?═ ?─ ?╌ ?┄ ?┈))
265 "Characters for underlining headings in ASCII export.
267 Alist whose key is a symbol among `ascii', `latin1' and `utf-8'
268 and whose value is a list of characters.
270 For each supported charset, this variable associates a sequence
271 of underline characters. In a sequence, the characters will be
272 used in order for headlines level 1, 2, ... If no character is
273 available for a given level, the headline won't be underlined."
274 :group 'org-export-ascii
275 :version "24.4"
276 :package-version '(Org . "8.0")
277 :type '(list
278 (cons :tag "Underline characters sequence"
279 (const :tag "ASCII charset" ascii)
280 (repeat character))
281 (cons :tag "Underline characters sequence"
282 (const :tag "Latin-1 charset" latin1)
283 (repeat character))
284 (cons :tag "Underline characters sequence"
285 (const :tag "UTF-8 charset" utf-8)
286 (repeat character))))
288 (defcustom org-ascii-bullets '((ascii ?* ?+ ?-)
289 (latin1 ?§ ?¶)
290 (utf-8 ?◊))
291 "Bullet characters for headlines converted to lists in ASCII export.
293 Alist whose key is a symbol among `ascii', `latin1' and `utf-8'
294 and whose value is a list of characters.
296 The first character is used for the first level considered as low
297 level, and so on. If there are more levels than characters given
298 here, the list will be repeated.
300 Note that this variable doesn't affect plain lists
301 representation."
302 :group 'org-export-ascii
303 :version "24.4"
304 :package-version '(Org . "8.0")
305 :type '(list
306 (cons :tag "Bullet characters for low level headlines"
307 (const :tag "ASCII charset" ascii)
308 (repeat character))
309 (cons :tag "Bullet characters for low level headlines"
310 (const :tag "Latin-1 charset" latin1)
311 (repeat character))
312 (cons :tag "Bullet characters for low level headlines"
313 (const :tag "UTF-8 charset" utf-8)
314 (repeat character))))
316 (defcustom org-ascii-links-to-notes t
317 "Non-nil means convert links to notes before the next headline.
318 When nil, the link will be exported in place. If the line
319 becomes long in this way, it will be wrapped."
320 :group 'org-export-ascii
321 :version "24.4"
322 :package-version '(Org . "8.0")
323 :type 'boolean)
325 (defcustom org-ascii-table-keep-all-vertical-lines nil
326 "Non-nil means keep all vertical lines in ASCII tables.
327 When nil, vertical lines will be removed except for those needed
328 for column grouping."
329 :group 'org-export-ascii
330 :version "24.4"
331 :package-version '(Org . "8.0")
332 :type 'boolean)
334 (defcustom org-ascii-table-widen-columns t
335 "Non-nil means widen narrowed columns for export.
336 When nil, narrowed columns will look in ASCII export just like in
337 Org mode, i.e. with \"=>\" as ellipsis."
338 :group 'org-export-ascii
339 :version "24.4"
340 :package-version '(Org . "8.0")
341 :type 'boolean)
343 (defcustom org-ascii-table-use-ascii-art nil
344 "Non-nil means table.el tables are turned into ascii-art.
346 It only makes sense when export charset is `utf-8'. It is nil by
347 default since it requires ascii-art-to-unicode.el package. You
348 can download it here:
350 http://gnuvola.org/software/j/aa2u/ascii-art-to-unicode.el."
351 :group 'org-export-ascii
352 :version "24.4"
353 :package-version '(Org . "8.0")
354 :type 'boolean)
356 (defcustom org-ascii-caption-above nil
357 "When non-nil, place caption string before the element.
358 Otherwise, place it right after it."
359 :group 'org-export-ascii
360 :version "24.4"
361 :package-version '(Org . "8.0")
362 :type 'boolean)
364 (defcustom org-ascii-verbatim-format "`%s'"
365 "Format string used for verbatim text and inline code."
366 :group 'org-export-ascii
367 :version "24.4"
368 :package-version '(Org . "8.0")
369 :type 'string)
371 (defcustom org-ascii-format-drawer-function
372 (lambda (_name contents _width) contents)
373 "Function called to format a drawer in ASCII.
375 The function must accept three parameters:
376 NAME the drawer name, like \"LOGBOOK\"
377 CONTENTS the contents of the drawer.
378 WIDTH the text width within the drawer.
380 The function should return either the string to be exported or
381 nil to ignore the drawer.
383 The default value simply returns the value of CONTENTS."
384 :group 'org-export-ascii
385 :version "24.4"
386 :package-version '(Org . "8.0")
387 :type 'function)
389 (defcustom org-ascii-format-inlinetask-function
390 'org-ascii-format-inlinetask-default
391 "Function called to format an inlinetask in ASCII.
393 The function must accept nine parameters:
394 TODO the todo keyword, as a string
395 TODO-TYPE the todo type, a symbol among `todo', `done' and nil.
396 PRIORITY the inlinetask priority, as a string
397 NAME the inlinetask name, as a string.
398 TAGS the inlinetask tags, as a list of strings.
399 CONTENTS the contents of the inlinetask, as a string.
400 WIDTH the width of the inlinetask, as a number.
401 INLINETASK the inlinetask itself.
402 INFO the info channel.
404 The function should return either the string to be exported or
405 nil to ignore the inline task."
406 :group 'org-export-ascii
407 :version "24.4"
408 :package-version '(Org . "8.3")
409 :type 'function)
413 ;;; Internal Functions
415 ;; Internal functions fall into three categories.
417 ;; The first one is about text formatting. The core functions are
418 ;; `org-ascii--current-text-width' and
419 ;; `org-ascii--current-justification', which determine, respectively,
420 ;; the current text width allowed to a given element and its expected
421 ;; justification. Once this information is known,
422 ;; `org-ascii--fill-string', `org-ascii--justify-lines',
423 ;; `org-ascii--justify-element' `org-ascii--box-string' and
424 ;; `org-ascii--indent-string' can operate on a given output string.
425 ;; In particular, justification happens at the regular (i.e.,
426 ;; non-greater) element level, which means that when the exporting
427 ;; process reaches a container (e.g., a center block) content are
428 ;; already justified.
430 ;; The second category contains functions handling elements listings,
431 ;; triggered by "#+TOC:" keyword. As such, `org-ascii--build-toc'
432 ;; returns a complete table of contents, `org-ascii--list-listings'
433 ;; returns a list of referenceable src-block elements, and
434 ;; `org-ascii--list-tables' does the same for table elements.
436 ;; The third category includes general helper functions.
437 ;; `org-ascii--build-title' creates the title for a given headline
438 ;; or inlinetask element. `org-ascii--build-caption' returns the
439 ;; caption string associated to a table or a src-block.
440 ;; `org-ascii--describe-links' creates notes about links for
441 ;; insertion at the end of a section. It uses
442 ;; `org-ascii--unique-links' to get the list of links to describe.
443 ;; Eventually, `org-ascii--translate' translates a string according
444 ;; to language and charset specification.
447 (defun org-ascii--fill-string (s text-width info &optional justify)
448 "Fill a string with specified text-width and return it.
450 S is the string being filled. TEXT-WIDTH is an integer
451 specifying maximum length of a line. INFO is the plist used as
452 a communication channel.
454 Optional argument JUSTIFY can specify any type of justification
455 among `left', `center', `right' or `full'. A nil value is
456 equivalent to `left'. For a justification that doesn't also fill
457 string, see `org-ascii--justify-lines' and
458 `org-ascii--justify-block'.
460 Return nil if S isn't a string."
461 (when (stringp s)
462 (let ((double-space-p sentence-end-double-space))
463 (with-temp-buffer
464 (let ((fill-column text-width)
465 (use-hard-newlines t)
466 (sentence-end-double-space double-space-p))
467 (insert (if (plist-get info :preserve-breaks)
468 (replace-regexp-in-string "\n" hard-newline s)
470 (fill-region (point-min) (point-max) justify))
471 (buffer-string)))))
473 (defun org-ascii--justify-lines (s text-width how)
474 "Justify all lines in string S.
475 TEXT-WIDTH is an integer specifying maximum length of a line.
476 HOW determines the type of justification: it can be `left',
477 `right', `full' or `center'."
478 (with-temp-buffer
479 (insert s)
480 (goto-char (point-min))
481 (let ((fill-column text-width)
482 ;; Disable `adaptive-fill-mode' so it doesn't prevent
483 ;; filling lines matching `adaptive-fill-regexp'.
484 (adaptive-fill-mode nil))
485 (while (< (point) (point-max))
486 (justify-current-line how)
487 (forward-line)))
488 (buffer-string)))
490 (defun org-ascii--justify-element (contents element info)
491 "Justify CONTENTS of ELEMENT.
492 INFO is a plist used as a communication channel. Justification
493 is done according to the type of element. More accurately,
494 paragraphs are filled and other elements are justified as blocks,
495 that is according to the widest non blank line in CONTENTS."
496 (if (not (org-string-nw-p contents)) contents
497 (let ((text-width (org-ascii--current-text-width element info))
498 (how (org-ascii--current-justification element)))
499 (cond
500 ((eq (org-element-type element) 'paragraph)
501 ;; Paragraphs are treated specially as they need to be filled.
502 (org-ascii--fill-string contents text-width info how))
503 ((eq how 'left) contents)
504 (t (with-temp-buffer
505 (insert contents)
506 (goto-char (point-min))
507 (catch 'exit
508 (let ((max-width 0))
509 ;; Compute maximum width. Bail out if it is greater
510 ;; than page width, since no justification is
511 ;; possible.
512 (save-excursion
513 (while (not (eobp))
514 (unless (looking-at-p "[ \t]*$")
515 (end-of-line)
516 (let ((column (current-column)))
517 (cond
518 ((>= column text-width) (throw 'exit contents))
519 ((> column max-width) (setq max-width column)))))
520 (forward-line)))
521 ;; Justify every line according to TEXT-WIDTH and
522 ;; MAX-WIDTH.
523 (let ((offset (/ (- text-width max-width)
524 (if (eq how 'right) 1 2))))
525 (if (zerop offset) (throw 'exit contents)
526 (while (not (eobp))
527 (unless (looking-at-p "[ \t]*$")
528 (indent-to-column offset))
529 (forward-line)))))
530 (buffer-string))))))))
532 (defun org-ascii--indent-string (s width)
533 "Indent string S by WIDTH white spaces.
534 Empty lines are not indented."
535 (when (stringp s)
536 (replace-regexp-in-string
537 "\\(^\\)[ \t]*\\S-" (make-string width ?\s) s nil nil 1)))
539 (defun org-ascii--box-string (s info)
540 "Return string S with a partial box to its left.
541 INFO is a plist used as a communication channel."
542 (let ((utf8p (eq (plist-get info :ascii-charset) 'utf-8)))
543 (format (if utf8p "┌────\n%s\n└────" ",----\n%s\n`----")
544 (replace-regexp-in-string
545 "^" (if utf8p "│ " "| ")
546 ;; Remove last newline character.
547 (replace-regexp-in-string "\n[ \t]*\\'" "" s)))))
549 (defun org-ascii--current-text-width (element info)
550 "Return maximum text width for ELEMENT's contents.
551 INFO is a plist used as a communication channel."
552 (case (org-element-type element)
553 ;; Elements with an absolute width: `headline' and `inlinetask'.
554 (inlinetask (plist-get info :ascii-inlinetask-width))
555 (headline
556 (- (plist-get info :ascii-text-width)
557 (let ((low-level-rank (org-export-low-level-p element info)))
558 (if low-level-rank (* low-level-rank 2)
559 (plist-get info :ascii-global-margin)))))
560 ;; Elements with a relative width: store maximum text width in
561 ;; TOTAL-WIDTH.
562 (otherwise
563 (let* ((genealogy (org-element-lineage element nil t))
564 ;; Total width is determined by the presence, or not, of an
565 ;; inline task among ELEMENT parents.
566 (total-width
567 (if (loop for parent in genealogy
568 thereis (eq (org-element-type parent) 'inlinetask))
569 (plist-get info :ascii-inlinetask-width)
570 ;; No inlinetask: Remove global margin from text width.
571 (- (plist-get info :ascii-text-width)
572 (plist-get info :ascii-global-margin)
573 (let ((parent (org-export-get-parent-headline element)))
574 ;; Inner margin doesn't apply to text before first
575 ;; headline.
576 (if (not parent) 0
577 (let ((low-level-rank
578 (org-export-low-level-p parent info)))
579 ;; Inner margin doesn't apply to contents of
580 ;; low level headlines, since they've got their
581 ;; own indentation mechanism.
582 (if low-level-rank (* low-level-rank 2)
583 (plist-get info :ascii-inner-margin)))))))))
584 (- total-width
585 ;; Each `quote-block' and `verse-block' above narrows text
586 ;; width by twice the standard margin size.
587 (+ (* (loop for parent in genealogy
588 when (memq (org-element-type parent)
589 '(quote-block verse-block))
590 count parent)
591 2 (plist-get info :ascii-quote-margin))
592 ;; Apply list margin once per "top-level" plain-list
593 ;; containing current line
594 (* (let ((count 0))
595 (dolist (e genealogy count)
596 (and (eq (org-element-type e) 'plain-list)
597 (not (eq (org-element-type (org-export-get-parent e))
598 'item))
599 (incf count))))
600 (plist-get info :ascii-list-margin))
601 ;; Text width within a plain-list is restricted by
602 ;; indentation of current item. If that's the case,
603 ;; compute it with the help of `:structure' property from
604 ;; parent item, if any.
605 (let ((item
606 (if (eq (org-element-type element) 'item) element
607 (loop for parent in genealogy
608 when (eq (org-element-type parent) 'item)
609 return parent))))
610 (if (not item) 0
611 ;; Compute indentation offset of the current item,
612 ;; that is the sum of the difference between its
613 ;; indentation and the indentation of the top item in
614 ;; the list and current item bullet's length. Also
615 ;; remove checkbox length, and tag length (for
616 ;; description lists) or bullet length.
617 (let ((struct (org-element-property :structure item))
618 (beg-item (org-element-property :begin item)))
619 (+ (- (org-list-get-ind beg-item struct)
620 (org-list-get-ind
621 (org-list-get-top-point struct) struct))
622 (string-width (or (org-ascii--checkbox item info)
623 ""))
624 (string-width
625 (let ((tag (org-element-property :tag item)))
626 (if tag (org-export-data tag info)
627 (org-element-property :bullet item))))))))))))))
629 (defun org-ascii--current-justification (element)
630 "Return expected justification for ELEMENT's contents.
631 Return value is a symbol among `left', `center', `right' and
632 `full'."
633 (let (justification)
634 (while (and (not justification)
635 (setq element (org-element-property :parent element)))
636 (case (org-element-type element)
637 (center-block (setq justification 'center))
638 (special-block
639 (let ((name (org-element-property :type element)))
640 (cond ((string= name "JUSTIFYRIGHT") (setq justification 'right))
641 ((string= name "JUSTIFYLEFT") (setq justification 'left)))))))
642 (or justification 'left)))
644 (defun org-ascii--build-title
645 (element info text-width &optional underline notags toc)
646 "Format ELEMENT title and return it.
648 ELEMENT is either an `headline' or `inlinetask' element. INFO is
649 a plist used as a communication channel. TEXT-WIDTH is an
650 integer representing the maximum length of a line.
652 When optional argument UNDERLINE is non-nil, underline title,
653 without the tags, according to `org-ascii-underline'
654 specifications.
656 If optional argument NOTAGS is non-nil, no tags will be added to
657 the title.
659 When optional argument TOC is non-nil, use optional title if
660 possible. It doesn't apply to `inlinetask' elements."
661 (let* ((headlinep (eq (org-element-type element) 'headline))
662 (numbers
663 ;; Numbering is specific to headlines.
664 (and headlinep (org-export-numbered-headline-p element info)
665 ;; All tests passed: build numbering string.
666 (concat
667 (mapconcat
668 'number-to-string
669 (org-export-get-headline-number element info) ".")
670 " ")))
671 (text
672 (org-trim
673 (org-export-data
674 (if (and toc headlinep) (org-export-get-alt-title element info)
675 (org-element-property :title element))
676 info)))
677 (todo
678 (and (plist-get info :with-todo-keywords)
679 (let ((todo (org-element-property :todo-keyword element)))
680 (and todo (concat (org-export-data todo info) " ")))))
681 (tags (and (not notags)
682 (plist-get info :with-tags)
683 (let ((tag-list (org-export-get-tags element info)))
684 (and tag-list
685 (format ":%s:"
686 (mapconcat 'identity tag-list ":"))))))
687 (priority
688 (and (plist-get info :with-priority)
689 (let ((char (org-element-property :priority element)))
690 (and char (format "(#%c) " char)))))
691 (first-part (concat numbers todo priority text)))
692 (concat
693 first-part
694 ;; Align tags, if any.
695 (when tags
696 (format
697 (format " %%%ds"
698 (max (- text-width (1+ (string-width first-part)))
699 (string-width tags)))
700 tags))
701 ;; Maybe underline text, if ELEMENT type is `headline' and an
702 ;; underline character has been defined.
703 (when (and underline headlinep)
704 (let ((under-char
705 (nth (1- (org-export-get-relative-level element info))
706 (cdr (assq (plist-get info :ascii-charset)
707 (plist-get info :ascii-underline))))))
708 (and under-char
709 (concat "\n"
710 (make-string (/ (string-width first-part)
711 (char-width under-char))
712 under-char))))))))
714 (defun org-ascii--has-caption-p (element _info)
715 "Non-nil when ELEMENT has a caption affiliated keyword.
716 INFO is a plist used as a communication channel. This function
717 is meant to be used as a predicate for `org-export-get-ordinal'."
718 (org-element-property :caption element))
720 (defun org-ascii--build-caption (element info)
721 "Return caption string for ELEMENT, if applicable.
723 INFO is a plist used as a communication channel.
725 The caption string contains the sequence number of ELEMENT along
726 with its real caption. Return nil when ELEMENT has no affiliated
727 caption keyword."
728 (let ((caption (org-export-get-caption element)))
729 (when caption
730 ;; Get sequence number of current src-block among every
731 ;; src-block with a caption.
732 (let ((reference
733 (org-export-get-ordinal
734 element info nil 'org-ascii--has-caption-p))
735 (title-fmt (org-ascii--translate
736 (case (org-element-type element)
737 (table "Table %d:")
738 (src-block "Listing %d:"))
739 info)))
740 (org-ascii--fill-string
741 (concat (format title-fmt reference)
743 (org-export-data caption info))
744 (org-ascii--current-text-width element info) info)))))
746 (defun org-ascii--build-toc (info &optional n keyword local)
747 "Return a table of contents.
749 INFO is a plist used as a communication channel.
751 Optional argument N, when non-nil, is an integer specifying the
752 depth of the table.
754 Optional argument KEYWORD specifies the TOC keyword, if any, from
755 which the table of contents generation has been initiated.
757 When optional argument LOCAL is non-nil, build a table of
758 contents according to the current headline."
759 (concat
760 (unless local
761 (let ((title (org-ascii--translate "Table of Contents" info)))
762 (concat title "\n"
763 (make-string
764 (string-width title)
765 (if (eq (plist-get info :ascii-charset) 'utf-8) ?─ ?_))
766 "\n\n")))
767 (let ((text-width
768 (if keyword (org-ascii--current-text-width keyword info)
769 (- (plist-get info :ascii-text-width)
770 (plist-get info :ascii-global-margin)))))
771 (mapconcat
772 (lambda (headline)
773 (let* ((level (org-export-get-relative-level headline info))
774 (indent (* (1- level) 3)))
775 (concat
776 (unless (zerop indent) (concat (make-string (1- indent) ?.) " "))
777 (org-ascii--build-title
778 headline info (- text-width indent) nil
779 (or (not (plist-get info :with-tags))
780 (eq (plist-get info :with-tags) 'not-in-toc))
781 'toc))))
782 (org-export-collect-headlines info n (and local keyword)) "\n"))))
784 (defun org-ascii--list-listings (keyword info)
785 "Return a list of listings.
787 KEYWORD is the keyword that initiated the list of listings
788 generation. INFO is a plist used as a communication channel."
789 (let ((title (org-ascii--translate "List of Listings" info)))
790 (concat
791 title "\n"
792 (make-string (string-width title)
793 (if (eq (plist-get info :ascii-charset) 'utf-8) ?─ ?_))
794 "\n\n"
795 (let ((text-width
796 (if keyword (org-ascii--current-text-width keyword info)
797 (- (plist-get info :ascii-text-width)
798 (plist-get info :ascii-global-margin))))
799 ;; Use a counter instead of retrieving ordinal of each
800 ;; src-block.
801 (count 0))
802 (mapconcat
803 (lambda (src-block)
804 ;; Store initial text so its length can be computed. This is
805 ;; used to properly align caption right to it in case of
806 ;; filling (like contents of a description list item).
807 (let* ((initial-text
808 (format (org-ascii--translate "Listing %d:" info)
809 (incf count)))
810 (initial-width (string-width initial-text)))
811 (concat
812 initial-text " "
813 (org-trim
814 (org-ascii--indent-string
815 (org-ascii--fill-string
816 ;; Use short name in priority, if available.
817 (let ((caption (or (org-export-get-caption src-block t)
818 (org-export-get-caption src-block))))
819 (org-export-data caption info))
820 (- text-width initial-width) info)
821 initial-width)))))
822 (org-export-collect-listings info) "\n")))))
824 (defun org-ascii--list-tables (keyword info)
825 "Return a list of tables.
827 KEYWORD is the keyword that initiated the list of tables
828 generation. INFO is a plist used as a communication channel."
829 (let ((title (org-ascii--translate "List of Tables" info)))
830 (concat
831 title "\n"
832 (make-string (string-width title)
833 (if (eq (plist-get info :ascii-charset) 'utf-8) ?─ ?_))
834 "\n\n"
835 (let ((text-width
836 (if keyword (org-ascii--current-text-width keyword info)
837 (- (plist-get info :ascii-text-width)
838 (plist-get info :ascii-global-margin))))
839 ;; Use a counter instead of retrieving ordinal of each
840 ;; src-block.
841 (count 0))
842 (mapconcat
843 (lambda (table)
844 ;; Store initial text so its length can be computed. This is
845 ;; used to properly align caption right to it in case of
846 ;; filling (like contents of a description list item).
847 (let* ((initial-text
848 (format (org-ascii--translate "Table %d:" info)
849 (incf count)))
850 (initial-width (string-width initial-text)))
851 (concat
852 initial-text " "
853 (org-trim
854 (org-ascii--indent-string
855 (org-ascii--fill-string
856 ;; Use short name in priority, if available.
857 (let ((caption (or (org-export-get-caption table t)
858 (org-export-get-caption table))))
859 (org-export-data caption info))
860 (- text-width initial-width) info)
861 initial-width)))))
862 (org-export-collect-tables info) "\n")))))
864 (defun org-ascii--unique-links (element info)
865 "Return a list of unique link references in ELEMENT.
866 ELEMENT is either a headline element or a section element. INFO
867 is a plist used as a communication channel."
868 (let* (seen
869 (unique-link-p
870 ;; Return LINK if it wasn't referenced so far, or nil.
871 ;; Update SEEN links along the way.
872 (lambda (link)
873 (let ((footprint
874 ;; Normalize description in footprints.
875 (cons (org-element-property :raw-link link)
876 (let ((contents (org-element-contents link)))
877 (and contents
878 (replace-regexp-in-string
879 "[ \r\t\n]+" " "
880 (org-trim
881 (org-element-interpret-data contents))))))))
882 ;; Ignore LINK if it hasn't been translated already. It
883 ;; can happen if it is located in an affiliated keyword
884 ;; that was ignored.
885 (when (and (org-string-nw-p
886 (gethash link (plist-get info :exported-data)))
887 (not (member footprint seen)))
888 (push footprint seen) link)))))
889 (org-element-map (if (eq (org-element-type element) 'section)
890 element
891 ;; In a headline, only retrieve links in title
892 ;; and relative section, not in children.
893 (list (org-element-property :title element)
894 (car (org-element-contents element))))
895 'link unique-link-p info nil 'headline t)))
897 (defun org-ascii--describe-links (links width info)
898 "Return a string describing a list of links.
900 LINKS is a list of link type objects, as returned by
901 `org-ascii--unique-links'. WIDTH is the text width allowed for
902 the output string. INFO is a plist used as a communication
903 channel."
904 (mapconcat
905 (lambda (link)
906 (let ((type (org-element-property :type link))
907 (anchor (let ((desc (org-element-contents link)))
908 (if desc (org-export-data desc info)
909 (org-element-property :raw-link link)))))
910 (cond
911 ;; Coderefs, radio links and fuzzy links are ignored.
912 ((member type '("coderef" "radio" "fuzzy")) nil)
913 ;; Id and custom-id links: Headlines refer to their numbering.
914 ((member type '("custom-id" "id"))
915 (let ((dest (org-export-resolve-id-link link info)))
916 (concat
917 (org-ascii--fill-string
918 (format
919 "[%s] %s"
920 anchor
921 (if (stringp dest) ; External file.
922 dest
923 (format
924 (org-ascii--translate "See section %s" info)
925 (if (org-export-numbered-headline-p dest info)
926 (mapconcat #'number-to-string
927 (org-export-get-headline-number dest info)
928 ".")
929 (org-export-data (org-element-property :title dest) info)))))
930 width info)
931 "\n\n")))
932 ;; Do not add a link that cannot be resolved and doesn't have
933 ;; any description: destination is already visible in the
934 ;; paragraph.
935 ((not (org-element-contents link)) nil)
936 ;; Do not add a link already handled by custom export
937 ;; functions.
938 ((org-export-custom-protocol-maybe link anchor 'ascii) nil)
940 (concat
941 (org-ascii--fill-string
942 (format "[%s] %s" anchor (org-element-property :raw-link link))
943 width info)
944 "\n\n")))))
945 links ""))
947 (defun org-ascii--checkbox (item info)
948 "Return checkbox string for ITEM or nil.
949 INFO is a plist used as a communication channel."
950 (let ((utf8p (eq (plist-get info :ascii-charset) 'utf-8)))
951 (case (org-element-property :checkbox item)
952 (on (if utf8p "☑ " "[X] "))
953 (off (if utf8p "☐ " "[ ] "))
954 (trans (if utf8p "☒ " "[-] ")))))
958 ;;; Template
960 (defun org-ascii-template--document-title (info)
961 "Return document title, as a string.
962 INFO is a plist used as a communication channel."
963 (let* ((text-width (plist-get info :ascii-text-width))
964 ;; Links in the title will not be resolved later, so we make
965 ;; sure their path is located right after them.
966 (info (org-combine-plists info '(:ascii-links-to-notes nil)))
967 (with-title (plist-get info :with-title))
968 (title (org-export-data
969 (when with-title (plist-get info :title)) info))
970 (subtitle (org-export-data
971 (when with-title (plist-get info :subtitle)) info))
972 (author (and (plist-get info :with-author)
973 (let ((auth (plist-get info :author)))
974 (and auth (org-export-data auth info)))))
975 (email (and (plist-get info :with-email)
976 (org-export-data (plist-get info :email) info)))
977 (date (and (plist-get info :with-date)
978 (org-export-data (org-export-get-date info) info))))
979 ;; There are two types of title blocks depending on the presence
980 ;; of a title to display.
981 (if (string= title "")
982 ;; Title block without a title. DATE is positioned at the top
983 ;; right of the document, AUTHOR to the top left and EMAIL
984 ;; just below.
985 (cond
986 ((and (org-string-nw-p date) (org-string-nw-p author))
987 (concat
988 author
989 (make-string (- text-width (string-width date) (string-width author))
990 ?\s)
991 date
992 (when (org-string-nw-p email) (concat "\n" email))
993 "\n\n\n"))
994 ((and (org-string-nw-p date) (org-string-nw-p email))
995 (concat
996 email
997 (make-string (- text-width (string-width date) (string-width email))
998 ?\s)
999 date "\n\n\n"))
1000 ((org-string-nw-p date)
1001 (concat
1002 (org-ascii--justify-lines date text-width 'right)
1003 "\n\n\n"))
1004 ((and (org-string-nw-p author) (org-string-nw-p email))
1005 (concat author "\n" email "\n\n\n"))
1006 ((org-string-nw-p author) (concat author "\n\n\n"))
1007 ((org-string-nw-p email) (concat email "\n\n\n")))
1008 ;; Title block with a title. Document's TITLE, along with the
1009 ;; AUTHOR and its EMAIL are both overlined and an underlined,
1010 ;; centered. Date is just below, also centered.
1011 (let* ((utf8p (eq (plist-get info :ascii-charset) 'utf-8))
1012 ;; Format TITLE. It may be filled if it is too wide,
1013 ;; that is wider than the two thirds of the total width.
1014 (title-len (min (apply #'max
1015 (mapcar #'length
1016 (org-split-string
1017 (concat title "\n" subtitle) "\n")))
1018 (/ (* 2 text-width) 3)))
1019 (formatted-title (org-ascii--fill-string title title-len info))
1020 (formatted-subtitle (when (org-string-nw-p subtitle)
1021 (org-ascii--fill-string subtitle title-len info)))
1022 (line
1023 (make-string
1024 (min (+ (max title-len
1025 (string-width (or author ""))
1026 (string-width (or email "")))
1028 text-width) (if utf8p ?━ ?_))))
1029 (org-ascii--justify-lines
1030 (concat line "\n"
1031 (unless utf8p "\n")
1032 (upcase formatted-title)
1033 (and formatted-subtitle (concat "\n" formatted-subtitle))
1034 (cond
1035 ((and (org-string-nw-p author) (org-string-nw-p email))
1036 (concat "\n\n" author "\n" email))
1037 ((org-string-nw-p author) (concat "\n\n" author))
1038 ((org-string-nw-p email) (concat "\n\n" email)))
1039 "\n" line
1040 (when (org-string-nw-p date) (concat "\n\n\n" date))
1041 "\n\n\n") text-width 'center)))))
1043 (defun org-ascii-inner-template (contents info)
1044 "Return complete document string after ASCII conversion.
1045 CONTENTS is the transcoded contents string. INFO is a plist
1046 holding export options."
1047 (org-element-normalize-string
1048 (let ((global-margin (plist-get info :ascii-global-margin)))
1049 (org-ascii--indent-string
1050 (concat
1051 ;; 1. Document's body.
1052 contents
1053 ;; 2. Footnote definitions.
1054 (let ((definitions (org-export-collect-footnote-definitions info))
1055 ;; Insert full links right inside the footnote definition
1056 ;; as they have no chance to be inserted later.
1057 (info (org-combine-plists info '(:ascii-links-to-notes nil))))
1058 (when definitions
1059 (concat
1060 "\n\n\n"
1061 (let ((title (org-ascii--translate "Footnotes" info)))
1062 (concat
1063 title "\n"
1064 (make-string
1065 (string-width title)
1066 (if (eq (plist-get info :ascii-charset) 'utf-8) ?─ ?_))))
1067 "\n\n"
1068 (let ((text-width (- (plist-get info :ascii-text-width)
1069 global-margin)))
1070 (mapconcat
1071 (lambda (ref)
1072 (let ((id (format "[%s] " (car ref))))
1073 ;; Distinguish between inline definitions and
1074 ;; full-fledged definitions.
1075 (org-trim
1076 (let ((def (nth 2 ref)))
1077 (if (org-element-map def org-element-all-elements
1078 #'identity info 'first-match)
1079 ;; Full-fledged definition: footnote ID is
1080 ;; inserted inside the first parsed
1081 ;; paragraph (FIRST), if any, to be sure
1082 ;; filling will take it into consideration.
1083 (let ((first (car (org-element-contents def))))
1084 (if (not (eq (org-element-type first) 'paragraph))
1085 (concat id "\n" (org-export-data def info))
1086 (push id (nthcdr 2 first))
1087 (org-export-data def info)))
1088 ;; Fill paragraph once footnote ID is inserted
1089 ;; in order to have a correct length for first
1090 ;; line.
1091 (org-ascii--fill-string
1092 (concat id (org-export-data def info))
1093 text-width info))))))
1094 definitions "\n\n"))))))
1095 global-margin))))
1097 (defun org-ascii-template (contents info)
1098 "Return complete document string after ASCII conversion.
1099 CONTENTS is the transcoded contents string. INFO is a plist
1100 holding export options."
1101 (let ((global-margin (plist-get info :ascii-global-margin)))
1102 (concat
1103 ;; Build title block.
1104 (org-ascii--indent-string
1105 (concat (org-ascii-template--document-title info)
1106 ;; 2. Table of contents.
1107 (let ((depth (plist-get info :with-toc)))
1108 (when depth
1109 (concat
1110 (org-ascii--build-toc info (and (wholenump depth) depth))
1111 "\n\n\n"))))
1112 global-margin)
1113 ;; Document's body.
1114 contents
1115 ;; Creator. Justify it to the bottom right.
1116 (and (plist-get info :with-creator)
1117 (org-ascii--indent-string
1118 (let ((text-width
1119 (- (plist-get info :ascii-text-width) global-margin)))
1120 (concat
1121 "\n\n\n"
1122 (org-ascii--fill-string
1123 (plist-get info :creator) text-width info 'right)))
1124 global-margin)))))
1126 (defun org-ascii--translate (s info)
1127 "Translate string S according to specified language and charset.
1128 INFO is a plist used as a communication channel."
1129 (let ((charset (intern (format ":%s" (plist-get info :ascii-charset)))))
1130 (org-export-translate s charset info)))
1134 ;;; Transcode Functions
1136 ;;;; Bold
1138 (defun org-ascii-bold (_bold contents _info)
1139 "Transcode BOLD from Org to ASCII.
1140 CONTENTS is the text with bold markup. INFO is a plist holding
1141 contextual information."
1142 (format "*%s*" contents))
1145 ;;;; Center Block
1147 (defun org-ascii-center-block (_center-block contents _info)
1148 "Transcode a CENTER-BLOCK element from Org to ASCII.
1149 CONTENTS holds the contents of the block. INFO is a plist
1150 holding contextual information."
1151 ;; Center has already been taken care of at a lower level, so
1152 ;; there's nothing left to do.
1153 contents)
1156 ;;;; Clock
1158 (defun org-ascii-clock (clock _contents info)
1159 "Transcode a CLOCK object from Org to ASCII.
1160 CONTENTS is nil. INFO is a plist holding contextual
1161 information."
1162 (org-ascii--justify-element
1163 (concat org-clock-string " "
1164 (org-timestamp-translate (org-element-property :value clock))
1165 (let ((time (org-element-property :duration clock)))
1166 (and time
1167 (concat " => "
1168 (apply 'format
1169 "%2s:%02s"
1170 (org-split-string time ":"))))))
1171 clock info))
1174 ;;;; Code
1176 (defun org-ascii-code (code _contents info)
1177 "Return a CODE object from Org to ASCII.
1178 CONTENTS is nil. INFO is a plist holding contextual
1179 information."
1180 (format (plist-get info :ascii-verbatim-format)
1181 (org-element-property :value code)))
1184 ;;;; Drawer
1186 (defun org-ascii-drawer (drawer contents info)
1187 "Transcode a DRAWER element from Org to ASCII.
1188 CONTENTS holds the contents of the block. INFO is a plist
1189 holding contextual information."
1190 (let ((name (org-element-property :drawer-name drawer))
1191 (width (org-ascii--current-text-width drawer info)))
1192 (funcall (plist-get info :ascii-format-drawer-function)
1193 name contents width)))
1196 ;;;; Dynamic Block
1198 (defun org-ascii-dynamic-block (_dynamic-block contents _info)
1199 "Transcode a DYNAMIC-BLOCK element from Org to ASCII.
1200 CONTENTS holds the contents of the block. INFO is a plist
1201 holding contextual information."
1202 contents)
1205 ;;;; Entity
1207 (defun org-ascii-entity (entity _contents info)
1208 "Transcode an ENTITY object from Org to ASCII.
1209 CONTENTS are the definition itself. INFO is a plist holding
1210 contextual information."
1211 (org-element-property
1212 (intern (concat ":" (symbol-name (plist-get info :ascii-charset))))
1213 entity))
1216 ;;;; Example Block
1218 (defun org-ascii-example-block (example-block _contents info)
1219 "Transcode a EXAMPLE-BLOCK element from Org to ASCII.
1220 CONTENTS is nil. INFO is a plist holding contextual information."
1221 (org-ascii--justify-element
1222 (org-ascii--box-string
1223 (org-export-format-code-default example-block info) info)
1224 example-block info))
1227 ;;;; Export Snippet
1229 (defun org-ascii-export-snippet (export-snippet _contents _info)
1230 "Transcode a EXPORT-SNIPPET object from Org to ASCII.
1231 CONTENTS is nil. INFO is a plist holding contextual information."
1232 (when (eq (org-export-snippet-backend export-snippet) 'ascii)
1233 (org-element-property :value export-snippet)))
1236 ;;;; Export Block
1238 (defun org-ascii-export-block (export-block _contents info)
1239 "Transcode a EXPORT-BLOCK element from Org to ASCII.
1240 CONTENTS is nil. INFO is a plist holding contextual information."
1241 (when (string= (org-element-property :type export-block) "ASCII")
1242 (org-ascii--justify-element
1243 (org-element-property :value export-block) export-block info)))
1246 ;;;; Fixed Width
1248 (defun org-ascii-fixed-width (fixed-width _contents info)
1249 "Transcode a FIXED-WIDTH element from Org to ASCII.
1250 CONTENTS is nil. INFO is a plist holding contextual information."
1251 (org-ascii--justify-element
1252 (org-ascii--box-string
1253 (org-remove-indentation
1254 (org-element-property :value fixed-width)) info)
1255 fixed-width info))
1258 ;;;; Footnote Definition
1260 ;; Footnote Definitions are ignored. They are compiled at the end of
1261 ;; the document, by `org-ascii-inner-template'.
1264 ;;;; Footnote Reference
1266 (defun org-ascii-footnote-reference (footnote-reference _contents info)
1267 "Transcode a FOOTNOTE-REFERENCE element from Org to ASCII.
1268 CONTENTS is nil. INFO is a plist holding contextual information."
1269 (format "[%s]" (org-export-get-footnote-number footnote-reference info)))
1272 ;;;; Headline
1274 (defun org-ascii-headline (headline contents info)
1275 "Transcode a HEADLINE element from Org to ASCII.
1276 CONTENTS holds the contents of the headline. INFO is a plist
1277 holding contextual information."
1278 ;; Don't export footnote section, which will be handled at the end
1279 ;; of the template.
1280 (unless (org-element-property :footnote-section-p headline)
1281 (let* ((low-level (org-export-low-level-p headline info))
1282 (width (org-ascii--current-text-width headline info))
1283 ;; Export title early so that any link in it can be
1284 ;; exported and seen in `org-ascii--unique-links'.
1285 (title (org-ascii--build-title headline info width (not low-level)))
1286 ;; Blank lines between headline and its contents.
1287 ;; `org-ascii-headline-spacing', when set, overwrites
1288 ;; original buffer's spacing.
1289 (pre-blanks
1290 (make-string (or (car (plist-get info :ascii-headline-spacing))
1291 (org-element-property :pre-blank headline)
1293 ?\n))
1294 (links (and (plist-get info :ascii-links-to-notes)
1295 (org-ascii--describe-links
1296 (org-ascii--unique-links headline info) width info)))
1297 ;; Re-build contents, inserting section links at the right
1298 ;; place. The cost is low since build results are cached.
1299 (body
1300 (if (not (org-string-nw-p links)) contents
1301 (let* ((contents (org-element-contents headline))
1302 (section (let ((first (car contents)))
1303 (and (eq (org-element-type first) 'section)
1304 first))))
1305 (concat (and section
1306 (concat (org-element-normalize-string
1307 (org-export-data section info))
1308 "\n\n"))
1309 links
1310 (mapconcat (lambda (e) (org-export-data e info))
1311 (if section (cdr contents) contents)
1312 ""))))))
1313 ;; Deep subtree: export it as a list item.
1314 (if low-level
1315 (let* ((bullets (cdr (assq (plist-get info :ascii-charset)
1316 (plist-get info :ascii-bullets))))
1317 (bullet
1318 (format "%c "
1319 (nth (mod (1- low-level) (length bullets)) bullets))))
1320 (concat bullet title "\n" pre-blanks
1321 ;; Contents, indented by length of bullet.
1322 (org-ascii--indent-string body (length bullet))))
1323 ;; Else: Standard headline.
1324 (concat title "\n" pre-blanks body)))))
1327 ;;;; Horizontal Rule
1329 (defun org-ascii-horizontal-rule (horizontal-rule _contents info)
1330 "Transcode an HORIZONTAL-RULE object from Org to ASCII.
1331 CONTENTS is nil. INFO is a plist holding contextual
1332 information."
1333 (let ((text-width (org-ascii--current-text-width horizontal-rule info))
1334 (spec-width
1335 (org-export-read-attribute :attr_ascii horizontal-rule :width)))
1336 (org-ascii--justify-lines
1337 (make-string (if (and spec-width (string-match "^[0-9]+$" spec-width))
1338 (string-to-number spec-width)
1339 text-width)
1340 (if (eq (plist-get info :ascii-charset) 'utf-8) ?― ?-))
1341 text-width 'center)))
1344 ;;;; Inline Src Block
1346 (defun org-ascii-inline-src-block (inline-src-block _contents info)
1347 "Transcode an INLINE-SRC-BLOCK element from Org to ASCII.
1348 CONTENTS holds the contents of the item. INFO is a plist holding
1349 contextual information."
1350 (format (plist-get info :ascii-verbatim-format)
1351 (org-element-property :value inline-src-block)))
1354 ;;;; Inlinetask
1356 (defun org-ascii-format-inlinetask-default
1357 (_todo _type _priority _name _tags contents width inlinetask info)
1358 "Format an inline task element for ASCII export.
1359 See `org-ascii-format-inlinetask-function' for a description
1360 of the parameters."
1361 (let* ((utf8p (eq (plist-get info :ascii-charset) 'utf-8))
1362 (width (or width (plist-get info :ascii-inlinetask-width))))
1363 (org-ascii--indent-string
1364 (concat
1365 ;; Top line, with an additional blank line if not in UTF-8.
1366 (make-string width (if utf8p ?━ ?_)) "\n"
1367 (unless utf8p (concat (make-string width ? ) "\n"))
1368 ;; Add title. Fill it if wider than inlinetask.
1369 (let ((title (org-ascii--build-title inlinetask info width)))
1370 (if (<= (string-width title) width) title
1371 (org-ascii--fill-string title width info)))
1372 "\n"
1373 ;; If CONTENTS is not empty, insert it along with
1374 ;; a separator.
1375 (when (org-string-nw-p contents)
1376 (concat (make-string width (if utf8p ?─ ?-)) "\n" contents))
1377 ;; Bottom line.
1378 (make-string width (if utf8p ?━ ?_)))
1379 ;; Flush the inlinetask to the right.
1380 (- (plist-get info :ascii-text-width) (plist-get info :ascii-global-margin)
1381 (if (not (org-export-get-parent-headline inlinetask)) 0
1382 (plist-get info :ascii-inner-margin))
1383 (org-ascii--current-text-width inlinetask info)))))
1385 (defun org-ascii-inlinetask (inlinetask contents info)
1386 "Transcode an INLINETASK element from Org to ASCII.
1387 CONTENTS holds the contents of the block. INFO is a plist
1388 holding contextual information."
1389 (let ((width (org-ascii--current-text-width inlinetask info)))
1390 (funcall (plist-get info :ascii-format-inlinetask-function)
1391 ;; todo.
1392 (and (plist-get info :with-todo-keywords)
1393 (let ((todo (org-element-property
1394 :todo-keyword inlinetask)))
1395 (and todo (org-export-data todo info))))
1396 ;; todo-type
1397 (org-element-property :todo-type inlinetask)
1398 ;; priority
1399 (and (plist-get info :with-priority)
1400 (org-element-property :priority inlinetask))
1401 ;; title
1402 (org-export-data (org-element-property :title inlinetask) info)
1403 ;; tags
1404 (and (plist-get info :with-tags)
1405 (org-element-property :tags inlinetask))
1406 ;; contents and width
1407 contents width inlinetask info)))
1410 ;;;; Italic
1412 (defun org-ascii-italic (_italic contents _info)
1413 "Transcode italic from Org to ASCII.
1414 CONTENTS is the text with italic markup. INFO is a plist holding
1415 contextual information."
1416 (format "/%s/" contents))
1419 ;;;; Item
1421 (defun org-ascii-item (item contents info)
1422 "Transcode an ITEM element from Org to ASCII.
1423 CONTENTS holds the contents of the item. INFO is a plist holding
1424 contextual information."
1425 (let* ((utf8p (eq (plist-get info :ascii-charset) 'utf-8))
1426 (checkbox (org-ascii--checkbox item info))
1427 (list-type (org-element-property :type (org-export-get-parent item)))
1428 (bullet
1429 ;; First parent of ITEM is always the plain-list. Get
1430 ;; `:type' property from it.
1431 (org-list-bullet-string
1432 (case list-type
1433 (descriptive
1434 (concat checkbox
1435 (org-export-data (org-element-property :tag item) info)
1436 ": "))
1437 (ordered
1438 ;; Return correct number for ITEM, paying attention to
1439 ;; counters.
1440 (let* ((struct (org-element-property :structure item))
1441 (bul (org-element-property :bullet item))
1442 (num (number-to-string
1443 (car (last (org-list-get-item-number
1444 (org-element-property :begin item)
1445 struct
1446 (org-list-prevs-alist struct)
1447 (org-list-parents-alist struct)))))))
1448 (replace-regexp-in-string "[0-9]+" num bul)))
1449 (t (let ((bul (org-element-property :bullet item)))
1450 ;; Change bullets into more visible form if UTF-8 is active.
1451 (if (not utf8p) bul
1452 (replace-regexp-in-string
1453 "-" "•"
1454 (replace-regexp-in-string
1455 "+" "⁃"
1456 (replace-regexp-in-string "*" "‣" bul))))))))))
1457 (concat
1458 bullet
1459 (unless (eq list-type 'descriptive) checkbox)
1460 ;; Contents: Pay attention to indentation. Note: check-boxes are
1461 ;; already taken care of at the paragraph level so they don't
1462 ;; interfere with indentation.
1463 (let ((contents (org-ascii--indent-string contents (string-width bullet))))
1464 (if (eq (org-element-type (car (org-element-contents item))) 'paragraph)
1465 (org-trim contents)
1466 (concat "\n" contents))))))
1469 ;;;; Keyword
1471 (defun org-ascii-keyword (keyword _contents info)
1472 "Transcode a KEYWORD element from Org to ASCII.
1473 CONTENTS is nil. INFO is a plist holding contextual
1474 information."
1475 (let ((key (org-element-property :key keyword))
1476 (value (org-element-property :value keyword)))
1477 (cond
1478 ((string= key "ASCII") (org-ascii--justify-element value keyword info))
1479 ((string= key "TOC")
1480 (org-ascii--justify-element
1481 (let ((case-fold-search t))
1482 (cond
1483 ((org-string-match-p "\\<headlines\\>" value)
1484 (let ((depth (and (string-match "\\<[0-9]+\\>" value)
1485 (string-to-number (match-string 0 value))))
1486 (localp (org-string-match-p "\\<local\\>" value)))
1487 (org-ascii--build-toc info depth keyword localp)))
1488 ((org-string-match-p "\\<tables\\>" value)
1489 (org-ascii--list-tables keyword info))
1490 ((org-string-match-p "\\<listings\\>" value)
1491 (org-ascii--list-listings keyword info))))
1492 keyword info)))))
1495 ;;;; Latex Environment
1497 (defun org-ascii-latex-environment (latex-environment _contents info)
1498 "Transcode a LATEX-ENVIRONMENT element from Org to ASCII.
1499 CONTENTS is nil. INFO is a plist holding contextual
1500 information."
1501 (when (plist-get info :with-latex)
1502 (org-ascii--justify-element
1503 (org-remove-indentation (org-element-property :value latex-environment))
1504 latex-environment info)))
1507 ;;;; Latex Fragment
1509 (defun org-ascii-latex-fragment (latex-fragment _contents info)
1510 "Transcode a LATEX-FRAGMENT object from Org to ASCII.
1511 CONTENTS is nil. INFO is a plist holding contextual
1512 information."
1513 (when (plist-get info :with-latex)
1514 (org-element-property :value latex-fragment)))
1517 ;;;; Line Break
1519 (defun org-ascii-line-break (_line-break _contents _info)
1520 "Transcode a LINE-BREAK object from Org to ASCII.
1521 CONTENTS is nil. INFO is a plist holding contextual
1522 information." hard-newline)
1525 ;;;; Link
1527 (defun org-ascii-link (link desc info)
1528 "Transcode a LINK object from Org to ASCII.
1530 DESC is the description part of the link, or the empty string.
1531 INFO is a plist holding contextual information."
1532 (let ((type (org-element-property :type link)))
1533 (cond
1534 ((org-export-custom-protocol-maybe link desc 'ascii))
1535 ((string= type "coderef")
1536 (let ((ref (org-element-property :path link)))
1537 (format (org-export-get-coderef-format ref desc)
1538 (org-export-resolve-coderef ref info))))
1539 ;; Do not apply a special syntax on radio links. Though, use
1540 ;; transcoded target's contents as output.
1541 ((string= type "radio") desc)
1542 ;; Do not apply a special syntax on fuzzy links pointing to
1543 ;; targets.
1544 ((string= type "fuzzy")
1545 (let ((destination (org-export-resolve-fuzzy-link link info)))
1546 (if (org-string-nw-p desc) desc
1547 (when destination
1548 (let ((number
1549 (org-export-get-ordinal
1550 destination info nil 'org-ascii--has-caption-p)))
1551 (if number
1552 (if (atom number) (number-to-string number)
1553 (mapconcat #'number-to-string number "."))
1554 ;; Unnumbered headline.
1555 (when (eq 'headline (org-element-type destination))
1556 (format "[%s]"
1557 (org-export-data
1558 (org-element-property :title destination)
1559 info)))))))))
1561 (let ((raw-link (org-element-property :raw-link link)))
1562 (if (not (org-string-nw-p desc)) (format "[%s]" raw-link)
1563 (concat (format "[%s]" desc)
1564 (and (not (plist-get info :ascii-links-to-notes))
1565 (format " (%s)" raw-link)))))))))
1568 ;;;; Node Properties
1570 (defun org-ascii-node-property (node-property _contents _info)
1571 "Transcode a NODE-PROPERTY element from Org to ASCII.
1572 CONTENTS is nil. INFO is a plist holding contextual
1573 information."
1574 (format "%s:%s"
1575 (org-element-property :key node-property)
1576 (let ((value (org-element-property :value node-property)))
1577 (if value (concat " " value) ""))))
1580 ;;;; Paragraph
1582 (defun org-ascii-paragraph (paragraph contents info)
1583 "Transcode a PARAGRAPH element from Org to ASCII.
1584 CONTENTS is the contents of the paragraph, as a string. INFO is
1585 the plist used as a communication channel."
1586 (org-ascii--justify-element
1587 (let ((indented-line-width (plist-get info :ascii-indented-line-width)))
1588 (if (not (wholenump indented-line-width)) contents
1589 (concat
1590 ;; Do not indent first paragraph in a section.
1591 (unless (and (not (org-export-get-previous-element paragraph info))
1592 (eq (org-element-type (org-export-get-parent paragraph))
1593 'section))
1594 (make-string indented-line-width ?\s))
1595 (replace-regexp-in-string "\\`[ \t]+" "" contents))))
1596 paragraph info))
1599 ;;;; Plain List
1601 (defun org-ascii-plain-list (plain-list contents info)
1602 "Transcode a PLAIN-LIST element from Org to ASCII.
1603 CONTENTS is the contents of the list. INFO is a plist holding
1604 contextual information."
1605 (let ((margin (plist-get info :ascii-list-margin)))
1606 (if (or (< margin 1)
1607 (eq (org-element-type (org-export-get-parent plain-list)) 'item))
1608 contents
1609 (org-ascii--indent-string contents margin))))
1612 ;;;; Plain Text
1614 (defun org-ascii-plain-text (text info)
1615 "Transcode a TEXT string from Org to ASCII.
1616 INFO is a plist used as a communication channel."
1617 (let ((utf8p (eq (plist-get info :ascii-charset) 'utf-8)))
1618 (when (and utf8p (plist-get info :with-smart-quotes))
1619 (setq text (org-export-activate-smart-quotes text :utf-8 info)))
1620 (if (not (plist-get info :with-special-strings)) text
1621 (setq text (replace-regexp-in-string "\\\\-" "" text))
1622 (if (not utf8p) text
1623 ;; Usual replacements in utf-8 with proper option set.
1624 (replace-regexp-in-string
1625 "\\.\\.\\." "…"
1626 (replace-regexp-in-string
1627 "--" "–"
1628 (replace-regexp-in-string "---" "—" text)))))))
1631 ;;;; Planning
1633 (defun org-ascii-planning (planning _contents info)
1634 "Transcode a PLANNING element from Org to ASCII.
1635 CONTENTS is nil. INFO is a plist used as a communication
1636 channel."
1637 (org-ascii--justify-element
1638 (mapconcat
1639 #'identity
1640 (delq nil
1641 (list (let ((closed (org-element-property :closed planning)))
1642 (when closed
1643 (concat org-closed-string " "
1644 (org-timestamp-translate closed))))
1645 (let ((deadline (org-element-property :deadline planning)))
1646 (when deadline
1647 (concat org-deadline-string " "
1648 (org-timestamp-translate deadline))))
1649 (let ((scheduled (org-element-property :scheduled planning)))
1650 (when scheduled
1651 (concat org-scheduled-string " "
1652 (org-timestamp-translate scheduled))))))
1653 " ")
1654 planning info))
1657 ;;;; Property Drawer
1659 (defun org-ascii-property-drawer (property-drawer contents info)
1660 "Transcode a PROPERTY-DRAWER element from Org to ASCII.
1661 CONTENTS holds the contents of the drawer. INFO is a plist
1662 holding contextual information."
1663 (and (org-string-nw-p contents)
1664 (org-ascii--justify-element contents property-drawer info)))
1667 ;;;; Quote Block
1669 (defun org-ascii-quote-block (_quote-block contents info)
1670 "Transcode a QUOTE-BLOCK element from Org to ASCII.
1671 CONTENTS holds the contents of the block. INFO is a plist
1672 holding contextual information."
1673 (org-ascii--indent-string contents (plist-get info :ascii-quote-margin)))
1676 ;;;; Radio Target
1678 (defun org-ascii-radio-target (_radio-target contents _info)
1679 "Transcode a RADIO-TARGET object from Org to ASCII.
1680 CONTENTS is the contents of the target. INFO is a plist holding
1681 contextual information."
1682 contents)
1685 ;;;; Section
1687 (defun org-ascii-section (section contents info)
1688 "Transcode a SECTION element from Org to ASCII.
1689 CONTENTS is the contents of the section. INFO is a plist holding
1690 contextual information."
1691 (let ((links
1692 (and (plist-get info :ascii-links-to-notes)
1693 ;; Take care of links in first section of the document.
1694 (not (org-element-lineage section '(headline)))
1695 (org-ascii--describe-links
1696 (org-ascii--unique-links section info)
1697 (org-ascii--current-text-width section info)
1698 info))))
1699 (org-ascii--indent-string
1700 (if (not (org-string-nw-p links)) contents
1701 (concat (org-element-normalize-string contents) "\n\n" links))
1702 ;; Do not apply inner margin if parent headline is low level.
1703 (let ((headline (org-export-get-parent-headline section)))
1704 (if (or (not headline) (org-export-low-level-p headline info)) 0
1705 (plist-get info :ascii-inner-margin))))))
1708 ;;;; Special Block
1710 (defun org-ascii-special-block (_special-block contents _info)
1711 "Transcode a SPECIAL-BLOCK element from Org to ASCII.
1712 CONTENTS holds the contents of the block. INFO is a plist
1713 holding contextual information."
1714 ;; "JUSTIFYLEFT" and "JUSTFYRIGHT" have already been taken care of
1715 ;; at a lower level. There is no other special block type to
1716 ;; handle.
1717 contents)
1720 ;;;; Src Block
1722 (defun org-ascii-src-block (src-block _contents info)
1723 "Transcode a SRC-BLOCK element from Org to ASCII.
1724 CONTENTS holds the contents of the item. INFO is a plist holding
1725 contextual information."
1726 (let ((caption (org-ascii--build-caption src-block info))
1727 (caption-above-p (plist-get info :ascii-caption-above))
1728 (code (org-export-format-code-default src-block info)))
1729 (if (equal code "") ""
1730 (org-ascii--justify-element
1731 (concat
1732 (and caption caption-above-p (concat caption "\n"))
1733 (org-ascii--box-string code info)
1734 (and caption (not caption-above-p) (concat "\n" caption)))
1735 src-block info))))
1738 ;;;; Statistics Cookie
1740 (defun org-ascii-statistics-cookie (statistics-cookie _contents _info)
1741 "Transcode a STATISTICS-COOKIE object from Org to ASCII.
1742 CONTENTS is nil. INFO is a plist holding contextual information."
1743 (org-element-property :value statistics-cookie))
1746 ;;;; Subscript
1748 (defun org-ascii-subscript (subscript contents _info)
1749 "Transcode a SUBSCRIPT object from Org to ASCII.
1750 CONTENTS is the contents of the object. INFO is a plist holding
1751 contextual information."
1752 (if (org-element-property :use-brackets-p subscript)
1753 (format "_{%s}" contents)
1754 (format "_%s" contents)))
1757 ;;;; Superscript
1759 (defun org-ascii-superscript (superscript contents _info)
1760 "Transcode a SUPERSCRIPT object from Org to ASCII.
1761 CONTENTS is the contents of the object. INFO is a plist holding
1762 contextual information."
1763 (if (org-element-property :use-brackets-p superscript)
1764 (format "^{%s}" contents)
1765 (format "^%s" contents)))
1768 ;;;; Strike-through
1770 (defun org-ascii-strike-through (_strike-through contents _info)
1771 "Transcode STRIKE-THROUGH from Org to ASCII.
1772 CONTENTS is text with strike-through markup. INFO is a plist
1773 holding contextual information."
1774 (format "+%s+" contents))
1777 ;;;; Table
1779 (defun org-ascii-table (table contents info)
1780 "Transcode a TABLE element from Org to ASCII.
1781 CONTENTS is the contents of the table. INFO is a plist holding
1782 contextual information."
1783 (let ((caption (org-ascii--build-caption table info))
1784 (caption-above-p (plist-get info :ascii-caption-above)))
1785 (org-ascii--justify-element
1786 (concat
1787 ;; Possibly add a caption string above.
1788 (and caption caption-above-p (concat caption "\n"))
1789 ;; Insert table. Note: "table.el" tables are left unmodified.
1790 (cond ((eq (org-element-property :type table) 'org) contents)
1791 ((and (plist-get info :ascii-table-use-ascii-art)
1792 (eq (plist-get info :ascii-charset) 'utf-8)
1793 (require 'ascii-art-to-unicode nil t))
1794 (with-temp-buffer
1795 (insert (org-remove-indentation
1796 (org-element-property :value table)))
1797 (goto-char (point-min))
1798 (aa2u)
1799 (goto-char (point-max))
1800 (skip-chars-backward " \r\t\n")
1801 (buffer-substring (point-min) (point))))
1802 (t (org-remove-indentation (org-element-property :value table))))
1803 ;; Possible add a caption string below.
1804 (and (not caption-above-p) caption))
1805 table info)))
1808 ;;;; Table Cell
1810 (defun org-ascii--table-cell-width (table-cell info)
1811 "Return width of TABLE-CELL.
1813 INFO is a plist used as a communication channel.
1815 Width of a cell is determined either by a width cookie in the
1816 same column as the cell, or by the maximum cell's length in that
1817 column.
1819 When `org-ascii-table-widen-columns' is non-nil, width cookies
1820 are ignored."
1821 (let* ((row (org-export-get-parent table-cell))
1822 (table (org-export-get-parent row))
1823 (col (let ((cells (org-element-contents row)))
1824 (- (length cells) (length (memq table-cell cells)))))
1825 (cache
1826 (or (plist-get info :ascii-table-cell-width-cache)
1827 (plist-get (setq info
1828 (plist-put info :ascii-table-cell-width-cache
1829 (make-hash-table :test 'equal)))
1830 :ascii-table-cell-width-cache)))
1831 (key (cons table col))
1832 (widenp (plist-get info :ascii-table-widen-columns)))
1833 (or (gethash key cache)
1834 (puthash
1836 (let ((cookie-width (org-export-table-cell-width table-cell info)))
1837 (or (and (not widenp) cookie-width)
1838 (let ((contents-width
1839 (let ((max-width 0))
1840 (org-element-map table 'table-row
1841 (lambda (row)
1842 (setq max-width
1843 (max (string-width
1844 (org-export-data
1845 (org-element-contents
1846 (elt (org-element-contents row) col))
1847 info))
1848 max-width)))
1849 info)
1850 max-width)))
1851 (cond ((not cookie-width) contents-width)
1852 (widenp (max cookie-width contents-width))
1853 (t cookie-width)))))
1854 cache))))
1856 (defun org-ascii-table-cell (table-cell contents info)
1857 "Transcode a TABLE-CELL object from Org to ASCII.
1858 CONTENTS is the cell contents. INFO is a plist used as
1859 a communication channel."
1860 ;; Determine column width. When `org-ascii-table-widen-columns'
1861 ;; is nil and some width cookie has set it, use that value.
1862 ;; Otherwise, compute the maximum width among transcoded data of
1863 ;; each cell in the column.
1864 (let ((width (org-ascii--table-cell-width table-cell info)))
1865 ;; When contents are too large, truncate them.
1866 (unless (or (plist-get info :ascii-table-widen-columns)
1867 (<= (string-width (or contents "")) width))
1868 (setq contents (concat (substring contents 0 (- width 2)) "=>")))
1869 ;; Align contents correctly within the cell.
1870 (let* ((indent-tabs-mode nil)
1871 (data
1872 (when contents
1873 (org-ascii--justify-lines
1874 contents width
1875 (org-export-table-cell-alignment table-cell info)))))
1876 (setq contents
1877 (concat data
1878 (make-string (- width (string-width (or data ""))) ?\s))))
1879 ;; Return cell.
1880 (concat (format " %s " contents)
1881 (when (memq 'right (org-export-table-cell-borders table-cell info))
1882 (if (eq (plist-get info :ascii-charset) 'utf-8) "│" "|")))))
1885 ;;;; Table Row
1887 (defun org-ascii-table-row (table-row contents info)
1888 "Transcode a TABLE-ROW element from Org to ASCII.
1889 CONTENTS is the row contents. INFO is a plist used as
1890 a communication channel."
1891 (when (eq (org-element-property :type table-row) 'standard)
1892 (let ((build-hline
1893 (function
1894 (lambda (lcorner horiz vert rcorner)
1895 (concat
1896 (apply
1897 'concat
1898 (org-element-map table-row 'table-cell
1899 (lambda (cell)
1900 (let ((width (org-ascii--table-cell-width cell info))
1901 (borders (org-export-table-cell-borders cell info)))
1902 (concat
1903 ;; In order to know if CELL starts the row, do
1904 ;; not compare it with the first cell in the
1905 ;; row as there might be a special column.
1906 ;; Instead, compare it with first exportable
1907 ;; cell, obtained with `org-element-map'.
1908 (when (and (memq 'left borders)
1909 (eq (org-element-map table-row 'table-cell
1910 'identity info t)
1911 cell))
1912 lcorner)
1913 (make-string (+ 2 width) (string-to-char horiz))
1914 (cond
1915 ((not (memq 'right borders)) nil)
1916 ((eq (car (last (org-element-contents table-row))) cell)
1917 rcorner)
1918 (t vert)))))
1919 info)) "\n"))))
1920 (utf8p (eq (plist-get info :ascii-charset) 'utf-8))
1921 (borders (org-export-table-cell-borders
1922 (org-element-map table-row 'table-cell 'identity info t)
1923 info)))
1924 (concat (cond
1925 ((and (memq 'top borders) (or utf8p (memq 'above borders)))
1926 (if utf8p (funcall build-hline "┍" "━" "┯" "┑")
1927 (funcall build-hline "+" "-" "+" "+")))
1928 ((memq 'above borders)
1929 (if utf8p (funcall build-hline "├" "─" "┼" "┤")
1930 (funcall build-hline "+" "-" "+" "+"))))
1931 (when (memq 'left borders) (if utf8p "│" "|"))
1932 contents "\n"
1933 (when (and (memq 'bottom borders) (or utf8p (memq 'below borders)))
1934 (if utf8p (funcall build-hline "┕" "━" "┷" "┙")
1935 (funcall build-hline "+" "-" "+" "+")))))))
1938 ;;;; Timestamp
1940 (defun org-ascii-timestamp (timestamp _contents info)
1941 "Transcode a TIMESTAMP object from Org to ASCII.
1942 CONTENTS is nil. INFO is a plist holding contextual information."
1943 (org-ascii-plain-text (org-timestamp-translate timestamp) info))
1946 ;;;; Underline
1948 (defun org-ascii-underline (_underline contents _info)
1949 "Transcode UNDERLINE from Org to ASCII.
1950 CONTENTS is the text with underline markup. INFO is a plist
1951 holding contextual information."
1952 (format "_%s_" contents))
1955 ;;;; Verbatim
1957 (defun org-ascii-verbatim (verbatim _contents info)
1958 "Return a VERBATIM object from Org to ASCII.
1959 CONTENTS is nil. INFO is a plist holding contextual information."
1960 (format (plist-get info :ascii-verbatim-format)
1961 (org-element-property :value verbatim)))
1964 ;;;; Verse Block
1966 (defun org-ascii-verse-block (verse-block contents info)
1967 "Transcode a VERSE-BLOCK element from Org to ASCII.
1968 CONTENTS is verse block contents. INFO is a plist holding
1969 contextual information."
1970 (org-ascii--indent-string
1971 (org-ascii--justify-element contents verse-block info)
1972 (plist-get info :ascii-quote-margin)))
1976 ;;; Filters
1978 (defun org-ascii-filter-headline-blank-lines (headline _backend info)
1979 "Filter controlling number of blank lines after a headline.
1981 HEADLINE is a string representing a transcoded headline. BACKEND
1982 is symbol specifying back-end used for export. INFO is plist
1983 containing the communication channel.
1985 This function only applies to `ascii' back-end. See
1986 `org-ascii-headline-spacing' for information."
1987 (let ((headline-spacing (plist-get info :ascii-headline-spacing)))
1988 (if (not headline-spacing) headline
1989 (let ((blanks (make-string (1+ (cdr headline-spacing)) ?\n)))
1990 (replace-regexp-in-string "\n\\(?:\n[ \t]*\\)*\\'" blanks headline)))))
1992 (defun org-ascii-filter-paragraph-spacing (tree _backend info)
1993 "Filter controlling number of blank lines between paragraphs.
1995 TREE is the parse tree. BACKEND is the symbol specifying
1996 back-end used for export. INFO is a plist used as
1997 a communication channel.
1999 See `org-ascii-paragraph-spacing' for information."
2000 (let ((paragraph-spacing (plist-get info :ascii-paragraph-spacing)))
2001 (when (wholenump paragraph-spacing)
2002 (org-element-map tree 'paragraph
2003 (lambda (p)
2004 (when (eq (org-element-type (org-export-get-next-element p info))
2005 'paragraph)
2006 (org-element-put-property p :post-blank paragraph-spacing))))))
2007 tree)
2009 (defun org-ascii-filter-comment-spacing (tree _backend info)
2010 "Filter removing blank lines between comments.
2011 TREE is the parse tree. BACKEND is the symbol specifying
2012 back-end used for export. INFO is a plist used as
2013 a communication channel."
2014 (org-element-map tree '(comment comment-block)
2015 (lambda (c)
2016 (when (memq (org-element-type (org-export-get-next-element c info))
2017 '(comment comment-block))
2018 (org-element-put-property c :post-blank 0))))
2019 tree)
2023 ;;; End-user functions
2025 ;;;###autoload
2026 (defun org-ascii-export-as-ascii
2027 (&optional async subtreep visible-only body-only ext-plist)
2028 "Export current buffer to a text buffer.
2030 If narrowing is active in the current buffer, only export its
2031 narrowed part.
2033 If a region is active, export that region.
2035 A non-nil optional argument ASYNC means the process should happen
2036 asynchronously. The resulting buffer should be accessible
2037 through the `org-export-stack' interface.
2039 When optional argument SUBTREEP is non-nil, export the sub-tree
2040 at point, extracting information from the headline properties
2041 first.
2043 When optional argument VISIBLE-ONLY is non-nil, don't export
2044 contents of hidden elements.
2046 When optional argument BODY-ONLY is non-nil, strip title and
2047 table of contents from output.
2049 EXT-PLIST, when provided, is a property list with external
2050 parameters overriding Org default settings, but still inferior to
2051 file-local settings.
2053 Export is done in a buffer named \"*Org ASCII Export*\", which
2054 will be displayed when `org-export-show-temporary-export-buffer'
2055 is non-nil."
2056 (interactive)
2057 (org-export-to-buffer 'ascii "*Org ASCII Export*"
2058 async subtreep visible-only body-only ext-plist (lambda () (text-mode))))
2060 ;;;###autoload
2061 (defun org-ascii-export-to-ascii
2062 (&optional async subtreep visible-only body-only ext-plist)
2063 "Export current buffer to a text file.
2065 If narrowing is active in the current buffer, only export its
2066 narrowed part.
2068 If a region is active, export that region.
2070 A non-nil optional argument ASYNC means the process should happen
2071 asynchronously. The resulting file should be accessible through
2072 the `org-export-stack' interface.
2074 When optional argument SUBTREEP is non-nil, export the sub-tree
2075 at point, extracting information from the headline properties
2076 first.
2078 When optional argument VISIBLE-ONLY is non-nil, don't export
2079 contents of hidden elements.
2081 When optional argument BODY-ONLY is non-nil, strip title and
2082 table of contents from output.
2084 EXT-PLIST, when provided, is a property list with external
2085 parameters overriding Org default settings, but still inferior to
2086 file-local settings.
2088 Return output file's name."
2089 (interactive)
2090 (let ((file (org-export-output-file-name ".txt" subtreep)))
2091 (org-export-to-file 'ascii file
2092 async subtreep visible-only body-only ext-plist)))
2094 ;;;###autoload
2095 (defun org-ascii-publish-to-ascii (plist filename pub-dir)
2096 "Publish an Org file to ASCII.
2098 FILENAME is the filename of the Org file to be published. PLIST
2099 is the property list for the given project. PUB-DIR is the
2100 publishing directory.
2102 Return output file name."
2103 (org-publish-org-to
2104 'ascii filename ".txt" `(:ascii-charset ascii ,@plist) pub-dir))
2106 ;;;###autoload
2107 (defun org-ascii-publish-to-latin1 (plist filename pub-dir)
2108 "Publish an Org file to Latin-1.
2110 FILENAME is the filename of the Org file to be published. PLIST
2111 is the property list for the given project. PUB-DIR is the
2112 publishing directory.
2114 Return output file name."
2115 (org-publish-org-to
2116 'ascii filename ".txt" `(:ascii-charset latin1 ,@plist) pub-dir))
2118 ;;;###autoload
2119 (defun org-ascii-publish-to-utf8 (plist filename pub-dir)
2120 "Publish an org file to UTF-8.
2122 FILENAME is the filename of the Org file to be published. PLIST
2123 is the property list for the given project. PUB-DIR is the
2124 publishing directory.
2126 Return output file name."
2127 (org-publish-org-to
2128 'ascii filename ".txt" `(:ascii-charset utf-8 ,@plist) pub-dir))
2131 (provide 'ox-ascii)
2133 ;; Local variables:
2134 ;; generated-autoload-file: "org-loaddefs.el"
2135 ;; coding: utf-8
2136 ;; End:
2138 ;;; ox-ascii.el ends here