Merge branch 'maint'
[org-mode/org-tableheadings.git] / lisp / ox-ascii.el
blob0b50bbe7cf14774980cb71a5d5b7c55b5eed4955
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 (org-looking-at-p "[ \t]*$")
515 (end-of-line)
516 (let ((column (current-column)))
517 (cond
518 ((>= column text-width) (throw 'exit contents))
519 ((> column max-width) (setq max-width column)))))
520 (forward-line)))
521 ;; Justify every line according to TEXT-WIDTH and
522 ;; MAX-WIDTH.
523 (let ((offset (/ (- text-width max-width)
524 (if (eq how 'right) 1 2))))
525 (if (zerop offset) (throw 'exit contents)
526 (while (not (eobp))
527 (unless (org-looking-at-p "[ \t]*$")
528 (org-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 (function
871 ;; Return LINK if it wasn't referenced so far, or nil.
872 ;; Update SEEN links along the way.
873 (lambda (link)
874 (let ((footprint
875 ;; Normalize description in footprints.
876 (cons (org-element-property :raw-link link)
877 (let ((contents (org-element-contents link)))
878 (and contents
879 (replace-regexp-in-string
880 "[ \r\t\n]+" " "
881 (org-trim
882 (org-element-interpret-data contents))))))))
883 ;; Ignore LINK if it hasn't been translated already.
884 ;; It can happen if it is located in an affiliated
885 ;; keyword that was ignored.
886 (when (and (org-string-nw-p
887 (gethash link (plist-get info :exported-data)))
888 (not (member footprint seen)))
889 (push footprint seen) link)))))
890 ;; If at a section, find parent headline, if any, in order to
891 ;; count links that might be in the title.
892 (headline
893 (if (eq (org-element-type element) 'headline) element
894 (or (org-export-get-parent-headline element) element))))
895 ;; Get all links in HEADLINE.
896 (org-element-map headline 'link
897 (lambda (l) (funcall unique-link-p l)) info nil nil t)))
899 (defun org-ascii--describe-links (links width info)
900 "Return a string describing a list of links.
902 LINKS is a list of link type objects, as returned by
903 `org-ascii--unique-links'. WIDTH is the text width allowed for
904 the output string. INFO is a plist used as a communication
905 channel."
906 (mapconcat
907 (lambda (link)
908 (let ((type (org-element-property :type link))
909 (anchor (let ((desc (org-element-contents link)))
910 (if desc (org-export-data desc info)
911 (org-element-property :raw-link link)))))
912 (cond
913 ;; Coderefs, radio links and fuzzy links are ignored.
914 ((member type '("coderef" "radio" "fuzzy")) nil)
915 ;; Id and custom-id links: Headlines refer to their numbering.
916 ((member type '("custom-id" "id"))
917 (let ((dest (org-export-resolve-id-link link info)))
918 (concat
919 (org-ascii--fill-string
920 (format
921 "[%s] %s"
922 anchor
923 (if (stringp dest) ; External file.
924 dest
925 (format
926 (org-ascii--translate "See section %s" info)
927 (if (org-export-numbered-headline-p dest info)
928 (mapconcat #'number-to-string
929 (org-export-get-headline-number dest info)
930 ".")
931 (org-export-data (org-element-property :title dest) info)))))
932 width info)
933 "\n\n")))
934 ;; Do not add a link that cannot be resolved and doesn't have
935 ;; any description: destination is already visible in the
936 ;; paragraph.
937 ((not (org-element-contents link)) nil)
938 ;; Do not add a link already handled by custom export
939 ;; functions.
940 ((let ((protocol (nth 2 (assoc type org-link-protocols)))
941 (path (org-element-property :path link)))
942 (and (functionp protocol)
943 (funcall protocol (org-link-unescape path) anchor 'ascii)))
944 nil)
946 (concat
947 (org-ascii--fill-string
948 (format "[%s] %s" anchor (org-element-property :raw-link link))
949 width info)
950 "\n\n")))))
951 links ""))
953 (defun org-ascii--checkbox (item info)
954 "Return checkbox string for ITEM or nil.
955 INFO is a plist used as a communication channel."
956 (let ((utf8p (eq (plist-get info :ascii-charset) 'utf-8)))
957 (case (org-element-property :checkbox item)
958 (on (if utf8p "☑ " "[X] "))
959 (off (if utf8p "☐ " "[ ] "))
960 (trans (if utf8p "☒ " "[-] ")))))
964 ;;; Template
966 (defun org-ascii-template--document-title (info)
967 "Return document title, as a string.
968 INFO is a plist used as a communication channel."
969 (let* ((text-width (plist-get info :ascii-text-width))
970 ;; Links in the title will not be resolved later, so we make
971 ;; sure their path is located right after them.
972 (info (org-combine-plists info '(:ascii-links-to-notes nil)))
973 (with-title (plist-get info :with-title))
974 (title (org-export-data
975 (when with-title (plist-get info :title)) info))
976 (subtitle (org-export-data
977 (when with-title (plist-get info :subtitle)) info))
978 (author (and (plist-get info :with-author)
979 (let ((auth (plist-get info :author)))
980 (and auth (org-export-data auth info)))))
981 (email (and (plist-get info :with-email)
982 (org-export-data (plist-get info :email) info)))
983 (date (and (plist-get info :with-date)
984 (org-export-data (org-export-get-date info) info))))
985 ;; There are two types of title blocks depending on the presence
986 ;; of a title to display.
987 (if (string= title "")
988 ;; Title block without a title. DATE is positioned at the top
989 ;; right of the document, AUTHOR to the top left and EMAIL
990 ;; just below.
991 (cond
992 ((and (org-string-nw-p date) (org-string-nw-p author))
993 (concat
994 author
995 (make-string (- text-width (string-width date) (string-width author))
996 ?\s)
997 date
998 (when (org-string-nw-p email) (concat "\n" email))
999 "\n\n\n"))
1000 ((and (org-string-nw-p date) (org-string-nw-p email))
1001 (concat
1002 email
1003 (make-string (- text-width (string-width date) (string-width email))
1004 ?\s)
1005 date "\n\n\n"))
1006 ((org-string-nw-p date)
1007 (concat
1008 (org-ascii--justify-lines date text-width 'right)
1009 "\n\n\n"))
1010 ((and (org-string-nw-p author) (org-string-nw-p email))
1011 (concat author "\n" email "\n\n\n"))
1012 ((org-string-nw-p author) (concat author "\n\n\n"))
1013 ((org-string-nw-p email) (concat email "\n\n\n")))
1014 ;; Title block with a title. Document's TITLE, along with the
1015 ;; AUTHOR and its EMAIL are both overlined and an underlined,
1016 ;; centered. Date is just below, also centered.
1017 (let* ((utf8p (eq (plist-get info :ascii-charset) 'utf-8))
1018 ;; Format TITLE. It may be filled if it is too wide,
1019 ;; that is wider than the two thirds of the total width.
1020 (title-len (min (apply #'max
1021 (mapcar #'length
1022 (org-split-string
1023 (concat title "\n" subtitle) "\n")))
1024 (/ (* 2 text-width) 3)))
1025 (formatted-title (org-ascii--fill-string title title-len info))
1026 (formatted-subtitle (when (org-string-nw-p subtitle)
1027 (org-ascii--fill-string subtitle title-len info)))
1028 (line
1029 (make-string
1030 (min (+ (max title-len
1031 (string-width (or author ""))
1032 (string-width (or email "")))
1034 text-width) (if utf8p ?━ ?_))))
1035 (org-ascii--justify-lines
1036 (concat line "\n"
1037 (unless utf8p "\n")
1038 (upcase formatted-title)
1039 (and formatted-subtitle (concat "\n" formatted-subtitle))
1040 (cond
1041 ((and (org-string-nw-p author) (org-string-nw-p email))
1042 (concat "\n\n" author "\n" email))
1043 ((org-string-nw-p author) (concat "\n\n" author))
1044 ((org-string-nw-p email) (concat "\n\n" email)))
1045 "\n" line
1046 (when (org-string-nw-p date) (concat "\n\n\n" date))
1047 "\n\n\n") text-width 'center)))))
1049 (defun org-ascii-inner-template (contents info)
1050 "Return complete document string after ASCII conversion.
1051 CONTENTS is the transcoded contents string. INFO is a plist
1052 holding export options."
1053 (org-element-normalize-string
1054 (let ((global-margin (plist-get info :ascii-global-margin)))
1055 (org-ascii--indent-string
1056 (concat
1057 ;; 1. Document's body.
1058 contents
1059 ;; 2. Footnote definitions.
1060 (let ((definitions (org-export-collect-footnote-definitions info))
1061 ;; Insert full links right inside the footnote definition
1062 ;; as they have no chance to be inserted later.
1063 (info (org-combine-plists info '(:ascii-links-to-notes nil))))
1064 (when definitions
1065 (concat
1066 "\n\n\n"
1067 (let ((title (org-ascii--translate "Footnotes" info)))
1068 (concat
1069 title "\n"
1070 (make-string
1071 (string-width title)
1072 (if (eq (plist-get info :ascii-charset) 'utf-8) ?─ ?_))))
1073 "\n\n"
1074 (let ((text-width (- (plist-get info :ascii-text-width)
1075 global-margin)))
1076 (mapconcat
1077 (lambda (ref)
1078 (let ((id (format "[%s] " (car ref))))
1079 ;; Distinguish between inline definitions and
1080 ;; full-fledged definitions.
1081 (org-trim
1082 (let ((def (nth 2 ref)))
1083 (if (org-element-map def org-element-all-elements
1084 #'identity info 'first-match)
1085 ;; Full-fledged definition: footnote ID is
1086 ;; inserted inside the first parsed
1087 ;; paragraph (FIRST), if any, to be sure
1088 ;; filling will take it into consideration.
1089 (let ((first (car (org-element-contents def))))
1090 (if (not (eq (org-element-type first) 'paragraph))
1091 (concat id "\n" (org-export-data def info))
1092 (push id (nthcdr 2 first))
1093 (org-export-data def info)))
1094 ;; Fill paragraph once footnote ID is inserted
1095 ;; in order to have a correct length for first
1096 ;; line.
1097 (org-ascii--fill-string
1098 (concat id (org-export-data def info))
1099 text-width info))))))
1100 definitions "\n\n"))))))
1101 global-margin))))
1103 (defun org-ascii-template (contents info)
1104 "Return complete document string after ASCII conversion.
1105 CONTENTS is the transcoded contents string. INFO is a plist
1106 holding export options."
1107 (let ((global-margin (plist-get info :ascii-global-margin)))
1108 (concat
1109 ;; Build title block.
1110 (org-ascii--indent-string
1111 (concat (org-ascii-template--document-title info)
1112 ;; 2. Table of contents.
1113 (let ((depth (plist-get info :with-toc)))
1114 (when depth
1115 (concat
1116 (org-ascii--build-toc info (and (wholenump depth) depth))
1117 "\n\n\n"))))
1118 global-margin)
1119 ;; Document's body.
1120 contents
1121 ;; Creator. Justify it to the bottom right.
1122 (and (plist-get info :with-creator)
1123 (org-ascii--indent-string
1124 (let ((text-width
1125 (- (plist-get info :ascii-text-width) global-margin)))
1126 (concat
1127 "\n\n\n"
1128 (org-ascii--fill-string
1129 (plist-get info :creator) text-width info 'right)))
1130 global-margin)))))
1132 (defun org-ascii--translate (s info)
1133 "Translate string S according to specified language and charset.
1134 INFO is a plist used as a communication channel."
1135 (let ((charset (intern (format ":%s" (plist-get info :ascii-charset)))))
1136 (org-export-translate s charset info)))
1140 ;;; Transcode Functions
1142 ;;;; Bold
1144 (defun org-ascii-bold (_bold contents _info)
1145 "Transcode BOLD from Org to ASCII.
1146 CONTENTS is the text with bold markup. INFO is a plist holding
1147 contextual information."
1148 (format "*%s*" contents))
1151 ;;;; Center Block
1153 (defun org-ascii-center-block (_center-block contents _info)
1154 "Transcode a CENTER-BLOCK element from Org to ASCII.
1155 CONTENTS holds the contents of the block. INFO is a plist
1156 holding contextual information."
1157 ;; Center has already been taken care of at a lower level, so
1158 ;; there's nothing left to do.
1159 contents)
1162 ;;;; Clock
1164 (defun org-ascii-clock (clock _contents info)
1165 "Transcode a CLOCK object from Org to ASCII.
1166 CONTENTS is nil. INFO is a plist holding contextual
1167 information."
1168 (org-ascii--justify-element
1169 (concat org-clock-string " "
1170 (org-timestamp-translate (org-element-property :value clock))
1171 (let ((time (org-element-property :duration clock)))
1172 (and time
1173 (concat " => "
1174 (apply 'format
1175 "%2s:%02s"
1176 (org-split-string time ":"))))))
1177 clock info))
1180 ;;;; Code
1182 (defun org-ascii-code (code _contents info)
1183 "Return a CODE object from Org to ASCII.
1184 CONTENTS is nil. INFO is a plist holding contextual
1185 information."
1186 (format (plist-get info :ascii-verbatim-format)
1187 (org-element-property :value code)))
1190 ;;;; Drawer
1192 (defun org-ascii-drawer (drawer contents info)
1193 "Transcode a DRAWER element from Org to ASCII.
1194 CONTENTS holds the contents of the block. INFO is a plist
1195 holding contextual information."
1196 (let ((name (org-element-property :drawer-name drawer))
1197 (width (org-ascii--current-text-width drawer info)))
1198 (funcall (plist-get info :ascii-format-drawer-function)
1199 name contents width)))
1202 ;;;; Dynamic Block
1204 (defun org-ascii-dynamic-block (_dynamic-block contents _info)
1205 "Transcode a DYNAMIC-BLOCK element from Org to ASCII.
1206 CONTENTS holds the contents of the block. INFO is a plist
1207 holding contextual information."
1208 contents)
1211 ;;;; Entity
1213 (defun org-ascii-entity (entity _contents info)
1214 "Transcode an ENTITY object from Org to ASCII.
1215 CONTENTS are the definition itself. INFO is a plist holding
1216 contextual information."
1217 (org-element-property
1218 (intern (concat ":" (symbol-name (plist-get info :ascii-charset))))
1219 entity))
1222 ;;;; Example Block
1224 (defun org-ascii-example-block (example-block _contents info)
1225 "Transcode a EXAMPLE-BLOCK element from Org to ASCII.
1226 CONTENTS is nil. INFO is a plist holding contextual information."
1227 (org-ascii--justify-element
1228 (org-ascii--box-string
1229 (org-export-format-code-default example-block info) info)
1230 example-block info))
1233 ;;;; Export Snippet
1235 (defun org-ascii-export-snippet (export-snippet _contents _info)
1236 "Transcode a EXPORT-SNIPPET object from Org to ASCII.
1237 CONTENTS is nil. INFO is a plist holding contextual information."
1238 (when (eq (org-export-snippet-backend export-snippet) 'ascii)
1239 (org-element-property :value export-snippet)))
1242 ;;;; Export Block
1244 (defun org-ascii-export-block (export-block _contents info)
1245 "Transcode a EXPORT-BLOCK element from Org to ASCII.
1246 CONTENTS is nil. INFO is a plist holding contextual information."
1247 (when (string= (org-element-property :type export-block) "ASCII")
1248 (org-ascii--justify-element
1249 (org-element-property :value export-block) export-block info)))
1252 ;;;; Fixed Width
1254 (defun org-ascii-fixed-width (fixed-width _contents info)
1255 "Transcode a FIXED-WIDTH element from Org to ASCII.
1256 CONTENTS is nil. INFO is a plist holding contextual information."
1257 (org-ascii--justify-element
1258 (org-ascii--box-string
1259 (org-remove-indentation
1260 (org-element-property :value fixed-width)) info)
1261 fixed-width info))
1264 ;;;; Footnote Definition
1266 ;; Footnote Definitions are ignored. They are compiled at the end of
1267 ;; the document, by `org-ascii-inner-template'.
1270 ;;;; Footnote Reference
1272 (defun org-ascii-footnote-reference (footnote-reference _contents info)
1273 "Transcode a FOOTNOTE-REFERENCE element from Org to ASCII.
1274 CONTENTS is nil. INFO is a plist holding contextual information."
1275 (format "[%s]" (org-export-get-footnote-number footnote-reference info)))
1278 ;;;; Headline
1280 (defun org-ascii-headline (headline contents info)
1281 "Transcode a HEADLINE element from Org to ASCII.
1282 CONTENTS holds the contents of the headline. INFO is a plist
1283 holding contextual information."
1284 ;; Don't export footnote section, which will be handled at the end
1285 ;; of the template.
1286 (unless (org-element-property :footnote-section-p headline)
1287 (let* ((low-level-rank (org-export-low-level-p headline info))
1288 (width (org-ascii--current-text-width headline info))
1289 ;; Blank lines between headline and its contents.
1290 ;; `org-ascii-headline-spacing', when set, overwrites
1291 ;; original buffer's spacing.
1292 (pre-blanks
1293 (make-string
1294 (or (car (plist-get info :ascii-headline-spacing))
1295 (org-element-property :pre-blank headline))
1296 ?\n))
1297 ;; Even if HEADLINE has no section, there might be some
1298 ;; links in its title that we shouldn't forget to describe.
1299 (links
1300 (unless (or (eq (caar (org-element-contents headline)) 'section))
1301 (let ((title (org-element-property :title headline)))
1302 (when (consp title)
1303 (org-ascii--describe-links
1304 (org-ascii--unique-links title info) width info))))))
1305 ;; Deep subtree: export it as a list item.
1306 (if low-level-rank
1307 (concat
1308 ;; Bullet.
1309 (let ((bullets (cdr (assq (plist-get info :ascii-charset)
1310 (plist-get info :ascii-bullets)))))
1311 (char-to-string
1312 (nth (mod (1- low-level-rank) (length bullets)) bullets)))
1314 ;; Title.
1315 (org-ascii--build-title headline info width) "\n"
1316 ;; Contents, indented by length of bullet.
1317 pre-blanks
1318 (org-ascii--indent-string
1319 (concat contents
1320 (when (org-string-nw-p links) (concat "\n\n" links)))
1322 ;; Else: Standard headline.
1323 (concat
1324 (org-ascii--build-title headline info width 'underline)
1325 "\n" pre-blanks
1326 (concat (when (org-string-nw-p links) links) contents))))))
1329 ;;;; Horizontal Rule
1331 (defun org-ascii-horizontal-rule (horizontal-rule _contents info)
1332 "Transcode an HORIZONTAL-RULE object from Org to ASCII.
1333 CONTENTS is nil. INFO is a plist holding contextual
1334 information."
1335 (let ((text-width (org-ascii--current-text-width horizontal-rule info))
1336 (spec-width
1337 (org-export-read-attribute :attr_ascii horizontal-rule :width)))
1338 (org-ascii--justify-lines
1339 (make-string (if (and spec-width (string-match "^[0-9]+$" spec-width))
1340 (string-to-number spec-width)
1341 text-width)
1342 (if (eq (plist-get info :ascii-charset) 'utf-8) ?― ?-))
1343 text-width 'center)))
1346 ;;;; Inline Src Block
1348 (defun org-ascii-inline-src-block (inline-src-block _contents info)
1349 "Transcode an INLINE-SRC-BLOCK element from Org to ASCII.
1350 CONTENTS holds the contents of the item. INFO is a plist holding
1351 contextual information."
1352 (format (plist-get info :ascii-verbatim-format)
1353 (org-element-property :value inline-src-block)))
1356 ;;;; Inlinetask
1358 (defun org-ascii-format-inlinetask-default
1359 (_todo _type _priority _name _tags contents width inlinetask info)
1360 "Format an inline task element for ASCII export.
1361 See `org-ascii-format-inlinetask-function' for a description
1362 of the parameters."
1363 (let* ((utf8p (eq (plist-get info :ascii-charset) 'utf-8))
1364 (width (or width (plist-get info :ascii-inlinetask-width))))
1365 (org-ascii--indent-string
1366 (concat
1367 ;; Top line, with an additional blank line if not in UTF-8.
1368 (make-string width (if utf8p ?━ ?_)) "\n"
1369 (unless utf8p (concat (make-string width ? ) "\n"))
1370 ;; Add title. Fill it if wider than inlinetask.
1371 (let ((title (org-ascii--build-title inlinetask info width)))
1372 (if (<= (string-width title) width) title
1373 (org-ascii--fill-string title width info)))
1374 "\n"
1375 ;; If CONTENTS is not empty, insert it along with
1376 ;; a separator.
1377 (when (org-string-nw-p contents)
1378 (concat (make-string width (if utf8p ?─ ?-)) "\n" contents))
1379 ;; Bottom line.
1380 (make-string width (if utf8p ?━ ?_)))
1381 ;; Flush the inlinetask to the right.
1382 (- (plist-get info :ascii-text-width) (plist-get info :ascii-global-margin)
1383 (if (not (org-export-get-parent-headline inlinetask)) 0
1384 (plist-get info :ascii-inner-margin))
1385 (org-ascii--current-text-width inlinetask info)))))
1387 (defun org-ascii-inlinetask (inlinetask contents info)
1388 "Transcode an INLINETASK element from Org to ASCII.
1389 CONTENTS holds the contents of the block. INFO is a plist
1390 holding contextual information."
1391 (let ((width (org-ascii--current-text-width inlinetask info)))
1392 (funcall (plist-get info :ascii-format-inlinetask-function)
1393 ;; todo.
1394 (and (plist-get info :with-todo-keywords)
1395 (let ((todo (org-element-property
1396 :todo-keyword inlinetask)))
1397 (and todo (org-export-data todo info))))
1398 ;; todo-type
1399 (org-element-property :todo-type inlinetask)
1400 ;; priority
1401 (and (plist-get info :with-priority)
1402 (org-element-property :priority inlinetask))
1403 ;; title
1404 (org-export-data (org-element-property :title inlinetask) info)
1405 ;; tags
1406 (and (plist-get info :with-tags)
1407 (org-element-property :tags inlinetask))
1408 ;; contents and width
1409 contents width inlinetask info)))
1412 ;;;; Italic
1414 (defun org-ascii-italic (_italic contents _info)
1415 "Transcode italic from Org to ASCII.
1416 CONTENTS is the text with italic markup. INFO is a plist holding
1417 contextual information."
1418 (format "/%s/" contents))
1421 ;;;; Item
1423 (defun org-ascii-item (item contents info)
1424 "Transcode an ITEM element from Org to ASCII.
1425 CONTENTS holds the contents of the item. INFO is a plist holding
1426 contextual information."
1427 (let* ((utf8p (eq (plist-get info :ascii-charset) 'utf-8))
1428 (checkbox (org-ascii--checkbox item info))
1429 (list-type (org-element-property :type (org-export-get-parent item)))
1430 (bullet
1431 ;; First parent of ITEM is always the plain-list. Get
1432 ;; `:type' property from it.
1433 (org-list-bullet-string
1434 (case list-type
1435 (descriptive
1436 (concat checkbox
1437 (org-export-data (org-element-property :tag item) info)
1438 ": "))
1439 (ordered
1440 ;; Return correct number for ITEM, paying attention to
1441 ;; counters.
1442 (let* ((struct (org-element-property :structure item))
1443 (bul (org-element-property :bullet item))
1444 (num (number-to-string
1445 (car (last (org-list-get-item-number
1446 (org-element-property :begin item)
1447 struct
1448 (org-list-prevs-alist struct)
1449 (org-list-parents-alist struct)))))))
1450 (replace-regexp-in-string "[0-9]+" num bul)))
1451 (t (let ((bul (org-element-property :bullet item)))
1452 ;; Change bullets into more visible form if UTF-8 is active.
1453 (if (not utf8p) bul
1454 (replace-regexp-in-string
1455 "-" "•"
1456 (replace-regexp-in-string
1457 "+" "⁃"
1458 (replace-regexp-in-string "*" "‣" bul))))))))))
1459 (concat
1460 bullet
1461 (unless (eq list-type 'descriptive) checkbox)
1462 ;; Contents: Pay attention to indentation. Note: check-boxes are
1463 ;; already taken care of at the paragraph level so they don't
1464 ;; interfere with indentation.
1465 (let ((contents (org-ascii--indent-string contents (string-width bullet))))
1466 (if (eq (org-element-type (car (org-element-contents item))) 'paragraph)
1467 (org-trim contents)
1468 (concat "\n" contents))))))
1471 ;;;; Keyword
1473 (defun org-ascii-keyword (keyword _contents info)
1474 "Transcode a KEYWORD element from Org to ASCII.
1475 CONTENTS is nil. INFO is a plist holding contextual
1476 information."
1477 (let ((key (org-element-property :key keyword))
1478 (value (org-element-property :value keyword)))
1479 (cond
1480 ((string= key "ASCII") (org-ascii--justify-element value keyword info))
1481 ((string= key "TOC")
1482 (org-ascii--justify-element
1483 (let ((case-fold-search t))
1484 (cond
1485 ((org-string-match-p "\\<headlines\\>" value)
1486 (let ((depth (and (string-match "\\<[0-9]+\\>" value)
1487 (string-to-number (match-string 0 value))))
1488 (localp (org-string-match-p "\\<local\\>" value)))
1489 (org-ascii--build-toc info depth keyword localp)))
1490 ((org-string-match-p "\\<tables\\>" value)
1491 (org-ascii--list-tables keyword info))
1492 ((org-string-match-p "\\<listings\\>" value)
1493 (org-ascii--list-listings keyword info))))
1494 keyword info)))))
1497 ;;;; Latex Environment
1499 (defun org-ascii-latex-environment (latex-environment _contents info)
1500 "Transcode a LATEX-ENVIRONMENT element from Org to ASCII.
1501 CONTENTS is nil. INFO is a plist holding contextual
1502 information."
1503 (when (plist-get info :with-latex)
1504 (org-ascii--justify-element
1505 (org-remove-indentation (org-element-property :value latex-environment))
1506 latex-environment info)))
1509 ;;;; Latex Fragment
1511 (defun org-ascii-latex-fragment (latex-fragment _contents info)
1512 "Transcode a LATEX-FRAGMENT object from Org to ASCII.
1513 CONTENTS is nil. INFO is a plist holding contextual
1514 information."
1515 (when (plist-get info :with-latex)
1516 (org-element-property :value latex-fragment)))
1519 ;;;; Line Break
1521 (defun org-ascii-line-break (_line-break _contents _info)
1522 "Transcode a LINE-BREAK object from Org to ASCII.
1523 CONTENTS is nil. INFO is a plist holding contextual
1524 information." hard-newline)
1527 ;;;; Link
1529 (defun org-ascii-link (link desc info)
1530 "Transcode a LINK object from Org to ASCII.
1532 DESC is the description part of the link, or the empty string.
1533 INFO is a plist holding contextual information."
1534 (let ((type (org-element-property :type link)))
1535 (cond
1536 ((org-export-custom-protocol-maybe link desc 'ascii))
1537 ((string= type "coderef")
1538 (let ((ref (org-element-property :path link)))
1539 (format (org-export-get-coderef-format ref desc)
1540 (org-export-resolve-coderef ref info))))
1541 ;; Do not apply a special syntax on radio links. Though, use
1542 ;; transcoded target's contents as output.
1543 ((string= type "radio") desc)
1544 ;; Do not apply a special syntax on fuzzy links pointing to
1545 ;; targets.
1546 ((string= type "fuzzy")
1547 (let ((destination (org-export-resolve-fuzzy-link link info)))
1548 (if (org-string-nw-p desc) desc
1549 (when destination
1550 (let ((number
1551 (org-export-get-ordinal
1552 destination info nil 'org-ascii--has-caption-p)))
1553 (if number
1554 (if (atom number) (number-to-string number)
1555 (mapconcat #'number-to-string number "."))
1556 ;; Unnumbered headline.
1557 (when (eq 'headline (org-element-type destination))
1558 (format "[%s]"
1559 (org-export-data
1560 (org-element-property :title destination)
1561 info)))))))))
1563 (let ((raw-link (org-element-property :raw-link link)))
1564 (if (not (org-string-nw-p desc)) (format "[%s]" raw-link)
1565 (concat (format "[%s]" desc)
1566 (and (not (plist-get info :ascii-links-to-notes))
1567 (format " (%s)" raw-link)))))))))
1570 ;;;; Node Properties
1572 (defun org-ascii-node-property (node-property _contents _info)
1573 "Transcode a NODE-PROPERTY element from Org to ASCII.
1574 CONTENTS is nil. INFO is a plist holding contextual
1575 information."
1576 (format "%s:%s"
1577 (org-element-property :key node-property)
1578 (let ((value (org-element-property :value node-property)))
1579 (if value (concat " " value) ""))))
1582 ;;;; Paragraph
1584 (defun org-ascii-paragraph (paragraph contents info)
1585 "Transcode a PARAGRAPH element from Org to ASCII.
1586 CONTENTS is the contents of the paragraph, as a string. INFO is
1587 the plist used as a communication channel."
1588 (org-ascii--justify-element
1589 (let ((indented-line-width (plist-get info :ascii-indented-line-width)))
1590 (if (not (wholenump indented-line-width)) contents
1591 (concat
1592 ;; Do not indent first paragraph in a section.
1593 (unless (and (not (org-export-get-previous-element paragraph info))
1594 (eq (org-element-type (org-export-get-parent paragraph))
1595 'section))
1596 (make-string indented-line-width ?\s))
1597 (replace-regexp-in-string "\\`[ \t]+" "" contents))))
1598 paragraph info))
1601 ;;;; Plain List
1603 (defun org-ascii-plain-list (plain-list contents info)
1604 "Transcode a PLAIN-LIST element from Org to ASCII.
1605 CONTENTS is the contents of the list. INFO is a plist holding
1606 contextual information."
1607 (let ((margin (plist-get info :ascii-list-margin)))
1608 (if (or (< margin 1)
1609 (eq (org-element-type (org-export-get-parent plain-list)) 'item))
1610 contents
1611 (org-ascii--indent-string contents margin))))
1614 ;;;; Plain Text
1616 (defun org-ascii-plain-text (text info)
1617 "Transcode a TEXT string from Org to ASCII.
1618 INFO is a plist used as a communication channel."
1619 (let ((utf8p (eq (plist-get info :ascii-charset) 'utf-8)))
1620 (when (and utf8p (plist-get info :with-smart-quotes))
1621 (setq text (org-export-activate-smart-quotes text :utf-8 info)))
1622 (if (not (plist-get info :with-special-strings)) text
1623 (setq text (replace-regexp-in-string "\\\\-" "" text))
1624 (if (not utf8p) text
1625 ;; Usual replacements in utf-8 with proper option set.
1626 (replace-regexp-in-string
1627 "\\.\\.\\." "…"
1628 (replace-regexp-in-string
1629 "--" "–"
1630 (replace-regexp-in-string "---" "—" text)))))))
1633 ;;;; Planning
1635 (defun org-ascii-planning (planning _contents info)
1636 "Transcode a PLANNING element from Org to ASCII.
1637 CONTENTS is nil. INFO is a plist used as a communication
1638 channel."
1639 (org-ascii--justify-element
1640 (mapconcat
1641 #'identity
1642 (delq nil
1643 (list (let ((closed (org-element-property :closed planning)))
1644 (when closed
1645 (concat org-closed-string " "
1646 (org-timestamp-translate closed))))
1647 (let ((deadline (org-element-property :deadline planning)))
1648 (when deadline
1649 (concat org-deadline-string " "
1650 (org-timestamp-translate deadline))))
1651 (let ((scheduled (org-element-property :scheduled planning)))
1652 (when scheduled
1653 (concat org-scheduled-string " "
1654 (org-timestamp-translate scheduled))))))
1655 " ")
1656 planning info))
1659 ;;;; Property Drawer
1661 (defun org-ascii-property-drawer (property-drawer contents info)
1662 "Transcode a PROPERTY-DRAWER element from Org to ASCII.
1663 CONTENTS holds the contents of the drawer. INFO is a plist
1664 holding contextual information."
1665 (and (org-string-nw-p contents)
1666 (org-ascii--justify-element contents property-drawer info)))
1669 ;;;; Quote Block
1671 (defun org-ascii-quote-block (_quote-block contents info)
1672 "Transcode a QUOTE-BLOCK element from Org to ASCII.
1673 CONTENTS holds the contents of the block. INFO is a plist
1674 holding contextual information."
1675 (org-ascii--indent-string contents (plist-get info :ascii-quote-margin)))
1678 ;;;; Radio Target
1680 (defun org-ascii-radio-target (_radio-target contents _info)
1681 "Transcode a RADIO-TARGET object from Org to ASCII.
1682 CONTENTS is the contents of the target. INFO is a plist holding
1683 contextual information."
1684 contents)
1687 ;;;; Section
1689 (defun org-ascii-section (section contents info)
1690 "Transcode a SECTION element from Org to ASCII.
1691 CONTENTS is the contents of the section. INFO is a plist holding
1692 contextual information."
1693 (org-ascii--indent-string
1694 (concat
1695 contents
1696 (when (plist-get info :ascii-links-to-notes)
1697 ;; Add list of links at the end of SECTION.
1698 (let ((links (org-ascii--describe-links
1699 (org-ascii--unique-links section info)
1700 (org-ascii--current-text-width section info) info)))
1701 ;; Separate list of links and section contents.
1702 (when (org-string-nw-p links) (concat "\n\n" links)))))
1703 ;; Do not apply inner margin if parent headline is low level.
1704 (let ((headline (org-export-get-parent-headline section)))
1705 (if (or (not headline) (org-export-low-level-p headline info)) 0
1706 (plist-get info :ascii-inner-margin)))))
1709 ;;;; Special Block
1711 (defun org-ascii-special-block (_special-block contents _info)
1712 "Transcode a SPECIAL-BLOCK element from Org to ASCII.
1713 CONTENTS holds the contents of the block. INFO is a plist
1714 holding contextual information."
1715 ;; "JUSTIFYLEFT" and "JUSTFYRIGHT" have already been taken care of
1716 ;; at a lower level. There is no other special block type to
1717 ;; handle.
1718 contents)
1721 ;;;; Src Block
1723 (defun org-ascii-src-block (src-block _contents info)
1724 "Transcode a SRC-BLOCK element from Org to ASCII.
1725 CONTENTS holds the contents of the item. INFO is a plist holding
1726 contextual information."
1727 (let ((caption (org-ascii--build-caption src-block info))
1728 (caption-above-p (plist-get info :ascii-caption-above))
1729 (code (org-export-format-code-default src-block info)))
1730 (if (equal code "") ""
1731 (org-ascii--justify-element
1732 (concat
1733 (and caption caption-above-p (concat caption "\n"))
1734 (org-ascii--box-string code info)
1735 (and caption (not caption-above-p) (concat "\n" caption)))
1736 src-block info))))
1739 ;;;; Statistics Cookie
1741 (defun org-ascii-statistics-cookie (statistics-cookie _contents _info)
1742 "Transcode a STATISTICS-COOKIE object from Org to ASCII.
1743 CONTENTS is nil. INFO is a plist holding contextual information."
1744 (org-element-property :value statistics-cookie))
1747 ;;;; Subscript
1749 (defun org-ascii-subscript (subscript contents _info)
1750 "Transcode a SUBSCRIPT object from Org to ASCII.
1751 CONTENTS is the contents of the object. INFO is a plist holding
1752 contextual information."
1753 (if (org-element-property :use-brackets-p subscript)
1754 (format "_{%s}" contents)
1755 (format "_%s" contents)))
1758 ;;;; Superscript
1760 (defun org-ascii-superscript (superscript contents _info)
1761 "Transcode a SUPERSCRIPT object from Org to ASCII.
1762 CONTENTS is the contents of the object. INFO is a plist holding
1763 contextual information."
1764 (if (org-element-property :use-brackets-p superscript)
1765 (format "^{%s}" contents)
1766 (format "^%s" contents)))
1769 ;;;; Strike-through
1771 (defun org-ascii-strike-through (_strike-through contents _info)
1772 "Transcode STRIKE-THROUGH from Org to ASCII.
1773 CONTENTS is text with strike-through markup. INFO is a plist
1774 holding contextual information."
1775 (format "+%s+" contents))
1778 ;;;; Table
1780 (defun org-ascii-table (table contents info)
1781 "Transcode a TABLE element from Org to ASCII.
1782 CONTENTS is the contents of the table. INFO is a plist holding
1783 contextual information."
1784 (let ((caption (org-ascii--build-caption table info))
1785 (caption-above-p (plist-get info :ascii-caption-above)))
1786 (org-ascii--justify-element
1787 (concat
1788 ;; Possibly add a caption string above.
1789 (and caption caption-above-p (concat caption "\n"))
1790 ;; Insert table. Note: "table.el" tables are left unmodified.
1791 (cond ((eq (org-element-property :type table) 'org) contents)
1792 ((and (plist-get info :ascii-table-use-ascii-art)
1793 (eq (plist-get info :ascii-charset) 'utf-8)
1794 (require 'ascii-art-to-unicode nil t))
1795 (with-temp-buffer
1796 (insert (org-remove-indentation
1797 (org-element-property :value table)))
1798 (goto-char (point-min))
1799 (aa2u)
1800 (goto-char (point-max))
1801 (skip-chars-backward " \r\t\n")
1802 (buffer-substring (point-min) (point))))
1803 (t (org-remove-indentation (org-element-property :value table))))
1804 ;; Possible add a caption string below.
1805 (and (not caption-above-p) caption))
1806 table info)))
1809 ;;;; Table Cell
1811 (defun org-ascii--table-cell-width (table-cell info)
1812 "Return width of TABLE-CELL.
1814 INFO is a plist used as a communication channel.
1816 Width of a cell is determined either by a width cookie in the
1817 same column as the cell, or by the maximum cell's length in that
1818 column.
1820 When `org-ascii-table-widen-columns' is non-nil, width cookies
1821 are ignored."
1822 (let* ((row (org-export-get-parent table-cell))
1823 (table (org-export-get-parent row))
1824 (col (let ((cells (org-element-contents row)))
1825 (- (length cells) (length (memq table-cell cells)))))
1826 (cache
1827 (or (plist-get info :ascii-table-cell-width-cache)
1828 (plist-get (setq info
1829 (plist-put info :ascii-table-cell-width-cache
1830 (make-hash-table :test 'equal)))
1831 :ascii-table-cell-width-cache)))
1832 (key (cons table col))
1833 (widenp (plist-get info :ascii-table-widen-columns)))
1834 (or (gethash key cache)
1835 (puthash
1837 (let ((cookie-width (org-export-table-cell-width table-cell info)))
1838 (or (and (not widenp) cookie-width)
1839 (let ((contents-width
1840 (let ((max-width 0))
1841 (org-element-map table 'table-row
1842 (lambda (row)
1843 (setq max-width
1844 (max (string-width
1845 (org-export-data
1846 (org-element-contents
1847 (elt (org-element-contents row) col))
1848 info))
1849 max-width)))
1850 info)
1851 max-width)))
1852 (cond ((not cookie-width) contents-width)
1853 (widenp (max cookie-width contents-width))
1854 (t cookie-width)))))
1855 cache))))
1857 (defun org-ascii-table-cell (table-cell contents info)
1858 "Transcode a TABLE-CELL object from Org to ASCII.
1859 CONTENTS is the cell contents. INFO is a plist used as
1860 a communication channel."
1861 ;; Determine column width. When `org-ascii-table-widen-columns'
1862 ;; is nil and some width cookie has set it, use that value.
1863 ;; Otherwise, compute the maximum width among transcoded data of
1864 ;; each cell in the column.
1865 (let ((width (org-ascii--table-cell-width table-cell info)))
1866 ;; When contents are too large, truncate them.
1867 (unless (or (plist-get info :ascii-table-widen-columns)
1868 (<= (string-width (or contents "")) width))
1869 (setq contents (concat (substring contents 0 (- width 2)) "=>")))
1870 ;; Align contents correctly within the cell.
1871 (let* ((indent-tabs-mode nil)
1872 (data
1873 (when contents
1874 (org-ascii--justify-lines
1875 contents width
1876 (org-export-table-cell-alignment table-cell info)))))
1877 (setq contents
1878 (concat data
1879 (make-string (- width (string-width (or data ""))) ?\s))))
1880 ;; Return cell.
1881 (concat (format " %s " contents)
1882 (when (memq 'right (org-export-table-cell-borders table-cell info))
1883 (if (eq (plist-get info :ascii-charset) 'utf-8) "│" "|")))))
1886 ;;;; Table Row
1888 (defun org-ascii-table-row (table-row contents info)
1889 "Transcode a TABLE-ROW element from Org to ASCII.
1890 CONTENTS is the row contents. INFO is a plist used as
1891 a communication channel."
1892 (when (eq (org-element-property :type table-row) 'standard)
1893 (let ((build-hline
1894 (function
1895 (lambda (lcorner horiz vert rcorner)
1896 (concat
1897 (apply
1898 'concat
1899 (org-element-map table-row 'table-cell
1900 (lambda (cell)
1901 (let ((width (org-ascii--table-cell-width cell info))
1902 (borders (org-export-table-cell-borders cell info)))
1903 (concat
1904 ;; In order to know if CELL starts the row, do
1905 ;; not compare it with the first cell in the
1906 ;; row as there might be a special column.
1907 ;; Instead, compare it with first exportable
1908 ;; cell, obtained with `org-element-map'.
1909 (when (and (memq 'left borders)
1910 (eq (org-element-map table-row 'table-cell
1911 'identity info t)
1912 cell))
1913 lcorner)
1914 (make-string (+ 2 width) (string-to-char horiz))
1915 (cond
1916 ((not (memq 'right borders)) nil)
1917 ((eq (car (last (org-element-contents table-row))) cell)
1918 rcorner)
1919 (t vert)))))
1920 info)) "\n"))))
1921 (utf8p (eq (plist-get info :ascii-charset) 'utf-8))
1922 (borders (org-export-table-cell-borders
1923 (org-element-map table-row 'table-cell 'identity info t)
1924 info)))
1925 (concat (cond
1926 ((and (memq 'top borders) (or utf8p (memq 'above borders)))
1927 (if utf8p (funcall build-hline "┍" "━" "┯" "┑")
1928 (funcall build-hline "+" "-" "+" "+")))
1929 ((memq 'above borders)
1930 (if utf8p (funcall build-hline "├" "─" "┼" "┤")
1931 (funcall build-hline "+" "-" "+" "+"))))
1932 (when (memq 'left borders) (if utf8p "│" "|"))
1933 contents "\n"
1934 (when (and (memq 'bottom borders) (or utf8p (memq 'below borders)))
1935 (if utf8p (funcall build-hline "┕" "━" "┷" "┙")
1936 (funcall build-hline "+" "-" "+" "+")))))))
1939 ;;;; Timestamp
1941 (defun org-ascii-timestamp (timestamp _contents info)
1942 "Transcode a TIMESTAMP object from Org to ASCII.
1943 CONTENTS is nil. INFO is a plist holding contextual information."
1944 (org-ascii-plain-text (org-timestamp-translate timestamp) info))
1947 ;;;; Underline
1949 (defun org-ascii-underline (_underline contents _info)
1950 "Transcode UNDERLINE from Org to ASCII.
1951 CONTENTS is the text with underline markup. INFO is a plist
1952 holding contextual information."
1953 (format "_%s_" contents))
1956 ;;;; Verbatim
1958 (defun org-ascii-verbatim (verbatim _contents info)
1959 "Return a VERBATIM object from Org to ASCII.
1960 CONTENTS is nil. INFO is a plist holding contextual information."
1961 (format (plist-get info :ascii-verbatim-format)
1962 (org-element-property :value verbatim)))
1965 ;;;; Verse Block
1967 (defun org-ascii-verse-block (verse-block contents info)
1968 "Transcode a VERSE-BLOCK element from Org to ASCII.
1969 CONTENTS is verse block contents. INFO is a plist holding
1970 contextual information."
1971 (org-ascii--indent-string
1972 (org-ascii--justify-element contents verse-block info)
1973 (plist-get info :ascii-quote-margin)))
1977 ;;; Filters
1979 (defun org-ascii-filter-headline-blank-lines (headline _backend info)
1980 "Filter controlling number of blank lines after a headline.
1982 HEADLINE is a string representing a transcoded headline. BACKEND
1983 is symbol specifying back-end used for export. INFO is plist
1984 containing the communication channel.
1986 This function only applies to `ascii' back-end. See
1987 `org-ascii-headline-spacing' for information."
1988 (let ((headline-spacing (plist-get info :ascii-headline-spacing)))
1989 (if (not headline-spacing) headline
1990 (let ((blanks (make-string (1+ (cdr headline-spacing)) ?\n)))
1991 (replace-regexp-in-string "\n\\(?:\n[ \t]*\\)*\\'" blanks headline)))))
1993 (defun org-ascii-filter-paragraph-spacing (tree _backend info)
1994 "Filter controlling number of blank lines between paragraphs.
1996 TREE is the parse tree. BACKEND is the symbol specifying
1997 back-end used for export. INFO is a plist used as
1998 a communication channel.
2000 See `org-ascii-paragraph-spacing' for information."
2001 (let ((paragraph-spacing (plist-get info :ascii-paragraph-spacing)))
2002 (when (wholenump paragraph-spacing)
2003 (org-element-map tree 'paragraph
2004 (lambda (p)
2005 (when (eq (org-element-type (org-export-get-next-element p info))
2006 'paragraph)
2007 (org-element-put-property p :post-blank paragraph-spacing))))))
2008 tree)
2010 (defun org-ascii-filter-comment-spacing (tree _backend info)
2011 "Filter removing blank lines between comments.
2012 TREE is the parse tree. BACKEND is the symbol specifying
2013 back-end used for export. INFO is a plist used as
2014 a communication channel."
2015 (org-element-map tree '(comment comment-block)
2016 (lambda (c)
2017 (when (memq (org-element-type (org-export-get-next-element c info))
2018 '(comment comment-block))
2019 (org-element-put-property c :post-blank 0))))
2020 tree)
2024 ;;; End-user functions
2026 ;;;###autoload
2027 (defun org-ascii-export-as-ascii
2028 (&optional async subtreep visible-only body-only ext-plist)
2029 "Export current buffer to a text buffer.
2031 If narrowing is active in the current buffer, only export its
2032 narrowed part.
2034 If a region is active, export that region.
2036 A non-nil optional argument ASYNC means the process should happen
2037 asynchronously. The resulting buffer should be accessible
2038 through the `org-export-stack' interface.
2040 When optional argument SUBTREEP is non-nil, export the sub-tree
2041 at point, extracting information from the headline properties
2042 first.
2044 When optional argument VISIBLE-ONLY is non-nil, don't export
2045 contents of hidden elements.
2047 When optional argument BODY-ONLY is non-nil, strip title and
2048 table of contents from output.
2050 EXT-PLIST, when provided, is a property list with external
2051 parameters overriding Org default settings, but still inferior to
2052 file-local settings.
2054 Export is done in a buffer named \"*Org ASCII Export*\", which
2055 will be displayed when `org-export-show-temporary-export-buffer'
2056 is non-nil."
2057 (interactive)
2058 (org-export-to-buffer 'ascii "*Org ASCII Export*"
2059 async subtreep visible-only body-only ext-plist (lambda () (text-mode))))
2061 ;;;###autoload
2062 (defun org-ascii-export-to-ascii
2063 (&optional async subtreep visible-only body-only ext-plist)
2064 "Export current buffer to a text file.
2066 If narrowing is active in the current buffer, only export its
2067 narrowed part.
2069 If a region is active, export that region.
2071 A non-nil optional argument ASYNC means the process should happen
2072 asynchronously. The resulting file should be accessible through
2073 the `org-export-stack' interface.
2075 When optional argument SUBTREEP is non-nil, export the sub-tree
2076 at point, extracting information from the headline properties
2077 first.
2079 When optional argument VISIBLE-ONLY is non-nil, don't export
2080 contents of hidden elements.
2082 When optional argument BODY-ONLY is non-nil, strip title and
2083 table of contents from output.
2085 EXT-PLIST, when provided, is a property list with external
2086 parameters overriding Org default settings, but still inferior to
2087 file-local settings.
2089 Return output file's name."
2090 (interactive)
2091 (let ((file (org-export-output-file-name ".txt" subtreep)))
2092 (org-export-to-file 'ascii file
2093 async subtreep visible-only body-only ext-plist)))
2095 ;;;###autoload
2096 (defun org-ascii-publish-to-ascii (plist filename pub-dir)
2097 "Publish an Org file to ASCII.
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 ascii ,@plist) pub-dir))
2107 ;;;###autoload
2108 (defun org-ascii-publish-to-latin1 (plist filename pub-dir)
2109 "Publish an Org file to Latin-1.
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 latin1 ,@plist) pub-dir))
2119 ;;;###autoload
2120 (defun org-ascii-publish-to-utf8 (plist filename pub-dir)
2121 "Publish an org file to UTF-8.
2123 FILENAME is the filename of the Org file to be published. PLIST
2124 is the property list for the given project. PUB-DIR is the
2125 publishing directory.
2127 Return output file name."
2128 (org-publish-org-to
2129 'ascii filename ".txt" `(:ascii-charset utf-8 ,@plist) pub-dir))
2132 (provide 'ox-ascii)
2134 ;; Local variables:
2135 ;; generated-autoload-file: "org-loaddefs.el"
2136 ;; coding: utf-8
2137 ;; End:
2139 ;;; ox-ascii.el ends here