org-element: Small refactoring
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1 ;;; org-element.el --- Parser And Applications for Org syntax
3 ;; Copyright (C) 2012 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 ;; Org syntax can be divided into three categories: "Greater
26 ;; elements", "Elements" and "Objects".
28 ;; Elements are related to the structure of the document. Indeed, all
29 ;; elements are a cover for the document: each position within belongs
30 ;; to at least one element.
32 ;; An element always starts and ends at the beginning of a line. With
33 ;; a few exceptions (`clock', `headline', `inlinetask', `item',
34 ;; `planning', `node-property', `quote-section' `section' and
35 ;; `table-row' types), it can also accept a fixed set of keywords as
36 ;; attributes. Those are called "affiliated keywords" to distinguish
37 ;; them from other keywords, which are full-fledged elements. Almost
38 ;; all affiliated keywords are referenced in
39 ;; `org-element-affiliated-keywords'; the others are export attributes
40 ;; and start with "ATTR_" prefix.
42 ;; Element containing other elements (and only elements) are called
43 ;; greater elements. Concerned types are: `center-block', `drawer',
44 ;; `dynamic-block', `footnote-definition', `headline', `inlinetask',
45 ;; `item', `plain-list', `property-drawer', `quote-block', `section'
46 ;; and `special-block'.
48 ;; Other element types are: `babel-call', `clock', `comment',
49 ;; `comment-block', `example-block', `export-block', `fixed-width',
50 ;; `horizontal-rule', `keyword', `latex-environment', `node-property',
51 ;; `paragraph', `planning', `quote-section', `src-block', `table',
52 ;; `table-row' and `verse-block'. Among them, `paragraph' and
53 ;; `verse-block' types can contain Org objects and plain text.
55 ;; Objects are related to document's contents. Some of them are
56 ;; recursive. Associated types are of the following: `bold', `code',
57 ;; `entity', `export-snippet', `footnote-reference',
58 ;; `inline-babel-call', `inline-src-block', `italic',
59 ;; `latex-fragment', `line-break', `link', `macro', `radio-target',
60 ;; `statistics-cookie', `strike-through', `subscript', `superscript',
61 ;; `table-cell', `target', `timestamp', `underline' and `verbatim'.
63 ;; Some elements also have special properties whose value can hold
64 ;; objects themselves (i.e. an item tag or an headline name). Such
65 ;; values are called "secondary strings". Any object belongs to
66 ;; either an element or a secondary string.
68 ;; Notwithstanding affiliated keywords, each greater element, element
69 ;; and object has a fixed set of properties attached to it. Among
70 ;; them, four are shared by all types: `:begin' and `:end', which
71 ;; refer to the beginning and ending buffer positions of the
72 ;; considered element or object, `:post-blank', which holds the number
73 ;; of blank lines, or white spaces, at its end and `:parent' which
74 ;; refers to the element or object containing it. Greater elements
75 ;; and elements containing objects will also have `:contents-begin'
76 ;; and `:contents-end' properties to delimit contents.
78 ;; At the lowest level, a `:parent' property is also attached to any
79 ;; string, as a text property.
81 ;; Lisp-wise, an element or an object can be represented as a list.
82 ;; It follows the pattern (TYPE PROPERTIES CONTENTS), where:
83 ;; TYPE is a symbol describing the Org element or object.
84 ;; PROPERTIES is the property list attached to it. See docstring of
85 ;; appropriate parsing function to get an exhaustive
86 ;; list.
87 ;; CONTENTS is a list of elements, objects or raw strings contained
88 ;; in the current element or object, when applicable.
90 ;; An Org buffer is a nested list of such elements and objects, whose
91 ;; type is `org-data' and properties is nil.
93 ;; The first part of this file defines Org syntax, while the second
94 ;; one provide accessors and setters functions.
96 ;; The next part implements a parser and an interpreter for each
97 ;; element and object type in Org syntax.
99 ;; The following part creates a fully recursive buffer parser. It
100 ;; also provides a tool to map a function to elements or objects
101 ;; matching some criteria in the parse tree. Functions of interest
102 ;; are `org-element-parse-buffer', `org-element-map' and, to a lesser
103 ;; extent, `org-element-parse-secondary-string'.
105 ;; The penultimate part is the cradle of an interpreter for the
106 ;; obtained parse tree: `org-element-interpret-data'.
108 ;; The library ends by furnishing `org-element-at-point' function, and
109 ;; a way to give information about document structure around point
110 ;; with `org-element-context'.
113 ;;; Code:
115 (eval-when-compile (require 'cl))
116 (require 'org)
120 ;;; Definitions And Rules
122 ;; Define elements, greater elements and specify recursive objects,
123 ;; along with the affiliated keywords recognized. Also set up
124 ;; restrictions on recursive objects combinations.
126 ;; These variables really act as a control center for the parsing
127 ;; process.
129 (defconst org-element-paragraph-separate
130 (concat "^\\(?:"
131 ;; Headlines, inlinetasks.
132 org-outline-regexp "\\|"
133 ;; Footnote definitions.
134 "\\[\\(?:[0-9]+\\|fn:[-_[:word:]]+\\)\\]" "\\|"
135 "[ \t]*\\(?:"
136 ;; Empty lines.
137 "$" "\\|"
138 ;; Tables (any type).
139 "\\(?:|\\|\\+-[-+]\\)" "\\|"
140 ;; Blocks (any type), Babel calls, drawers (any type),
141 ;; fixed-width areas and keywords. Note: this is only an
142 ;; indication and need some thorough check.
143 "[#:]" "\\|"
144 ;; Horizontal rules.
145 "-\\{5,\\}[ \t]*$" "\\|"
146 ;; LaTeX environments.
147 "\\\\begin{\\([A-Za-z0-9]+\\*?\\)}" "\\|"
148 ;; Planning and Clock lines.
149 (regexp-opt (list org-scheduled-string
150 org-deadline-string
151 org-closed-string
152 org-clock-string))
153 "\\|"
154 ;; Lists.
155 (let ((term (case org-plain-list-ordered-item-terminator
156 (?\) ")") (?. "\\.") (otherwise "[.)]")))
157 (alpha (and org-alphabetical-lists "\\|[A-Za-z]")))
158 (concat "\\(?:[-+*]\\|\\(?:[0-9]+" alpha "\\)" term "\\)"
159 "\\(?:[ \t]\\|$\\)"))
160 "\\)\\)")
161 "Regexp to separate paragraphs in an Org buffer.
162 In the case of lines starting with \"#\" and \":\", this regexp
163 is not sufficient to know if point is at a paragraph ending. See
164 `org-element-paragraph-parser' for more information.")
166 (defconst org-element-all-elements
167 '(babel-call center-block clock comment comment-block drawer dynamic-block
168 example-block export-block fixed-width footnote-definition
169 headline horizontal-rule inlinetask item keyword
170 latex-environment node-property paragraph plain-list planning
171 property-drawer quote-block quote-section section special-block
172 src-block table table-row verse-block)
173 "Complete list of element types.")
175 (defconst org-element-greater-elements
176 '(center-block drawer dynamic-block footnote-definition headline inlinetask
177 item plain-list property-drawer quote-block section
178 special-block table)
179 "List of recursive element types aka Greater Elements.")
181 (defconst org-element-all-successors
182 '(export-snippet footnote-reference inline-babel-call inline-src-block
183 latex-or-entity line-break link macro radio-target
184 statistics-cookie sub/superscript table-cell target
185 text-markup timestamp)
186 "Complete list of successors.")
188 (defconst org-element-object-successor-alist
189 '((subscript . sub/superscript) (superscript . sub/superscript)
190 (bold . text-markup) (code . text-markup) (italic . text-markup)
191 (strike-through . text-markup) (underline . text-markup)
192 (verbatim . text-markup) (entity . latex-or-entity)
193 (latex-fragment . latex-or-entity))
194 "Alist of translations between object type and successor name.
196 Sharing the same successor comes handy when, for example, the
197 regexp matching one object can also match the other object.")
199 (defconst org-element-all-objects
200 '(bold code entity export-snippet footnote-reference inline-babel-call
201 inline-src-block italic line-break latex-fragment link macro
202 radio-target statistics-cookie strike-through subscript superscript
203 table-cell target timestamp underline verbatim)
204 "Complete list of object types.")
206 (defconst org-element-recursive-objects
207 '(bold italic link subscript radio-target strike-through superscript
208 table-cell underline)
209 "List of recursive object types.")
211 (defconst org-element-block-name-alist
212 '(("CENTER" . org-element-center-block-parser)
213 ("COMMENT" . org-element-comment-block-parser)
214 ("EXAMPLE" . org-element-example-block-parser)
215 ("QUOTE" . org-element-quote-block-parser)
216 ("SRC" . org-element-src-block-parser)
217 ("VERSE" . org-element-verse-block-parser))
218 "Alist between block names and the associated parsing function.
219 Names must be uppercase. Any block whose name has no association
220 is parsed with `org-element-special-block-parser'.")
222 (defconst org-element-link-type-is-file
223 '("file" "file+emacs" "file+sys" "docview")
224 "List of link types equivalent to \"file\".
225 Only these types can accept search options and an explicit
226 application to open them.")
228 (defconst org-element-affiliated-keywords
229 '("CAPTION" "DATA" "HEADER" "HEADERS" "LABEL" "NAME" "PLOT" "RESNAME" "RESULT"
230 "RESULTS" "SOURCE" "SRCNAME" "TBLNAME")
231 "List of affiliated keywords as strings.
232 By default, all keywords setting attributes (i.e. \"ATTR_LATEX\")
233 are affiliated keywords and need not to be in this list.")
235 (defconst org-element--affiliated-re
236 (format "[ \t]*#\\+%s:"
237 ;; Regular affiliated keywords.
238 (format "\\(%s\\|ATTR_[-_A-Za-z0-9]+\\)\\(?:\\[\\(.*\\)\\]\\)?"
239 (regexp-opt org-element-affiliated-keywords)))
240 "Regexp matching any affiliated keyword.
242 Keyword name is put in match group 1. Moreover, if keyword
243 belongs to `org-element-dual-keywords', put the dual value in
244 match group 2.
246 Don't modify it, set `org-element-affiliated-keywords' instead.")
248 (defconst org-element-keyword-translation-alist
249 '(("DATA" . "NAME") ("LABEL" . "NAME") ("RESNAME" . "NAME")
250 ("SOURCE" . "NAME") ("SRCNAME" . "NAME") ("TBLNAME" . "NAME")
251 ("RESULT" . "RESULTS") ("HEADERS" . "HEADER"))
252 "Alist of usual translations for keywords.
253 The key is the old name and the value the new one. The property
254 holding their value will be named after the translated name.")
256 (defconst org-element-multiple-keywords '("CAPTION" "HEADER")
257 "List of affiliated keywords that can occur more than once in an element.
259 Their value will be consed into a list of strings, which will be
260 returned as the value of the property.
262 This list is checked after translations have been applied. See
263 `org-element-keyword-translation-alist'.
265 By default, all keywords setting attributes (i.e. \"ATTR_LATEX\")
266 allow multiple occurrences and need not to be in this list.")
268 (defconst org-element-parsed-keywords '("CAPTION")
269 "List of affiliated keywords whose value can be parsed.
271 Their value will be stored as a secondary string: a list of
272 strings and objects.
274 This list is checked after translations have been applied. See
275 `org-element-keyword-translation-alist'.")
277 (defconst org-element-dual-keywords '("CAPTION" "RESULTS")
278 "List of affiliated keywords which can have a secondary value.
280 In Org syntax, they can be written with optional square brackets
281 before the colons. For example, RESULTS keyword can be
282 associated to a hash value with the following:
284 #+RESULTS[hash-string]: some-source
286 This list is checked after translations have been applied. See
287 `org-element-keyword-translation-alist'.")
289 (defconst org-element-document-properties '("AUTHOR" "DATE" "TITLE")
290 "List of properties associated to the whole document.
291 Any keyword in this list will have its value parsed and stored as
292 a secondary string.")
294 (defconst org-element-object-restrictions
295 '((bold export-snippet inline-babel-call inline-src-block latex-or-entity link
296 radio-target sub/superscript target text-markup timestamp)
297 (footnote-reference export-snippet footnote-reference inline-babel-call
298 inline-src-block latex-or-entity line-break link macro
299 radio-target sub/superscript target text-markup
300 timestamp)
301 (headline inline-babel-call inline-src-block latex-or-entity link macro
302 radio-target statistics-cookie sub/superscript target text-markup
303 timestamp)
304 (inlinetask inline-babel-call inline-src-block latex-or-entity link macro
305 radio-target sub/superscript target text-markup timestamp)
306 (italic export-snippet inline-babel-call inline-src-block latex-or-entity
307 link radio-target sub/superscript target text-markup timestamp)
308 (item export-snippet footnote-reference inline-babel-call latex-or-entity
309 link macro radio-target sub/superscript target text-markup)
310 (keyword inline-babel-call inline-src-block latex-or-entity link macro
311 sub/superscript text-markup)
312 (link export-snippet inline-babel-call inline-src-block latex-or-entity link
313 sub/superscript text-markup)
314 (paragraph export-snippet footnote-reference inline-babel-call
315 inline-src-block latex-or-entity line-break link macro
316 radio-target statistics-cookie sub/superscript target text-markup
317 timestamp)
318 (radio-target export-snippet latex-or-entity sub/superscript)
319 (strike-through export-snippet inline-babel-call inline-src-block
320 latex-or-entity link radio-target sub/superscript target
321 text-markup timestamp)
322 (subscript export-snippet inline-babel-call inline-src-block latex-or-entity
323 sub/superscript target text-markup)
324 (superscript export-snippet inline-babel-call inline-src-block
325 latex-or-entity sub/superscript target text-markup)
326 (table-cell export-snippet latex-or-entity link macro radio-target
327 sub/superscript target text-markup timestamp)
328 (table-row table-cell)
329 (underline export-snippet inline-babel-call inline-src-block latex-or-entity
330 link radio-target sub/superscript target text-markup timestamp)
331 (verse-block footnote-reference inline-babel-call inline-src-block
332 latex-or-entity line-break link macro radio-target
333 sub/superscript target text-markup timestamp))
334 "Alist of objects restrictions.
336 CAR is an element or object type containing objects and CDR is
337 a list of successors that will be called within an element or
338 object of such type.
340 For example, in a `radio-target' object, one can only find
341 entities, export snippets, latex-fragments, subscript and
342 superscript.
344 This alist also applies to secondary string. For example, an
345 `headline' type element doesn't directly contain objects, but
346 still has an entry since one of its properties (`:title') does.")
348 (defconst org-element-secondary-value-alist
349 '((headline . :title)
350 (inlinetask . :title)
351 (item . :tag)
352 (footnote-reference . :inline-definition))
353 "Alist between element types and location of secondary value.")
357 ;;; Accessors and Setters
359 ;; Provide four accessors: `org-element-type', `org-element-property'
360 ;; `org-element-contents' and `org-element-restriction'.
362 ;; Setter functions allow to modify elements by side effect. There is
363 ;; `org-element-put-property', `org-element-set-contents',
364 ;; `org-element-set-element' and `org-element-adopt-element'. Note
365 ;; that `org-element-set-element' and `org-element-adopt-elements' are
366 ;; higher level functions since also update `:parent' property.
368 (defsubst org-element-type (element)
369 "Return type of ELEMENT.
371 The function returns the type of the element or object provided.
372 It can also return the following special value:
373 `plain-text' for a string
374 `org-data' for a complete document
375 nil in any other case."
376 (cond
377 ((not (consp element)) (and (stringp element) 'plain-text))
378 ((symbolp (car element)) (car element))))
380 (defsubst org-element-property (property element)
381 "Extract the value from the PROPERTY of an ELEMENT."
382 (if (stringp element) (get-text-property 0 property element)
383 (plist-get (nth 1 element) property)))
385 (defsubst org-element-contents (element)
386 "Extract contents from an ELEMENT."
387 (and (consp element) (nthcdr 2 element)))
389 (defsubst org-element-restriction (element)
390 "Return restriction associated to ELEMENT.
391 ELEMENT can be an element, an object or a symbol representing an
392 element or object type."
393 (cdr (assq (if (symbolp element) element (org-element-type element))
394 org-element-object-restrictions)))
396 (defsubst org-element-put-property (element property value)
397 "In ELEMENT set PROPERTY to VALUE.
398 Return modified element."
399 (if (stringp element) (org-add-props element nil property value)
400 (setcar (cdr element) (plist-put (nth 1 element) property value))
401 element))
403 (defsubst org-element-set-contents (element &rest contents)
404 "Set ELEMENT contents to CONTENTS.
405 Return modified element."
406 (cond ((not element) (list contents))
407 ((cdr element) (setcdr (cdr element) contents))
408 (t (nconc element contents))))
410 (defsubst org-element-set-element (old new)
411 "Replace element or object OLD with element or object NEW.
412 The function takes care of setting `:parent' property for NEW."
413 ;; Since OLD is going to be changed into NEW by side-effect, first
414 ;; make sure that every element or object within NEW has OLD as
415 ;; parent.
416 (mapc (lambda (blob) (org-element-put-property blob :parent old))
417 (org-element-contents new))
418 ;; Transfer contents.
419 (apply 'org-element-set-contents old (org-element-contents new))
420 ;; Ensure NEW has same parent as OLD, then overwrite OLD properties
421 ;; with NEW's.
422 (org-element-put-property new :parent (org-element-property :parent old))
423 (setcar (cdr old) (nth 1 new))
424 ;; Transfer type.
425 (setcar old (car new)))
427 (defsubst org-element-adopt-elements (parent &rest children)
428 "Append elements to the contents of another element.
430 PARENT is an element or object. CHILDREN can be elements,
431 objects, or a strings.
433 The function takes care of setting `:parent' property for CHILD.
434 Return parent element."
435 (if (not parent) children
436 ;; Link every child to PARENT.
437 (mapc (lambda (child) (org-element-put-property child :parent parent))
438 children)
439 ;; Add CHILDREN at the end of PARENT contents.
440 (apply 'org-element-set-contents
441 parent
442 (nconc (org-element-contents parent) children))
443 ;; Return modified PARENT element.
444 parent))
448 ;;; Greater elements
450 ;; For each greater element type, we define a parser and an
451 ;; interpreter.
453 ;; A parser returns the element or object as the list described above.
454 ;; Most of them accepts no argument. Though, exceptions exist. Hence
455 ;; every element containing a secondary string (see
456 ;; `org-element-secondary-value-alist') will accept an optional
457 ;; argument to toggle parsing of that secondary string. Moreover,
458 ;; `item' parser requires current list's structure as its first
459 ;; element.
461 ;; An interpreter accepts two arguments: the list representation of
462 ;; the element or object, and its contents. The latter may be nil,
463 ;; depending on the element or object considered. It returns the
464 ;; appropriate Org syntax, as a string.
466 ;; Parsing functions must follow the naming convention:
467 ;; org-element-TYPE-parser, where TYPE is greater element's type, as
468 ;; defined in `org-element-greater-elements'.
470 ;; Similarly, interpreting functions must follow the naming
471 ;; convention: org-element-TYPE-interpreter.
473 ;; With the exception of `headline' and `item' types, greater elements
474 ;; cannot contain other greater elements of their own type.
476 ;; Beside implementing a parser and an interpreter, adding a new
477 ;; greater element requires to tweak `org-element--current-element'.
478 ;; Moreover, the newly defined type must be added to both
479 ;; `org-element-all-elements' and `org-element-greater-elements'.
482 ;;;; Center Block
484 (defun org-element-center-block-parser (limit affiliated)
485 "Parse a center block.
487 LIMIT bounds the search. AFFILIATED is a list of which CAR is
488 the buffer position at the beginning of the first affiliated
489 keyword and CDR is a plist of affiliated keywords along with
490 their value.
492 Return a list whose CAR is `center-block' and CDR is a plist
493 containing `:begin', `:end', `:hiddenp', `:contents-begin',
494 `:contents-end' and `:post-blank' keywords.
496 Assume point is at the beginning of the block."
497 (let ((case-fold-search t))
498 (if (not (save-excursion
499 (re-search-forward "^[ \t]*#\\+END_CENTER[ \t]*$" limit t)))
500 ;; Incomplete block: parse it as a paragraph.
501 (org-element-paragraph-parser limit affiliated)
502 (let ((block-end-line (match-beginning 0)))
503 (let* ((begin (car affiliated))
504 ;; Empty blocks have no contents.
505 (contents-begin (progn (forward-line)
506 (and (< (point) block-end-line)
507 (point))))
508 (contents-end (and contents-begin block-end-line))
509 (hidden (org-invisible-p2))
510 (pos-before-blank (progn (goto-char block-end-line)
511 (forward-line)
512 (point)))
513 (end (save-excursion (skip-chars-forward " \r\t\n" limit)
514 (skip-chars-backward " \t")
515 (if (bolp) (point) (line-end-position)))))
516 (list 'center-block
517 (nconc
518 (list :begin begin
519 :end end
520 :hiddenp hidden
521 :contents-begin contents-begin
522 :contents-end contents-end
523 :post-blank (count-lines pos-before-blank end))
524 (cdr affiliated))))))))
526 (defun org-element-center-block-interpreter (center-block contents)
527 "Interpret CENTER-BLOCK element as Org syntax.
528 CONTENTS is the contents of the element."
529 (format "#+BEGIN_CENTER\n%s#+END_CENTER" contents))
532 ;;;; Drawer
534 (defun org-element-drawer-parser (limit affiliated)
535 "Parse a drawer.
537 LIMIT bounds the search. AFFILIATED is a list of which CAR is
538 the buffer position at the beginning of the first affiliated
539 keyword and CDR is a plist of affiliated keywords along with
540 their value.
542 Return a list whose CAR is `drawer' and CDR is a plist containing
543 `:drawer-name', `:begin', `:end', `:hiddenp', `:contents-begin',
544 `:contents-end' and `:post-blank' keywords.
546 Assume point is at beginning of drawer."
547 (let ((case-fold-search t))
548 (if (not (save-excursion (re-search-forward "^[ \t]*:END:[ \t]*$" limit t)))
549 ;; Incomplete drawer: parse it as a paragraph.
550 (org-element-paragraph-parser limit affiliated)
551 (save-excursion
552 (let* ((drawer-end-line (match-beginning 0))
553 (name (progn (looking-at org-drawer-regexp)
554 (org-match-string-no-properties 1)))
555 (begin (car affiliated))
556 ;; Empty drawers have no contents.
557 (contents-begin (progn (forward-line)
558 (and (< (point) drawer-end-line)
559 (point))))
560 (contents-end (and contents-begin drawer-end-line))
561 (hidden (org-invisible-p2))
562 (pos-before-blank (progn (goto-char drawer-end-line)
563 (forward-line)
564 (point)))
565 (end (progn (skip-chars-forward " \r\t\n" limit)
566 (skip-chars-backward " \t")
567 (if (bolp) (point) (line-end-position)))))
568 (list 'drawer
569 (nconc
570 (list :begin begin
571 :end end
572 :drawer-name name
573 :hiddenp hidden
574 :contents-begin contents-begin
575 :contents-end contents-end
576 :post-blank (count-lines pos-before-blank end))
577 (cdr affiliated))))))))
579 (defun org-element-drawer-interpreter (drawer contents)
580 "Interpret DRAWER element as Org syntax.
581 CONTENTS is the contents of the element."
582 (format ":%s:\n%s:END:"
583 (org-element-property :drawer-name drawer)
584 contents))
587 ;;;; Dynamic Block
589 (defun org-element-dynamic-block-parser (limit affiliated)
590 "Parse a dynamic block.
592 LIMIT bounds the search. AFFILIATED is a list of which CAR is
593 the buffer position at the beginning of the first affiliated
594 keyword and CDR is a plist of affiliated keywords along with
595 their value.
597 Return a list whose CAR is `dynamic-block' and CDR is a plist
598 containing `:block-name', `:begin', `:end', `:hiddenp',
599 `:contents-begin', `:contents-end', `:arguments' and
600 `:post-blank' keywords.
602 Assume point is at beginning of dynamic block."
603 (let ((case-fold-search t))
604 (if (not (save-excursion
605 (re-search-forward "^[ \t]*#\\+END:?[ \t]*$" limit t)))
606 ;; Incomplete block: parse it as a paragraph.
607 (org-element-paragraph-parser limit affiliated)
608 (let ((block-end-line (match-beginning 0)))
609 (save-excursion
610 (let* ((name (progn (looking-at org-dblock-start-re)
611 (org-match-string-no-properties 1)))
612 (arguments (org-match-string-no-properties 3))
613 (begin (car affiliated))
614 ;; Empty blocks have no contents.
615 (contents-begin (progn (forward-line)
616 (and (< (point) block-end-line)
617 (point))))
618 (contents-end (and contents-begin block-end-line))
619 (hidden (org-invisible-p2))
620 (pos-before-blank (progn (goto-char block-end-line)
621 (forward-line)
622 (point)))
623 (end (progn (skip-chars-forward " \r\t\n" limit)
624 (skip-chars-backward " \t")
625 (if (bolp) (point) (line-end-position)))))
626 (list 'dynamic-block
627 (nconc
628 (list :begin begin
629 :end end
630 :block-name name
631 :arguments arguments
632 :hiddenp hidden
633 :contents-begin contents-begin
634 :contents-end contents-end
635 :post-blank (count-lines pos-before-blank end))
636 (cdr affiliated)))))))))
638 (defun org-element-dynamic-block-interpreter (dynamic-block contents)
639 "Interpret DYNAMIC-BLOCK element as Org syntax.
640 CONTENTS is the contents of the element."
641 (format "#+BEGIN: %s%s\n%s#+END:"
642 (org-element-property :block-name dynamic-block)
643 (let ((args (org-element-property :arguments dynamic-block)))
644 (and args (concat " " args)))
645 contents))
648 ;;;; Footnote Definition
650 (defun org-element-footnote-definition-parser (limit affiliated)
651 "Parse a footnote definition.
653 LIMIT bounds the search. AFFILIATED is a list of which CAR is
654 the buffer position at the beginning of the first affiliated
655 keyword and CDR is a plist of affiliated keywords along with
656 their value.
658 Return a list whose CAR is `footnote-definition' and CDR is
659 a plist containing `:label', `:begin' `:end', `:contents-begin',
660 `:contents-end' and `:post-blank' keywords.
662 Assume point is at the beginning of the footnote definition."
663 (save-excursion
664 (let* ((label (progn (looking-at org-footnote-definition-re)
665 (org-match-string-no-properties 1)))
666 (begin (car affiliated))
667 (ending (save-excursion
668 (if (progn
669 (end-of-line)
670 (re-search-forward
671 (concat org-outline-regexp-bol "\\|"
672 org-footnote-definition-re "\\|"
673 "^[ \t]*$") limit 'move))
674 (match-beginning 0)
675 (point))))
676 (contents-begin (progn (search-forward "]")
677 (skip-chars-forward " \r\t\n" ending)
678 (and (/= (point) ending) (point))))
679 (contents-end (and contents-begin ending))
680 (end (progn (goto-char ending)
681 (skip-chars-forward " \r\t\n" limit)
682 (skip-chars-backward " \t")
683 (if (bolp) (point) (line-end-position)))))
684 (list 'footnote-definition
685 (nconc
686 (list :label label
687 :begin begin
688 :end end
689 :contents-begin contents-begin
690 :contents-end contents-end
691 :post-blank (count-lines ending end))
692 (cdr affiliated))))))
694 (defun org-element-footnote-definition-interpreter (footnote-definition contents)
695 "Interpret FOOTNOTE-DEFINITION element as Org syntax.
696 CONTENTS is the contents of the footnote-definition."
697 (concat (format "[%s]" (org-element-property :label footnote-definition))
699 contents))
702 ;;;; Headline
704 (defun org-element-headline-parser (limit &optional raw-secondary-p)
705 "Parse an headline.
707 Return a list whose CAR is `headline' and CDR is a plist
708 containing `:raw-value', `:title', `:begin', `:end',
709 `:pre-blank', `:hiddenp', `:contents-begin' and `:contents-end',
710 `:level', `:priority', `:tags', `:todo-keyword',`:todo-type',
711 `:scheduled', `:deadline', `:timestamp', `:clock', `:category',
712 `:quotedp', `:archivedp', `:commentedp' and `:footnote-section-p'
713 keywords.
715 The plist also contains any property set in the property drawer,
716 with its name in lowercase, the underscores replaced with hyphens
717 and colons at the beginning (i.e. `:custom-id').
719 When RAW-SECONDARY-P is non-nil, headline's title will not be
720 parsed as a secondary string, but as a plain string instead.
722 Assume point is at beginning of the headline."
723 (save-excursion
724 (let* ((components (org-heading-components))
725 (level (nth 1 components))
726 (todo (nth 2 components))
727 (todo-type
728 (and todo (if (member todo org-done-keywords) 'done 'todo)))
729 (tags (let ((raw-tags (nth 5 components)))
730 (and raw-tags (org-split-string raw-tags ":"))))
731 (raw-value (or (nth 4 components) ""))
732 (quotedp
733 (let ((case-fold-search nil))
734 (string-match (format "^%s\\( \\|$\\)" org-quote-string)
735 raw-value)))
736 (commentedp
737 (let ((case-fold-search nil))
738 (string-match (format "^%s\\( \\|$\\)" org-comment-string)
739 raw-value)))
740 (archivedp (member org-archive-tag tags))
741 (footnote-section-p (and org-footnote-section
742 (string= org-footnote-section raw-value)))
743 ;; Normalize property names: ":SOME_PROP:" becomes
744 ;; ":some-prop".
745 (standard-props (let (plist)
746 (mapc
747 (lambda (p)
748 (let ((p-name (downcase (car p))))
749 (while (string-match "_" p-name)
750 (setq p-name
751 (replace-match "-" nil nil p-name)))
752 (setq p-name (intern (concat ":" p-name)))
753 (setq plist
754 (plist-put plist p-name (cdr p)))))
755 (org-entry-properties nil 'standard))
756 plist))
757 (time-props (org-entry-properties nil 'special "CLOCK"))
758 (scheduled (cdr (assoc "SCHEDULED" time-props)))
759 (deadline (cdr (assoc "DEADLINE" time-props)))
760 (clock (cdr (assoc "CLOCK" time-props)))
761 (timestamp (cdr (assoc "TIMESTAMP" time-props)))
762 (begin (point))
763 (end (save-excursion (goto-char (org-end-of-subtree t t))))
764 (pos-after-head (progn (forward-line) (point)))
765 (contents-begin (save-excursion
766 (skip-chars-forward " \r\t\n" end)
767 (and (/= (point) end) (line-beginning-position))))
768 (hidden (org-invisible-p2))
769 (contents-end (and contents-begin
770 (progn (goto-char end)
771 (skip-chars-backward " \r\t\n")
772 (forward-line)
773 (point)))))
774 ;; Clean RAW-VALUE from any quote or comment string.
775 (when (or quotedp commentedp)
776 (let ((case-fold-search nil))
777 (setq raw-value
778 (replace-regexp-in-string
779 (concat
780 (regexp-opt (list org-quote-string org-comment-string))
781 "\\(?: \\|$\\)")
783 raw-value))))
784 ;; Clean TAGS from archive tag, if any.
785 (when archivedp (setq tags (delete org-archive-tag tags)))
786 (let ((headline
787 (list 'headline
788 (nconc
789 (list :raw-value raw-value
790 :begin begin
791 :end end
792 :pre-blank
793 (if (not contents-begin) 0
794 (count-lines pos-after-head contents-begin))
795 :hiddenp hidden
796 :contents-begin contents-begin
797 :contents-end contents-end
798 :level level
799 :priority (nth 3 components)
800 :tags tags
801 :todo-keyword todo
802 :todo-type todo-type
803 :scheduled scheduled
804 :deadline deadline
805 :timestamp timestamp
806 :clock clock
807 :post-blank (count-lines
808 (if (not contents-end) pos-after-head
809 (goto-char contents-end)
810 (forward-line)
811 (point))
812 end)
813 :footnote-section-p footnote-section-p
814 :archivedp archivedp
815 :commentedp commentedp
816 :quotedp quotedp)
817 standard-props))))
818 (org-element-put-property
819 headline :title
820 (if raw-secondary-p raw-value
821 (org-element-parse-secondary-string
822 raw-value (org-element-restriction 'headline) headline)))))))
824 (defun org-element-headline-interpreter (headline contents)
825 "Interpret HEADLINE element as Org syntax.
826 CONTENTS is the contents of the element."
827 (let* ((level (org-element-property :level headline))
828 (todo (org-element-property :todo-keyword headline))
829 (priority (org-element-property :priority headline))
830 (title (org-element-interpret-data
831 (org-element-property :title headline)))
832 (tags (let ((tag-list (if (org-element-property :archivedp headline)
833 (cons org-archive-tag
834 (org-element-property :tags headline))
835 (org-element-property :tags headline))))
836 (and tag-list
837 (format ":%s:" (mapconcat 'identity tag-list ":")))))
838 (commentedp (org-element-property :commentedp headline))
839 (quotedp (org-element-property :quotedp headline))
840 (pre-blank (or (org-element-property :pre-blank headline) 0))
841 (heading (concat (make-string level ?*)
842 (and todo (concat " " todo))
843 (and quotedp (concat " " org-quote-string))
844 (and commentedp (concat " " org-comment-string))
845 (and priority
846 (format " [#%s]" (char-to-string priority)))
847 (cond ((and org-footnote-section
848 (org-element-property
849 :footnote-section-p headline))
850 (concat " " org-footnote-section))
851 (title (concat " " title))))))
852 (concat heading
853 ;; Align tags.
854 (when tags
855 (cond
856 ((zerop org-tags-column) (format " %s" tags))
857 ((< org-tags-column 0)
858 (concat
859 (make-string
860 (max (- (+ org-tags-column (length heading) (length tags))) 1)
862 tags))
864 (concat
865 (make-string (max (- org-tags-column (length heading)) 1) ? )
866 tags))))
867 (make-string (1+ pre-blank) 10)
868 contents)))
871 ;;;; Inlinetask
873 (defun org-element-inlinetask-parser (limit &optional raw-secondary-p)
874 "Parse an inline task.
876 Return a list whose CAR is `inlinetask' and CDR is a plist
877 containing `:title', `:begin', `:end', `:hiddenp',
878 `:contents-begin' and `:contents-end', `:level', `:priority',
879 `:raw-value', `:tags', `:todo-keyword', `:todo-type',
880 `:scheduled', `:deadline', `:timestamp', `:clock' and
881 `:post-blank' keywords.
883 The plist also contains any property set in the property drawer,
884 with its name in lowercase, the underscores replaced with hyphens
885 and colons at the beginning (i.e. `:custom-id').
887 When optional argument RAW-SECONDARY-P is non-nil, inline-task's
888 title will not be parsed as a secondary string, but as a plain
889 string instead.
891 Assume point is at beginning of the inline task."
892 (save-excursion
893 (let* ((keywords (org-element--collect-affiliated-keywords))
894 (begin (car keywords))
895 (components (org-heading-components))
896 (todo (nth 2 components))
897 (todo-type (and todo
898 (if (member todo org-done-keywords) 'done 'todo)))
899 (tags (let ((raw-tags (nth 5 components)))
900 (and raw-tags (org-split-string raw-tags ":"))))
901 (raw-value (or (nth 4 components) ""))
902 ;; Normalize property names: ":SOME_PROP:" becomes
903 ;; ":some-prop".
904 (standard-props (let (plist)
905 (mapc
906 (lambda (p)
907 (let ((p-name (downcase (car p))))
908 (while (string-match "_" p-name)
909 (setq p-name
910 (replace-match "-" nil nil p-name)))
911 (setq p-name (intern (concat ":" p-name)))
912 (setq plist
913 (plist-put plist p-name (cdr p)))))
914 (org-entry-properties nil 'standard))
915 plist))
916 (time-props (org-entry-properties nil 'special "CLOCK"))
917 (scheduled (cdr (assoc "SCHEDULED" time-props)))
918 (deadline (cdr (assoc "DEADLINE" time-props)))
919 (clock (cdr (assoc "CLOCK" time-props)))
920 (timestamp (cdr (assoc "TIMESTAMP" time-props)))
921 (task-end (save-excursion
922 (end-of-line)
923 (and (re-search-forward "^\\*+ END" limit t)
924 (match-beginning 0))))
925 (contents-begin (progn (forward-line)
926 (and task-end (< (point) task-end) (point))))
927 (hidden (and contents-begin (org-invisible-p2)))
928 (contents-end (and contents-begin task-end))
929 (before-blank (if (not task-end) (point)
930 (goto-char task-end)
931 (forward-line)
932 (point)))
933 (end (progn (skip-chars-forward " \r\t\n" limit)
934 (skip-chars-backward " \t")
935 (if (bolp) (point) (line-end-position))))
936 (inlinetask
937 (list 'inlinetask
938 (nconc
939 (list :raw-value raw-value
940 :begin begin
941 :end end
942 :hiddenp hidden
943 :contents-begin contents-begin
944 :contents-end contents-end
945 :level (nth 1 components)
946 :priority (nth 3 components)
947 :tags tags
948 :todo-keyword todo
949 :todo-type todo-type
950 :scheduled scheduled
951 :deadline deadline
952 :timestamp timestamp
953 :clock clock
954 :post-blank (count-lines before-blank end))
955 standard-props
956 (cadr keywords)))))
957 (org-element-put-property
958 inlinetask :title
959 (if raw-secondary-p raw-value
960 (org-element-parse-secondary-string
961 raw-value
962 (org-element-restriction 'inlinetask)
963 inlinetask))))))
965 (defun org-element-inlinetask-interpreter (inlinetask contents)
966 "Interpret INLINETASK element as Org syntax.
967 CONTENTS is the contents of inlinetask."
968 (let* ((level (org-element-property :level inlinetask))
969 (todo (org-element-property :todo-keyword inlinetask))
970 (priority (org-element-property :priority inlinetask))
971 (title (org-element-interpret-data
972 (org-element-property :title inlinetask)))
973 (tags (let ((tag-list (org-element-property :tags inlinetask)))
974 (and tag-list
975 (format ":%s:" (mapconcat 'identity tag-list ":")))))
976 (task (concat (make-string level ?*)
977 (and todo (concat " " todo))
978 (and priority
979 (format " [#%s]" (char-to-string priority)))
980 (and title (concat " " title)))))
981 (concat task
982 ;; Align tags.
983 (when tags
984 (cond
985 ((zerop org-tags-column) (format " %s" tags))
986 ((< org-tags-column 0)
987 (concat
988 (make-string
989 (max (- (+ org-tags-column (length task) (length tags))) 1)
991 tags))
993 (concat
994 (make-string (max (- org-tags-column (length task)) 1) ? )
995 tags))))
996 ;; Prefer degenerate inlinetasks when there are no
997 ;; contents.
998 (when contents
999 (concat "\n"
1000 contents
1001 (make-string level ?*) " END")))))
1004 ;;;; Item
1006 (defun org-element-item-parser (limit struct &optional raw-secondary-p)
1007 "Parse an item.
1009 STRUCT is the structure of the plain list.
1011 Return a list whose CAR is `item' and CDR is a plist containing
1012 `:bullet', `:begin', `:end', `:contents-begin', `:contents-end',
1013 `:checkbox', `:counter', `:tag', `:structure', `:hiddenp' and
1014 `:post-blank' keywords.
1016 When optional argument RAW-SECONDARY-P is non-nil, item's tag, if
1017 any, will not be parsed as a secondary string, but as a plain
1018 string instead.
1020 Assume point is at the beginning of the item."
1021 (save-excursion
1022 (beginning-of-line)
1023 (looking-at org-list-full-item-re)
1024 (let* ((begin (point))
1025 (bullet (org-match-string-no-properties 1))
1026 (checkbox (let ((box (org-match-string-no-properties 3)))
1027 (cond ((equal "[ ]" box) 'off)
1028 ((equal "[X]" box) 'on)
1029 ((equal "[-]" box) 'trans))))
1030 (counter (let ((c (org-match-string-no-properties 2)))
1031 (save-match-data
1032 (cond
1033 ((not c) nil)
1034 ((string-match "[A-Za-z]" c)
1035 (- (string-to-char (upcase (match-string 0 c)))
1036 64))
1037 ((string-match "[0-9]+" c)
1038 (string-to-number (match-string 0 c)))))))
1039 (end (save-excursion (goto-char (org-list-get-item-end begin struct))
1040 (unless (bolp) (forward-line))
1041 (point)))
1042 (contents-begin
1043 (progn (goto-char
1044 ;; Ignore tags in un-ordered lists: they are just
1045 ;; a part of item's body.
1046 (if (and (match-beginning 4)
1047 (save-match-data (string-match "[.)]" bullet)))
1048 (match-beginning 4)
1049 (match-end 0)))
1050 (skip-chars-forward " \r\t\n" limit)
1051 ;; If first line isn't empty, contents really start
1052 ;; at the text after item's meta-data.
1053 (if (= (point-at-bol) begin) (point) (point-at-bol))))
1054 (hidden (progn (forward-line)
1055 (and (not (= (point) end)) (org-invisible-p2))))
1056 (contents-end (progn (goto-char end)
1057 (skip-chars-backward " \r\t\n")
1058 (forward-line)
1059 (point)))
1060 (item
1061 (list 'item
1062 (list :bullet bullet
1063 :begin begin
1064 :end end
1065 ;; CONTENTS-BEGIN and CONTENTS-END may be
1066 ;; mixed up in the case of an empty item
1067 ;; separated from the next by a blank line.
1068 ;; Thus ensure the former is always the
1069 ;; smallest.
1070 :contents-begin (min contents-begin contents-end)
1071 :contents-end (max contents-begin contents-end)
1072 :checkbox checkbox
1073 :counter counter
1074 :hiddenp hidden
1075 :structure struct
1076 :post-blank (count-lines contents-end end)))))
1077 (org-element-put-property
1078 item :tag
1079 (let ((raw-tag (org-list-get-tag begin struct)))
1080 (and raw-tag
1081 (if raw-secondary-p raw-tag
1082 (org-element-parse-secondary-string
1083 raw-tag (org-element-restriction 'item) item))))))))
1085 (defun org-element-item-interpreter (item contents)
1086 "Interpret ITEM element as Org syntax.
1087 CONTENTS is the contents of the element."
1088 (let* ((bullet (org-list-bullet-string (org-element-property :bullet item)))
1089 (checkbox (org-element-property :checkbox item))
1090 (counter (org-element-property :counter item))
1091 (tag (let ((tag (org-element-property :tag item)))
1092 (and tag (org-element-interpret-data tag))))
1093 ;; Compute indentation.
1094 (ind (make-string (length bullet) 32))
1095 (item-starts-with-par-p
1096 (eq (org-element-type (car (org-element-contents item)))
1097 'paragraph)))
1098 ;; Indent contents.
1099 (concat
1100 bullet
1101 (and counter (format "[@%d] " counter))
1102 (case checkbox
1103 (on "[X] ")
1104 (off "[ ] ")
1105 (trans "[-] "))
1106 (and tag (format "%s :: " tag))
1107 (let ((contents (replace-regexp-in-string
1108 "\\(^\\)[ \t]*\\S-" ind contents nil nil 1)))
1109 (if item-starts-with-par-p (org-trim contents)
1110 (concat "\n" contents))))))
1113 ;;;; Plain List
1115 (defun org-element-plain-list-parser (limit affiliated structure)
1116 "Parse a plain list.
1118 LIMIT bounds the search. AFFILIATED is a list of which CAR is
1119 the buffer position at the beginning of the first affiliated
1120 keyword and CDR is a plist of affiliated keywords along with
1121 their value. STRUCTURE is the structure of the plain list being
1122 parsed.
1124 Return a list whose CAR is `plain-list' and CDR is a plist
1125 containing `:type', `:begin', `:end', `:contents-begin' and
1126 `:contents-end', `:structure' and `:post-blank' keywords.
1128 Assume point is at the beginning of the list."
1129 (save-excursion
1130 (let* ((struct (or structure (org-list-struct)))
1131 (prevs (org-list-prevs-alist struct))
1132 (parents (org-list-parents-alist struct))
1133 (type (org-list-get-list-type (point) struct prevs))
1134 (contents-begin (point))
1135 (begin (car affiliated))
1136 (contents-end
1137 (progn (goto-char (org-list-get-list-end (point) struct prevs))
1138 (unless (bolp) (forward-line))
1139 (point)))
1140 (end (progn (skip-chars-forward " \r\t\n" limit)
1141 (skip-chars-backward " \t")
1142 (if (bolp) (point) (line-end-position)))))
1143 ;; Return value.
1144 (list 'plain-list
1145 (nconc
1146 (list :type type
1147 :begin begin
1148 :end end
1149 :contents-begin contents-begin
1150 :contents-end contents-end
1151 :structure struct
1152 :post-blank (count-lines contents-end end))
1153 (cdr affiliated))))))
1155 (defun org-element-plain-list-interpreter (plain-list contents)
1156 "Interpret PLAIN-LIST element as Org syntax.
1157 CONTENTS is the contents of the element."
1158 (with-temp-buffer
1159 (insert contents)
1160 (goto-char (point-min))
1161 (org-list-repair)
1162 (buffer-string)))
1165 ;;;; Property Drawer
1167 (defun org-element-property-drawer-parser (limit affiliated)
1168 "Parse a property drawer.
1170 LIMIT bounds the search. AFFILIATED is a list of which CAR is
1171 the buffer position at the beginning of the first affiliated
1172 keyword and CDR is a plist of affiliated keywords along with
1173 their value.
1175 Return a list whose CAR is `property-drawer' and CDR is a plist
1176 containing `:begin', `:end', `:hiddenp', `:contents-begin',
1177 `:contents-end' and `:post-blank' keywords.
1179 Assume point is at the beginning of the property drawer."
1180 (save-excursion
1181 (let ((case-fold-search t))
1182 (if (not (save-excursion
1183 (re-search-forward "^[ \t]*:END:[ \t]*$" limit t)))
1184 ;; Incomplete drawer: parse it as a paragraph.
1185 (org-element-paragraph-parser limit affiliated)
1186 (save-excursion
1187 (let* ((drawer-end-line (match-beginning 0))
1188 (begin (car affiliated))
1189 (contents-begin (progn (forward-line)
1190 (and (< (point) drawer-end-line)
1191 (point))))
1192 (contents-end (and contents-begin drawer-end-line))
1193 (hidden (org-invisible-p2))
1194 (pos-before-blank (progn (goto-char drawer-end-line)
1195 (forward-line)
1196 (point)))
1197 (end (progn (skip-chars-forward " \r\t\n" limit)
1198 (skip-chars-backward " \t")
1199 (if (bolp) (point) (line-end-position)))))
1200 (list 'property-drawer
1201 (nconc
1202 (list :begin begin
1203 :end end
1204 :hiddenp hidden
1205 :contents-begin contents-begin
1206 :contents-end contents-end
1207 :post-blank (count-lines pos-before-blank end))
1208 (cdr affiliated)))))))))
1210 (defun org-element-property-drawer-interpreter (property-drawer contents)
1211 "Interpret PROPERTY-DRAWER element as Org syntax.
1212 CONTENTS is the properties within the drawer."
1213 (format ":PROPERTIES:\n%s:END:" contents))
1216 ;;;; Quote Block
1218 (defun org-element-quote-block-parser (limit affiliated)
1219 "Parse a quote block.
1221 LIMIT bounds the search. AFFILIATED is a list of which CAR is
1222 the buffer position at the beginning of the first affiliated
1223 keyword and CDR is a plist of affiliated keywords along with
1224 their value.
1226 Return a list whose CAR is `quote-block' and CDR is a plist
1227 containing `:begin', `:end', `:hiddenp', `:contents-begin',
1228 `:contents-end' and `:post-blank' keywords.
1230 Assume point is at the beginning of the block."
1231 (let ((case-fold-search t))
1232 (if (not (save-excursion
1233 (re-search-forward "^[ \t]*#\\+END_QUOTE[ \t]*$" limit t)))
1234 ;; Incomplete block: parse it as a paragraph.
1235 (org-element-paragraph-parser limit affiliated)
1236 (let ((block-end-line (match-beginning 0)))
1237 (save-excursion
1238 (let* ((begin (car affiliated))
1239 ;; Empty blocks have no contents.
1240 (contents-begin (progn (forward-line)
1241 (and (< (point) block-end-line)
1242 (point))))
1243 (contents-end (and contents-begin block-end-line))
1244 (hidden (org-invisible-p2))
1245 (pos-before-blank (progn (goto-char block-end-line)
1246 (forward-line)
1247 (point)))
1248 (end (progn (skip-chars-forward " \r\t\n" limit)
1249 (skip-chars-backward " \t")
1250 (if (bolp) (point) (line-end-position)))))
1251 (list 'quote-block
1252 (nconc
1253 (list :begin begin
1254 :end end
1255 :hiddenp hidden
1256 :contents-begin contents-begin
1257 :contents-end contents-end
1258 :post-blank (count-lines pos-before-blank end))
1259 (cdr affiliated)))))))))
1261 (defun org-element-quote-block-interpreter (quote-block contents)
1262 "Interpret QUOTE-BLOCK element as Org syntax.
1263 CONTENTS is the contents of the element."
1264 (format "#+BEGIN_QUOTE\n%s#+END_QUOTE" contents))
1267 ;;;; Section
1269 (defun org-element-section-parser (limit)
1270 "Parse a section.
1272 LIMIT bounds the search.
1274 Return a list whose CAR is `section' and CDR is a plist
1275 containing `:begin', `:end', `:contents-begin', `contents-end'
1276 and `:post-blank' keywords."
1277 (save-excursion
1278 ;; Beginning of section is the beginning of the first non-blank
1279 ;; line after previous headline.
1280 (let ((begin (point))
1281 (end (progn (org-with-limited-levels (outline-next-heading))
1282 (point)))
1283 (pos-before-blank (progn (skip-chars-backward " \r\t\n")
1284 (forward-line)
1285 (point))))
1286 (list 'section
1287 (list :begin begin
1288 :end end
1289 :contents-begin begin
1290 :contents-end pos-before-blank
1291 :post-blank (count-lines pos-before-blank end))))))
1293 (defun org-element-section-interpreter (section contents)
1294 "Interpret SECTION element as Org syntax.
1295 CONTENTS is the contents of the element."
1296 contents)
1299 ;;;; Special Block
1301 (defun org-element-special-block-parser (limit affiliated)
1302 "Parse a special block.
1304 LIMIT bounds the search. AFFILIATED is a list of which CAR is
1305 the buffer position at the beginning of the first affiliated
1306 keyword and CDR is a plist of affiliated keywords along with
1307 their value.
1309 Return a list whose CAR is `special-block' and CDR is a plist
1310 containing `:type', `:begin', `:end', `:hiddenp',
1311 `:contents-begin', `:contents-end' and `:post-blank' keywords.
1313 Assume point is at the beginning of the block."
1314 (let* ((case-fold-search t)
1315 (type (progn (looking-at "[ \t]*#\\+BEGIN_\\(S-+\\)")
1316 (upcase (match-string-no-properties 1)))))
1317 (if (not (save-excursion
1318 (re-search-forward
1319 (format "^[ \t]*#\\+END_%s[ \t]*$" type) limit t)))
1320 ;; Incomplete block: parse it as a paragraph.
1321 (org-element-paragraph-parser limit affiliated)
1322 (let ((block-end-line (match-beginning 0)))
1323 (save-excursion
1324 (let* ((begin (car affiliated))
1325 ;; Empty blocks have no contents.
1326 (contents-begin (progn (forward-line)
1327 (and (< (point) block-end-line)
1328 (point))))
1329 (contents-end (and contents-begin block-end-line))
1330 (hidden (org-invisible-p2))
1331 (pos-before-blank (progn (goto-char block-end-line)
1332 (forward-line)
1333 (point)))
1334 (end (progn (skip-chars-forward " \r\t\n" limit)
1335 (skip-chars-backward " \t")
1336 (if (bolp) (point) (line-end-position)))))
1337 (list 'special-block
1338 (nconc
1339 (list :type type
1340 :begin begin
1341 :end end
1342 :hiddenp hidden
1343 :contents-begin contents-begin
1344 :contents-end contents-end
1345 :post-blank (count-lines pos-before-blank end))
1346 (cdr affiliated)))))))))
1348 (defun org-element-special-block-interpreter (special-block contents)
1349 "Interpret SPECIAL-BLOCK element as Org syntax.
1350 CONTENTS is the contents of the element."
1351 (let ((block-type (org-element-property :type special-block)))
1352 (format "#+BEGIN_%s\n%s#+END_%s" block-type contents block-type)))
1356 ;;; Elements
1358 ;; For each element, a parser and an interpreter are also defined.
1359 ;; Both follow the same naming convention used for greater elements.
1361 ;; Also, as for greater elements, adding a new element type is done
1362 ;; through the following steps: implement a parser and an interpreter,
1363 ;; tweak `org-element--current-element' so that it recognizes the new
1364 ;; type and add that new type to `org-element-all-elements'.
1366 ;; As a special case, when the newly defined type is a block type,
1367 ;; `org-element-block-name-alist' has to be modified accordingly.
1370 ;;;; Babel Call
1372 (defun org-element-babel-call-parser (limit affiliated)
1373 "Parse a babel call.
1375 LIMIT bounds the search. AFFILIATED is a list of which CAR is
1376 the buffer position at the beginning of the first affiliated
1377 keyword and CDR is a plist of affiliated keywords along with
1378 their value.
1380 Return a list whose CAR is `babel-call' and CDR is a plist
1381 containing `:begin', `:end', `:info' and `:post-blank' as
1382 keywords."
1383 (save-excursion
1384 (let ((case-fold-search t)
1385 (info (progn (looking-at org-babel-block-lob-one-liner-regexp)
1386 (org-babel-lob-get-info)))
1387 (begin (car affiliated))
1388 (pos-before-blank (progn (forward-line) (point)))
1389 (end (progn (skip-chars-forward " \r\t\n" limit)
1390 (skip-chars-backward " \t")
1391 (if (bolp) (point) (line-end-position)))))
1392 (list 'babel-call
1393 (nconc
1394 (list :begin begin
1395 :end end
1396 :info info
1397 :post-blank (count-lines pos-before-blank end))
1398 (cdr affiliated))))))
1400 (defun org-element-babel-call-interpreter (babel-call contents)
1401 "Interpret BABEL-CALL element as Org syntax.
1402 CONTENTS is nil."
1403 (let* ((babel-info (org-element-property :info babel-call))
1404 (main (car babel-info))
1405 (post-options (nth 1 babel-info)))
1406 (concat "#+CALL: "
1407 (if (not (string-match "\\[\\(\\[.*?\\]\\)\\]" main)) main
1408 ;; Remove redundant square brackets.
1409 (replace-match (match-string 1 main) nil nil main))
1410 (and post-options (format "[%s]" post-options)))))
1413 ;;;; Clock
1415 (defun org-element-clock-parser (limit)
1416 "Parse a clock.
1418 LIMIT bounds the search.
1420 Return a list whose CAR is `clock' and CDR is a plist containing
1421 `:status', `:value', `:time', `:begin', `:end' and `:post-blank'
1422 as keywords."
1423 (save-excursion
1424 (let* ((case-fold-search nil)
1425 (begin (point))
1426 (value (progn (search-forward org-clock-string (line-end-position) t)
1427 (org-skip-whitespace)
1428 (looking-at "\\[.*\\]")
1429 (org-match-string-no-properties 0)))
1430 (time (and (progn (goto-char (match-end 0))
1431 (looking-at " +=> +\\(\\S-+\\)[ \t]*$"))
1432 (org-match-string-no-properties 1)))
1433 (status (if time 'closed 'running))
1434 (post-blank (let ((before-blank (progn (forward-line) (point))))
1435 (skip-chars-forward " \r\t\n" limit)
1436 (skip-chars-backward " \t")
1437 (unless (bolp) (end-of-line))
1438 (count-lines before-blank (point))))
1439 (end (point)))
1440 (list 'clock
1441 (list :status status
1442 :value value
1443 :time time
1444 :begin begin
1445 :end end
1446 :post-blank post-blank)))))
1448 (defun org-element-clock-interpreter (clock contents)
1449 "Interpret CLOCK element as Org syntax.
1450 CONTENTS is nil."
1451 (concat org-clock-string " "
1452 (org-element-property :value clock)
1453 (let ((time (org-element-property :time clock)))
1454 (and time
1455 (concat " => "
1456 (apply 'format
1457 "%2s:%02s"
1458 (org-split-string time ":")))))))
1461 ;;;; Comment
1463 (defun org-element-comment-parser (limit affiliated)
1464 "Parse a comment.
1466 LIMIT bounds the search. AFFILIATED is a list of which CAR is
1467 the buffer position at the beginning of the first affiliated
1468 keyword and CDR is a plist of affiliated keywords along with
1469 their value.
1471 Return a list whose CAR is `comment' and CDR is a plist
1472 containing `:begin', `:end', `:value' and `:post-blank'
1473 keywords.
1475 Assume point is at comment beginning."
1476 (save-excursion
1477 (let* ((begin (car affiliated))
1478 (value (prog2 (looking-at "[ \t]*# ?")
1479 (buffer-substring-no-properties
1480 (match-end 0) (line-end-position))
1481 (forward-line)))
1482 (com-end
1483 ;; Get comments ending.
1484 (progn
1485 (while (and (< (point) limit) (looking-at "[ \t]*#\\( \\|$\\)"))
1486 ;; Accumulate lines without leading hash and first
1487 ;; whitespace.
1488 (setq value
1489 (concat value
1490 "\n"
1491 (buffer-substring-no-properties
1492 (match-end 0) (line-end-position))))
1493 (forward-line))
1494 (point)))
1495 (end (progn (goto-char com-end)
1496 (skip-chars-forward " \r\t\n" limit)
1497 (skip-chars-backward " \t")
1498 (if (bolp) (point) (line-end-position)))))
1499 (list 'comment
1500 (nconc
1501 (list :begin begin
1502 :end end
1503 :value value
1504 :post-blank (count-lines com-end end))
1505 (cdr affiliated))))))
1507 (defun org-element-comment-interpreter (comment contents)
1508 "Interpret COMMENT element as Org syntax.
1509 CONTENTS is nil."
1510 (replace-regexp-in-string "^" "# " (org-element-property :value comment)))
1513 ;;;; Comment Block
1515 (defun org-element-comment-block-parser (limit affiliated)
1516 "Parse an export block.
1518 LIMIT bounds the search. AFFILIATED is a list of which CAR is
1519 the buffer position at the beginning of the first affiliated
1520 keyword and CDR is a plist of affiliated keywords along with
1521 their value.
1523 Return a list whose CAR is `comment-block' and CDR is a plist
1524 containing `:begin', `:end', `:hiddenp', `:value' and
1525 `:post-blank' keywords.
1527 Assume point is at comment block beginning."
1528 (let ((case-fold-search t))
1529 (if (not (save-excursion
1530 (re-search-forward "^[ \t]*#\\+END_COMMENT[ \t]*$" limit t)))
1531 ;; Incomplete block: parse it as a paragraph.
1532 (org-element-paragraph-parser limit affiliated)
1533 (let ((contents-end (match-beginning 0)))
1534 (save-excursion
1535 (let* ((begin (car affiliated))
1536 (contents-begin (progn (forward-line) (point)))
1537 (hidden (org-invisible-p2))
1538 (pos-before-blank (progn (goto-char contents-end)
1539 (forward-line)
1540 (point)))
1541 (end (progn (skip-chars-forward " \r\t\n" limit)
1542 (skip-chars-backward " \t")
1543 (if (bolp) (point) (line-end-position))))
1544 (value (buffer-substring-no-properties
1545 contents-begin contents-end)))
1546 (list 'comment-block
1547 (nconc
1548 (list :begin begin
1549 :end end
1550 :value value
1551 :hiddenp hidden
1552 :post-blank (count-lines pos-before-blank end))
1553 (cdr affiliated)))))))))
1555 (defun org-element-comment-block-interpreter (comment-block contents)
1556 "Interpret COMMENT-BLOCK element as Org syntax.
1557 CONTENTS is nil."
1558 (format "#+BEGIN_COMMENT\n%s#+END_COMMENT"
1559 (org-remove-indentation (org-element-property :value comment-block))))
1562 ;;;; Example Block
1564 (defun org-element-example-block-parser (limit affiliated)
1565 "Parse an example block.
1567 LIMIT bounds the search. AFFILIATED is a list of which CAR is
1568 the buffer position at the beginning of the first affiliated
1569 keyword and CDR is a plist of affiliated keywords along with
1570 their value.
1572 Return a list whose CAR is `example-block' and CDR is a plist
1573 containing `:begin', `:end', `:number-lines', `:preserve-indent',
1574 `:retain-labels', `:use-labels', `:label-fmt', `:hiddenp',
1575 `:switches', `:value' and `:post-blank' keywords."
1576 (let ((case-fold-search t))
1577 (if (not (save-excursion
1578 (re-search-forward "^[ \t]*#\\+END_EXAMPLE[ \t]*$" limit t)))
1579 ;; Incomplete block: parse it as a paragraph.
1580 (org-element-paragraph-parser limit affiliated)
1581 (let ((contents-end (match-beginning 0)))
1582 (save-excursion
1583 (let* ((switches
1584 (progn (looking-at "^[ \t]*#\\+BEGIN_EXAMPLE\\(?: +\\(.*\\)\\)?")
1585 (org-match-string-no-properties 1)))
1586 ;; Switches analysis
1587 (number-lines (cond ((not switches) nil)
1588 ((string-match "-n\\>" switches) 'new)
1589 ((string-match "+n\\>" switches) 'continued)))
1590 (preserve-indent (and switches (string-match "-i\\>" switches)))
1591 ;; Should labels be retained in (or stripped from) example
1592 ;; blocks?
1593 (retain-labels
1594 (or (not switches)
1595 (not (string-match "-r\\>" switches))
1596 (and number-lines (string-match "-k\\>" switches))))
1597 ;; What should code-references use - labels or
1598 ;; line-numbers?
1599 (use-labels
1600 (or (not switches)
1601 (and retain-labels (not (string-match "-k\\>" switches)))))
1602 (label-fmt (and switches
1603 (string-match "-l +\"\\([^\"\n]+\\)\"" switches)
1604 (match-string 1 switches)))
1605 ;; Standard block parsing.
1606 (begin (car affiliated))
1607 (contents-begin (progn (forward-line) (point)))
1608 (hidden (org-invisible-p2))
1609 (value (org-unescape-code-in-string
1610 (buffer-substring-no-properties
1611 contents-begin contents-end)))
1612 (pos-before-blank (progn (goto-char contents-end)
1613 (forward-line)
1614 (point)))
1615 (end (progn (skip-chars-forward " \r\t\n" limit)
1616 (skip-chars-backward " \t")
1617 (if (bolp) (point) (line-end-position)))))
1618 (list 'example-block
1619 (nconc
1620 (list :begin begin
1621 :end end
1622 :value value
1623 :switches switches
1624 :number-lines number-lines
1625 :preserve-indent preserve-indent
1626 :retain-labels retain-labels
1627 :use-labels use-labels
1628 :label-fmt label-fmt
1629 :hiddenp hidden
1630 :post-blank (count-lines pos-before-blank end))
1631 (cdr affiliated)))))))))
1633 (defun org-element-example-block-interpreter (example-block contents)
1634 "Interpret EXAMPLE-BLOCK element as Org syntax.
1635 CONTENTS is nil."
1636 (let ((switches (org-element-property :switches example-block)))
1637 (concat "#+BEGIN_EXAMPLE" (and switches (concat " " switches)) "\n"
1638 (org-remove-indentation
1639 (org-escape-code-in-string
1640 (org-element-property :value example-block)))
1641 "#+END_EXAMPLE")))
1644 ;;;; Export Block
1646 (defun org-element-export-block-parser (limit affiliated)
1647 "Parse an export block.
1649 LIMIT bounds the search. AFFILIATED is a list of which CAR is
1650 the buffer position at the beginning of the first affiliated
1651 keyword and CDR is a plist of affiliated keywords along with
1652 their value.
1654 Return a list whose CAR is `export-block' and CDR is a plist
1655 containing `:begin', `:end', `:type', `:hiddenp', `:value' and
1656 `:post-blank' keywords.
1658 Assume point is at export-block beginning."
1659 (let* ((case-fold-search t)
1660 (type (progn (looking-at "[ \t]*#\\+BEGIN_\\(\\S-+\\)")
1661 (upcase (org-match-string-no-properties 1)))))
1662 (if (not (save-excursion
1663 (re-search-forward
1664 (format "^[ \t]*#\\+END_%s[ \t]*$" type) limit t)))
1665 ;; Incomplete block: parse it as a paragraph.
1666 (org-element-paragraph-parser limit affiliated)
1667 (let ((contents-end (match-beginning 0)))
1668 (save-excursion
1669 (let* ((begin (car affiliated))
1670 (contents-begin (progn (forward-line) (point)))
1671 (hidden (org-invisible-p2))
1672 (pos-before-blank (progn (goto-char contents-end)
1673 (forward-line)
1674 (point)))
1675 (end (progn (skip-chars-forward " \r\t\n" limit)
1676 (skip-chars-backward " \t")
1677 (if (bolp) (point) (line-end-position))))
1678 (value (buffer-substring-no-properties contents-begin
1679 contents-end)))
1680 (list 'export-block
1681 (nconc
1682 (list :begin begin
1683 :end end
1684 :type type
1685 :value value
1686 :hiddenp hidden
1687 :post-blank (count-lines pos-before-blank end))
1688 (cdr affiliated)))))))))
1690 (defun org-element-export-block-interpreter (export-block contents)
1691 "Interpret EXPORT-BLOCK element as Org syntax.
1692 CONTENTS is nil."
1693 (let ((type (org-element-property :type export-block)))
1694 (concat (format "#+BEGIN_%s\n" type)
1695 (org-element-property :value export-block)
1696 (format "#+END_%s" type))))
1699 ;;;; Fixed-width
1701 (defun org-element-fixed-width-parser (limit affiliated)
1702 "Parse a fixed-width section.
1704 LIMIT bounds the search. AFFILIATED is a list of which CAR is
1705 the buffer position at the beginning of the first affiliated
1706 keyword and CDR is a plist of affiliated keywords along with
1707 their value.
1709 Return a list whose CAR is `fixed-width' and CDR is a plist
1710 containing `:begin', `:end', `:value' and `:post-blank' keywords.
1712 Assume point is at the beginning of the fixed-width area."
1713 (save-excursion
1714 (let* ((begin (car affiliated))
1715 value
1716 (end-area
1717 (progn
1718 (while (and (< (point) limit)
1719 (looking-at "[ \t]*:\\( \\|$\\)"))
1720 ;; Accumulate text without starting colons.
1721 (setq value
1722 (concat value
1723 (buffer-substring-no-properties
1724 (match-end 0) (point-at-eol))
1725 "\n"))
1726 (forward-line))
1727 (point)))
1728 (end (progn (skip-chars-forward " \r\t\n" limit)
1729 (skip-chars-backward " \t")
1730 (if (bolp) (point) (line-end-position)))))
1731 (list 'fixed-width
1732 (nconc
1733 (list :begin begin
1734 :end end
1735 :value value
1736 :post-blank (count-lines end-area end))
1737 (cdr affiliated))))))
1739 (defun org-element-fixed-width-interpreter (fixed-width contents)
1740 "Interpret FIXED-WIDTH element as Org syntax.
1741 CONTENTS is nil."
1742 (replace-regexp-in-string
1743 "^" ": " (substring (org-element-property :value fixed-width) 0 -1)))
1746 ;;;; Horizontal Rule
1748 (defun org-element-horizontal-rule-parser (limit affiliated)
1749 "Parse an horizontal rule.
1751 LIMIT bounds the search. AFFILIATED is a list of which CAR is
1752 the buffer position at the beginning of the first affiliated
1753 keyword and CDR is a plist of affiliated keywords along with
1754 their value.
1756 Return a list whose CAR is `horizontal-rule' and CDR is a plist
1757 containing `:begin', `:end' and `:post-blank' keywords."
1758 (save-excursion
1759 (let ((begin (car affiliated))
1760 (post-hr (progn (forward-line) (point)))
1761 (end (progn (skip-chars-forward " \r\t\n" limit)
1762 (skip-chars-backward " \t")
1763 (if (bolp) (point) (line-end-position)))))
1764 (list 'horizontal-rule
1765 (nconc
1766 (list :begin begin
1767 :end end
1768 :post-blank (count-lines post-hr end))
1769 (cdr affiliated))))))
1771 (defun org-element-horizontal-rule-interpreter (horizontal-rule contents)
1772 "Interpret HORIZONTAL-RULE element as Org syntax.
1773 CONTENTS is nil."
1774 "-----")
1777 ;;;; Keyword
1779 (defun org-element-keyword-parser (limit affiliated)
1780 "Parse a keyword at point.
1782 LIMIT bounds the search. AFFILIATED is a list of which CAR is
1783 the buffer position at the beginning of the first affiliated
1784 keyword and CDR is a plist of affiliated keywords along with
1785 their value.
1787 Return a list whose CAR is `keyword' and CDR is a plist
1788 containing `:key', `:value', `:begin', `:end' and `:post-blank'
1789 keywords."
1790 (save-excursion
1791 (let ((begin (car affiliated))
1792 (key (progn (looking-at "[ \t]*#\\+\\(\\S-+*\\):")
1793 (upcase (org-match-string-no-properties 1))))
1794 (value (org-trim (buffer-substring-no-properties
1795 (match-end 0) (point-at-eol))))
1796 (pos-before-blank (progn (forward-line) (point)))
1797 (end (progn (skip-chars-forward " \r\t\n" limit)
1798 (skip-chars-backward " \t")
1799 (if (bolp) (point) (line-end-position)))))
1800 (list 'keyword
1801 (nconc
1802 (list :key key
1803 :value value
1804 :begin begin
1805 :end end
1806 :post-blank (count-lines pos-before-blank end))
1807 (cdr affiliated))))))
1809 (defun org-element-keyword-interpreter (keyword contents)
1810 "Interpret KEYWORD element as Org syntax.
1811 CONTENTS is nil."
1812 (format "#+%s: %s"
1813 (org-element-property :key keyword)
1814 (org-element-property :value keyword)))
1817 ;;;; Latex Environment
1819 (defun org-element-latex-environment-parser (limit affiliated)
1820 "Parse a LaTeX environment.
1822 LIMIT bounds the search. AFFILIATED is a list of which CAR is
1823 the buffer position at the beginning of the first affiliated
1824 keyword and CDR is a plist of affiliated keywords along with
1825 their value.
1827 Return a list whose CAR is `latex-environment' and CDR is a plist
1828 containing `:begin', `:end', `:value' and `:post-blank'
1829 keywords.
1831 Assume point is at the beginning of the latex environment."
1832 (save-excursion
1833 (let ((case-fold-search t)
1834 (code-begin (point)))
1835 (looking-at "[ \t]*\\\\begin{\\([A-Za-z0-9]+\\*?\\)}")
1836 (if (not (re-search-forward (format "^[ \t]*\\\\end{%s}[ \t]*$"
1837 (regexp-quote (match-string 1)))
1838 limit t))
1839 ;; Incomplete latex environment: parse it as a paragraph.
1840 (org-element-paragraph-parser limit affiliated)
1841 (let* ((code-end (progn (forward-line) (point)))
1842 (begin (car affiliated))
1843 (value (buffer-substring-no-properties code-begin code-end))
1844 (end (progn (skip-chars-forward " \r\t\n" limit)
1845 (skip-chars-backward " \t")
1846 (if (bolp) (point) (line-end-position)))))
1847 (list 'latex-environment
1848 (nconc
1849 (list :begin begin
1850 :end end
1851 :value value
1852 :post-blank (count-lines code-end end))
1853 (cdr affiliated))))))))
1855 (defun org-element-latex-environment-interpreter (latex-environment contents)
1856 "Interpret LATEX-ENVIRONMENT element as Org syntax.
1857 CONTENTS is nil."
1858 (org-element-property :value latex-environment))
1861 ;;;; Node Property
1863 (defun org-element-node-property-parser (limit)
1864 "Parse a node-property at point.
1866 LIMIT bounds the search.
1868 Return a list whose CAR is `node-property' and CDR is a plist
1869 containing `:key', `:value', `:begin', `:end' and `:post-blank'
1870 keywords."
1871 (save-excursion
1872 (let ((case-fold-search t)
1873 (begin (point))
1874 (key (progn (looking-at "[ \t]*:\\(.*?\\):[ \t]+\\(.*?\\)[ \t]*$")
1875 (org-match-string-no-properties 1)))
1876 (value (org-match-string-no-properties 2))
1877 (pos-before-blank (progn (forward-line) (point)))
1878 (end (progn (skip-chars-forward " \r\t\n" limit)
1879 (if (eobp) (point) (point-at-bol)))))
1880 (list 'node-property
1881 (list :key key
1882 :value value
1883 :begin begin
1884 :end end
1885 :post-blank (count-lines pos-before-blank end))))))
1887 (defun org-element-node-property-interpreter (node-property contents)
1888 "Interpret NODE-PROPERTY element as Org syntax.
1889 CONTENTS is nil."
1890 (format org-property-format
1891 (format ":%s:" (org-element-property :key node-property))
1892 (org-element-property :value node-property)))
1895 ;;;; Paragraph
1897 (defun org-element-paragraph-parser (limit affiliated)
1898 "Parse a paragraph.
1900 LIMIT bounds the search. AFFILIATED is a list of which CAR is
1901 the buffer position at the beginning of the first affiliated
1902 keyword and CDR is a plist of affiliated keywords along with
1903 their value.
1905 Return a list whose CAR is `paragraph' and CDR is a plist
1906 containing `:begin', `:end', `:contents-begin' and
1907 `:contents-end' and `:post-blank' keywords.
1909 Assume point is at the beginning of the paragraph."
1910 (save-excursion
1911 (let* ((begin (car affiliated))
1912 (contents-begin (point))
1913 (before-blank
1914 (let ((case-fold-search t))
1915 (end-of-line)
1916 (if (not (re-search-forward
1917 org-element-paragraph-separate limit 'm))
1918 limit
1919 ;; A matching `org-element-paragraph-separate' is not
1920 ;; necessarily the end of the paragraph. In
1921 ;; particular, lines starting with # or : as a first
1922 ;; non-space character are ambiguous. We have check
1923 ;; if they are valid Org syntax (i.e. not an
1924 ;; incomplete keyword).
1925 (beginning-of-line)
1926 (while (not
1928 ;; There's no ambiguity for other symbols or
1929 ;; empty lines: stop here.
1930 (looking-at "[ \t]*\\(?:[^:#]\\|$\\)")
1931 ;; Stop at valid fixed-width areas.
1932 (looking-at "[ \t]*:\\(?: \\|$\\)")
1933 ;; Stop at drawers.
1934 (and (looking-at org-drawer-regexp)
1935 (save-excursion
1936 (re-search-forward
1937 "^[ \t]*:END:[ \t]*$" limit t)))
1938 ;; Stop at valid comments.
1939 (looking-at "[ \t]*#\\(?: \\|$\\)")
1940 ;; Stop at valid dynamic blocks.
1941 (and (looking-at org-dblock-start-re)
1942 (save-excursion
1943 (re-search-forward
1944 "^[ \t]*#\\+END:?[ \t]*$" limit t)))
1945 ;; Stop at valid blocks.
1946 (and (looking-at
1947 "[ \t]*#\\+BEGIN_\\(\\S-+\\)")
1948 (save-excursion
1949 (re-search-forward
1950 (format "^[ \t]*#\\+END_%s[ \t]*$"
1951 (match-string 1))
1952 limit t)))
1953 ;; Stop at valid latex environments.
1954 (and (looking-at
1955 "^[ \t]*\\\\begin{\\([A-Za-z0-9]+\\*?\\)}[ \t]*$")
1956 (save-excursion
1957 (re-search-forward
1958 (format "^[ \t]*\\\\end{%s}[ \t]*$"
1959 (match-string 1))
1960 limit t)))
1961 ;; Stop at valid keywords.
1962 (looking-at "[ \t]*#\\+\\S-+:")
1963 ;; Skip everything else.
1964 (not
1965 (progn
1966 (end-of-line)
1967 (re-search-forward org-element-paragraph-separate
1968 limit 'm)))))
1969 (beginning-of-line)))
1970 (if (= (point) limit) limit
1971 (goto-char (line-beginning-position)))))
1972 (contents-end (progn (skip-chars-backward " \r\t\n" contents-begin)
1973 (forward-line)
1974 (point)))
1975 (end (progn (skip-chars-forward " \r\t\n" limit)
1976 (skip-chars-backward " \t")
1977 (if (bolp) (point) (line-end-position)))))
1978 (list 'paragraph
1979 (nconc
1980 (list :begin begin
1981 :end end
1982 :contents-begin contents-begin
1983 :contents-end contents-end
1984 :post-blank (count-lines before-blank end))
1985 (cdr affiliated))))))
1987 (defun org-element-paragraph-interpreter (paragraph contents)
1988 "Interpret PARAGRAPH element as Org syntax.
1989 CONTENTS is the contents of the element."
1990 contents)
1993 ;;;; Planning
1995 (defun org-element-planning-parser (limit)
1996 "Parse a planning.
1998 LIMIT bounds the search.
2000 Return a list whose CAR is `planning' and CDR is a plist
2001 containing `:closed', `:deadline', `:scheduled', `:begin', `:end'
2002 and `:post-blank' keywords."
2003 (save-excursion
2004 (let* ((case-fold-search nil)
2005 (begin (point))
2006 (post-blank (let ((before-blank (progn (forward-line) (point))))
2007 (skip-chars-forward " \r\t\n" limit)
2008 (skip-chars-backward " \t")
2009 (unless (bolp) (end-of-line))
2010 (count-lines before-blank (point))))
2011 (end (point))
2012 closed deadline scheduled)
2013 (goto-char begin)
2014 (while (re-search-forward org-keyword-time-not-clock-regexp
2015 (line-end-position) t)
2016 (goto-char (match-end 1))
2017 (org-skip-whitespace)
2018 (let ((time (buffer-substring-no-properties
2019 (1+ (point)) (1- (match-end 0))))
2020 (keyword (match-string 1)))
2021 (cond ((equal keyword org-closed-string) (setq closed time))
2022 ((equal keyword org-deadline-string) (setq deadline time))
2023 (t (setq scheduled time)))))
2024 (list 'planning
2025 (list :closed closed
2026 :deadline deadline
2027 :scheduled scheduled
2028 :begin begin
2029 :end end
2030 :post-blank post-blank)))))
2032 (defun org-element-planning-interpreter (planning contents)
2033 "Interpret PLANNING element as Org syntax.
2034 CONTENTS is nil."
2035 (mapconcat
2036 'identity
2037 (delq nil
2038 (list (let ((closed (org-element-property :closed planning)))
2039 (when closed (concat org-closed-string " [" closed "]")))
2040 (let ((deadline (org-element-property :deadline planning)))
2041 (when deadline (concat org-deadline-string " <" deadline ">")))
2042 (let ((scheduled (org-element-property :scheduled planning)))
2043 (when scheduled
2044 (concat org-scheduled-string " <" scheduled ">")))))
2045 " "))
2048 ;;;; Quote Section
2050 (defun org-element-quote-section-parser (limit)
2051 "Parse a quote section.
2053 LIMIT bounds the search.
2055 Return a list whose CAR is `quote-section' and CDR is a plist
2056 containing `:begin', `:end', `:value' and `:post-blank' keywords.
2058 Assume point is at beginning of the section."
2059 (save-excursion
2060 (let* ((begin (point))
2061 (end (progn (org-with-limited-levels (outline-next-heading))
2062 (point)))
2063 (pos-before-blank (progn (skip-chars-backward " \r\t\n")
2064 (forward-line)
2065 (point)))
2066 (value (buffer-substring-no-properties begin pos-before-blank)))
2067 (list 'quote-section
2068 (list :begin begin
2069 :end end
2070 :value value
2071 :post-blank (count-lines pos-before-blank end))))))
2073 (defun org-element-quote-section-interpreter (quote-section contents)
2074 "Interpret QUOTE-SECTION element as Org syntax.
2075 CONTENTS is nil."
2076 (org-element-property :value quote-section))
2079 ;;;; Src Block
2081 (defun org-element-src-block-parser (limit affiliated)
2082 "Parse a src block.
2084 LIMIT bounds the search. AFFILIATED is a list of which CAR is
2085 the buffer position at the beginning of the first affiliated
2086 keyword and CDR is a plist of affiliated keywords along with
2087 their value.
2089 Return a list whose CAR is `src-block' and CDR is a plist
2090 containing `:language', `:switches', `:parameters', `:begin',
2091 `:end', `:hiddenp', `:number-lines', `:retain-labels',
2092 `:use-labels', `:label-fmt', `:preserve-indent', `:value' and
2093 `:post-blank' keywords.
2095 Assume point is at the beginning of the block."
2096 (let ((case-fold-search t))
2097 (if (not (save-excursion (re-search-forward "^[ \t]*#\\+END_SRC[ \t]*$"
2098 limit t)))
2099 ;; Incomplete block: parse it as a paragraph.
2100 (org-element-paragraph-parser limit affiliated)
2101 (let ((contents-end (match-beginning 0)))
2102 (save-excursion
2103 (let* ((begin (car affiliated))
2104 ;; Get language as a string.
2105 (language
2106 (progn
2107 (looking-at
2108 (concat "^[ \t]*#\\+BEGIN_SRC"
2109 "\\(?: +\\(\\S-+\\)\\)?"
2110 "\\(\\(?: +\\(?:-l \".*?\"\\|[-+][A-Za-z]\\)\\)+\\)?"
2111 "\\(.*\\)[ \t]*$"))
2112 (org-match-string-no-properties 1)))
2113 ;; Get switches.
2114 (switches (org-match-string-no-properties 2))
2115 ;; Get parameters.
2116 (parameters (org-match-string-no-properties 3))
2117 ;; Switches analysis
2118 (number-lines (cond ((not switches) nil)
2119 ((string-match "-n\\>" switches) 'new)
2120 ((string-match "+n\\>" switches) 'continued)))
2121 (preserve-indent (and switches (string-match "-i\\>" switches)))
2122 (label-fmt (and switches
2123 (string-match "-l +\"\\([^\"\n]+\\)\"" switches)
2124 (match-string 1 switches)))
2125 ;; Should labels be retained in (or stripped from)
2126 ;; src blocks?
2127 (retain-labels
2128 (or (not switches)
2129 (not (string-match "-r\\>" switches))
2130 (and number-lines (string-match "-k\\>" switches))))
2131 ;; What should code-references use - labels or
2132 ;; line-numbers?
2133 (use-labels
2134 (or (not switches)
2135 (and retain-labels (not (string-match "-k\\>" switches)))))
2136 ;; Get visibility status.
2137 (hidden (progn (forward-line) (org-invisible-p2)))
2138 ;; Retrieve code.
2139 (value (org-unescape-code-in-string
2140 (buffer-substring-no-properties (point) contents-end)))
2141 (pos-before-blank (progn (goto-char contents-end)
2142 (forward-line)
2143 (point)))
2144 ;; Get position after ending blank lines.
2145 (end (progn (skip-chars-forward " \r\t\n" limit)
2146 (skip-chars-backward " \t")
2147 (if (bolp) (point) (line-end-position)))))
2148 (list 'src-block
2149 (nconc
2150 (list :language language
2151 :switches (and (org-string-nw-p switches)
2152 (org-trim switches))
2153 :parameters (and (org-string-nw-p parameters)
2154 (org-trim parameters))
2155 :begin begin
2156 :end end
2157 :number-lines number-lines
2158 :preserve-indent preserve-indent
2159 :retain-labels retain-labels
2160 :use-labels use-labels
2161 :label-fmt label-fmt
2162 :hiddenp hidden
2163 :value value
2164 :post-blank (count-lines pos-before-blank end))
2165 (cdr affiliated)))))))))
2167 (defun org-element-src-block-interpreter (src-block contents)
2168 "Interpret SRC-BLOCK element as Org syntax.
2169 CONTENTS is nil."
2170 (let ((lang (org-element-property :language src-block))
2171 (switches (org-element-property :switches src-block))
2172 (params (org-element-property :parameters src-block))
2173 (value (let ((val (org-element-property :value src-block)))
2174 (cond
2175 (org-src-preserve-indentation val)
2176 ((zerop org-edit-src-content-indentation)
2177 (org-remove-indentation val))
2179 (let ((ind (make-string
2180 org-edit-src-content-indentation 32)))
2181 (replace-regexp-in-string
2182 "\\(^\\)[ \t]*\\S-" ind
2183 (org-remove-indentation val) nil nil 1)))))))
2184 (concat (format "#+BEGIN_SRC%s\n"
2185 (concat (and lang (concat " " lang))
2186 (and switches (concat " " switches))
2187 (and params (concat " " params))))
2188 (org-escape-code-in-string value)
2189 "#+END_SRC")))
2192 ;;;; Table
2194 (defun org-element-table-parser (limit affiliated)
2195 "Parse a table at point.
2197 LIMIT bounds the search. AFFILIATED is a list of which CAR is
2198 the buffer position at the beginning of the first affiliated
2199 keyword and CDR is a plist of affiliated keywords along with
2200 their value.
2202 Return a list whose CAR is `table' and CDR is a plist containing
2203 `:begin', `:end', `:tblfm', `:type', `:contents-begin',
2204 `:contents-end', `:value' and `:post-blank' keywords.
2206 Assume point is at the beginning of the table."
2207 (save-excursion
2208 (let* ((case-fold-search t)
2209 (table-begin (point))
2210 (type (if (org-at-table.el-p) 'table.el 'org))
2211 (begin (car affiliated))
2212 (table-end
2213 (if (re-search-forward org-table-any-border-regexp limit 'm)
2214 (goto-char (match-beginning 0))
2215 (point)))
2216 (tblfm (let (acc)
2217 (while (looking-at "[ \t]*#\\+TBLFM: +\\(.*\\)[ \t]*$")
2218 (push (org-match-string-no-properties 1) acc)
2219 (forward-line))
2220 acc))
2221 (pos-before-blank (point))
2222 (end (progn (skip-chars-forward " \r\t\n" limit)
2223 (skip-chars-backward " \t")
2224 (if (bolp) (point) (line-end-position)))))
2225 (list 'table
2226 (nconc
2227 (list :begin begin
2228 :end end
2229 :type type
2230 :tblfm tblfm
2231 ;; Only `org' tables have contents. `table.el' tables
2232 ;; use a `:value' property to store raw table as
2233 ;; a string.
2234 :contents-begin (and (eq type 'org) table-begin)
2235 :contents-end (and (eq type 'org) table-end)
2236 :value (and (eq type 'table.el)
2237 (buffer-substring-no-properties
2238 table-begin table-end))
2239 :post-blank (count-lines pos-before-blank end))
2240 (cdr affiliated))))))
2242 (defun org-element-table-interpreter (table contents)
2243 "Interpret TABLE element as Org syntax.
2244 CONTENTS is nil."
2245 (if (eq (org-element-property :type table) 'table.el)
2246 (org-remove-indentation (org-element-property :value table))
2247 (concat (with-temp-buffer (insert contents)
2248 (org-table-align)
2249 (buffer-string))
2250 (mapconcat (lambda (fm) (concat "#+TBLFM: " fm))
2251 (reverse (org-element-property :tblfm table))
2252 "\n"))))
2255 ;;;; Table Row
2257 (defun org-element-table-row-parser (limit)
2258 "Parse table row at point.
2260 LIMIT bounds the search.
2262 Return a list whose CAR is `table-row' and CDR is a plist
2263 containing `:begin', `:end', `:contents-begin', `:contents-end',
2264 `:type' and `:post-blank' keywords."
2265 (save-excursion
2266 (let* ((type (if (looking-at "^[ \t]*|-") 'rule 'standard))
2267 (begin (point))
2268 ;; A table rule has no contents. In that case, ensure
2269 ;; CONTENTS-BEGIN matches CONTENTS-END.
2270 (contents-begin (and (eq type 'standard)
2271 (search-forward "|")
2272 (point)))
2273 (contents-end (and (eq type 'standard)
2274 (progn
2275 (end-of-line)
2276 (skip-chars-backward " \t")
2277 (point))))
2278 (end (progn (forward-line) (point))))
2279 (list 'table-row
2280 (list :type type
2281 :begin begin
2282 :end end
2283 :contents-begin contents-begin
2284 :contents-end contents-end
2285 :post-blank 0)))))
2287 (defun org-element-table-row-interpreter (table-row contents)
2288 "Interpret TABLE-ROW element as Org syntax.
2289 CONTENTS is the contents of the table row."
2290 (if (eq (org-element-property :type table-row) 'rule) "|-"
2291 (concat "| " contents)))
2294 ;;;; Verse Block
2296 (defun org-element-verse-block-parser (limit affiliated)
2297 "Parse a verse block.
2299 LIMIT bounds the search. AFFILIATED is a list of which CAR is
2300 the buffer position at the beginning of the first affiliated
2301 keyword and CDR is a plist of affiliated keywords along with
2302 their value.
2304 Return a list whose CAR is `verse-block' and CDR is a plist
2305 containing `:begin', `:end', `:contents-begin', `:contents-end',
2306 `:hiddenp' and `:post-blank' keywords.
2308 Assume point is at beginning of the block."
2309 (let ((case-fold-search t))
2310 (if (not (save-excursion
2311 (re-search-forward "^[ \t]*#\\+END_VERSE[ \t]*$" limit t)))
2312 ;; Incomplete block: parse it as a paragraph.
2313 (org-element-paragraph-parser limit affiliated)
2314 (let ((contents-end (match-beginning 0)))
2315 (save-excursion
2316 (let* ((begin (car affiliated))
2317 (hidden (progn (forward-line) (org-invisible-p2)))
2318 (contents-begin (point))
2319 (pos-before-blank (progn (goto-char contents-end)
2320 (forward-line)
2321 (point)))
2322 (end (progn (skip-chars-forward " \r\t\n" limit)
2323 (skip-chars-backward " \t")
2324 (if (bolp) (point) (line-end-position)))))
2325 (list 'verse-block
2326 (nconc
2327 (list :begin begin
2328 :end end
2329 :contents-begin contents-begin
2330 :contents-end contents-end
2331 :hiddenp hidden
2332 :post-blank (count-lines pos-before-blank end))
2333 (cdr affiliated)))))))))
2335 (defun org-element-verse-block-interpreter (verse-block contents)
2336 "Interpret VERSE-BLOCK element as Org syntax.
2337 CONTENTS is verse block contents."
2338 (format "#+BEGIN_VERSE\n%s#+END_VERSE" contents))
2342 ;;; Objects
2344 ;; Unlike to elements, interstices can be found between objects.
2345 ;; That's why, along with the parser, successor functions are provided
2346 ;; for each object. Some objects share the same successor (i.e. `code'
2347 ;; and `verbatim' objects).
2349 ;; A successor must accept a single argument bounding the search. It
2350 ;; will return either a cons cell whose CAR is the object's type, as
2351 ;; a symbol, and CDR the position of its next occurrence, or nil.
2353 ;; Successors follow the naming convention:
2354 ;; org-element-NAME-successor, where NAME is the name of the
2355 ;; successor, as defined in `org-element-all-successors'.
2357 ;; Some object types (i.e. `italic') are recursive. Restrictions on
2358 ;; object types they can contain will be specified in
2359 ;; `org-element-object-restrictions'.
2361 ;; Adding a new type of object is simple. Implement a successor,
2362 ;; a parser, and an interpreter for it, all following the naming
2363 ;; convention. Register type in `org-element-all-objects' and
2364 ;; successor in `org-element-all-successors'. Maybe tweak
2365 ;; restrictions about it, and that's it.
2368 ;;;; Bold
2370 (defun org-element-bold-parser ()
2371 "Parse bold object at point.
2373 Return a list whose CAR is `bold' and CDR is a plist with
2374 `:begin', `:end', `:contents-begin' and `:contents-end' and
2375 `:post-blank' keywords.
2377 Assume point is at the first star marker."
2378 (save-excursion
2379 (unless (bolp) (backward-char 1))
2380 (looking-at org-emph-re)
2381 (let ((begin (match-beginning 2))
2382 (contents-begin (match-beginning 4))
2383 (contents-end (match-end 4))
2384 (post-blank (progn (goto-char (match-end 2))
2385 (skip-chars-forward " \t")))
2386 (end (point)))
2387 (list 'bold
2388 (list :begin begin
2389 :end end
2390 :contents-begin contents-begin
2391 :contents-end contents-end
2392 :post-blank post-blank)))))
2394 (defun org-element-bold-interpreter (bold contents)
2395 "Interpret BOLD object as Org syntax.
2396 CONTENTS is the contents of the object."
2397 (format "*%s*" contents))
2399 (defun org-element-text-markup-successor (limit)
2400 "Search for the next text-markup object.
2402 LIMIT bounds the search.
2404 Return value is a cons cell whose CAR is a symbol among `bold',
2405 `italic', `underline', `strike-through', `code' and `verbatim'
2406 and CDR is beginning position."
2407 (save-excursion
2408 (unless (bolp) (backward-char))
2409 (when (re-search-forward org-emph-re limit t)
2410 (let ((marker (match-string 3)))
2411 (cons (cond
2412 ((equal marker "*") 'bold)
2413 ((equal marker "/") 'italic)
2414 ((equal marker "_") 'underline)
2415 ((equal marker "+") 'strike-through)
2416 ((equal marker "~") 'code)
2417 ((equal marker "=") 'verbatim)
2418 (t (error "Unknown marker at %d" (match-beginning 3))))
2419 (match-beginning 2))))))
2422 ;;;; Code
2424 (defun org-element-code-parser ()
2425 "Parse code object at point.
2427 Return a list whose CAR is `code' and CDR is a plist with
2428 `:value', `:begin', `:end' and `:post-blank' keywords.
2430 Assume point is at the first tilde marker."
2431 (save-excursion
2432 (unless (bolp) (backward-char 1))
2433 (looking-at org-emph-re)
2434 (let ((begin (match-beginning 2))
2435 (value (org-match-string-no-properties 4))
2436 (post-blank (progn (goto-char (match-end 2))
2437 (skip-chars-forward " \t")))
2438 (end (point)))
2439 (list 'code
2440 (list :value value
2441 :begin begin
2442 :end end
2443 :post-blank post-blank)))))
2445 (defun org-element-code-interpreter (code contents)
2446 "Interpret CODE object as Org syntax.
2447 CONTENTS is nil."
2448 (format "~%s~" (org-element-property :value code)))
2451 ;;;; Entity
2453 (defun org-element-entity-parser ()
2454 "Parse entity at point.
2456 Return a list whose CAR is `entity' and CDR a plist with
2457 `:begin', `:end', `:latex', `:latex-math-p', `:html', `:latin1',
2458 `:utf-8', `:ascii', `:use-brackets-p' and `:post-blank' as
2459 keywords.
2461 Assume point is at the beginning of the entity."
2462 (save-excursion
2463 (looking-at "\\\\\\(there4\\|sup[123]\\|frac[13][24]\\|[a-zA-Z]+\\)\\($\\|{}\\|[^[:alpha:]]\\)")
2464 (let* ((value (org-entity-get (match-string 1)))
2465 (begin (match-beginning 0))
2466 (bracketsp (string= (match-string 2) "{}"))
2467 (post-blank (progn (goto-char (match-end 1))
2468 (when bracketsp (forward-char 2))
2469 (skip-chars-forward " \t")))
2470 (end (point)))
2471 (list 'entity
2472 (list :name (car value)
2473 :latex (nth 1 value)
2474 :latex-math-p (nth 2 value)
2475 :html (nth 3 value)
2476 :ascii (nth 4 value)
2477 :latin1 (nth 5 value)
2478 :utf-8 (nth 6 value)
2479 :begin begin
2480 :end end
2481 :use-brackets-p bracketsp
2482 :post-blank post-blank)))))
2484 (defun org-element-entity-interpreter (entity contents)
2485 "Interpret ENTITY object as Org syntax.
2486 CONTENTS is nil."
2487 (concat "\\"
2488 (org-element-property :name entity)
2489 (when (org-element-property :use-brackets-p entity) "{}")))
2491 (defun org-element-latex-or-entity-successor (limit)
2492 "Search for the next latex-fragment or entity object.
2494 LIMIT bounds the search.
2496 Return value is a cons cell whose CAR is `entity' or
2497 `latex-fragment' and CDR is beginning position."
2498 (save-excursion
2499 (unless (bolp) (backward-char))
2500 (let ((matchers
2501 (remove "begin" (plist-get org-format-latex-options :matchers)))
2502 ;; ENTITY-RE matches both LaTeX commands and Org entities.
2503 (entity-re
2504 "\\\\\\(there4\\|sup[123]\\|frac[13][24]\\|[a-zA-Z]+\\)\\($\\|{}\\|[^[:alpha:]]\\)"))
2505 (when (re-search-forward
2506 (concat (mapconcat (lambda (e) (nth 1 (assoc e org-latex-regexps)))
2507 matchers "\\|")
2508 "\\|" entity-re)
2509 limit t)
2510 (goto-char (match-beginning 0))
2511 (if (looking-at entity-re)
2512 ;; Determine if it's a real entity or a LaTeX command.
2513 (cons (if (org-entity-get (match-string 1)) 'entity 'latex-fragment)
2514 (match-beginning 0))
2515 ;; No entity nor command: point is at a LaTeX fragment.
2516 ;; Determine its type to get the correct beginning position.
2517 (cons 'latex-fragment
2518 (catch 'return
2519 (mapc (lambda (e)
2520 (when (looking-at (nth 1 (assoc e org-latex-regexps)))
2521 (throw 'return
2522 (match-beginning
2523 (nth 2 (assoc e org-latex-regexps))))))
2524 matchers)
2525 (point))))))))
2528 ;;;; Export Snippet
2530 (defun org-element-export-snippet-parser ()
2531 "Parse export snippet at point.
2533 Return a list whose CAR is `export-snippet' and CDR a plist with
2534 `:begin', `:end', `:back-end', `:value' and `:post-blank' as
2535 keywords.
2537 Assume point is at the beginning of the snippet."
2538 (save-excursion
2539 (re-search-forward "@@\\([-A-Za-z0-9]+\\):" nil t)
2540 (let* ((begin (match-beginning 0))
2541 (back-end (org-match-string-no-properties 1))
2542 (value (buffer-substring-no-properties
2543 (point)
2544 (progn (re-search-forward "@@" nil t) (match-beginning 0))))
2545 (post-blank (skip-chars-forward " \t"))
2546 (end (point)))
2547 (list 'export-snippet
2548 (list :back-end back-end
2549 :value value
2550 :begin begin
2551 :end end
2552 :post-blank post-blank)))))
2554 (defun org-element-export-snippet-interpreter (export-snippet contents)
2555 "Interpret EXPORT-SNIPPET object as Org syntax.
2556 CONTENTS is nil."
2557 (format "@@%s:%s@@"
2558 (org-element-property :back-end export-snippet)
2559 (org-element-property :value export-snippet)))
2561 (defun org-element-export-snippet-successor (limit)
2562 "Search for the next export-snippet object.
2564 LIMIT bounds the search.
2566 Return value is a cons cell whose CAR is `export-snippet' and CDR
2567 its beginning position."
2568 (save-excursion
2569 (let (beg)
2570 (when (and (re-search-forward "@@[-A-Za-z0-9]+:" limit t)
2571 (setq beg (match-beginning 0))
2572 (search-forward "@@" limit t))
2573 (cons 'export-snippet beg)))))
2576 ;;;; Footnote Reference
2578 (defun org-element-footnote-reference-parser ()
2579 "Parse footnote reference at point.
2581 Return a list whose CAR is `footnote-reference' and CDR a plist
2582 with `:label', `:type', `:inline-definition', `:begin', `:end'
2583 and `:post-blank' as keywords."
2584 (save-excursion
2585 (looking-at org-footnote-re)
2586 (let* ((begin (point))
2587 (label (or (org-match-string-no-properties 2)
2588 (org-match-string-no-properties 3)
2589 (and (match-string 1)
2590 (concat "fn:" (org-match-string-no-properties 1)))))
2591 (type (if (or (not label) (match-string 1)) 'inline 'standard))
2592 (inner-begin (match-end 0))
2593 (inner-end
2594 (let ((count 1))
2595 (forward-char)
2596 (while (and (> count 0) (re-search-forward "[][]" nil t))
2597 (if (equal (match-string 0) "[") (incf count) (decf count)))
2598 (1- (point))))
2599 (post-blank (progn (goto-char (1+ inner-end))
2600 (skip-chars-forward " \t")))
2601 (end (point))
2602 (footnote-reference
2603 (list 'footnote-reference
2604 (list :label label
2605 :type type
2606 :begin begin
2607 :end end
2608 :post-blank post-blank))))
2609 (org-element-put-property
2610 footnote-reference :inline-definition
2611 (and (eq type 'inline)
2612 (org-element-parse-secondary-string
2613 (buffer-substring inner-begin inner-end)
2614 (org-element-restriction 'footnote-reference)
2615 footnote-reference))))))
2617 (defun org-element-footnote-reference-interpreter (footnote-reference contents)
2618 "Interpret FOOTNOTE-REFERENCE object as Org syntax.
2619 CONTENTS is nil."
2620 (let ((label (or (org-element-property :label footnote-reference) "fn:"))
2621 (def
2622 (let ((inline-def
2623 (org-element-property :inline-definition footnote-reference)))
2624 (if (not inline-def) ""
2625 (concat ":" (org-element-interpret-data inline-def))))))
2626 (format "[%s]" (concat label def))))
2628 (defun org-element-footnote-reference-successor (limit)
2629 "Search for the next footnote-reference object.
2631 LIMIT bounds the search.
2633 Return value is a cons cell whose CAR is `footnote-reference' and
2634 CDR is beginning position."
2635 (save-excursion
2636 (catch 'exit
2637 (while (re-search-forward org-footnote-re limit t)
2638 (save-excursion
2639 (let ((beg (match-beginning 0))
2640 (count 1))
2641 (backward-char)
2642 (while (re-search-forward "[][]" limit t)
2643 (if (equal (match-string 0) "[") (incf count) (decf count))
2644 (when (zerop count)
2645 (throw 'exit (cons 'footnote-reference beg))))))))))
2648 ;;;; Inline Babel Call
2650 (defun org-element-inline-babel-call-parser ()
2651 "Parse inline babel call at point.
2653 Return a list whose CAR is `inline-babel-call' and CDR a plist
2654 with `:begin', `:end', `:info' and `:post-blank' as keywords.
2656 Assume point is at the beginning of the babel call."
2657 (save-excursion
2658 (unless (bolp) (backward-char))
2659 (looking-at org-babel-inline-lob-one-liner-regexp)
2660 (let ((info (save-match-data (org-babel-lob-get-info)))
2661 (begin (match-end 1))
2662 (post-blank (progn (goto-char (match-end 0))
2663 (skip-chars-forward " \t")))
2664 (end (point)))
2665 (list 'inline-babel-call
2666 (list :begin begin
2667 :end end
2668 :info info
2669 :post-blank post-blank)))))
2671 (defun org-element-inline-babel-call-interpreter (inline-babel-call contents)
2672 "Interpret INLINE-BABEL-CALL object as Org syntax.
2673 CONTENTS is nil."
2674 (let* ((babel-info (org-element-property :info inline-babel-call))
2675 (main-source (car babel-info))
2676 (post-options (nth 1 babel-info)))
2677 (concat "call_"
2678 (if (string-match "\\[\\(\\[.*?\\]\\)\\]" main-source)
2679 ;; Remove redundant square brackets.
2680 (replace-match
2681 (match-string 1 main-source) nil nil main-source)
2682 main-source)
2683 (and post-options (format "[%s]" post-options)))))
2685 (defun org-element-inline-babel-call-successor (limit)
2686 "Search for the next inline-babel-call object.
2688 LIMIT bounds the search.
2690 Return value is a cons cell whose CAR is `inline-babel-call' and
2691 CDR is beginning position."
2692 (save-excursion
2693 ;; Use a simplified version of
2694 ;; `org-babel-inline-lob-one-liner-regexp'.
2695 (when (re-search-forward
2696 "call_\\([^()\n]+?\\)\\(?:\\[.*?\\]\\)?([^\n]*?)\\(\\[.*?\\]\\)?"
2697 limit t)
2698 (cons 'inline-babel-call (match-beginning 0)))))
2701 ;;;; Inline Src Block
2703 (defun org-element-inline-src-block-parser ()
2704 "Parse inline source block at point.
2706 LIMIT bounds the search.
2708 Return a list whose CAR is `inline-src-block' and CDR a plist
2709 with `:begin', `:end', `:language', `:value', `:parameters' and
2710 `:post-blank' as keywords.
2712 Assume point is at the beginning of the inline src block."
2713 (save-excursion
2714 (unless (bolp) (backward-char))
2715 (looking-at org-babel-inline-src-block-regexp)
2716 (let ((begin (match-beginning 1))
2717 (language (org-match-string-no-properties 2))
2718 (parameters (org-match-string-no-properties 4))
2719 (value (org-match-string-no-properties 5))
2720 (post-blank (progn (goto-char (match-end 0))
2721 (skip-chars-forward " \t")))
2722 (end (point)))
2723 (list 'inline-src-block
2724 (list :language language
2725 :value value
2726 :parameters parameters
2727 :begin begin
2728 :end end
2729 :post-blank post-blank)))))
2731 (defun org-element-inline-src-block-interpreter (inline-src-block contents)
2732 "Interpret INLINE-SRC-BLOCK object as Org syntax.
2733 CONTENTS is nil."
2734 (let ((language (org-element-property :language inline-src-block))
2735 (arguments (org-element-property :parameters inline-src-block))
2736 (body (org-element-property :value inline-src-block)))
2737 (format "src_%s%s{%s}"
2738 language
2739 (if arguments (format "[%s]" arguments) "")
2740 body)))
2742 (defun org-element-inline-src-block-successor (limit)
2743 "Search for the next inline-babel-call element.
2745 LIMIT bounds the search.
2747 Return value is a cons cell whose CAR is `inline-babel-call' and
2748 CDR is beginning position."
2749 (save-excursion
2750 (unless (bolp) (backward-char))
2751 (when (re-search-forward org-babel-inline-src-block-regexp limit t)
2752 (cons 'inline-src-block (match-beginning 1)))))
2754 ;;;; Italic
2756 (defun org-element-italic-parser ()
2757 "Parse italic object at point.
2759 Return a list whose CAR is `italic' and CDR is a plist with
2760 `:begin', `:end', `:contents-begin' and `:contents-end' and
2761 `:post-blank' keywords.
2763 Assume point is at the first slash marker."
2764 (save-excursion
2765 (unless (bolp) (backward-char 1))
2766 (looking-at org-emph-re)
2767 (let ((begin (match-beginning 2))
2768 (contents-begin (match-beginning 4))
2769 (contents-end (match-end 4))
2770 (post-blank (progn (goto-char (match-end 2))
2771 (skip-chars-forward " \t")))
2772 (end (point)))
2773 (list 'italic
2774 (list :begin begin
2775 :end end
2776 :contents-begin contents-begin
2777 :contents-end contents-end
2778 :post-blank post-blank)))))
2780 (defun org-element-italic-interpreter (italic contents)
2781 "Interpret ITALIC object as Org syntax.
2782 CONTENTS is the contents of the object."
2783 (format "/%s/" contents))
2786 ;;;; Latex Fragment
2788 (defun org-element-latex-fragment-parser ()
2789 "Parse latex fragment at point.
2791 Return a list whose CAR is `latex-fragment' and CDR a plist with
2792 `:value', `:begin', `:end', and `:post-blank' as keywords.
2794 Assume point is at the beginning of the latex fragment."
2795 (save-excursion
2796 (let* ((begin (point))
2797 (substring-match
2798 (catch 'exit
2799 (mapc (lambda (e)
2800 (let ((latex-regexp (nth 1 (assoc e org-latex-regexps))))
2801 (when (or (looking-at latex-regexp)
2802 (and (not (bobp))
2803 (save-excursion
2804 (backward-char)
2805 (looking-at latex-regexp))))
2806 (throw 'exit (nth 2 (assoc e org-latex-regexps))))))
2807 (plist-get org-format-latex-options :matchers))
2808 ;; None found: it's a macro.
2809 (looking-at "\\\\[a-zA-Z]+\\*?\\(\\(\\[[^][\n{}]*\\]\\)\\|\\({[^{}\n]*}\\)\\)*")
2811 (value (match-string-no-properties substring-match))
2812 (post-blank (progn (goto-char (match-end substring-match))
2813 (skip-chars-forward " \t")))
2814 (end (point)))
2815 (list 'latex-fragment
2816 (list :value value
2817 :begin begin
2818 :end end
2819 :post-blank post-blank)))))
2821 (defun org-element-latex-fragment-interpreter (latex-fragment contents)
2822 "Interpret LATEX-FRAGMENT object as Org syntax.
2823 CONTENTS is nil."
2824 (org-element-property :value latex-fragment))
2826 ;;;; Line Break
2828 (defun org-element-line-break-parser ()
2829 "Parse line break at point.
2831 Return a list whose CAR is `line-break', and CDR a plist with
2832 `:begin', `:end' and `:post-blank' keywords.
2834 Assume point is at the beginning of the line break."
2835 (list 'line-break (list :begin (point) :end (point-at-eol) :post-blank 0)))
2837 (defun org-element-line-break-interpreter (line-break contents)
2838 "Interpret LINE-BREAK object as Org syntax.
2839 CONTENTS is nil."
2840 "\\\\")
2842 (defun org-element-line-break-successor (limit)
2843 "Search for the next line-break object.
2845 LIMIT bounds the search.
2847 Return value is a cons cell whose CAR is `line-break' and CDR is
2848 beginning position."
2849 (save-excursion
2850 (let ((beg (and (re-search-forward "[^\\\\]\\(\\\\\\\\\\)[ \t]*$" limit t)
2851 (goto-char (match-beginning 1)))))
2852 ;; A line break can only happen on a non-empty line.
2853 (when (and beg (re-search-backward "\\S-" (point-at-bol) t))
2854 (cons 'line-break beg)))))
2857 ;;;; Link
2859 (defun org-element-link-parser ()
2860 "Parse link at point.
2862 Return a list whose CAR is `link' and CDR a plist with `:type',
2863 `:path', `:raw-link', `:application', `:search-option', `:begin',
2864 `:end', `:contents-begin', `:contents-end' and `:post-blank' as
2865 keywords.
2867 Assume point is at the beginning of the link."
2868 (save-excursion
2869 (let ((begin (point))
2870 end contents-begin contents-end link-end post-blank path type
2871 raw-link link search-option application)
2872 (cond
2873 ;; Type 1: Text targeted from a radio target.
2874 ((and org-target-link-regexp (looking-at org-target-link-regexp))
2875 (setq type "radio"
2876 link-end (match-end 0)
2877 path (org-match-string-no-properties 0)))
2878 ;; Type 2: Standard link, i.e. [[http://orgmode.org][homepage]]
2879 ((looking-at org-bracket-link-regexp)
2880 (setq contents-begin (match-beginning 3)
2881 contents-end (match-end 3)
2882 link-end (match-end 0)
2883 ;; RAW-LINK is the original link.
2884 raw-link (org-match-string-no-properties 1)
2885 link (org-translate-link
2886 (org-link-expand-abbrev
2887 (org-link-unescape raw-link))))
2888 ;; Determine TYPE of link and set PATH accordingly.
2889 (cond
2890 ;; File type.
2891 ((or (file-name-absolute-p link) (string-match "^\\.\\.?/" link))
2892 (setq type "file" path link))
2893 ;; Explicit type (http, irc, bbdb...). See `org-link-types'.
2894 ((string-match org-link-re-with-space3 link)
2895 (setq type (match-string 1 link) path (match-string 2 link)))
2896 ;; Id type: PATH is the id.
2897 ((string-match "^id:\\([-a-f0-9]+\\)" link)
2898 (setq type "id" path (match-string 1 link)))
2899 ;; Code-ref type: PATH is the name of the reference.
2900 ((string-match "^(\\(.*\\))$" link)
2901 (setq type "coderef" path (match-string 1 link)))
2902 ;; Custom-id type: PATH is the name of the custom id.
2903 ((= (aref link 0) ?#)
2904 (setq type "custom-id" path (substring link 1)))
2905 ;; Fuzzy type: Internal link either matches a target, an
2906 ;; headline name or nothing. PATH is the target or
2907 ;; headline's name.
2908 (t (setq type "fuzzy" path link))))
2909 ;; Type 3: Plain link, i.e. http://orgmode.org
2910 ((looking-at org-plain-link-re)
2911 (setq raw-link (org-match-string-no-properties 0)
2912 type (org-match-string-no-properties 1)
2913 path (org-match-string-no-properties 2)
2914 link-end (match-end 0)))
2915 ;; Type 4: Angular link, i.e. <http://orgmode.org>
2916 ((looking-at org-angle-link-re)
2917 (setq raw-link (buffer-substring-no-properties
2918 (match-beginning 1) (match-end 2))
2919 type (org-match-string-no-properties 1)
2920 path (org-match-string-no-properties 2)
2921 link-end (match-end 0))))
2922 ;; In any case, deduce end point after trailing white space from
2923 ;; LINK-END variable.
2924 (setq post-blank (progn (goto-char link-end) (skip-chars-forward " \t"))
2925 end (point))
2926 ;; Extract search option and opening application out of
2927 ;; "file"-type links.
2928 (when (member type org-element-link-type-is-file)
2929 ;; Application.
2930 (cond ((string-match "^file\\+\\(.*\\)$" type)
2931 (setq application (match-string 1 type)))
2932 ((not (string-match "^file" type))
2933 (setq application type)))
2934 ;; Extract search option from PATH.
2935 (when (string-match "::\\(.*\\)$" path)
2936 (setq search-option (match-string 1 path)
2937 path (replace-match "" nil nil path)))
2938 ;; Make sure TYPE always report "file".
2939 (setq type "file"))
2940 (list 'link
2941 (list :type type
2942 :path path
2943 :raw-link (or raw-link path)
2944 :application application
2945 :search-option search-option
2946 :begin begin
2947 :end end
2948 :contents-begin contents-begin
2949 :contents-end contents-end
2950 :post-blank post-blank)))))
2952 (defun org-element-link-interpreter (link contents)
2953 "Interpret LINK object as Org syntax.
2954 CONTENTS is the contents of the object, or nil."
2955 (let ((type (org-element-property :type link))
2956 (raw-link (org-element-property :raw-link link)))
2957 (if (string= type "radio") raw-link
2958 (format "[[%s]%s]"
2959 raw-link
2960 (if contents (format "[%s]" contents) "")))))
2962 (defun org-element-link-successor (limit)
2963 "Search for the next link object.
2965 LIMIT bounds the search.
2967 Return value is a cons cell whose CAR is `link' and CDR is
2968 beginning position."
2969 (save-excursion
2970 (let ((link-regexp
2971 (if (not org-target-link-regexp) org-any-link-re
2972 (concat org-any-link-re "\\|" org-target-link-regexp))))
2973 (when (re-search-forward link-regexp limit t)
2974 (cons 'link (match-beginning 0))))))
2977 ;;;; Macro
2979 (defun org-element-macro-parser ()
2980 "Parse macro at point.
2982 Return a list whose CAR is `macro' and CDR a plist with `:key',
2983 `:args', `:begin', `:end', `:value' and `:post-blank' as
2984 keywords.
2986 Assume point is at the macro."
2987 (save-excursion
2988 (looking-at "{{{\\([a-zA-Z][-a-zA-Z0-9_]*\\)\\(([ \t\n]*\\([^\000]*?\\))\\)?}}}")
2989 (let ((begin (point))
2990 (key (downcase (org-match-string-no-properties 1)))
2991 (value (org-match-string-no-properties 0))
2992 (post-blank (progn (goto-char (match-end 0))
2993 (skip-chars-forward " \t")))
2994 (end (point))
2995 (args (let ((args (org-match-string-no-properties 3)) args2)
2996 (when args
2997 (setq args (org-split-string args ","))
2998 (while args
2999 (while (string-match "\\\\\\'" (car args))
3000 ;; Repair bad splits.
3001 (setcar (cdr args) (concat (substring (car args) 0 -1)
3002 "," (nth 1 args)))
3003 (pop args))
3004 (push (pop args) args2))
3005 (mapcar 'org-trim (nreverse args2))))))
3006 (list 'macro
3007 (list :key key
3008 :value value
3009 :args args
3010 :begin begin
3011 :end end
3012 :post-blank post-blank)))))
3014 (defun org-element-macro-interpreter (macro contents)
3015 "Interpret MACRO object as Org syntax.
3016 CONTENTS is nil."
3017 (org-element-property :value macro))
3019 (defun org-element-macro-successor (limit)
3020 "Search for the next macro object.
3022 LIMIT bounds the search.
3024 Return value is cons cell whose CAR is `macro' and CDR is
3025 beginning position."
3026 (save-excursion
3027 (when (re-search-forward
3028 "{{{\\([a-zA-Z][-a-zA-Z0-9_]*\\)\\(([ \t\n]*\\([^\000]*?\\))\\)?}}}"
3029 limit t)
3030 (cons 'macro (match-beginning 0)))))
3033 ;;;; Radio-target
3035 (defun org-element-radio-target-parser ()
3036 "Parse radio target at point.
3038 Return a list whose CAR is `radio-target' and CDR a plist with
3039 `:begin', `:end', `:contents-begin', `:contents-end', `:value'
3040 and `:post-blank' as keywords.
3042 Assume point is at the radio target."
3043 (save-excursion
3044 (looking-at org-radio-target-regexp)
3045 (let ((begin (point))
3046 (contents-begin (match-beginning 1))
3047 (contents-end (match-end 1))
3048 (value (org-match-string-no-properties 1))
3049 (post-blank (progn (goto-char (match-end 0))
3050 (skip-chars-forward " \t")))
3051 (end (point)))
3052 (list 'radio-target
3053 (list :begin begin
3054 :end end
3055 :contents-begin contents-begin
3056 :contents-end contents-end
3057 :post-blank post-blank
3058 :value value)))))
3060 (defun org-element-radio-target-interpreter (target contents)
3061 "Interpret TARGET object as Org syntax.
3062 CONTENTS is the contents of the object."
3063 (concat "<<<" contents ">>>"))
3065 (defun org-element-radio-target-successor (limit)
3066 "Search for the next radio-target object.
3068 LIMIT bounds the search.
3070 Return value is a cons cell whose CAR is `radio-target' and CDR
3071 is beginning position."
3072 (save-excursion
3073 (when (re-search-forward org-radio-target-regexp limit t)
3074 (cons 'radio-target (match-beginning 0)))))
3077 ;;;; Statistics Cookie
3079 (defun org-element-statistics-cookie-parser ()
3080 "Parse statistics cookie at point.
3082 Return a list whose CAR is `statistics-cookie', and CDR a plist
3083 with `:begin', `:end', `:value' and `:post-blank' keywords.
3085 Assume point is at the beginning of the statistics-cookie."
3086 (save-excursion
3087 (looking-at "\\[[0-9]*\\(%\\|/[0-9]*\\)\\]")
3088 (let* ((begin (point))
3089 (value (buffer-substring-no-properties
3090 (match-beginning 0) (match-end 0)))
3091 (post-blank (progn (goto-char (match-end 0))
3092 (skip-chars-forward " \t")))
3093 (end (point)))
3094 (list 'statistics-cookie
3095 (list :begin begin
3096 :end end
3097 :value value
3098 :post-blank post-blank)))))
3100 (defun org-element-statistics-cookie-interpreter (statistics-cookie contents)
3101 "Interpret STATISTICS-COOKIE object as Org syntax.
3102 CONTENTS is nil."
3103 (org-element-property :value statistics-cookie))
3105 (defun org-element-statistics-cookie-successor (limit)
3106 "Search for the next statistics cookie object.
3108 LIMIT bounds the search.
3110 Return value is a cons cell whose CAR is `statistics-cookie' and
3111 CDR is beginning position."
3112 (save-excursion
3113 (when (re-search-forward "\\[[0-9]*\\(%\\|/[0-9]*\\)\\]" limit t)
3114 (cons 'statistics-cookie (match-beginning 0)))))
3117 ;;;; Strike-Through
3119 (defun org-element-strike-through-parser ()
3120 "Parse strike-through object at point.
3122 Return a list whose CAR is `strike-through' and CDR is a plist
3123 with `:begin', `:end', `:contents-begin' and `:contents-end' and
3124 `:post-blank' keywords.
3126 Assume point is at the first plus sign marker."
3127 (save-excursion
3128 (unless (bolp) (backward-char 1))
3129 (looking-at org-emph-re)
3130 (let ((begin (match-beginning 2))
3131 (contents-begin (match-beginning 4))
3132 (contents-end (match-end 4))
3133 (post-blank (progn (goto-char (match-end 2))
3134 (skip-chars-forward " \t")))
3135 (end (point)))
3136 (list 'strike-through
3137 (list :begin begin
3138 :end end
3139 :contents-begin contents-begin
3140 :contents-end contents-end
3141 :post-blank post-blank)))))
3143 (defun org-element-strike-through-interpreter (strike-through contents)
3144 "Interpret STRIKE-THROUGH object as Org syntax.
3145 CONTENTS is the contents of the object."
3146 (format "+%s+" contents))
3149 ;;;; Subscript
3151 (defun org-element-subscript-parser ()
3152 "Parse subscript at point.
3154 Return a list whose CAR is `subscript' and CDR a plist with
3155 `:begin', `:end', `:contents-begin', `:contents-end',
3156 `:use-brackets-p' and `:post-blank' as keywords.
3158 Assume point is at the underscore."
3159 (save-excursion
3160 (unless (bolp) (backward-char))
3161 (let ((bracketsp (if (looking-at org-match-substring-with-braces-regexp)
3163 (not (looking-at org-match-substring-regexp))))
3164 (begin (match-beginning 2))
3165 (contents-begin (or (match-beginning 5)
3166 (match-beginning 3)))
3167 (contents-end (or (match-end 5) (match-end 3)))
3168 (post-blank (progn (goto-char (match-end 0))
3169 (skip-chars-forward " \t")))
3170 (end (point)))
3171 (list 'subscript
3172 (list :begin begin
3173 :end end
3174 :use-brackets-p bracketsp
3175 :contents-begin contents-begin
3176 :contents-end contents-end
3177 :post-blank post-blank)))))
3179 (defun org-element-subscript-interpreter (subscript contents)
3180 "Interpret SUBSCRIPT object as Org syntax.
3181 CONTENTS is the contents of the object."
3182 (format
3183 (if (org-element-property :use-brackets-p subscript) "_{%s}" "_%s")
3184 contents))
3186 (defun org-element-sub/superscript-successor (limit)
3187 "Search for the next sub/superscript object.
3189 LIMIT bounds the search.
3191 Return value is a cons cell whose CAR is either `subscript' or
3192 `superscript' and CDR is beginning position."
3193 (save-excursion
3194 (unless (bolp) (backward-char))
3195 (when (re-search-forward org-match-substring-regexp limit t)
3196 (cons (if (string= (match-string 2) "_") 'subscript 'superscript)
3197 (match-beginning 2)))))
3200 ;;;; Superscript
3202 (defun org-element-superscript-parser ()
3203 "Parse superscript at point.
3205 Return a list whose CAR is `superscript' and CDR a plist with
3206 `:begin', `:end', `:contents-begin', `:contents-end',
3207 `:use-brackets-p' and `:post-blank' as keywords.
3209 Assume point is at the caret."
3210 (save-excursion
3211 (unless (bolp) (backward-char))
3212 (let ((bracketsp (if (looking-at org-match-substring-with-braces-regexp) t
3213 (not (looking-at org-match-substring-regexp))))
3214 (begin (match-beginning 2))
3215 (contents-begin (or (match-beginning 5)
3216 (match-beginning 3)))
3217 (contents-end (or (match-end 5) (match-end 3)))
3218 (post-blank (progn (goto-char (match-end 0))
3219 (skip-chars-forward " \t")))
3220 (end (point)))
3221 (list 'superscript
3222 (list :begin begin
3223 :end end
3224 :use-brackets-p bracketsp
3225 :contents-begin contents-begin
3226 :contents-end contents-end
3227 :post-blank post-blank)))))
3229 (defun org-element-superscript-interpreter (superscript contents)
3230 "Interpret SUPERSCRIPT object as Org syntax.
3231 CONTENTS is the contents of the object."
3232 (format
3233 (if (org-element-property :use-brackets-p superscript) "^{%s}" "^%s")
3234 contents))
3237 ;;;; Table Cell
3239 (defun org-element-table-cell-parser ()
3240 "Parse table cell at point.
3242 Return a list whose CAR is `table-cell' and CDR is a plist
3243 containing `:begin', `:end', `:contents-begin', `:contents-end'
3244 and `:post-blank' keywords."
3245 (looking-at "[ \t]*\\(.*?\\)[ \t]*|")
3246 (let* ((begin (match-beginning 0))
3247 (end (match-end 0))
3248 (contents-begin (match-beginning 1))
3249 (contents-end (match-end 1)))
3250 (list 'table-cell
3251 (list :begin begin
3252 :end end
3253 :contents-begin contents-begin
3254 :contents-end contents-end
3255 :post-blank 0))))
3257 (defun org-element-table-cell-interpreter (table-cell contents)
3258 "Interpret TABLE-CELL element as Org syntax.
3259 CONTENTS is the contents of the cell, or nil."
3260 (concat " " contents " |"))
3262 (defun org-element-table-cell-successor (limit)
3263 "Search for the next table-cell object.
3265 LIMIT bounds the search.
3267 Return value is a cons cell whose CAR is `table-cell' and CDR is
3268 beginning position."
3269 (when (looking-at "[ \t]*.*?[ \t]+|") (cons 'table-cell (point))))
3272 ;;;; Target
3274 (defun org-element-target-parser ()
3275 "Parse target at point.
3277 Return a list whose CAR is `target' and CDR a plist with
3278 `:begin', `:end', `:value' and `:post-blank' as keywords.
3280 Assume point is at the target."
3281 (save-excursion
3282 (looking-at org-target-regexp)
3283 (let ((begin (point))
3284 (value (org-match-string-no-properties 1))
3285 (post-blank (progn (goto-char (match-end 0))
3286 (skip-chars-forward " \t")))
3287 (end (point)))
3288 (list 'target
3289 (list :begin begin
3290 :end end
3291 :value value
3292 :post-blank post-blank)))))
3294 (defun org-element-target-interpreter (target contents)
3295 "Interpret TARGET object as Org syntax.
3296 CONTENTS is nil."
3297 (format "<<%s>>" (org-element-property :value target)))
3299 (defun org-element-target-successor (limit)
3300 "Search for the next target object.
3302 LIMIT bounds the search.
3304 Return value is a cons cell whose CAR is `target' and CDR is
3305 beginning position."
3306 (save-excursion
3307 (when (re-search-forward org-target-regexp limit t)
3308 (cons 'target (match-beginning 0)))))
3311 ;;;; Timestamp
3313 (defun org-element-timestamp-parser ()
3314 "Parse time stamp at point.
3316 Return a list whose CAR is `timestamp', and CDR a plist with
3317 `:type', `:begin', `:end', `:value' and `:post-blank' keywords.
3319 Assume point is at the beginning of the timestamp."
3320 (save-excursion
3321 (let* ((begin (point))
3322 (activep (eq (char-after) ?<))
3323 (main-value
3324 (progn
3325 (looking-at "[<[]\\(\\(%%\\)?.*?\\)[]>]\\(?:--[<[]\\(.*?\\)[]>]\\)?")
3326 (match-string-no-properties 1)))
3327 (range-end (match-string-no-properties 3))
3328 (type (cond ((match-string 2) 'diary)
3329 ((and activep range-end) 'active-range)
3330 (activep 'active)
3331 (range-end 'inactive-range)
3332 (t 'inactive)))
3333 (post-blank (progn (goto-char (match-end 0))
3334 (skip-chars-forward " \t")))
3335 (end (point)))
3336 (list 'timestamp
3337 (list :type type
3338 :value main-value
3339 :range-end range-end
3340 :begin begin
3341 :end end
3342 :post-blank post-blank)))))
3344 (defun org-element-timestamp-interpreter (timestamp contents)
3345 "Interpret TIMESTAMP object as Org syntax.
3346 CONTENTS is nil."
3347 (let ((type (org-element-property :type timestamp) ))
3348 (concat
3349 (format (if (memq type '(inactive inactive-range)) "[%s]" "<%s>")
3350 (org-element-property :value timestamp))
3351 (let ((range-end (org-element-property :range-end timestamp)))
3352 (when range-end
3353 (concat "--"
3354 (format (if (eq type 'inactive-range) "[%s]" "<%s>")
3355 range-end)))))))
3357 (defun org-element-timestamp-successor (limit)
3358 "Search for the next timestamp object.
3360 LIMIT bounds the search.
3362 Return value is a cons cell whose CAR is `timestamp' and CDR is
3363 beginning position."
3364 (save-excursion
3365 (when (re-search-forward
3366 (concat org-ts-regexp-both
3367 "\\|"
3368 "\\(?:<[0-9]+-[0-9]+-[0-9]+[^>\n]+?\\+[0-9]+[dwmy]>\\)"
3369 "\\|"
3370 "\\(?:<%%\\(?:([^>\n]+)\\)>\\)")
3371 limit t)
3372 (cons 'timestamp (match-beginning 0)))))
3375 ;;;; Underline
3377 (defun org-element-underline-parser ()
3378 "Parse underline object at point.
3380 Return a list whose CAR is `underline' and CDR is a plist with
3381 `:begin', `:end', `:contents-begin' and `:contents-end' and
3382 `:post-blank' keywords.
3384 Assume point is at the first underscore marker."
3385 (save-excursion
3386 (unless (bolp) (backward-char 1))
3387 (looking-at org-emph-re)
3388 (let ((begin (match-beginning 2))
3389 (contents-begin (match-beginning 4))
3390 (contents-end (match-end 4))
3391 (post-blank (progn (goto-char (match-end 2))
3392 (skip-chars-forward " \t")))
3393 (end (point)))
3394 (list 'underline
3395 (list :begin begin
3396 :end end
3397 :contents-begin contents-begin
3398 :contents-end contents-end
3399 :post-blank post-blank)))))
3401 (defun org-element-underline-interpreter (underline contents)
3402 "Interpret UNDERLINE object as Org syntax.
3403 CONTENTS is the contents of the object."
3404 (format "_%s_" contents))
3407 ;;;; Verbatim
3409 (defun org-element-verbatim-parser ()
3410 "Parse verbatim object at point.
3412 Return a list whose CAR is `verbatim' and CDR is a plist with
3413 `:value', `:begin', `:end' and `:post-blank' keywords.
3415 Assume point is at the first equal sign marker."
3416 (save-excursion
3417 (unless (bolp) (backward-char 1))
3418 (looking-at org-emph-re)
3419 (let ((begin (match-beginning 2))
3420 (value (org-match-string-no-properties 4))
3421 (post-blank (progn (goto-char (match-end 2))
3422 (skip-chars-forward " \t")))
3423 (end (point)))
3424 (list 'verbatim
3425 (list :value value
3426 :begin begin
3427 :end end
3428 :post-blank post-blank)))))
3430 (defun org-element-verbatim-interpreter (verbatim contents)
3431 "Interpret VERBATIM object as Org syntax.
3432 CONTENTS is nil."
3433 (format "=%s=" (org-element-property :value verbatim)))
3437 ;;; Parsing Element Starting At Point
3439 ;; `org-element--current-element' is the core function of this section.
3440 ;; It returns the Lisp representation of the element starting at
3441 ;; point.
3443 ;; `org-element--current-element' makes use of special modes. They
3444 ;; are activated for fixed element chaining (i.e. `plain-list' >
3445 ;; `item') or fixed conditional element chaining (i.e. `headline' >
3446 ;; `section'). Special modes are: `first-section', `item',
3447 ;; `node-property', `quote-section', `section' and `table-row'.
3449 (defun org-element--current-element
3450 (limit &optional granularity special structure)
3451 "Parse the element starting at point.
3453 LIMIT bounds the search.
3455 Return value is a list like (TYPE PROPS) where TYPE is the type
3456 of the element and PROPS a plist of properties associated to the
3457 element.
3459 Possible types are defined in `org-element-all-elements'.
3461 Optional argument GRANULARITY determines the depth of the
3462 recursion. Allowed values are `headline', `greater-element',
3463 `element', `object' or nil. When it is broader than `object' (or
3464 nil), secondary values will not be parsed, since they only
3465 contain objects.
3467 Optional argument SPECIAL, when non-nil, can be either
3468 `first-section', `item', `node-property', `quote-section',
3469 `section', and `table-row'.
3471 If STRUCTURE isn't provided but SPECIAL is set to `item', it will
3472 be computed.
3474 This function assumes point is always at the beginning of the
3475 element it has to parse."
3476 (save-excursion
3477 (let ((case-fold-search t)
3478 ;; Determine if parsing depth allows for secondary strings
3479 ;; parsing. It only applies to elements referenced in
3480 ;; `org-element-secondary-value-alist'.
3481 (raw-secondary-p (and granularity (not (eq granularity 'object)))))
3482 (cond
3483 ;; Item.
3484 ((eq special 'item)
3485 (org-element-item-parser limit structure raw-secondary-p))
3486 ;; Table Row.
3487 ((eq special 'table-row) (org-element-table-row-parser limit))
3488 ;; Node Property.
3489 ((eq special 'node-property) (org-element-node-property-parser limit))
3490 ;; Headline.
3491 ((org-with-limited-levels (org-at-heading-p))
3492 (org-element-headline-parser limit raw-secondary-p))
3493 ;; Sections (must be checked after headline).
3494 ((eq special 'section) (org-element-section-parser limit))
3495 ((eq special 'quote-section) (org-element-quote-section-parser limit))
3496 ((eq special 'first-section)
3497 (org-element-section-parser
3498 (or (save-excursion (org-with-limited-levels (outline-next-heading)))
3499 limit)))
3500 ;; When not at bol, point is at the beginning of an item or
3501 ;; a footnote definition: next item is always a paragraph.
3502 ((not (bolp)) (org-element-paragraph-parser limit (list (point))))
3503 ;; Planning and Clock.
3504 ((and (looking-at org-planning-or-clock-line-re))
3505 (if (equal (match-string 1) org-clock-string)
3506 (org-element-clock-parser limit)
3507 (org-element-planning-parser limit)))
3508 ;; Inlinetask.
3509 ((org-at-heading-p)
3510 (org-element-inlinetask-parser limit raw-secondary-p))
3511 ;; From there, elements can have affiliated keywords.
3512 (t (let ((affiliated (org-element--collect-affiliated-keywords)))
3513 (cond
3514 ;; LaTeX Environment.
3515 ((looking-at "[ \t]*\\\\begin{\\([A-Za-z0-9*]+\\)}[ \t]*$")
3516 (org-element-latex-environment-parser limit affiliated))
3517 ;; Drawer and Property Drawer.
3518 ((looking-at org-drawer-regexp)
3519 (if (equal (match-string 1) "PROPERTIES")
3520 (org-element-property-drawer-parser limit affiliated)
3521 (org-element-drawer-parser limit affiliated)))
3522 ;; Fixed Width
3523 ((looking-at "[ \t]*:\\( \\|$\\)")
3524 (org-element-fixed-width-parser limit affiliated))
3525 ;; Inline Comments, Blocks, Babel Calls, Dynamic Blocks and
3526 ;; Keywords.
3527 ((looking-at "[ \t]*#")
3528 (goto-char (match-end 0))
3529 (cond ((looking-at "\\(?: \\|$\\)")
3530 (beginning-of-line)
3531 (org-element-comment-parser limit affiliated))
3532 ((looking-at "\\+BEGIN_\\(\\S-+\\)")
3533 (beginning-of-line)
3534 (let ((parser (assoc (upcase (match-string 1))
3535 org-element-block-name-alist)))
3536 (if parser (funcall (cdr parser) limit affiliated)
3537 (org-element-special-block-parser limit affiliated))))
3538 ((looking-at "\\+CALL:")
3539 (beginning-of-line)
3540 (org-element-babel-call-parser limit affiliated))
3541 ((looking-at "\\+BEGIN:? ")
3542 (beginning-of-line)
3543 (org-element-dynamic-block-parser limit affiliated))
3544 ((looking-at "\\+\\S-+:")
3545 (beginning-of-line)
3546 (org-element-keyword-parser limit affiliated))
3548 (beginning-of-line)
3549 (org-element-paragraph-parser limit affiliated))))
3550 ;; Footnote Definition.
3551 ((looking-at org-footnote-definition-re)
3552 (org-element-footnote-definition-parser limit affiliated))
3553 ;; Horizontal Rule.
3554 ((looking-at "[ \t]*-\\{5,\\}[ \t]*$")
3555 (org-element-horizontal-rule-parser limit affiliated))
3556 ;; Table.
3557 ((org-at-table-p t) (org-element-table-parser limit affiliated))
3558 ;; List.
3559 ((looking-at (org-item-re))
3560 (org-element-plain-list-parser
3561 limit affiliated (or structure (org-list-struct))))
3562 ;; Default element: Paragraph.
3563 (t (org-element-paragraph-parser limit affiliated)))))))))
3566 ;; Most elements can have affiliated keywords. When looking for an
3567 ;; element beginning, we want to move before them, as they belong to
3568 ;; that element, and, in the meantime, collect information they give
3569 ;; into appropriate properties. Hence the following function.
3571 (defun org-element--collect-affiliated-keywords ()
3572 "Collect affiliated keywords from point.
3574 Return a list whose CAR is the position at the first of them and
3575 CDR a plist of keywords and values and move point to the
3576 beginning of the first line after them.
3578 As a special case, if element doesn't start at the beginning of
3579 the line (i.e. a paragraph starting an item), CAR is current
3580 position of point and CDR is nil."
3581 (if (not (bolp)) (list (point))
3582 (let ((case-fold-search t)
3583 (origin (point))
3584 ;; RESTRICT is the list of objects allowed in parsed
3585 ;; keywords value.
3586 (restrict (org-element-restriction 'keyword))
3587 output)
3588 (while (and (not (eobp)) (looking-at org-element--affiliated-re))
3589 (let* ((raw-kwd (upcase (match-string 1)))
3590 ;; Apply translation to RAW-KWD. From there, KWD is
3591 ;; the official keyword.
3592 (kwd (or (cdr (assoc raw-kwd
3593 org-element-keyword-translation-alist))
3594 raw-kwd))
3595 ;; Find main value for any keyword.
3596 (value
3597 (save-match-data
3598 (org-trim
3599 (buffer-substring-no-properties
3600 (match-end 0) (point-at-eol)))))
3601 ;; PARSEDP is non-nil when keyword should have its
3602 ;; value parsed.
3603 (parsedp (member kwd org-element-parsed-keywords))
3604 ;; If KWD is a dual keyword, find its secondary
3605 ;; value. Maybe parse it.
3606 (dualp (member kwd org-element-dual-keywords))
3607 (dual-value
3608 (and dualp
3609 (let ((sec (org-match-string-no-properties 2)))
3610 (if (or (not sec) (not parsedp)) sec
3611 (org-element-parse-secondary-string sec restrict)))))
3612 ;; Attribute a property name to KWD.
3613 (kwd-sym (and kwd (intern (concat ":" (downcase kwd))))))
3614 ;; Now set final shape for VALUE.
3615 (when parsedp
3616 (setq value (org-element-parse-secondary-string value restrict)))
3617 (when dualp (setq value (and value (cons value dual-value))))
3618 (when (or (member kwd org-element-multiple-keywords)
3619 ;; Attributes can always appear on multiple lines.
3620 (string-match "^ATTR_" kwd))
3621 (setq value (cons value (plist-get output kwd-sym))))
3622 ;; Eventually store the new value in OUTPUT.
3623 (setq output (plist-put output kwd-sym value))
3624 ;; Move to next keyword.
3625 (forward-line)))
3626 ;; If affiliated keywords are orphaned: move back to first one.
3627 ;; They will be parsed as a paragraph.
3628 (when (looking-at "[ \t]*$") (goto-char origin) (setq output nil))
3629 ;; Return value.
3630 (cons origin output))))
3634 ;;; The Org Parser
3636 ;; The two major functions here are `org-element-parse-buffer', which
3637 ;; parses Org syntax inside the current buffer, taking into account
3638 ;; region, narrowing, or even visibility if specified, and
3639 ;; `org-element-parse-secondary-string', which parses objects within
3640 ;; a given string.
3642 ;; The (almost) almighty `org-element-map' allows to apply a function
3643 ;; on elements or objects matching some type, and accumulate the
3644 ;; resulting values. In an export situation, it also skips unneeded
3645 ;; parts of the parse tree.
3647 (defun org-element-parse-buffer (&optional granularity visible-only)
3648 "Recursively parse the buffer and return structure.
3649 If narrowing is in effect, only parse the visible part of the
3650 buffer.
3652 Optional argument GRANULARITY determines the depth of the
3653 recursion. It can be set to the following symbols:
3655 `headline' Only parse headlines.
3656 `greater-element' Don't recurse into greater elements excepted
3657 headlines and sections. Thus, elements
3658 parsed are the top-level ones.
3659 `element' Parse everything but objects and plain text.
3660 `object' Parse the complete buffer (default).
3662 When VISIBLE-ONLY is non-nil, don't parse contents of hidden
3663 elements.
3665 Assume buffer is in Org mode."
3666 (save-excursion
3667 (goto-char (point-min))
3668 (org-skip-whitespace)
3669 (org-element--parse-elements
3670 (point-at-bol) (point-max)
3671 ;; Start in `first-section' mode so text before the first
3672 ;; headline belongs to a section.
3673 'first-section nil granularity visible-only (list 'org-data nil))))
3675 (defun org-element-parse-secondary-string (string restriction &optional parent)
3676 "Recursively parse objects in STRING and return structure.
3678 RESTRICTION is a symbol limiting the object types that will be
3679 looked after.
3681 Optional argument PARENT, when non-nil, is the element or object
3682 containing the secondary string. It is used to set correctly
3683 `:parent' property within the string."
3684 (with-temp-buffer
3685 (insert string)
3686 (let ((secondary (org-element--parse-objects
3687 (point-min) (point-max) nil restriction)))
3688 (mapc (lambda (obj) (org-element-put-property obj :parent parent))
3689 secondary))))
3691 (defun org-element-map
3692 (data types fun &optional info first-match no-recursion with-affiliated)
3693 "Map a function on selected elements or objects.
3695 DATA is the parsed tree, as returned by, i.e,
3696 `org-element-parse-buffer'. TYPES is a symbol or list of symbols
3697 of elements or objects types. FUN is the function called on the
3698 matching element or object. It must accept one arguments: the
3699 element or object itself.
3701 When optional argument INFO is non-nil, it should be a plist
3702 holding export options. In that case, parts of the parse tree
3703 not exportable according to that property list will be skipped.
3705 When optional argument FIRST-MATCH is non-nil, stop at the first
3706 match for which FUN doesn't return nil, and return that value.
3708 Optional argument NO-RECURSION is a symbol or a list of symbols
3709 representing elements or objects types. `org-element-map' won't
3710 enter any recursive element or object whose type belongs to that
3711 list. Though, FUN can still be applied on them.
3713 When optional argument WITH-AFFILIATED is non-nil, also move into
3714 affiliated keywords to find objects.
3716 Nil values returned from FUN do not appear in the results."
3717 ;; Ensure TYPES and NO-RECURSION are a list, even of one element.
3718 (unless (listp types) (setq types (list types)))
3719 (unless (listp no-recursion) (setq no-recursion (list no-recursion)))
3720 ;; Recursion depth is determined by --CATEGORY.
3721 (let* ((--category
3722 (catch 'found
3723 (let ((category 'greater-elements))
3724 (mapc (lambda (type)
3725 (cond ((or (memq type org-element-all-objects)
3726 (eq type 'plain-text))
3727 ;; If one object is found, the function
3728 ;; has to recurse into every object.
3729 (throw 'found 'objects))
3730 ((not (memq type org-element-greater-elements))
3731 ;; If one regular element is found, the
3732 ;; function has to recurse, at least,
3733 ;; into every element it encounters.
3734 (and (not (eq category 'elements))
3735 (setq category 'elements)))))
3736 types)
3737 category)))
3738 ;; Compute properties for affiliated keywords if necessary.
3739 (--affiliated-alist
3740 (and with-affiliated
3741 (mapcar (lambda (kwd)
3742 (cons kwd (intern (concat ":" (downcase kwd)))))
3743 org-element-affiliated-keywords)))
3744 --acc
3745 --walk-tree
3746 (--walk-tree
3747 (function
3748 (lambda (--data)
3749 ;; Recursively walk DATA. INFO, if non-nil, is a plist
3750 ;; holding contextual information.
3751 (let ((--type (org-element-type --data)))
3752 (cond
3753 ((not --data))
3754 ;; Ignored element in an export context.
3755 ((and info (memq --data (plist-get info :ignore-list))))
3756 ;; Secondary string: only objects can be found there.
3757 ((not --type)
3758 (when (eq --category 'objects) (mapc --walk-tree --data)))
3759 ;; Unconditionally enter parse trees.
3760 ((eq --type 'org-data)
3761 (mapc --walk-tree (org-element-contents --data)))
3763 ;; Check if TYPE is matching among TYPES. If so,
3764 ;; apply FUN to --DATA and accumulate return value
3765 ;; into --ACC (or exit if FIRST-MATCH is non-nil).
3766 (when (memq --type types)
3767 (let ((result (funcall fun --data)))
3768 (cond ((not result))
3769 (first-match (throw '--map-first-match result))
3770 (t (push result --acc)))))
3771 ;; If --DATA has a secondary string that can contain
3772 ;; objects with their type among TYPES, look into it.
3773 (when (and (eq --category 'objects) (not (stringp --data)))
3774 (let ((sec-prop
3775 (assq --type org-element-secondary-value-alist)))
3776 (when sec-prop
3777 (funcall --walk-tree
3778 (org-element-property (cdr sec-prop) --data)))))
3779 ;; If --DATA has any affiliated keywords and
3780 ;; WITH-AFFILIATED is non-nil, look for objects in
3781 ;; them.
3782 (when (and with-affiliated
3783 (eq --category 'objects)
3784 (memq --type org-element-all-elements))
3785 (mapc (lambda (kwd-pair)
3786 (let ((kwd (car kwd-pair))
3787 (value (org-element-property
3788 (cdr kwd-pair) --data)))
3789 ;; Pay attention to the type of value.
3790 ;; Preserve order for multiple keywords.
3791 (cond
3792 ((not value))
3793 ((and (member kwd org-element-multiple-keywords)
3794 (member kwd org-element-dual-keywords))
3795 (mapc (lambda (line)
3796 (funcall --walk-tree (cdr line))
3797 (funcall --walk-tree (car line)))
3798 (reverse value)))
3799 ((member kwd org-element-multiple-keywords)
3800 (mapc (lambda (line) (funcall --walk-tree line))
3801 (reverse value)))
3802 ((member kwd org-element-dual-keywords)
3803 (funcall --walk-tree (cdr value))
3804 (funcall --walk-tree (car value)))
3805 (t (funcall --walk-tree value)))))
3806 --affiliated-alist))
3807 ;; Determine if a recursion into --DATA is possible.
3808 (cond
3809 ;; --TYPE is explicitly removed from recursion.
3810 ((memq --type no-recursion))
3811 ;; --DATA has no contents.
3812 ((not (org-element-contents --data)))
3813 ;; Looking for greater elements but --DATA is simply
3814 ;; an element or an object.
3815 ((and (eq --category 'greater-elements)
3816 (not (memq --type org-element-greater-elements))))
3817 ;; Looking for elements but --DATA is an object.
3818 ((and (eq --category 'elements)
3819 (memq --type org-element-all-objects)))
3820 ;; In any other case, map contents.
3821 (t (mapc --walk-tree (org-element-contents --data)))))))))))
3822 (catch '--map-first-match
3823 (funcall --walk-tree data)
3824 ;; Return value in a proper order.
3825 (nreverse --acc))))
3827 ;; The following functions are internal parts of the parser.
3829 ;; The first one, `org-element--parse-elements' acts at the element's
3830 ;; level.
3832 ;; The second one, `org-element--parse-objects' applies on all objects
3833 ;; of a paragraph or a secondary string. It uses
3834 ;; `org-element--get-next-object-candidates' to optimize the search of
3835 ;; the next object in the buffer.
3837 ;; More precisely, that function looks for every allowed object type
3838 ;; first. Then, it discards failed searches, keeps further matches,
3839 ;; and searches again types matched behind point, for subsequent
3840 ;; calls. Thus, searching for a given type fails only once, and every
3841 ;; object is searched only once at top level (but sometimes more for
3842 ;; nested types).
3844 (defun org-element--parse-elements
3845 (beg end special structure granularity visible-only acc)
3846 "Parse elements between BEG and END positions.
3848 SPECIAL prioritize some elements over the others. It can be set
3849 to `first-section', `quote-section', `section' `item' or
3850 `table-row'.
3852 When value is `item', STRUCTURE will be used as the current list
3853 structure.
3855 GRANULARITY determines the depth of the recursion. See
3856 `org-element-parse-buffer' for more information.
3858 When VISIBLE-ONLY is non-nil, don't parse contents of hidden
3859 elements.
3861 Elements are accumulated into ACC."
3862 (save-excursion
3863 (goto-char beg)
3864 ;; When parsing only headlines, skip any text before first one.
3865 (when (and (eq granularity 'headline) (not (org-at-heading-p)))
3866 (org-with-limited-levels (outline-next-heading)))
3867 ;; Main loop start.
3868 (while (< (point) end)
3869 ;; Find current element's type and parse it accordingly to
3870 ;; its category.
3871 (let* ((element (org-element--current-element
3872 end granularity special structure))
3873 (type (org-element-type element))
3874 (cbeg (org-element-property :contents-begin element)))
3875 (goto-char (org-element-property :end element))
3876 ;; Fill ELEMENT contents by side-effect.
3877 (cond
3878 ;; If VISIBLE-ONLY is true and element is hidden or if it has
3879 ;; no contents, don't modify it.
3880 ((or (and visible-only (org-element-property :hiddenp element))
3881 (not cbeg)))
3882 ;; Greater element: parse it between `contents-begin' and
3883 ;; `contents-end'. Make sure GRANULARITY allows the
3884 ;; recursion, or ELEMENT is an headline, in which case going
3885 ;; inside is mandatory, in order to get sub-level headings.
3886 ((and (memq type org-element-greater-elements)
3887 (or (memq granularity '(element object nil))
3888 (and (eq granularity 'greater-element)
3889 (eq type 'section))
3890 (eq type 'headline)))
3891 (org-element--parse-elements
3892 cbeg (org-element-property :contents-end element)
3893 ;; Possibly switch to a special mode.
3894 (case type
3895 (headline
3896 (if (org-element-property :quotedp element) 'quote-section
3897 'section))
3898 (plain-list 'item)
3899 (property-drawer 'node-property)
3900 (table 'table-row))
3901 (org-element-property :structure element)
3902 granularity visible-only element))
3903 ;; ELEMENT has contents. Parse objects inside, if
3904 ;; GRANULARITY allows it.
3905 ((memq granularity '(object nil))
3906 (org-element--parse-objects
3907 cbeg (org-element-property :contents-end element) element
3908 (org-element-restriction type))))
3909 (org-element-adopt-elements acc element)))
3910 ;; Return result.
3911 acc))
3913 (defun org-element--parse-objects (beg end acc restriction)
3914 "Parse objects between BEG and END and return recursive structure.
3916 Objects are accumulated in ACC.
3918 RESTRICTION is a list of object types which are allowed in the
3919 current object."
3920 (let (candidates)
3921 (save-excursion
3922 (goto-char beg)
3923 (while (and (< (point) end)
3924 (setq candidates (org-element--get-next-object-candidates
3925 end restriction candidates)))
3926 (let ((next-object
3927 (let ((pos (apply 'min (mapcar 'cdr candidates))))
3928 (save-excursion
3929 (goto-char pos)
3930 (funcall (intern (format "org-element-%s-parser"
3931 (car (rassq pos candidates)))))))))
3932 ;; 1. Text before any object. Untabify it.
3933 (let ((obj-beg (org-element-property :begin next-object)))
3934 (unless (= (point) obj-beg)
3935 (setq acc
3936 (org-element-adopt-elements
3938 (replace-regexp-in-string
3939 "\t" (make-string tab-width ? )
3940 (buffer-substring-no-properties (point) obj-beg))))))
3941 ;; 2. Object...
3942 (let ((obj-end (org-element-property :end next-object))
3943 (cont-beg (org-element-property :contents-begin next-object)))
3944 ;; Fill contents of NEXT-OBJECT by side-effect, if it has
3945 ;; a recursive type.
3946 (when (and cont-beg
3947 (memq (car next-object) org-element-recursive-objects))
3948 (save-restriction
3949 (narrow-to-region
3950 cont-beg
3951 (org-element-property :contents-end next-object))
3952 (org-element--parse-objects
3953 (point-min) (point-max) next-object
3954 (org-element-restriction next-object))))
3955 (setq acc (org-element-adopt-elements acc next-object))
3956 (goto-char obj-end))))
3957 ;; 3. Text after last object. Untabify it.
3958 (unless (= (point) end)
3959 (setq acc
3960 (org-element-adopt-elements
3962 (replace-regexp-in-string
3963 "\t" (make-string tab-width ? )
3964 (buffer-substring-no-properties (point) end)))))
3965 ;; Result.
3966 acc)))
3968 (defun org-element--get-next-object-candidates (limit restriction objects)
3969 "Return an alist of candidates for the next object.
3971 LIMIT bounds the search, and RESTRICTION narrows candidates to
3972 some object types.
3974 Return value is an alist whose CAR is position and CDR the object
3975 type, as a symbol.
3977 OBJECTS is the previous candidates alist."
3978 ;; Filter out any object found but not belonging to RESTRICTION.
3979 (setq objects
3980 (org-remove-if-not
3981 (lambda (obj)
3982 (let ((type (car obj)))
3983 (memq (or (cdr (assq type org-element-object-successor-alist))
3984 type)
3985 restriction)))
3986 objects))
3987 (let (next-candidates types-to-search)
3988 ;; If no previous result, search every object type in RESTRICTION.
3989 ;; Otherwise, keep potential candidates (old objects located after
3990 ;; point) and ask to search again those which had matched before.
3991 (if (not objects) (setq types-to-search restriction)
3992 (mapc (lambda (obj)
3993 (if (< (cdr obj) (point)) (push (car obj) types-to-search)
3994 (push obj next-candidates)))
3995 objects))
3996 ;; Call the appropriate successor function for each type to search
3997 ;; and accumulate matches.
3998 (mapc
3999 (lambda (type)
4000 (let* ((successor-fun
4001 (intern
4002 (format "org-element-%s-successor"
4003 (or (cdr (assq type org-element-object-successor-alist))
4004 type))))
4005 (obj (funcall successor-fun limit)))
4006 (and obj (push obj next-candidates))))
4007 types-to-search)
4008 ;; Return alist.
4009 next-candidates))
4013 ;;; Towards A Bijective Process
4015 ;; The parse tree obtained with `org-element-parse-buffer' is really
4016 ;; a snapshot of the corresponding Org buffer. Therefore, it can be
4017 ;; interpreted and expanded into a string with canonical Org syntax.
4018 ;; Hence `org-element-interpret-data'.
4020 ;; The function relies internally on
4021 ;; `org-element--interpret-affiliated-keywords'.
4023 ;;;###autoload
4024 (defun org-element-interpret-data (data &optional parent)
4025 "Interpret DATA as Org syntax.
4027 DATA is a parse tree, an element, an object or a secondary string
4028 to interpret.
4030 Optional argument PARENT is used for recursive calls. It contains
4031 the element or object containing data, or nil.
4033 Return Org syntax as a string."
4034 (let* ((type (org-element-type data))
4035 (results
4036 (cond
4037 ;; Secondary string.
4038 ((not type)
4039 (mapconcat
4040 (lambda (obj) (org-element-interpret-data obj parent))
4041 data ""))
4042 ;; Full Org document.
4043 ((eq type 'org-data)
4044 (mapconcat
4045 (lambda (obj) (org-element-interpret-data obj parent))
4046 (org-element-contents data) ""))
4047 ;; Plain text.
4048 ((stringp data) data)
4049 ;; Element/Object without contents.
4050 ((not (org-element-contents data))
4051 (funcall (intern (format "org-element-%s-interpreter" type))
4052 data nil))
4053 ;; Element/Object with contents.
4055 (let* ((greaterp (memq type org-element-greater-elements))
4056 (objectp (and (not greaterp)
4057 (memq type org-element-recursive-objects)))
4058 (contents
4059 (mapconcat
4060 (lambda (obj) (org-element-interpret-data obj data))
4061 (org-element-contents
4062 (if (or greaterp objectp) data
4063 ;; Elements directly containing objects must
4064 ;; have their indentation normalized first.
4065 (org-element-normalize-contents
4066 data
4067 ;; When normalizing first paragraph of an
4068 ;; item or a footnote-definition, ignore
4069 ;; first line's indentation.
4070 (and (eq type 'paragraph)
4071 (equal data (car (org-element-contents parent)))
4072 (memq (org-element-type parent)
4073 '(footnote-definition item))))))
4074 "")))
4075 (funcall (intern (format "org-element-%s-interpreter" type))
4076 data
4077 (if greaterp (org-element-normalize-contents contents)
4078 contents)))))))
4079 (if (memq type '(org-data plain-text nil)) results
4080 ;; Build white spaces. If no `:post-blank' property is
4081 ;; specified, assume its value is 0.
4082 (let ((post-blank (or (org-element-property :post-blank data) 0)))
4083 (if (memq type org-element-all-objects)
4084 (concat results (make-string post-blank 32))
4085 (concat
4086 (org-element--interpret-affiliated-keywords data)
4087 (org-element-normalize-string results)
4088 (make-string post-blank 10)))))))
4090 (defun org-element--interpret-affiliated-keywords (element)
4091 "Return ELEMENT's affiliated keywords as Org syntax.
4092 If there is no affiliated keyword, return the empty string."
4093 (let ((keyword-to-org
4094 (function
4095 (lambda (key value)
4096 (let (dual)
4097 (when (member key org-element-dual-keywords)
4098 (setq dual (cdr value) value (car value)))
4099 (concat "#+" key
4100 (and dual
4101 (format "[%s]" (org-element-interpret-data dual)))
4102 ": "
4103 (if (member key org-element-parsed-keywords)
4104 (org-element-interpret-data value)
4105 value)
4106 "\n"))))))
4107 (mapconcat
4108 (lambda (prop)
4109 (let ((value (org-element-property prop element))
4110 (keyword (upcase (substring (symbol-name prop) 1))))
4111 (when value
4112 (if (or (member keyword org-element-multiple-keywords)
4113 ;; All attribute keywords can have multiple lines.
4114 (string-match "^ATTR_" keyword))
4115 (mapconcat (lambda (line) (funcall keyword-to-org keyword line))
4116 (reverse value)
4118 (funcall keyword-to-org keyword value)))))
4119 ;; List all ELEMENT's properties matching an attribute line or an
4120 ;; affiliated keyword, but ignore translated keywords since they
4121 ;; cannot belong to the property list.
4122 (loop for prop in (nth 1 element) by 'cddr
4123 when (let ((keyword (upcase (substring (symbol-name prop) 1))))
4124 (or (string-match "^ATTR_" keyword)
4125 (and
4126 (member keyword org-element-affiliated-keywords)
4127 (not (assoc keyword
4128 org-element-keyword-translation-alist)))))
4129 collect prop)
4130 "")))
4132 ;; Because interpretation of the parse tree must return the same
4133 ;; number of blank lines between elements and the same number of white
4134 ;; space after objects, some special care must be given to white
4135 ;; spaces.
4137 ;; The first function, `org-element-normalize-string', ensures any
4138 ;; string different from the empty string will end with a single
4139 ;; newline character.
4141 ;; The second function, `org-element-normalize-contents', removes
4142 ;; global indentation from the contents of the current element.
4144 (defun org-element-normalize-string (s)
4145 "Ensure string S ends with a single newline character.
4147 If S isn't a string return it unchanged. If S is the empty
4148 string, return it. Otherwise, return a new string with a single
4149 newline character at its end."
4150 (cond
4151 ((not (stringp s)) s)
4152 ((string= "" s) "")
4153 (t (and (string-match "\\(\n[ \t]*\\)*\\'" s)
4154 (replace-match "\n" nil nil s)))))
4156 (defun org-element-normalize-contents (element &optional ignore-first)
4157 "Normalize plain text in ELEMENT's contents.
4159 ELEMENT must only contain plain text and objects.
4161 If optional argument IGNORE-FIRST is non-nil, ignore first line's
4162 indentation to compute maximal common indentation.
4164 Return the normalized element that is element with global
4165 indentation removed from its contents. The function assumes that
4166 indentation is not done with TAB characters."
4167 (let* (ind-list ; for byte-compiler
4168 collect-inds ; for byte-compiler
4169 (collect-inds
4170 (function
4171 ;; Return list of indentations within BLOB. This is done by
4172 ;; walking recursively BLOB and updating IND-LIST along the
4173 ;; way. FIRST-FLAG is non-nil when the first string hasn't
4174 ;; been seen yet. It is required as this string is the only
4175 ;; one whose indentation doesn't happen after a newline
4176 ;; character.
4177 (lambda (blob first-flag)
4178 (mapc
4179 (lambda (object)
4180 (when (and first-flag (stringp object))
4181 (setq first-flag nil)
4182 (string-match "\\`\\( *\\)" object)
4183 (let ((len (length (match-string 1 object))))
4184 ;; An indentation of zero means no string will be
4185 ;; modified. Quit the process.
4186 (if (zerop len) (throw 'zero (setq ind-list nil))
4187 (push len ind-list))))
4188 (cond
4189 ((stringp object)
4190 (let ((start 0))
4191 ;; Avoid matching blank or empty lines.
4192 (while (and (string-match "\n\\( *\\)\\(.\\)" object start)
4193 (not (equal (match-string 2 object) " ")))
4194 (setq start (match-end 0))
4195 (push (length (match-string 1 object)) ind-list))))
4196 ((memq (org-element-type object) org-element-recursive-objects)
4197 (funcall collect-inds object first-flag))))
4198 (org-element-contents blob))))))
4199 ;; Collect indentation list in ELEMENT. Possibly remove first
4200 ;; value if IGNORE-FIRST is non-nil.
4201 (catch 'zero (funcall collect-inds element (not ignore-first)))
4202 (if (not ind-list) element
4203 ;; Build ELEMENT back, replacing each string with the same
4204 ;; string minus common indentation.
4205 (let* (build ; For byte compiler.
4206 (build
4207 (function
4208 (lambda (blob mci first-flag)
4209 ;; Return BLOB with all its strings indentation
4210 ;; shortened from MCI white spaces. FIRST-FLAG is
4211 ;; non-nil when the first string hasn't been seen
4212 ;; yet.
4213 (setcdr (cdr blob)
4214 (mapcar
4215 (lambda (object)
4216 (when (and first-flag (stringp object))
4217 (setq first-flag nil)
4218 (setq object
4219 (replace-regexp-in-string
4220 (format "\\` \\{%d\\}" mci) "" object)))
4221 (cond
4222 ((stringp object)
4223 (replace-regexp-in-string
4224 (format "\n \\{%d\\}" mci) "\n" object))
4225 ((memq (org-element-type object)
4226 org-element-recursive-objects)
4227 (funcall build object mci first-flag))
4228 (t object)))
4229 (org-element-contents blob)))
4230 blob))))
4231 (funcall build element (apply 'min ind-list) (not ignore-first))))))
4235 ;;; The Toolbox
4237 ;; The first move is to implement a way to obtain the smallest element
4238 ;; containing point. This is the job of `org-element-at-point'. It
4239 ;; basically jumps back to the beginning of section containing point
4240 ;; and moves, element after element, with
4241 ;; `org-element--current-element' until the container is found. Note:
4242 ;; When using `org-element-at-point', secondary values are never
4243 ;; parsed since the function focuses on elements, not on objects.
4245 ;; At a deeper level, `org-element-context' lists all elements and
4246 ;; objects containing point.
4248 ;; `org-element-nested-p' and `org-element-swap-A-B' may be used
4249 ;; internally by navigation and manipulation tools.
4251 ;;;###autoload
4252 (defun org-element-at-point (&optional keep-trail)
4253 "Determine closest element around point.
4255 Return value is a list like (TYPE PROPS) where TYPE is the type
4256 of the element and PROPS a plist of properties associated to the
4257 element.
4259 Possible types are defined in `org-element-all-elements'.
4260 Properties depend on element or object type, but always
4261 include :begin, :end, :parent and :post-blank properties.
4263 As a special case, if point is at the very beginning of a list or
4264 sub-list, returned element will be that list instead of the first
4265 item. In the same way, if point is at the beginning of the first
4266 row of a table, returned element will be the table instead of the
4267 first row.
4269 If optional argument KEEP-TRAIL is non-nil, the function returns
4270 a list of of elements leading to element at point. The list's
4271 CAR is always the element at point. Following positions contain
4272 element's siblings, then parents, siblings of parents, until the
4273 first element of current section."
4274 (org-with-wide-buffer
4275 ;; If at an headline, parse it. It is the sole element that
4276 ;; doesn't require to know about context. Be sure to disallow
4277 ;; secondary string parsing, though.
4278 (if (org-with-limited-levels (org-at-heading-p))
4279 (progn
4280 (beginning-of-line)
4281 (if (not keep-trail) (org-element-headline-parser (point-max) t)
4282 (list (org-element-headline-parser (point-max) t))))
4283 ;; Otherwise move at the beginning of the section containing
4284 ;; point.
4285 (let ((origin (point))
4286 (end (save-excursion
4287 (org-with-limited-levels (outline-next-heading)) (point)))
4288 element type special-flag trail struct prevs parent)
4289 (org-with-limited-levels
4290 (if (org-with-limited-levels (org-before-first-heading-p))
4291 (goto-char (point-min))
4292 (org-back-to-heading)
4293 (forward-line)))
4294 (org-skip-whitespace)
4295 (beginning-of-line)
4296 ;; Parse successively each element, skipping those ending
4297 ;; before original position.
4298 (catch 'exit
4299 (while t
4300 (setq element
4301 (org-element--current-element end 'element special-flag struct)
4302 type (car element))
4303 (org-element-put-property element :parent parent)
4304 (when keep-trail (push element trail))
4305 (cond
4306 ;; 1. Skip any element ending before point. Also skip
4307 ;; element ending at point when we're sure that another
4308 ;; element has started.
4309 ((let ((elem-end (org-element-property :end element)))
4310 (when (or (< elem-end origin)
4311 (and (= elem-end origin) (/= elem-end end)))
4312 (goto-char elem-end))))
4313 ;; 2. An element containing point is always the element at
4314 ;; point.
4315 ((not (memq type org-element-greater-elements))
4316 (throw 'exit (if keep-trail trail element)))
4317 ;; 3. At any other greater element type, if point is
4318 ;; within contents, move into it.
4320 (let ((cbeg (org-element-property :contents-begin element))
4321 (cend (org-element-property :contents-end element)))
4322 (if (or (not cbeg) (not cend) (> cbeg origin) (< cend origin)
4323 ;; Create an anchor for tables and plain lists:
4324 ;; when point is at the very beginning of these
4325 ;; elements, ignoring affiliated keywords,
4326 ;; target them instead of their contents.
4327 (and (= cbeg origin) (memq type '(plain-list table)))
4328 ;; When point is at contents end, do not move
4329 ;; into elements with an explicit ending, but
4330 ;; return that element instead.
4331 (and (= cend origin)
4332 (memq type
4333 '(center-block
4334 drawer dynamic-block inlinetask item
4335 plain-list property-drawer quote-block
4336 special-block))))
4337 (throw 'exit (if keep-trail trail element))
4338 (setq parent element)
4339 (case type
4340 (plain-list
4341 (setq special-flag 'item
4342 struct (org-element-property :structure element)))
4343 (property-drawer (setq special-flag 'node-property))
4344 (table (setq special-flag 'table-row))
4345 (otherwise (setq special-flag nil)))
4346 (setq end cend)
4347 (goto-char cbeg)))))))))))
4349 ;;;###autoload
4350 (defun org-element-context ()
4351 "Return closest element or object around point.
4353 Return value is a list like (TYPE PROPS) where TYPE is the type
4354 of the element or object and PROPS a plist of properties
4355 associated to it.
4357 Possible types are defined in `org-element-all-elements' and
4358 `org-element-all-objects'. Properties depend on element or
4359 object type, but always include :begin, :end, :parent
4360 and :post-blank properties."
4361 (org-with-wide-buffer
4362 (let* ((origin (point))
4363 (element (org-element-at-point))
4364 (type (car element))
4365 end)
4366 ;; Check if point is inside an element containing objects or at
4367 ;; a secondary string. In that case, move to beginning of the
4368 ;; element or secondary string and set END to the other side.
4369 (if (not (or (and (eq type 'item)
4370 (let ((tag (org-element-property :tag element)))
4371 (and tag
4372 (progn
4373 (beginning-of-line)
4374 (search-forward tag (point-at-eol))
4375 (goto-char (match-beginning 0))
4376 (and (>= origin (point))
4377 (<= origin
4378 ;; `1+' is required so some
4379 ;; successors can match
4380 ;; properly their object.
4381 (setq end (1+ (match-end 0)))))))))
4382 (and (memq type '(headline inlinetask))
4383 (progn (beginning-of-line)
4384 (skip-chars-forward "* ")
4385 (setq end (point-at-eol))))
4386 (and (memq type '(paragraph table-row verse-block))
4387 (let ((cbeg (org-element-property
4388 :contents-begin element))
4389 (cend (org-element-property
4390 :contents-end element)))
4391 (and (>= origin cbeg)
4392 (<= origin cend)
4393 (progn (goto-char cbeg) (setq end cend)))))))
4394 element
4395 (let ((restriction (org-element-restriction element))
4396 (parent element)
4397 candidates)
4398 (catch 'exit
4399 (while (setq candidates (org-element--get-next-object-candidates
4400 end restriction candidates))
4401 (let ((closest-cand (rassq (apply 'min (mapcar 'cdr candidates))
4402 candidates)))
4403 ;; If ORIGIN is before next object in element, there's
4404 ;; no point in looking further.
4405 (if (> (cdr closest-cand) origin) (throw 'exit parent)
4406 (let* ((object
4407 (progn (goto-char (cdr closest-cand))
4408 (funcall (intern (format "org-element-%s-parser"
4409 (car closest-cand))))))
4410 (cbeg (org-element-property :contents-begin object))
4411 (cend (org-element-property :contents-end object)))
4412 (cond
4413 ;; ORIGIN is after OBJECT, so skip it.
4414 ((< (org-element-property :end object) origin)
4415 (goto-char (org-element-property :end object)))
4416 ;; ORIGIN is within a non-recursive object or at an
4417 ;; object boundaries: Return that object.
4418 ((or (not cbeg) (> cbeg origin) (< cend origin))
4419 (throw 'exit
4420 (org-element-put-property object :parent parent)))
4421 ;; Otherwise, move within current object and restrict
4422 ;; search to the end of its contents.
4423 (t (goto-char cbeg)
4424 (org-element-put-property object :parent parent)
4425 (setq parent object
4426 restriction (org-element-restriction object)
4427 end cend)))))))
4428 parent))))))
4430 (defsubst org-element-nested-p (elem-A elem-B)
4431 "Non-nil when elements ELEM-A and ELEM-B are nested."
4432 (let ((beg-A (org-element-property :begin elem-A))
4433 (beg-B (org-element-property :begin elem-B))
4434 (end-A (org-element-property :end elem-A))
4435 (end-B (org-element-property :end elem-B)))
4436 (or (and (>= beg-A beg-B) (<= end-A end-B))
4437 (and (>= beg-B beg-A) (<= end-B end-A)))))
4439 (defun org-element-swap-A-B (elem-A elem-B)
4440 "Swap elements ELEM-A and ELEM-B.
4441 Assume ELEM-B is after ELEM-A in the buffer. Leave point at the
4442 end of ELEM-A."
4443 (goto-char (org-element-property :begin elem-A))
4444 ;; There are two special cases when an element doesn't start at bol:
4445 ;; the first paragraph in an item or in a footnote definition.
4446 (let ((specialp (not (bolp))))
4447 ;; Only a paragraph without any affiliated keyword can be moved at
4448 ;; ELEM-A position in such a situation. Note that the case of
4449 ;; a footnote definition is impossible: it cannot contain two
4450 ;; paragraphs in a row because it cannot contain a blank line.
4451 (if (and specialp
4452 (or (not (eq (org-element-type elem-B) 'paragraph))
4453 (/= (org-element-property :begin elem-B)
4454 (org-element-property :contents-begin elem-B))))
4455 (error "Cannot swap elements"))
4456 ;; In a special situation, ELEM-A will have no indentation. We'll
4457 ;; give it ELEM-B's (which will in, in turn, have no indentation).
4458 (let* ((ind-B (when specialp
4459 (goto-char (org-element-property :begin elem-B))
4460 (org-get-indentation)))
4461 (beg-A (org-element-property :begin elem-A))
4462 (end-A (save-excursion
4463 (goto-char (org-element-property :end elem-A))
4464 (skip-chars-backward " \r\t\n")
4465 (point-at-eol)))
4466 (beg-B (org-element-property :begin elem-B))
4467 (end-B (save-excursion
4468 (goto-char (org-element-property :end elem-B))
4469 (skip-chars-backward " \r\t\n")
4470 (point-at-eol)))
4471 ;; Store overlays responsible for visibility status. We
4472 ;; also need to store their boundaries as they will be
4473 ;; removed from buffer.
4474 (overlays
4475 (cons
4476 (mapcar (lambda (ov) (list ov (overlay-start ov) (overlay-end ov)))
4477 (overlays-in beg-A end-A))
4478 (mapcar (lambda (ov) (list ov (overlay-start ov) (overlay-end ov)))
4479 (overlays-in beg-B end-B))))
4480 ;; Get contents.
4481 (body-A (buffer-substring beg-A end-A))
4482 (body-B (delete-and-extract-region beg-B end-B)))
4483 (goto-char beg-B)
4484 (when specialp
4485 (setq body-B (replace-regexp-in-string "\\`[ \t]*" "" body-B))
4486 (org-indent-to-column ind-B))
4487 (insert body-A)
4488 ;; Restore ex ELEM-A overlays.
4489 (let ((offset (- beg-B beg-A)))
4490 (mapc (lambda (ov)
4491 (move-overlay
4492 (car ov) (+ (nth 1 ov) offset) (+ (nth 2 ov) offset)))
4493 (car overlays))
4494 (goto-char beg-A)
4495 (delete-region beg-A end-A)
4496 (insert body-B)
4497 ;; Restore ex ELEM-B overlays.
4498 (mapc (lambda (ov)
4499 (move-overlay
4500 (car ov) (- (nth 1 ov) offset) (- (nth 2 ov) offset)))
4501 (cdr overlays)))
4502 (goto-char (org-element-property :end elem-B)))))
4504 (provide 'org-element)
4506 ;; Local variables:
4507 ;; generated-autoload-file: "org-loaddefs.el"
4508 ;; End:
4510 ;;; org-element.el ends here