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1 ;;; org-element.el --- Parser And Applications for Org syntax
3 ;; Copyright (C) 2012-2015 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:
24 ;;
25 ;; Org syntax can be divided into three categories: "Greater
26 ;; elements", "Elements" and "Objects".
27 ;;
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.
31 ;;
32 ;; An element always starts and ends at the beginning of a line. With
33 ;; a few exceptions (`clock', `headline', `inlinetask', `item',
34 ;; `planning', `property-drawer', `node-property', `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.
41 ;;
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'.
47 ;;
48 ;; Other element types are: `babel-call', `clock', `comment',
49 ;; `comment-block', `diary-sexp', `example-block', `export-block',
50 ;; `fixed-width', `horizontal-rule', `keyword', `latex-environment',
51 ;; `node-property', `paragraph', `planning', `src-block', `table',
52 ;; `table-row' and `verse-block'. Among them, `paragraph' and
53 ;; `verse-block' types can contain Org objects and plain text.
54 ;;
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'.
62 ;;
63 ;; Some elements also have special properties whose value can hold
64 ;; objects themselves (e.g. an item tag or a headline name). Such
65 ;; values are called "secondary strings". Any object belongs to
66 ;; either an element or a secondary string.
67 ;;
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 ;; elements and objects containing objects will also have
76 ;; `:contents-begin' and `:contents-end' properties to delimit
77 ;; contents. Eventually, All elements have a `:post-affiliated'
78 ;; property referring to the buffer position after all affiliated
79 ;; keywords, if any, or to their beginning position otherwise.
80 ;;
81 ;; At the lowest level, a `:parent' property is also attached to any
82 ;; string, as a text property.
83 ;;
84 ;; Lisp-wise, an element or an object can be represented as a list.
85 ;; It follows the pattern (TYPE PROPERTIES CONTENTS), where:
86 ;; TYPE is a symbol describing the Org element or object.
87 ;; PROPERTIES is the property list attached to it. See docstring of
88 ;; appropriate parsing function to get an exhaustive
89 ;; list.
90 ;; CONTENTS is a list of elements, objects or raw strings contained
91 ;; in the current element or object, when applicable.
92 ;;
93 ;; An Org buffer is a nested list of such elements and objects, whose
94 ;; type is `org-data' and properties is nil.
95 ;;
96 ;; The first part of this file defines Org syntax, while the second
97 ;; one provide accessors and setters functions.
98 ;;
99 ;; The next part implements a parser and an interpreter for each
100 ;; element and object type in Org syntax.
101 ;;
102 ;; The following part creates a fully recursive buffer parser. It
103 ;; also provides a tool to map a function to elements or objects
104 ;; matching some criteria in the parse tree. Functions of interest
105 ;; are `org-element-parse-buffer', `org-element-map' and, to a lesser
106 ;; extent, `org-element-parse-secondary-string'.
107 ;;
108 ;; The penultimate part is the cradle of an interpreter for the
109 ;; obtained parse tree: `org-element-interpret-data'.
110 ;;
111 ;; The library ends by furnishing `org-element-at-point' function, and
112 ;; a way to give information about document structure around point
113 ;; with `org-element-context'. A cache mechanism is also provided for
114 ;; these functions.
117 ;;; Code:
124 \f
125 ;;; Definitions And Rules
126 ;;
127 ;; Define elements, greater elements and specify recursive objects,
128 ;; along with the affiliated keywords recognized. Also set up
129 ;; restrictions on recursive objects combinations.
130 ;;
131 ;; `org-element-update-syntax' builds proper syntax regexps according
132 ;; to current setup.
135 "Regexp to separate paragraphs in an Org buffer.
137 is not sufficient to know if point is at a paragraph ending. See
141 "Regexp possibly matching the beginning of an object.
142 This regexp allows false positives. Dedicated parser (e.g.,
143 `org-export-bold-parser') will take care of further filtering.
144 Radio links are not matched by this regexp, as they are treated
148 "Build variable syntax regexps."
151 ;; Headlines, inlinetasks.
153 ;; Footnote definitions.
155 ;; Diary sexps.
158 ;; Empty lines.
160 ;; Tables (any type).
163 ;; Comments, keyword-like or block-like constructs.
164 ;; Blocks and keywords with dual values need to be
165 ;; double-checked.
170 ;; Drawers (any type) and fixed-width areas. Drawers
171 ;; need to be double-checked.
173 ;; Horizontal rules.
175 ;; LaTeX environments.
177 ;; Clock lines.
179 ;; Lists.
186 org-element--object-regexp
190 ;; Sub/superscript.
192 ;; Bold, code, italic, strike-through, underline
193 ;; and verbatim.
197 ;; Plain links.
199 ;; Objects starting with "[": regular link,
200 ;; footnote reference, statistics cookie,
201 ;; timestamp (inactive).
203 ;; Objects starting with "@": export snippets.
204 "@@"
205 ;; Objects starting with "{": macro.
206 "{{{"
207 ;; Objects starting with "<" : timestamp
208 ;; (active, diary), target, radio target and
209 ;; angular links.
211 ;; Objects starting with "$": latex fragment.
213 ;; Objects starting with "\": line break,
214 ;; entity, latex fragment.
216 ;; Objects starting with raw text: inline Babel
217 ;; source block, inline Babel call.
223 ;;;###autoload
225 "Update parser internals."
232 dynamic-block example-block export-block fixed-width
233 footnote-definition headline horizontal-rule inlinetask item
234 keyword latex-environment node-property paragraph plain-list
235 planning property-drawer quote-block section
236 special-block src-block table table-row verse-block)
241 item plain-list property-drawer quote-block section
242 special-block table)
247 inline-src-block italic line-break latex-fragment link macro
248 radio-target statistics-cookie strike-through subscript superscript
249 table-cell target timestamp underline verbatim)
254 superscript table-cell underline)
268 "Alist between block names and the associated parsing function.
269 Names must be uppercase. Any block whose name has no association
275 "List of affiliated keywords as strings.
283 "Alist of usual translations for keywords.
284 The key is the old name and the value the new one. The property
288 "List of affiliated keywords that can occur more than once in an element.
290 Their value will be consed into a list of strings, which will be
291 returned as the value of the property.
293 This list is checked after translations have been applied. See
294 `org-element-keyword-translation-alist'.
300 "List of affiliated keywords whose value can be parsed.
302 Their value will be stored as a secondary string: a list of
303 strings and objects.
305 This list is checked after translations have been applied. See
310 org-element-parsed-keywords)
311 "Alist of parsed keywords and associated properties.
312 This is generated from `org-element-parsed-keywords', which
316 "List of affiliated keywords which can have a secondary value.
318 In Org syntax, they can be written with optional square brackets
319 before the colons. For example, RESULTS keyword can be
320 associated to a hash value with the following:
322 #+RESULTS[hash-string]: some-source
324 This list is checked after translations have been applied. See
330 ;; Dual affiliated keywords.
334 ;; Regular affiliated keywords.
339 org-element-affiliated-keywords)))
341 ;; Export attributes.
343 "Regexp matching any affiliated keyword.
345 Keyword name is put in match group 1. Moreover, if keyword
346 belongs to `org-element-dual-keywords', put the dual value in
347 match group 2.
361 ;; Ignore all links excepted plain links in a link description.
362 ;; Also ignore radio-targets and line breaks.
364 italic latex-fragment macro plain-link statistics-cookie
365 strike-through subscript superscript underline verbatim)
367 ;; Remove any variable object from radio target as it would
368 ;; prevent it from being properly recognized.
370 subscript superscript underline superscript)
374 ;; Ignore inline babel call and inline src block as formulas are
375 ;; possible. Also ignore line breaks and statistics cookies.
377 latex-fragment link macro radio-target strike-through
378 subscript superscript target timestamp underline verbatim)
382 "Alist of objects restrictions.
384 key is an element or object type containing objects and value is
385 a list of types that can be contained within an element or object
386 of such type.
388 For example, in a `radio-target' object, one can only find
389 entities, latex-fragments, subscript, superscript and text
390 markup.
392 This alist also applies to secondary string. For example, an
393 `headline' type element doesn't directly contain objects, but
408 "Table used internally to pair only square brackets.
412 \f
413 ;;; Accessors and Setters
414 ;;
415 ;; Provide four accessors: `org-element-type', `org-element-property'
416 ;; `org-element-contents' and `org-element-restriction'.
417 ;;
418 ;; Setter functions allow to modify elements by side effect. There is
419 ;; `org-element-put-property', `org-element-set-contents'. These
420 ;; low-level functions are useful to build a parse tree.
421 ;;
422 ;; `org-element-adopt-element', `org-element-set-element',
423 ;; `org-element-extract-element' and `org-element-insert-before' are
424 ;; high-level functions useful to modify a parse tree.
425 ;;
426 ;; `org-element-secondary-p' is a predicate used to know if a given
427 ;; object belongs to a secondary string. `org-element-copy' returns
428 ;; an element or object, stripping its parent property in the process.
431 "Return type of ELEMENT.
433 The function returns the type of the element or object provided.
434 It can also return the following special value:
435 `plain-text' for a string
436 `org-data' for a complete document
437 nil in any other case."
443 "Extract the value from the PROPERTY of an ELEMENT."
448 "Extract contents from an ELEMENT."
454 "Return restriction associated to ELEMENT.
455 ELEMENT can be an element, an object or a symbol representing an
456 element or object type."
458 org-element-object-restrictions)))
461 "In ELEMENT set PROPERTY to VALUE.
462 Return modified element."
465 element))
468 "Set ELEMENT contents to CONTENTS."
475 "Non-nil when OBJECT directly belongs to a secondary string.
476 Return value is the property name, as a keyword, or nil."
479 org-element-secondary-value-alist))))
486 "Append elements to the contents of another element.
488 PARENT is an element or object. CHILDREN can be elements,
489 objects, or a strings.
491 The function takes care of setting `:parent' property for CHILD.
492 Return parent element."
494 ;; Link every child to PARENT. If PARENT is nil, it is a secondary
495 ;; string: parent is the list itself.
498 ;; Add CHILDREN at the end of PARENT contents.
501 parent
503 ;; Return modified PARENT element.
507 "Extract ELEMENT from parse tree.
508 Remove element from the parse tree by side-effect, and return it
509 with its `:parent' property stripped out."
514 parent secondary
517 parent
519 ;; Return ELEMENT with its :parent removed.
523 "Insert ELEMENT before LOCATION in parse tree.
524 LOCATION is an element, object or string within the parse tree.
525 Parse tree is modified by side effect."
530 ;; Special case: LOCATION is the first element of an
531 ;; independent secondary string (e.g. :title property). Add
532 ;; ELEMENT in-place.
536 ;; Install ELEMENT at the appropriate POSITION within SIBLINGS.
546 ;; Store SIBLINGS at appropriate place in parse tree.
551 ;; Set appropriate :parent property.
555 "Replace element or object OLD with element or object NEW.
556 The function takes care of setting `:parent' property for NEW."
557 ;; Ensure OLD and NEW have the same parent.
561 ;; We cannot replace OLD with NEW since one of them is not an
562 ;; object or element. We take the long path.
565 ;; Since OLD is going to be changed into NEW by side-effect, first
566 ;; make sure that every element or object within NEW has OLD as
567 ;; parent.
570 ;; Transfer contents.
572 ;; Overwrite OLD's properties with NEW's.
574 ;; Transfer type.
578 "Create a new element of type TYPE.
579 Optional argument PROPS, when non-nil, is a plist defining the
580 properties of the element. CHILDREN can be elements, objects or
581 strings."
585 "Return a copy of DATUM.
586 DATUM is an element, object, string or nil. `:parent' property
587 is cleared and contents are removed in the process."
598 \f
599 ;;; Greater elements
600 ;;
601 ;; For each greater element type, we define a parser and an
602 ;; interpreter.
603 ;;
604 ;; A parser returns the element or object as the list described above.
605 ;; Most of them accepts no argument. Though, exceptions exist. Hence
606 ;; every element containing a secondary string (see
607 ;; `org-element-secondary-value-alist') will accept an optional
608 ;; argument to toggle parsing of these secondary strings. Moreover,
609 ;; `item' parser requires current list's structure as its first
610 ;; element.
611 ;;
612 ;; An interpreter accepts two arguments: the list representation of
613 ;; the element or object, and its contents. The latter may be nil,
614 ;; depending on the element or object considered. It returns the
615 ;; appropriate Org syntax, as a string.
616 ;;
617 ;; Parsing functions must follow the naming convention:
618 ;; org-element-TYPE-parser, where TYPE is greater element's type, as
619 ;; defined in `org-element-greater-elements'.
620 ;;
621 ;; Similarly, interpreting functions must follow the naming
622 ;; convention: org-element-TYPE-interpreter.
623 ;;
624 ;; With the exception of `headline' and `item' types, greater elements
625 ;; cannot contain other greater elements of their own type.
626 ;;
627 ;; Beside implementing a parser and an interpreter, adding a new
628 ;; greater element requires to tweak `org-element--current-element'.
629 ;; Moreover, the newly defined type must be added to both
630 ;; `org-element-all-elements' and `org-element-greater-elements'.
633 ;;;; Center Block
636 "Parse a center block.
638 LIMIT bounds the search. AFFILIATED is a list of which CAR is
639 the buffer position at the beginning of the first affiliated
640 keyword and CDR is a plist of affiliated keywords along with
641 their value.
643 Return a list whose CAR is `center-block' and CDR is a plist
644 containing `:begin', `:end', `:contents-begin', `:contents-end',
645 `:post-blank' and `:post-affiliated' keywords.
647 Assume point is at the beginning of the block."
651 ;; Incomplete block: parse it as a paragraph.
656 ;; Empty blocks have no contents.
670 :end end
671 :contents-begin contents-begin
672 :contents-end contents-end
678 "Interpret CENTER-BLOCK element as Org syntax.
679 CONTENTS is the contents of the element."
683 ;;;; Drawer
686 "Parse a drawer.
688 LIMIT bounds the search. AFFILIATED is a list of which CAR is
689 the buffer position at the beginning of the first affiliated
690 keyword and CDR is a plist of affiliated keywords along with
691 their value.
693 Return a list whose CAR is `drawer' and CDR is a plist containing
694 `:drawer-name', `:begin', `:end', `:contents-begin',
695 `:contents-end', `:post-blank' and `:post-affiliated' keywords.
697 Assume point is at beginning of drawer."
700 ;; Incomplete drawer: parse it as a paragraph.
708 ;; Empty drawers have no contents.
721 :end end
722 :drawer-name name
723 :contents-begin contents-begin
724 :contents-end contents-end
730 "Interpret DRAWER element as Org syntax.
731 CONTENTS is the contents of the element."
734 contents))
737 ;;;; Dynamic Block
740 "Parse a dynamic block.
742 LIMIT bounds the search. AFFILIATED is a list of which CAR is
743 the buffer position at the beginning of the first affiliated
744 keyword and CDR is a plist of affiliated keywords along with
745 their value.
747 Return a list whose CAR is `dynamic-block' and CDR is a plist
748 containing `:block-name', `:begin', `:end', `:contents-begin',
749 `:contents-end', `:arguments', `:post-blank' and
750 `:post-affiliated' keywords.
752 Assume point is at beginning of dynamic block."
756 ;; Incomplete block: parse it as a paragraph.
765 ;; Empty blocks have no contents.
778 :end end
779 :block-name name
780 :arguments arguments
781 :contents-begin contents-begin
782 :contents-end contents-end
788 "Interpret DYNAMIC-BLOCK element as Org syntax.
789 CONTENTS is the contents of the element."
794 contents))
797 ;;;; Footnote Definition
800 "Parse a footnote definition.
802 LIMIT bounds the search. AFFILIATED is a list of which CAR is
803 the buffer position at the beginning of the first affiliated
804 keyword and CDR is a plist of affiliated keywords along with
805 their value.
807 Return a list whose CAR is `footnote-definition' and CDR is
808 a plist containing `:label', `:begin' `:end', `:contents-begin',
809 `:contents-end', `:post-blank' and `:post-affiliated' keywords.
811 Assume point is at the beginning of the footnote definition."
839 :begin begin
840 :end end
841 :contents-begin contents-begin
842 :contents-end contents-end
848 "Interpret FOOTNOTE-DEFINITION element as Org syntax.
849 CONTENTS is the contents of the footnote-definition."
851 " "
852 contents))
855 ;;;; Headline
858 "Return node properties associated to headline at point.
859 Upcase property names. It avoids confusion between properties
860 obtained through property drawer and default properties from the
861 parser (e.g. `:end' and :END:). Return value is a plist."
873 properties))))
876 "Return time properties associated to headline at point.
877 Return value is a plist."
891 plist))))
894 "Parse a headline.
896 Return a list whose CAR is `headline' and CDR is a plist
897 containing `:raw-value', `:title', `:begin', `:end',
898 `:pre-blank', `:contents-begin' and `:contents-end', `:level',
899 `:priority', `:tags', `:todo-keyword',`:todo-type', `:scheduled',
900 `:deadline', `:closed', `:archivedp', `:commentedp'
901 `:footnote-section-p', `:post-blank' and `:post-affiliated'
902 keywords.
904 The plist also contains any property set in the property drawer,
905 with its name in upper cases and colons added at the
906 beginning (e.g., `:CUSTOM_ID').
908 LIMIT is a buffer position bounding the search.
910 When RAW-SECONDARY-P is non-nil, headline's title will not be
911 parsed as a secondary string, but as a plain string instead.
913 Assume point is at beginning of the headline."
960 :begin begin
961 :end end
962 :pre-blank
965 :contents-begin contents-begin
966 :contents-end contents-end
967 :level level
968 :priority priority
969 :tags tags
970 :todo-keyword todo
971 :todo-type todo-type
974 end)
975 :footnote-section-p footnote-section-p
976 :archivedp archivedp
977 :commentedp commentedp
979 time-props
980 standard-props))))
982 headline :title
991 nil
997 "Interpret HEADLINE element as Org syntax.
998 CONTENTS is the contents of the element."
1011 ?*)
1015 " "
1018 org-footnote-section
1019 title))))
1021 heading
1022 ;; Align tags.
1030 ?\s)
1031 tags))
1035 tags))))
1037 contents)))
1040 ;;;; Inlinetask
1043 "Parse an inline task.
1045 Return a list whose CAR is `inlinetask' and CDR is a plist
1046 containing `:title', `:begin', `:end', `:contents-begin' and
1047 `:contents-end', `:level', `:priority', `:raw-value', `:tags',
1048 `:todo-keyword', `:todo-type', `:scheduled', `:deadline',
1049 `:closed', `:post-blank' and `:post-affiliated' keywords.
1051 The plist also contains any property set in the property drawer,
1052 with its name in upper cases and colons added at the
1053 beginning (e.g., `:CUSTOM_ID').
1055 When optional argument RAW-SECONDARY-P is non-nil, inline-task's
1056 title will not be parsed as a secondary string, but as a plain
1057 string instead.
1059 Assume point is at beginning of the inline task."
1104 :begin begin
1105 :end end
1106 :contents-begin contents-begin
1107 :contents-end contents-end
1108 :level level
1109 :priority priority
1110 :tags tags
1111 :todo-keyword todo
1112 :todo-type todo-type
1115 time-props
1116 standard-props))))
1118 inlinetask :title
1127 nil
1133 "Interpret INLINETASK element as Org syntax.
1134 CONTENTS is the contents of inlinetask."
1148 ;; Align tags.
1156 ? )
1157 tags))
1161 tags))))
1162 ;; Prefer degenerate inlinetasks when there are no
1163 ;; contents.
1166 contents
1170 ;;;; Item
1173 "Parse an item.
1175 STRUCT is the structure of the plain list.
1177 Return a list whose CAR is `item' and CDR is a plist containing
1178 `:bullet', `:begin', `:end', `:contents-begin', `:contents-end',
1179 `:checkbox', `:counter', `:tag', `:structure', `:post-blank' and
1180 `:post-affiliated' keywords.
1182 When optional argument RAW-SECONDARY-P is non-nil, item's tag, if
1183 any, will not be parsed as a secondary string, but as a plain
1184 string instead.
1186 Assume point is at the beginning of the item."
1209 ;; Ignore tags in un-ordered lists: they are just
1210 ;; a part of item's body.
1217 ;; If first line isn't empty, contents really
1218 ;; start at the text after item's meta-data.
1228 :begin begin
1229 :end end
1230 :contents-begin contents-begin
1231 :contents-end contents-end
1232 :checkbox checkbox
1233 :counter counter
1234 :structure struct
1238 item :tag
1249 "Interpret ITEM element as Org syntax.
1250 CONTENTS is the contents of the element."
1260 ;; Compute indentation.
1265 ;; Indent contents.
1267 bullet
1281 ;;;; Plain List
1284 ;; Return structure of list at point. Internal function. See
1285 ;; `org-list-struct' for details.
1290 items struct)
1295 ;; At limit: end all items.
1304 ;; At list end: end all items.
1309 ;; At a new item: end previous sibling.
1321 ind
1322 bullet
1325 ;; Description tag.
1329 ;; Ending position, unknown so far.
1330 nil)))
1331 items))
1333 ;; Skip empty lines.
1335 ;; Skip inline tasks and blank lines along the way.
1342 ;; At some text line. Check if it ends any previous item.
1355 ;; Skip blocks (any type) and drawers contents.
1360 limit t)))
1366 "Parse a plain list.
1368 LIMIT bounds the search. AFFILIATED is a list of which CAR is
1369 the buffer position at the beginning of the first affiliated
1370 keyword and CDR is a plist of affiliated keywords along with
1371 their value. STRUCTURE is the structure of the plain list being
1372 parsed.
1374 Return a list whose CAR is `plain-list' and CDR is a plist
1375 containing `:type', `:begin', `:end', `:contents-begin' and
1376 `:contents-end', `:structure', `:post-blank' and
1377 `:post-affiliated' keywords.
1379 Assume point is at the beginning of the list."
1393 pos))
1397 ;; Return value.
1401 :begin begin
1402 :end end
1403 :contents-begin contents-begin
1404 :contents-end contents-end
1405 :structure struct
1411 "Interpret PLAIN-LIST element as Org syntax.
1412 CONTENTS is the contents of the element."
1420 ;;;; Property Drawer
1423 "Parse a property drawer.
1425 LIMIT bounds the search.
1427 Return a list whose car is `property-drawer' and cdr is a plist
1428 containing `:begin', `:end', `:contents-begin', `:contents-end',
1429 `:post-blank' and `:post-affiliated' keywords.
1431 Assume point is at the beginning of the property drawer."
1444 :end end
1446 :contents-end contents-end
1451 "Interpret PROPERTY-DRAWER element as Org syntax.
1452 CONTENTS is the properties within the drawer."
1456 ;;;; Quote Block
1459 "Parse a quote block.
1461 LIMIT bounds the search. AFFILIATED is a list of which CAR is
1462 the buffer position at the beginning of the first affiliated
1463 keyword and CDR is a plist of affiliated keywords along with
1464 their value.
1466 Return a list whose CAR is `quote-block' and CDR is a plist
1467 containing `:begin', `:end', `:contents-begin', `:contents-end',
1468 `:post-blank' and `:post-affiliated' keywords.
1470 Assume point is at the beginning of the block."
1474 ;; Incomplete block: parse it as a paragraph.
1480 ;; Empty blocks have no contents.
1493 :end end
1494 :contents-begin contents-begin
1495 :contents-end contents-end
1501 "Interpret QUOTE-BLOCK element as Org syntax.
1502 CONTENTS is the contents of the element."
1506 ;;;; Section
1509 "Parse a section.
1511 LIMIT bounds the search.
1513 Return a list whose CAR is `section' and CDR is a plist
1514 containing `:begin', `:end', `:contents-begin', `contents-end',
1515 `:post-blank' and `:post-affiliated' keywords."
1517 ;; Beginning of section is the beginning of the first non-blank
1518 ;; line after previous headline.
1527 :end end
1528 :contents-begin begin
1529 :contents-end pos-before-blank
1534 "Interpret SECTION element as Org syntax.
1535 CONTENTS is the contents of the element."
1536 contents)
1539 ;;;; Special Block
1542 "Parse a special block.
1544 LIMIT bounds the search. AFFILIATED is a list of which CAR is
1545 the buffer position at the beginning of the first affiliated
1546 keyword and CDR is a plist of affiliated keywords along with
1547 their value.
1549 Return a list whose CAR is `special-block' and CDR is a plist
1550 containing `:type', `:begin', `:end', `:contents-begin',
1551 `:contents-end', `:post-blank' and `:post-affiliated' keywords.
1553 Assume point is at the beginning of the block."
1560 limit t)))
1561 ;; Incomplete block: parse it as a paragraph.
1567 ;; Empty blocks have no contents.
1580 :begin begin
1581 :end end
1582 :contents-begin contents-begin
1583 :contents-end contents-end
1589 "Interpret SPECIAL-BLOCK element as Org syntax.
1590 CONTENTS is the contents of the element."
1595 \f
1596 ;;; Elements
1597 ;;
1598 ;; For each element, a parser and an interpreter are also defined.
1599 ;; Both follow the same naming convention used for greater elements.
1600 ;;
1601 ;; Also, as for greater elements, adding a new element type is done
1602 ;; through the following steps: implement a parser and an interpreter,
1603 ;; tweak `org-element--current-element' so that it recognizes the new
1604 ;; type and add that new type to `org-element-all-elements'.
1605 ;;
1606 ;; As a special case, when the newly defined type is a block type,
1607 ;; `org-element-block-name-alist' has to be modified accordingly.
1610 ;;;; Babel Call
1613 "Parse a babel call.
1615 LIMIT bounds the search. AFFILIATED is a list of which car is
1616 the buffer position at the beginning of the first affiliated
1617 keyword and cdr is a plist of affiliated keywords along with
1618 their value.
1620 Return a list whose car is `babel-call' and cdr is a plist
1621 containing `:call', `:inside-header', `:arguments',
1622 `:end-header', `:begin', `:end', `:value', `:post-blank' and
1623 `:post-affiliated' as keywords."
1637 value)))
1647 :begin begin
1648 :end end
1649 :value value
1655 "Interpret BABEL-CALL element as Org syntax.
1656 CONTENTS is nil."
1666 ;;;; Clock
1669 "Parse a clock.
1671 LIMIT bounds the search.
1673 Return a list whose CAR is `clock' and CDR is a plist containing
1674 `:status', `:value', `:time', `:begin', `:end', `:post-blank' and
1675 `:post-affiliated' as keywords."
1695 :value value
1696 :duration duration
1697 :begin begin
1698 :end end
1699 :post-blank post-blank
1703 "Interpret CLOCK element as Org syntax.
1704 CONTENTS is nil."
1712 "%2s:%02s"
1716 ;;;; Comment
1719 "Parse a comment.
1721 LIMIT bounds the search. AFFILIATED is a list of which CAR is
1722 the buffer position at the beginning of the first affiliated
1723 keyword and CDR is a plist of affiliated keywords along with
1724 their value.
1726 Return a list whose CAR is `comment' and CDR is a plist
1727 containing `:begin', `:end', `:value', `:post-blank',
1728 `:post-affiliated' keywords.
1730 Assume point is at comment beginning."
1739 ;; Get comments ending.
1742 ;; Accumulate lines without leading hash and first
1743 ;; whitespace.
1757 :end end
1758 :value value
1764 "Interpret COMMENT element as Org syntax.
1765 CONTENTS is nil."
1769 ;;;; Comment Block
1772 "Parse an export block.
1774 LIMIT bounds the search. AFFILIATED is a list of which CAR is
1775 the buffer position at the beginning of the first affiliated
1776 keyword and CDR is a plist of affiliated keywords along with
1777 their value.
1779 Return a list whose CAR is `comment-block' and CDR is a plist
1780 containing `:begin', `:end', `:value', `:post-blank' and
1781 `:post-affiliated' keywords.
1783 Assume point is at comment block beginning."
1787 ;; Incomplete block: parse it as a paragraph.
1800 contents-begin contents-end)))
1804 :end end
1805 :value value
1811 "Interpret COMMENT-BLOCK element as Org syntax.
1812 CONTENTS is nil."
1819 ;;;; Diary Sexp
1822 "Parse a diary sexp.
1824 LIMIT bounds the search. AFFILIATED is a list of which CAR is
1825 the buffer position at the beginning of the first affiliated
1826 keyword and CDR is a plist of affiliated keywords along with
1827 their value.
1829 Return a list whose CAR is `diary-sexp' and CDR is a plist
1830 containing `:begin', `:end', `:value', `:post-blank' and
1831 `:post-affiliated' keywords."
1843 :begin begin
1844 :end end
1850 "Interpret DIARY-SEXP as Org syntax.
1851 CONTENTS is nil."
1855 ;;;; Example Block
1858 "Parse an example block.
1860 LIMIT bounds the search. AFFILIATED is a list of which CAR is
1861 the buffer position at the beginning of the first affiliated
1862 keyword and CDR is a plist of affiliated keywords along with
1863 their value.
1865 Return a list whose CAR is `example-block' and CDR is a plist
1866 containing `:begin', `:end', `:number-lines', `:preserve-indent',
1867 `:retain-labels', `:use-labels', `:label-fmt', `:switches',
1868 `:value', `:post-blank' and `:post-affiliated' keywords."
1872 ;; Incomplete block: parse it as a paragraph.
1880 ;; Switches analysis
1887 ;; Should labels be retained in (or stripped from) example
1888 ;; blocks?
1893 ;; What should code-references use - labels or
1894 ;; line-numbers?
1903 ;; Standard block parsing.
1911 contents-begin contents-end))
1912 block-ind))
1921 :end end
1922 :value value
1923 :switches switches
1924 :number-lines number-lines
1925 :preserve-indent preserve-indent
1926 :retain-labels retain-labels
1927 :use-labels use-labels
1928 :label-fmt label-fmt
1934 "Interpret EXAMPLE-BLOCK element as Org syntax.
1935 CONTENTS is nil."
1943 value
1948 ;;;; Export Block
1951 "Parse an export block.
1953 LIMIT bounds the search. AFFILIATED is a list of which CAR is
1954 the buffer position at the beginning of the first affiliated
1955 keyword and CDR is a plist of affiliated keywords along with
1956 their value.
1958 Return a list whose CAR is `export-block' and CDR is a plist
1959 containing `:begin', `:end', `:type', `:value', `:post-blank' and
1960 `:post-affiliated' keywords.
1962 Assume point is at export-block beginning."
1969 ;; Incomplete block: parse it as a paragraph.
1982 contents-end)))
1986 :end end
1987 :type type
1988 :value value
1994 "Interpret EXPORT-BLOCK element as Org syntax.
1995 CONTENTS is nil."
2002 ;;;; Fixed-width
2005 "Parse a fixed-width section.
2007 LIMIT bounds the search. AFFILIATED is a list of which CAR is
2008 the buffer position at the beginning of the first affiliated
2009 keyword and CDR is a plist of affiliated keywords along with
2010 their value.
2012 Return a list whose CAR is `fixed-width' and CDR is a plist
2013 containing `:begin', `:end', `:value', `:post-blank' and
2014 `:post-affiliated' keywords.
2016 Assume point is at the beginning of the fixed-width area."
2020 value
2025 ;; Accumulate text without starting colons.
2038 :end end
2039 :value value
2045 "Interpret FIXED-WIDTH element as Org syntax.
2046 CONTENTS is nil."
2054 ;;;; Horizontal Rule
2057 "Parse an horizontal rule.
2059 LIMIT bounds the search. AFFILIATED is a list of which CAR is
2060 the buffer position at the beginning of the first affiliated
2061 keyword and CDR is a plist of affiliated keywords along with
2062 their value.
2064 Return a list whose CAR is `horizontal-rule' and CDR is a plist
2065 containing `:begin', `:end', `:post-blank' and `:post-affiliated'
2066 keywords."
2076 :end end
2082 "Interpret HORIZONTAL-RULE element as Org syntax.
2083 CONTENTS is nil."
2087 ;;;; Keyword
2090 "Parse a keyword at point.
2092 LIMIT bounds the search. AFFILIATED is a list of which CAR is
2093 the buffer position at the beginning of the first affiliated
2094 keyword and CDR is a plist of affiliated keywords along with
2095 their value.
2097 Return a list whose CAR is `keyword' and CDR is a plist
2098 containing `:key', `:value', `:begin', `:end', `:post-blank' and
2099 `:post-affiliated' keywords."
2101 ;; An orphaned affiliated keyword is considered as a regular
2102 ;; keyword. In this case AFFILIATED is nil, so we take care of
2103 ;; this corner case.
2116 :value value
2117 :begin begin
2118 :end end
2124 "Interpret KEYWORD element as Org syntax.
2125 CONTENTS is nil."
2131 ;;;; Latex Environment
2135 "Regexp matching the beginning of a LaTeX environment.
2136 The environment is captured by the first group.
2142 "Format string matching the ending of a LaTeX environment.
2146 "Parse a LaTeX environment.
2148 LIMIT bounds the search. AFFILIATED is a list of which CAR is
2149 the buffer position at the beginning of the first affiliated
2150 keyword and CDR is a plist of affiliated keywords along with
2151 their value.
2153 Return a list whose CAR is `latex-environment' and CDR is a plist
2154 containing `:begin', `:end', `:value', `:post-blank' and
2155 `:post-affiliated' keywords.
2157 Assume point is at the beginning of the latex environment."
2164 limit t))
2165 ;; Incomplete latex environment: parse it as a paragraph.
2175 :end end
2176 :value value
2182 "Interpret LATEX-ENVIRONMENT element as Org syntax.
2183 CONTENTS is nil."
2187 ;;;; Node Property
2190 "Parse a node-property at point.
2192 LIMIT bounds the search.
2194 Return a list whose CAR is `node-property' and CDR is a plist
2195 containing `:key', `:value', `:begin', `:end', `:post-blank' and
2196 `:post-affiliated' keywords."
2206 limit))))
2209 :value value
2210 :begin begin
2211 :end end
2216 "Interpret NODE-PROPERTY element as Org syntax.
2217 CONTENTS is nil."
2223 ;;;; Paragraph
2226 "Parse a paragraph.
2228 LIMIT bounds the search. AFFILIATED is a list of which CAR is
2229 the buffer position at the beginning of the first affiliated
2230 keyword and CDR is a plist of affiliated keywords along with
2231 their value.
2233 Return a list whose CAR is `paragraph' and CDR is a plist
2234 containing `:begin', `:end', `:contents-begin' and
2235 `:contents-end', `:post-blank' and `:post-affiliated' keywords.
2237 Assume point is at the beginning of the paragraph."
2244 ;; A matching `org-element-paragraph-separate' is not
2245 ;; necessarily the end of the paragraph. In particular,
2246 ;; drawers, blocks or LaTeX environments opening lines
2247 ;; must be closed. Moreover keywords with a secondary
2248 ;; value must belong to "dual keywords".
2262 limit t)))
2268 limit t)))
2271 org-element-dual-keywords))
2272 ;; Everything else is unambiguous.
2285 :end end
2286 :contents-begin contents-begin
2287 :contents-end contents-end
2293 "Interpret PARAGRAPH element as Org syntax.
2294 CONTENTS is the contents of the element."
2295 contents)
2298 ;;;; Planning
2301 "Parse a planning.
2303 LIMIT bounds the search.
2305 Return a list whose CAR is `planning' and CDR is a plist
2306 containing `:closed', `:deadline', `:scheduled', `:begin',
2307 `:end', `:post-blank' and `:post-affiliated' keywords."
2317 closed deadline scheduled)
2329 :deadline deadline
2330 :scheduled scheduled
2331 :begin begin
2332 :end end
2333 :post-blank post-blank
2337 "Interpret PLANNING element as Org syntax.
2338 CONTENTS is nil."
2340 'identity
2357 ;;;; Src Block
2360 "Parse a src block.
2362 LIMIT bounds the search. AFFILIATED is a list of which CAR is
2363 the buffer position at the beginning of the first affiliated
2364 keyword and CDR is a plist of affiliated keywords along with
2365 their value.
2367 Return a list whose CAR is `src-block' and CDR is a plist
2368 containing `:language', `:switches', `:parameters', `:begin',
2369 `:end', `:number-lines', `:retain-labels', `:use-labels',
2370 `:label-fmt', `:preserve-indent', `:value', `:post-blank' and
2371 `:post-affiliated' keywords.
2373 Assume point is at the beginning of the block."
2376 limit t)))
2377 ;; Incomplete block: parse it as a paragraph.
2383 ;; Get language as a string.
2392 ;; Get switches.
2394 ;; Get parameters.
2396 ;; Switches analysis
2407 ;; Should labels be retained in (or stripped from)
2408 ;; src blocks?
2413 ;; What should code-references use - labels or
2414 ;; line-numbers?
2419 ;; Indentation.
2421 ;; Retrieve code.
2426 block-ind))
2430 ;; Get position after ending blank lines.
2440 :begin begin
2441 :end end
2442 :number-lines number-lines
2443 :preserve-indent preserve-indent
2444 :retain-labels retain-labels
2445 :use-labels use-labels
2446 :label-fmt label-fmt
2447 :value value
2453 "Interpret SRC-BLOCK element as Org syntax.
2454 CONTENTS is nil."
2463 val)
2477 ;;;; Table
2480 "Parse a table at point.
2482 LIMIT bounds the search. AFFILIATED is a list of which CAR is
2483 the buffer position at the beginning of the first affiliated
2484 keyword and CDR is a plist of affiliated keywords along with
2485 their value.
2487 Return a list whose CAR is `table' and CDR is a plist containing
2488 `:begin', `:end', `:tblfm', `:type', `:contents-begin',
2489 `:contents-end', `:value', `:post-blank' and `:post-affiliated'
2490 keywords.
2492 Assume point is at the beginning of the table."
2508 acc))
2515 :end end
2516 :type type
2517 :tblfm tblfm
2518 ;; Only `org' tables have contents. `table.el' tables
2519 ;; use a `:value' property to store raw table as
2520 ;; a string.
2525 table-begin table-end))
2531 "Interpret TABLE element as Org syntax.
2532 CONTENTS is a string, if table's type is `org', or nil."
2543 ;;;; Table Row
2546 "Parse table row at point.
2548 LIMIT bounds the search.
2550 Return a list whose CAR is `table-row' and CDR is a plist
2551 containing `:begin', `:end', `:contents-begin', `:contents-end',
2552 `:type', `:post-blank' and `:post-affiliated' keywords."
2556 ;; A table rule has no contents. In that case, ensure
2557 ;; CONTENTS-BEGIN matches CONTENTS-END.
2569 :begin begin
2570 :end end
2571 :contents-begin contents-begin
2572 :contents-end contents-end
2577 "Interpret TABLE-ROW element as Org syntax.
2578 CONTENTS is the contents of the table row."
2583 ;;;; Verse Block
2586 "Parse a verse block.
2588 LIMIT bounds the search. AFFILIATED is a list of which CAR is
2589 the buffer position at the beginning of the first affiliated
2590 keyword and CDR is a plist of affiliated keywords along with
2591 their value.
2593 Return a list whose CAR is `verse-block' and CDR is a plist
2594 containing `:begin', `:end', `:contents-begin', `:contents-end',
2595 `:post-blank' and `:post-affiliated' keywords.
2597 Assume point is at beginning of the block."
2601 ;; Incomplete block: parse it as a paragraph.
2616 :end end
2617 :contents-begin contents-begin
2618 :contents-end contents-end
2624 "Interpret VERSE-BLOCK element as Org syntax.
2625 CONTENTS is verse block contents."
2629 \f
2630 ;;; Objects
2631 ;;
2632 ;; Unlike to elements, raw text can be found between objects. Hence,
2633 ;; `org-element--object-lex' is provided to find the next object in
2634 ;; buffer.
2635 ;;
2636 ;; Some object types (e.g., `italic') are recursive. Restrictions on
2637 ;; object types they can contain will be specified in
2638 ;; `org-element-object-restrictions'.
2639 ;;
2640 ;; Creating a new type of object requires to alter
2641 ;; `org-element--object-regexp' and `org-element--object-lex', add the
2642 ;; new type in `org-element-all-objects', and possibly add
2643 ;; restrictions in `org-element-object-restrictions'.
2645 ;;;; Bold
2648 "Parse bold object at point, if any.
2650 When at a bold object, return a list whose car is `bold' and cdr
2651 is a plist with `:begin', `:end', `:contents-begin' and
2652 `:contents-end' and `:post-blank' keywords. Otherwise, return
2653 nil.
2655 Assume point is at the first star marker."
2667 :end end
2668 :contents-begin contents-begin
2669 :contents-end contents-end
2673 "Interpret BOLD object as Org syntax.
2674 CONTENTS is the contents of the object."
2678 ;;;; Code
2681 "Parse code object at point, if any.
2683 When at a code object, return a list whose car is `code' and cdr
2684 is a plist with `:value', `:begin', `:end' and `:post-blank'
2685 keywords. Otherwise, return nil.
2687 Assume point is at the first tilde marker."
2698 :begin begin
2699 :end end
2703 "Interpret CODE object as Org syntax.
2704 CONTENTS is nil."
2708 ;;;; Entity
2711 "Parse entity at point, if any.
2713 When at an entity, return a list whose car is `entity' and cdr
2714 a plist with `:begin', `:end', `:latex', `:latex-math-p',
2715 `:html', `:latin1', `:utf-8', `:ascii', `:use-brackets-p' and
2716 `:post-blank' as keywords. Otherwise, return nil.
2718 Assume point is at the beginning of the entity."
2720 (when (looking-at "\\\\\\(?:\\(?1:_ +\\)\\|\\(?1:there4\\|sup[123]\\|frac[13][24]\\|[a-zA-Z]+\\)\\(?2:$\\|{}\\|[^[:alpha:]]\\)\\)")
2738 :begin begin
2739 :end end
2740 :use-brackets-p bracketsp
2744 "Interpret ENTITY object as Org syntax.
2745 CONTENTS is nil."
2751 ;;;; Export Snippet
2754 "Parse export snippet at point.
2756 When at an export snippet, return a list whose car is
2757 `export-snippet' and cdr a plist with `:begin', `:end',
2758 `:back-end', `:value' and `:post-blank' as keywords. Otherwise,
2759 return nil.
2761 Assume point is at the beginning of the snippet."
2777 :value value
2778 :begin begin
2779 :end end
2783 "Interpret EXPORT-SNIPPET object as Org syntax.
2784 CONTENTS is nil."
2790 ;;;; Footnote Reference
2793 "Parse footnote reference at point, if any.
2795 When at a footnote reference, return a list whose car is
2796 `footnote-reference' and cdr a plist with `:label', `:type',
2797 `:begin', `:end', `:content-begin', `:contents-end' and
2798 `:post-blank' as keywords. Otherwise, return nil."
2818 :type type
2819 :begin begin
2820 :end end
2826 "Interpret FOOTNOTE-REFERENCE object as Org syntax.
2827 CONTENTS is its definition, when inline, or nil."
2833 ;;;; Inline Babel Call
2836 "Parse inline babel call at point, if any.
2838 When at an inline babel call, return a list whose car is
2839 `inline-babel-call' and cdr a plist with `:call',
2840 `:inside-header', `:arguments', `:end-header', `:begin', `:end',
2841 `:value' and `:post-blank' as keywords. Otherwise, return nil.
2843 Assume point is at the beginning of the babel call."
2859 :inside-header inside-header
2860 :arguments arguments
2861 :end-header end-header
2862 :begin begin
2863 :end end
2864 :value value
2868 "Interpret INLINE-BABEL-CALL object as Org syntax.
2869 CONTENTS is nil."
2879 ;;;; Inline Src Block
2882 "Parse inline source block at point, if any.
2884 When at an inline source block, return a list whose car is
2885 `inline-src-block' and cdr a plist with `:begin', `:end',
2886 `:language', `:value', `:parameters' and `:post-blank' as
2887 keywords. Otherwise, return nil.
2889 Assume point is at the beginning of the inline src block."
2902 :value value
2903 :parameters parameters
2904 :begin begin
2905 :end end
2909 "Interpret INLINE-SRC-BLOCK object as Org syntax.
2910 CONTENTS is nil."
2915 language
2917 body)))
2919 ;;;; Italic
2922 "Parse italic object at point, if any.
2924 When at an italic object, return a list whose car is `italic' and
2925 cdr is a plist with `:begin', `:end', `:contents-begin' and
2926 `:contents-end' and `:post-blank' keywords. Otherwise, return
2927 nil.
2929 Assume point is at the first slash marker."
2941 :end end
2942 :contents-begin contents-begin
2943 :contents-end contents-end
2947 "Interpret ITALIC object as Org syntax.
2948 CONTENTS is the contents of the object."
2952 ;;;; Latex Fragment
2955 "Parse LaTeX fragment at point, if any.
2957 When at a LaTeX fragment, return a list whose car is
2958 `latex-fragment' and cdr a plist with `:value', `:begin', `:end',
2959 and `:post-blank' as keywords. Otherwise, return nil.
2961 Assume point is at the beginning of the LaTeX fragment."
2979 ;; Macro.
2988 :begin begin
2989 :end end
2993 "Interpret LATEX-FRAGMENT object as Org syntax.
2994 CONTENTS is nil."
2997 ;;;; Line Break
3000 "Parse line break at point, if any.
3002 When at a line break, return a list whose car is `line-break',
3003 and cdr a plist with `:begin', `:end' and `:post-blank' keywords.
3004 Otherwise, return nil.
3006 Assume point is at the beginning of the line break."
3015 "Interpret LINE-BREAK object as Org syntax.
3016 CONTENTS is nil."
3020 ;;;; Link
3023 "Parse link at point, if any.
3025 When at a link, return a list whose car is `link' and cdr a plist
3026 with `:type', `:path', `:raw-link', `:application',
3027 `:search-option', `:begin', `:end', `:contents-begin',
3028 `:contents-end' and `:post-blank' as keywords. Otherwise, return
3029 nil.
3031 Assume point is at the beginning of the link."
3034 end contents-begin contents-end link-end post-blank path type
3035 raw-link link search-option application)
3037 ;; Type 1: Text targeted from a radio target.
3046 ;; Type 2: Standard link, i.e. [[http://orgmode.org][homepage]]
3051 ;; RAW-LINK is the original link. Expand any
3052 ;; abbreviation in it.
3053 ;;
3054 ;; Also treat any newline character and associated
3055 ;; indentation as a single space character. This is not
3056 ;; compatible with RFC 3986, which requires to ignore
3057 ;; them altogether. However, doing so would require
3058 ;; users to encode spaces on the fly when writing links
3059 ;; (e.g., insert [[shell:ls%20*.org]] instead of
3060 ;; [[shell:ls *.org]], which defeats Org's focus on
3061 ;; simplicity.
3066 ;; Determine TYPE of link and set PATH accordingly. According
3067 ;; to RFC 3986, remove whitespaces from URI in external links.
3068 ;; In internal ones, treat indentation as a single space.
3070 ;; File type.
3075 ;; Explicit type (http, irc, bbdb...). See `org-link-types'.
3079 ;; Id type: PATH is the id.
3082 ;; Code-ref type: PATH is the name of the reference.
3087 ;; Custom-id type: PATH is the name of the custom id.
3091 ;; Fuzzy type: Internal link either matches a target, an
3092 ;; headline name or nothing. PATH is the target or
3093 ;; headline's name.
3097 ;; Type 3: Plain link, e.g., http://orgmode.org
3103 ;; Type 4: Angular link, e.g., <http://orgmode.org>. Unlike to
3104 ;; bracket links, follow RFC 3986 and remove any extra
3105 ;; whitespace in URI.
3115 ;; In any case, deduce end point after trailing white space from
3116 ;; LINK-END variable.
3121 ;; Special "file" type link processing. Extract opening
3122 ;; application and search option, if any. Also normalize URI.
3129 ;; Translate link, if `org-link-translation-function' is set.
3137 :path path
3139 :application application
3140 :search-option search-option
3141 :begin begin
3142 :end end
3143 :contents-begin contents-begin
3144 :contents-end contents-end
3148 "Interpret LINK object as Org syntax.
3149 CONTENTS is the contents of the object, or nil."
3160 path
3167 ;;;; Macro
3170 "Parse macro at point, if any.
3172 When at a macro, return a list whose car is `macro' and cdr
3173 a plist with `:key', `:args', `:begin', `:end', `:value' and
3174 `:post-blank' as keywords. Otherwise, return nil.
3176 Assume point is at the macro."
3189 :value value
3190 :args args
3191 :begin begin
3192 :end end
3196 "Interpret MACRO object as Org syntax.
3197 CONTENTS is nil."
3201 ;;;; Radio-target
3204 "Parse radio target at point, if any.
3206 When at a radio target, return a list whose car is `radio-target'
3207 and cdr a plist with `:begin', `:end', `:contents-begin',
3208 `:contents-end', `:value' and `:post-blank' as keywords.
3209 Otherwise, return nil.
3211 Assume point is at the radio target."
3223 :end end
3224 :contents-begin contents-begin
3225 :contents-end contents-end
3226 :post-blank post-blank
3230 "Interpret TARGET object as Org syntax.
3231 CONTENTS is the contents of the object."
3235 ;;;; Statistics Cookie
3238 "Parse statistics cookie at point, if any.
3240 When at a statistics cookie, return a list whose car is
3241 `statistics-cookie', and cdr a plist with `:begin', `:end',
3242 `:value' and `:post-blank' keywords. Otherwise, return nil.
3244 Assume point is at the beginning of the statistics-cookie."
3255 :end end
3256 :value value
3260 "Interpret STATISTICS-COOKIE object as Org syntax.
3261 CONTENTS is nil."
3265 ;;;; Strike-Through
3268 "Parse strike-through object at point, if any.
3270 When at a strike-through object, return a list whose car is
3271 `strike-through' and cdr is a plist with `:begin', `:end',
3272 `:contents-begin' and `:contents-end' and `:post-blank' keywords.
3273 Otherwise, return nil.
3275 Assume point is at the first plus sign marker."
3287 :end end
3288 :contents-begin contents-begin
3289 :contents-end contents-end
3293 "Interpret STRIKE-THROUGH object as Org syntax.
3294 CONTENTS is the contents of the object."
3298 ;;;; Subscript
3301 "Parse subscript at point, if any.
3303 When at a subscript object, return a list whose car is
3304 `subscript' and cdr a plist with `:begin', `:end',
3305 `:contents-begin', `:contents-end', `:use-brackets-p' and
3306 `:post-blank' as keywords. Otherwise, return nil.
3308 Assume point is at the underscore."
3322 :end end
3323 :use-brackets-p bracketsp
3324 :contents-begin contents-begin
3325 :contents-end contents-end
3329 "Interpret SUBSCRIPT object as Org syntax.
3330 CONTENTS is the contents of the object."
3333 contents))
3336 ;;;; Superscript
3339 "Parse superscript at point, if any.
3341 When at a superscript object, return a list whose car is
3342 `superscript' and cdr a plist with `:begin', `:end',
3343 `:contents-begin', `:contents-end', `:use-brackets-p' and
3344 `:post-blank' as keywords. Otherwise, return nil.
3346 Assume point is at the caret."
3360 :end end
3361 :use-brackets-p bracketsp
3362 :contents-begin contents-begin
3363 :contents-end contents-end
3367 "Interpret SUPERSCRIPT object as Org syntax.
3368 CONTENTS is the contents of the object."
3371 contents))
3374 ;;;; Table Cell
3377 "Parse table cell at point.
3378 Return a list whose car is `table-cell' and cdr is a plist
3379 containing `:begin', `:end', `:contents-begin', `:contents-end'
3380 and `:post-blank' keywords."
3388 :end end
3389 :contents-begin contents-begin
3390 :contents-end contents-end
3394 "Interpret TABLE-CELL element as Org syntax.
3395 CONTENTS is the contents of the cell, or nil."
3399 ;;;; Target
3402 "Parse target at point, if any.
3404 When at a target, return a list whose car is `target' and cdr
3405 a plist with `:begin', `:end', `:value' and `:post-blank' as
3406 keywords. Otherwise, return nil.
3408 Assume point is at the target."
3418 :end end
3419 :value value
3423 "Interpret TARGET object as Org syntax.
3424 CONTENTS is nil."
3428 ;;;; Timestamp
3439 "Parse time stamp at point, if any.
3441 When at a time stamp, return a list whose car is `timestamp', and
3442 cdr a plist with `:type', `:raw-value', `:year-start',
3443 `:month-start', `:day-start', `:hour-start', `:minute-start',
3444 `:year-end', `:month-end', `:day-end', `:hour-end',
3445 `:minute-end', `:repeater-type', `:repeater-value',
3446 `:repeater-unit', `:warning-type', `:warning-value',
3447 `:warning-unit', `:begin', `:end' and `:post-blank' keywords.
3448 Otherwise, return nil.
3450 Assume point is at the beginning of the timestamp."
3469 date-start)
3480 raw-value)
3482 :repeater-type
3488 :repeater-unit
3497 :warning-unit
3500 year-start month-start day-start hour-start minute-start year-end
3501 month-end day-end hour-end minute-end)
3502 ;; Parse date-start.
3510 ;; Compute date-end. It can be provided directly in time-stamp,
3511 ;; or extracted from time range. Otherwise, it defaults to the
3512 ;; same values as date-start.
3522 :raw-value raw-value
3523 :year-start year-start
3524 :month-start month-start
3525 :day-start day-start
3526 :hour-start hour-start
3527 :minute-start minute-start
3528 :year-end year-end
3529 :month-end month-end
3530 :day-end day-end
3531 :hour-end hour-end
3532 :minute-end minute-end
3533 :begin begin
3534 :end end
3536 repeater-props
3537 warning-props))))))
3540 "Interpret TIMESTAMP object as Org syntax.
3541 CONTENTS is nil."
3560 ;; Build an Org timestamp string from TIME. ACTIVEP is
3561 ;; non-nil when time stamp is active. If WITH-TIME-P is
3562 ;; non-nil, add a time part. HOUR-END and MINUTE-END
3563 ;; specify a time range in the timestamp. REPEAT-STRING is
3564 ;; the repeater string, if any.
3568 org-time-stamp-formats)
3569 time)))
3575 nil nil ts)))
3580 " "
3581 s
3583 ;; Return value.
3584 ts)))
3596 build-ts-string
3615 0
3623 "--"
3636 ;;;; Underline
3639 "Parse underline object at point, if any.
3641 When at an underline object, return a list whose car is
3642 `underline' and cdr is a plist with `:begin', `:end',
3643 `:contents-begin' and `:contents-end' and `:post-blank' keywords.
3644 Otherwise, return nil.
3646 Assume point is at the first underscore marker."
3658 :end end
3659 :contents-begin contents-begin
3660 :contents-end contents-end
3664 "Interpret UNDERLINE object as Org syntax.
3665 CONTENTS is the contents of the object."
3669 ;;;; Verbatim
3672 "Parse verbatim object at point, if any.
3674 When at a verbatim object, return a list whose car is `verbatim'
3675 and cdr is a plist with `:value', `:begin', `:end' and
3676 `:post-blank' keywords. Otherwise, return nil.
3678 Assume point is at the first equal sign marker."
3689 :begin begin
3690 :end end
3694 "Interpret VERBATIM object as Org syntax.
3695 CONTENTS is nil."
3699 \f
3700 ;;; Parsing Element Starting At Point
3701 ;;
3702 ;; `org-element--current-element' is the core function of this section.
3703 ;; It returns the Lisp representation of the element starting at
3704 ;; point.
3705 ;;
3706 ;; `org-element--current-element' makes use of special modes. They
3707 ;; are activated for fixed element chaining (e.g., `plain-list' >
3708 ;; `item') or fixed conditional element chaining (e.g., `headline' >
3709 ;; `section'). Special modes are: `first-section', `item',
3710 ;; `node-property', `section' and `table-row'.
3713 "Parse the element starting at point.
3715 Return value is a list like (TYPE PROPS) where TYPE is the type
3716 of the element and PROPS a plist of properties associated to the
3717 element.
3719 Possible types are defined in `org-element-all-elements'.
3721 LIMIT bounds the search.
3723 Optional argument GRANULARITY determines the depth of the
3724 recursion. Allowed values are `headline', `greater-element',
3725 `element', `object' or nil. When it is broader than `object' (or
3726 nil), secondary values will not be parsed, since they only
3727 contain objects.
3729 Optional argument MODE, when non-nil, can be either
3730 `first-section', `section', `planning', `item', `node-property'
3731 and `table-row'.
3733 If STRUCTURE isn't provided but MODE is set to `item', it will be
3734 computed.
3736 This function assumes point is always at the beginning of the
3737 element it has to parse."
3740 ;; Determine if parsing depth allows for secondary strings
3741 ;; parsing. It only applies to elements referenced in
3742 ;; `org-element-secondary-value-alist'.
3745 ;; Item.
3748 ;; Table Row.
3750 ;; Node Property.
3752 ;; Headline.
3755 ;; Sections (must be checked after headline).
3760 limit)))
3761 ;; Planning.
3764 ;; Property drawer.
3768 ;; When not at bol, point is at the beginning of an item or
3769 ;; a footnote definition: next item is always a paragraph.
3771 ;; Clock.
3773 ;; Inlinetask.
3776 ;; From there, elements can have affiliated keywords.
3779 ;; Jumping over affiliated keywords put point off-limits.
3780 ;; Parse them as regular keywords.
3784 ;; LaTeX Environment.
3787 ;; Drawer and Property Drawer.
3790 ;; Fixed Width
3793 ;; Inline Comments, Blocks, Babel Calls, Dynamic Blocks and
3794 ;; Keywords.
3803 org-element-block-name-alist)))
3818 ;; Footnote Definition.
3821 ;; Horizontal Rule.
3824 ;; Diary Sexp.
3827 ;; Table.
3830 ;; List.
3833 limit affiliated
3835 ;; Default element: Paragraph.
3839 ;; Most elements can have affiliated keywords. When looking for an
3840 ;; element beginning, we want to move before them, as they belong to
3841 ;; that element, and, in the meantime, collect information they give
3842 ;; into appropriate properties. Hence the following function.
3845 "Collect affiliated keywords from point down to LIMIT.
3847 Return a list whose CAR is the position at the first of them and
3848 CDR a plist of keywords and values and move point to the
3849 beginning of the first line after them.
3851 As a special case, if element doesn't start at the beginning of
3852 the line (e.g., a paragraph starting an item), CAR is current
3853 position of point and CDR is nil."
3857 ;; RESTRICT is the list of objects allowed in parsed
3858 ;; keywords value.
3860 output)
3863 ;; Apply translation to RAW-KWD. From there, KWD is
3864 ;; the official keyword.
3866 org-element-keyword-translation-alist))
3867 raw-kwd))
3868 ;; Find main value for any keyword.
3874 ;; PARSEDP is non-nil when keyword should have its
3875 ;; value parsed.
3877 ;; If KWD is a dual keyword, find its secondary
3878 ;; value. Maybe parse it.
3887 ;; Attribute a property name to KWD.
3889 ;; Now set final shape for VALUE.
3895 nil restrict)))
3899 ;; Attributes can always appear on multiple lines.
3902 ;; Eventually store the new value in OUTPUT.
3904 ;; Move to next keyword.
3906 ;; If affiliated keywords are orphaned: move back to first one.
3907 ;; They will be parsed as a paragraph.
3909 ;; Return value.
3913 \f
3914 ;;; The Org Parser
3915 ;;
3916 ;; The two major functions here are `org-element-parse-buffer', which
3917 ;; parses Org syntax inside the current buffer, taking into account
3918 ;; region, narrowing, or even visibility if specified, and
3919 ;; `org-element-parse-secondary-string', which parses objects within
3920 ;; a given string.
3921 ;;
3922 ;; The (almost) almighty `org-element-map' allows to apply a function
3923 ;; on elements or objects matching some type, and accumulate the
3924 ;; resulting values. In an export situation, it also skips unneeded
3925 ;; parts of the parse tree.
3928 "Recursively parse the buffer and return structure.
3929 If narrowing is in effect, only parse the visible part of the
3930 buffer.
3932 Optional argument GRANULARITY determines the depth of the
3933 recursion. It can be set to the following symbols:
3935 `headline' Only parse headlines.
3936 `greater-element' Don't recurse into greater elements excepted
3937 headlines and sections. Thus, elements
3938 parsed are the top-level ones.
3939 `element' Parse everything but objects and plain text.
3940 `object' Parse the complete buffer (default).
3942 When VISIBLE-ONLY is non-nil, don't parse contents of hidden
3943 elements.
3945 An element or an objects is represented as a list with the
3946 pattern (TYPE PROPERTIES CONTENTS), where :
3948 TYPE is a symbol describing the element or object. See
3949 `org-element-all-elements' and `org-element-all-objects' for an
3950 exhaustive list of such symbols. One can retrieve it with
3951 `org-element-type' function.
3953 PROPERTIES is the list of attributes attached to the element or
3954 object, as a plist. Although most of them are specific to the
3955 element or object type, all types share `:begin', `:end',
3956 `:post-blank' and `:parent' properties, which respectively
3957 refer to buffer position where the element or object starts,
3958 ends, the number of white spaces or blank lines after it, and
3959 the element or object containing it. Properties values can be
3960 obtained by using `org-element-property' function.
3962 CONTENTS is a list of elements, objects or raw strings
3963 contained in the current element or object, when applicable.
3964 One can access them with `org-element-contents' function.
3966 The Org buffer has `org-data' as type and nil as properties.
3967 `org-element-map' function can be used to find specific elements
3968 or objects within the parse tree.
3970 This function assumes that current major mode is `org-mode'."
3976 ;; Start in `first-section' mode so text before the first
3977 ;; headline belongs to a section.
3981 "Recursively parse objects in STRING and return structure.
3983 RESTRICTION is a symbol limiting the object types that will be
3984 looked after.
3986 Optional argument PARENT, when non-nil, is the element or object
3987 containing the secondary string. It is used to set correctly
3988 `:parent' property within the string.
3990 If STRING is the empty string or nil, return nil."
4006 data))))))
4010 "Map a function on selected elements or objects.
4012 DATA is a parse tree, an element, an object, a string, or a list
4013 of such constructs. TYPES is a symbol or list of symbols of
4014 elements or objects types (see `org-element-all-elements' and
4015 `org-element-all-objects' for a complete list of types). FUN is
4016 the function called on the matching element or object. It has to
4017 accept one argument: the element or object itself.
4019 When optional argument INFO is non-nil, it should be a plist
4020 holding export options. In that case, parts of the parse tree
4021 not exportable according to that property list will be skipped.
4023 When optional argument FIRST-MATCH is non-nil, stop at the first
4024 match for which FUN doesn't return nil, and return that value.
4026 Optional argument NO-RECURSION is a symbol or a list of symbols
4027 representing elements or objects types. `org-element-map' won't
4028 enter any recursive element or object whose type belongs to that
4029 list. Though, FUN can still be applied on them.
4031 When optional argument WITH-AFFILIATED is non-nil, FUN will also
4032 apply to matching objects within parsed affiliated keywords (see
4033 `org-element-parsed-keywords').
4035 Nil values returned from FUN do not appear in the results.
4038 Examples:
4039 ---------
4041 Assuming TREE is a variable containing an Org buffer parse tree,
4042 the following example will return a flat list of all `src-block'
4043 and `example-block' elements in it:
4045 \(org-element-map tree '(example-block src-block) #'identity)
4047 The following snippet will find the first headline with a level
4050 \(org-element-map tree 'headline
4051 \(lambda (hl)
4052 \(and (= (org-element-property :level hl) 1)
4054 \(org-element-property :begin hl)))
4055 nil t)
4057 The next example will return a flat list of all `plain-list' type
4058 elements in TREE that are not a sub-list themselves:
4060 \(org-element-map tree 'plain-list #'identity nil nil 'plain-list)
4062 Eventually, this example will return a flat list of all `bold'
4063 type objects containing a `latex-snippet' type object, even
4064 looking into captions:
4066 \(org-element-map tree 'bold
4067 \(lambda (b)
4068 \(and (org-element-map b 'latex-snippet #'identity nil t) b))
4069 nil nil nil t)"
4070 ;; Ensure TYPES and NO-RECURSION are a list, even of one element.
4074 ;; Recursion depth is determined by --CATEGORY.
4081 ;; If one object is found, the function has to
4082 ;; recurse into every object.
4085 ;; If one regular element is found, the
4086 ;; function has to recurse, at least, into
4087 ;; every element it encounters.
4090 --acc
4091 --walk-tree
4094 ;; Recursively walk DATA. INFO, if non-nil, is a plist
4095 ;; holding contextual information.
4099 ;; Ignored element in an export context.
4101 ;; List of elements or objects.
4103 ;; Unconditionally enter parse trees.
4107 ;; Check if TYPE is matching among TYPES. If so,
4108 ;; apply FUN to --DATA and accumulate return value
4109 ;; into --ACC (or exit if FIRST-MATCH is non-nil).
4115 ;; If --DATA has a secondary string that can contain
4116 ;; objects with their type among TYPES, look into it.
4119 org-element-secondary-value-alist)))
4121 ;; If --DATA has any parsed affiliated keywords and
4122 ;; WITH-AFFILIATED is non-nil, look for objects in
4123 ;; them.
4130 ;; Pay attention to the type of parsed keyword.
4131 ;; In particular, preserve order for multiple
4132 ;; keywords.
4145 ;; Determine if a recursion into --DATA is possible.
4147 ;; --TYPE is explicitly removed from recursion.
4149 ;; --DATA has no contents.
4151 ;; Looking for greater elements but --DATA is simply
4152 ;; an element or an object.
4155 ;; Looking for elements but --DATA is an object.
4158 ;; In any other case, map contents.
4162 ;; Return value in a proper order.
4166 ;; The following functions are internal parts of the parser.
4167 ;;
4168 ;; The first one, `org-element--parse-elements' acts at the element's
4169 ;; level.
4170 ;;
4171 ;; The second one, `org-element--parse-objects' applies on all objects
4172 ;; of a paragraph or a secondary string. It calls
4173 ;; `org-element--object-lex' to find the next object in the current
4174 ;; container.
4177 "Return next special mode according to TYPE, or nil.
4178 TYPE is a symbol representing the type of an element or object
4179 containing next element if PARENTP is non-nil, or before it
4180 otherwise. Modes can be either `first-section', `item',
4181 `node-property', `planning', `property-drawer', `section',
4182 `table-row' or nil."
4198 "Parse elements between BEG and END positions.
4200 MODE prioritizes some elements over the others. It can be set to
4201 `first-section', `section', `planning', `item', `node-property'
4202 or `table-row'.
4204 When value is `item', STRUCTURE will be used as the current list
4205 structure.
4207 GRANULARITY determines the depth of the recursion. See
4208 `org-element-parse-buffer' for more information.
4210 When VISIBLE-ONLY is non-nil, don't parse contents of hidden
4211 elements.
4213 Elements are accumulated into ACC."
4216 ;; Visible only: skip invisible parts at the beginning of the
4217 ;; element.
4220 ;; When parsing only headlines, skip any text before first one.
4223 ;; Main loop start.
4225 ;; Find current element's type and parse it accordingly to
4226 ;; its category.
4228 end granularity mode structure))
4232 ;; Visible only: skip invisible parts between siblings.
4235 ;; Fill ELEMENT contents by side-effect.
4237 ;; If element has no contents, don't modify it.
4239 ;; Greater element: parse it between `contents-begin' and
4240 ;; `contents-end'. Make sure GRANULARITY allows the
4241 ;; recursion, or ELEMENT is a headline, in which case going
4242 ;; inside is mandatory, in order to get sub-level headings.
4250 ;; Possibly switch to a special mode.
4254 granularity visible-only element))
4255 ;; ELEMENT has contents. Parse objects inside, if
4256 ;; GRANULARITY allows it.
4262 ;; Update mode.
4264 ;; Return result.
4265 acc))
4268 "Return next object in current buffer or nil.
4269 RESTRICTION is a list of object types, as symbols, that should be
4270 looked after. This function assumes that the buffer is narrowed
4271 to an appropriate container (e.g., a paragraph)."
4279 found)
4344 ;; This is probably a plain link.
4350 ;; Radio link.
4355 "Parse objects between BEG and END and return recursive structure.
4357 Objects are accumulated in ACC.
4359 RESTRICTION is a list of object successors which are allowed in
4360 the current object."
4368 ;; 1. Text before any object. Untabify it.
4373 acc
4377 ;; 2. Object...
4380 ;; Fill contents of NEXT-OBJECT by side-effect, if it has
4381 ;; a recursive type.
4389 ;; 3. Text after last object. Untabify it.
4393 acc
4397 ;; Result.
4398 acc)))
4401 \f
4402 ;;; Towards A Bijective Process
4403 ;;
4404 ;; The parse tree obtained with `org-element-parse-buffer' is really
4405 ;; a snapshot of the corresponding Org buffer. Therefore, it can be
4406 ;; interpreted and expanded into a string with canonical Org syntax.
4407 ;; Hence `org-element-interpret-data'.
4408 ;;
4409 ;; The function relies internally on
4410 ;; `org-element--interpret-affiliated-keywords'.
4412 ;;;###autoload
4414 "Interpret DATA as Org syntax.
4415 DATA is a parse tree, an element, an object or a secondary string
4416 to interpret. Return Org syntax as a string."
4420 "Interpret DATA as Org syntax.
4422 DATA is a parse tree, an element, an object or a secondary string
4423 to interpret. PARENT is used for recursive calls. It contains
4424 the element or object containing data, or nil.
4426 Return Org syntax as a string."
4428 ;; Find interpreter for current object or element. If it
4429 ;; doesn't exist (e.g. this is a pseudo object or element),
4430 ;; return contents, if any.
4436 ;; Secondary string.
4440 ;; Full Org document.
4444 ;; Plain text: return it.
4446 ;; Element or object without contents.
4448 ;; Element or object with contents.
4451 ;; Recursively interpret contents.
4456 data
4457 ;; Fix indentation of elements containing
4458 ;; objects. We ignore `table-row' elements
4459 ;; as they are one line long anyway.
4461 data
4462 ;; When normalizing first paragraph of an
4463 ;; item or a footnote-definition, ignore
4464 ;; first line's indentation.
4471 ;; Build white spaces. If no `:post-blank' property is
4472 ;; specified, assume its value is 0.
4486 "Return ELEMENT's affiliated keywords as Org syntax.
4487 If there is no affiliated keyword, return the empty string."
4497 ": "
4500 value)
4508 ;; All attribute keywords can have multiple lines.
4514 ;; List all ELEMENT's properties matching an attribute line or an
4515 ;; affiliated keyword, but ignore translated keywords since they
4516 ;; cannot belong to the property list.
4523 org-element-keyword-translation-alist)))))
4524 collect prop)
4527 ;; Because interpretation of the parse tree must return the same
4528 ;; number of blank lines between elements and the same number of white
4529 ;; space after objects, some special care must be given to white
4530 ;; spaces.
4531 ;;
4532 ;; The first function, `org-element-normalize-string', ensures any
4533 ;; string different from the empty string will end with a single
4534 ;; newline character.
4535 ;;
4536 ;; The second function, `org-element-normalize-contents', removes
4537 ;; global indentation from the contents of the current element.
4540 "Ensure string S ends with a single newline character.
4542 If S isn't a string return it unchanged. If S is the empty
4543 string, return it. Otherwise, return a new string with a single
4544 newline character at its end."
4552 "Normalize plain text in ELEMENT's contents.
4554 ELEMENT must only contain plain text and objects.
4556 If optional argument IGNORE-FIRST is non-nil, ignore first line's
4557 indentation to compute maximal common indentation.
4559 Return the normalized element that is element with global
4560 indentation removed from its contents. The function assumes that
4561 indentation is not done with TAB characters."
4563 find-min-ind ; For byte-compiler.
4565 ;; Return minimal common indentation within BLOB. This is
4566 ;; done by walking recursively BLOB and updating MIN-IND
4567 ;; along the way. FIRST-FLAG is non-nil when the next
4568 ;; object is expected to be a string that doesn't start with
4569 ;; a newline character. It happens for strings at the
4570 ;; beginnings of the contents or right after a line break.
4575 ;; Objects cannot start with spaces: in this case,
4576 ;; indentation is 0.
4580 ;; An indentation of zero means no string will be
4581 ;; modified. Quit the process.
4592 ;; Find minimal indentation in ELEMENT.
4595 ;; Build ELEMENT back, replacing each string with the same
4596 ;; string minus common indentation.
4600 ;; Return BLOB with all its strings indentation
4601 ;; shortened from MIN-IND white spaces. FIRST-FLAG is
4602 ;; non-nil when the next object is expected to be
4603 ;; a string that doesn't start with a newline
4604 ;; character.
4620 org-element-recursive-objects)
4624 object)
4627 blob)))
4631 \f
4632 ;;; Cache
4633 ;;
4634 ;; Implement a caching mechanism for `org-element-at-point' and
4635 ;; `org-element-context', which see.
4636 ;;
4637 ;; A single public function is provided: `org-element-cache-reset'.
4638 ;;
4639 ;; Cache is enabled by default, but can be disabled globally with
4640 ;; `org-element-use-cache'. `org-element-cache-sync-idle-time',
4641 ;; org-element-cache-sync-duration' and `org-element-cache-sync-break'
4642 ;; can be tweaked to control caching behaviour.
4643 ;;
4644 ;; Internally, parsed elements are stored in an AVL tree,
4645 ;; `org-element--cache'. This tree is updated lazily: whenever
4646 ;; a change happens to the buffer, a synchronization request is
4647 ;; registered in `org-element--cache-sync-requests' (see
4648 ;; `org-element--cache-submit-request'). During idle time, requests
4649 ;; are processed by `org-element--cache-sync'. Synchronization also
4650 ;; happens when an element is required from the cache. In this case,
4651 ;; the process stops as soon as the needed element is up-to-date.
4652 ;;
4653 ;; A synchronization request can only apply on a synchronized part of
4654 ;; the cache. Therefore, the cache is updated at least to the
4655 ;; location where the new request applies. Thus, requests are ordered
4656 ;; from left to right and all elements starting before the first
4657 ;; request are correct. This property is used by functions like
4658 ;; `org-element--cache-find' to retrieve elements in the part of the
4659 ;; cache that can be trusted.
4660 ;;
4661 ;; A request applies to every element, starting from its original
4662 ;; location (or key, see below). When a request is processed, it
4663 ;; moves forward and may collide the next one. In this case, both
4664 ;; requests are merged into a new one that starts from that element.
4665 ;; As a consequence, the whole synchronization complexity does not
4666 ;; depend on the number of pending requests, but on the number of
4667 ;; elements the very first request will be applied on.
4668 ;;
4669 ;; Elements cannot be accessed through their beginning position, which
4670 ;; may or may not be up-to-date. Instead, each element in the tree is
4671 ;; associated to a key, obtained with `org-element--cache-key'. This
4672 ;; mechanism is robust enough to preserve total order among elements
4673 ;; even when the tree is only partially synchronized.
4674 ;;
4675 ;; Objects contained in an element are stored in a hash table,
4676 ;; `org-element--cache-objects'.
4680 "Non nil when Org parser should cache its results.
4687 "Maximum duration, as a time value, for a cache synchronization.
4688 If the synchronization is not over after this delay, the process
4689 pauses and resumes after `org-element-cache-sync-break'
4693 "Duration, as a time value, of the pause between synchronizations.
4697 ;;;; Data Structure
4700 "AVL tree used to cache elements.
4701 Each node of the tree contains an element. Comparison is done
4702 with `org-element--cache-compare'. This cache is used in
4706 "Hash table used as to cache objects.
4707 Key is an element, as returned by `org-element-at-point', and
4708 value is an alist where each association is:
4710 \(PARENT COMPLETEP . OBJECTS)
4712 where PARENT is an element or object, COMPLETEP is a boolean,
4713 non-nil when all direct children of parent are already cached and
4714 OBJECTS is a list of such children, as objects, from farthest to
4715 closest.
4718 contained within a paragraph
4722 If the paragraph is completely parsed, OBJECTS-DATA will be
4724 \((PARAGRAPH t BOLD-OBJECT ENTITY-OBJECT)
4725 \(BOLD-OBJECT t ENTITY-OBJECT))
4727 whereas in a partially parsed paragraph, it could be
4729 \((PARAGRAPH nil ENTITY-OBJECT))
4734 "List of pending synchronization requests.
4736 A request is a vector with the following pattern:
4738 \[NEXT BEG END OFFSET PARENT PHASE]
4740 Processing a synchronization request consists of three phases:
4742 0. Delete modified elements,
4743 1. Fill missing area in cache,
4744 2. Shift positions and re-parent elements after the changes.
4746 During phase 0, NEXT is the key of the first element to be
4747 removed, BEG and END is buffer position delimiting the
4748 modifications. Elements starting between them (inclusive) are
4749 removed. So are elements whose parent is removed. PARENT, when
4750 non-nil, is the parent of the first element to be removed.
4752 During phase 1, NEXT is the key of the next known element in
4753 cache and BEG its beginning position. Parse buffer between that
4754 element and the one before it in order to determine the parent of
4755 the next element. Set PARENT to the element containing NEXT.
4757 During phase 2, NEXT is the key of the next element to shift in
4758 the parse tree. All elements starting from this one have their
4759 properties relatives to buffer positions shifted by integer
4760 OFFSET and, if they belong to element PARENT, are adopted by it.
4768 "Hash table used to store keys during synchronization.
4772 "Return a unique key for ELEMENT in cache tree.
4774 Keys are used to keep a total order among elements in the cache.
4775 Comparison is done with `org-element--cache-key-less-p'.
4777 When no synchronization is taking place, a key is simply the
4778 beginning position of the element, or that position plus one in
4779 the case of an first item (respectively row) in
4780 a list (respectively a table).
4782 During a synchronization, the key is the one the element had when
4783 the cache was synchronized for the last time. Elements added to
4784 cache during the synchronization get a new key generated with
4785 `org-element--cache-generate-key'.
4787 Such keys are stored in `org-element--cache-sync-keys'. The hash
4788 table is cleared once the synchronization is complete."
4791 ;; Increase beginning position of items (respectively
4792 ;; table rows) by one, so the first item can get
4793 ;; a different key from its parent list (respectively
4794 ;; table).
4797 begin)))
4800 key))))
4803 "Generate a key between LOWER and UPPER.
4805 LOWER and UPPER are integers or lists, possibly empty.
4807 If LOWER and UPPER are equals, return LOWER. Otherwise, return
4808 a unique key, as an integer or a list of integers, according to
4809 the following rules:
4811 - LOWER and UPPER are compared level-wise until values differ.
4813 - If, at a given level, LOWER and UPPER differ from more than
4814 2, the new key shares all the levels above with LOWER and
4815 gets a new level. Its value is the mean between LOWER and
4816 UPPER:
4818 \(1 2) + (1 4) --> (1 3)
4820 - If LOWER has no value to compare with, it is assumed that its
4821 value is `most-negative-fixnum'. E.g.,
4823 \(1 1) + (1 1 2)
4825 is equivalent to
4827 \(1 1 m) + (1 1 2)
4829 where m is `most-negative-fixnum'. Likewise, if UPPER is
4830 short of levels, the current value is `most-positive-fixnum'.
4832 - If they differ from only one, the new key inherits from
4833 current LOWER level and fork it at the next level. E.g.,
4835 \(2 1) + (3 3)
4837 is equivalent to
4839 \(2 1) + (2 M)
4841 where M is `most-positive-fixnum'.
4843 - If the key is only one level long, it is returned as an
4844 integer:
4846 \(1 2) + (3 2) --> 2
4848 When they are not equals, the function assumes that LOWER is
4849 lesser than UPPER, per `org-element--cache-key-less-p'."
4853 skip-upper key)
4864 ;; When at a given level, LOWER and UPPER differ from
4865 ;; 1, ignore UPPER altogether. Instead create a key
4866 ;; between LOWER and the greatest key with the same
4867 ;; prefix as LOWER so far.
4873 "Non-nil if key A is less than key B.
4874 A and B are either integers or lists of integers, as returned by
4875 `org-element--cache-key'."
4883 ;; If A is empty, either keys are equal (B is also empty) and
4884 ;; we return nil, or A is lesser than B (B is longer) and we
4885 ;; return a non-nil value.
4886 ;;
4887 ;; If A is not empty, B is necessarily empty and A is greater
4888 ;; than B (A is longer). Therefore, return nil.
4892 "Non-nil when element A is located before element B."
4897 "Return root value in cache.
4898 This function assumes `org-element--cache' is a valid AVL tree."
4902 ;;;; Tools
4905 "Non-nil when cache is active in current buffer."
4907 org-element--cache
4911 "Find element in cache starting at POS or before.
4913 POS refers to a buffer position.
4915 When optional argument SIDE is non-nil, the function checks for
4916 elements starting at or past POS instead. If SIDE is `both', the
4917 function returns a cons cell where car is the first element
4918 starting at or before POS and cdr the first element starting
4919 after POS.
4921 The function can only find elements in the synchronized part of
4922 the cache."
4926 lower upper)
4941 ;; We found an element in cache starting at POS. If `side'
4942 ;; is `both' we also want the next one in order to generate
4943 ;; a key in-between.
4944 ;;
4945 ;; If the element is the first row or item in a table or
4946 ;; a plain list, we always return the table or the plain
4947 ;; list.
4948 ;;
4949 ;; In any other case, we return the element found.
4958 lower parent
4959 upper parent)))))
4962 lower element
4963 upper element)))))
4970 "Store ELEMENT in current buffer's cache, if allowed.
4971 When optional argument DATA is non-nil, assume is it object data
4972 relative to ELEMENT and store it in the objects cache."
4976 ;; During synchronization, first build an appropriate key
4977 ;; for the new element so `avl-tree-enter' can insert it at
4978 ;; the right spot in the cache.
4987 org-element--cache-sync-keys)))
4989 ;; Headlines are not stored in cache, so objects in titles are
4990 ;; not stored either.
4995 "Remove ELEMENT from cache.
4996 Assume ELEMENT belongs to cache and that a cache is active."
5001 ;;;; Synchronization
5004 "Set idle timer for cache synchronization in BUFFER."
5011 org-element-cache-sync-idle-time))
5012 nil
5013 #'org-element--cache-sync
5014 buffer)))
5017 "Non-nil when synchronization process should be interrupted.
5018 TIME-LIMIT is a time value or nil."
5024 "Shift ELEMENT properties relative to buffer positions by OFFSET.
5026 Properties containing buffer positions are `:begin', `:end',
5027 `:contents-begin', `:contents-end' and `:structure'. When
5028 optional argument PROPS is a list of keywords, only shift
5029 properties provided in that list.
5031 Properties are modified by side-effect."
5033 ;; Shift `:structure' property for the first plain list only: it
5034 ;; is the only one that really matters and it prevents from
5035 ;; shifting it more than once.
5049 "Synchronize cache with recent modification in BUFFER.
5051 When optional argument THRESHOLD is non-nil, do the
5052 synchronization for all elements starting before or at threshold,
5053 then exit. Otherwise, synchronize cache for as long as
5054 `org-element-cache-sync-duration' or until Emacs leaves idle
5055 state.
5057 FUTURE-CHANGE, when non-nil, is a buffer position where changes
5058 not registered yet in the cache are going to happen. It is used
5059 in `org-element--cache-submit-request', where cache is partially
5060 updated before current modification are actually submitted."
5071 request
5073 threshold
5076 org-element-cache-sync-duration))
5077 future-change)
5078 ;; Request processed. Merge current and next offsets and
5079 ;; transfer ending position.
5085 ;; If more requests are awaiting, set idle timer accordingly.
5086 ;; Otherwise, reset keys.
5093 "Process synchronization REQUEST for all entries before NEXT.
5095 REQUEST is a vector, built by `org-element--cache-submit-request'.
5097 NEXT is a cache key, as returned by `org-element--cache-key'.
5099 When non-nil, THRESHOLD is a buffer position. Synchronization
5100 stops as soon as a shifted element begins after it.
5102 When non-nil, TIME-LIMIT is a time value. Synchronization stops
5103 after this time or when Emacs exits idle state.
5105 When non-nil, FUTURE-CHANGE is a buffer position where changes
5106 not registered yet in the cache are going to happen. See
5107 `org-element--cache-submit-request' for more information.
5109 Throw `interrupt' if the process stops before completing the
5110 request."
5113 ;; Phase 0.
5114 ;;
5115 ;; Delete all elements starting after BEG, but not after buffer
5116 ;; position END or past element with key NEXT. Also delete
5117 ;; elements contained within a previously removed element
5118 ;; (stored in `last-container').
5119 ;;
5120 ;; At each iteration, we start again at tree root since
5121 ;; a deletion modifies structure of the balanced tree.
5126 ;; Find first element in cache with key BEG or after it.
5130 data data-key last-container)
5139 data-key key
5142 data-key key
5143 node nil)))))
5153 up)))
5156 end))
5163 ;; No element starting after modifications left in
5164 ;; cache: further processing is futile.
5167 ;; Phase 1.
5168 ;;
5169 ;; Phase 0 left a hole in the cache. Some elements after it
5170 ;; could have parents within. For example, in the following
5171 ;; buffer:
5172 ;;
5173 ;; - item
5174 ;;
5175 ;;
5176 ;; Paragraph1
5177 ;;
5178 ;; Paragraph2
5179 ;;
5180 ;; if we remove a blank line between "item" and "Paragraph1",
5181 ;; everything down to "Paragraph2" is removed from cache. But
5182 ;; the paragraph now belongs to the list, and its `:parent'
5183 ;; property no longer is accurate.
5184 ;;
5185 ;; Therefore we need to parse again elements in the hole, or at
5186 ;; least in its last section, so that we can re-parent
5187 ;; subsequent elements, during phase 2.
5188 ;;
5189 ;; Note that we only need to get the parent from the first
5190 ;; element in cache after the hole.
5191 ;;
5192 ;; When next key is lesser or equal to the current one, delegate
5193 ;; phase 1 processing to next request in order to preserve key
5194 ;; order among requests.
5202 ;; Next element will start at its beginning position plus
5203 ;; offset, since it hasn't been shifted yet. Therefore, LIMIT
5204 ;; contains the real beginning position of the first element to
5205 ;; shift and re-parent.
5209 ;; Changes are going to happen around this element and
5210 ;; they will trigger another phase 1 request. Skip the
5211 ;; current one.
5217 ;; Phase 2.
5218 ;;
5219 ;; Shift all elements starting from key START, but before NEXT, by
5220 ;; OFFSET, and re-parent them when appropriate.
5221 ;;
5222 ;; Elements are modified by side-effect so the tree structure
5223 ;; remains intact.
5224 ;;
5225 ;; Once THRESHOLD, if any, is reached, or once there is an input
5226 ;; pending, exit. Before leaving, the current synchronization
5227 ;; request is updated.
5234 exit-flag)
5235 ;; No re-parenting nor shifting planned: request is over.
5245 ;; We reached NEXT. Request is complete.
5247 ;; Handle interruption request. Update current request.
5252 ;; Shift element.
5255 ;; Shift associated objects data, if any.
5260 ;; Update PARENT and re-parent DATA, only when
5261 ;; necessary. Propagate new structures for lists.
5275 ;; Cache is up-to-date past THRESHOLD. Request
5276 ;; interruption.
5281 ;; We reached end of tree: synchronization complete.
5282 t)))
5285 "Parse elements in current section, down to POS.
5287 Start parsing from the closest between the last known element in
5288 cache or headline above. Return the smallest element containing
5289 POS.
5291 When optional argument SYNCP is non-nil, return the parent of the
5292 element containing POS instead. In that case, it is also
5293 possible to provide TIME-LIMIT, which is a time value specifying
5294 when the parsing should stop. The function throws `interrupt' if
5295 the process stopped before finding the expected result."
5302 element next mode)
5304 ;; Nothing in cache before point: start parsing from first
5305 ;; element following headline above, or first element in
5306 ;; buffer.
5313 ;; Cache returned exact match: return it.
5316 ;; There's a headline between cached value and POS: cached
5317 ;; value is invalid. Start parsing from first element
5318 ;; following the headline.
5325 ;; Check if CACHED or any of its ancestors contain point.
5326 ;;
5327 ;; If there is such an element, we inspect it in order to know
5328 ;; if we return it or if we need to parse its contents.
5329 ;; Otherwise, we just start parsing from current location,
5330 ;; which is right after the top-most element containing
5331 ;; CACHED.
5332 ;;
5333 ;; As a special case, if POS is at the end of the buffer, we
5334 ;; want to return the innermost element ending there.
5335 ;;
5336 ;; Also, if we find an ancestor and discover that we need to
5337 ;; parse its contents, make sure we don't start from
5338 ;; `:contents-begin', as we would otherwise go past CACHED
5339 ;; again. Instead, in that situation, we will resume parsing
5340 ;; from NEXT, which is located after CACHED or its higher
5341 ;; ancestor not containing point.
5353 ;; Parse successively each element until we reach POS.
5366 end 'element mode
5373 ;; Skip any element ending before point. Also skip
5374 ;; element ending at point (unless it is also the end of
5375 ;; buffer) since we're sure that another element begins
5376 ;; after it.
5380 ;; A non-greater element contains point: return it.
5383 ;; Otherwise, we have to decide if ELEMENT really
5384 ;; contains POS. In that case we start parsing from
5385 ;; contents' beginning.
5386 ;;
5387 ;; If POS is at contents' beginning but it is also at
5388 ;; the beginning of the first item in a list or a table.
5389 ;; In that case, we need to create an anchor for that
5390 ;; list or table, so return it.
5391 ;;
5392 ;; Also, if POS is at the end of the buffer, no element
5393 ;; can start after it, but more than one may end there.
5394 ;; Arbitrarily, we choose to return the innermost of
5395 ;; such elements.
5408 parent element
5409 end cend))))
5410 ;; Otherwise, return ELEMENT as it is the smallest
5411 ;; element containing POS.
5416 ;;;; Staging Buffer Changes
5427 "Regexp matching a sensitive line, structure wise.
5428 A sensitive line is a headline, inlinetask, block, drawer, or
5429 latex-environment boundary. When such a line is modified,
5430 structure changes in the document may propagate in the whole
5434 "Non-nil when a sensitive line is about to be changed.
5438 "Request extension of area going to be modified if needed.
5439 BEG and END are the beginning and end of the range of changed
5440 text. See `before-change-functions' for more information."
5450 'headline
5453 org-element--cache-sensitive-re bottom t)))))))))
5456 "Update buffer modifications for current buffer.
5457 BEG and END are the beginning and end of the range of changed
5458 text, and the length in bytes of the pre-change text replaced by
5459 that range. See `after-change-functions' for more information."
5467 ;; Determine if modified area needs to be extended, according
5468 ;; to both previous and current state. We make a special
5469 ;; case for headline editing: if a headline is modified but
5470 ;; not removed, do not extend.
5479 org-element--cache-sensitive-re bottom t))))
5480 ;; Effectively extend modified area.
5488 ;; Store synchronization request.
5491 ;; Activate a timer to process the request during idle time.
5495 "Return first element to remove from cache.
5497 BEG and END are buffer positions delimiting buffer modifications.
5498 OFFSET is the size of the changes.
5500 Returned element is usually the first element in cache containing
5501 any position between BEG and END. As an exception, greater
5502 elements around the changes that are robust to contents
5503 modifications are preserved and updated according to the
5504 changes."
5514 special-block))
5515 ;; Drawers named "PROPERTIES" are probably
5516 ;; a properties drawer being edited. Force
5517 ;; parsing to check if editing is over.
5526 ;; UP is a robust greater element containing changes.
5527 ;; We only need to extend its ending boundaries.
5533 ;; We're at top level element containing ELEMENT: if it's
5534 ;; altered by buffer modifications, it is first element in
5535 ;; cache to be removed. Otherwise, that first element is the
5536 ;; following one.
5537 ;;
5538 ;; As a special case, do not remove BEFORE if it is a robust
5539 ;; container for current changes.
5541 before)))))
5544 "Submit a new cache synchronization request for current buffer.
5545 BEG and END are buffer positions delimiting the minimal area
5546 where cache data should be removed. OFFSET is the size of the
5547 change, as an integer."
5549 delete-to delete-from)
5554 ;; Current changes can be merged with first sync request: we
5555 ;; can save a partial cache synchronization.
5558 ;; If last change happened within area to be removed, extend
5559 ;; boundaries of robust parents, if any. Otherwise, find
5560 ;; first element to remove and update request accordingly.
5572 ;; Ensure cache is correct up to END. Also make sure that NEXT,
5573 ;; if any, is no longer a 0-phase request, thus ensuring that
5574 ;; phases are properly ordered. We need to provide OFFSET as
5575 ;; optional parameter since current modifications are not known
5576 ;; yet to the otherwise correct part of the cache (i.e, before
5577 ;; the first request).
5584 ;; When changes happen before the first known
5585 ;; element, re-parent and shift the rest of the
5586 ;; cache.
5588 ;; Otherwise, we find the first non robust
5589 ;; element containing END. All elements between
5590 ;; FIRST and this one are to be removed.
5601 element up))
5603 org-element--cache-sync-requests)
5604 ;; No element to remove. No need to re-parent either.
5605 ;; Simply shift additional elements, if any, by OFFSET.
5610 ;;;; Public Functions
5612 ;;;###autoload
5614 "Reset cache in current buffer.
5615 When optional argument ALL is non-nil, reset cache in all Org
5616 buffers."
5635 ;;;###autoload
5637 "Refresh cache at position POS."
5644 \f
5645 ;;; The Toolbox
5646 ;;
5647 ;; The first move is to implement a way to obtain the smallest element
5648 ;; containing point. This is the job of `org-element-at-point'. It
5649 ;; basically jumps back to the beginning of section containing point
5650 ;; and proceed, one element after the other, with
5651 ;; `org-element--current-element' until the container is found. Note:
5652 ;; When using `org-element-at-point', secondary values are never
5653 ;; parsed since the function focuses on elements, not on objects.
5654 ;;
5655 ;; At a deeper level, `org-element-context' lists all elements and
5656 ;; objects containing point.
5657 ;;
5658 ;; `org-element-nested-p' and `org-element-swap-A-B' may be used
5659 ;; internally by navigation and manipulation tools.
5662 ;;;###autoload
5664 "Determine closest element around point.
5666 Return value is a list like (TYPE PROPS) where TYPE is the type
5667 of the element and PROPS a plist of properties associated to the
5668 element.
5670 Possible types are defined in `org-element-all-elements'.
5671 Properties depend on element or object type, but always include
5672 `:begin', `:end', `:parent' and `:post-blank' properties.
5674 As a special case, if point is at the very beginning of the first
5675 item in a list or sub-list, returned element will be that list
5676 instead of the item. Likewise, if point is at the beginning of
5677 the first row of a table, returned element will be the table
5678 instead of the first row.
5680 When point is at the end of the buffer, return the innermost
5681 element ending there."
5687 ;; Within blank lines at the beginning of buffer, return nil.
5689 ;; Within blank lines right after a headline, return that
5690 ;; headline.
5694 ;; Otherwise parse until we find element containing ORIGIN.
5701 ;;;###autoload
5703 "Return smallest element or object around point.
5705 Return value is a list like (TYPE PROPS) where TYPE is the type
5706 of the element or object and PROPS a plist of properties
5707 associated to it.
5709 Possible types are defined in `org-element-all-elements' and
5710 `org-element-all-objects'. Properties depend on element or
5711 object type, but always include `:begin', `:end', `:parent' and
5712 `:post-blank'.
5714 As a special case, if point is right after an object and not at
5715 the beginning of any other object, return that object.
5717 Optional argument ELEMENT, when non-nil, is the closest element
5718 containing point, as returned by `org-element-at-point'.
5719 Providing it allows for quicker computation."
5725 ;; If point is inside an element containing objects or
5726 ;; a secondary string, narrow buffer to the container and
5727 ;; proceed with parsing. Otherwise, return ELEMENT.
5729 ;; At a parsed affiliated keyword, check if we're inside main
5730 ;; or dual value.
5737 org-element-parsed-keywords))
5746 ;; Also change type to retrieve correct restrictions.
5748 ;; At an item, objects can only be located within tag, if any.
5758 ;; At an headline or inlinetask, objects are in title.
5765 ;; At a paragraph, a table-row or a verse block, objects are
5766 ;; located within their contents.
5770 ;; CBEG is nil for table rules.
5775 ;; At a planning line, if point is at a timestamp, return it,
5776 ;; otherwise, return element.
5784 ;; All other locations cannot contain objects: bail out.
5794 next object-data last)
5798 ;; When entering PARENT for the first time, get list
5799 ;; of objects within known so far. Store it in
5800 ;; OBJECT-DATA.
5805 ;; Find NEXT object for analysis.
5807 ;; If NEXT is non-nil, we already exhausted the
5808 ;; cache so we can parse buffer to find the object
5809 ;; after it.
5811 ;; Otherwise, check if cache can help us.
5822 ;; Cache contains the information needed.
5825 pos)
5827 pos)
5833 ;; If we have a new object to analyze, store it in
5834 ;; cache. Otherwise record that there is nothing
5835 ;; more to parse in this element at this depth.
5840 ;; Process NEXT, if any, in order to know if we need
5841 ;; to skip it, return it or move into it.
5848 ;; Skip objects ending before point. Also skip
5849 ;; objects ending at point unless it is also the
5850 ;; end of buffer, since we want to return the
5851 ;; innermost object.
5854 ;; For convenience, when object ends at POS,
5855 ;; without any space, store it in LAST, as we
5856 ;; will return it if no object starts here.
5860 ;; If POS is within a container object, move
5861 ;; into that object.
5865 ;; At contents' end, if there is no
5866 ;; space before point, also move into
5867 ;; object, for consistency with
5868 ;; convenience feature above.
5877 next nil
5878 object-data nil))
5879 ;; Otherwise, return NEXT.
5881 ;; Store results in cache, if applicable.
5885 "List all ancestors of a given element or object.
5887 BLOB is an object or element.
5889 When optional argument TYPES is a list of symbols, return the
5890 first element or object in the lineage whose type belongs to that
5891 list.
5893 When optional argument WITH-SELF is non-nil, lineage includes
5894 BLOB itself as the first element, and TYPES, if provided, also
5895 apply to it.
5897 When BLOB is obtained through `org-element-context' or
5898 `org-element-at-point', only ancestors from its section can be
5899 found. There is no such limitation when BLOB belongs to a full
5900 parse tree."
5902 ancestors)
5909 "Non-nil when elements ELEM-A and ELEM-B are nested."
5918 "Swap elements ELEM-A and ELEM-B.
5919 Assume ELEM-B is after ELEM-A in the buffer. Leave point at the
5920 end of ELEM-A."
5922 ;; There are two special cases when an element doesn't start at bol:
5923 ;; the first paragraph in an item or in a footnote definition.
5925 ;; Only a paragraph without any affiliated keyword can be moved at
5926 ;; ELEM-A position in such a situation. Note that the case of
5927 ;; a footnote definition is impossible: it cannot contain two
5928 ;; paragraphs in a row because it cannot contain a blank line.
5934 ;; In a special situation, ELEM-A will have no indentation. We'll
5935 ;; give it ELEM-B's (which will in, in turn, have no indentation).
5949 ;; Store inner overlays responsible for visibility status.
5950 ;; We also need to store their boundaries as they will be
5951 ;; removed from buffer.
5966 ;; Get contents.
5974 ;; Restore ex ELEM-A overlays.
5981 ;; Restore ex ELEM-B overlays.
5987 "Remove maximum common indentation in string S and return it.
5988 When optional argument N is a positive integer, remove exactly
5989 that much characters from indentation, if possible, or return
5990 S as-is otherwise. Unlike to `org-remove-indentation', this
5991 function doesn't call `untabify' on S."
5996 ;; Find maximum common indentation, if not specified.
6004 min-ind)))
6006 ;; Remove exactly N indentation, but give up if not possible.
6019 ;; Local variables:
6020 ;; generated-autoload-file: "org-loaddefs.el"
6021 ;; End:
6023 ;;; org-element.el ends here