| blob | ff6407b02f3bae9121a2f303f81b6a1921b57284 |
1 ;;; ox.el --- Generic Export Engine for Org Mode
3 ;; Copyright (C) 2012, 2013 Free Software Foundation, Inc.
5 ;; Author: Nicolas Goaziou <n.goaziou at gmail dot com>
6 ;; Keywords: outlines, hypermedia, calendar, wp
8 ;; GNU Emacs is free software: you can redistribute it and/or modify
9 ;; it under the terms of the GNU General Public License as published by
10 ;; the Free Software Foundation, either version 3 of the License, or
11 ;; (at your option) any later version.
13 ;; GNU Emacs is distributed in the hope that it will be useful,
14 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
15 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 ;; GNU General Public License for more details.
18 ;; You should have received a copy of the GNU General Public License
19 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
21 ;;; Commentary:
22 ;;
23 ;; This library implements a generic export engine for Org, built on
24 ;; its syntactical parser: Org Elements.
25 ;;
26 ;; Besides that parser, the generic exporter is made of three distinct
27 ;; parts:
28 ;;
29 ;; - The communication channel consists in a property list, which is
30 ;; created and updated during the process. Its use is to offer
31 ;; every piece of information, would it be about initial environment
32 ;; or contextual data, all in a single place. The exhaustive list
33 ;; of properties is given in "The Communication Channel" section of
34 ;; this file.
35 ;;
36 ;; - The transcoder walks the parse tree, ignores or treat as plain
37 ;; text elements and objects according to export options, and
38 ;; eventually calls back-end specific functions to do the real
39 ;; transcoding, concatenating their return value along the way.
40 ;;
41 ;; - The filter system is activated at the very beginning and the very
42 ;; end of the export process, and each time an element or an object
43 ;; has been converted. It is the entry point to fine-tune standard
44 ;; output from back-end transcoders. See "The Filter System"
45 ;; section for more information.
46 ;;
47 ;; The core function is `org-export-as'. It returns the transcoded
48 ;; buffer as a string.
49 ;;
50 ;; An export back-end is defined with `org-export-define-backend',
51 ;; which defines one mandatory information: his translation table.
52 ;; Its value is an alist whose keys are elements and objects types and
53 ;; values translator functions. See function's docstring for more
54 ;; information about translators.
55 ;;
56 ;; Optionally, `org-export-define-backend' can also support specific
57 ;; buffer keywords, OPTION keyword's items and filters. Also refer to
58 ;; function documentation for more information.
59 ;;
60 ;; If the new back-end shares most properties with another one,
61 ;; `org-export-define-derived-backend' can be used to simplify the
62 ;; process.
63 ;;
64 ;; Any back-end can define its own variables. Among them, those
65 ;; customizable should belong to the `org-export-BACKEND' group.
66 ;;
67 ;; Tools for common tasks across back-ends are implemented in the
68 ;; following part of then file.
69 ;;
70 ;; Then, a wrapper macro for asynchronous export,
71 ;; `org-export-async-start', along with tools to display results. are
72 ;; given in the penultimate part.
73 ;;
74 ;; Eventually, a dispatcher (`org-export-dispatch') for standard
75 ;; back-ends is provided in the last one.
77 ;;; Code:
96 \f
97 ;;; Internal Variables
98 ;;
99 ;; Among internal variables, the most important is
100 ;; `org-export-options-alist'. This variable define the global export
101 ;; options, shared between every exporter, and how they are acquired.
146 "Alist between export properties and ways to set them.
148 The CAR of the alist is the property name, and the CDR is a list
149 like (KEYWORD OPTION DEFAULT BEHAVIOUR) where:
151 KEYWORD is a string representing a buffer keyword, or nil. Each
152 property defined this way can also be set, during subtree
153 export, through a headline property named after the keyword
155 property).
156 OPTION is a string that could be found in an #+OPTIONS: line.
157 DEFAULT is the default value for the property.
158 BEHAVIOUR determines how Org should handle multiple keywords for
159 the same property. It is a symbol among:
160 nil Keep old value and discard the new one.
161 t Replace old value with the new one.
162 `space' Concatenate the values, separating them with a space.
163 `newline' Concatenate the values, separating them with
164 a newline.
165 `split' Split values at white spaces, and cons them to the
166 previous list.
168 Values set through KEYWORD and OPTION have precedence over
169 DEFAULT.
171 All these properties should be back-end agnostic. Back-end
172 specific properties are set through `org-export-define-backend'.
176 "List of in-buffer keywords that require special treatment.
177 These keywords are not directly associated to a property. The
178 way they are handled must be hard-coded into
239 "Alist between filters properties and initial values.
241 The key of each association is a property name accessible through
242 the communication channel. Its value is a configurable global
243 variable defining initial filters.
245 This list is meant to install user specified filters. Back-end
246 developers may install their own filters using
247 `org-export-define-backend'. Filters defined there will always
248 be prepended to the current list, so they always get applied
257 "Default rule for link matching an inline image.
258 This rule applies to links with no description. By default, it
259 will be considered as an inline image if it targets a local file
262 See `org-export-inline-image-p' for more information about
266 "Non-nil means asynchronous export process should leave data behind.
270 located in `temporary-file-directory'.
272 When non-nil, it will also set `debug-on-error' to a non-nil
276 "Record asynchronously generated export results and processes.
277 This is an alist: its CAR is the source of the
278 result (destination file or buffer for a finished process,
279 original buffer for a running one) and its CDR is a list
280 containing the back-end used, as a symbol, and either a process
281 or the time at which it finished. It is used to build the menu
285 "List of backends currently available in the exporter.
287 A backend is stored as a list where CAR is its name, as a symbol,
288 and CDR is a plist with the following properties:
289 `:filters-alist', `:menu-entry', `:options-alist' and
290 `:translate-alist'.
292 This variable is set with `org-export-define-backend' and
296 "Last command called from the dispatcher.
297 The value should be a list. Its CAR is the action, as a symbol,
301 "The position where the last export command was created using the dispatcher.
302 This marker will be used with `C-u C-c C-e' to make sure export repetition
305 \f
306 ;;; User-configurable Variables
307 ;;
308 ;; Configuration for the masses.
309 ;;
310 ;; They should never be accessed directly, as their value is to be
311 ;; stored in a property list (cf. `org-export-options-alist').
312 ;; Back-ends will read their value from there instead.
315 "Options for exporting Org mode files."
320 "General options for export engine."
325 "Whether sub-trees with the ARCHIVE tag should be exported.
327 This can have three different values:
328 nil Do not export, pretend this tree is not present.
329 t Do export the entire tree.
330 `headline' Only export the headline, but skip the tree below it.
332 This option can also be set with the #+OPTIONS line,
341 "Non-nil means insert author name into the exported file.
342 This option can also be set with the #+OPTIONS line,
348 "Non-nil means export CLOCK keywords.
349 This option can also be set with the #+OPTIONS line,
355 "Non-nil means the postamble should contain a creator sentence.
357 The sentence can be set in `org-export-creator-string' and
360 If the value is `comment' insert it as a comment."
368 "Non-nil means insert date in the exported document.
369 This options can also be set with the OPTIONS keyword,
375 emacs-version)
376 "String to insert at the end of the generated document."
381 "Non-nil means export contents of standard drawers.
383 When t, all drawers are exported. This may also be a list of
384 drawer names to export. If that list starts with `not', only
385 drawers with such names will be ignored.
387 This variable doesn't apply to properties drawers.
389 This option can also be set with the #+OPTIONS line,
402 :inline t
406 "Non-nil means insert author email into the exported file.
407 This option can also be set with the #+OPTIONS line,
413 "Non-nil means interpret *word*, /word/, _word_ and +word+.
415 If the export target supports emphasizing text, the word will be
416 typeset in bold, italic, with an underline or strike-through,
417 respectively.
424 "Tags that exclude a tree from export.
426 All trees carrying any of these tags will be excluded from
427 export. This is without condition, so even subtrees inside that
428 carry one of the `org-export-select-tags' will be removed.
430 This option can also be set with the #+EXCLUDE_TAGS: keyword."
437 This can be used to have pre-formatted text, fragments of code
438 etc. For example:
439 : ;; Some Lisp examples
440 : (while (defc cnt)
441 : (ding))
442 will be looking just like this in also HTML. See also the QUOTE
443 keyword. Not all export backends support this.
450 "Non-nil means Org footnotes should be exported.
451 This option can also be set with the #+OPTIONS line,
457 "Non-nil means process LaTeX environments and fragments.
459 This option can also be set with the +OPTIONS line,
462 nil Ignore math snippets.
463 `verbatim' Keep everything in verbatim.
464 t Allow export of math snippets."
474 "The last level which is still exported as a headline.
476 Inferior levels will produce itemize or enumerate lists when
477 exported.
484 "The default language for export and clocktable translations, as a string.
485 This may have an association in
486 `org-clock-clocktable-language-setup'."
491 "Non-nil means preserve all line breaks when exporting.
492 This option can also be set with the #+OPTIONS line,
498 "Non-nil means interpret entities when exporting.
501 Å.
503 For a list of supported names, see the constant `org-entities'
504 and the user option `org-entities-user'.
506 This option can also be set with the #+OPTIONS line,
512 "Non-nil means inlinetasks should be exported.
513 This option can also be set with the #+OPTIONS line,
521 "Non-nil means include planning info in export.
522 This option can also be set with the #+OPTIONS: line,
530 "Non-nil means include priority cookies in export.
531 This option can also be set with the #+OPTIONS line,
537 "Non-nil means add section numbers to headlines when exporting.
539 When set to an integer n, numbering will only happen for
540 headlines whose relative level is higher or equal to n.
542 This option can also be set with the #+OPTIONS line,
548 "Tags that select a tree for export.
550 If any such tag is found in a buffer, all trees that do not carry
551 one of these tags will be ignored during export. Inside trees
552 that are selected like this, you can still deselect a subtree by
553 tagging it with one of the `org-export-exclude-tags'.
555 This option can also be set with the #+SELECT_TAGS: keyword."
560 "Non-nil means activate smart quotes during export.
561 This option can also be set with the #+OPTIONS: line,
571 When this option is turned on, these strings will be exported as:
573 Org HTML LaTeX UTF-8
574 -----+----------+--------+-------
576 -- – -- –
577 --- — --- —
580 This option can also be set with the #+OPTIONS line,
586 "Non-nil means include statistics cookies in export.
587 This option can also be set with the #+OPTIONS: line,
597 When this option is turned on, you can use TeX-like syntax for
599 will be considered as a single item - so grouping with {} is
600 normally not needed. For example, the following things will be
601 parsed as single sub- or superscripts.
603 10^24 or 10^tau several digits will be considered 1 item.
604 10^-12 or 10^-tau a leading sign with digits or a word
605 x^2-y^3 will be read as x^2 - y^3, because items are
606 terminated by almost any nonword/nondigit char.
607 x_{i^2} or x^(2-i) braces or parenthesis do grouping.
609 Still, ambiguity is possible - so when in doubt use {} to enclose
610 the sub/superscript. If you set this variable to the symbol
611 `{}', the braces are *required* in order to trigger
612 interpretations as sub/superscript. This can be helpful in
615 This option can also be set with the #+OPTIONS line,
624 "Non-nil means create a table of contents in exported files.
626 The TOC contains headlines with levels up
627 to`org-export-headline-levels'. When an integer, include levels
628 up to N in the toc, this may then be different from
629 `org-export-headline-levels', but it will not be allowed to be
630 larger than the number of headline levels. When nil, no table of
631 contents is made.
633 This option can also be set with the #+OPTIONS line,
643 For example:
645 | Name | Address | Birthday |
646 |-------------+----------+-----------|
647 | Arthur Dent | England | 29.2.2100 |
654 "If nil, do not export tags, just remove them from headlines.
656 If this is the symbol `not-in-toc', tags will be removed from
657 table of contents entries, but still be shown in the headlines of
658 the document.
660 This option can also be set with the #+OPTIONS line,
669 "Non-nil means include TODO items for export.
671 This may have the following values:
672 t include tasks independent of state.
673 `todo' include only tasks that are not yet done.
674 `done' include only tasks that are already done.
675 nil ignore all tasks.
676 list of keywords include tasks with these keywords.
678 This option can also be set with the #+OPTIONS line,
690 "Non-nil means insert a time stamp into the exported file.
691 The time stamp shows when the file was created.
693 This option can also be set with the #+OPTIONS line,
699 "Non nil means allow timestamps in export.
701 It can be set to `active', `inactive', t or nil, in order to
702 export, respectively, only active timestamps, only inactive ones,
703 all of them or none.
705 This option can also be set with the #+OPTIONS line, e.g.
715 "Non-nil means include TODO keywords in export.
716 When nil, remove all these keywords from the export."
721 "Non-nil means BIND keywords can define local variable values.
722 This is a potential security risk, which is why the default value
723 is nil. You can also allow them through local buffer variables."
730 "Alist between export snippets back-ends and exporter back-ends.
732 This variable allows to provide shortcuts for export snippets.
736 HTML code while every other back-end will ignore it."
745 "Coding system for the exported file."
752 "Should we push exported content to the kill ring?"
761 "The initial scope when exporting with `org-export-dispatch'.
762 This variable can be either set to `buffer' or `subtree'."
769 "Non-nil means show buffer after exporting to temp buffer.
770 When Org exports to a file, the buffer visiting that file is ever
771 shown, but remains buried. However, when exporting to
772 a temporary buffer, that buffer is popped up in a second window.
773 When this variable is nil, the buffer remains buried also in
774 these cases."
779 "Non-nil means export and publishing commands will run in background.
780 Results from an asynchronous export are never displayed
788 "File used to initialize external export process.
789 Value must be an absolute file name. It defaults to user's
790 initialization file. Though, a specific configuration makes the
791 process faster and the export more portable."
798 "List of back-ends that shouldn't appear in the dispatcher.
800 Any back-end belonging to this list or derived from a back-end
801 belonging to it will not appear in the dispatcher menu.
803 Indeed, Org may require some export back-ends without notice. If
804 these modules are never to be used interactively, adding them
805 here will avoid cluttering the dispatcher menu."
812 "Non-nil means using a non-intrusive `org-export-dispatch'.
813 In that case, no help buffer is displayed. Though, an indicator
819 asynchronous). Also, \[?] allows to switch back to standard
820 mode."
827 \f
828 ;;; Defining Back-ends
829 ;;
830 ;; `org-export-define-backend' is the standard way to define an export
831 ;; back-end. It allows to specify translators, filters, buffer
832 ;; options and a menu entry. If the new back-end shares translators
833 ;; with another back-end, `org-export-define-derived-backend' may be
834 ;; used instead.
835 ;;
836 ;; Internally, a back-end is stored as a list, of which CAR is the
837 ;; name of the back-end, as a symbol, and CDR a plist. Accessors to
838 ;; properties of a given back-end are: `org-export-backend-filters',
839 ;; `org-export-backend-menu', `org-export-backend-options' and
840 ;; `org-export-backend-translate-table'.
841 ;;
842 ;; Eventually `org-export-barf-if-invalid-backend' returns an error
843 ;; when a given back-end hasn't been registered yet.
846 "Define a new back-end BACKEND.
848 TRANSLATORS is an alist between object or element types and
849 functions handling them.
851 These functions should return a string without any trailing
852 space, or nil. They must accept three arguments: the object or
853 element itself, its contents or nil when it isn't recursive and
854 the property list used as a communication channel.
856 Contents, when not nil, are stripped from any global indentation
857 \(although the relative one is preserved). They also always end
858 with a single newline character.
860 If, for a given type, no function is found, that element or
861 object type will simply be ignored, along with any blank line or
862 white space at its end. The same will happen if the function
863 returns the nil value. If that function returns the empty
864 string, the type will be ignored, but the blank lines or white
865 spaces will be kept.
867 In addition to element and object types, one function can be
868 associated to the `template' (or `inner-template') symbol and
869 another one to the `plain-text' symbol.
871 The former returns the final transcoded string, and can be used
872 to add a preamble and a postamble to document's body. It must
873 accept two arguments: the transcoded string and the property list
874 containing export options. A function associated to `template'
876 A function associated to `inner-template' is always applied.
878 The latter, when defined, is to be called on every text not
879 recognized as an element or an object. It must accept two
880 arguments: the text string and the information channel. It is an
881 appropriate place to protect special chars relative to the
882 back-end.
884 BODY can start with pre-defined keyword arguments. The following
885 keywords are understood:
887 :export-block
889 String, or list of strings, representing block names that
890 will not be parsed. This is used to specify blocks that will
891 contain raw code specific to the back-end. These blocks
892 still have to be handled by the relative `export-block' type
893 translator.
895 :filters-alist
897 Alist between filters and function, or list of functions,
898 specific to the back-end. See `org-export-filters-alist' for
899 a list of all allowed filters. Filters defined here
900 shouldn't make a back-end test, as it may prevent back-ends
901 derived from this one to behave properly.
903 :menu-entry
905 Menu entry for the export dispatcher. It should be a list
906 like:
908 '(KEY DESCRIPTION-OR-ORDINAL ACTION-OR-MENU)
910 where :
912 KEY is a free character selecting the back-end.
914 DESCRIPTION-OR-ORDINAL is either a string or a number.
916 If it is a string, is will be used to name the back-end in
917 its menu entry. If it is a number, the following menu will
918 be displayed as a sub-menu of the back-end with the same
919 KEY. Also, the number will be used to determine in which
920 order such sub-menus will appear (lowest first).
922 ACTION-OR-MENU is either a function or an alist.
924 If it is an action, it will be called with four
925 arguments (booleans): ASYNC, SUBTREEP, VISIBLE-ONLY and
926 BODY-ONLY. See `org-export-as' for further explanations on
927 some of them.
929 If it is an alist, associations should follow the
930 pattern:
932 '(KEY DESCRIPTION ACTION)
934 where KEY, DESCRIPTION and ACTION are described above.
936 Valid values include:
940 or
945 \(lambda (a s v b)
946 \(if a (org-latex-export-to-pdf t s v b)
947 \(org-open-file
948 \(org-latex-export-to-pdf nil s v b)))))))
950 or the following, which will be added to the previous
951 sub-menu,
953 '(?l 1
957 :options-alist
959 Alist between back-end specific properties introduced in
960 communication channel and how their value are acquired. See
961 `org-export-options-alist' for more information about
962 structure of the values."
979 ;; Register back-end.
983 ;; Tell parser to not parse EXPORT-BLOCK blocks.
989 export-block))))
992 "Create a new back-end as a variant of an existing one.
994 CHILD is the name of the derived back-end. PARENT is the name of
995 the parent back-end.
997 BODY can start with pre-defined keyword arguments. The following
998 keywords are understood:
1000 :export-block
1002 String, or list of strings, representing block names that
1003 will not be parsed. This is used to specify blocks that will
1004 contain raw code specific to the back-end. These blocks
1005 still have to be handled by the relative `export-block' type
1006 translator.
1008 :filters-alist
1010 Alist of filters that will overwrite or complete filters
1011 defined in PARENT back-end. See `org-export-filters-alist'
1012 for a list of allowed filters.
1014 :menu-entry
1016 Menu entry for the export dispatcher. See
1017 `org-export-define-backend' for more information about the
1018 expected value.
1020 :options-alist
1022 Alist of back-end specific properties that will overwrite or
1023 complete those defined in PARENT back-end. Refer to
1024 `org-export-options-alist' for more information about
1025 structure of the values.
1027 :translate-alist
1029 Alist of element and object types and transcoders that will
1030 overwrite or complete transcode table from PARENT back-end.
1031 Refer to `org-export-define-backend' for detailed information
1032 about transcoders.
1035 as a variant of `latex' back-end with a custom template function:
1037 \(org-export-define-derived-backend 'my-latex 'latex
1038 :translate-alist '((template . my-latex-template-fun)))
1040 The back-end could then be called with, for example:
1066 ;; Register back-end.
1070 ;; Tell parser to not parse EXPORT-BLOCK blocks.
1076 export-block))))
1079 "Return back-end from which BACKEND is derived, or nil."
1083 "Return filters for BACKEND."
1088 "Return menu entry for BACKEND."
1093 "Return export options for BACKEND."
1098 "Return translate table for BACKEND."
1103 "Signal an error if BACKEND isn't defined."
1108 "Non-nil if BACKEND is derived from one of BACKENDS."
1112 parent))
1115 \f
1116 ;;; The Communication Channel
1117 ;;
1118 ;; During export process, every function has access to a number of
1119 ;; properties. They are of two types:
1120 ;;
1121 ;; 1. Environment options are collected once at the very beginning of
1122 ;; the process, out of the original buffer and configuration.
1123 ;; Collecting them is handled by `org-export-get-environment'
1124 ;; function.
1125 ;;
1126 ;; Most environment options are defined through the
1127 ;; `org-export-options-alist' variable.
1128 ;;
1129 ;; 2. Tree properties are extracted directly from the parsed tree,
1130 ;; just before export, by `org-export-collect-tree-properties'.
1131 ;;
1132 ;; Here is the full list of properties available during transcode
1133 ;; process, with their category and their value type.
1134 ;;
1135 ;; + `:author' :: Author's name.
1136 ;; - category :: option
1137 ;; - type :: string
1138 ;;
1139 ;; + `:back-end' :: Current back-end used for transcoding.
1140 ;; - category :: tree
1141 ;; - type :: symbol
1142 ;;
1143 ;; + `:creator' :: String to write as creation information.
1144 ;; - category :: option
1145 ;; - type :: string
1146 ;;
1147 ;; + `:date' :: String to use as date.
1148 ;; - category :: option
1149 ;; - type :: string
1150 ;;
1151 ;; + `:description' :: Description text for the current data.
1152 ;; - category :: option
1153 ;; - type :: string
1154 ;;
1155 ;; + `:email' :: Author's email.
1156 ;; - category :: option
1157 ;; - type :: string
1158 ;;
1159 ;; + `:exclude-tags' :: Tags for exclusion of subtrees from export
1160 ;; process.
1161 ;; - category :: option
1162 ;; - type :: list of strings
1163 ;;
1164 ;; + `:export-options' :: List of export options available for current
1165 ;; process.
1166 ;; - category :: none
1167 ;; - type :: list of symbols, among `subtree', `body-only' and
1168 ;; `visible-only'.
1169 ;;
1170 ;; + `:exported-data' :: Hash table used for memoizing
1171 ;; `org-export-data'.
1172 ;; - category :: tree
1173 ;; - type :: hash table
1174 ;;
1175 ;; + `:filetags' :: List of global tags for buffer. Used by
1176 ;; `org-export-get-tags' to get tags with inheritance.
1177 ;; - category :: option
1178 ;; - type :: list of strings
1179 ;;
1180 ;; + `:footnote-definition-alist' :: Alist between footnote labels and
1181 ;; their definition, as parsed data. Only non-inlined footnotes
1182 ;; are represented in this alist. Also, every definition isn't
1183 ;; guaranteed to be referenced in the parse tree. The purpose of
1184 ;; this property is to preserve definitions from oblivion
1185 ;; (i.e. when the parse tree comes from a part of the original
1186 ;; buffer), it isn't meant for direct use in a back-end. To
1187 ;; retrieve a definition relative to a reference, use
1188 ;; `org-export-get-footnote-definition' instead.
1189 ;; - category :: option
1190 ;; - type :: alist (STRING . LIST)
1191 ;;
1192 ;; + `:headline-levels' :: Maximum level being exported as an
1193 ;; headline. Comparison is done with the relative level of
1194 ;; headlines in the parse tree, not necessarily with their
1195 ;; actual level.
1196 ;; - category :: option
1197 ;; - type :: integer
1198 ;;
1199 ;; + `:headline-offset' :: Difference between relative and real level
1200 ;; of headlines in the parse tree. For example, a value of -1
1201 ;; means a level 2 headline should be considered as level
1202 ;; 1 (cf. `org-export-get-relative-level').
1203 ;; - category :: tree
1204 ;; - type :: integer
1205 ;;
1206 ;; + `:headline-numbering' :: Alist between headlines and their
1207 ;; numbering, as a list of numbers
1208 ;; (cf. `org-export-get-headline-number').
1209 ;; - category :: tree
1210 ;; - type :: alist (INTEGER . LIST)
1211 ;;
1212 ;; + `:id-alist' :: Alist between ID strings and destination file's
1213 ;; path, relative to current directory. It is used by
1214 ;; `org-export-resolve-id-link' to resolve ID links targeting an
1215 ;; external file.
1216 ;; - category :: option
1217 ;; - type :: alist (STRING . STRING)
1218 ;;
1219 ;; + `:ignore-list' :: List of elements and objects that should be
1220 ;; ignored during export.
1221 ;; - category :: tree
1222 ;; - type :: list of elements and objects
1223 ;;
1224 ;; + `:input-file' :: Full path to input file, if any.
1225 ;; - category :: option
1226 ;; - type :: string or nil
1227 ;;
1228 ;; + `:keywords' :: List of keywords attached to data.
1229 ;; - category :: option
1230 ;; - type :: string
1231 ;;
1232 ;; + `:language' :: Default language used for translations.
1233 ;; - category :: option
1234 ;; - type :: string
1235 ;;
1236 ;; + `:parse-tree' :: Whole parse tree, available at any time during
1237 ;; transcoding.
1238 ;; - category :: option
1239 ;; - type :: list (as returned by `org-element-parse-buffer')
1240 ;;
1241 ;; + `:preserve-breaks' :: Non-nil means transcoding should preserve
1242 ;; all line breaks.
1243 ;; - category :: option
1244 ;; - type :: symbol (nil, t)
1245 ;;
1246 ;; + `:section-numbers' :: Non-nil means transcoding should add
1247 ;; section numbers to headlines.
1248 ;; - category :: option
1249 ;; - type :: symbol (nil, t)
1250 ;;
1251 ;; + `:select-tags' :: List of tags enforcing inclusion of sub-trees
1252 ;; in transcoding. When such a tag is present, subtrees without
1253 ;; it are de facto excluded from the process. See
1254 ;; `use-select-tags'.
1255 ;; - category :: option
1256 ;; - type :: list of strings
1257 ;;
1258 ;; + `:time-stamp-file' :: Non-nil means transcoding should insert
1259 ;; a time stamp in the output.
1260 ;; - category :: option
1261 ;; - type :: symbol (nil, t)
1262 ;;
1263 ;; + `:translate-alist' :: Alist between element and object types and
1264 ;; transcoding functions relative to the current back-end.
1265 ;; Special keys `inner-template', `template' and `plain-text' are
1266 ;; also possible.
1267 ;; - category :: option
1268 ;; - type :: alist (SYMBOL . FUNCTION)
1269 ;;
1270 ;; + `:with-archived-trees' :: Non-nil when archived subtrees should
1271 ;; also be transcoded. If it is set to the `headline' symbol,
1272 ;; only the archived headline's name is retained.
1273 ;; - category :: option
1274 ;; - type :: symbol (nil, t, `headline')
1275 ;;
1276 ;; + `:with-author' :: Non-nil means author's name should be included
1277 ;; in the output.
1278 ;; - category :: option
1279 ;; - type :: symbol (nil, t)
1280 ;;
1281 ;; + `:with-clocks' :: Non-nil means clock keywords should be exported.
1282 ;; - category :: option
1283 ;; - type :: symbol (nil, t)
1284 ;;
1285 ;; + `:with-creator' :: Non-nil means a creation sentence should be
1286 ;; inserted at the end of the transcoded string. If the value
1287 ;; is `comment', it should be commented.
1288 ;; - category :: option
1289 ;; - type :: symbol (`comment', nil, t)
1290 ;;
1291 ;; + `:with-date' :: Non-nil means output should contain a date.
1292 ;; - category :: option
1293 ;; - type :. symbol (nil, t)
1294 ;;
1295 ;; + `:with-drawers' :: Non-nil means drawers should be exported. If
1296 ;; its value is a list of names, only drawers with such names
1297 ;; will be transcoded. If that list starts with `not', drawer
1298 ;; with these names will be skipped.
1299 ;; - category :: option
1300 ;; - type :: symbol (nil, t) or list of strings
1301 ;;
1302 ;; + `:with-email' :: Non-nil means output should contain author's
1303 ;; email.
1304 ;; - category :: option
1305 ;; - type :: symbol (nil, t)
1306 ;;
1307 ;; + `:with-emphasize' :: Non-nil means emphasized text should be
1308 ;; interpreted.
1309 ;; - category :: option
1310 ;; - type :: symbol (nil, t)
1311 ;;
1312 ;; + `:with-fixed-width' :: Non-nil if transcoder should interpret
1313 ;; strings starting with a colon as a fixed-with (verbatim) area.
1314 ;; - category :: option
1315 ;; - type :: symbol (nil, t)
1316 ;;
1317 ;; + `:with-footnotes' :: Non-nil if transcoder should interpret
1318 ;; footnotes.
1319 ;; - category :: option
1320 ;; - type :: symbol (nil, t)
1321 ;;
1322 ;; + `:with-latex' :: Non-nil means `latex-environment' elements and
1323 ;; `latex-fragment' objects should appear in export output. When
1324 ;; this property is set to `verbatim', they will be left as-is.
1325 ;; - category :: option
1326 ;; - type :: symbol (`verbatim', nil, t)
1327 ;;
1328 ;; + `:with-plannings' :: Non-nil means transcoding should include
1329 ;; planning info.
1330 ;; - category :: option
1331 ;; - type :: symbol (nil, t)
1332 ;;
1333 ;; + `:with-priority' :: Non-nil means transcoding should include
1334 ;; priority cookies.
1335 ;; - category :: option
1336 ;; - type :: symbol (nil, t)
1337 ;;
1338 ;; + `:with-smart-quotes' :: Non-nil means activate smart quotes in
1339 ;; plain text.
1340 ;; - category :: option
1341 ;; - type :: symbol (nil, t)
1342 ;;
1343 ;; + `:with-special-strings' :: Non-nil means transcoding should
1344 ;; interpret special strings in plain text.
1345 ;; - category :: option
1346 ;; - type :: symbol (nil, t)
1347 ;;
1348 ;; + `:with-sub-superscript' :: Non-nil means transcoding should
1349 ;; interpret subscript and superscript. With a value of "{}",
1350 ;; only interpret those using curly brackets.
1351 ;; - category :: option
1352 ;; - type :: symbol (nil, {}, t)
1353 ;;
1354 ;; + `:with-tables' :: Non-nil means transcoding should interpret
1355 ;; tables.
1356 ;; - category :: option
1357 ;; - type :: symbol (nil, t)
1358 ;;
1359 ;; + `:with-tags' :: Non-nil means transcoding should keep tags in
1360 ;; headlines. A `not-in-toc' value will remove them from the
1361 ;; table of contents, if any, nonetheless.
1362 ;; - category :: option
1363 ;; - type :: symbol (nil, t, `not-in-toc')
1364 ;;
1365 ;; + `:with-tasks' :: Non-nil means transcoding should include
1366 ;; headlines with a TODO keyword. A `todo' value will only
1367 ;; include headlines with a todo type keyword while a `done'
1368 ;; value will do the contrary. If a list of strings is provided,
1369 ;; only tasks with keywords belonging to that list will be kept.
1370 ;; - category :: option
1371 ;; - type :: symbol (t, todo, done, nil) or list of strings
1372 ;;
1373 ;; + `:with-timestamps' :: Non-nil means transcoding should include
1374 ;; time stamps. Special value `active' (resp. `inactive') ask to
1375 ;; export only active (resp. inactive) timestamps. Otherwise,
1376 ;; completely remove them.
1377 ;; - category :: option
1378 ;; - type :: symbol: (`active', `inactive', t, nil)
1379 ;;
1380 ;; + `:with-toc' :: Non-nil means that a table of contents has to be
1381 ;; added to the output. An integer value limits its depth.
1382 ;; - category :: option
1383 ;; - type :: symbol (nil, t or integer)
1384 ;;
1385 ;; + `:with-todo-keywords' :: Non-nil means transcoding should
1386 ;; include TODO keywords.
1387 ;; - category :: option
1388 ;; - type :: symbol (nil, t)
1391 ;;;; Environment Options
1392 ;;
1393 ;; Environment options encompass all parameters defined outside the
1394 ;; scope of the parsed data. They come from five sources, in
1395 ;; increasing precedence order:
1396 ;;
1397 ;; - Global variables,
1398 ;; - Buffer's attributes,
1399 ;; - Options keyword symbols,
1400 ;; - Buffer keywords,
1401 ;; - Subtree properties.
1402 ;;
1403 ;; The central internal function with regards to environment options
1404 ;; is `org-export-get-environment'. It updates global variables with
1405 ;; "#+BIND:" keywords, then retrieve and prioritize properties from
1406 ;; the different sources.
1407 ;;
1408 ;; The internal functions doing the retrieval are:
1409 ;; `org-export--get-global-options',
1410 ;; `org-export--get-buffer-attributes',
1411 ;; `org-export--parse-option-keyword',
1412 ;; `org-export--get-subtree-options' and
1413 ;; `org-export--get-inbuffer-options'
1414 ;;
1415 ;; Also, `org-export--install-letbind-maybe' takes care of the part
1416 ;; relative to "#+BIND:" keywords.
1419 "Collect export options from the current buffer.
1421 Optional argument BACKEND is a symbol specifying which back-end
1422 specific options to read, if any.
1424 When optional argument SUBTREEP is non-nil, assume the export is
1425 done against the current sub-tree.
1427 Third optional argument EXT-PLIST is a property list with
1428 external parameters overriding Org default settings, but still
1429 inferior to file-local settings."
1430 ;; First install #+BIND variables since these must be set before
1431 ;; global options are read.
1433 ;; Get and prioritize export options...
1435 ;; ... from global variables...
1437 ;; ... from an external property list...
1438 ext-plist
1439 ;; ... from in-buffer settings...
1441 ;; ... and from subtree, when appropriate.
1443 ;; Eventually add misc. properties.
1445 :back-end
1446 backend
1447 :translate-alist
1449 :footnote-definition-alist
1450 ;; Footnotes definitions must be collected in the original
1451 ;; buffer, as there's no insurance that they will still be in
1452 ;; the parse tree, due to possible narrowing.
1466 alist))))
1467 alist))
1468 :id-alist
1469 ;; Collect id references.
1480 alist))))
1483 "Parse an OPTIONS line and return values as a plist.
1484 Optional argument BACKEND is a symbol specifying which back-end
1485 specific items to read, if any."
1487 ;; Priority is given to back-end specific options.
1489 org-export-options-alist))
1490 plist)
1499 options))
1501 property
1504 plist))
1507 "Get export options in subtree at point.
1508 Optional argument BACKEND is a symbol specifying back-end used
1509 for export. Return options as a plist."
1510 ;; For each buffer keyword, create a headline property setting the
1511 ;; same property in communication channel. The name for the property
1512 ;; is the keyword with "EXPORT_" appended to it.
1515 ;; Make sure point is at an heading.
1517 ;; Take care of EXPORT_TITLE. If it isn't defined, use headline's
1518 ;; title as its fallback value.
1524 plist :title
1527 ;; EXPORT_OPTIONS are parsed in a non-standard way.
1531 ;; Handle other keywords. TITLE keyword is excluded as it has
1532 ;; been handled already.
1540 ;; Export properties are not case-sensitive.
1547 plist
1548 property
1550 ;; Parse VALUE if required.
1554 ;; If BEHAVIOUR is `split' expected value is
1555 ;; a list of strings, not a string.
1558 ;; Look for both general keywords and back-end specific
1559 ;; options, with priority given to the latter.
1561 org-export-options-alist)))
1562 ;; Return value.
1563 plist)))
1566 "Return current buffer export options, as a plist.
1568 Optional argument BACKEND, when non-nil, is a symbol specifying
1569 which back-end specific options should also be read in the
1570 process.
1572 Assume buffer is in Org mode. Narrowing, if any, is ignored."
1574 get-options ; For byte-compiler.
1577 ;; Priority is given to back-end specific options.
1579 org-export-options-alist))
1582 org-export-special-keywords))))
1585 ;; Return property name associated to KEYWORD.
1590 options))))
1593 ;; Recursively read keywords in buffer. FILES is a list
1594 ;; of files read so far. PLIST is the current property
1595 ;; list obtained.
1604 ;; Options in `org-export-special-keywords'.
1608 ;; Avoid circular dependencies.
1618 plist
1623 plist
1629 ;; Options in `org-export-options-alist'.
1634 plist prop
1635 ;; Handle value depending on specified
1636 ;; BEHAVIOUR.
1642 " "
1654 ;; Return final value.
1655 plist))))
1656 ;; Read options in the current buffer.
1658 ;; Parse keywords specified in `org-element-document-properties'.
1660 ;; Find the property associated to the keyword.
1668 org-element-document-properties)
1669 ;; Return value.
1670 plist))
1673 "Return properties related to buffer attributes, as a plist."
1676 ;; Store full path of input file name, or nil. For internal use.
1677 :input-file visited-file
1684 "Return global export options as a plist.
1686 Optional argument BACKEND, if non-nil, is a symbol specifying
1687 which back-end specific export options should also be read in the
1688 process."
1690 ;; Priority is given to back-end specific options.
1692 org-export-options-alist))
1693 plist)
1700 plist
1701 prop
1702 ;; Eval default value provided. If keyword is a member
1703 ;; of `org-element-document-properties', parse it as
1704 ;; a secondary string before storing it.
1709 value
1712 all)
1713 ;; Return value.
1714 plist))
1717 "Install the values from #+BIND lines as local variables."
1722 ;; Return an alist between variable names and their
1723 ;; value. FILES is a list of setup files names read so
1724 ;; far, used to avoid circular dependencies. ALIST is
1725 ;; the alist collected so far.
1736 ;; Enter setup file.
1746 alist))))))))))
1747 alist)))))
1748 ;; Install each variable in current buffer.
1753 ;;;; Tree Properties
1754 ;;
1755 ;; Tree properties are information extracted from parse tree. They
1756 ;; are initialized at the beginning of the transcoding process by
1757 ;; `org-export-collect-tree-properties'.
1758 ;;
1759 ;; Dedicated functions focus on computing the value of specific tree
1760 ;; properties during initialization. Thus,
1761 ;; `org-export--populate-ignore-list' lists elements and objects that
1762 ;; should be skipped during export, `org-export--get-min-level' gets
1763 ;; the minimal exportable level, used as a basis to compute relative
1764 ;; level for headlines. Eventually
1765 ;; `org-export--collect-headline-numbering' builds an alist between
1766 ;; headlines and their numbering.
1769 "Extract tree properties from parse tree.
1771 DATA is the parse tree from which information is retrieved. INFO
1772 is a list holding export options.
1774 Following tree properties are set or updated:
1776 `:exported-data' Hash table used to memoize results from
1777 `org-export-data'.
1779 `:footnote-definition-alist' List of footnotes definitions in
1780 original buffer and current parse tree.
1782 `:headline-offset' Offset between true level of headlines and
1783 local level. An offset of -1 means a headline
1784 of level 2 should be considered as a level
1785 1 headline in the context.
1787 `:headline-numbering' Alist of all headlines as key an the
1788 associated numbering as value.
1790 `:ignore-list' List of elements that should be ignored during
1791 export.
1793 Return updated plist."
1794 ;; Install the parse tree in the communication channel, in order to
1795 ;; use `org-export-get-genealogy' and al.
1797 ;; Get the list of elements and objects to ignore, and put it into
1798 ;; `:ignore-list'. Do not overwrite any user ignore that might have
1799 ;; been done during parse tree filtering.
1802 :ignore-list
1805 ;; Compute `:headline-offset' in order to be able to use
1806 ;; `org-export-get-relative-level'.
1809 :headline-offset
1811 ;; Update footnotes definitions list with definitions in parse tree.
1812 ;; This is required since buffer expansion might have modified
1813 ;; boundaries of footnote definitions contained in the parse tree.
1814 ;; This way, definitions in `footnote-definition-alist' are bound to
1815 ;; match those in the parse tree.
1821 defs)))
1823 ;; Properties order doesn't matter: get the rest of the tree
1824 ;; properties.
1828 info))
1831 "Return minimum exportable headline's level in DATA.
1832 DATA is parsed tree as returned by `org-element-parse-buffer'.
1833 OPTIONS is a plist holding export options."
1844 ;; If no headline was found, for the sake of consistency, set
1845 ;; minimum level to 1 nonetheless.
1849 "Return numbering of all exportable headlines in a parse tree.
1851 DATA is the parse tree. OPTIONS is the plist holding export
1852 options.
1854 Return an alist whose key is a headline and value is its
1855 associated numbering \(in the shape of a list of numbers\) or nil
1856 for a footnotes section."
1864 headline
1866 for idx from 0 to org-export-max-depth
1870 options)))
1873 "Return list of elements and objects to ignore during export.
1874 DATA is the parse tree to traverse. OPTIONS is the plist holding
1875 export options."
1877 walk-data
1878 ;; First find trees containing a select tag, if any.
1882 ;; Collect ignored elements or objects into IGNORE-LIST.
1888 ;; If headline is archived but tree below has
1889 ;; to be skipped, add it to ignore list.
1892 ;; Move into secondary string, if any.
1897 ;; Move into recursive objects/elements.
1899 ;; Main call.
1901 ;; Return value.
1902 ignore))
1905 "Return list of headlines and inlinetasks with a select tag in their tree.
1906 DATA is parsed data as returned by `org-element-parse-buffer'.
1907 INFO is a plist holding export options."
1909 walk-data ; For byte-compiler.
1919 ;; When a select tag is found, mark full
1920 ;; genealogy and every headline within the tree
1921 ;; as acceptable.
1924 genealogy
1927 selected-trees))
1928 ;; If at a headline, continue searching in tree,
1929 ;; recursively.
1939 selected-trees))
1942 "Non-nil when element or object BLOB should be skipped during export.
1943 OPTIONS is the plist holding export options. SELECTED, when
1944 non-nil, is a list of headlines or inlinetasks belonging to
1945 a tree with a select tag."
1952 ;; If `:with-drawers' value starts with `not', ignore
1953 ;; every drawer whose name belong to that list.
1954 ;; Otherwise, ignore drawers whose name isn't in that
1955 ;; list.
1969 ;; Ignore subtrees with an exclude tag.
1972 ;; When a select tag is present in the buffer, ignore any tree
1973 ;; without it.
1975 ;; Ignore commented sub-trees.
1977 ;; Ignore archived subtrees if `:with-archived-trees' is nil.
1979 ;; Ignore tasks, if specified by `:with-tasks' property.
1995 ;; No timestamp allowed.
1997 ;; Only active timestamps allowed and the current one isn't
1998 ;; active.
2002 ;; Only inactive timestamps allowed and the current one isn't
2003 ;; inactive.
2008 \f
2009 ;;; The Transcoder
2010 ;;
2011 ;; `org-export-data' reads a parse tree (obtained with, i.e.
2012 ;; `org-element-parse-buffer') and transcodes it into a specified
2013 ;; back-end output. It takes care of filtering out elements or
2014 ;; objects according to export options and organizing the output blank
2015 ;; lines and white space are preserved. The function memoizes its
2016 ;; results, so it is cheap to call it within translators.
2017 ;;
2018 ;; It is possible to modify locally the back-end used by
2019 ;; `org-export-data' or even use a temporary back-end by using
2020 ;; `org-export-data-with-translations' and
2021 ;; `org-export-data-with-backend'.
2022 ;;
2023 ;; Internally, three functions handle the filtering of objects and
2024 ;; elements during the export. In particular,
2025 ;; `org-export-ignore-element' marks an element or object so future
2026 ;; parse tree traversals skip it, `org-export--interpret-p' tells which
2027 ;; elements or objects should be seen as real Org syntax and
2028 ;; `org-export-expand' transforms the others back into their original
2029 ;; shape
2030 ;;
2031 ;; `org-export-transcoder' is an accessor returning appropriate
2032 ;; translator function for a given element or object.
2035 "Return appropriate transcoder for BLOB.
2036 INFO is a plist containing export directives."
2038 ;; Return contents only for complete parse trees.
2044 "Convert DATA into current back-end format.
2046 DATA is a parse tree, an element or an object or a secondary
2047 string. INFO is a plist holding export options.
2049 Return transcoded string."
2055 ;; Ignored element/object.
2057 ;; Plain text.
2063 info))
2064 ;; Uninterpreted element/object: change it back to Org
2065 ;; syntax and export again resulting raw string.
2069 data
2073 info))
2074 ;; Secondary string.
2077 ;; Element/Object without contents or, as a special case,
2078 ;; headline with archive tag and archived trees restricted
2079 ;; to title only.
2087 ;; Export snippets never return a nil value so
2088 ;; that white spaces following them are never
2089 ;; ignored.
2091 ;; Element/Object with contents.
2104 ;; Elements directly containing objects
2105 ;; must have their indentation normalized
2106 ;; first.
2108 data
2109 ;; When normalizing contents of the first
2110 ;; paragraph in an item or a footnote
2111 ;; definition, ignore first line's
2112 ;; indentation: there is none and it
2113 ;; might be misleading.
2118 data)
2125 info))))))))
2126 ;; Final result will be memoized before being returned.
2128 data
2132 ;; Append the same white space between elements or objects as in
2133 ;; the original buffer, and call appropriate filters.
2144 info)))
2145 results)))
2149 "Convert DATA into another format using a given translation table.
2150 DATA is an element, an object, a secondary string or a string.
2151 TRANSLATIONS is an alist between element or object types and
2152 a functions handling them. See `org-export-define-backend' for
2153 more information. INFO is a plist used as a communication
2154 channel."
2156 data
2157 ;; Set-up a new communication channel with TRANSLATIONS as the
2158 ;; translate table and a new hash table for memoization.
2160 info
2162 ;; Size of the hash table is reduced since this function
2163 ;; will probably be used on short trees.
2167 "Convert DATA into BACKEND format.
2169 DATA is an element, an object, a secondary string or a string.
2170 BACKEND is a symbol. INFO is a plist used as a communication
2171 channel.
2173 Unlike to `org-export-with-backend', this function will
2174 recursively convert DATA using BACKEND translation table."
2180 "Non-nil if element or object BLOB should be interpreted during export.
2181 If nil, BLOB will appear as raw Org syntax. Check is done
2182 according to export options INFO, stored as a plist."
2184 ;; ... entities...
2186 ;; ... emphasis...
2189 ;; ... fixed-width areas.
2191 ;; ... footnotes...
2194 ;; ... LaTeX environments and fragments...
2198 ;; ... sub/superscripts...
2204 ;; ... tables...
2209 "Expand a parsed element or object to its original state.
2210 BLOB is either an element or an object. CONTENTS is its
2211 contents, as a string or nil."
2214 blob contents))
2217 "Add ELEMENT to `:ignore-list' in INFO.
2219 Any element in `:ignore-list' will be skipped when using
2220 `org-element-map'. INFO is modified by side effects."
2224 \f
2225 ;;; The Filter System
2226 ;;
2227 ;; Filters allow end-users to tweak easily the transcoded output.
2228 ;; They are the functional counterpart of hooks, as every filter in
2229 ;; a set is applied to the return value of the previous one.
2230 ;;
2231 ;; Every set is back-end agnostic. Although, a filter is always
2232 ;; called, in addition to the string it applies to, with the back-end
2233 ;; used as argument, so it's easy for the end-user to add back-end
2234 ;; specific filters in the set. The communication channel, as
2235 ;; a plist, is required as the third argument.
2236 ;;
2237 ;; From the developer side, filters sets can be installed in the
2238 ;; process with the help of `org-export-define-backend', which
2239 ;; internally stores filters as an alist. Each association has a key
2240 ;; among the following symbols and a function or a list of functions
2241 ;; as value.
2242 ;;
2243 ;; - `:filter-options' applies to the property list containing export
2244 ;; options. Unlike to other filters, functions in this list accept
2245 ;; two arguments instead of three: the property list containing
2246 ;; export options and the back-end. Users can set its value through
2247 ;; `org-export-filter-options-functions' variable.
2248 ;;
2249 ;; - `:filter-parse-tree' applies directly to the complete parsed
2250 ;; tree. Users can set it through
2251 ;; `org-export-filter-parse-tree-functions' variable.
2252 ;;
2253 ;; - `:filter-final-output' applies to the final transcoded string.
2254 ;; Users can set it with `org-export-filter-final-output-functions'
2255 ;; variable
2256 ;;
2257 ;; - `:filter-plain-text' applies to any string not recognized as Org
2258 ;; syntax. `org-export-filter-plain-text-functions' allows users to
2259 ;; configure it.
2260 ;;
2261 ;; - `:filter-TYPE' applies on the string returned after an element or
2262 ;; object of type TYPE has been transcoded. An user can modify
2263 ;; `org-export-filter-TYPE-functions'
2264 ;;
2265 ;; All filters sets are applied with
2266 ;; `org-export-filter-apply-functions' function. Filters in a set are
2267 ;; applied in a LIFO fashion. It allows developers to be sure that
2268 ;; their filters will be applied first.
2269 ;;
2270 ;; Filters properties are installed in communication channel with
2271 ;; `org-export-install-filters' function.
2272 ;;
2273 ;; Eventually, two hooks (`org-export-before-processing-hook' and
2274 ;; `org-export-before-parsing-hook') are run at the beginning of the
2275 ;; export process and just before parsing to allow for heavy structure
2276 ;; modifications.
2279 ;;;; Hooks
2282 "Hook run at the beginning of the export process.
2284 This is run before include keywords and macros are expanded and
2285 Babel code blocks executed, on a copy of the original buffer
2286 being exported. Visibility and narrowing are preserved. Point
2287 is at the beginning of the buffer.
2289 Every function in this hook will be called with one argument: the
2293 "Hook run before parsing an export buffer.
2295 This is run after include keywords and macros have been expanded
2296 and Babel code blocks executed, on a copy of the original buffer
2297 being exported. Visibility and narrowing are preserved. Point
2298 is at the beginning of the buffer.
2300 Every function in this hook will be called with one argument: the
2304 ;;;; Special Filters
2307 "List of functions applied to the export options.
2308 Each filter is called with two arguments: the export options, as
2309 a plist, and the back-end, as a symbol. It must return
2313 "List of functions applied to the parsed tree.
2314 Each filter is called with three arguments: the parse tree, as
2315 returned by `org-element-parse-buffer', the back-end, as
2316 a symbol, and the communication channel, as a plist. It must
2320 "List of functions applied to plain text.
2321 Each filter is called with three arguments: a string which
2322 contains no Org syntax, the back-end, as a symbol, and the
2323 communication channel, as a plist. It must return a string or
2327 "List of functions applied to the transcoded string.
2328 Each filter is called with three arguments: the full transcoded
2329 string, the back-end, as a symbol, and the communication channel,
2330 as a plist. It must return a string that will be used as the
2334 ;;;; Elements Filters
2337 "List of functions applied to a transcoded babel-call.
2338 Each filter is called with three arguments: the transcoded data,
2339 as a string, the back-end, as a symbol, and the communication
2343 "List of functions applied to a transcoded center block.
2344 Each filter is called with three arguments: the transcoded data,
2345 as a string, the back-end, as a symbol, and the communication
2349 "List of functions applied to a transcoded clock.
2350 Each filter is called with three arguments: the transcoded data,
2351 as a string, the back-end, as a symbol, and the communication
2355 "List of functions applied to a transcoded comment.
2356 Each filter is called with three arguments: the transcoded data,
2357 as a string, the back-end, as a symbol, and the communication
2361 "List of functions applied to a transcoded comment-block.
2362 Each filter is called with three arguments: the transcoded data,
2363 as a string, the back-end, as a symbol, and the communication
2367 "List of functions applied to a transcoded diary-sexp.
2368 Each filter is called with three arguments: the transcoded data,
2369 as a string, the back-end, as a symbol, and the communication
2373 "List of functions applied to a transcoded drawer.
2374 Each filter is called with three arguments: the transcoded data,
2375 as a string, the back-end, as a symbol, and the communication
2379 "List of functions applied to a transcoded dynamic-block.
2380 Each filter is called with three arguments: the transcoded data,
2381 as a string, the back-end, as a symbol, and the communication
2385 "List of functions applied to a transcoded example-block.
2386 Each filter is called with three arguments: the transcoded data,
2387 as a string, the back-end, as a symbol, and the communication
2391 "List of functions applied to a transcoded export-block.
2392 Each filter is called with three arguments: the transcoded data,
2393 as a string, the back-end, as a symbol, and the communication
2397 "List of functions applied to a transcoded fixed-width.
2398 Each filter is called with three arguments: the transcoded data,
2399 as a string, the back-end, as a symbol, and the communication
2403 "List of functions applied to a transcoded footnote-definition.
2404 Each filter is called with three arguments: the transcoded data,
2405 as a string, the back-end, as a symbol, and the communication
2409 "List of functions applied to a transcoded headline.
2410 Each filter is called with three arguments: the transcoded data,
2411 as a string, the back-end, as a symbol, and the communication
2415 "List of functions applied to a transcoded horizontal-rule.
2416 Each filter is called with three arguments: the transcoded data,
2417 as a string, the back-end, as a symbol, and the communication
2421 "List of functions applied to a transcoded inlinetask.
2422 Each filter is called with three arguments: the transcoded data,
2423 as a string, the back-end, as a symbol, and the communication
2427 "List of functions applied to a transcoded item.
2428 Each filter is called with three arguments: the transcoded data,
2429 as a string, the back-end, as a symbol, and the communication
2433 "List of functions applied to a transcoded keyword.
2434 Each filter is called with three arguments: the transcoded data,
2435 as a string, the back-end, as a symbol, and the communication
2439 "List of functions applied to a transcoded latex-environment.
2440 Each filter is called with three arguments: the transcoded data,
2441 as a string, the back-end, as a symbol, and the communication
2445 "List of functions applied to a transcoded node-property.
2446 Each filter is called with three arguments: the transcoded data,
2447 as a string, the back-end, as a symbol, and the communication
2451 "List of functions applied to a transcoded paragraph.
2452 Each filter is called with three arguments: the transcoded data,
2453 as a string, the back-end, as a symbol, and the communication
2457 "List of functions applied to a transcoded plain-list.
2458 Each filter is called with three arguments: the transcoded data,
2459 as a string, the back-end, as a symbol, and the communication
2463 "List of functions applied to a transcoded planning.
2464 Each filter is called with three arguments: the transcoded data,
2465 as a string, the back-end, as a symbol, and the communication
2469 "List of functions applied to a transcoded property-drawer.
2470 Each filter is called with three arguments: the transcoded data,
2471 as a string, the back-end, as a symbol, and the communication
2475 "List of functions applied to a transcoded quote block.
2476 Each filter is called with three arguments: the transcoded quote
2477 data, as a string, the back-end, as a symbol, and the
2478 communication channel, as a plist. It must return a string or
2482 "List of functions applied to a transcoded quote-section.
2483 Each filter is called with three arguments: the transcoded data,
2484 as a string, the back-end, as a symbol, and the communication
2488 "List of functions applied to a transcoded section.
2489 Each filter is called with three arguments: the transcoded data,
2490 as a string, the back-end, as a symbol, and the communication
2494 "List of functions applied to a transcoded special block.
2495 Each filter is called with three arguments: the transcoded data,
2496 as a string, the back-end, as a symbol, and the communication
2500 "List of functions applied to a transcoded src-block.
2501 Each filter is called with three arguments: the transcoded data,
2502 as a string, the back-end, as a symbol, and the communication
2506 "List of functions applied to a transcoded table.
2507 Each filter is called with three arguments: the transcoded data,
2508 as a string, the back-end, as a symbol, and the communication
2512 "List of functions applied to a transcoded table-cell.
2513 Each filter is called with three arguments: the transcoded data,
2514 as a string, the back-end, as a symbol, and the communication
2518 "List of functions applied to a transcoded table-row.
2519 Each filter is called with three arguments: the transcoded data,
2520 as a string, the back-end, as a symbol, and the communication
2524 "List of functions applied to a transcoded verse block.
2525 Each filter is called with three arguments: the transcoded data,
2526 as a string, the back-end, as a symbol, and the communication
2530 ;;;; Objects Filters
2533 "List of functions applied to transcoded bold text.
2534 Each filter is called with three arguments: the transcoded data,
2535 as a string, the back-end, as a symbol, and the communication
2539 "List of functions applied to transcoded code text.
2540 Each filter is called with three arguments: the transcoded data,
2541 as a string, the back-end, as a symbol, and the communication
2545 "List of functions applied to a transcoded entity.
2546 Each filter is called with three arguments: the transcoded data,
2547 as a string, the back-end, as a symbol, and the communication
2551 "List of functions applied to a transcoded export-snippet.
2552 Each filter is called with three arguments: the transcoded data,
2553 as a string, the back-end, as a symbol, and the communication
2557 "List of functions applied to a transcoded footnote-reference.
2558 Each filter is called with three arguments: the transcoded data,
2559 as a string, the back-end, as a symbol, and the communication
2563 "List of functions applied to a transcoded inline-babel-call.
2564 Each filter is called with three arguments: the transcoded data,
2565 as a string, the back-end, as a symbol, and the communication
2569 "List of functions applied to a transcoded inline-src-block.
2570 Each filter is called with three arguments: the transcoded data,
2571 as a string, the back-end, as a symbol, and the communication
2575 "List of functions applied to transcoded italic text.
2576 Each filter is called with three arguments: the transcoded data,
2577 as a string, the back-end, as a symbol, and the communication
2581 "List of functions applied to a transcoded latex-fragment.
2582 Each filter is called with three arguments: the transcoded data,
2583 as a string, the back-end, as a symbol, and the communication
2587 "List of functions applied to a transcoded line-break.
2588 Each filter is called with three arguments: the transcoded data,
2589 as a string, the back-end, as a symbol, and the communication
2593 "List of functions applied to a transcoded link.
2594 Each filter is called with three arguments: the transcoded data,
2595 as a string, the back-end, as a symbol, and the communication
2599 "List of functions applied to a transcoded macro.
2600 Each filter is called with three arguments: the transcoded data,
2601 as a string, the back-end, as a symbol, and the communication
2605 "List of functions applied to a transcoded radio-target.
2606 Each filter is called with three arguments: the transcoded data,
2607 as a string, the back-end, as a symbol, and the communication
2611 "List of functions applied to a transcoded statistics-cookie.
2612 Each filter is called with three arguments: the transcoded data,
2613 as a string, the back-end, as a symbol, and the communication
2617 "List of functions applied to transcoded strike-through text.
2618 Each filter is called with three arguments: the transcoded data,
2619 as a string, the back-end, as a symbol, and the communication
2623 "List of functions applied to a transcoded subscript.
2624 Each filter is called with three arguments: the transcoded data,
2625 as a string, the back-end, as a symbol, and the communication
2629 "List of functions applied to a transcoded superscript.
2630 Each filter is called with three arguments: the transcoded data,
2631 as a string, the back-end, as a symbol, and the communication
2635 "List of functions applied to a transcoded target.
2636 Each filter is called with three arguments: the transcoded data,
2637 as a string, the back-end, as a symbol, and the communication
2641 "List of functions applied to a transcoded timestamp.
2642 Each filter is called with three arguments: the transcoded data,
2643 as a string, the back-end, as a symbol, and the communication
2647 "List of functions applied to transcoded underline text.
2648 Each filter is called with three arguments: the transcoded data,
2649 as a string, the back-end, as a symbol, and the communication
2653 "List of functions applied to transcoded verbatim text.
2654 Each filter is called with three arguments: the transcoded data,
2655 as a string, the back-end, as a symbol, and the communication
2659 ;;;; Filters Tools
2660 ;;
2661 ;; Internal function `org-export-install-filters' installs filters
2662 ;; hard-coded in back-ends (developer filters) and filters from global
2663 ;; variables (user filters) in the communication channel.
2664 ;;
2665 ;; Internal function `org-export-filter-apply-functions' takes care
2666 ;; about applying each filter in order to a given data. It ignores
2667 ;; filters returning a nil value but stops whenever a filter returns
2668 ;; an empty string.
2671 "Call every function in FILTERS.
2673 Functions are called with arguments VALUE, current export
2674 back-end and INFO. A function returning a nil value will be
2675 skipped. If it returns the empty string, the process ends and
2676 VALUE is ignored.
2678 Call is done in a LIFO fashion, to be sure that developer
2679 specified filters, if any, are called first."
2688 "Install filters properties in communication channel.
2689 INFO is a plist containing the current communication channel.
2690 Return the updated communication channel."
2692 ;; Install user-defined filters with `org-export-filters-alist'
2693 ;; and filters already in INFO (through ext-plist mechanism).
2700 ;; Filters in INFO will be called
2701 ;; before those user provided.
2704 default-value)))))
2705 org-export-filters-alist)
2706 ;; Prepend back-end specific filters to that list.
2708 ;; Single values get consed, lists are appended.
2713 plist key
2717 ;; Return new communication channel.
2721 \f
2722 ;;; Core functions
2723 ;;
2724 ;; This is the room for the main function, `org-export-as', along with
2725 ;; its derivatives, `org-export-to-buffer', `org-export-to-file' and
2726 ;; `org-export-string-as'. They differ either by the way they output
2727 ;; the resulting code (for the first two) or by the input type (for
2728 ;; the latter). `org-export--copy-to-kill-ring-p' determines if
2729 ;; output of these function should be added to kill ring.
2730 ;;
2731 ;; `org-export-output-file-name' is an auxiliary function meant to be
2732 ;; used with `org-export-to-file'. With a given extension, it tries
2733 ;; to provide a canonical file name to write export output to.
2734 ;;
2735 ;; Note that `org-export-as' doesn't really parse the current buffer,
2736 ;; but a copy of it (with the same buffer-local variables and
2737 ;; visibility), where macros and include keywords are expanded and
2738 ;; Babel blocks are executed, if appropriate.
2739 ;; `org-export-with-buffer-copy' macro prepares that copy.
2740 ;;
2741 ;; File inclusion is taken care of by
2742 ;; `org-export-expand-include-keyword' and
2743 ;; `org-export--prepare-file-contents'. Structure wise, including
2744 ;; a whole Org file in a buffer often makes little sense. For
2745 ;; example, if the file contains a headline and the include keyword
2746 ;; was within an item, the item should contain the headline. That's
2747 ;; why file inclusion should be done before any structure can be
2748 ;; associated to the file, that is before parsing.
2751 "Return a copy of the current buffer.
2752 The copy preserves Org buffer-local variables, visibility and
2753 narrowing."
2759 new-buf))
2762 "Apply BODY in a copy of the current buffer.
2763 The copy preserves local variables, visibility and contents of
2764 the original buffer. Point is at the beginning of the buffer
2765 when BODY is applied."
2774 ;; Kill copy without confirmation.
2780 "Generate a function duplicating BUFFER.
2782 The copy will preserve local variables, visibility, contents and
2783 narrowing of the original buffer. If a region was active in
2784 BUFFER, contents will be narrowed to that region instead.
2786 The resulting function can be evaled at a later time, from
2787 another buffer, effectively cloning the original buffer there.
2789 The function assumes BUFFER's major mode is `org-mode'."
2793 ;; Set major mode. Ignore `org-mode-hook' as it has been run
2794 ;; already in BUFFER.
2796 ;; Buffer local variables.
2806 buffer-file-name
2807 buffer-file-coding-system))
2810 ;; Skip unreadable values, as they cannot be
2811 ;; sent to external process.
2815 local-vars)))))
2817 local-vars)
2818 ;; Whole buffer contents.
2823 ;; Narrowing.
2827 ;; Current position of point.
2829 ;; Overlays with invisible property.
2839 ov-set))))
2841 ov-set)))))
2843 ;;;###autoload
2846 "Transcode current Org buffer into BACKEND code.
2848 If narrowing is active in the current buffer, only transcode its
2849 narrowed part.
2851 If a region is active, transcode that region.
2853 When optional argument SUBTREEP is non-nil, transcode the
2854 sub-tree at point, extracting information from the headline
2855 properties first.
2857 When optional argument VISIBLE-ONLY is non-nil, don't export
2858 contents of hidden elements.
2860 When optional argument BODY-ONLY is non-nil, only return body
2861 code, without surrounding template.
2863 Optional argument EXT-PLIST, when provided, is a property list
2864 with external parameters overriding Org default settings, but
2865 still inferior to file-local settings.
2867 Return code as a string."
2871 ;; Narrow buffer to an appropriate region or subtree for
2872 ;; parsing. If parsing subtree, be sure to remove main headline
2873 ;; too.
2881 ;; Initialize communication channel with original buffer
2882 ;; attributes, unavailable in its copy.
2890 tree)
2891 ;; Update communication channel and get parse tree. Buffer
2892 ;; isn't parsed directly. Instead, a temporary copy is
2893 ;; created, where include keywords, macros are expanded and
2894 ;; code blocks are evaluated.
2896 ;; Run first hook with current back-end as argument.
2899 ;; Update macro templates since #+INCLUDE keywords might have
2900 ;; added some new ones.
2904 ;; Update radio targets since keyword inclusion might have
2905 ;; added some more.
2907 ;; Run last hook with current back-end as argument.
2911 ;; Update communication channel with environment. Also
2912 ;; install user's and developer's filters.
2917 ;; Expand export-specific set of macros: {{{author}}},
2918 ;; {{{date}}}, {{{email}}} and {{{title}}}. It must be done
2919 ;; once regular macros have been expanded, since document
2920 ;; keywords may contain one of them.
2926 ;; EMAIL is not a parsed keyword: store it as-is.
2930 ;; Call options filters and update export options. We do not
2931 ;; use `org-export-filter-apply-functions' here since the
2932 ;; arity of such filters is different.
2936 ;; Parse buffer and call parse-tree filter on it.
2941 ;; Now tree is complete, compute its properties and add them
2942 ;; to communication channel.
2946 ;; Eventually transcode TREE. Wrap the resulting string into
2947 ;; a template.
2956 ;; Remove all text properties since they cannot be
2957 ;; retrieved from an external process. Finally call
2958 ;; final-output filter and return result.
2964 info))))))))
2966 ;;;###autoload
2969 "Call `org-export-as' with output to a specified buffer.
2971 BACKEND is the back-end used for transcoding, as a symbol.
2973 BUFFER is the output buffer. If it already exists, it will be
2974 erased first, otherwise, it will be created.
2976 Optional arguments SUBTREEP, VISIBLE-ONLY, BODY-ONLY and
2977 EXT-PLIST are similar to those used in `org-export-as', which
2978 see.
2980 Depending on `org-export-copy-to-kill-ring', add buffer contents
2981 to kill ring. Return buffer."
2988 ;; Maybe add buffer contents to kill ring.
2991 ;; Return buffer.
2992 buffer))
2994 ;;;###autoload
2997 "Call `org-export-as' with output to a specified file.
2999 BACKEND is the back-end used for transcoding, as a symbol. FILE
3000 is the name of the output file, as a string.
3002 Optional arguments SUBTREEP, VISIBLE-ONLY, BODY-ONLY and
3003 EXT-PLIST are similar to those used in `org-export-as', which
3004 see.
3006 Depending on `org-export-copy-to-kill-ring', add file contents
3007 to kill ring. Return output file's name."
3008 ;; Checks for FILE permissions. `write-file' would do the same, but
3009 ;; we'd rather avoid needless transcoding of parse tree.
3011 ;; Insert contents to a temporary buffer and write it to FILE.
3017 ;; Maybe add file contents to kill ring.
3020 ;; Return full path.
3021 file)
3023 ;;;###autoload
3025 "Transcode STRING into BACKEND code.
3027 When optional argument BODY-ONLY is non-nil, only return body
3028 code, without preamble nor postamble.
3030 Optional argument EXT-PLIST, when provided, is a property list
3031 with external parameters overriding Org default settings, but
3032 still inferior to file-local settings.
3034 Return code as a string."
3041 "Return output file's name according to buffer specifications.
3043 EXTENSION is a string representing the output file extension,
3044 with the leading dot.
3046 With a non-nil optional argument SUBTREEP, try to determine
3048 of subtree at point.
3050 When optional argument PUB-DIR is set, use it as the publishing
3051 directory.
3053 When optional argument VISIBLE-ONLY is non-nil, don't export
3054 contents of hidden elements.
3056 Return file name as a string."
3059 ;; File name may come from EXPORT_FILE_NAME subtree
3060 ;; property, assuming point is at beginning of said
3061 ;; sub-tree.
3068 ;; File name may be extracted from buffer's associated
3069 ;; file, if any.
3071 ;; Can't determine file name on our own: Ask user.
3075 "Output file: " pub-dir nil nil nil
3079 ;; Build file name. Enforce EXTENSION over whatever user
3080 ;; may have come up with. PUB-DIR, if defined, always has
3081 ;; precedence over any provided path.
3086 extension))
3089 ;; If writing to OUTPUT-FILE would overwrite original file, append
3090 ;; EXTENSION another time to final name.
3093 output-file)))
3096 "Expand every include keyword in buffer.
3097 Optional argument INCLUDED is a list of included file names along
3098 with their line restriction, when appropriate. It is used to
3099 avoid infinite recursion. Optional argument DIR is the current
3100 working directory. It is used to properly resolve relative
3101 paths."
3108 ;; Extract arguments from keyword's value.
3122 ;; Minimal level of included file defaults to the child
3123 ;; level of the current headline, if any, or one. It
3124 ;; only applies is the file is meant to be included as
3125 ;; an Org one.
3133 ;; Remove keyword.
3138 ;; Check if files has already been parsed. Look after
3139 ;; inclusion lines too, as different parts of the same file
3140 ;; can be included too.
3152 ind-str contents ind-str))))
3160 ind-str env contents ind-str))))
3173 "Prepare the contents of FILE for inclusion and return them as a string.
3175 When optional argument LINES is a string specifying a range of
3176 lines, include only those lines.
3178 Optional argument IND, when non-nil, is an integer specifying the
3179 global indentation of returned contents. Since its purpose is to
3180 allow an included file to stay in the same environment it was
3181 created \(i.e. a list item), it doesn't apply past the first
3182 headline encountered.
3184 Optional argument MINLEVEL, when non-nil, is an integer
3185 specifying the level that any top-level headline in the included
3186 file should have."
3202 ;; Remove blank lines at beginning and end of contents. The logic
3203 ;; behind that removal is that blank lines around include keyword
3204 ;; override blank lines in included file.
3213 ;; If IND is set, preserve indentation of include keyword until
3214 ;; the first headline encountered.
3220 ;; Do not move footnote definitions out of column 0.
3226 ;; When MINLEVEL is specified, compute minimal level for headlines
3227 ;; in the file (CUR-MIN), and remove stars to each headline so
3228 ;; that headlines with minimal level have a level of MINLEVEL.
3238 ;; Only change stars, don't bother moving whole
3239 ;; sections.
3246 "Execute every Babel code in the visible part of current buffer."
3247 ;; Get a pristine copy of current buffer so Babel references can be
3248 ;; properly resolved.
3255 "Return a non-nil value when output should be added to the kill ring.
3256 See also `org-export-copy-to-kill-ring'."
3262 \f
3263 ;;; Tools For Back-Ends
3264 ;;
3265 ;; A whole set of tools is available to help build new exporters. Any
3266 ;; function general enough to have its use across many back-ends
3267 ;; should be added here.
3269 ;;;; For Affiliated Keywords
3270 ;;
3271 ;; `org-export-read-attribute' reads a property from a given element
3272 ;; as a plist. It can be used to normalize affiliated keywords'
3273 ;; syntax.
3274 ;;
3275 ;; Since captions can span over multiple lines and accept dual values,
3276 ;; their internal representation is a bit tricky. Therefore,
3277 ;; `org-export-get-caption' transparently returns a given element's
3278 ;; caption as a secondary string.
3281 "Turn ATTRIBUTE property from ELEMENT into a plist.
3283 When optional argument PROPERTY is non-nil, return the value of
3284 that property within attributes.
3288 properties. All values will become strings except the empty
3296 s)
3301 ;; Ignore any string before the first property with `cdr'.
3304 s)
3305 result))))))))
3309 "Return caption from ELEMENT as a secondary string.
3311 When optional argument SHORTP is non-nil, return short caption,
3312 as a secondary string, instead.
3314 Caption lines are separated by a white space."
3322 ;;;; For Derived Back-ends
3323 ;;
3324 ;; `org-export-with-backend' is a function allowing to locally use
3325 ;; another back-end to transcode some object or element. In a derived
3326 ;; back-end, it may be used as a fall-back function once all specific
3327 ;; cases have been treated.
3330 "Call a transcoder from BACK-END on DATA.
3331 CONTENTS, when non-nil, is the transcoded contents of DATA
3332 element, as a string. INFO, when non-nil, is the communication
3333 channel used for export, as a plist.."
3343 ;;;; For Export Snippets
3344 ;;
3345 ;; Every export snippet is transmitted to the back-end. Though, the
3346 ;; latter will only retain one type of export-snippet, ignoring
3347 ;; others, based on the former's target back-end. The function
3348 ;; `org-export-snippet-backend' returns that back-end for a given
3349 ;; export-snippet.
3352 "Return EXPORT-SNIPPET targeted back-end as a symbol.
3353 Translation, with `org-export-snippet-translation-alist', is
3354 applied."
3358 back-end))))
3361 ;;;; For Footnotes
3362 ;;
3363 ;; `org-export-collect-footnote-definitions' is a tool to list
3364 ;; actually used footnotes definitions in the whole parse tree, or in
3365 ;; a headline, in order to add footnote listings throughout the
3366 ;; transcoded data.
3367 ;;
3368 ;; `org-export-footnote-first-reference-p' is a predicate used by some
3369 ;; back-ends, when they need to attach the footnote definition only to
3370 ;; the first occurrence of the corresponding label.
3371 ;;
3372 ;; `org-export-get-footnote-definition' and
3373 ;; `org-export-get-footnote-number' provide easier access to
3374 ;; additional information relative to a footnote reference.
3377 "Return an alist between footnote numbers, labels and definitions.
3379 DATA is the parse tree from which definitions are collected.
3380 INFO is the plist used as a communication channel.
3382 Definitions are sorted by order of references. They either
3383 appear as Org data or as a secondary string for inlined
3384 footnotes. Unreferenced definitions are ignored."
3386 collect-fn ; for byte-compiler.
3390 ;; Collect footnote number, label and definition in DATA.
3398 def)
3399 num-alist)
3400 ;; Also search in definition for nested footnotes.
3403 ;; Don't enter footnote definitions since it will happen
3404 ;; when their first reference is found.
3410 "Non-nil when a footnote reference is the first one for its label.
3412 FOOTNOTE-REFERENCE is the footnote reference being considered.
3413 INFO is the plist used as a communication channel."
3415 ;; Anonymous footnotes are always a first reference.
3417 ;; Otherwise, return the first footnote with the same LABEL and
3418 ;; test if it is equal to FOOTNOTE-REFERENCE.
3428 ;; If FN isn't inlined, be sure to traverse its
3429 ;; definition before resuming search. See
3430 ;; comments in `org-export-get-footnote-number'
3431 ;; for more information.
3435 ;; Don't enter footnote definitions since it will
3436 ;; happen when their first reference is found.
3439 footnote-reference)))))
3442 "Return definition of FOOTNOTE-REFERENCE as parsed data.
3443 INFO is the plist used as a communication channel. If no such
3445 string."
3452 "Return number associated to a footnote.
3454 FOOTNOTE is either a footnote reference or a footnote definition.
3455 INFO is the plist used as a communication channel."
3457 seen-refs
3458 search-ref ; For byte-compiler.
3462 ;; Search footnote references through DATA, filling
3463 ;; SEEN-REFS along the way.
3468 ;; Anonymous footnote match: return number.
3471 ;; Labels match: return number.
3474 ;; Anonymous footnote: it's always a new one.
3475 ;; Also, be sure to return nil from the `cond' so
3476 ;; `first-match' doesn't get us out of the loop.
3478 ;; Label not seen so far: add it so SEEN-REFS.
3479 ;;
3480 ;; Also search for subsequent references in
3481 ;; footnote definition so numbering follows
3482 ;; reading logic. Note that we don't have to care
3483 ;; about inline definitions, since
3484 ;; `org-element-map' already traverses them at the
3485 ;; right time.
3486 ;;
3487 ;; Once again, return nil to stay in the loop.
3492 nil))))
3493 ;; Don't enter footnote definitions since it will
3494 ;; happen when their first reference is found.
3499 ;;;; For Headlines
3500 ;;
3501 ;; `org-export-get-relative-level' is a shortcut to get headline
3502 ;; level, relatively to the lower headline level in the parsed tree.
3503 ;;
3504 ;; `org-export-get-headline-number' returns the section number of an
3505 ;; headline, while `org-export-number-to-roman' allows to convert it
3506 ;; to roman numbers.
3507 ;;
3508 ;; `org-export-low-level-p', `org-export-first-sibling-p' and
3509 ;; `org-export-last-sibling-p' are three useful predicates when it
3510 ;; comes to fulfill the `:headline-levels' property.
3511 ;;
3512 ;; `org-export-get-tags', `org-export-get-category' and
3513 ;; `org-export-get-node-property' extract useful information from an
3514 ;; headline or a parent headline. They all handle inheritance.
3515 ;;
3516 ;; `org-export-get-alt-title' tries to retrieve an alternative title,
3517 ;; as a secondary string, suitable for table of contents. It falls
3518 ;; back onto default title.
3521 "Return HEADLINE relative level within current parsed tree.
3522 INFO is a plist holding contextual information."
3527 "Non-nil when HEADLINE is considered as low level.
3529 INFO is a plist used as a communication channel.
3531 A low level headlines has a relative level greater than
3532 `:headline-levels' property value.
3534 Return value is the difference between HEADLINE relative level
3535 and the last level being considered as high enough, or nil."
3542 "Return HEADLINE numbering as a list of numbers.
3543 INFO is a plist holding contextual information."
3547 "Return a non-nil value if HEADLINE element should be numbered.
3548 INFO is a plist used as a communication channel."
3554 "Convert integer N into a roman numeral."
3567 res)))
3570 "Return list of tags associated to ELEMENT.
3572 ELEMENT has either an `headline' or an `inlinetask' type. INFO
3573 is a plist used as a communication channel.
3575 Select tags (see `org-export-select-tags') and exclude tags (see
3576 `org-export-exclude-tags') are removed from the list.
3578 When non-nil, optional argument TAGS should be a list of strings.
3579 Any tag belonging to this list will also be removed.
3581 When optional argument INHERITED is non-nil, tags can also be
3582 inherited from parent headlines and FILETAGS keywords."
3588 ;; Build complete list of inherited tags.
3599 ;; Add FILETAGS keywords and return results.
3603 "Return node PROPERTY value for BLOB.
3605 PROPERTY is an upcase symbol (i.e. `:COOKIE_DATA'). BLOB is an
3606 element or object.
3608 If optional argument INHERITED is non-nil, the value can be
3609 inherited from a parent headline.
3611 Return value is a string or nil."
3623 "Return category for element or object BLOB.
3625 INFO is a plist used as a communication channel.
3627 CATEGORY is automatically inherited from a parent headline, from
3628 #+CATEGORY: keyword or created out of original file name. If all
3632 ;; Almost like `org-export-node-property', but we cannot trust
3633 ;; `plist-member' as every headline has a `:CATEGORY'
3634 ;; property, would it be nil or equal to "???" (which has the
3635 ;; same meaning).
3653 "Return alternative title for HEADLINE, as a secondary string.
3654 INFO is a plist used as a communication channel. If no optional
3655 title is defined, fall-back to the regular title."
3660 "Non-nil when HEADLINE is the first sibling in its sub-tree.
3661 INFO is a plist used as a communication channel."
3666 "Non-nil when HEADLINE is the last sibling in its sub-tree.
3667 INFO is a plist used as a communication channel."
3671 ;;;; For Links
3672 ;;
3673 ;; `org-export-solidify-link-text' turns a string into a safer version
3674 ;; for links, replacing most non-standard characters with hyphens.
3675 ;;
3676 ;; `org-export-get-coderef-format' returns an appropriate format
3677 ;; string for coderefs.
3678 ;;
3679 ;; `org-export-inline-image-p' returns a non-nil value when the link
3680 ;; provided should be considered as an inline image.
3681 ;;
3682 ;; `org-export-resolve-fuzzy-link' searches destination of fuzzy links
3683 ;; (i.e. links with "fuzzy" as type) within the parsed tree, and
3684 ;; returns an appropriate unique identifier when found, or nil.
3685 ;;
3686 ;; `org-export-resolve-id-link' returns the first headline with
3687 ;; specified id or custom-id in parse tree, the path to the external
3688 ;; file with the id or nil when neither was found.
3689 ;;
3690 ;; `org-export-resolve-coderef' associates a reference to a line
3691 ;; number in the element it belongs, or returns the reference itself
3692 ;; when the element isn't numbered.
3695 "Take link text S and make a safe target out of it."
3700 "Return format string for code reference link.
3701 PATH is the link path. DESC is its description."
3709 "Non-nil if LINK object points to an inline image.
3711 Optional argument is a set of RULES defining inline images. It
3712 is an alist where associations have the following shape:
3714 \(TYPE . REGEXP)
3716 Applying a rule means apply REGEXP against LINK's path when its
3717 type is TYPE. The function will return a non-nil value if any of
3718 the provided rules is non-nil. The default rule is
3719 `org-export-default-inline-image-rule'.
3721 This only applies to links without a description."
3732 rules)
3733 ;; Return nil if no rule matched.
3734 nil))))
3737 "Resolve a code reference REF.
3739 INFO is a plist used as a communication channel.
3741 Return associated line number in source code, or REF itself,
3742 depending on src-block or example element's switches."
3749 org-coderef-label-format)))
3753 ;; Element containing REF is found. Resolve it to either
3754 ;; a label or a line number, as needed.
3764 "Return LINK destination.
3766 INFO is a plist holding contextual information.
3768 Return value can be an object, an element, or nil:
3770 - If LINK path matches a target object (i.e. <<path>>) or
3773 - If LINK path exactly matches the name affiliated keyword
3774 \(i.e. #+NAME: path) of an element, return that element.
3776 - If LINK path exactly matches any headline name, return that
3777 element. If more than one headline share that name, priority
3778 will be given to the one with the closest common ancestor, if
3779 any, or the first one in the parse tree otherwise.
3781 - Otherwise, return nil.
3784 significant."
3787 ;; Split PATH at white spaces so matches are space
3788 ;; insensitive.
3792 ;; First try to find a matching "<<path>>" unless user specified
3793 ;; he was looking for a headline (path starts with a *
3794 ;; character).
3801 path)
3802 blob))
3803 info t)))
3804 ;; Then try to find an element with a matching "#+NAME: path"
3805 ;; affiliated keyword.
3808 org-element-all-elements
3813 ;; Last case: link either points to a headline or to
3814 ;; nothingness. Try to find the source, with priority given to
3815 ;; headlines with the closest common ancestor. If such candidate
3816 ;; is found, return it, otherwise return nil.
3820 ;; Return first headline whose `:raw-value' property is
3821 ;; NAME in parse tree DATA, or nil. Statistics cookies
3822 ;; are ignored.
3830 name)
3831 headline))
3833 ;; Search among headlines sharing an ancestor with link, from
3834 ;; closest to farthest.
3842 ;; No match with a common ancestor: try full parse-tree.
3846 "Return headline referenced as LINK destination.
3848 INFO is a plist used as a communication channel.
3850 Return value can be the headline element matched in current parse
3854 ;; First check if id is within the current parse tree.
3859 headline))
3861 ;; Otherwise, look for external files.
3865 "Return radio-target object referenced as LINK destination.
3867 INFO is a plist used as a communication channel.
3869 Return value can be a radio-target object or nil. Assume LINK
3876 radio))
3880 ;;;; For References
3881 ;;
3882 ;; `org-export-get-ordinal' associates a sequence number to any object
3883 ;; or element.
3886 "Return ordinal number of an element or object.
3888 ELEMENT is the element or object considered. INFO is the plist
3889 used as a communication channel.
3891 Optional argument TYPES, when non-nil, is a list of element or
3892 object types, as symbols, that should also be counted in.
3893 Otherwise, only provided element's type is considered.
3895 Optional argument PREDICATE is a function returning a non-nil
3896 value if the current element or object should be counted in. It
3897 accepts two arguments: the element or object being considered and
3898 the plist used as a communication channel. This allows to count
3899 only a certain type of objects (i.e. inline images).
3901 Return value is a list of numbers if ELEMENT is a headline or an
3902 item. It is nil for keywords. It represents the footnote number
3903 for footnote definitions and footnote references. If ELEMENT is
3904 a target, return the same value as if ELEMENT was the closest
3905 table, item or headline containing the target. In any other
3906 case, return the sequence number of ELEMENT among elements or
3907 objects of the same type."
3908 ;; A target keyword, representing an invisible target, never has
3909 ;; a sequence number.
3911 ;; Ordinal of a target object refer to the ordinal of the closest
3912 ;; table, item, or headline containing the object.
3916 when
3920 table))
3921 return parent)))
3923 ;; Special case 1: A headline returns its number as a list.
3925 ;; Special case 2: An item returns its number as a list.
3929 struct
3936 ;; Increment counter until ELEMENT is found again.
3947 ;;;; For Src-Blocks
3948 ;;
3949 ;; `org-export-get-loc' counts number of code lines accumulated in
3950 ;; src-block or example-block elements with a "+n" switch until
3951 ;; a given element, excluded. Note: "-n" switches reset that count.
3952 ;;
3953 ;; `org-export-unravel-code' extracts source code (along with a code
3954 ;; references alist) from an `element-block' or `src-block' type
3955 ;; element.
3956 ;;
3957 ;; `org-export-format-code' applies a formatting function to each line
3958 ;; of code, providing relative line number and code reference when
3959 ;; appropriate. Since it doesn't access the original element from
3960 ;; which the source code is coming, it expects from the code calling
3961 ;; it to know if lines should be numbered and if code references
3962 ;; should appear.
3963 ;;
3964 ;; Eventually, `org-export-format-code-default' is a higher-level
3965 ;; function (it makes use of the two previous functions) which handles
3966 ;; line numbering and code references inclusion, and returns source
3967 ;; code in a format suitable for plain text or verbatim output.
3970 "Return accumulated lines of code up to ELEMENT.
3972 INFO is the plist used as a communication channel.
3974 ELEMENT is excluded from count."
3980 ;; ELEMENT is reached: Quit the loop.
3982 ;; Only count lines from src-block and example-block elements
3983 ;; with a "+n" or "-n" switch. A "-n" switch resets counter.
3987 ;; Accumulate locs or reset them.
3991 ;; Return nil to stay in the loop.
3992 nil)))
3994 ;; Return value.
3995 loc))
3998 "Clean source code and extract references out of it.
4000 ELEMENT has either a `src-block' an `example-block' type.
4002 Return a cons cell whose CAR is the source code, cleaned from any
4003 reference and protective comma and CDR is an alist between
4004 relative line number (integer) and name of code reference on that
4005 line (string)."
4007 ;; Get code and clean it. Remove blank lines at its
4008 ;; beginning and end.
4014 ;; If appropriate, remove global indentation.
4017 c
4019 ;; Get format used for references.
4022 org-coderef-label-format)))
4023 ;; Build a regexp matching a loc with a reference.
4028 ;; Return value.
4030 ;; Code with references removed.
4036 ;; Ref line: remove ref, and signal its position in REFS.
4040 ;; Reference alist.
4041 refs)))
4044 "Format CODE by applying FUN line-wise and return it.
4046 CODE is a string representing the code to format. FUN is
4047 a function. It must accept three arguments: a line of
4048 code (string), the current line number (integer) or nil and the
4049 reference associated to the current line (string) or nil.
4051 Optional argument NUM-LINES can be an integer representing the
4052 number of code lines accumulated until the current code. Line
4053 numbers passed to FUN will take it into account. If it is nil,
4054 FUN's second argument will always be nil. This number can be
4055 obtained with `org-export-get-loc' function.
4057 Optional argument REF-ALIST can be an alist between relative line
4058 number (i.e. ignoring NUM-LINES) and the name of the code
4059 reference on it. If it is nil, FUN's third argument will always
4060 be nil. It can be obtained through the use of
4061 `org-export-unravel-code' function."
4073 "Return source code from ELEMENT, formatted in a standard way.
4075 ELEMENT is either a `src-block' or `example-block' element. INFO
4076 is a plist used as a communication channel.
4078 This function takes care of line numbering and code references
4079 inclusion. Line numbers, when applicable, appear at the
4080 beginning of the line, separated from the code by two white
4081 spaces. Code references, on the other hand, appear flushed to
4082 the right, separated by six white spaces from the widest line of
4083 code."
4084 ;; Extract code and references.
4091 ;; Handle line numbering.
4100 ;; Prepare references display, if required. Any reference
4101 ;; should start six columns after the widest line of code,
4102 ;; wrapped with parenthesis.
4107 code
4111 number-str
4112 loc
4118 num-start refs)))))
4121 ;;;; For Tables
4122 ;;
4123 ;; `org-export-table-has-special-column-p' and and
4124 ;; `org-export-table-row-is-special-p' are predicates used to look for
4125 ;; meta-information about the table structure.
4126 ;;
4127 ;; `org-table-has-header-p' tells when the rows before the first rule
4128 ;; should be considered as table's header.
4129 ;;
4130 ;; `org-export-table-cell-width', `org-export-table-cell-alignment'
4131 ;; and `org-export-table-cell-borders' extract information from
4132 ;; a table-cell element.
4133 ;;
4134 ;; `org-export-table-dimensions' gives the number on rows and columns
4135 ;; in the table, ignoring horizontal rules and special columns.
4136 ;; `org-export-table-cell-address', given a table-cell object, returns
4137 ;; the absolute address of a cell. On the other hand,
4138 ;; `org-export-get-table-cell-at' does the contrary.
4139 ;;
4140 ;; `org-export-table-cell-starts-colgroup-p',
4141 ;; `org-export-table-cell-ends-colgroup-p',
4142 ;; `org-export-table-row-starts-rowgroup-p',
4143 ;; `org-export-table-row-ends-rowgroup-p',
4144 ;; `org-export-table-row-starts-header-p' and
4145 ;; `org-export-table-row-ends-header-p' indicate position of current
4146 ;; row or cell within the table.
4149 "Non-nil when TABLE has a special column.
4150 All special columns will be ignored during export."
4151 ;; The table has a special column when every first cell of every row
4152 ;; has an empty value or contains a symbol among "/", "#", "!", "$",
4153 ;; "*" "_" and "^". Though, do not consider a first row containing
4154 ;; only empty cells as special.
4170 "Non-nil when TABLE has an header.
4172 INFO is a plist used as a communication channel.
4174 A table has an header when it contains at least two row groups."
4184 info)))
4187 "Non-nil if TABLE-ROW is considered special.
4189 INFO is a plist used as the communication channel.
4191 All special rows will be ignored during export."
4195 ;; A row is special either when...
4197 ;; ... it starts with a field only containing "/",
4199 ;; ... the table contains a special column and the row start
4200 ;; with a marking character among, "^", "_", "$" or "!",
4204 ;; ... it contains only alignment cookies and empty cells.
4210 ;; Since VALUE is a secondary string, the following
4211 ;; checks avoid expanding it with `org-export-data'.
4223 "Return TABLE-ROW's group.
4225 INFO is a plist used as the communication channel.
4227 Return value is the group number, as an integer, or nil special
4228 rows and table rules. Group 1 is also table's header."
4245 "Return TABLE-CELL contents width.
4247 INFO is a plist used as the communication channel.
4249 Return value is the width given by the last width cookie in the
4250 same column as TABLE-CELL, or nil."
4255 cookie-width)
4259 ;; In a special row, try to find a width cookie at COLUMN.
4263 ;; The following checks avoid expanding unnecessarily the
4264 ;; cell with `org-export-data'
4272 ;; Ignore table rules.
4275 ;; Return value.
4276 cookie-width))
4279 "Return TABLE-CELL contents alignment.
4281 INFO is a plist used as the communication channel.
4283 Return alignment as specified by the last alignment cookie in the
4284 same column as TABLE-CELL. If no such cookie is found, a default
4285 alignment value will be deduced from fraction of numbers in the
4286 column (see `org-table-number-fraction' for more information).
4287 Possible values are `left', `right' and `center'."
4294 cookie-align
4295 previous-cell-number-p)
4299 ;; In a special row, try to find an alignment cookie at
4300 ;; COLUMN.
4304 ;; Since VALUE is a secondary string, the following checks
4305 ;; avoid useless expansion through `org-export-data'.
4313 ;; Ignore table rules.
4315 ;; In a standard row, check if cell's contents are expressing
4316 ;; some kind of number. Increase NUMBER-CELLS accordingly.
4317 ;; Though, don't bother if an alignment cookie has already
4318 ;; defined cell's alignment.
4323 info)))
4325 ;; Treat an empty cell as a number if it follows a number
4332 ;; Return value. Alignment specified by cookies has precedence
4333 ;; over alignment deduced from cells contents.
4342 "Return TABLE-CELL borders.
4344 INFO is a plist used as a communication channel.
4346 Return value is a list of symbols, or nil. Possible values are:
4347 `top', `bottom', `above', `below', `left' and `right'. Note:
4348 `top' (resp. `bottom') only happen for a cell in the first
4349 row (resp. last row) of the table, ignoring table rules, if any.
4351 Returned borders ignore special rows."
4354 borders)
4355 ;; Top/above border? TABLE-CELL has a border above when a rule
4356 ;; used to demarcate row groups can be found above. Hence,
4357 ;; finding a rule isn't sufficient to push `above' in BORDERS:
4358 ;; another regular row has to be found above that rule.
4367 ;; Look at every row before the current one.
4369 ;; No rule above, or rule found starts the table (ignoring any
4370 ;; special row): TABLE-CELL is at the top of the table.
4373 ;; Bottom/below border? TABLE-CELL has a border below when next
4374 ;; non-regular row below is a rule.
4383 ;; Look at every row after the current one.
4385 ;; No rule below, or rule found ends the table (modulo some
4386 ;; special row): TABLE-CELL is at the bottom of the table.
4389 ;; Right/left borders? They can only be specified by column
4390 ;; groups. Column groups are defined in a row starting with "/".
4391 ;; Also a column groups row only contains "<", "<>", ">" or blank
4392 ;; cells.
4409 ;; There's a left border when previous cell, if
4410 ;; any, ends a group, or current one starts one.
4416 ;; There's a right border when next cell, if any,
4417 ;; starts a group, or current one ends one.
4424 ;; Table rows are read in reverse order so last column groups
4425 ;; row has precedence over any previous one.
4427 ;; Return value.
4428 borders))
4431 "Non-nil when TABLE-CELL is at the beginning of a row group.
4432 INFO is a plist used as a communication channel."
4433 ;; A cell starts a column group either when it is at the beginning
4434 ;; of a row (or after the special column, if any) or when it has
4435 ;; a left border.
4438 table-cell)
4442 "Non-nil when TABLE-CELL is at the end of a row group.
4443 INFO is a plist used as a communication channel."
4444 ;; A cell ends a column group either when it is at the end of a row
4445 ;; or when it has a right border.
4448 table-cell)
4452 "Non-nil when TABLE-ROW is at the beginning of a column group.
4453 INFO is a plist used as a communication channel."
4461 "Non-nil when TABLE-ROW is at the end of a column group.
4462 INFO is a plist used as a communication channel."
4470 "Non-nil when TABLE-ROW is the first table header's row.
4471 INFO is a plist used as a communication channel."
4478 "Non-nil when TABLE-ROW is the last table header's row.
4479 INFO is a plist used as a communication channel."
4486 "Return TABLE dimensions.
4488 INFO is a plist used as a communication channel.
4490 Return value is a CONS like (ROWS . COLUMNS) where
4491 ROWS (resp. COLUMNS) is the number of exportable
4492 rows (resp. columns)."
4494 ;; Set number of rows, and extract first one.
4500 ;; Set number of columns.
4502 ;; Return value.
4506 "Return address of a regular TABLE-CELL object.
4508 TABLE-CELL is the cell considered. INFO is a plist used as
4509 a communication channel.
4511 Address is a CONS cell (ROW . COLUMN), where ROW and COLUMN are
4512 zero-based index. Only exportable cells are considered. The
4513 function returns nil for other cells."
4516 ;; Ignore cells in special rows or in special column.
4521 ;; Row number.
4529 ;; Column number.
4537 "Return regular table-cell object at ADDRESS in TABLE.
4539 Address is a CONS cell (ROW . COLUMN), where ROW and COLUMN are
4540 zero-based index. TABLE is a table type element. INFO is
4541 a plist used as a communication channel.
4543 If no table-cell, among exportable cells, is found at ADDRESS,
4544 return nil."
4547 ;; Row at (car address) or nil.
4555 'table-cell
4562 ;;;; For Tables Of Contents
4563 ;;
4564 ;; `org-export-collect-headlines' builds a list of all exportable
4565 ;; headline elements, maybe limited to a certain depth. One can then
4566 ;; easily parse it and transcode it.
4567 ;;
4568 ;; Building lists of tables, figures or listings is quite similar.
4569 ;; Once the generic function `org-export-collect-elements' is defined,
4570 ;; `org-export-collect-tables', `org-export-collect-figures' and
4571 ;; `org-export-collect-listings' can be derived from it.
4574 "Collect headlines in order to build a table of contents.
4576 INFO is a plist used as a communication channel.
4578 When optional argument N is an integer, it specifies the depth of
4579 the table of contents. Otherwise, it is set to the value of the
4580 last headline level. See `org-export-headline-levels' for more
4581 information.
4583 Return a list of all exportable headlines as parsed elements.
4584 Footnote sections, if any, will be ignored."
4589 ;; Strip contents from HEADLINE.
4592 info))
4595 "Collect referenceable elements of a determined type.
4597 TYPE can be a symbol or a list of symbols specifying element
4598 types to search. Only elements with a caption are collected.
4600 INFO is a plist used as a communication channel.
4602 When non-nil, optional argument PREDICATE is a function accepting
4603 one argument, an element of type TYPE. It returns a non-nil
4604 value when that element should be collected.
4606 Return a list of all elements found, in order of appearance."
4611 element))
4612 info))
4615 "Build a list of tables.
4616 INFO is a plist used as a communication channel.
4618 Return a list of table elements with a caption."
4622 "Build a list of figures.
4624 INFO is a plist used as a communication channel. PREDICATE is
4625 a function which accepts one argument: a paragraph element and
4626 whose return value is non-nil when that element should be
4627 collected.
4629 A figure is a paragraph type element, with a caption, verifying
4631 a vague concept that may depend on back-end.
4633 Return a list of elements recognized as figures."
4637 "Build a list of src blocks.
4639 INFO is a plist used as a communication channel.
4641 Return a list of src-block elements with a caption."
4645 ;;;; Smart Quotes
4646 ;;
4647 ;; The main function for the smart quotes sub-system is
4648 ;; `org-export-activate-smart-quotes', which replaces every quote in
4649 ;; a given string from the parse tree with its "smart" counterpart.
4650 ;;
4651 ;; Dictionary for smart quotes is stored in
4652 ;; `org-export-smart-quotes-alist'.
4653 ;;
4654 ;; Internally, regexps matching potential smart quotes (checks at
4655 ;; string boundaries are also necessary) are defined in
4656 ;; `org-export-smart-quotes-regexps'.
4693 "Smart quotes translations.
4695 Alist whose CAR is a language string and CDR is an alist with
4696 quote type as key and a plist associating various encodings to
4697 their translation as value.
4699 A quote type can be any symbol among `opening-double-quote',
4700 `closing-double-quote', `opening-single-quote',
4701 `closing-single-quote' and `apostrophe'.
4703 Valid encodings include `:utf-8', `:html', `:latex' and
4704 `:texinfo'.
4710 ;; Possible opening quote at beginning of string.
4712 ;; Possible closing quote at beginning of string.
4714 ;; Possible apostrophe at beginning of string.
4716 ;; Opening single and double quotes.
4718 ;; Closing single and double quotes.
4720 ;; Apostrophe.
4722 ;; Possible opening quote at end of string.
4724 ;; Possible closing quote at end of string.
4726 ;; Possible apostrophe at end of string.
4728 "List of regexps matching a quote or an apostrophe.
4734 ENCODING is a symbol among `:html', `:latex', `:texinfo' and
4735 `:utf-8'. INFO is a plist used as a communication channel.
4737 The function has to retrieve information about string
4738 surroundings in parse tree. It can only happen with an
4739 unmodified string. Thus, if S has already been through another
4740 process, a non-nil ORIGINAL optional argument will provide that
4741 original string.
4743 Return the new string."
4746 ;; Try to be flexible when computing number of blanks
4747 ;; before object. The previous object may be a string
4748 ;; introduced by the back-end and not completely parsed.
4751 ;; A string with missing `:post-blank'
4752 ;; property.
4756 ;; Fallback value.
4761 ;; Return smart quote associated to a give quote Q, as
4762 ;; a string. TYPE is a symbol among `open', `close' and
4763 ;; `apostrophe'.
4773 org-export-smart-quotes-alist))))
4774 encoding)
4775 q)))))
4777 ;; Only a quote: no regexp can match. We have to check both
4778 ;; sides and decide what to do.
4786 ;; 1. Replace quote character at the beginning of S.
4788 ;; Apostrophe?
4794 ;; Closing quote?
4800 ;; Opening quote?
4806 ;; 2. Replace quotes in the middle of the string.
4808 ;; Opening quotes.
4814 ;; Closing quotes.
4820 ;; Apostrophes.
4825 ;; 3. Replace quote character at the end of S.
4827 ;; Apostrophe?
4832 ;; Closing quote?
4838 ;; Opening quote?
4843 ;; Return string with smart quotes.
4844 s))))
4846 ;;;; Topology
4847 ;;
4848 ;; Here are various functions to retrieve information about the
4849 ;; neighbourhood of a given element or object. Neighbours of interest
4850 ;; are direct parent (`org-export-get-parent'), parent headline
4851 ;; (`org-export-get-parent-headline'), first element containing an
4852 ;; object, (`org-export-get-parent-element'), parent table
4853 ;; (`org-export-get-parent-table'), previous element or object
4854 ;; (`org-export-get-previous-element') and next element or object
4855 ;; (`org-export-get-next-element').
4856 ;;
4857 ;; `org-export-get-genealogy' returns the full genealogy of a given
4858 ;; element or object, from closest parent to full parse tree.
4861 "Return BLOB parent or nil.
4862 BLOB is the element or object considered."
4866 "Return full genealogy relative to a given element or object.
4868 BLOB is the element or object being considered.
4870 Ancestors are returned from closest to farthest, the last one
4871 being the full parse tree."
4878 "Return BLOB parent headline or nil.
4879 BLOB is the element or object being considered."
4883 parent))
4886 "Return first element containing OBJECT or nil.
4887 OBJECT is the object to consider."
4891 parent))
4894 "Return OBJECT parent table or nil.
4895 OBJECT is either a `table-cell' or `table-element' type object."
4899 parent))
4902 "Return previous element or object.
4904 BLOB is an element or object. INFO is a plist used as
4905 a communication channel. Return previous exportable element or
4906 object, a string, or nil.
4908 When optional argument N is a positive integer, return a list
4909 containing up to N siblings before BLOB, from farthest to
4910 closest. With any other non-nil value, return a list containing
4911 all of them."
4913 ;; An object can belong to the contents of its parent or
4914 ;; to a secondary string. We check the latter option
4915 ;; first.
4918 org-element-all-elements))
4922 org-element-secondary-value-alist))
4923 parent)))
4926 prev)
4935 prev)))
4938 "Return next element or object.
4940 BLOB is an element or object. INFO is a plist used as
4941 a communication channel. Return next exportable element or
4942 object, a string, or nil.
4944 When optional argument N is a positive integer, return a list
4945 containing up to N siblings after BLOB, from closest to farthest.
4946 With any other non-nil value, return a list containing all of
4947 them."
4949 ;; An object can belong to the contents of its parent or to
4950 ;; a secondary string. We check the latter option first.
4953 org-element-all-objects))
4957 org-element-secondary-value-alist))
4958 parent)))
4961 next)
4969 siblings)
4973 ;;;; Translation
4974 ;;
4975 ;; `org-export-translate' translates a string according to language
4976 ;; specified by LANGUAGE keyword or `org-export-language-setup'
4977 ;; variable and a specified charset. `org-export-dictionary' contains
4978 ;; the dictionary used for the translation.
5100 "Dictionary for export engine.
5102 Alist whose CAR is the string to translate and CDR is an alist
5103 whose CAR is the language string and CDR is a plist whose
5104 properties are possible charsets and values translated terms.
5106 It is used as a database for `org-export-translate'. Since this
5107 function returns the string as-is if no translation was found,
5108 the variable only needs to record values different from the
5112 "Translate string S according to language specification.
5114 ENCODING is a symbol among `:ascii', `:html', `:latex', `:latin1'
5115 and `:utf-8'. INFO is a plist used as a communication channel.
5117 Translation depends on `:language' property. Return the
5118 translated string. If no translation is found, try to fall back
5119 to `:default' encoding. If it fails, return S."
5125 s)))
5128 \f
5129 ;;; Asynchronous Export
5130 ;;
5131 ;; `org-export-async-start' is the entry point for asynchronous
5132 ;; export. It recreates current buffer (including visibility,
5133 ;; narrowing and visited file) in an external Emacs process, and
5134 ;; evaluates a command there. It then applies a function on the
5135 ;; returned results in the current process.
5136 ;;
5137 ;; Asynchronously generated results are never displayed directly.
5138 ;; Instead, they are stored in `org-export-stack-contents'. They can
5139 ;; then be retrieved by calling `org-export-stack'.
5140 ;;
5141 ;; Export Stack is viewed through a dedicated major mode
5142 ;;`org-export-stack-mode' and tools: `org-export-stack-refresh',
5143 ;;`org-export-stack-delete', `org-export-stack-view' and
5144 ;;`org-export-stack-clear'.
5145 ;;
5146 ;; For back-ends, `org-export-add-to-stack' add a new source to stack.
5147 ;; It should used whenever `org-export-async-start' is called.
5150 "Call function FUN on the results returned by BODY evaluation.
5152 BODY evaluation happens in an asynchronous process, from a buffer
5153 which is an exact copy of the current one.
5155 Use `org-export-add-to-stack' in FUN in order to register results
5156 in the stack. Examples for, respectively a temporary buffer and
5157 a file are:
5159 \(org-export-async-start
5160 \(lambda (output)
5162 \(erase-buffer)
5163 \(insert output)
5164 \(goto-char (point-min))
5165 \(org-export-add-to-stack (current-buffer) 'backend)))
5166 `(org-export-as 'backend ,subtreep ,visible-only ,body-only ',ext-plist))
5168 and
5170 \(org-export-async-start
5171 \(lambda (f) (org-export-add-to-stack f 'backend))
5172 `(expand-file-name
5173 \(org-export-to-file
5174 'backend ,outfile ,subtreep ,visible-only ,body-only ',ext-plist)))"
5177 ;; Write the full sexp evaluating BODY in a copy of the current
5178 ;; buffer to a temporary file, as it may be too long for program
5179 ;; args in `start-process'.
5186 ;; Null characters (from variable values) are inserted
5187 ;; within the file. As a consequence, coding system for
5188 ;; buffer contents will not be recognized properly. So,
5189 ;; we make sure it is the same as the one used to display
5190 ;; the original buffer.
5192 ,coding
5195 ;; Ignore `kill-emacs-hook' and code evaluation
5196 ;; queries from Babel as we need a truly
5197 ;; non-interactive process.
5199 org-babel-confirm-evaluate-answer-no t)
5200 ;; Initialize export framework.
5202 ;; Re-create current buffer there.
5205 ;; Sexp to evaluate in the buffer.
5207 ;; Start external process.
5210 (,process
5215 "-l" org-export-async-init-file
5217 ;; Register running process in stack.
5219 ;; Set-up sentinel in order to catch results.
5221 ,process
5245 "Add a new result to export stack if not present already.
5247 SOURCE is a buffer or a file name containing export results.
5248 BACKEND is a symbol representing export back-end used to generate
5249 it.
5251 Entries already pointing to SOURCE and unavailable entries are
5252 removed beforehand. Return the new stack."
5258 "Menu for asynchronous export results and running processes."
5268 "Return source from export results at point in stack."
5275 source
5276 ;; SOURCE is not consistent with current line. The stack
5277 ;; view is outdated.
5281 "Remove all entries from export stack."
5286 "Refresh the asynchronous export stack.
5287 DUMMY is ignored. Unavailable sources are removed from the list.
5288 Return the new stack."
5298 ;; Back-end.
5300 ;; Age.
5303 ;; Compute age of the results.
5305 "%4h:%.2m "
5307 ;; Source.
5312 ;; Clear stack from exited processes, dead buffers or
5313 ;; non-existent files.
5325 "Remove export results at point from stack.
5326 If optional argument SOURCE is non-nil, remove it instead."
5331 org-export-stack-contents))))
5334 "View export results at point in stack.
5335 With an optional prefix argument IN-EMACS, force viewing files
5336 within Emacs."
5350 (define-key km "p" 'previous-line)
5351 (define-key km "\C-p" 'previous-line)
5352 (define-key km "\C-?" 'previous-line)
5353 (define-key km [up] 'previous-line)
5354 (define-key km "C" 'org-export-stack-clear)
5355 (define-key km "v" 'org-export-stack-view)
5356 (define-key km (kbd "RET") 'org-export-stack-view)
5357 (define-key km "d" 'org-export-stack-remove)
5358 km)
5359 "Keymap for Org Export Stack.")
5361 (define-derived-mode org-export-stack-mode special-mode "Org-Stack"
5362 "Mode for displaying asynchronous export stack.
5365 stack.
5367 In an Org Export Stack buffer, use \\<org-export-stack-mode-map>\\[org-export-stack-view] to view export output
5368 on current line, \\[org-export-stack-remove] to remove it from the stack and \\[org-export-stack-clear] to clear
5369 stack completely.
5371 Removing entries in an Org Export Stack buffer doesn't affect
5372 files or buffers, only the display.
5375 (abbrev-mode 0)
5376 (auto-fill-mode 0)
5377 (setq buffer-read-only t
5378 buffer-undo-list t
5379 truncate-lines t
5380 header-line-format
5381 '(:eval
5382 (format " %-12s | %6s | %s" "Back-End" "Age" "Source")))
5383 (add-hook 'post-command-hook 'org-export-stack-refresh nil t)
5384 (set (make-local-variable 'revert-buffer-function)
5385 'org-export-stack-refresh))
5388 \f
5389 ;;; The Dispatcher
5390 ;;
5391 ;; `org-export-dispatch' is the standard interactive way to start an
5392 ;; export process. It uses `org-export--dispatch-ui' as a subroutine
5393 ;; for its interface, which, in turn, delegates response to key
5394 ;; pressed to `org-export--dispatch-action'.
5396 ;;;###autoload
5397 (defun org-export-dispatch (&optional arg)
5398 "Export dispatcher for Org mode.
5400 It provides an access to common export related tasks in a buffer.
5401 Its interface comes in two flavours: standard and expert.
5403 While both share the same set of bindings, only the former
5404 displays the valid keys associations in a dedicated buffer.
5405 Scrolling (resp. line-wise motion) in this buffer is done with
5406 SPC and DEL (resp. C-n and C-p) keys.
5408 Set variable `org-export-dispatch-use-expert-ui' to switch to one
5409 flavour or the other.
5412 of options used back then, on the current buffer.
5414 When ARG is \\[universal-argument] \\[universal-argument], display the asynchronous export stack."
5415 (interactive "P")
5416 (let* ((input
5417 (cond ((equal arg '(16)) '(stack))
5418 ((and arg org-export-dispatch-last-action))
5419 (t (save-window-excursion
5420 (unwind-protect
5421 (progn
5422 ;; Remember where we are
5423 (move-marker org-export-dispatch-last-position
5424 (point)
5425 (org-base-buffer (current-buffer)))
5426 ;; Get and store an export command
5427 (setq org-export-dispatch-last-action
5428 (org-export--dispatch-ui
5429 (list org-export-initial-scope
5430 (and org-export-in-background 'async))
5431 nil
5432 org-export-dispatch-use-expert-ui)))
5433 (and (get-buffer "*Org Export Dispatcher*")
5434 (kill-buffer "*Org Export Dispatcher*")))))))
5435 (action (car input))
5436 (optns (cdr input)))
5437 (unless (memq 'subtree optns)
5438 (move-marker org-export-dispatch-last-position nil))
5439 (case action
5440 ;; First handle special hard-coded actions.
5441 (stack (org-export-stack))
5442 (publish-current-file
5443 (org-publish-current-file (memq 'force optns) (memq 'async optns)))
5444 (publish-current-project
5445 (org-publish-current-project (memq 'force optns) (memq 'async optns)))
5446 (publish-choose-project
5447 (org-publish (assoc (org-icompleting-read
5448 "Publish project: "
5449 org-publish-project-alist nil t)
5450 org-publish-project-alist)
5451 (memq 'force optns)
5452 (memq 'async optns)))
5453 (publish-all (org-publish-all (memq 'force optns) (memq 'async optns)))
5454 (otherwise
5455 (save-excursion
5456 (when arg
5457 ;; Repeating command, maybe move cursor
5458 ;; to restore subtree context
5459 (if (eq (marker-buffer org-export-dispatch-last-position)
5460 (org-base-buffer (current-buffer)))
5461 (goto-char org-export-dispatch-last-position)
5462 ;; We are in a differnet buffer, forget position
5463 (move-marker org-export-dispatch-last-position nil)))
5464 (funcall action
5465 ;; Return a symbol instead of a list to ease
5466 ;; asynchronous export macro use.
5467 (and (memq 'async optns) t)
5468 (and (memq 'subtree optns) t)
5469 (and (memq 'visible optns) t)
5470 (and (memq 'body optns) t)))))))
5472 (defun org-export--dispatch-ui (options first-key expertp)
5473 "Handle interface for `org-export-dispatch'.
5475 OPTIONS is a list containing current interactive options set for
5476 export. It can contain any of the following symbols:
5477 `body' toggles a body-only export
5478 `subtree' restricts export to current subtree
5479 `visible' restricts export to visible part of buffer.
5480 `force' force publishing files.
5481 `async' use asynchronous export process
5483 FIRST-KEY is the key pressed to select the first level menu. It
5484 is nil when this menu hasn't been selected yet.
5486 EXPERTP, when non-nil, triggers expert UI. In that case, no help
5487 buffer is provided, but indications about currently active
5488 options are given in the prompt. Moreover, \[?] allows to switch
5489 back to standard interface."
5490 (let* ((fontify-key
5491 (lambda (key &optional access-key)
5492 ;; Fontify KEY string. Optional argument ACCESS-KEY, when
5493 ;; non-nil is the required first-level key to activate
5494 ;; KEY. When its value is t, activate KEY independently
5495 ;; on the first key, if any. A nil value means KEY will
5496 ;; only be activated at first level.
5497 (if (or (eq access-key t) (eq access-key first-key))
5498 (org-propertize key 'face 'org-warning)
5499 key)))
5500 (fontify-value
5501 (lambda (value)
5502 ;; Fontify VALUE string.
5503 (org-propertize value 'face 'font-lock-variable-name-face)))
5504 ;; Prepare menu entries by extracting them from
5505 ;; `org-export-registered-backends', and sorting them by
5506 ;; access key and by ordinal, if any.
5507 (backends
5508 (sort
5509 (sort
5510 (delq nil
5511 (mapcar
5512 (lambda (b)
5513 (let ((name (car b)))
5514 (catch 'ignored
5515 ;; Ignore any back-end belonging to
5516 ;; `org-export-invisible-backends' or derived
5517 ;; from one of them.
5518 (dolist (ignored org-export-invisible-backends)
5519 (when (org-export-derived-backend-p name ignored)
5520 (throw 'ignored nil)))
5521 (org-export-backend-menu name))))
5522 org-export-registered-backends))
5523 (lambda (a b)
5524 (let ((key-a (nth 1 a))
5525 (key-b (nth 1 b)))
5526 (cond ((and (numberp key-a) (numberp key-b))
5527 (< key-a key-b))
5528 ((numberp key-b) t)))))
5529 (lambda (a b) (< (car a) (car b)))))
5530 ;; Compute a list of allowed keys based on the first key
5531 ;; pressed, if any. Some keys (?^B, ?^V, ?^S, ?^F, ?^A
5532 ;; and ?q) are always available.
5533 (allowed-keys
5534 (nconc (list 2 22 19 6 1)
5535 (if (not first-key) (org-uniquify (mapcar 'car backends))
5536 (let (sub-menu)
5537 (dolist (backend backends (sort (mapcar 'car sub-menu) '<))
5538 (when (eq (car backend) first-key)
5539 (setq sub-menu (append (nth 2 backend) sub-menu))))))
5540 (cond ((eq first-key ?P) (list ?f ?p ?x ?a))
5541 ((not first-key) (list ?P)))
5542 (list ?&)
5543 (when expertp (list ??))
5544 (list ?q)))
5545 ;; Build the help menu for standard UI.
5546 (help
5547 (unless expertp
5548 (concat
5549 ;; Options are hard-coded.
5550 (format "Options
5551 [%s] Body only: %s [%s] Visible only: %s
5552 [%s] Export scope: %s [%s] Force publishing: %s
5554 (funcall fontify-key "C-b" t)
5555 (funcall fontify-value
5556 (if (memq 'body options) "On " "Off"))
5557 (funcall fontify-key "C-v" t)
5558 (funcall fontify-value
5559 (if (memq 'visible options) "On " "Off"))
5560 (funcall fontify-key "C-s" t)
5561 (funcall fontify-value
5562 (if (memq 'subtree options) "Subtree" "Buffer "))
5563 (funcall fontify-key "C-f" t)
5564 (funcall fontify-value
5565 (if (memq 'force options) "On " "Off"))
5566 (funcall fontify-key "C-a" t)
5567 (funcall fontify-value
5568 (if (memq 'async options) "On " "Off")))
5569 ;; Display registered back-end entries. When a key
5570 ;; appears for the second time, do not create another
5571 ;; entry, but append its sub-menu to existing menu.
5572 (let (last-key)
5573 (mapconcat
5574 (lambda (entry)
5575 (let ((top-key (car entry)))
5576 (concat
5577 (unless (eq top-key last-key)
5578 (setq last-key top-key)
5580 (funcall fontify-key (char-to-string top-key))
5581 (nth 1 entry)))
5582 (let ((sub-menu (nth 2 entry)))
5583 (unless (functionp sub-menu)
5584 ;; Split sub-menu into two columns.
5585 (let ((index -1))
5586 (concat
5587 (mapconcat
5588 (lambda (sub-entry)
5589 (incf index)
5590 (format
5591 (if (zerop (mod index 2)) " [%s] %-26s"
5593 (funcall fontify-key
5594 (char-to-string (car sub-entry))
5595 top-key)
5596 (nth 1 sub-entry)))
5597 sub-menu "")
5599 backends ""))
5600 ;; Publishing menu is hard-coded.
5602 [%s] Current file [%s] Current project
5604 (funcall fontify-key "P")
5605 (funcall fontify-key "f" ?P)
5606 (funcall fontify-key "p" ?P)
5607 (funcall fontify-key "x" ?P)
5608 (funcall fontify-key "a" ?P))
5610 (format "\[%s] %s"
5611 (funcall fontify-key "q" t)
5612 (if first-key "Main menu" "Exit")))))
5613 ;; Build prompts for both standard and expert UI.
5614 (standard-prompt (unless expertp "Export command: "))
5615 (expert-prompt
5616 (when expertp
5617 (format
5618 "Export command (C-%s%s%s%s%s) [%s]: "
5619 (if (memq 'body options) (funcall fontify-key "b" t) "b")
5620 (if (memq 'visible options) (funcall fontify-key "v" t) "v")
5621 (if (memq 'subtree options) (funcall fontify-key "s" t) "s")
5622 (if (memq 'force options) (funcall fontify-key "f" t) "f")
5623 (if (memq 'async options) (funcall fontify-key "a" t) "a")
5624 (mapconcat (lambda (k)
5625 ;; Strip control characters.
5626 (unless (< k 27) (char-to-string k)))
5627 allowed-keys "")))))
5628 ;; With expert UI, just read key with a fancy prompt. In standard
5629 ;; UI, display an intrusive help buffer.
5630 (if expertp
5631 (org-export--dispatch-action
5632 expert-prompt allowed-keys backends options first-key expertp)
5633 ;; At first call, create frame layout in order to display menu.
5634 (unless (get-buffer "*Org Export Dispatcher*")
5635 (delete-other-windows)
5636 (org-switch-to-buffer-other-window
5637 (get-buffer-create "*Org Export Dispatcher*"))
5638 (setq cursor-type nil
5639 header-line-format "Use SPC, DEL, C-n or C-p to navigate.")
5640 ;; Make sure that invisible cursor will not highlight square
5641 ;; brackets.
5642 (set-syntax-table (copy-syntax-table))
5643 (modify-syntax-entry ?\[ "w"))
5644 ;; At this point, the buffer containing the menu exists and is
5645 ;; visible in the current window. So, refresh it.
5646 (with-current-buffer "*Org Export Dispatcher*"
5647 ;; Refresh help. Maintain display continuity by re-visiting
5648 ;; previous window position.
5649 (let ((pos (window-start)))
5650 (erase-buffer)
5651 (insert help)
5652 (set-window-start nil pos)))
5653 (org-fit-window-to-buffer)
5654 (org-export--dispatch-action
5655 standard-prompt allowed-keys backends options first-key expertp))))
5657 (defun org-export--dispatch-action
5658 (prompt allowed-keys backends options first-key expertp)
5659 "Read a character from command input and act accordingly.
5661 PROMPT is the displayed prompt, as a string. ALLOWED-KEYS is
5662 a list of characters available at a given step in the process.
5663 BACKENDS is a list of menu entries. OPTIONS, FIRST-KEY and
5664 EXPERTP are the same as defined in `org-export--dispatch-ui',
5665 which see.
5667 Toggle export options when required. Otherwise, return value is
5668 a list with action as CAR and a list of interactive export
5669 options as CDR."
5670 (let (key)
5671 ;; Scrolling: when in non-expert mode, act on motion keys (C-n,
5672 ;; C-p, SPC, DEL).
5673 (while (and (setq key (read-char-exclusive prompt))
5674 (not expertp)
5675 (memq key '(14 16 ?\s ?\d)))
5676 (case key
5677 (14 (if (not (pos-visible-in-window-p (point-max)))
5678 (ignore-errors (scroll-up-line))
5679 (message "End of buffer")
5680 (sit-for 1)))
5681 (16 (if (not (pos-visible-in-window-p (point-min)))
5682 (ignore-errors (scroll-down-line))
5683 (message "Beginning of buffer")
5684 (sit-for 1)))
5685 (?\s (if (not (pos-visible-in-window-p (point-max)))
5686 (scroll-up nil)
5687 (message "End of buffer")
5688 (sit-for 1)))
5689 (?\d (if (not (pos-visible-in-window-p (point-min)))
5690 (scroll-down nil)
5691 (message "Beginning of buffer")
5692 (sit-for 1)))))
5693 (cond
5694 ;; Ignore undefined associations.
5695 ((not (memq key allowed-keys))
5696 (ding)
5697 (unless expertp (message "Invalid key") (sit-for 1))
5698 (org-export--dispatch-ui options first-key expertp))
5699 ;; q key at first level aborts export. At second
5700 ;; level, cancel first key instead.
5701 ((eq key ?q) (if (not first-key) (error "Export aborted")
5702 (org-export--dispatch-ui options nil expertp)))
5703 ;; Help key: Switch back to standard interface if
5704 ;; expert UI was active.
5705 ((eq key ??) (org-export--dispatch-ui options first-key nil))
5706 ;; Switch to asynchronous export stack.
5707 ((eq key ?&) '(stack))
5708 ;; Toggle export options
5709 ;; C-b (2) C-v (22) C-s (19) C-f (6) C-a (1)
5710 ((memq key '(2 22 19 6 1))
5711 (org-export--dispatch-ui
5712 (let ((option (case key (2 'body) (22 'visible) (19 'subtree)
5713 (6 'force) (1 'async))))
5714 (if (memq option options) (remq option options)
5715 (cons option options)))
5716 first-key expertp))
5717 ;; Action selected: Send key and options back to
5718 ;; `org-export-dispatch'.
5719 ((or first-key (functionp (nth 2 (assq key backends))))
5720 (cons (cond
5721 ((not first-key) (nth 2 (assq key backends)))
5722 ;; Publishing actions are hard-coded. Send a special
5723 ;; signal to `org-export-dispatch'.
5724 ((eq first-key ?P)
5725 (case key
5726 (?f 'publish-current-file)
5727 (?p 'publish-current-project)
5728 (?x 'publish-choose-project)
5729 (?a 'publish-all)))
5730 ;; Return first action associated to FIRST-KEY + KEY
5731 ;; path. Indeed, derived backends can share the same
5732 ;; FIRST-KEY.
5733 (t (catch 'found
5734 (mapc (lambda (backend)
5735 (let ((match (assq key (nth 2 backend))))
5736 (when match (throw 'found (nth 2 match)))))
5737 (member (assq first-key backends) backends)))))
5738 options))
5739 ;; Otherwise, enter sub-menu.
5740 (t (org-export--dispatch-ui options key expertp)))))
5744 (provide 'ox)
5746 ;; Local variables:
5747 ;; generated-autoload-file: "org-loaddefs.el"
5748 ;; End:
5750 ;;; ox.el ends here