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2018-11-18 76bbd07de7add0f9d13c6914f158d19630fe2f62

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76bbd0	1	;;; ox-html.el --- HTML Back-End for Org Export Engine -- lexical-binding: t; --
C	2
	3	;; Copyright (C) 2011-2018 Free Software Foundation, Inc.
	4
	5	;; Author: Carsten Dominik <carsten at orgmode dot org>
	6	;; Jambunathan K <kjambunathan at gmail dot com>
	7	;; Keywords: outlines, hypermedia, calendar, wp
	8
	9	;; This file is part of GNU Emacs.
	10
	11	;; GNU Emacs is free software: you can redistribute it and/or modify
	12	;; it under the terms of the GNU General Public License as published by
	13	;; the Free Software Foundation, either version 3 of the License, or
	14	;; (at your option) any later version.
	15
	16	;; GNU Emacs is distributed in the hope that it will be useful,
	17	;; but WITHOUT ANY WARRANTY; without even the implied warranty of
	18	;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	19	;; GNU General Public License for more details.
	20
	21	;; You should have received a copy of the GNU General Public License
	22	;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
	23
	24	;;; Commentary:
	25
	26	;; This library implements a HTML back-end for Org generic exporter.
	27	;; See Org manual for more information.
	28
	29	;;; Code:
	30
	31	;;; Dependencies
	32
	33	(require 'cl-lib)
	34	(require 'format-spec)
	35	(require 'ox)
	36	(require 'ox-publish)
	37	(require 'table)
	38
	39
	40	;;; Function Declarations
	41
	42	(declare-function org-id-find-id-file "org-id" (id))
	43	(declare-function htmlize-region "ext:htmlize" (beg end))
	44	(declare-function mm-url-decode-entities "mm-url" ())
	45
	46	(defvar htmlize-css-name-prefix)
	47	(defvar htmlize-output-type)
	48	(defvar htmlize-output-type)
	49	(defvar htmlize-css-name-prefix)
	50
	51	;;; Define Back-End
	52
	53	(org-export-define-backend 'html
	54	'((bold . org-html-bold)
	55	(center-block . org-html-center-block)
	56	(clock . org-html-clock)
	57	(code . org-html-code)
	58	(drawer . org-html-drawer)
	59	(dynamic-block . org-html-dynamic-block)
	60	(entity . org-html-entity)
	61	(example-block . org-html-example-block)
	62	(export-block . org-html-export-block)
	63	(export-snippet . org-html-export-snippet)
	64	(fixed-width . org-html-fixed-width)
	65	(footnote-definition . org-html-footnote-definition)
	66	(footnote-reference . org-html-footnote-reference)
	67	(headline . org-html-headline)
	68	(horizontal-rule . org-html-horizontal-rule)
	69	(inline-src-block . org-html-inline-src-block)
	70	(inlinetask . org-html-inlinetask)
	71	(inner-template . org-html-inner-template)
	72	(italic . org-html-italic)
	73	(item . org-html-item)
	74	(keyword . org-html-keyword)
	75	(latex-environment . org-html-latex-environment)
	76	(latex-fragment . org-html-latex-fragment)
	77	(line-break . org-html-line-break)
	78	(link . org-html-link)
	79	(node-property . org-html-node-property)
	80	(paragraph . org-html-paragraph)
	81	(plain-list . org-html-plain-list)
	82	(plain-text . org-html-plain-text)
	83	(planning . org-html-planning)
	84	(property-drawer . org-html-property-drawer)
	85	(quote-block . org-html-quote-block)
	86	(radio-target . org-html-radio-target)
	87	(section . org-html-section)
	88	(special-block . org-html-special-block)
	89	(src-block . org-html-src-block)
	90	(statistics-cookie . org-html-statistics-cookie)
	91	(strike-through . org-html-strike-through)
	92	(subscript . org-html-subscript)
	93	(superscript . org-html-superscript)
	94	(table . org-html-table)
	95	(table-cell . org-html-table-cell)
	96	(table-row . org-html-table-row)
	97	(target . org-html-target)
	98	(template . org-html-template)
	99	(timestamp . org-html-timestamp)
	100	(underline . org-html-underline)
	101	(verbatim . org-html-verbatim)
	102	(verse-block . org-html-verse-block))
	103	:filters-alist '((:filter-options . org-html-infojs-install-script)
	104	(:filter-parse-tree . org-html-image-link-filter)
	105	(:filter-final-output . org-html-final-function))
	106	:menu-entry
	107	'(?h "Export to HTML"
	108	((?H "As HTML buffer" org-html-export-as-html)
	109	(?h "As HTML file" org-html-export-to-html)
	110	(?o "As HTML file and open"
	111	(lambda (a s v b)
	112	(if a (org-html-export-to-html t s v b)
	113	(org-open-file (org-html-export-to-html nil s v b)))))))
	114	:options-alist
	115	'((:html-doctype "HTML_DOCTYPE" nil org-html-doctype)
	116	(:html-container "HTML_CONTAINER" nil org-html-container-element)
	117	(:description "DESCRIPTION" nil nil newline)
	118	(:keywords "KEYWORDS" nil nil space)
	119	(:html-html5-fancy nil "html5-fancy" org-html-html5-fancy)
	120	(:html-link-use-abs-url nil "html-link-use-abs-url" org-html-link-use-abs-url)
	121	(:html-link-home "HTML_LINK_HOME" nil org-html-link-home)
	122	(:html-link-up "HTML_LINK_UP" nil org-html-link-up)
	123	(:html-mathjax "HTML_MATHJAX" nil "" space)
	124	(:html-postamble nil "html-postamble" org-html-postamble)
	125	(:html-preamble nil "html-preamble" org-html-preamble)
	126	(:html-head "HTML_HEAD" nil org-html-head newline)
	127	(:html-head-extra "HTML_HEAD_EXTRA" nil org-html-head-extra newline)
	128	(:subtitle "SUBTITLE" nil nil parse)
	129	(:html-head-include-default-style
	130	nil "html-style" org-html-head-include-default-style)
	131	(:html-head-include-scripts nil "html-scripts" org-html-head-include-scripts)
	132	(:html-allow-name-attribute-in-anchors
	133	nil nil org-html-allow-name-attribute-in-anchors)
	134	(:html-divs nil nil org-html-divs)
	135	(:html-checkbox-type nil nil org-html-checkbox-type)
	136	(:html-extension nil nil org-html-extension)
	137	(:html-footnote-format nil nil org-html-footnote-format)
	138	(:html-footnote-separator nil nil org-html-footnote-separator)
	139	(:html-footnotes-section nil nil org-html-footnotes-section)
	140	(:html-format-drawer-function nil nil org-html-format-drawer-function)
	141	(:html-format-headline-function nil nil org-html-format-headline-function)
	142	(:html-format-inlinetask-function
	143	nil nil org-html-format-inlinetask-function)
	144	(:html-home/up-format nil nil org-html-home/up-format)
	145	(:html-indent nil nil org-html-indent)
	146	(:html-infojs-options nil nil org-html-infojs-options)
	147	(:html-infojs-template nil nil org-html-infojs-template)
	148	(:html-inline-image-rules nil nil org-html-inline-image-rules)
	149	(:html-link-org-files-as-html nil nil org-html-link-org-files-as-html)
	150	(:html-mathjax-options nil nil org-html-mathjax-options)
	151	(:html-mathjax-template nil nil org-html-mathjax-template)
	152	(:html-metadata-timestamp-format nil nil org-html-metadata-timestamp-format)
	153	(:html-postamble-format nil nil org-html-postamble-format)
	154	(:html-preamble-format nil nil org-html-preamble-format)
	155	(:html-table-align-individual-fields
	156	nil nil org-html-table-align-individual-fields)
	157	(:html-table-caption-above nil nil org-html-table-caption-above)
	158	(:html-table-data-tags nil nil org-html-table-data-tags)
	159	(:html-table-header-tags nil nil org-html-table-header-tags)
	160	(:html-table-use-header-tags-for-first-column
	161	nil nil org-html-table-use-header-tags-for-first-column)
	162	(:html-tag-class-prefix nil nil org-html-tag-class-prefix)
	163	(:html-text-markup-alist nil nil org-html-text-markup-alist)
	164	(:html-todo-kwd-class-prefix nil nil org-html-todo-kwd-class-prefix)
	165	(:html-toplevel-hlevel nil nil org-html-toplevel-hlevel)
	166	(:html-use-infojs nil nil org-html-use-infojs)
	167	(:html-validation-link nil nil org-html-validation-link)
	168	(:html-viewport nil nil org-html-viewport)
	169	(:html-inline-images nil nil org-html-inline-images)
	170	(:html-table-attributes nil nil org-html-table-default-attributes)
	171	(:html-table-row-open-tag nil nil org-html-table-row-open-tag)
	172	(:html-table-row-close-tag nil nil org-html-table-row-close-tag)
	173	(:html-xml-declaration nil nil org-html-xml-declaration)
	174	(:html-klipsify-src nil nil org-html-klipsify-src)
	175	(:html-klipse-css nil nil org-html-klipse-css)
	176	(:html-klipse-js nil nil org-html-klipse-js)
	177	(:html-klipse-selection-script nil nil org-html-klipse-selection-script)
	178	(:infojs-opt "INFOJS_OPT" nil nil)
	179	;; Redefine regular options.
	180	(:creator "CREATOR" nil org-html-creator-string)
	181	(:with-latex nil "tex" org-html-with-latex)
	182	;; Retrieve LaTeX header for fragments.
	183	(:latex-header "LATEX_HEADER" nil nil newline)))
	184
	185
	186	;;; Internal Variables
	187
	188	(defvar org-html-format-table-no-css)
	189	(defvar htmlize-buffer-places) ; from htmlize.el
	190
	191	(defvar org-html--pre/postamble-class "status"
	192	"CSS class used for pre/postamble")
	193
	194	(defconst org-html-doctype-alist
	195	'(("html4-strict" . "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01//EN\"
	196	\"http://www.w3.org/TR/html4/strict.dtd\">")
	197	("html4-transitional" . "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\"
	198	\"http://www.w3.org/TR/html4/loose.dtd\">")
	199	("html4-frameset" . "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01 Frameset//EN\"
	200	\"http://www.w3.org/TR/html4/frameset.dtd\">")
	201
	202	("xhtml-strict" . "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\"
	203	\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">")
	204	("xhtml-transitional" . "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"
	205	\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">")
	206	("xhtml-frameset" . "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Frameset//EN\"
	207	\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd\">")
	208	("xhtml-11" . "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.1//EN\"
	209	\"http://www.w3.org/TR/xhtml1/DTD/xhtml11.dtd\">")
	210
	211	("html5" . "<!DOCTYPE html>")
	212	("xhtml5" . "<!DOCTYPE html>"))
	213	"An alist mapping (x)html flavors to specific doctypes.")
	214
	215	(defconst org-html-html5-elements
	216	'("article" "aside" "audio" "canvas" "details" "figcaption"
	217	"figure" "footer" "header" "menu" "meter" "nav" "output"
	218	"progress" "section" "video")
	219	"New elements in html5.
	220
	221	For blocks that should contain headlines, use the HTML_CONTAINER
	222	property on the headline itself.")
	223
	224	(defconst org-html-special-string-regexps
	225	'(("\\\\-" . "") ; shy
	226	("---\\([^-]\\)" . "—\\1") ; mdash
	227	("--\\([^-]\\)" . "–\\1") ; ndash
	228	("\\.\\.\\." . "…")) ; hellip
	229	"Regular expressions for special string conversion.")
	230
	231	(defconst org-html-scripts
	232	"<script type=\"text/javascript\">
	233	/*
	234	@licstart The following is the entire license notice for the
	235	JavaScript code in this tag.
	236
	237	Copyright (C) 2012-2018 Free Software Foundation, Inc.
	238
	239	The JavaScript code in this tag is free software: you can
	240	redistribute it and/or modify it under the terms of the GNU
	241	General Public License (GNU GPL) as published by the Free Software
	242	Foundation, either version 3 of the License, or (at your option)
	243	any later version. The code is distributed WITHOUT ANY WARRANTY;
	244	without even the implied warranty of MERCHANTABILITY or FITNESS
	245	FOR A PARTICULAR PURPOSE. See the GNU GPL for more details.
	246
	247	As additional permission under GNU GPL version 3 section 7, you
	248	may distribute non-source (e.g., minimized or compacted) forms of
	249	that code without the copy of the GNU GPL normally required by
	250	section 4, provided you include this license notice and a URL
	251	through which recipients can access the Corresponding Source.
	252
	253
	254	@licend The above is the entire license notice
	255	for the JavaScript code in this tag.
	256	*/
	257	<!--/--><![CDATA[/><!--*/
	258	function CodeHighlightOn(elem, id)
	259	{
	260	var target = document.getElementById(id);
	261	if(null != target) {
	262	elem.cacheClassElem = elem.className;
	263	elem.cacheClassTarget = target.className;
	264	target.className = \"code-highlighted\";
	265	elem.className = \"code-highlighted\";
	266	}
	267	}
	268	function CodeHighlightOff(elem, id)
	269	{
	270	var target = document.getElementById(id);
	271	if(elem.cacheClassElem)
	272	elem.className = elem.cacheClassElem;
	273	if(elem.cacheClassTarget)
	274	target.className = elem.cacheClassTarget;
	275	}
	276	/]]>///-->
	277	</script>"
	278	"Basic JavaScript that is needed by HTML files produced by Org mode.")
	279
	280	(defconst org-html-style-default
	281	"<style type=\"text/css\">
	282	<!--/--><![CDATA[/><!--*/
	283	.title { text-align: center;
	284	margin-bottom: .2em; }
	285	.subtitle { text-align: center;
	286	font-size: medium;
	287	font-weight: bold;
	288	margin-top:0; }
	289	.todo { font-family: monospace; color: red; }
	290	.done { font-family: monospace; color: green; }
	291	.priority { font-family: monospace; color: orange; }
	292	.tag { background-color: #eee; font-family: monospace;
	293	padding: 2px; font-size: 80%; font-weight: normal; }
	294	.timestamp { color: #bebebe; }
	295	.timestamp-kwd { color: #5f9ea0; }
	296	.org-right { margin-left: auto; margin-right: 0px; text-align: right; }
	297	.org-left { margin-left: 0px; margin-right: auto; text-align: left; }
	298	.org-center { margin-left: auto; margin-right: auto; text-align: center; }
	299	.underline { text-decoration: underline; }
	300	#postamble p, #preamble p { font-size: 90%; margin: .2em; }
	301	p.verse { margin-left: 3%; }
	302	pre {
	303	border: 1px solid #ccc;
	304	box-shadow: 3px 3px 3px #eee;
	305	padding: 8pt;
	306	font-family: monospace;
	307	overflow: auto;
	308	margin: 1.2em;
	309	}
	310	pre.src {
	311	position: relative;
	312	overflow: visible;
	313	padding-top: 1.2em;
	314	}
	315	pre.src:before {
	316	display: none;
	317	position: absolute;
	318	background-color: white;
	319	top: -10px;
	320	right: 10px;
	321	padding: 3px;
	322	border: 1px solid black;
	323	}
	324	pre.src:hover:before { display: inline;}
	325	/* Languages per Org manual */
	326	pre.src-asymptote:before { content: 'Asymptote'; }
	327	pre.src-awk:before { content: 'Awk'; }
	328	pre.src-C:before { content: 'C'; }
	329	/* pre.src-C++ doesn't work in CSS */
	330	pre.src-clojure:before { content: 'Clojure'; }
	331	pre.src-css:before { content: 'CSS'; }
	332	pre.src-D:before { content: 'D'; }
	333	pre.src-ditaa:before { content: 'ditaa'; }
	334	pre.src-dot:before { content: 'Graphviz'; }
	335	pre.src-calc:before { content: 'Emacs Calc'; }
	336	pre.src-emacs-lisp:before { content: 'Emacs Lisp'; }
	337	pre.src-fortran:before { content: 'Fortran'; }
	338	pre.src-gnuplot:before { content: 'gnuplot'; }
	339	pre.src-haskell:before { content: 'Haskell'; }
	340	pre.src-hledger:before { content: 'hledger'; }
	341	pre.src-java:before { content: 'Java'; }
	342	pre.src-js:before { content: 'Javascript'; }
	343	pre.src-latex:before { content: 'LaTeX'; }
	344	pre.src-ledger:before { content: 'Ledger'; }
	345	pre.src-lisp:before { content: 'Lisp'; }
	346	pre.src-lilypond:before { content: 'Lilypond'; }
	347	pre.src-lua:before { content: 'Lua'; }
	348	pre.src-matlab:before { content: 'MATLAB'; }
	349	pre.src-mscgen:before { content: 'Mscgen'; }
	350	pre.src-ocaml:before { content: 'Objective Caml'; }
	351	pre.src-octave:before { content: 'Octave'; }
	352	pre.src-org:before { content: 'Org mode'; }
	353	pre.src-oz:before { content: 'OZ'; }
	354	pre.src-plantuml:before { content: 'Plantuml'; }
	355	pre.src-processing:before { content: 'Processing.js'; }
	356	pre.src-python:before { content: 'Python'; }
	357	pre.src-R:before { content: 'R'; }
	358	pre.src-ruby:before { content: 'Ruby'; }
	359	pre.src-sass:before { content: 'Sass'; }
	360	pre.src-scheme:before { content: 'Scheme'; }
	361	pre.src-screen:before { content: 'Gnu Screen'; }
	362	pre.src-sed:before { content: 'Sed'; }
	363	pre.src-sh:before { content: 'shell'; }
	364	pre.src-sql:before { content: 'SQL'; }
	365	pre.src-sqlite:before { content: 'SQLite'; }
	366	/* additional languages in org.el's org-babel-load-languages alist */
	367	pre.src-forth:before { content: 'Forth'; }
	368	pre.src-io:before { content: 'IO'; }
	369	pre.src-J:before { content: 'J'; }
	370	pre.src-makefile:before { content: 'Makefile'; }
	371	pre.src-maxima:before { content: 'Maxima'; }
	372	pre.src-perl:before { content: 'Perl'; }
	373	pre.src-picolisp:before { content: 'Pico Lisp'; }
	374	pre.src-scala:before { content: 'Scala'; }
	375	pre.src-shell:before { content: 'Shell Script'; }
	376	pre.src-ebnf2ps:before { content: 'ebfn2ps'; }
	377	/* additional language identifiers per \"defun org-babel-execute\"
	378	in ob-.el /
	379	pre.src-cpp:before { content: 'C++'; }
	380	pre.src-abc:before { content: 'ABC'; }
	381	pre.src-coq:before { content: 'Coq'; }
	382	pre.src-groovy:before { content: 'Groovy'; }
	383	/* additional language identifiers from org-babel-shell-names in
	384	ob-shell.el: ob-shell is the only babel language using a lambda to put
	385	the execution function name together. */
	386	pre.src-bash:before { content: 'bash'; }
	387	pre.src-csh:before { content: 'csh'; }
	388	pre.src-ash:before { content: 'ash'; }
	389	pre.src-dash:before { content: 'dash'; }
	390	pre.src-ksh:before { content: 'ksh'; }
	391	pre.src-mksh:before { content: 'mksh'; }
	392	pre.src-posh:before { content: 'posh'; }
	393	/* Additional Emacs modes also supported by the LaTeX listings package */
	394	pre.src-ada:before { content: 'Ada'; }
	395	pre.src-asm:before { content: 'Assembler'; }
	396	pre.src-caml:before { content: 'Caml'; }
	397	pre.src-delphi:before { content: 'Delphi'; }
	398	pre.src-html:before { content: 'HTML'; }
	399	pre.src-idl:before { content: 'IDL'; }
	400	pre.src-mercury:before { content: 'Mercury'; }
	401	pre.src-metapost:before { content: 'MetaPost'; }
	402	pre.src-modula-2:before { content: 'Modula-2'; }
	403	pre.src-pascal:before { content: 'Pascal'; }
	404	pre.src-ps:before { content: 'PostScript'; }
	405	pre.src-prolog:before { content: 'Prolog'; }
	406	pre.src-simula:before { content: 'Simula'; }
	407	pre.src-tcl:before { content: 'tcl'; }
	408	pre.src-tex:before { content: 'TeX'; }
	409	pre.src-plain-tex:before { content: 'Plain TeX'; }
	410	pre.src-verilog:before { content: 'Verilog'; }
	411	pre.src-vhdl:before { content: 'VHDL'; }
	412	pre.src-xml:before { content: 'XML'; }
	413	pre.src-nxml:before { content: 'XML'; }
	414	/* add a generic configuration mode; LaTeX export needs an additional
	415	(add-to-list 'org-latex-listings-langs '(conf \" \")) in .emacs */
	416	pre.src-conf:before { content: 'Configuration File'; }
	417
	418	table { border-collapse:collapse; }
	419	caption.t-above { caption-side: top; }
	420	caption.t-bottom { caption-side: bottom; }
	421	td, th { vertical-align:top; }
	422	th.org-right { text-align: center; }
	423	th.org-left { text-align: center; }
	424	th.org-center { text-align: center; }
	425	td.org-right { text-align: right; }
	426	td.org-left { text-align: left; }
	427	td.org-center { text-align: center; }
	428	dt { font-weight: bold; }
	429	.footpara { display: inline; }
	430	.footdef { margin-bottom: 1em; }
	431	.figure { padding: 1em; }
	432	.figure p { text-align: center; }
	433	.inlinetask {
	434	padding: 10px;
	435	border: 2px solid gray;
	436	margin: 10px;
	437	background: #ffffcc;
	438	}
	439	#org-div-home-and-up
	440	{ text-align: right; font-size: 70%; white-space: nowrap; }
	441	textarea { overflow-x: auto; }
	442	.linenr { font-size: smaller }
	443	.code-highlighted { background-color: #ffff00; }
	444	.org-info-js_info-navigation { border-style: none; }
	445	#org-info-js_console-label
	446	{ font-size: 10px; font-weight: bold; white-space: nowrap; }
	447	.org-info-js_search-highlight
	448	{ background-color: #ffff00; color: #000000; font-weight: bold; }
	449	.org-svg { width: 90%; }
	450	/]]>/-->
	451	</style>"
	452	"The default style specification for exported HTML files.
	453	You can use `org-html-head' and `org-html-head-extra' to add to
	454	this style. If you don't want to include this default style,
	455	customize `org-html-head-include-default-style'.")
	456
	457
	458	;;; User Configuration Variables
	459
	460	(defgroup org-export-html nil
	461	"Options for exporting Org mode files to HTML."
	462	:tag "Org Export HTML"
	463	:group 'org-export)
	464
	465	;;;; Handle infojs
	466
	467	(defvar org-html-infojs-opts-table
	468	'((path PATH "https://orgmode.org/org-info.js")
	469	(view VIEW "info")
	470	(toc TOC :with-toc)
	471	(ftoc FIXED_TOC "0")
	472	(tdepth TOC_DEPTH "max")
	473	(sdepth SECTION_DEPTH "max")
	474	(mouse MOUSE_HINT "underline")
	475	(buttons VIEW_BUTTONS "0")
	476	(ltoc LOCAL_TOC "1")
	477	(up LINK_UP :html-link-up)
	478	(home LINK_HOME :html-link-home))
	479	"JavaScript options, long form for script, default values.")
	480
	481	(defcustom org-html-use-infojs 'when-configured
	482	"Non-nil when Sebastian Rose's Java Script org-info.js should be active.
	483	This option can be nil or t to never or always use the script.
	484	It can also be the symbol `when-configured', meaning that the
	485	script will be linked into the export file if and only if there
	486	is a \"#+INFOJS_OPT:\" line in the buffer. See also the variable
	487	`org-html-infojs-options'."
	488	:group 'org-export-html
	489	:version "24.4"
	490	:package-version '(Org . "8.0")
	491	:type '(choice
	492	(const :tag "Never" nil)
	493	(const :tag "When configured in buffer" when-configured)
	494	(const :tag "Always" t)))
	495
	496	(defcustom org-html-infojs-options
	497	(mapcar (lambda (x) (cons (car x) (nth 2 x))) org-html-infojs-opts-table)
	498	"Options settings for the INFOJS JavaScript.
	499	Each of the options must have an entry in `org-html-infojs-opts-table'.
	500	The value can either be a string that will be passed to the script, or
	501	a property. This property is then assumed to be a property that is defined
	502	by the Export/Publishing setup of Org.
	503	The `sdepth' and `tdepth' parameters can also be set to \"max\", which
	504	means to use the maximum value consistent with other options."
	505	:group 'org-export-html
	506	:version "24.4"
	507	:package-version '(Org . "8.0")
	508	:type
	509	`(set :greedy t :inline t
	510	,@(mapcar
	511	(lambda (x)
	512	(list 'cons (list 'const (car x))
	513	'(choice
	514	(symbol :tag "Publishing/Export property")
	515	(string :tag "Value"))))
	516	org-html-infojs-opts-table)))
	517
	518	(defcustom org-html-infojs-template
	519	"<script type=\"text/javascript\" src=\"%SCRIPT_PATH\">
	520	/**
	521	*
	522	* @source: %SCRIPT_PATH
	523	*
	524	* @licstart The following is the entire license notice for the
	525	* JavaScript code in %SCRIPT_PATH.
	526	*
	527	* Copyright (C) 2012-2018 Free Software Foundation, Inc.
	528	*
	529	*
	530	* The JavaScript code in this tag is free software: you can
	531	* redistribute it and/or modify it under the terms of the GNU
	532	* General Public License (GNU GPL) as published by the Free Software
	533	* Foundation, either version 3 of the License, or (at your option)
	534	* any later version. The code is distributed WITHOUT ANY WARRANTY;
	535	* without even the implied warranty of MERCHANTABILITY or FITNESS
	536	* FOR A PARTICULAR PURPOSE. See the GNU GPL for more details.
	537	*
	538	* As additional permission under GNU GPL version 3 section 7, you
	539	* may distribute non-source (e.g., minimized or compacted) forms of
	540	* that code without the copy of the GNU GPL normally required by
	541	* section 4, provided you include this license notice and a URL
	542	* through which recipients can access the Corresponding Source.
	543	*
	544	* @licend The above is the entire license notice
	545	* for the JavaScript code in %SCRIPT_PATH.
	546	*
	547	*/
	548	</script>
	549
	550	<script type=\"text/javascript\">
	551
	552	/*
	553	@licstart The following is the entire license notice for the
	554	JavaScript code in this tag.
	555
	556	Copyright (C) 2012-2018 Free Software Foundation, Inc.
	557
	558	The JavaScript code in this tag is free software: you can
	559	redistribute it and/or modify it under the terms of the GNU
	560	General Public License (GNU GPL) as published by the Free Software
	561	Foundation, either version 3 of the License, or (at your option)
	562	any later version. The code is distributed WITHOUT ANY WARRANTY;
	563	without even the implied warranty of MERCHANTABILITY or FITNESS
	564	FOR A PARTICULAR PURPOSE. See the GNU GPL for more details.
	565
	566	As additional permission under GNU GPL version 3 section 7, you
	567	may distribute non-source (e.g., minimized or compacted) forms of
	568	that code without the copy of the GNU GPL normally required by
	569	section 4, provided you include this license notice and a URL
	570	through which recipients can access the Corresponding Source.
	571
	572
	573	@licend The above is the entire license notice
	574	for the JavaScript code in this tag.
	575	*/
	576
	577	<!--/--><![CDATA[/><!--*/
	578	%MANAGER_OPTIONS
	579	org_html_manager.setup(); // activate after the parameters are set
	580	/]]>///-->
	581	</script>"
	582	"The template for the export style additions when org-info.js is used.
	583	Option settings will replace the %MANAGER-OPTIONS cookie."
	584	:group 'org-export-html
	585	:version "24.4"
	586	:package-version '(Org . "8.0")
	587	:type 'string)
	588
	589	(defun org-html-infojs-install-script (exp-plist _backend)
	590	"Install script in export options when appropriate.
	591	EXP-PLIST is a plist containing export options. BACKEND is the
	592	export back-end currently used."
	593	(unless (or (memq 'body-only (plist-get exp-plist :export-options))
	594	(not (plist-get exp-plist :html-use-infojs))
	595	(and (eq (plist-get exp-plist :html-use-infojs) 'when-configured)
	596	(let ((opt (plist-get exp-plist :infojs-opt)))
	597	(or (not opt)
	598	(string= "" opt)
	599	(string-match "\\<view:nil\\>" opt)))))
	600	(let* ((template (plist-get exp-plist :html-infojs-template))
	601	(ptoc (plist-get exp-plist :with-toc))
	602	(hlevels (plist-get exp-plist :headline-levels))
	603	(sdepth hlevels)
	604	(tdepth (if (integerp ptoc) (min ptoc hlevels) hlevels))
	605	(options (plist-get exp-plist :infojs-opt))
	606	(infojs-opt (plist-get exp-plist :html-infojs-options))
	607	(table org-html-infojs-opts-table)
	608	style)
	609	(dolist (entry table)
	610	(let* ((opt (car entry))
	611	(var (nth 1 entry))
	612	;; Compute default values for script option OPT from
	613	;; `org-html-infojs-options' variable.
	614	(default
	615	(let ((default (cdr (assq opt infojs-opt))))
	616	(if (and (symbolp default) (not (memq default '(t nil))))
	617	(plist-get exp-plist default)
	618	default)))
	619	;; Value set through INFOJS_OPT keyword has precedence
	620	;; over the default one.
	621	(val (if (and options
	622	(string-match (format "\\<%s:\\(\\S-+\\)" opt)
	623	options))
	624	(match-string 1 options)
	625	default)))
	626	(pcase opt
	627	(`path (setq template
	628	(replace-regexp-in-string
	629	"%SCRIPT_PATH" val template t t)))
	630	(`sdepth (when (integerp (read val))
	631	(setq sdepth (min (read val) sdepth))))
	632	(`tdepth (when (integerp (read val))
	633	(setq tdepth (min (read val) tdepth))))
	634	(_ (setq val
	635	(cond
	636	((or (eq val t) (equal val "t")) "1")
	637	((or (eq val nil) (equal val "nil")) "0")
	638	((stringp val) val)
	639	(t (format "%s" val))))
	640	(push (cons var val) style)))))
	641	;; Now we set the depth of the generated TOC to SDEPTH,
	642	;; because the toc will actually determine the splitting. How
	643	;; much of the toc will actually be displayed is governed by the
	644	;; TDEPTH option.
	645	(setq exp-plist (plist-put exp-plist :with-toc sdepth))
	646	;; The table of contents should not show more sections than we
	647	;; generate.
	648	(setq tdepth (min tdepth sdepth))
	649	(push (cons "TOC_DEPTH" tdepth) style)
	650	;; Build style string.
	651	(setq style (mapconcat
	652	(lambda (x)
	653	(format "org_html_manager.set(\"%s\", \"%s\");"
	654	(car x) (cdr x)))
	655	style "\n"))
	656	(when (and style (> (length style) 0))
	657	(and (string-match "%MANAGER_OPTIONS" template)
	658	(setq style (replace-match style t t template))
	659	(setq exp-plist
	660	(plist-put
	661	exp-plist :html-head-extra
	662	(concat (or (plist-get exp-plist :html-head-extra) "")
	663	"\n"
	664	style)))))
	665	;; This script absolutely needs the table of contents, so we
	666	;; change that setting.
	667	(unless (plist-get exp-plist :with-toc)
	668	(setq exp-plist (plist-put exp-plist :with-toc t)))
	669	;; Return the modified property list.
	670	exp-plist)))
	671
	672	;;;; Bold, etc.
	673
	674	(defcustom org-html-text-markup-alist
	675	'((bold . "<b>%s</b>")
	676	(code . "<code>%s</code>")
	677	(italic . "<i>%s</i>")
	678	(strike-through . "<del>%s</del>")
	679	(underline . "<span class=\"underline\">%s</span>")
	680	(verbatim . "<code>%s</code>"))
	681	"Alist of HTML expressions to convert text markup.
	682
	683	The key must be a symbol among `bold', `code', `italic',
	684	`strike-through', `underline' and `verbatim'. The value is
	685	a formatting string to wrap fontified text with.
	686
	687	If no association can be found for a given markup, text will be
	688	returned as-is."
	689	:group 'org-export-html
	690	:version "24.4"
	691	:package-version '(Org . "8.0")
	692	:type '(alist :key-type (symbol :tag "Markup type")
	693	:value-type (string :tag "Format string"))
	694	:options '(bold code italic strike-through underline verbatim))
	695
	696	(defcustom org-html-indent nil
	697	"Non-nil means to indent the generated HTML.
	698	Warning: non-nil may break indentation of source code blocks."
	699	:group 'org-export-html
	700	:version "24.4"
	701	:package-version '(Org . "8.0")
	702	:type 'boolean)
	703
	704	;;;; Drawers
	705
	706	(defcustom org-html-format-drawer-function (lambda (_name contents) contents)
	707	"Function called to format a drawer in HTML code.
	708
	709	The function must accept two parameters:
	710	NAME the drawer name, like \"LOGBOOK\"
	711	CONTENTS the contents of the drawer.
	712
	713	The function should return the string to be exported.
	714
	715	For example, the variable could be set to the following function
	716	in order to mimic default behavior:
	717
	718	The default value simply returns the value of CONTENTS."
	719	:group 'org-export-html
	720	:version "24.4"
	721	:package-version '(Org . "8.0")
	722	:type 'function)
	723
	724	;;;; Footnotes
	725
	726	(defcustom org-html-footnotes-section "<div id=\"footnotes\">
	727	<h2 class=\"footnotes\">%s: </h2>
	728	<div id=\"text-footnotes\">
	729	%s
	730	</div>
	731	</div>"
	732	"Format for the footnotes section.
	733	Should contain a two instances of %s. The first will be replaced with the
	734	language-specific word for \"Footnotes\", the second one will be replaced
	735	by the footnotes themselves."
	736	:group 'org-export-html
	737	:type 'string)
	738
	739	(defcustom org-html-footnote-format "<sup>%s</sup>"
	740	"The format for the footnote reference.
	741	%s will be replaced by the footnote reference itself."
	742	:group 'org-export-html
	743	:type 'string)
	744
	745	(defcustom org-html-footnote-separator "<sup>, </sup>"
	746	"Text used to separate footnotes."
	747	:group 'org-export-html
	748	:type 'string)
	749
	750	;;;; Headline
	751
	752	(defcustom org-html-toplevel-hlevel 2
	753	"The <H> level for level 1 headings in HTML export.
	754	This is also important for the classes that will be wrapped around headlines
	755	and outline structure. If this variable is 1, the top-level headlines will
	756	be <h1>, and the corresponding classes will be outline-1, section-number-1,
	757	and outline-text-1. If this is 2, all of these will get a 2 instead.
	758	The default for this variable is 2, because we use <h1> for formatting the
	759	document title."
	760	:group 'org-export-html
	761	:type 'integer)
	762
	763	(defcustom org-html-format-headline-function
	764	'org-html-format-headline-default-function
	765	"Function to format headline text.
	766
	767	This function will be called with six arguments:
	768	TODO the todo keyword (string or nil).
	769	TODO-TYPE the type of todo (symbol: `todo', `done', nil)
	770	PRIORITY the priority of the headline (integer or nil)
	771	TEXT the main headline text (string).
	772	TAGS the tags (string or nil).
	773	INFO the export options (plist).
	774
	775	The function result will be used in the section format string."
	776	:group 'org-export-html
	777	:version "26.1"
	778	:package-version '(Org . "8.3")
	779	:type 'function)
	780
	781	;;;; HTML-specific
	782
	783	(defcustom org-html-allow-name-attribute-in-anchors nil
	784	"When nil, do not set \"name\" attribute in anchors.
	785	By default, when appropriate, anchors are formatted with \"id\"
	786	but without \"name\" attribute."
	787	:group 'org-export-html
	788	:version "24.4"
	789	:package-version '(Org . "8.0")
	790	:type 'boolean)
	791
	792	;;;; Inlinetasks
	793
	794	(defcustom org-html-format-inlinetask-function
	795	'org-html-format-inlinetask-default-function
	796	"Function called to format an inlinetask in HTML code.
	797
	798	The function must accept seven parameters:
	799	TODO the todo keyword, as a string
	800	TODO-TYPE the todo type, a symbol among `todo', `done' and nil.
	801	PRIORITY the inlinetask priority, as a string
	802	NAME the inlinetask name, as a string.
	803	TAGS the inlinetask tags, as a list of strings.
	804	CONTENTS the contents of the inlinetask, as a string.
	805	INFO the export options, as a plist
	806
	807	The function should return the string to be exported."
	808	:group 'org-export-html
	809	:version "26.1"
	810	:package-version '(Org . "8.3")
	811	:type 'function)
	812
	813	;;;; LaTeX
	814
	815	(defcustom org-html-with-latex org-export-with-latex
	816	"Non-nil means process LaTeX math snippets.
	817
	818	When set, the exporter will process LaTeX environments and
	819	fragments.
	820
	821	This option can also be set with the +OPTIONS line,
	822	e.g. \"tex:mathjax\". Allowed values are:
	823
	824	nil Ignore math snippets.
	825	`verbatim' Keep everything in verbatim
	826	`mathjax', t Do MathJax preprocessing and arrange for MathJax.js to
	827	be loaded.
	828	SYMBOL Any symbol defined in `org-preview-latex-process-alist',
	829	e.g., `dvipng'."
	830	:group 'org-export-html
	831	:version "24.4"
	832	:package-version '(Org . "8.0")
	833	:type '(choice
	834	(const :tag "Do not process math in any way" nil)
	835	(const :tag "Leave math verbatim" verbatim)
	836	(const :tag "Use MathJax to display math" mathjax)
	837	(symbol :tag "Convert to image to display math" :value dvipng)))
	838
	839	;;;; Links :: Generic
	840
	841	(defcustom org-html-link-org-files-as-html t
	842	"Non-nil means make file links to `file.org' point to `file.html'.
	843	When `org-mode' is exporting an `org-mode' file to HTML, links to
	844	non-html files are directly put into a href tag in HTML.
	845	However, links to other Org files (recognized by the extension
	846	\".org\") should become links to the corresponding HTML
	847	file, assuming that the linked `org-mode' file will also be
	848	converted to HTML.
	849	When nil, the links still point to the plain \".org\" file."
	850	:group 'org-export-html
	851	:type 'boolean)
	852
	853	;;;; Links :: Inline images
	854
	855	(defcustom org-html-inline-images t
	856	"Non-nil means inline images into exported HTML pages.
	857	This is done using an <img> tag. When nil, an anchor with href is used to
	858	link to the image."
	859	:group 'org-export-html
	860	:version "24.4"
	861	:package-version '(Org . "8.1")
	862	:type 'boolean)
	863
	864	(defcustom org-html-inline-image-rules
	865	'(("file" . "\\.\\(jpeg\\\|jpg\\\|png\\\|gif\\\|svg\\)\\'")
	866	("http" . "\\.\\(jpeg\\\|jpg\\\|png\\\|gif\\\|svg\\)\\'")
	867	("https" . "\\.\\(jpeg\\\|jpg\\\|png\\\|gif\\\|svg\\)\\'"))
	868	"Rules characterizing image files that can be inlined into HTML.
	869	A rule consists in an association whose key is the type of link
	870	to consider, and value is a regexp that will be matched against
	871	link's path."
	872	:group 'org-export-html
	873	:version "24.4"
	874	:package-version '(Org . "8.0")
	875	:type '(alist :key-type (string :tag "Type")
	876	:value-type (regexp :tag "Path")))
	877
	878	;;;; Plain Text
	879
	880	(defvar org-html-protect-char-alist
	881	'(("&" . "&")
	882	("<" . "<")
	883	(">" . ">"))
	884	"Alist of characters to be converted by `org-html-encode-plain-text'.")
	885
	886	;;;; Src Block
	887
	888	(defcustom org-html-htmlize-output-type 'inline-css
	889	"Output type to be used by htmlize when formatting code snippets.
	890	Choices are `css' to export the CSS selectors only,`inline-css'
	891	to export the CSS attribute values inline in the HTML or `nil' to
	892	export plain text. We use as default `inline-css', in order to
	893	make the resulting HTML self-containing.
	894
	895	However, this will fail when using Emacs in batch mode for export, because
	896	then no rich font definitions are in place. It will also not be good if
	897	people with different Emacs setup contribute HTML files to a website,
	898	because the fonts will represent the individual setups. In these cases,
	899	it is much better to let Org/Htmlize assign classes only, and to use
	900	a style file to define the look of these classes.
	901	To get a start for your css file, start Emacs session and make sure that
	902	all the faces you are interested in are defined, for example by loading files
	903	in all modes you want. Then, use the command
	904	`\\[org-html-htmlize-generate-css]' to extract class definitions."
	905	:group 'org-export-html
	906	:type '(choice (const css) (const inline-css) (const nil)))
	907
	908	(defcustom org-html-htmlize-font-prefix "org-"
	909	"The prefix for CSS class names for htmlize font specifications."
	910	:group 'org-export-html
	911	:type 'string)
	912
	913	;;;; Table
	914
	915	(defcustom org-html-table-default-attributes
	916	'(:border "2" :cellspacing "0" :cellpadding "6" :rules "groups" :frame "hsides")
	917	"Default attributes and values which will be used in table tags.
	918	This is a plist where attributes are symbols, starting with
	919	colons, and values are strings.
	920
	921	When exporting to HTML5, these values will be disregarded."
	922	:group 'org-export-html
	923	:version "24.4"
	924	:package-version '(Org . "8.0")
	925	:type '(plist :key-type (symbol :tag "Property")
	926	:value-type (string :tag "Value")))
	927
	928	(defcustom org-html-table-header-tags '("<th scope=\"%s\"%s>" . "</th>")
	929	"The opening and ending tags for table header fields.
	930	This is customizable so that alignment options can be specified.
	931	The first %s will be filled with the scope of the field, either row or col.
	932	The second %s will be replaced by a style entry to align the field.
	933	See also the variable `org-html-table-use-header-tags-for-first-column'.
	934	See also the variable `org-html-table-align-individual-fields'."
	935	:group 'org-export-html
	936	:type '(cons (string :tag "Opening tag") (string :tag "Closing tag")))
	937
	938	(defcustom org-html-table-data-tags '("<td%s>" . "</td>")
	939	"The opening and ending tags for table data fields.
	940	This is customizable so that alignment options can be specified.
	941	The first %s will be filled with the scope of the field, either row or col.
	942	The second %s will be replaced by a style entry to align the field.
	943	See also the variable `org-html-table-align-individual-fields'."
	944	:group 'org-export-html
	945	:type '(cons (string :tag "Opening tag") (string :tag "Closing tag")))
	946
	947	(defcustom org-html-table-row-open-tag "<tr>"
	948	"The opening tag for table rows.
	949	This is customizable so that alignment options can be specified.
	950	Instead of strings, these can be a Lisp function that will be
	951	evaluated for each row in order to construct the table row tags.
	952
	953	The function will be called with these arguments:
	954
	955	`number': row number (0 is the first row)
	956	`group-number': group number of current row
	957	`start-group?': non-nil means the row starts a group
	958	`end-group?': non-nil means the row ends a group
	959	`top?': non-nil means this is the top row
	960	`bottom?': non-nil means this is the bottom row
	961
	962	For example:
	963
	964	(setq org-html-table-row-open-tag
	965	(lambda (number group-number start-group? end-group-p top? bottom?)
	966	(cond (top? \"<tr class=\\\"tr-top\\\">\")
	967	(bottom? \"<tr class=\\\"tr-bottom\\\">\")
	968	(t (if (= (mod number 2) 1)
	969	\"<tr class=\\\"tr-odd\\\">\"
	970	\"<tr class=\\\"tr-even\\\">\")))))
	971
	972	will use the \"tr-top\" and \"tr-bottom\" classes for the top row
	973	and the bottom row, and otherwise alternate between \"tr-odd\" and
	974	\"tr-even\" for odd and even rows."
	975	:group 'org-export-html
	976	:type '(choice :tag "Opening tag"
	977	(string :tag "Specify")
	978	(function)))
	979
	980	(defcustom org-html-table-row-close-tag "</tr>"
	981	"The closing tag for table rows.
	982	This is customizable so that alignment options can be specified.
	983	Instead of strings, this can be a Lisp function that will be
	984	evaluated for each row in order to construct the table row tags.
	985
	986	See documentation of `org-html-table-row-open-tag'."
	987	:group 'org-export-html
	988	:type '(choice :tag "Closing tag"
	989	(string :tag "Specify")
	990	(function)))
	991
	992	(defcustom org-html-table-align-individual-fields t
	993	"Non-nil means attach style attributes for alignment to each table field.
	994	When nil, alignment will only be specified in the column tags, but this
	995	is ignored by some browsers (like Firefox, Safari). Opera does it right
	996	though."
	997	:group 'org-export-html
	998	:type 'boolean)
	999
	1000	(defcustom org-html-table-use-header-tags-for-first-column nil
	1001	"Non-nil means format column one in tables with header tags.
	1002	When nil, also column one will use data tags."
	1003	:group 'org-export-html
	1004	:type 'boolean)
	1005
	1006	(defcustom org-html-table-caption-above t
	1007	"When non-nil, place caption string at the beginning of the table.
	1008	Otherwise, place it near the end."
	1009	:group 'org-export-html
	1010	:type 'boolean)
	1011
	1012	;;;; Tags
	1013
	1014	(defcustom org-html-tag-class-prefix ""
	1015	"Prefix to class names for TODO keywords.
	1016	Each tag gets a class given by the tag itself, with this prefix.
	1017	The default prefix is empty because it is nice to just use the keyword
	1018	as a class name. But if you get into conflicts with other, existing
	1019	CSS classes, then this prefix can be very useful."
	1020	:group 'org-export-html
	1021	:type 'string)
	1022
	1023	;;;; Template :: Generic
	1024
	1025	(defcustom org-html-extension "html"
	1026	"The extension for exported HTML files."
	1027	:group 'org-export-html
	1028	:type 'string)
	1029
	1030	(defcustom org-html-xml-declaration
	1031	'(("html" . "<?xml version=\"1.0\" encoding=\"%s\"?>")
	1032	("php" . "<?php echo \"<?xml version=\\\"1.0\\\" encoding=\\\"%s\\\" ?>\"; ?>"))
	1033	"The extension for exported HTML files.
	1034	%s will be replaced with the charset of the exported file.
	1035	This may be a string, or an alist with export extensions
	1036	and corresponding declarations.
	1037
	1038	This declaration only applies when exporting to XHTML."
	1039	:group 'org-export-html
	1040	:type '(choice
	1041	(string :tag "Single declaration")
	1042	(repeat :tag "Dependent on extension"
	1043	(cons (string :tag "Extension")
	1044	(string :tag "Declaration")))))
	1045
	1046	(defcustom org-html-coding-system 'utf-8
	1047	"Coding system for HTML export.
	1048	Use utf-8 as the default value."
	1049	:group 'org-export-html
	1050	:version "24.4"
	1051	:package-version '(Org . "8.0")
	1052	:type 'coding-system)
	1053
	1054	(defcustom org-html-doctype "xhtml-strict"
	1055	"Document type definition to use for exported HTML files.
	1056	Can be set with the in-buffer HTML_DOCTYPE property or for
	1057	publishing, with :html-doctype."
	1058	:group 'org-export-html
	1059	:version "24.4"
	1060	:package-version '(Org . "8.0")
	1061	:type (append
	1062	'(choice)
	1063	(mapcar (lambda (x) `(const ,(car x))) org-html-doctype-alist)
	1064	'((string :tag "Custom doctype" ))))
	1065
	1066	(defcustom org-html-html5-fancy nil
	1067	"Non-nil means using new HTML5 elements.
	1068	This variable is ignored for anything other than HTML5 export.
	1069
	1070	For compatibility with Internet Explorer, it's probably a good
	1071	idea to download some form of the html5shiv (for instance
	1072	https://code.google.com/p/html5shiv/) and add it to your
	1073	HTML_HEAD_EXTRA, so that your pages don't break for users of IE
	1074	versions 8 and below."
	1075	:group 'org-export-html
	1076	:version "24.4"
	1077	:package-version '(Org . "8.0")
	1078	:type 'boolean)
	1079
	1080	(defcustom org-html-container-element "div"
	1081	"HTML element to use for wrapping top level sections.
	1082	Can be set with the in-buffer HTML_CONTAINER property or for
	1083	publishing, with :html-container.
	1084
	1085	Note that changing the default will prevent you from using
	1086	org-info.js for your website."
	1087	:group 'org-export-html
	1088	:version "24.4"
	1089	:package-version '(Org . "8.0")
	1090	:type 'string)
	1091
	1092	(defcustom org-html-divs
	1093	'((preamble "div" "preamble")
	1094	(content "div" "content")
	1095	(postamble "div" "postamble"))
	1096	"Alist of the three section elements for HTML export.
	1097	The car of each entry is one of `preamble', `content' or `postamble'.
	1098	The cdrs of each entry are the ELEMENT_TYPE and ID for each
	1099	section of the exported document.
	1100
	1101	Note that changing the default will prevent you from using
	1102	org-info.js for your website."
	1103	:group 'org-export-html
	1104	:version "24.4"
	1105	:package-version '(Org . "8.0")
	1106	:type '(list :greedy t
	1107	(list :tag "Preamble"
	1108	(const :format "" preamble)
	1109	(string :tag "element") (string :tag " id"))
	1110	(list :tag "Content"
	1111	(const :format "" content)
	1112	(string :tag "element") (string :tag " id"))
	1113	(list :tag "Postamble" (const :format "" postamble)
	1114	(string :tag " id") (string :tag "element"))))
	1115
	1116	(defconst org-html-checkbox-types
	1117	'((unicode .
	1118	((on . "☑") (off . "☐") (trans . "☐")))
	1119	(ascii .
	1120	((on . "<code>[X]</code>")
	1121	(off . "<code>[ ]</code>")
	1122	(trans . "<code>[-]</code>")))
	1123	(html .
	1124	((on . "<input type='checkbox' checked='checked' />")
	1125	(off . "<input type='checkbox' />")
	1126	(trans . "<input type='checkbox' />"))))
	1127	"Alist of checkbox types.
	1128	The cdr of each entry is an alist list three checkbox types for
	1129	HTML export: `on', `off' and `trans'.
	1130
	1131	The choices are:
	1132	`unicode' Unicode characters (HTML entities)
	1133	`ascii' ASCII characters
	1134	`html' HTML checkboxes
	1135
	1136	Note that only the ascii characters implement tri-state
	1137	checkboxes. The other two use the `off' checkbox for `trans'.")
	1138
	1139	(defcustom org-html-checkbox-type 'ascii
	1140	"The type of checkboxes to use for HTML export.
	1141	See `org-html-checkbox-types' for for the values used for each
	1142	option."
	1143	:group 'org-export-html
	1144	:version "24.4"
	1145	:package-version '(Org . "8.0")
	1146	:type '(choice
	1147	(const :tag "ASCII characters" ascii)
	1148	(const :tag "Unicode characters" unicode)
	1149	(const :tag "HTML checkboxes" html)))
	1150
	1151	(defcustom org-html-metadata-timestamp-format "%Y-%m-%d %a %H:%M"
	1152	"Format used for timestamps in preamble, postamble and metadata.
	1153	See `format-time-string' for more information on its components."
	1154	:group 'org-export-html
	1155	:version "24.4"
	1156	:package-version '(Org . "8.0")
	1157	:type 'string)
	1158
	1159	;;;; Template :: Mathjax
	1160
	1161	(defcustom org-html-mathjax-options
	1162	'((path "https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js?config=TeX-AMS_HTML" )
	1163	(scale "100")
	1164	(align "center")
	1165	(font "TeX")
	1166	(linebreaks "false")
	1167	(autonumber "AMS")
	1168	(indent "0em")
	1169	(multlinewidth "85%")
	1170	(tagindent ".8em")
	1171	(tagside "right"))
	1172	"Options for MathJax setup.
	1173
	1174	Alist of the following elements. All values are strings.
	1175
	1176	path The path to MathJax.
	1177	scale Scaling with HTML-CSS, MathML and SVG output engines.
	1178	align How to align display math: left, center, or right.
	1179	font The font to use with HTML-CSS and SVG output. As of MathJax 2.5
	1180	the following values are understood: \"TeX\", \"STIX-Web\",
	1181	\"Asana-Math\", \"Neo-Euler\", \"Gyre-Pagella\",
	1182	\"Gyre-Termes\", and \"Latin-Modern\".
	1183	linebreaks Let MathJax perform automatic linebreaks. Valid values
	1184	are \"true\" and \"false\".
	1185	indent If align is not center, how far from the left/right side?
	1186	Valid values are \"left\" and \"right\"
	1187	multlinewidth The width of the multline environment.
	1188	autonumber How to number equations. Valid values are \"None\",
	1189	\"all\" and \"AMS Math\".
	1190	tagindent The amount tags are indented.
	1191	tagside Which side to show tags/labels on. Valid values are
	1192	\"left\" and \"right\"
	1193
	1194	You can also customize this for each buffer, using something like
	1195
	1196	#+HTML_MATHJAX: align: left indent: 5em tagside: left font: Neo-Euler
	1197
	1198	For further information about MathJax options, see the MathJax documentation:
	1199
	1200	http://docs.mathjax.org/"
	1201	:group 'org-export-html
	1202	:package-version '(Org . "8.3")
	1203	:type '(list :greedy t
	1204	(list :tag "path (the path from where to load MathJax.js)"
	1205	(const :format " " path) (string))
	1206	(list :tag "scale (scaling for the displayed math)"
	1207	(const :format " " scale) (string))
	1208	(list :tag "align (alignment of displayed equations)"
	1209	(const :format " " align) (string))
	1210	(list :tag "font (used to display math)"
	1211	(const :format " " font)
	1212	(choice (const "TeX")
	1213	(const "STIX-Web")
	1214	(const "Asana-Math")
	1215	(const "Neo-Euler")
	1216	(const "Gyre-Pagella")
	1217	(const "Gyre-Termes")
	1218	(const "Latin-Modern")))
	1219	(list :tag "linebreaks (automatic line-breaking)"
	1220	(const :format " " linebreaks)
	1221	(choice (const "true")
	1222	(const "false")))
	1223	(list :tag "autonumber (when should equations be numbered)"
	1224	(const :format " " autonumber)
	1225	(choice (const "AMS")
	1226	(const "None")
	1227	(const "All")))
	1228	(list :tag "indent (indentation with left or right alignment)"
	1229	(const :format " " indent) (string))
	1230	(list :tag "multlinewidth (width to use for the multline environment)"
	1231	(const :format " " multlinewidth) (string))
	1232	(list :tag "tagindent (the indentation of tags from left or right)"
	1233	(const :format " " tagindent) (string))
	1234	(list :tag "tagside (location of tags)"
	1235	(const :format " " tagside)
	1236	(choice (const "left")
	1237	(const "right")))))
	1238
	1239	(defcustom org-html-mathjax-template
	1240	"<script type=\"text/x-mathjax-config\">
	1241	MathJax.Hub.Config({
	1242	displayAlign: \"%ALIGN\",
	1243	displayIndent: \"%INDENT\",
	1244
	1245	\"HTML-CSS\": { scale: %SCALE,
	1246	linebreaks: { automatic: \"%LINEBREAKS\" },
	1247	webFont: \"%FONT\"
	1248	},
	1249	SVG: {scale: %SCALE,
	1250	linebreaks: { automatic: \"%LINEBREAKS\" },
	1251	font: \"%FONT\"},
	1252	NativeMML: {scale: %SCALE},
	1253	TeX: { equationNumbers: {autoNumber: \"%AUTONUMBER\"},
	1254	MultLineWidth: \"%MULTLINEWIDTH\",
	1255	TagSide: \"%TAGSIDE\",
	1256	TagIndent: \"%TAGINDENT\"
	1257	}
	1258	});
	1259	</script>
	1260	<script type=\"text/javascript\"
	1261	src=\"%PATH\"></script>"
	1262	"The MathJax template. See also `org-html-mathjax-options'."
	1263	:group 'org-export-html
	1264	:type 'string)
	1265
	1266	;;;; Template :: Postamble
	1267
	1268	(defcustom org-html-postamble 'auto
	1269	"Non-nil means insert a postamble in HTML export.
	1270
	1271	When set to `auto', check against the
	1272	`org-export-with-author/email/creator/date' variables to set the
	1273	content of the postamble. When set to a string, use this string
	1274	as the postamble. When t, insert a string as defined by the
	1275	formatting string in `org-html-postamble-format'.
	1276
	1277	When set to a function, apply this function and insert the
	1278	returned string. The function takes the property list of export
	1279	options as its only argument.
	1280
	1281	Setting :html-postamble in publishing projects will take
	1282	precedence over this variable."
	1283	:group 'org-export-html
	1284	:type '(choice (const :tag "No postamble" nil)
	1285	(const :tag "Auto postamble" auto)
	1286	(const :tag "Default formatting string" t)
	1287	(string :tag "Custom formatting string")
	1288	(function :tag "Function (must return a string)")))
	1289
	1290	(defcustom org-html-postamble-format
	1291	'(("en" "<p class=\"author\">Author: %a (%e)</p>
	1292	<p class=\"date\">Date: %d</p>
	1293	<p class=\"creator\">%c</p>
	1294	<p class=\"validation\">%v</p>"))
	1295	"Alist of languages and format strings for the HTML postamble.
	1296
	1297	The first element of each list is the language code, as used for
	1298	the LANGUAGE keyword. See `org-export-default-language'.
	1299
	1300	The second element of each list is a format string to format the
	1301	postamble itself. This format string can contain these elements:
	1302
	1303	%t stands for the title.
	1304	%s stands for the subtitle.
	1305	%a stands for the author's name.
	1306	%e stands for the author's email.
	1307	%d stands for the date.
	1308	%c will be replaced by `org-html-creator-string'.
	1309	%v will be replaced by `org-html-validation-link'.
	1310	%T will be replaced by the export time.
	1311	%C will be replaced by the last modification time.
	1312
	1313	If you need to use a \"%\" character, you need to escape it
	1314	like that: \"%%\"."
	1315	:group 'org-export-html
	1316	:type '(repeat
	1317	(list (string :tag "Language")
	1318	(string :tag "Format string"))))
	1319
	1320	(defcustom org-html-validation-link
	1321	"<a href=\"http://validator.w3.org/check?uri=referer\">Validate</a>"
	1322	"Link to HTML validation service."
	1323	:group 'org-export-html
	1324	:type 'string)
	1325
	1326	(defcustom org-html-creator-string
	1327	(format "<a href=\"https://www.gnu.org/software/emacs/\">Emacs</a> %s (<a href=\"https://orgmode.org\">Org</a> mode %s)"
	1328	emacs-version
	1329	(if (fboundp 'org-version) (org-version) "unknown version"))
	1330	"Information about the creator of the HTML document.
	1331	This option can also be set on with the CREATOR keyword."
	1332	:group 'org-export-html
	1333	:version "24.4"
	1334	:package-version '(Org . "8.0")
	1335	:type '(string :tag "Creator string"))
	1336
	1337	;;;; Template :: Preamble
	1338
	1339	(defcustom org-html-preamble t
	1340	"Non-nil means insert a preamble in HTML export.
	1341
	1342	When t, insert a string as defined by the formatting string in
	1343	`org-html-preamble-format'. When set to a string, use this
	1344	formatting string instead (see `org-html-postamble-format' for an
	1345	example of such a formatting string).
	1346
	1347	When set to a function, apply this function and insert the
	1348	returned string. The function takes the property list of export
	1349	options as its only argument.
	1350
	1351	Setting :html-preamble in publishing projects will take
	1352	precedence over this variable."
	1353	:group 'org-export-html
	1354	:type '(choice (const :tag "No preamble" nil)
	1355	(const :tag "Default preamble" t)
	1356	(string :tag "Custom formatting string")
	1357	(function :tag "Function (must return a string)")))
	1358
	1359	(defcustom org-html-preamble-format '(("en" ""))
	1360	"Alist of languages and format strings for the HTML preamble.
	1361
	1362	The first element of each list is the language code, as used for
	1363	the LANGUAGE keyword. See `org-export-default-language'.
	1364
	1365	The second element of each list is a format string to format the
	1366	preamble itself. This format string can contain these elements:
	1367
	1368	%t stands for the title.
	1369	%s stands for the subtitle.
	1370	%a stands for the author's name.
	1371	%e stands for the author's email.
	1372	%d stands for the date.
	1373	%c will be replaced by `org-html-creator-string'.
	1374	%v will be replaced by `org-html-validation-link'.
	1375	%T will be replaced by the export time.
	1376	%C will be replaced by the last modification time.
	1377
	1378	If you need to use a \"%\" character, you need to escape it
	1379	like that: \"%%\".
	1380
	1381	See the default value of `org-html-postamble-format' for an
	1382	example."
	1383	:group 'org-export-html
	1384	:type '(repeat
	1385	(list (string :tag "Language")
	1386	(string :tag "Format string"))))
	1387
	1388	(defcustom org-html-link-up ""
	1389	"Where should the \"UP\" link of exported HTML pages lead?"
	1390	:group 'org-export-html
	1391	:type '(string :tag "File or URL"))
	1392
	1393	(defcustom org-html-link-home ""
	1394	"Where should the \"HOME\" link of exported HTML pages lead?"
	1395	:group 'org-export-html
	1396	:type '(string :tag "File or URL"))
	1397
	1398	(defcustom org-html-link-use-abs-url nil
	1399	"Should we prepend relative links with HTML_LINK_HOME?"
	1400	:group 'org-export-html
	1401	:version "24.4"
	1402	:package-version '(Org . "8.1")
	1403	:type 'boolean)
	1404
	1405	(defcustom org-html-home/up-format
	1406	"<div id=\"org-div-home-and-up\">
	1407	<a accesskey=\"h\" href=\"%s\"> UP </a>
	1408	\|
	1409	<a accesskey=\"H\" href=\"%s\"> HOME </a>
	1410	</div>"
	1411	"Snippet used to insert the HOME and UP links.
	1412	This is a format string, the first %s will receive the UP link,
	1413	the second the HOME link. If both `org-html-link-up' and
	1414	`org-html-link-home' are empty, the entire snippet will be
	1415	ignored."
	1416	:group 'org-export-html
	1417	:type 'string)
	1418
	1419	;;;; Template :: Scripts
	1420
	1421	(defcustom org-html-head-include-scripts t
	1422	"Non-nil means include the JavaScript snippets in exported HTML files.
	1423	The actual script is defined in `org-html-scripts' and should
	1424	not be modified."
	1425	:group 'org-export-html
	1426	:version "24.4"
	1427	:package-version '(Org . "8.0")
	1428	:type 'boolean)
	1429
	1430	;;;; Template :: Styles
	1431
	1432	(defcustom org-html-head-include-default-style t
	1433	"Non-nil means include the default style in exported HTML files.
	1434	The actual style is defined in `org-html-style-default' and
	1435	should not be modified. Use `org-html-head' to use your own
	1436	style information."
	1437	:group 'org-export-html
	1438	:version "24.4"
	1439	:package-version '(Org . "8.0")
	1440	:type 'boolean)
	1441	;;;###autoload
	1442	(put 'org-html-head-include-default-style 'safe-local-variable 'booleanp)
	1443
	1444	(defcustom org-html-head ""
	1445	"Org-wide head definitions for exported HTML files.
	1446
	1447	This variable can contain the full HTML structure to provide a
	1448	style, including the surrounding HTML tags. You can consider
	1449	including definitions for the following classes: title, todo,
	1450	done, timestamp, timestamp-kwd, tag, target.
	1451
	1452	For example, a valid value would be:
	1453
	1454	<style type=\"text/css\">
	1455	/<![CDATA[/
	1456	p { font-weight: normal; color: gray; }
	1457	h1 { color: black; }
	1458	.title { text-align: center; }
	1459	.todo, .timestamp-kwd { color: red; }
	1460	.done { color: green; }
	1461	/]]>/
	1462	</style>
	1463
	1464	If you want to refer to an external style, use something like
	1465
	1466	<link rel=\"stylesheet\" type=\"text/css\" href=\"mystyles.css\" />
	1467
	1468	As the value of this option simply gets inserted into the HTML
	1469	<head> header, you can use it to add any arbitrary text to the
	1470	header.
	1471
	1472	You can set this on a per-file basis using #+HTML_HEAD:,
	1473	or for publication projects using the :html-head property."
	1474	:group 'org-export-html
	1475	:version "24.4"
	1476	:package-version '(Org . "8.0")
	1477	:type 'string)
	1478	;;;###autoload
	1479	(put 'org-html-head 'safe-local-variable 'stringp)
	1480
	1481	(defcustom org-html-head-extra ""
	1482	"More head information to add in the HTML output.
	1483
	1484	You can set this on a per-file basis using #+HTML_HEAD_EXTRA:,
	1485	or for publication projects using the :html-head-extra property."
	1486	:group 'org-export-html
	1487	:version "24.4"
	1488	:package-version '(Org . "8.0")
	1489	:type 'string)
	1490	;;;###autoload
	1491	(put 'org-html-head-extra 'safe-local-variable 'stringp)
	1492
	1493	;;;; Template :: Viewport
	1494
	1495	(defcustom org-html-viewport '((width "device-width")
	1496	(initial-scale "1")
	1497	(minimum-scale "")
	1498	(maximum-scale "")
	1499	(user-scalable ""))
	1500	"Viewport options for mobile-optimized sites.
	1501
	1502	The following values are recognized
	1503
	1504	width Size of the viewport.
	1505	initial-scale Zoom level when the page is first loaded.
	1506	minimum-scale Minimum allowed zoom level.
	1507	maximum-scale Maximum allowed zoom level.
	1508	user-scalable Whether zoom can be changed.
	1509
	1510	The viewport meta tag is inserted if this variable is non-nil.
	1511
	1512	See the following site for a reference:
	1513	https://developer.mozilla.org/en-US/docs/Mozilla/Mobile/Viewport_meta_tag"
	1514	:group 'org-export-html
	1515	:version "26.1"
	1516	:package-version '(Org . "8.3")
	1517	:type '(choice (const :tag "Disable" nil)
	1518	(list :tag "Enable"
	1519	(list :tag "Width of viewport"
	1520	(const :format " " width)
	1521	(choice (const :tag "unset" "")
	1522	(string)))
	1523	(list :tag "Initial scale"
	1524	(const :format " " initial-scale)
	1525	(choice (const :tag "unset" "")
	1526	(string)))
	1527	(list :tag "Minimum scale/zoom"
	1528	(const :format " " minimum-scale)
	1529	(choice (const :tag "unset" "")
	1530	(string)))
	1531	(list :tag "Maximum scale/zoom"
	1532	(const :format " " maximum-scale)
	1533	(choice (const :tag "unset" "")
	1534	(string)))
	1535	(list :tag "User scalable/zoomable"
	1536	(const :format " " user-scalable)
	1537	(choice (const :tag "unset" "")
	1538	(const "true")
	1539	(const "false"))))))
	1540
	1541	;; Handle source code blocks with Klipse
	1542
	1543	(defcustom org-html-klipsify-src nil
	1544	"When non-nil, source code blocks are editable in exported presentation."
	1545	:group 'org-export-html
	1546	:package-version '(Org . "9.1")
	1547	:type 'boolean)
	1548
	1549	(defcustom org-html-klipse-css
	1550	"https://storage.googleapis.com/app.klipse.tech/css/codemirror.css"
	1551	"Location of the codemirror CSS file for use with klipse."
	1552	:group 'org-export-html
	1553	:package-version '(Org . "9.1")
	1554	:type 'string)
	1555
	1556	(defcustom org-html-klipse-js
	1557	"https://storage.googleapis.com/app.klipse.tech/plugin_prod/js/klipse_plugin.min.js"
	1558	"Location of the klipse javascript file."
	1559	:group 'org-export-html
	1560	:type 'string)
	1561
	1562	(defcustom org-html-klipse-selection-script
	1563	"window.klipse_settings = {selector_eval_html: '.src-html',
	1564	selector_eval_js: '.src-js',
	1565	selector_eval_python_client: '.src-python',
	1566	selector_eval_scheme: '.src-scheme',
	1567	selector: '.src-clojure',
	1568	selector_eval_ruby: '.src-ruby'};"
	1569	"Javascript snippet to activate klipse."
	1570	:group 'org-export-html
	1571	:package-version '(Org . "9.1")
	1572	:type 'string)
	1573
	1574
	1575	;;;; Todos
	1576
	1577	(defcustom org-html-todo-kwd-class-prefix ""
	1578	"Prefix to class names for TODO keywords.
	1579	Each TODO keyword gets a class given by the keyword itself, with this prefix.
	1580	The default prefix is empty because it is nice to just use the keyword
	1581	as a class name. But if you get into conflicts with other, existing
	1582	CSS classes, then this prefix can be very useful."
	1583	:group 'org-export-html
	1584	:type 'string)
	1585
	1586
	1587	;;; Internal Functions
	1588
	1589	(defun org-html-xhtml-p (info)
	1590	(let ((dt (downcase (plist-get info :html-doctype))))
	1591	(string-match-p "xhtml" dt)))
	1592
	1593	(defun org-html-html5-p (info)
	1594	(let ((dt (downcase (plist-get info :html-doctype))))
	1595	(member dt '("html5" "xhtml5" "<!doctype html>"))))
	1596
	1597	(defun org-html--html5-fancy-p (info)
	1598	"Non-nil when exporting to HTML5 with fancy elements.
	1599	INFO is the current state of the export process, as a plist."
	1600	(and (plist-get info :html-html5-fancy)
	1601	(org-html-html5-p info)))
	1602
	1603	(defun org-html-close-tag (tag attr info)
	1604	"Return close-tag for string TAG.
	1605	ATTR specifies additional attributes. INFO is a property list
	1606	containing current export state."
	1607	(concat "<" tag
	1608	(org-string-nw-p (concat " " attr))
	1609	(if (org-html-xhtml-p info) " />" ">")))
	1610
	1611	(defun org-html-doctype (info)
	1612	"Return correct HTML doctype tag.
	1613	INFO is a plist used as a communication channel. Doctype tag is
	1614	extracted from `org-html-doctype-alist', or the literal value
	1615	of :html-doctype from INFO if :html-doctype is not found in the
	1616	alist."
	1617	(let ((dt (plist-get info :html-doctype)))
	1618	(or (cdr (assoc dt org-html-doctype-alist)) dt)))
	1619
	1620	(defun org-html--make-attribute-string (attributes)
	1621	"Return a list of attributes, as a string.
	1622	ATTRIBUTES is a plist where values are either strings or nil. An
	1623	attribute with a nil value will be omitted from the result."
	1624	(let (output)
	1625	(dolist (item attributes (mapconcat 'identity (nreverse output) " "))
	1626	(cond ((null item) (pop output))
	1627	((symbolp item) (push (substring (symbol-name item) 1) output))
	1628	(t (let ((key (car output))
	1629	(value (replace-regexp-in-string
	1630	"\"" """ (org-html-encode-plain-text item))))
	1631	(setcar output (format "%s=\"%s\"" key value))))))))
	1632
	1633	(defun org-html--wrap-image (contents info &optional caption label)
	1634	"Wrap CONTENTS string within an appropriate environment for images.
	1635	INFO is a plist used as a communication channel. When optional
	1636	arguments CAPTION and LABEL are given, use them for caption and
	1637	\"id\" attribute."
	1638	(let ((html5-fancy (org-html--html5-fancy-p info)))
	1639	(format (if html5-fancy "\n<figure%s>\n%s%s\n</figure>"
	1640	"\n<div%s class=\"figure\">\n%s%s\n</div>")
	1641	;; ID.
	1642	(if (org-string-nw-p label) (format " id=\"%s\"" label) "")
	1643	;; Contents.
	1644	(if html5-fancy contents (format "<p>%s</p>" contents))
	1645	;; Caption.
	1646	(if (not (org-string-nw-p caption)) ""
	1647	(format (if html5-fancy "\n<figcaption>%s</figcaption>"
	1648	"\n<p>%s</p>")
	1649	caption)))))
	1650
	1651	(defun org-html--format-image (source attributes info)
	1652	"Return \"img\" tag with given SOURCE and ATTRIBUTES.
	1653	SOURCE is a string specifying the location of the image.
	1654	ATTRIBUTES is a plist, as returned by
	1655	`org-export-read-attribute'. INFO is a plist used as
	1656	a communication channel."
	1657	(if (string= "svg" (file-name-extension source))
	1658	(org-html--svg-image source attributes info)
	1659	(org-html-close-tag
	1660	"img"
	1661	(org-html--make-attribute-string
	1662	(org-combine-plists
	1663	(list :src source
	1664	:alt (if (string-match-p "^ltxpng/" source)
	1665	(org-html-encode-plain-text
	1666	(org-find-text-property-in-string 'org-latex-src source))
	1667	(file-name-nondirectory source)))
	1668	attributes))
	1669	info)))
	1670
	1671	(defun org-html--svg-image (source attributes info)
	1672	"Return \"object\" embedding svg file SOURCE with given ATTRIBUTES.
	1673	INFO is a plist used as a communication channel.
	1674
	1675	The special attribute \"fallback\" can be used to specify a
	1676	fallback image file to use if the object embedding is not
	1677	supported. CSS class \"org-svg\" is assigned as the class of the
	1678	object unless a different class is specified with an attribute."
	1679	(let ((fallback (plist-get attributes :fallback))
	1680	(attrs (org-html--make-attribute-string
	1681	(org-combine-plists
	1682	;; Remove fallback attribute, which is not meant to
	1683	;; appear directly in the attributes string, and
	1684	;; provide a default class if none is set.
	1685	'(:class "org-svg") attributes '(:fallback nil)))))
	1686	(format "<object type=\"image/svg+xml\" data=\"%s\" %s>\n%s</object>"
	1687	source
	1688	attrs
	1689	(if fallback
	1690	(org-html-close-tag
	1691	"img" (format "src=\"%s\" %s" fallback attrs) info)
	1692	"Sorry, your browser does not support SVG."))))
	1693
	1694	(defun org-html--textarea-block (element)
	1695	"Transcode ELEMENT into a textarea block.
	1696	ELEMENT is either a src block or an example block."
	1697	(let* ((code (car (org-export-unravel-code element)))
	1698	(attr (org-export-read-attribute :attr_html element)))
	1699	(format "<p>\n<textarea cols=\"%s\" rows=\"%s\">\n%s</textarea>\n</p>"
	1700	(or (plist-get attr :width) 80)
	1701	(or (plist-get attr :height) (org-count-lines code))
	1702	code)))
	1703
	1704	(defun org-html--has-caption-p (element &optional _info)
	1705	"Non-nil when ELEMENT has a caption affiliated keyword.
	1706	INFO is a plist used as a communication channel. This function
	1707	is meant to be used as a predicate for `org-export-get-ordinal' or
	1708	a value to `org-html-standalone-image-predicate'."
	1709	(org-element-property :caption element))
	1710
	1711	;;;; Table
	1712
	1713	(defun org-html-htmlize-region-for-paste (beg end)
	1714	"Convert the region between BEG and END to HTML, using htmlize.el.
	1715	This is much like `htmlize-region-for-paste', only that it uses
	1716	the settings define in the org-... variables."
	1717	(let* ((htmlize-output-type org-html-htmlize-output-type)
	1718	(htmlize-css-name-prefix org-html-htmlize-font-prefix)
	1719	(htmlbuf (htmlize-region beg end)))
	1720	(unwind-protect
	1721	(with-current-buffer htmlbuf
	1722	(buffer-substring (plist-get htmlize-buffer-places 'content-start)
	1723	(plist-get htmlize-buffer-places 'content-end)))
	1724	(kill-buffer htmlbuf))))
	1725
	1726	;;;###autoload
	1727	(defun org-html-htmlize-generate-css ()
	1728	"Create the CSS for all font definitions in the current Emacs session.
	1729	Use this to create face definitions in your CSS style file that can then
	1730	be used by code snippets transformed by htmlize.
	1731	This command just produces a buffer that contains class definitions for all
	1732	faces used in the current Emacs session. You can copy and paste the ones you
	1733	need into your CSS file.
	1734
	1735	If you then set `org-html-htmlize-output-type' to `css', calls
	1736	to the function `org-html-htmlize-region-for-paste' will
	1737	produce code that uses these same face definitions."
	1738	(interactive)
	1739	(or (require 'htmlize nil t)
	1740	(error "Please install htmlize from https://github.com/hniksic/emacs-htmlize"))
	1741	(and (get-buffer "html") (kill-buffer "html"))
	1742	(with-temp-buffer
	1743	(let ((fl (face-list))
	1744	(htmlize-css-name-prefix "org-")
	1745	(htmlize-output-type 'css)
	1746	f i)
	1747	(while (setq f (pop fl)
	1748	i (and f (face-attribute f :inherit)))
	1749	(when (and (symbolp f) (or (not i) (not (listp i))))
	1750	(insert (org-add-props (copy-sequence "1") nil 'face f))))
	1751	(htmlize-region (point-min) (point-max))))
	1752	(pop-to-buffer-same-window "html")
	1753	(goto-char (point-min))
	1754	(if (re-search-forward "<style" nil t)
	1755	(delete-region (point-min) (match-beginning 0)))
	1756	(if (re-search-forward "</style>" nil t)
	1757	(delete-region (1+ (match-end 0)) (point-max)))
	1758	(beginning-of-line 1)
	1759	(if (looking-at " +") (replace-match ""))
	1760	(goto-char (point-min)))
	1761
	1762	(defun org-html--make-string (n string)
	1763	"Build a string by concatenating N times STRING."
	1764	(let (out) (dotimes (_ n out) (setq out (concat string out)))))
	1765
	1766	(defun org-html-fix-class-name (kwd) ; audit callers of this function
	1767	"Turn todo keyword KWD into a valid class name.
	1768	Replaces invalid characters with \"_\"."
	1769	(replace-regexp-in-string "[^a-zA-Z0-9_]" "_" kwd nil t))
	1770
	1771	(defun org-html-footnote-section (info)
	1772	"Format the footnote section.
	1773	INFO is a plist used as a communication channel."
	1774	(let* ((fn-alist (org-export-collect-footnote-definitions info))
	1775	(fn-alist
	1776	(cl-loop for (n _type raw) in fn-alist collect
	1777	(cons n (if (eq (org-element-type raw) 'org-data)
	1778	(org-trim (org-export-data raw info))
	1779	(format "<div class=\"footpara\">%s</div>"
	1780	(org-trim (org-export-data raw info))))))))
	1781	(when fn-alist
	1782	(format
	1783	(plist-get info :html-footnotes-section)
	1784	(org-html--translate "Footnotes" info)
	1785	(format
	1786	"\n%s\n"
	1787	(mapconcat
	1788	(lambda (fn)
	1789	(let ((n (car fn)) (def (cdr fn)))
	1790	(format
	1791	"<div class=\"footdef\">%s %s</div>\n"
	1792	(format
	1793	(plist-get info :html-footnote-format)
	1794	(org-html--anchor
	1795	(format "fn.%d" n)
	1796	n
	1797	(format " class=\"footnum\" href=\"#fnr.%d\"" n)
	1798	info))
	1799	def)))
	1800	fn-alist
	1801	"\n"))))))
	1802
	1803
	1804	;;; Template
	1805
	1806	(defun org-html--build-meta-info (info)
	1807	"Return meta tags for exported document.
	1808	INFO is a plist used as a communication channel."
	1809	(let* ((protect-string
	1810	(lambda (str)
	1811	(replace-regexp-in-string
	1812	"\"" """ (org-html-encode-plain-text str))))
	1813	(title (org-export-data (plist-get info :title) info))
	1814	;; Set title to an invisible character instead of leaving it
	1815	;; empty, which is invalid.
	1816	(title (if (org-string-nw-p title) title "&lrm;"))
	1817	(author (and (plist-get info :with-author)
	1818	(let ((auth (plist-get info :author)))
	1819	(and auth
	1820	;; Return raw Org syntax, skipping non
	1821	;; exportable objects.
	1822	(org-element-interpret-data
	1823	(org-element-map auth
	1824	(cons 'plain-text org-element-all-objects)
	1825	'identity info))))))
	1826	(description (plist-get info :description))
	1827	(keywords (plist-get info :keywords))
	1828	(charset (or (and org-html-coding-system
	1829	(fboundp 'coding-system-get)
	1830	(coding-system-get org-html-coding-system
	1831	'mime-charset))
	1832	"iso-8859-1")))
	1833	(concat
	1834	(when (plist-get info :time-stamp-file)
	1835	(format-time-string
	1836	(concat "<!-- "
	1837	(plist-get info :html-metadata-timestamp-format)
	1838	" -->\n")))
	1839	(format
	1840	(if (org-html-html5-p info)
	1841	(org-html-close-tag "meta" "charset=\"%s\"" info)
	1842	(org-html-close-tag
	1843	"meta" "http-equiv=\"Content-Type\" content=\"text/html;charset=%s\""
	1844	info))
	1845	charset) "\n"
	1846	(let ((viewport-options
	1847	(cl-remove-if-not (lambda (cell) (org-string-nw-p (cadr cell)))
	1848	(plist-get info :html-viewport))))
	1849	(and viewport-options
	1850	(concat
	1851	(org-html-close-tag
	1852	"meta"
	1853	(format "name=\"viewport\" content=\"%s\""
	1854	(mapconcat
	1855	(lambda (elm) (format "%s=%s" (car elm) (cadr elm)))
	1856	viewport-options ", "))
	1857	info)
	1858	"\n")))
	1859	(format "<title>%s</title>\n" title)
	1860	(org-html-close-tag "meta" "name=\"generator\" content=\"Org mode\"" info)
	1861	"\n"
	1862	(and (org-string-nw-p author)
	1863	(concat
	1864	(org-html-close-tag "meta"
	1865	(format "name=\"author\" content=\"%s\""
	1866	(funcall protect-string author))
	1867	info)
	1868	"\n"))
	1869	(and (org-string-nw-p description)
	1870	(concat
	1871	(org-html-close-tag "meta"
	1872	(format "name=\"description\" content=\"%s\"\n"
	1873	(funcall protect-string description))
	1874	info)
	1875	"\n"))
	1876	(and (org-string-nw-p keywords)
	1877	(concat
	1878	(org-html-close-tag "meta"
	1879	(format "name=\"keywords\" content=\"%s\""
	1880	(funcall protect-string keywords))
	1881	info)
	1882	"\n")))))
	1883
	1884	(defun org-html--build-head (info)
	1885	"Return information for the <head>..</head> of the HTML output.
	1886	INFO is a plist used as a communication channel."
	1887	(org-element-normalize-string
	1888	(concat
	1889	(when (plist-get info :html-head-include-default-style)
	1890	(org-element-normalize-string org-html-style-default))
	1891	(org-element-normalize-string (plist-get info :html-head))
	1892	(org-element-normalize-string (plist-get info :html-head-extra))
	1893	(when (and (plist-get info :html-htmlized-css-url)
	1894	(eq org-html-htmlize-output-type 'css))
	1895	(org-html-close-tag "link"
	1896	(format "rel=\"stylesheet\" href=\"%s\" type=\"text/css\""
	1897	(plist-get info :html-htmlized-css-url))
	1898	info))
	1899	(when (plist-get info :html-head-include-scripts) org-html-scripts))))
	1900
	1901	(defun org-html--build-mathjax-config (info)
	1902	"Insert the user setup into the mathjax template.
	1903	INFO is a plist used as a communication channel."
	1904	(when (and (memq (plist-get info :with-latex) '(mathjax t))
	1905	(org-element-map (plist-get info :parse-tree)
	1906	'(latex-fragment latex-environment) #'identity info t nil t))
	1907	(let ((template (plist-get info :html-mathjax-template))
	1908	(options (plist-get info :html-mathjax-options))
	1909	(in-buffer (or (plist-get info :html-mathjax) "")))
	1910	(dolist (e options (org-element-normalize-string template))
	1911	(let ((name (car e))
	1912	(val (nth 1 e)))
	1913	(when (string-match (concat "\\<" (symbol-name name) ":") in-buffer)
	1914	(setq val
	1915	(car (read-from-string (substring in-buffer (match-end 0))))))
	1916	(unless (stringp val) (setq val (format "%s" val)))
	1917	(while (string-match (concat "%" (upcase (symbol-name name)))
	1918	template)
	1919	(setq template (replace-match val t t template))))))))
	1920
	1921	(defun org-html-format-spec (info)
	1922	"Return format specification for preamble and postamble.
	1923	INFO is a plist used as a communication channel."
	1924	(let ((timestamp-format (plist-get info :html-metadata-timestamp-format)))
	1925	`((?t . ,(org-export-data (plist-get info :title) info))
	1926	(?s . ,(org-export-data (plist-get info :subtitle) info))
	1927	(?d . ,(org-export-data (org-export-get-date info timestamp-format)
	1928	info))
	1929	(?T . ,(format-time-string timestamp-format))
	1930	(?a . ,(org-export-data (plist-get info :author) info))
	1931	(?e . ,(mapconcat
	1932	(lambda (e) (format "<a href=\"mailto:%s\">%s</a>" e e))
	1933	(split-string (plist-get info :email) ",+ *")
	1934	", "))
	1935	(?c . ,(plist-get info :creator))
	1936	(?C . ,(let ((file (plist-get info :input-file)))
	1937	(format-time-string timestamp-format
	1938	(and file (nth 5 (file-attributes file))))))
	1939	(?v . ,(or (plist-get info :html-validation-link) "")))))
	1940
	1941	(defun org-html--build-pre/postamble (type info)
	1942	"Return document preamble or postamble as a string, or nil.
	1943	TYPE is either `preamble' or `postamble', INFO is a plist used as a
	1944	communication channel."
	1945	(let ((section (plist-get info (intern (format ":html-%s" type))))
	1946	(spec (org-html-format-spec info)))
	1947	(when section
	1948	(let ((section-contents
	1949	(if (functionp section) (funcall section info)
	1950	(cond
	1951	((stringp section) (format-spec section spec))
	1952	((eq section 'auto)
	1953	(let ((date (cdr (assq ?d spec)))
	1954	(author (cdr (assq ?a spec)))
	1955	(email (cdr (assq ?e spec)))
	1956	(creator (cdr (assq ?c spec)))
	1957	(validation-link (cdr (assq ?v spec))))
	1958	(concat
	1959	(when (and (plist-get info :with-date)
	1960	(org-string-nw-p date))
	1961	(format "<p class=\"date\">%s: %s</p>\n"
	1962	(org-html--translate "Date" info)
	1963	date))
	1964	(when (and (plist-get info :with-author)
	1965	(org-string-nw-p author))
	1966	(format "<p class=\"author\">%s: %s</p>\n"
	1967	(org-html--translate "Author" info)
	1968	author))
	1969	(when (and (plist-get info :with-email)
	1970	(org-string-nw-p email))
	1971	(format "<p class=\"email\">%s: %s</p>\n"
	1972	(org-html--translate "Email" info)
	1973	email))
	1974	(when (plist-get info :time-stamp-file)
	1975	(format
	1976	"<p class=\"date\">%s: %s</p>\n"
	1977	(org-html--translate "Created" info)
	1978	(format-time-string
	1979	(plist-get info :html-metadata-timestamp-format))))
	1980	(when (plist-get info :with-creator)
	1981	(format "<p class=\"creator\">%s</p>\n" creator))
	1982	(format "<p class=\"validation\">%s</p>\n"
	1983	validation-link))))
	1984	(t
	1985	(let ((formats (plist-get info (if (eq type 'preamble)
	1986	:html-preamble-format
	1987	:html-postamble-format)))
	1988	(language (plist-get info :language)))
	1989	(format-spec
	1990	(cadr (or (assoc-string language formats t)
	1991	(assoc-string "en" formats t)))
	1992	spec)))))))
	1993	(let ((div (assq type (plist-get info :html-divs))))
	1994	(when (org-string-nw-p section-contents)
	1995	(concat
	1996	(format "<%s id=\"%s\" class=\"%s\">\n"
	1997	(nth 1 div)
	1998	(nth 2 div)
	1999	org-html--pre/postamble-class)
	2000	(org-element-normalize-string section-contents)
	2001	(format "</%s>\n" (nth 1 div)))))))))
	2002
	2003	(defun org-html-inner-template (contents info)
	2004	"Return body of document string after HTML conversion.
	2005	CONTENTS is the transcoded contents string. INFO is a plist
	2006	holding export options."
	2007	(concat
	2008	;; Table of contents.
	2009	(let ((depth (plist-get info :with-toc)))
	2010	(when depth (org-html-toc depth info)))
	2011	;; Document contents.
	2012	contents
	2013	;; Footnotes section.
	2014	(org-html-footnote-section info)))
	2015
	2016	(defun org-html-template (contents info)
	2017	"Return complete document string after HTML conversion.
	2018	CONTENTS is the transcoded contents string. INFO is a plist
	2019	holding export options."
	2020	(concat
	2021	(when (and (not (org-html-html5-p info)) (org-html-xhtml-p info))
	2022	(let* ((xml-declaration (plist-get info :html-xml-declaration))
	2023	(decl (or (and (stringp xml-declaration) xml-declaration)
	2024	(cdr (assoc (plist-get info :html-extension)
	2025	xml-declaration))
	2026	(cdr (assoc "html" xml-declaration))
	2027	"")))
	2028	(when (not (or (not decl) (string= "" decl)))
	2029	(format "%s\n"
	2030	(format decl
	2031	(or (and org-html-coding-system
	2032	(fboundp 'coding-system-get)
	2033	(coding-system-get org-html-coding-system 'mime-charset))
	2034	"iso-8859-1"))))))
	2035	(org-html-doctype info)
	2036	"\n"
	2037	(concat "<html"
	2038	(cond ((org-html-xhtml-p info)
	2039	(format
	2040	" xmlns=\"http://www.w3.org/1999/xhtml\" lang=\"%s\" xml:lang=\"%s\""
	2041	(plist-get info :language) (plist-get info :language)))
	2042	((org-html-html5-p info)
	2043	(format " lang=\"%s\"" (plist-get info :language))))
	2044	">\n")
	2045	"<head>\n"
	2046	(org-html--build-meta-info info)
	2047	(org-html--build-head info)
	2048	(org-html--build-mathjax-config info)
	2049	"</head>\n"
	2050	"<body>\n"
	2051	(let ((link-up (org-trim (plist-get info :html-link-up)))
	2052	(link-home (org-trim (plist-get info :html-link-home))))
	2053	(unless (and (string= link-up "") (string= link-home ""))
	2054	(format (plist-get info :html-home/up-format)
	2055	(or link-up link-home)
	2056	(or link-home link-up))))
	2057	;; Preamble.
	2058	(org-html--build-pre/postamble 'preamble info)
	2059	;; Document contents.
	2060	(let ((div (assq 'content (plist-get info :html-divs))))
	2061	(format "<%s id=\"%s\">\n" (nth 1 div) (nth 2 div)))
	2062	;; Document title.
	2063	(when (plist-get info :with-title)
	2064	(let ((title (and (plist-get info :with-title)
	2065	(plist-get info :title)))
	2066	(subtitle (plist-get info :subtitle))
	2067	(html5-fancy (org-html--html5-fancy-p info)))
	2068	(when title
	2069	(format
	2070	(if html5-fancy
	2071	"<header>\n<h1 class=\"title\">%s</h1>\n%s</header>"
	2072	"<h1 class=\"title\">%s%s</h1>\n")
	2073	(org-export-data title info)
	2074	(if subtitle
	2075	(format
	2076	(if html5-fancy
	2077	"<p class=\"subtitle\">%s</p>\n"
	2078	(concat "\n" (org-html-close-tag "br" nil info) "\n"
	2079	"<span class=\"subtitle\">%s</span>\n"))
	2080	(org-export-data subtitle info))
	2081	"")))))
	2082	contents
	2083	(format "</%s>\n" (nth 1 (assq 'content (plist-get info :html-divs))))
	2084	;; Postamble.
	2085	(org-html--build-pre/postamble 'postamble info)
	2086	;; Possibly use the Klipse library live code blocks.
	2087	(if (plist-get info :html-klipsify-src)
	2088	(concat "<script>" (plist-get info :html-klipse-selection-script)
	2089	"</script><script src=\""
	2090	org-html-klipse-js
	2091	"\"></script><link rel=\"stylesheet\" type=\"text/css\" href=\""
	2092	org-html-klipse-css "\"/>"))
	2093	;; Closing document.
	2094	"</body>\n</html>"))
	2095
	2096	(defun org-html--translate (s info)
	2097	"Translate string S according to specified language.
	2098	INFO is a plist used as a communication channel."
	2099	(org-export-translate s :html info))
	2100
	2101	;;;; Anchor
	2102
	2103	(defun org-html--anchor (id desc attributes info)
	2104	"Format a HTML anchor."
	2105	(let* ((name (and (plist-get info :html-allow-name-attribute-in-anchors) id))
	2106	(attributes (concat (and id (format " id=\"%s\"" id))
	2107	(and name (format " name=\"%s\"" name))
	2108	attributes)))
	2109	(format "<a%s>%s</a>" attributes (or desc ""))))
	2110
	2111	;;;; Todo
	2112
	2113	(defun org-html--todo (todo info)
	2114	"Format TODO keywords into HTML."
	2115	(when todo
	2116	(format "<span class=\"%s %s%s\">%s</span>"
	2117	(if (member todo org-done-keywords) "done" "todo")
	2118	(or (plist-get info :html-todo-kwd-class-prefix) "")
	2119	(org-html-fix-class-name todo)
	2120	todo)))
	2121
	2122	;;;; Priority
	2123
	2124	(defun org-html--priority (priority _info)
	2125	"Format a priority into HTML.
	2126	PRIORITY is the character code of the priority or nil. INFO is
	2127	a plist containing export options."
	2128	(and priority (format "<span class=\"priority\">[%c]</span>" priority)))
	2129
	2130	;;;; Tags
	2131
	2132	(defun org-html--tags (tags info)
	2133	"Format TAGS into HTML.
	2134	INFO is a plist containing export options."
	2135	(when tags
	2136	(format "<span class=\"tag\">%s</span>"
	2137	(mapconcat
	2138	(lambda (tag)
	2139	(format "<span class=\"%s\">%s</span>"
	2140	(concat (plist-get info :html-tag-class-prefix)
	2141	(org-html-fix-class-name tag))
	2142	tag))
	2143	tags " "))))
	2144
	2145	;;;; Src Code
	2146
	2147	(defun org-html-fontify-code (code lang)
	2148	"Color CODE with htmlize library.
	2149	CODE is a string representing the source code to colorize. LANG
	2150	is the language used for CODE, as a string, or nil."
	2151	(when code
	2152	(cond
	2153	;; No language. Possibly an example block.
	2154	((not lang) (org-html-encode-plain-text code))
	2155	;; Plain text explicitly set.
	2156	((not org-html-htmlize-output-type) (org-html-encode-plain-text code))
	2157	;; No htmlize library or an inferior version of htmlize.
	2158	((not (and (or (require 'htmlize nil t)
	2159	(error "Please install htmlize from \
	2160	https://github.com/hniksic/emacs-htmlize"))
	2161	(fboundp 'htmlize-region-for-paste)))
	2162	;; Emit a warning.
	2163	(message "Cannot fontify src block (htmlize.el >= 1.34 required)")
	2164	(org-html-encode-plain-text code))
	2165	(t
	2166	;; Map language
	2167	(setq lang (or (assoc-default lang org-src-lang-modes) lang))
	2168	(let* ((lang-mode (and lang (intern (format "%s-mode" lang)))))
	2169	(cond
	2170	;; Case 1: Language is not associated with any Emacs mode
	2171	((not (functionp lang-mode))
	2172	(org-html-encode-plain-text code))
	2173	;; Case 2: Default. Fontify code.
	2174	(t
	2175	;; htmlize
	2176	(setq code
	2177	(let ((output-type org-html-htmlize-output-type)
	2178	(font-prefix org-html-htmlize-font-prefix))
	2179	(with-temp-buffer
	2180	;; Switch to language-specific mode.
	2181	(funcall lang-mode)
	2182	(insert code)
	2183	;; Fontify buffer.
	2184	(org-font-lock-ensure)
	2185	;; Remove formatting on newline characters.
	2186	(save-excursion
	2187	(let ((beg (point-min))
	2188	(end (point-max)))
	2189	(goto-char beg)
	2190	(while (progn (end-of-line) (< (point) end))
	2191	(put-text-property (point) (1+ (point)) 'face nil)
	2192	(forward-char 1))))
	2193	(org-src-mode)
	2194	(set-buffer-modified-p nil)
	2195	;; Htmlize region.
	2196	(let ((org-html-htmlize-output-type output-type)
	2197	(org-html-htmlize-font-prefix font-prefix))
	2198	(org-html-htmlize-region-for-paste
	2199	(point-min) (point-max))))))
	2200	;; Strip any enclosing <pre></pre> tags.
	2201	(let* ((beg (and (string-match "\\`<pre[^>]*>\n?" code) (match-end 0)))
	2202	(end (and beg (string-match "</pre>\\'" code))))
	2203	(if (and beg end) (substring code beg end) code)))))))))
	2204
	2205	(defun org-html-do-format-code
	2206	(code &optional lang refs retain-labels num-start)
	2207	"Format CODE string as source code.
	2208	Optional arguments LANG, REFS, RETAIN-LABELS and NUM-START are,
	2209	respectively, the language of the source code, as a string, an
	2210	alist between line numbers and references (as returned by
	2211	`org-export-unravel-code'), a boolean specifying if labels should
	2212	appear in the source code, and the number associated to the first
	2213	line of code."
	2214	(let* ((code-lines (split-string code "\n"))
	2215	(code-length (length code-lines))
	2216	(num-fmt
	2217	(and num-start
	2218	(format "%%%ds: "
	2219	(length (number-to-string (+ code-length num-start))))))
	2220	(code (org-html-fontify-code code lang)))
	2221	(org-export-format-code
	2222	code
	2223	(lambda (loc line-num ref)
	2224	(setq loc
	2225	(concat
	2226	;; Add line number, if needed.
	2227	(when num-start
	2228	(format "<span class=\"linenr\">%s</span>"
	2229	(format num-fmt line-num)))
	2230	;; Transcoded src line.
	2231	loc
	2232	;; Add label, if needed.
	2233	(when (and ref retain-labels) (format " (%s)" ref))))
	2234	;; Mark transcoded line as an anchor, if needed.
	2235	(if (not ref) loc
	2236	(format "<span id=\"coderef-%s\" class=\"coderef-off\">%s</span>"
	2237	ref loc)))
	2238	num-start refs)))
	2239
	2240	(defun org-html-format-code (element info)
	2241	"Format contents of ELEMENT as source code.
	2242	ELEMENT is either an example block or a src block. INFO is
	2243	a plist used as a communication channel."
	2244	(let* ((lang (org-element-property :language element))
	2245	;; Extract code and references.
	2246	(code-info (org-export-unravel-code element))
	2247	(code (car code-info))
	2248	(refs (cdr code-info))
	2249	;; Does the src block contain labels?
	2250	(retain-labels (org-element-property :retain-labels element))
	2251	;; Does it have line numbers?
	2252	(num-start (org-export-get-loc element info)))
	2253	(org-html-do-format-code code lang refs retain-labels num-start)))
	2254
	2255
	2256	;;; Tables of Contents
	2257
	2258	(defun org-html-toc (depth info &optional scope)
	2259	"Build a table of contents.
	2260	DEPTH is an integer specifying the depth of the table. INFO is
	2261	a plist used as a communication channel. Optional argument SCOPE
	2262	is an element defining the scope of the table. Return the table
	2263	of contents as a string, or nil if it is empty."
	2264	(let ((toc-entries
	2265	(mapcar (lambda (headline)
	2266	(cons (org-html--format-toc-headline headline info)
	2267	(org-export-get-relative-level headline info)))
	2268	(org-export-collect-headlines info depth scope))))
	2269	(when toc-entries
	2270	(let ((toc (concat "<div id=\"text-table-of-contents\">"
	2271	(org-html--toc-text toc-entries)
	2272	"</div>\n")))
	2273	(if scope toc
	2274	(let ((outer-tag (if (org-html--html5-fancy-p info)
	2275	"nav"
	2276	"div")))
	2277	(concat (format "<%s id=\"table-of-contents\">\n" outer-tag)
	2278	(let ((top-level (plist-get info :html-toplevel-hlevel)))
	2279	(format "<h%d>%s</h%d>\n"
	2280	top-level
	2281	(org-html--translate "Table of Contents" info)
	2282	top-level))
	2283	toc
	2284	(format "</%s>\n" outer-tag))))))))
	2285
	2286	(defun org-html--toc-text (toc-entries)
	2287	"Return innards of a table of contents, as a string.
	2288	TOC-ENTRIES is an alist where key is an entry title, as a string,
	2289	and value is its relative level, as an integer."
	2290	(let* ((prev-level (1- (cdar toc-entries)))
	2291	(start-level prev-level))
	2292	(concat
	2293	(mapconcat
	2294	(lambda (entry)
	2295	(let ((headline (car entry))
	2296	(level (cdr entry)))
	2297	(concat
	2298	(let* ((cnt (- level prev-level))
	2299	(times (if (> cnt 0) (1- cnt) (- cnt))))
	2300	(setq prev-level level)
	2301	(concat
	2302	(org-html--make-string
	2303	times (cond ((> cnt 0) "\n<ul>\n<li>")
	2304	((< cnt 0) "</li>\n</ul>\n")))
	2305	(if (> cnt 0) "\n<ul>\n<li>" "</li>\n<li>")))
	2306	headline)))
	2307	toc-entries "")
	2308	(org-html--make-string (- prev-level start-level) "</li>\n</ul>\n"))))
	2309
	2310	(defun org-html--format-toc-headline (headline info)
	2311	"Return an appropriate table of contents entry for HEADLINE.
	2312	INFO is a plist used as a communication channel."
	2313	(let* ((headline-number (org-export-get-headline-number headline info))
	2314	(todo (and (plist-get info :with-todo-keywords)
	2315	(let ((todo (org-element-property :todo-keyword headline)))
	2316	(and todo (org-export-data todo info)))))
	2317	(todo-type (and todo (org-element-property :todo-type headline)))
	2318	(priority (and (plist-get info :with-priority)
	2319	(org-element-property :priority headline)))
	2320	(text (org-export-data-with-backend
	2321	(org-export-get-alt-title headline info)
	2322	(org-export-toc-entry-backend 'html)
	2323	info))
	2324	(tags (and (eq (plist-get info :with-tags) t)
	2325	(org-export-get-tags headline info))))
	2326	(format "<a href=\"#%s\">%s</a>"
	2327	;; Label.
	2328	(or (org-element-property :CUSTOM_ID headline)
	2329	(org-export-get-reference headline info))
	2330	;; Body.
	2331	(concat
	2332	(and (not (org-export-low-level-p headline info))
	2333	(org-export-numbered-headline-p headline info)
	2334	(concat (mapconcat #'number-to-string headline-number ".")
	2335	". "))
	2336	(apply (plist-get info :html-format-headline-function)
	2337	todo todo-type priority text tags :section-number nil)))))
	2338
	2339	(defun org-html-list-of-listings (info)
	2340	"Build a list of listings.
	2341	INFO is a plist used as a communication channel. Return the list
	2342	of listings as a string, or nil if it is empty."
	2343	(let ((lol-entries (org-export-collect-listings info)))
	2344	(when lol-entries
	2345	(concat "<div id=\"list-of-listings\">\n"
	2346	(let ((top-level (plist-get info :html-toplevel-hlevel)))
	2347	(format "<h%d>%s</h%d>\n"
	2348	top-level
	2349	(org-html--translate "List of Listings" info)
	2350	top-level))
	2351	"<div id=\"text-list-of-listings\">\n<ul>\n"
	2352	(let ((count 0)
	2353	(initial-fmt (format "<span class=\"listing-number\">%s</span>"
	2354	(org-html--translate "Listing %d:" info))))
	2355	(mapconcat
	2356	(lambda (entry)
	2357	(let ((label (and (org-element-property :name entry)
	2358	(org-export-get-reference entry info)))
	2359	(title (org-trim
	2360	(org-export-data
	2361	(or (org-export-get-caption entry t)
	2362	(org-export-get-caption entry))
	2363	info))))
	2364	(concat
	2365	"<li>"
	2366	(if (not label)
	2367	(concat (format initial-fmt (cl-incf count))
	2368	" "
	2369	title)
	2370	(format "<a href=\"#%s\">%s %s</a>"
	2371	label
	2372	(format initial-fmt (cl-incf count))
	2373	title))
	2374	"</li>")))
	2375	lol-entries "\n"))
	2376	"\n</ul>\n</div>\n</div>"))))
	2377
	2378	(defun org-html-list-of-tables (info)
	2379	"Build a list of tables.
	2380	INFO is a plist used as a communication channel. Return the list
	2381	of tables as a string, or nil if it is empty."
	2382	(let ((lol-entries (org-export-collect-tables info)))
	2383	(when lol-entries
	2384	(concat "<div id=\"list-of-tables\">\n"
	2385	(let ((top-level (plist-get info :html-toplevel-hlevel)))
	2386	(format "<h%d>%s</h%d>\n"
	2387	top-level
	2388	(org-html--translate "List of Tables" info)
	2389	top-level))
	2390	"<div id=\"text-list-of-tables\">\n<ul>\n"
	2391	(let ((count 0)
	2392	(initial-fmt (format "<span class=\"table-number\">%s</span>"
	2393	(org-html--translate "Table %d:" info))))
	2394	(mapconcat
	2395	(lambda (entry)
	2396	(let ((label (and (org-element-property :name entry)
	2397	(org-export-get-reference entry info)))
	2398	(title (org-trim
	2399	(org-export-data
	2400	(or (org-export-get-caption entry t)
	2401	(org-export-get-caption entry))
	2402	info))))
	2403	(concat
	2404	"<li>"
	2405	(if (not label)
	2406	(concat (format initial-fmt (cl-incf count))
	2407	" "
	2408	title)
	2409	(format "<a href=\"#%s\">%s %s</a>"
	2410	label
	2411	(format initial-fmt (cl-incf count))
	2412	title))
	2413	"</li>")))
	2414	lol-entries "\n"))
	2415	"\n</ul>\n</div>\n</div>"))))
	2416
	2417
	2418	;;; Transcode Functions
	2419
	2420	;;;; Bold
	2421
	2422	(defun org-html-bold (_bold contents info)
	2423	"Transcode BOLD from Org to HTML.
	2424	CONTENTS is the text with bold markup. INFO is a plist holding
	2425	contextual information."
	2426	(format (or (cdr (assq 'bold (plist-get info :html-text-markup-alist))) "%s")
	2427	contents))
	2428
	2429	;;;; Center Block
	2430
	2431	(defun org-html-center-block (_center-block contents _info)
	2432	"Transcode a CENTER-BLOCK element from Org to HTML.
	2433	CONTENTS holds the contents of the block. INFO is a plist
	2434	holding contextual information."
	2435	(format "<div class=\"org-center\">\n%s</div>" contents))
	2436
	2437	;;;; Clock
	2438
	2439	(defun org-html-clock (clock _contents _info)
	2440	"Transcode a CLOCK element from Org to HTML.
	2441	CONTENTS is nil. INFO is a plist used as a communication
	2442	channel."
	2443	(format "<p>
	2444	<span class=\"timestamp-wrapper\">
	2445	<span class=\"timestamp-kwd\">%s</span> <span class=\"timestamp\">%s</span>%s
	2446	</span>
	2447	</p>"
	2448	org-clock-string
	2449	(org-timestamp-translate (org-element-property :value clock))
	2450	(let ((time (org-element-property :duration clock)))
	2451	(and time (format " <span class=\"timestamp\">(%s)</span>" time)))))
	2452
	2453	;;;; Code
	2454
	2455	(defun org-html-code (code _contents info)
	2456	"Transcode CODE from Org to HTML.
	2457	CONTENTS is nil. INFO is a plist holding contextual
	2458	information."
	2459	(format (or (cdr (assq 'code (plist-get info :html-text-markup-alist))) "%s")
	2460	(org-html-encode-plain-text (org-element-property :value code))))
	2461
	2462	;;;; Drawer
	2463
	2464	(defun org-html-drawer (drawer contents info)
	2465	"Transcode a DRAWER element from Org to HTML.
	2466	CONTENTS holds the contents of the block. INFO is a plist
	2467	holding contextual information."
	2468	(funcall (plist-get info :html-format-drawer-function)
	2469	(org-element-property :drawer-name drawer)
	2470	contents))
	2471
	2472	;;;; Dynamic Block
	2473
	2474	(defun org-html-dynamic-block (_dynamic-block contents _info)
	2475	"Transcode a DYNAMIC-BLOCK element from Org to HTML.
	2476	CONTENTS holds the contents of the block. INFO is a plist
	2477	holding contextual information. See `org-export-data'."
	2478	contents)
	2479
	2480	;;;; Entity
	2481
	2482	(defun org-html-entity (entity _contents _info)
	2483	"Transcode an ENTITY object from Org to HTML.
	2484	CONTENTS are the definition itself. INFO is a plist holding
	2485	contextual information."
	2486	(org-element-property :html entity))
	2487
	2488	;;;; Example Block
	2489
	2490	(defun org-html-example-block (example-block _contents info)
	2491	"Transcode a EXAMPLE-BLOCK element from Org to HTML.
	2492	CONTENTS is nil. INFO is a plist holding contextual
	2493	information."
	2494	(let ((attributes (org-export-read-attribute :attr_html example-block)))
	2495	(if (plist-get attributes :textarea)
	2496	(org-html--textarea-block example-block)
	2497	(format "<pre class=\"example\"%s>\n%s</pre>"
	2498	(let* ((name (org-element-property :name example-block))
	2499	(a (org-html--make-attribute-string
	2500	(if (or (not name) (plist-member attributes :id))
	2501	attributes
	2502	(plist-put attributes :id name)))))
	2503	(if (org-string-nw-p a) (concat " " a) ""))
	2504	(org-html-format-code example-block info)))))
	2505
	2506	;;;; Export Snippet
	2507
	2508	(defun org-html-export-snippet (export-snippet _contents _info)
	2509	"Transcode a EXPORT-SNIPPET object from Org to HTML.
	2510	CONTENTS is nil. INFO is a plist holding contextual
	2511	information."
	2512	(when (eq (org-export-snippet-backend export-snippet) 'html)
	2513	(org-element-property :value export-snippet)))
	2514
	2515	;;;; Export Block
	2516
	2517	(defun org-html-export-block (export-block _contents _info)
	2518	"Transcode a EXPORT-BLOCK element from Org to HTML.
	2519	CONTENTS is nil. INFO is a plist holding contextual information."
	2520	(when (string= (org-element-property :type export-block) "HTML")
	2521	(org-remove-indentation (org-element-property :value export-block))))
	2522
	2523	;;;; Fixed Width
	2524
	2525	(defun org-html-fixed-width (fixed-width _contents _info)
	2526	"Transcode a FIXED-WIDTH element from Org to HTML.
	2527	CONTENTS is nil. INFO is a plist holding contextual information."
	2528	(format "<pre class=\"example\">\n%s</pre>"
	2529	(org-html-do-format-code
	2530	(org-remove-indentation
	2531	(org-element-property :value fixed-width)))))
	2532
	2533	;;;; Footnote Reference
	2534
	2535	(defun org-html-footnote-reference (footnote-reference _contents info)
	2536	"Transcode a FOOTNOTE-REFERENCE element from Org to HTML.
	2537	CONTENTS is nil. INFO is a plist holding contextual information."
	2538	(concat
	2539	;; Insert separator between two footnotes in a row.
	2540	(let ((prev (org-export-get-previous-element footnote-reference info)))
	2541	(when (eq (org-element-type prev) 'footnote-reference)
	2542	(plist-get info :html-footnote-separator)))
	2543	(let* ((n (org-export-get-footnote-number footnote-reference info))
	2544	(id (format "fnr.%d%s"
	2545	n
	2546	(if (org-export-footnote-first-reference-p
	2547	footnote-reference info)
	2548	""
	2549	".100"))))
	2550	(format
	2551	(plist-get info :html-footnote-format)
	2552	(org-html--anchor
	2553	id n (format " class=\"footref\" href=\"#fn.%d\"" n) info)))))
	2554
	2555	;;;; Headline
	2556
	2557	(defun org-html-headline (headline contents info)
	2558	"Transcode a HEADLINE element from Org to HTML.
	2559	CONTENTS holds the contents of the headline. INFO is a plist
	2560	holding contextual information."
	2561	(unless (org-element-property :footnote-section-p headline)
	2562	(let* ((numberedp (org-export-numbered-headline-p headline info))
	2563	(numbers (org-export-get-headline-number headline info))
	2564	(level (+ (org-export-get-relative-level headline info)
	2565	(1- (plist-get info :html-toplevel-hlevel))))
	2566	(todo (and (plist-get info :with-todo-keywords)
	2567	(let ((todo (org-element-property :todo-keyword headline)))
	2568	(and todo (org-export-data todo info)))))
	2569	(todo-type (and todo (org-element-property :todo-type headline)))
	2570	(priority (and (plist-get info :with-priority)
	2571	(org-element-property :priority headline)))
	2572	(text (org-export-data (org-element-property :title headline) info))
	2573	(tags (and (plist-get info :with-tags)
	2574	(org-export-get-tags headline info)))
	2575	(full-text (funcall (plist-get info :html-format-headline-function)
	2576	todo todo-type priority text tags info))
	2577	(contents (or contents ""))
	2578	(ids (delq nil
	2579	(list (org-element-property :CUSTOM_ID headline)
	2580	(org-export-get-reference headline info)
	2581	(org-element-property :ID headline))))
	2582	(preferred-id (car ids))
	2583	(extra-ids
	2584	(mapconcat
	2585	(lambda (id)
	2586	(org-html--anchor
	2587	(if (org-uuidgen-p id) (concat "ID-" id) id)
	2588	nil nil info))
	2589	(cdr ids) "")))
	2590	(if (org-export-low-level-p headline info)
	2591	;; This is a deep sub-tree: export it as a list item.
	2592	(let* ((html-type (if numberedp "ol" "ul")))
	2593	(concat
	2594	(and (org-export-first-sibling-p headline info)
	2595	(apply #'format "<%s class=\"org-%s\">\n"
	2596	(make-list 2 html-type)))
	2597	(org-html-format-list-item
	2598	contents (if numberedp 'ordered 'unordered)
	2599	nil info nil
	2600	(concat (org-html--anchor preferred-id nil nil info)
	2601	extra-ids
	2602	full-text)) "\n"
	2603	(and (org-export-last-sibling-p headline info)
	2604	(format "</%s>\n" html-type))))
	2605	;; Standard headline. Export it as a section.
	2606	(let ((extra-class (org-element-property :HTML_CONTAINER_CLASS headline))
	2607	(first-content (car (org-element-contents headline))))
	2608	(format "<%s id=\"%s\" class=\"%s\">%s%s</%s>\n"
	2609	(org-html--container headline info)
	2610	(concat "outline-container-"
	2611	(org-export-get-reference headline info))
	2612	(concat (format "outline-%d" level)
	2613	(and extra-class " ")
	2614	extra-class)
	2615	(format "\n<h%d id=\"%s\">%s%s</h%d>\n"
	2616	level
	2617	preferred-id
	2618	extra-ids
	2619	(concat
	2620	(and numberedp
	2621	(format
	2622	"<span class=\"section-number-%d\">%s</span> "
	2623	level
	2624	(mapconcat #'number-to-string numbers ".")))
	2625	full-text)
	2626	level)
	2627	;; When there is no section, pretend there is an
	2628	;; empty one to get the correct <div
	2629	;; class="outline-...> which is needed by
	2630	;; `org-info.js'.
	2631	(if (eq (org-element-type first-content) 'section) contents
	2632	(concat (org-html-section first-content "" info) contents))
	2633	(org-html--container headline info)))))))
	2634
	2635	(defun org-html-format-headline-default-function
	2636	(todo _todo-type priority text tags info)
	2637	"Default format function for a headline.
	2638	See `org-html-format-headline-function' for details."
	2639	(let ((todo (org-html--todo todo info))
	2640	(priority (org-html--priority priority info))
	2641	(tags (org-html--tags tags info)))
	2642	(concat todo (and todo " ")
	2643	priority (and priority " ")
	2644	text
	2645	(and tags "   ") tags)))
	2646
	2647	(defun org-html--container (headline info)
	2648	(or (org-element-property :HTML_CONTAINER headline)
	2649	(if (= 1 (org-export-get-relative-level headline info))
	2650	(plist-get info :html-container)
	2651	"div")))
	2652
	2653	;;;; Horizontal Rule
	2654
	2655	(defun org-html-horizontal-rule (_horizontal-rule _contents info)
	2656	"Transcode an HORIZONTAL-RULE object from Org to HTML.
	2657	CONTENTS is nil. INFO is a plist holding contextual information."
	2658	(org-html-close-tag "hr" nil info))
	2659
	2660	;;;; Inline Src Block
	2661
	2662	(defun org-html-inline-src-block (inline-src-block _contents info)
	2663	"Transcode an INLINE-SRC-BLOCK element from Org to HTML.
	2664	CONTENTS holds the contents of the item. INFO is a plist holding
	2665	contextual information."
	2666	(let* ((lang (org-element-property :language inline-src-block))
	2667	(code (org-html-fontify-code
	2668	(org-element-property :value inline-src-block)
	2669	lang))
	2670	(label
	2671	(let ((lbl (and (org-element-property :name inline-src-block)
	2672	(org-export-get-reference inline-src-block info))))
	2673	(if (not lbl) "" (format " id=\"%s\"" lbl)))))
	2674	(format "<code class=\"src src-%s\"%s>%s</code>" lang label code)))
	2675
	2676	;;;; Inlinetask
	2677
	2678	(defun org-html-inlinetask (inlinetask contents info)
	2679	"Transcode an INLINETASK element from Org to HTML.
	2680	CONTENTS holds the contents of the block. INFO is a plist
	2681	holding contextual information."
	2682	(let* ((todo (and (plist-get info :with-todo-keywords)
	2683	(let ((todo (org-element-property :todo-keyword inlinetask)))
	2684	(and todo (org-export-data todo info)))))
	2685	(todo-type (and todo (org-element-property :todo-type inlinetask)))
	2686	(priority (and (plist-get info :with-priority)
	2687	(org-element-property :priority inlinetask)))
	2688	(text (org-export-data (org-element-property :title inlinetask) info))
	2689	(tags (and (plist-get info :with-tags)
	2690	(org-export-get-tags inlinetask info))))
	2691	(funcall (plist-get info :html-format-inlinetask-function)
	2692	todo todo-type priority text tags contents info)))
	2693
	2694	(defun org-html-format-inlinetask-default-function
	2695	(todo todo-type priority text tags contents info)
	2696	"Default format function for inlinetasks.
	2697	See `org-html-format-inlinetask-function' for details."
	2698	(format "<div class=\"inlinetask\">\n<b>%s</b>%s\n%s</div>"
	2699	(org-html-format-headline-default-function
	2700	todo todo-type priority text tags info)
	2701	(org-html-close-tag "br" nil info)
	2702	contents))
	2703
	2704	;;;; Italic
	2705
	2706	(defun org-html-italic (_italic contents info)
	2707	"Transcode ITALIC from Org to HTML.
	2708	CONTENTS is the text with italic markup. INFO is a plist holding
	2709	contextual information."
	2710	(format
	2711	(or (cdr (assq 'italic (plist-get info :html-text-markup-alist))) "%s")
	2712	contents))
	2713
	2714	;;;; Item
	2715
	2716	(defun org-html-checkbox (checkbox info)
	2717	"Format CHECKBOX into HTML.
	2718	INFO is a plist holding contextual information. See
	2719	`org-html-checkbox-type' for customization options."
	2720	(cdr (assq checkbox
	2721	(cdr (assq (plist-get info :html-checkbox-type)
	2722	org-html-checkbox-types)))))
	2723
	2724	(defun org-html-format-list-item (contents type checkbox info
	2725	&optional term-counter-id
	2726	headline)
	2727	"Format a list item into HTML."
	2728	(let ((class (if checkbox
	2729	(format " class=\"%s\""
	2730	(symbol-name checkbox)) ""))
	2731	(checkbox (concat (org-html-checkbox checkbox info)
	2732	(and checkbox " ")))
	2733	(br (org-html-close-tag "br" nil info))
	2734	(extra-newline (if (and (org-string-nw-p contents) headline) "\n" "")))
	2735	(concat
	2736	(pcase type
	2737	(`ordered
	2738	(let* ((counter term-counter-id)
	2739	(extra (if counter (format " value=\"%s\"" counter) "")))
	2740	(concat
	2741	(format "<li%s%s>" class extra)
	2742	(when headline (concat headline br)))))
	2743	(`unordered
	2744	(let* ((id term-counter-id)
	2745	(extra (if id (format " id=\"%s\"" id) "")))
	2746	(concat
	2747	(format "<li%s%s>" class extra)
	2748	(when headline (concat headline br)))))
	2749	(`descriptive
	2750	(let* ((term term-counter-id))
	2751	(setq term (or term "(no term)"))
	2752	;; Check-boxes in descriptive lists are associated to tag.
	2753	(concat (format "<dt%s>%s</dt>"
	2754	class (concat checkbox term))
	2755	"<dd>"))))
	2756	(unless (eq type 'descriptive) checkbox)
	2757	extra-newline
	2758	(and (org-string-nw-p contents) (org-trim contents))
	2759	extra-newline
	2760	(pcase type
	2761	(`ordered "</li>")
	2762	(`unordered "</li>")
	2763	(`descriptive "</dd>")))))
	2764
	2765	(defun org-html-item (item contents info)
	2766	"Transcode an ITEM element from Org to HTML.
	2767	CONTENTS holds the contents of the item. INFO is a plist holding
	2768	contextual information."
	2769	(let* ((plain-list (org-export-get-parent item))
	2770	(type (org-element-property :type plain-list))
	2771	(counter (org-element-property :counter item))
	2772	(checkbox (org-element-property :checkbox item))
	2773	(tag (let ((tag (org-element-property :tag item)))
	2774	(and tag (org-export-data tag info)))))
	2775	(org-html-format-list-item
	2776	contents type checkbox info (or tag counter))))
	2777
	2778	;;;; Keyword
	2779
	2780	(defun org-html-keyword (keyword _contents info)
	2781	"Transcode a KEYWORD element from Org to HTML.
	2782	CONTENTS is nil. INFO is a plist holding contextual information."
	2783	(let ((key (org-element-property :key keyword))
	2784	(value (org-element-property :value keyword)))
	2785	(cond
	2786	((string= key "HTML") value)
	2787	((string= key "TOC")
	2788	(let ((case-fold-search t))
	2789	(cond
	2790	((string-match "\\<headlines\\>" value)
	2791	(let ((depth (and (string-match "\\<[0-9]+\\>" value)
	2792	(string-to-number (match-string 0 value))))
	2793	(localp (string-match-p "\\<local\\>" value)))
	2794	(org-html-toc depth info (and localp keyword))))
	2795	((string= "listings" value) (org-html-list-of-listings info))
	2796	((string= "tables" value) (org-html-list-of-tables info))))))))
	2797
	2798	;;;; Latex Environment
	2799
	2800	(defun org-html-format-latex (latex-frag processing-type info)
	2801	"Format a LaTeX fragment LATEX-FRAG into HTML.
	2802	PROCESSING-TYPE designates the tool used for conversion. It can
	2803	be `mathjax', `verbatim', nil, t or symbols in
	2804	`org-preview-latex-process-alist', e.g., `dvipng', `dvisvgm' or
	2805	`imagemagick'. See `org-html-with-latex' for more information.
	2806	INFO is a plist containing export properties."
	2807	(let ((cache-relpath "") (cache-dir ""))
	2808	(unless (eq processing-type 'mathjax)
	2809	(let ((bfn (or (buffer-file-name)
	2810	(make-temp-name
	2811	(expand-file-name "latex" temporary-file-directory))))
	2812	(latex-header
	2813	(let ((header (plist-get info :latex-header)))
	2814	(and header
	2815	(concat (mapconcat
	2816	(lambda (line) (concat "#+LATEX_HEADER: " line))
	2817	(org-split-string header "\n")
	2818	"\n")
	2819	"\n")))))
	2820	(setq cache-relpath
	2821	(concat (file-name-as-directory org-preview-latex-image-directory)
	2822	(file-name-sans-extension
	2823	(file-name-nondirectory bfn)))
	2824	cache-dir (file-name-directory bfn))
	2825	;; Re-create LaTeX environment from original buffer in
	2826	;; temporary buffer so that dvipng/imagemagick can properly
	2827	;; turn the fragment into an image.
	2828	(setq latex-frag (concat latex-header latex-frag))))
	2829	(with-temp-buffer
	2830	(insert latex-frag)
	2831	(org-format-latex cache-relpath nil nil cache-dir nil
	2832	"Creating LaTeX Image..." nil processing-type)
	2833	(buffer-string))))
	2834
	2835	(defun org-html-latex-environment (latex-environment _contents info)
	2836	"Transcode a LATEX-ENVIRONMENT element from Org to HTML.
	2837	CONTENTS is nil. INFO is a plist holding contextual information."
	2838	(let ((processing-type (plist-get info :with-latex))
	2839	(latex-frag (org-remove-indentation
	2840	(org-element-property :value latex-environment)))
	2841	(attributes (org-export-read-attribute :attr_html latex-environment)))
	2842	(cond
	2843	((memq processing-type '(t mathjax))
	2844	(org-html-format-latex latex-frag 'mathjax info))
	2845	((assq processing-type org-preview-latex-process-alist)
	2846	(let ((formula-link
	2847	(org-html-format-latex latex-frag processing-type info)))
	2848	(when (and formula-link (string-match "file:\\([^]]*\\)" formula-link))
	2849	;; Do not provide a caption or a name to be consistent with
	2850	;; `mathjax' handling.
	2851	(org-html--wrap-image
	2852	(org-html--format-image
	2853	(match-string 1 formula-link) attributes info) info))))
	2854	(t latex-frag))))
	2855
	2856	;;;; Latex Fragment
	2857
	2858	(defun org-html-latex-fragment (latex-fragment _contents info)
	2859	"Transcode a LATEX-FRAGMENT object from Org to HTML.
	2860	CONTENTS is nil. INFO is a plist holding contextual information."
	2861	(let ((latex-frag (org-element-property :value latex-fragment))
	2862	(processing-type (plist-get info :with-latex)))
	2863	(cond
	2864	((memq processing-type '(t mathjax))
	2865	(org-html-format-latex latex-frag 'mathjax info))
	2866	((assq processing-type org-preview-latex-process-alist)
	2867	(let ((formula-link
	2868	(org-html-format-latex latex-frag processing-type info)))
	2869	(when (and formula-link (string-match "file:\\([^]]*\\)" formula-link))
	2870	(org-html--format-image (match-string 1 formula-link) nil info))))
	2871	(t latex-frag))))
	2872
	2873	;;;; Line Break
	2874
	2875	(defun org-html-line-break (_line-break _contents info)
	2876	"Transcode a LINE-BREAK object from Org to HTML.
	2877	CONTENTS is nil. INFO is a plist holding contextual information."
	2878	(concat (org-html-close-tag "br" nil info) "\n"))
	2879
	2880	;;;; Link
	2881
	2882	(defun org-html-image-link-filter (data _backend info)
	2883	(org-export-insert-image-links data info org-html-inline-image-rules))
	2884
	2885	(defun org-html-inline-image-p (link info)
	2886	"Non-nil when LINK is meant to appear as an image.
	2887	INFO is a plist used as a communication channel. LINK is an
	2888	inline image when it has no description and targets an image
	2889	file (see `org-html-inline-image-rules' for more information), or
	2890	if its description is a single link targeting an image file."
	2891	(if (not (org-element-contents link))
	2892	(org-export-inline-image-p
	2893	link (plist-get info :html-inline-image-rules))
	2894	(not
	2895	(let ((link-count 0))
	2896	(org-element-map (org-element-contents link)
	2897	(cons 'plain-text org-element-all-objects)
	2898	(lambda (obj)
	2899	(pcase (org-element-type obj)
	2900	(`plain-text (org-string-nw-p obj))
	2901	(`link (if (= link-count 1) t
	2902	(cl-incf link-count)
	2903	(not (org-export-inline-image-p
	2904	obj (plist-get info :html-inline-image-rules)))))
	2905	(_ t)))
	2906	info t)))))
	2907
	2908	(defvar org-html-standalone-image-predicate)
	2909	(defun org-html-standalone-image-p (element info)
	2910	"Non-nil if ELEMENT is a standalone image.
	2911
	2912	INFO is a plist holding contextual information.
	2913
	2914	An element or object is a standalone image when
	2915
	2916	- its type is `paragraph' and its sole content, save for white
	2917	spaces, is a link that qualifies as an inline image;
	2918
	2919	- its type is `link' and its containing paragraph has no other
	2920	content save white spaces.
	2921
	2922	Bind `org-html-standalone-image-predicate' to constrain paragraph
	2923	further. For example, to check for only captioned standalone
	2924	images, set it to:
	2925
	2926	(lambda (paragraph) (org-element-property :caption paragraph))"
	2927	(let ((paragraph (pcase (org-element-type element)
	2928	(`paragraph element)
	2929	(`link (org-export-get-parent element)))))
	2930	(and (eq (org-element-type paragraph) 'paragraph)
	2931	(or (not (fboundp 'org-html-standalone-image-predicate))
	2932	(funcall org-html-standalone-image-predicate paragraph))
	2933	(catch 'exit
	2934	(let ((link-count 0))
	2935	(org-element-map (org-element-contents paragraph)
	2936	(cons 'plain-text org-element-all-objects)
	2937	(lambda (obj)
	2938	(when (pcase (org-element-type obj)
	2939	(`plain-text (org-string-nw-p obj))
	2940	(`link (or (> (cl-incf link-count) 1)
	2941	(not (org-html-inline-image-p obj info))))
	2942	(_ t))
	2943	(throw 'exit nil)))
	2944	info nil 'link)
	2945	(= link-count 1))))))
	2946
	2947	(defun org-html-link (link desc info)
	2948	"Transcode a LINK object from Org to HTML.
	2949	DESC is the description part of the link, or the empty string.
	2950	INFO is a plist holding contextual information. See
	2951	`org-export-data'."
	2952	(let* ((link-org-files-as-html-maybe
	2953	(lambda (raw-path info)
	2954	;; Treat links to `file.org' as links to `file.html', if
	2955	;; needed. See `org-html-link-org-files-as-html'.
	2956	(cond
	2957	((and (plist-get info :html-link-org-files-as-html)
	2958	(string= ".org"
	2959	(downcase (file-name-extension raw-path "."))))
	2960	(concat (file-name-sans-extension raw-path) "."
	2961	(plist-get info :html-extension)))
	2962	(t raw-path))))
	2963	(type (org-element-property :type link))
	2964	(raw-path (org-element-property :path link))
	2965	;; Ensure DESC really exists, or set it to nil.
	2966	(desc (org-string-nw-p desc))
	2967	(path
	2968	(cond
	2969	((member type '("http" "https" "ftp" "mailto" "news"))
	2970	(url-encode-url (org-link-unescape (concat type ":" raw-path))))
	2971	((string= type "file")
	2972	;; During publishing, turn absolute file names belonging
	2973	;; to base directory into relative file names. Otherwise,
	2974	;; append "file" protocol to absolute file name.
	2975	(setq raw-path
	2976	(org-export-file-uri
	2977	(org-publish-file-relative-name raw-path info)))
	2978	;; Possibly append `:html-link-home' to relative file
	2979	;; name.
	2980	(let ((home (and (plist-get info :html-link-home)
	2981	(org-trim (plist-get info :html-link-home)))))
	2982	(when (and home
	2983	(plist-get info :html-link-use-abs-url)
	2984	(file-name-absolute-p raw-path))
	2985	(setq raw-path (concat (file-name-as-directory home) raw-path))))
	2986	;; Maybe turn ".org" into ".html".
	2987	(setq raw-path (funcall link-org-files-as-html-maybe raw-path info))
	2988	;; Add search option, if any. A search option can be
	2989	;; relative to a custom-id, a headline title, a name or
	2990	;; a target.
	2991	(let ((option (org-element-property :search-option link)))
	2992	(cond ((not option) raw-path)
	2993	;; Since HTML back-end use custom-id value as-is,
	2994	;; resolving is them is trivial.
	2995	((eq (string-to-char option) ?#) (concat raw-path option))
	2996	(t
	2997	(concat raw-path
	2998	"#"
	2999	(org-publish-resolve-external-link
	3000	option
	3001	(org-element-property :path link)))))))
	3002	(t raw-path)))
	3003	;; Extract attributes from parent's paragraph. HACK: Only do
	3004	;; this for the first link in parent (inner image link for
	3005	;; inline images). This is needed as long as attributes
	3006	;; cannot be set on a per link basis.
	3007	(attributes-plist
	3008	(let* ((parent (org-export-get-parent-element link))
	3009	(link (let ((container (org-export-get-parent link)))
	3010	(if (and (eq (org-element-type container) 'link)
	3011	(org-html-inline-image-p link info))
	3012	container
	3013	link))))
	3014	(and (eq (org-element-map parent 'link 'identity info t) link)
	3015	(org-export-read-attribute :attr_html parent))))
	3016	(attributes
	3017	(let ((attr (org-html--make-attribute-string attributes-plist)))
	3018	(if (org-string-nw-p attr) (concat " " attr) ""))))
	3019	(cond
	3020	;; Link type is handled by a special function.
	3021	((org-export-custom-protocol-maybe link desc 'html))
	3022	;; Image file.
	3023	((and (plist-get info :html-inline-images)
	3024	(org-export-inline-image-p
	3025	link (plist-get info :html-inline-image-rules)))
	3026	(org-html--format-image path attributes-plist info))
	3027	;; Radio target: Transcode target's contents and use them as
	3028	;; link's description.
	3029	((string= type "radio")
	3030	(let ((destination (org-export-resolve-radio-link link info)))
	3031	(if (not destination) desc
	3032	(format "<a href=\"#%s\"%s>%s</a>"
	3033	(org-export-get-reference destination info)
	3034	attributes
	3035	desc))))
	3036	;; Links pointing to a headline: Find destination and build
	3037	;; appropriate referencing command.
	3038	((member type '("custom-id" "fuzzy" "id"))
	3039	(let ((destination (if (string= type "fuzzy")
	3040	(org-export-resolve-fuzzy-link link info)
	3041	(org-export-resolve-id-link link info))))
	3042	(pcase (org-element-type destination)
	3043	;; ID link points to an external file.
	3044	(`plain-text
	3045	(let ((fragment (concat "ID-" path))
	3046	;; Treat links to ".org" files as ".html", if needed.
	3047	(path (funcall link-org-files-as-html-maybe
	3048	destination info)))
	3049	(format "<a href=\"%s#%s\"%s>%s</a>"
	3050	path fragment attributes (or desc destination))))
	3051	;; Fuzzy link points nowhere.
	3052	(`nil
	3053	(format "<i>%s</i>"
	3054	(or desc
	3055	(org-export-data
	3056	(org-element-property :raw-link link) info))))
	3057	;; Link points to a headline.
	3058	(`headline
	3059	(let ((href (or (org-element-property :CUSTOM_ID destination)
	3060	(org-export-get-reference destination info)))
	3061	;; What description to use?
	3062	(desc
	3063	;; Case 1: Headline is numbered and LINK has no
	3064	;; description. Display section number.
	3065	(if (and (org-export-numbered-headline-p destination info)
	3066	(not desc))
	3067	(mapconcat #'number-to-string
	3068	(org-export-get-headline-number
	3069	destination info) ".")
	3070	;; Case 2: Either the headline is un-numbered or
	3071	;; LINK has a custom description. Display LINK's
	3072	;; description or headline's title.
	3073	(or desc
	3074	(org-export-data
	3075	(org-element-property :title destination) info)))))
	3076	(format "<a href=\"#%s\"%s>%s</a>" href attributes desc)))
	3077	;; Fuzzy link points to a target or an element.
	3078	(_
	3079	(let* ((ref (org-export-get-reference destination info))
	3080	(org-html-standalone-image-predicate
	3081	#'org-html--has-caption-p)
	3082	(number (cond
	3083	(desc nil)
	3084	((org-html-standalone-image-p destination info)
	3085	(org-export-get-ordinal
	3086	(org-element-map destination 'link
	3087	#'identity info t)
	3088	info 'link 'org-html-standalone-image-p))
	3089	(t (org-export-get-ordinal
	3090	destination info nil 'org-html--has-caption-p))))
	3091	(desc (cond (desc)
	3092	((not number) "No description for this link")
	3093	((numberp number) (number-to-string number))
	3094	(t (mapconcat #'number-to-string number ".")))))
	3095	(format "<a href=\"#%s\"%s>%s</a>" ref attributes desc))))))
	3096	;; Coderef: replace link with the reference name or the
	3097	;; equivalent line number.
	3098	((string= type "coderef")
	3099	(let ((fragment (concat "coderef-" (org-html-encode-plain-text path))))
	3100	(format "<a href=\"#%s\" %s%s>%s</a>"
	3101	fragment
	3102	(format "class=\"coderef\" onmouseover=\"CodeHighlightOn(this, \
	3103	'%s');\" onmouseout=\"CodeHighlightOff(this, '%s');\""
	3104	fragment fragment)
	3105	attributes
	3106	(format (org-export-get-coderef-format path desc)
	3107	(org-export-resolve-coderef path info)))))
	3108	;; External link with a description part.
	3109	((and path desc) (format "<a href=\"%s\"%s>%s</a>"
	3110	(org-html-encode-plain-text path)
	3111	attributes
	3112	desc))
	3113	;; External link without a description part.
	3114	(path (let ((path (org-html-encode-plain-text path)))
	3115	(format "<a href=\"%s\"%s>%s</a>"
	3116	path
	3117	attributes
	3118	(org-link-unescape path))))
	3119	;; No path, only description. Try to do something useful.
	3120	(t (format "<i>%s</i>" desc)))))
	3121
	3122	;;;; Node Property
	3123
	3124	(defun org-html-node-property (node-property _contents _info)
	3125	"Transcode a NODE-PROPERTY element from Org to HTML.
	3126	CONTENTS is nil. INFO is a plist holding contextual
	3127	information."
	3128	(format "%s:%s"
	3129	(org-element-property :key node-property)
	3130	(let ((value (org-element-property :value node-property)))
	3131	(if value (concat " " value) ""))))
	3132
	3133	;;;; Paragraph
	3134
	3135	(defun org-html-paragraph (paragraph contents info)
	3136	"Transcode a PARAGRAPH element from Org to HTML.
	3137	CONTENTS is the contents of the paragraph, as a string. INFO is
	3138	the plist used as a communication channel."
	3139	(let* ((parent (org-export-get-parent paragraph))
	3140	(parent-type (org-element-type parent))
	3141	(style '((footnote-definition " class=\"footpara\"")
	3142	(org-data " class=\"footpara\"")))
	3143	(attributes (org-html--make-attribute-string
	3144	(org-export-read-attribute :attr_html paragraph)))
	3145	(extra (or (cadr (assq parent-type style)) "")))
	3146	(cond
	3147	((and (eq parent-type 'item)
	3148	(not (org-export-get-previous-element paragraph info))
	3149	(let ((followers (org-export-get-next-element paragraph info 2)))
	3150	(and (not (cdr followers))
	3151	(memq (org-element-type (car followers)) '(nil plain-list)))))
	3152	;; First paragraph in an item has no tag if it is alone or
	3153	;; followed, at most, by a sub-list.
	3154	contents)
	3155	((org-html-standalone-image-p paragraph info)
	3156	;; Standalone image.
	3157	(let ((caption
	3158	(let ((raw (org-export-data
	3159	(org-export-get-caption paragraph) info))
	3160	(org-html-standalone-image-predicate
	3161	#'org-html--has-caption-p))
	3162	(if (not (org-string-nw-p raw)) raw
	3163	(concat "<span class=\"figure-number\">"
	3164	(format (org-html--translate "Figure %d:" info)
	3165	(org-export-get-ordinal
	3166	(org-element-map paragraph 'link
	3167	#'identity info t)
	3168	info nil #'org-html-standalone-image-p))
	3169	" </span>"
	3170	raw))))
	3171	(label (and (org-element-property :name paragraph)
	3172	(org-export-get-reference paragraph info))))
	3173	(org-html--wrap-image contents info caption label)))
	3174	;; Regular paragraph.
	3175	(t (format "<p%s%s>\n%s</p>"
	3176	(if (org-string-nw-p attributes)
	3177	(concat " " attributes) "")
	3178	extra contents)))))
	3179
	3180	;;;; Plain List
	3181
	3182	(defun org-html-plain-list (plain-list contents _info)
	3183	"Transcode a PLAIN-LIST element from Org to HTML.
	3184	CONTENTS is the contents of the list. INFO is a plist holding
	3185	contextual information."
	3186	(let* ((type (pcase (org-element-property :type plain-list)
	3187	(`ordered "ol")
	3188	(`unordered "ul")
	3189	(`descriptive "dl")
	3190	(other (error "Unknown HTML list type: %s" other))))
	3191	(class (format "org-%s" type))
	3192	(attributes (org-export-read-attribute :attr_html plain-list)))
	3193	(format "<%s %s>\n%s</%s>"
	3194	type
	3195	(org-html--make-attribute-string
	3196	(plist-put attributes :class
	3197	(org-trim
	3198	(mapconcat #'identity
	3199	(list class (plist-get attributes :class))
	3200	" "))))
	3201	contents
	3202	type)))
	3203
	3204	;;;; Plain Text
	3205
	3206	(defun org-html-convert-special-strings (string)
	3207	"Convert special characters in STRING to HTML."
	3208	(dolist (a org-html-special-string-regexps string)
	3209	(let ((re (car a))
	3210	(rpl (cdr a)))
	3211	(setq string (replace-regexp-in-string re rpl string t)))))
	3212
	3213	(defun org-html-encode-plain-text (text)
	3214	"Convert plain text characters from TEXT to HTML equivalent.
	3215	Possible conversions are set in `org-html-protect-char-alist'."
	3216	(dolist (pair org-html-protect-char-alist text)
	3217	(setq text (replace-regexp-in-string (car pair) (cdr pair) text t t))))
	3218
	3219	(defun org-html-plain-text (text info)
	3220	"Transcode a TEXT string from Org to HTML.
	3221	TEXT is the string to transcode. INFO is a plist holding
	3222	contextual information."
	3223	(let ((output text))
	3224	;; Protect following characters: <, >, &.
	3225	(setq output (org-html-encode-plain-text output))
	3226	;; Handle smart quotes. Be sure to provide original string since
	3227	;; OUTPUT may have been modified.
	3228	(when (plist-get info :with-smart-quotes)
	3229	(setq output (org-export-activate-smart-quotes output :html info text)))
	3230	;; Handle special strings.
	3231	(when (plist-get info :with-special-strings)
	3232	(setq output (org-html-convert-special-strings output)))
	3233	;; Handle break preservation if required.
	3234	(when (plist-get info :preserve-breaks)
	3235	(setq output
	3236	(replace-regexp-in-string
	3237	"\\(\\\\\\\\\\)?[ \t]*\n"
	3238	(concat (org-html-close-tag "br" nil info) "\n") output)))
	3239	;; Return value.
	3240	output))
	3241
	3242
	3243	;; Planning
	3244
	3245	(defun org-html-planning (planning _contents info)
	3246	"Transcode a PLANNING element from Org to HTML.
	3247	CONTENTS is nil. INFO is a plist used as a communication
	3248	channel."
	3249	(format
	3250	"<p><span class=\"timestamp-wrapper\">%s</span></p>"
	3251	(org-trim
	3252	(mapconcat
	3253	(lambda (pair)
	3254	(let ((timestamp (cdr pair)))
	3255	(when timestamp
	3256	(let ((string (car pair)))
	3257	(format "<span class=\"timestamp-kwd\">%s</span> \
	3258	<span class=\"timestamp\">%s</span> "
	3259	string
	3260	(org-html-plain-text (org-timestamp-translate timestamp)
	3261	info))))))
	3262	`((,org-closed-string . ,(org-element-property :closed planning))
	3263	(,org-deadline-string . ,(org-element-property :deadline planning))
	3264	(,org-scheduled-string . ,(org-element-property :scheduled planning)))
	3265	""))))
	3266
	3267	;;;; Property Drawer
	3268
	3269	(defun org-html-property-drawer (_property-drawer contents _info)
	3270	"Transcode a PROPERTY-DRAWER element from Org to HTML.
	3271	CONTENTS holds the contents of the drawer. INFO is a plist
	3272	holding contextual information."
	3273	(and (org-string-nw-p contents)
	3274	(format "<pre class=\"example\">\n%s</pre>" contents)))
	3275
	3276	;;;; Quote Block
	3277
	3278	(defun org-html-quote-block (quote-block contents _info)
	3279	"Transcode a QUOTE-BLOCK element from Org to HTML.
	3280	CONTENTS holds the contents of the block. INFO is a plist
	3281	holding contextual information."
	3282	(format "<blockquote%s>\n%s</blockquote>"
	3283	(let* ((name (org-element-property :name quote-block))
	3284	(attributes (org-export-read-attribute :attr_html quote-block))
	3285	(a (org-html--make-attribute-string
	3286	(if (or (not name) (plist-member attributes :id))
	3287	attributes
	3288	(plist-put attributes :id name)))))
	3289	(if (org-string-nw-p a) (concat " " a) ""))
	3290	contents))
	3291
	3292	;;;; Section
	3293
	3294	(defun org-html-section (section contents info)
	3295	"Transcode a SECTION element from Org to HTML.
	3296	CONTENTS holds the contents of the section. INFO is a plist
	3297	holding contextual information."
	3298	(let ((parent (org-export-get-parent-headline section)))
	3299	;; Before first headline: no container, just return CONTENTS.
	3300	(if (not parent) contents
	3301	;; Get div's class and id references.
	3302	(let* ((class-num (+ (org-export-get-relative-level parent info)
	3303	(1- (plist-get info :html-toplevel-hlevel))))
	3304	(section-number
	3305	(and (org-export-numbered-headline-p parent info)
	3306	(mapconcat
	3307	#'number-to-string
	3308	(org-export-get-headline-number parent info) "-"))))
	3309	;; Build return value.
	3310	(format "<div class=\"outline-text-%d\" id=\"text-%s\">\n%s</div>\n"
	3311	class-num
	3312	(or (org-element-property :CUSTOM_ID parent)
	3313	section-number
	3314	(org-export-get-reference parent info))
	3315	(or contents ""))))))
	3316
	3317	;;;; Radio Target
	3318
	3319	(defun org-html-radio-target (radio-target text info)
	3320	"Transcode a RADIO-TARGET object from Org to HTML.
	3321	TEXT is the text of the target. INFO is a plist holding
	3322	contextual information."
	3323	(let ((ref (org-export-get-reference radio-target info)))
	3324	(org-html--anchor ref text nil info)))
	3325
	3326	;;;; Special Block
	3327
	3328	(defun org-html-special-block (special-block contents info)
	3329	"Transcode a SPECIAL-BLOCK element from Org to HTML.
	3330	CONTENTS holds the contents of the block. INFO is a plist
	3331	holding contextual information."
	3332	(let* ((block-type (org-element-property :type special-block))
	3333	(html5-fancy (and (org-html--html5-fancy-p info)
	3334	(member block-type org-html-html5-elements)))
	3335	(attributes (org-export-read-attribute :attr_html special-block)))
	3336	(unless html5-fancy
	3337	(let ((class (plist-get attributes :class)))
	3338	(setq attributes (plist-put attributes :class
	3339	(if class (concat class " " block-type)
	3340	block-type)))))
	3341	(let* ((contents (or contents ""))
	3342	(name (org-element-property :name special-block))
	3343	(a (org-html--make-attribute-string
	3344	(if (or (not name) (plist-member attributes :id))
	3345	attributes
	3346	(plist-put attributes :id name))))
	3347	(str (if (org-string-nw-p a) (concat " " a) "")))
	3348	(if html5-fancy
	3349	(format "<%s%s>\n%s</%s>" block-type str contents block-type)
	3350	(format "<div%s>\n%s\n</div>" str contents)))))
	3351
	3352	;;;; Src Block
	3353
	3354	(defun org-html-src-block (src-block _contents info)
	3355	"Transcode a SRC-BLOCK element from Org to HTML.
	3356	CONTENTS holds the contents of the item. INFO is a plist holding
	3357	contextual information."
	3358	(if (org-export-read-attribute :attr_html src-block :textarea)
	3359	(org-html--textarea-block src-block)
	3360	(let* ((lang (org-element-property :language src-block))
	3361	(code (org-html-format-code src-block info))
	3362	(label (let ((lbl (and (org-element-property :name src-block)
	3363	(org-export-get-reference src-block info))))
	3364	(if lbl (format " id=\"%s\"" lbl) "")))
	3365	(klipsify (and (plist-get info :html-klipsify-src)
	3366	(member lang '("javascript" "js"
	3367	"ruby" "scheme" "clojure" "php" "html")))))
	3368	(if (not lang) (format "<pre class=\"example\"%s>\n%s</pre>" label code)
	3369	(format "<div class=\"org-src-container\">\n%s%s\n</div>"
	3370	;; Build caption.
	3371	(let ((caption (org-export-get-caption src-block)))
	3372	(if (not caption) ""
	3373	(let ((listing-number
	3374	(format
	3375	"<span class=\"listing-number\">%s </span>"
	3376	(format
	3377	(org-html--translate "Listing %d:" info)
	3378	(org-export-get-ordinal
	3379	src-block info nil #'org-html--has-caption-p)))))
	3380	(format "<label class=\"org-src-name\">%s%s</label>"
	3381	listing-number
	3382	(org-trim (org-export-data caption info))))))
	3383	;; Contents.
	3384	(if klipsify
	3385	(format "<pre><code class=\"src src-%s\"%s%s>%s</code></pre>"
	3386	lang
	3387	label
	3388	(if (string= lang "html")
	3389	" data-editor-type=\"html\""
	3390	"")
	3391	code)
	3392	(format "<pre class=\"src src-%s\"%s>%s</pre>"
	3393	lang label code)))))))
	3394
	3395	;;;; Statistics Cookie
	3396
	3397	(defun org-html-statistics-cookie (statistics-cookie _contents _info)
	3398	"Transcode a STATISTICS-COOKIE object from Org to HTML.
	3399	CONTENTS is nil. INFO is a plist holding contextual information."
	3400	(let ((cookie-value (org-element-property :value statistics-cookie)))
	3401	(format "<code>%s</code>" cookie-value)))
	3402
	3403	;;;; Strike-Through
	3404
	3405	(defun org-html-strike-through (_strike-through contents info)
	3406	"Transcode STRIKE-THROUGH from Org to HTML.
	3407	CONTENTS is the text with strike-through markup. INFO is a plist
	3408	holding contextual information."
	3409	(format
	3410	(or (cdr (assq 'strike-through (plist-get info :html-text-markup-alist)))
	3411	"%s")
	3412	contents))
	3413
	3414	;;;; Subscript
	3415
	3416	(defun org-html-subscript (_subscript contents _info)
	3417	"Transcode a SUBSCRIPT object from Org to HTML.
	3418	CONTENTS is the contents of the object. INFO is a plist holding
	3419	contextual information."
	3420	(format "<sub>%s</sub>" contents))
	3421
	3422	;;;; Superscript
	3423
	3424	(defun org-html-superscript (_superscript contents _info)
	3425	"Transcode a SUPERSCRIPT object from Org to HTML.
	3426	CONTENTS is the contents of the object. INFO is a plist holding
	3427	contextual information."
	3428	(format "<sup>%s</sup>" contents))
	3429
	3430	;;;; Table Cell
	3431
	3432	(defun org-html-table-cell (table-cell contents info)
	3433	"Transcode a TABLE-CELL element from Org to HTML.
	3434	CONTENTS is nil. INFO is a plist used as a communication
	3435	channel."
	3436	(let* ((table-row (org-export-get-parent table-cell))
	3437	(table (org-export-get-parent-table table-cell))
	3438	(cell-attrs
	3439	(if (not (plist-get info :html-table-align-individual-fields)) ""
	3440	(format (if (and (boundp 'org-html-format-table-no-css)
	3441	org-html-format-table-no-css)
	3442	" align=\"%s\"" " class=\"org-%s\"")
	3443	(org-export-table-cell-alignment table-cell info)))))
	3444	(when (or (not contents) (string= "" (org-trim contents)))
	3445	(setq contents " "))
	3446	(cond
	3447	((and (org-export-table-has-header-p table info)
	3448	(= 1 (org-export-table-row-group table-row info)))
	3449	(let ((header-tags (plist-get info :html-table-header-tags)))
	3450	(concat "\n" (format (car header-tags) "col" cell-attrs)
	3451	contents
	3452	(cdr header-tags))))
	3453	((and (plist-get info :html-table-use-header-tags-for-first-column)
	3454	(zerop (cdr (org-export-table-cell-address table-cell info))))
	3455	(let ((header-tags (plist-get info :html-table-header-tags)))
	3456	(concat "\n" (format (car header-tags) "row" cell-attrs)
	3457	contents
	3458	(cdr header-tags))))
	3459	(t (let ((data-tags (plist-get info :html-table-data-tags)))
	3460	(concat "\n" (format (car data-tags) cell-attrs)
	3461	contents
	3462	(cdr data-tags)))))))
	3463
	3464	;;;; Table Row
	3465
	3466	(defun org-html-table-row (table-row contents info)
	3467	"Transcode a TABLE-ROW element from Org to HTML.
	3468	CONTENTS is the contents of the row. INFO is a plist used as a
	3469	communication channel."
	3470	;; Rules are ignored since table separators are deduced from
	3471	;; borders of the current row.
	3472	(when (eq (org-element-property :type table-row) 'standard)
	3473	(let* ((group (org-export-table-row-group table-row info))
	3474	(number (org-export-table-row-number table-row info))
	3475	(start-group-p
	3476	(org-export-table-row-starts-rowgroup-p table-row info))
	3477	(end-group-p
	3478	(org-export-table-row-ends-rowgroup-p table-row info))
	3479	(topp (and (equal start-group-p '(top))
	3480	(equal end-group-p '(below top))))
	3481	(bottomp (and (equal start-group-p '(above))
	3482	(equal end-group-p '(bottom above))))
	3483	(row-open-tag
	3484	(pcase (plist-get info :html-table-row-open-tag)
	3485	((and accessor (pred functionp))
	3486	(funcall accessor
	3487	number group start-group-p end-group-p topp bottomp))
	3488	(accessor accessor)))
	3489	(row-close-tag
	3490	(pcase (plist-get info :html-table-row-close-tag)
	3491	((and accessor (pred functionp))
	3492	(funcall accessor
	3493	number group start-group-p end-group-p topp bottomp))
	3494	(accessor accessor)))
	3495	(group-tags
	3496	(cond
	3497	;; Row belongs to second or subsequent groups.
	3498	((not (= 1 group)) '("<tbody>" . "\n</tbody>"))
	3499	;; Row is from first group. Table has >=1 groups.
	3500	((org-export-table-has-header-p
	3501	(org-export-get-parent-table table-row) info)
	3502	'("<thead>" . "\n</thead>"))
	3503	;; Row is from first and only group.
	3504	(t '("<tbody>" . "\n</tbody>")))))
	3505	(concat (and start-group-p (car group-tags))
	3506	(concat "\n"
	3507	row-open-tag
	3508	contents
	3509	"\n"
	3510	row-close-tag)
	3511	(and end-group-p (cdr group-tags))))))
	3512
	3513	;;;; Table
	3514
	3515	(defun org-html-table-first-row-data-cells (table info)
	3516	"Transcode the first row of TABLE.
	3517	INFO is a plist used as a communication channel."
	3518	(let ((table-row
	3519	(org-element-map table 'table-row
	3520	(lambda (row)
	3521	(unless (eq (org-element-property :type row) 'rule) row))
	3522	info 'first-match))
	3523	(special-column-p (org-export-table-has-special-column-p table)))
	3524	(if (not special-column-p) (org-element-contents table-row)
	3525	(cdr (org-element-contents table-row)))))
	3526
	3527	(defun org-html-table--table.el-table (table _info)
	3528	"Format table.el tables into HTML.
	3529	INFO is a plist used as a communication channel."
	3530	(when (eq (org-element-property :type table) 'table.el)
	3531	(require 'table)
	3532	(let ((outbuf (with-current-buffer
	3533	(get-buffer-create "org-export-table")
	3534	(erase-buffer) (current-buffer))))
	3535	(with-temp-buffer
	3536	(insert (org-element-property :value table))
	3537	(goto-char 1)
	3538	(re-search-forward "^[ \t]*\|[^\|]" nil t)
	3539	(table-generate-source 'html outbuf))
	3540	(with-current-buffer outbuf
	3541	(prog1 (org-trim (buffer-string))
	3542	(kill-buffer) )))))
	3543
	3544	(defun org-html-table (table contents info)
	3545	"Transcode a TABLE element from Org to HTML.
	3546	CONTENTS is the contents of the table. INFO is a plist holding
	3547	contextual information."
	3548	(if (eq (org-element-property :type table) 'table.el)
	3549	;; "table.el" table. Convert it using appropriate tools.
	3550	(org-html-table--table.el-table table info)
	3551	;; Standard table.
	3552	(let* ((caption (org-export-get-caption table))
	3553	(number (org-export-get-ordinal
	3554	table info nil #'org-html--has-caption-p))
	3555	(attributes
	3556	(org-html--make-attribute-string
	3557	(org-combine-plists
	3558	(and (org-element-property :name table)
	3559	(list :id (org-export-get-reference table info)))
	3560	(and (not (org-html-html5-p info))
	3561	(plist-get info :html-table-attributes))
	3562	(org-export-read-attribute :attr_html table))))
	3563	(alignspec
	3564	(if (bound-and-true-p org-html-format-table-no-css)
	3565	"align=\"%s\""
	3566	"class=\"org-%s\""))
	3567	(table-column-specs
	3568	(lambda (table info)
	3569	(mapconcat
	3570	(lambda (table-cell)
	3571	(let ((alignment (org-export-table-cell-alignment
	3572	table-cell info)))
	3573	(concat
	3574	;; Begin a colgroup?
	3575	(when (org-export-table-cell-starts-colgroup-p
	3576	table-cell info)
	3577	"\n<colgroup>")
	3578	;; Add a column. Also specify its alignment.
	3579	(format "\n%s"
	3580	(org-html-close-tag
	3581	"col" (concat " " (format alignspec alignment)) info))
	3582	;; End a colgroup?
	3583	(when (org-export-table-cell-ends-colgroup-p
	3584	table-cell info)
	3585	"\n</colgroup>"))))
	3586	(org-html-table-first-row-data-cells table info) "\n"))))
	3587	(format "<table%s>\n%s\n%s\n%s</table>"
	3588	(if (equal attributes "") "" (concat " " attributes))
	3589	(if (not caption) ""
	3590	(format (if (plist-get info :html-table-caption-above)
	3591	"<caption class=\"t-above\">%s</caption>"
	3592	"<caption class=\"t-bottom\">%s</caption>")
	3593	(concat
	3594	"<span class=\"table-number\">"
	3595	(format (org-html--translate "Table %d:" info) number)
	3596	"</span> " (org-export-data caption info))))
	3597	(funcall table-column-specs table info)
	3598	contents))))
	3599
	3600	;;;; Target
	3601
	3602	(defun org-html-target (target _contents info)
	3603	"Transcode a TARGET object from Org to HTML.
	3604	CONTENTS is nil. INFO is a plist holding contextual
	3605	information."
	3606	(let ((ref (org-export-get-reference target info)))
	3607	(org-html--anchor ref nil nil info)))
	3608
	3609	;;;; Timestamp
	3610
	3611	(defun org-html-timestamp (timestamp _contents info)
	3612	"Transcode a TIMESTAMP object from Org to HTML.
	3613	CONTENTS is nil. INFO is a plist holding contextual
	3614	information."
	3615	(let ((value (org-html-plain-text (org-timestamp-translate timestamp) info)))
	3616	(format "<span class=\"timestamp-wrapper\"><span class=\"timestamp\">%s</span></span>"
	3617	(replace-regexp-in-string "--" "–" value))))
	3618
	3619	;;;; Underline
	3620
	3621	(defun org-html-underline (_underline contents info)
	3622	"Transcode UNDERLINE from Org to HTML.
	3623	CONTENTS is the text with underline markup. INFO is a plist
	3624	holding contextual information."
	3625	(format (or (cdr (assq 'underline (plist-get info :html-text-markup-alist)))
	3626	"%s")
	3627	contents))
	3628
	3629	;;;; Verbatim
	3630
	3631	(defun org-html-verbatim (verbatim _contents info)
	3632	"Transcode VERBATIM from Org to HTML.
	3633	CONTENTS is nil. INFO is a plist holding contextual
	3634	information."
	3635	(format (or (cdr (assq 'verbatim (plist-get info :html-text-markup-alist))) "%s")
	3636	(org-html-encode-plain-text (org-element-property :value verbatim))))
	3637
	3638	;;;; Verse Block
	3639
	3640	(defun org-html-verse-block (_verse-block contents info)
	3641	"Transcode a VERSE-BLOCK element from Org to HTML.
	3642	CONTENTS is verse block contents. INFO is a plist holding
	3643	contextual information."
	3644	(format "<p class=\"verse\">\n%s</p>"
	3645	;; Replace leading white spaces with non-breaking spaces.
	3646	(replace-regexp-in-string
	3647	"^[ \t]+" (lambda (m) (org-html--make-string (length m) " "))
	3648	;; Replace each newline character with line break. Also
	3649	;; remove any trailing "br" close-tag so as to avoid
	3650	;; duplicates.
	3651	(let* ((br (org-html-close-tag "br" nil info))
	3652	(re (format "\\(?:%s\\)?[ \t]*\n" (regexp-quote br))))
	3653	(replace-regexp-in-string re (concat br "\n") contents)))))
	3654
	3655
	3656	;;; Filter Functions
	3657
	3658	(defun org-html-final-function (contents _backend info)
	3659	"Filter to indent the HTML and convert HTML entities."
	3660	(with-temp-buffer
	3661	(insert contents)
	3662	(set-auto-mode t)
	3663	(if (plist-get info :html-indent)
	3664	(indent-region (point-min) (point-max)))
	3665	(buffer-substring-no-properties (point-min) (point-max))))
	3666
	3667
	3668	;;; End-user functions
	3669
	3670	;;;###autoload
	3671	(defun org-html-export-as-html
	3672	(&optional async subtreep visible-only body-only ext-plist)
	3673	"Export current buffer to an HTML buffer.
	3674
	3675	If narrowing is active in the current buffer, only export its
	3676	narrowed part.
	3677
	3678	If a region is active, export that region.
	3679
	3680	A non-nil optional argument ASYNC means the process should happen
	3681	asynchronously. The resulting buffer should be accessible
	3682	through the `org-export-stack' interface.
	3683
	3684	When optional argument SUBTREEP is non-nil, export the sub-tree
	3685	at point, extracting information from the headline properties
	3686	first.
	3687
	3688	When optional argument VISIBLE-ONLY is non-nil, don't export
	3689	contents of hidden elements.
	3690
	3691	When optional argument BODY-ONLY is non-nil, only write code
	3692	between \"<body>\" and \"</body>\" tags.
	3693
	3694	EXT-PLIST, when provided, is a property list with external
	3695	parameters overriding Org default settings, but still inferior to
	3696	file-local settings.
	3697
	3698	Export is done in a buffer named \"Org HTML Export\", which
	3699	will be displayed when `org-export-show-temporary-export-buffer'
	3700	is non-nil."
	3701	(interactive)
	3702	(org-export-to-buffer 'html "Org HTML Export"
	3703	async subtreep visible-only body-only ext-plist
	3704	(lambda () (set-auto-mode t))))
	3705
	3706	;;;###autoload
	3707	(defun org-html-convert-region-to-html ()
	3708	"Assume the current region has Org syntax, and convert it to HTML.
	3709	This can be used in any buffer. For example, you can write an
	3710	itemized list in Org syntax in an HTML buffer and use this command
	3711	to convert it."
	3712	(interactive)
	3713	(org-export-replace-region-by 'html))
	3714
	3715	;;;###autoload
	3716	(defun org-html-export-to-html
	3717	(&optional async subtreep visible-only body-only ext-plist)
	3718	"Export current buffer to a HTML file.
	3719
	3720	If narrowing is active in the current buffer, only export its
	3721	narrowed part.
	3722
	3723	If a region is active, export that region.
	3724
	3725	A non-nil optional argument ASYNC means the process should happen
	3726	asynchronously. The resulting file should be accessible through
	3727	the `org-export-stack' interface.
	3728
	3729	When optional argument SUBTREEP is non-nil, export the sub-tree
	3730	at point, extracting information from the headline properties
	3731	first.
	3732
	3733	When optional argument VISIBLE-ONLY is non-nil, don't export
	3734	contents of hidden elements.
	3735
	3736	When optional argument BODY-ONLY is non-nil, only write code
	3737	between \"<body>\" and \"</body>\" tags.
	3738
	3739	EXT-PLIST, when provided, is a property list with external
	3740	parameters overriding Org default settings, but still inferior to
	3741	file-local settings.
	3742
	3743	Return output file's name."
	3744	(interactive)
	3745	(let* ((extension (concat "." (or (plist-get ext-plist :html-extension)
	3746	org-html-extension
	3747	"html")))
	3748	(file (org-export-output-file-name extension subtreep))
	3749	(org-export-coding-system org-html-coding-system))
	3750	(org-export-to-file 'html file
	3751	async subtreep visible-only body-only ext-plist)))
	3752
	3753	;;;###autoload
	3754	(defun org-html-publish-to-html (plist filename pub-dir)
	3755	"Publish an org file to HTML.
	3756
	3757	FILENAME is the filename of the Org file to be published. PLIST
	3758	is the property list for the given project. PUB-DIR is the
	3759	publishing directory.
	3760
	3761	Return output file name."
	3762	(org-publish-org-to 'html filename
	3763	(concat "." (or (plist-get plist :html-extension)
	3764	org-html-extension
	3765	"html"))
	3766	plist pub-dir))
	3767
	3768
	3769	(provide 'ox-html)
	3770
	3771	;; Local variables:
	3772	;; generated-autoload-file: "org-loaddefs.el"
	3773	;; End:
	3774
	3775	;;; ox-html.el ends here