vault backup: 2025-09-07 20:45:17
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|
||||
const N="__SCRIPT_END__",O=/\[\s*((\d*):)?\s*([\s\d,|-]*)\]/,D={"&":"&","<":"<",">":">",'"':""","'":"'"};return()=>{let e;function t(e){let t=(e.querySelector("[data-template]")||e.querySelector("script")||e).textContent;t=t.replace(new RegExp(N,"g"),"<\/script>");const n=t.match(/^\n?(\s*)/)[1].length,s=t.match(/^\n?(\t*)/)[1].length;return s>0?t=t.replace(new RegExp("\\n?\\t{"+s+"}(.*)","g"),(function(e,t){return"\n"+t})):n>1&&(t=t.replace(new RegExp("\\n? {"+n+"}(.*)","g"),(function(e,t){return"\n"+t}))),t}function n(e){const t=e.attributes,n=[];for(let e=0,s=t.length;e<s;e++){const s=t[e].name,r=t[e].value;/data\-(markdown|separator|vertical|notes)/gi.test(s)||(r?n.push(s+'="'+r+'"'):n.push(s))}return n.join(" ")}function s(t){const n=e?.getConfig?.().markdown;return(t=t||{}).separator=t.separator||n?.separator||"\r?\n---\r?\n",t.verticalSeparator=t.verticalSeparator||n?.verticalSeparator||null,t.notesSeparator=t.notesSeparator||n?.notesSeparator||"^s*notes?:",t.attributes=t.attributes||"",t}function r(e,t){t=s(t);const n=e.split(new RegExp(t.notesSeparator,"mgi"));return 2===n.length&&(e=n[0]+'<aside class="notes">'+P(n[1].trim())+"</aside>"),'<script type="text/template">'+(e=e.replace(/<\/script>/g,N))+"<\/script>"}function i(e,t){t=s(t);const n=new RegExp(t.separator+(t.verticalSeparator?"|"+t.verticalSeparator:""),"mg"),i=new RegExp(t.separator);let l,o,a,c=0,h=!0,p=[];for(;l=n.exec(e);)o=i.test(l[0]),!o&&h&&p.push([]),a=e.substring(c,l.index),o&&h?p.push(a):p[p.length-1].push(a),c=n.lastIndex,h=o;(h?p:p[p.length-1]).push(e.substring(c));let u="";for(let e=0,n=p.length;e<n;e++)p[e]instanceof Array?(u+="<section "+t.attributes+">",p[e].forEach((function(e){u+="<section data-markdown>"+r(e,t)+"</section>"})),u+="</section>"):u+="<section "+t.attributes+" data-markdown>"+r(p[e],t)+"</section>";return u}function l(e){return new Promise((function(s){const r=[];[].slice.call(e.querySelectorAll("section[data-markdown]:not([data-markdown-parsed])")).forEach((function(e,s){e.getAttribute("data-markdown").length?r.push(function(e){return new Promise((function(t,n){const s=new XMLHttpRequest,r=e.getAttribute("data-markdown"),i=e.getAttribute("data-charset");null!==i&&""!==i&&s.overrideMimeType("text/html; charset="+i),s.onreadystatechange=function(e,s){4===s.readyState&&(s.status>=200&&s.status<300||0===s.status?t(s,r):n(s,r))}.bind(this,e,s),s.open("GET",r,!0);try{s.send()}catch(e){console.warn("Failed to get the Markdown file "+r+". Make sure that the presentation and the file are served by a HTTP server and the file can be found there. "+e),t(s,r)}}))}(e).then((function(t,s){e.outerHTML=i(t.responseText,{separator:e.getAttribute("data-separator"),verticalSeparator:e.getAttribute("data-separator-vertical"),notesSeparator:e.getAttribute("data-separator-notes"),attributes:n(e)})}),(function(t,n){e.outerHTML='<section data-state="alert">ERROR: The attempt to fetch '+n+" failed with HTTP status "+t.status+".Check your browser's JavaScript console for more details.<p>Remember that you need to serve the presentation HTML from a HTTP server.</p></section>"}))):e.outerHTML=i(t(e),{separator:e.getAttribute("data-separator"),verticalSeparator:e.getAttribute("data-separator-vertical"),notesSeparator:e.getAttribute("data-separator-notes"),attributes:n(e)})})),Promise.all(r).then(s)}))}function o(e,t,n){const s=new RegExp(n,"mg"),r=new RegExp('([^"= ]+?)="([^"]+?)"|(data-[^"= ]+?)(?=[" ])',"mg");let i,l,o=e.nodeValue;if(i=s.exec(o)){const n=i[1];for(o=o.substring(0,i.index)+o.substring(s.lastIndex),e.nodeValue=o;l=r.exec(n);)l[2]?t.setAttribute(l[1],l[2]):t.setAttribute(l[3],"");return!0}return!1}function a(e,t,n,s,r){if(null!==t&&void 0!==t.childNodes&&t.childNodes.length>0){let n=t;for(let i=0;i<t.childNodes.length;i++){const l=t.childNodes[i];if(i>0){let e=i-1;for(;e>=0;){const s=t.childNodes[e];if("function"==typeof s.setAttribute&&"BR"!==s.tagName){n=s;break}e-=1}}let o=e;"section"===l.nodeName&&(o=l,n=l),"function"!=typeof l.setAttribute&&l.nodeType!==Node.COMMENT_NODE||a(o,l,n,s,r)}}t.nodeType===Node.COMMENT_NODE&&!1===o(t,n,s)&&o(t,e,r)}function c(){const n=e.getRevealElement().querySelectorAll("[data-markdown]:not([data-markdown-parsed])");return[].slice.call(n).forEach((function(e){e.setAttribute("data-markdown-parsed",!0);const n=e.querySelector("aside.notes"),s=t(e);e.innerHTML=P(s),a(e,e,null,e.getAttribute("data-element-attributes")||e.parentNode.getAttribute("data-element-attributes")||"\\.element\\s*?(.+?)$",e.getAttribute("data-attributes")||e.parentNode.getAttribute("data-attributes")||"\\.slide:\\s*?(\\S.+?)$"),n&&e.appendChild(n)})),Promise.resolve()}return{id:"markdown",init:function(t){e=t;let{renderer:n,animateLists:s,...r}=e.getConfig().markdown||{};return n||(n=new P.Renderer,n.code=(e,t)=>{let n="",s="";if(O.test(t)){let e=t.match(O)[2];e&&(n=`data-ln-start-from="${e.trim()}"`),s=t.match(O)[3].trim(),s=`data-line-numbers="${s}"`,t=t.replace(O,"").trim()}return`<pre><code ${sLine truncated
|
||||
@@ -0,0 +1,491 @@
|
||||
/*!
|
||||
* The reveal.js markdown plugin. Handles parsing of
|
||||
* markdown inside of presentations as well as loading
|
||||
* of external markdown documents.
|
||||
*/
|
||||
|
||||
import { marked } from 'marked';
|
||||
|
||||
const DEFAULT_SLIDE_SEPARATOR = '\r?\n---\r?\n',
|
||||
DEFAULT_VERTICAL_SEPARATOR = null,
|
||||
DEFAULT_NOTES_SEPARATOR = '^\s*notes?:',
|
||||
DEFAULT_ELEMENT_ATTRIBUTES_SEPARATOR = '\\\.element\\\s*?(.+?)$',
|
||||
DEFAULT_SLIDE_ATTRIBUTES_SEPARATOR = '\\\.slide:\\\s*?(\\\S.+?)$';
|
||||
|
||||
const SCRIPT_END_PLACEHOLDER = '__SCRIPT_END__';
|
||||
|
||||
// match an optional line number offset and highlight line numbers
|
||||
// [<line numbers>] or [<offset>: <line numbers>]
|
||||
const CODE_LINE_NUMBER_REGEX = /\[\s*((\d*):)?\s*([\s\d,|-]*)\]/;
|
||||
|
||||
const HTML_ESCAPE_MAP = {
|
||||
'&': '&',
|
||||
'<': '<',
|
||||
'>': '>',
|
||||
'"': '"',
|
||||
"'": '''
|
||||
};
|
||||
|
||||
const Plugin = () => {
|
||||
|
||||
// The reveal.js instance this plugin is attached to
|
||||
let deck;
|
||||
|
||||
/**
|
||||
* Retrieves the markdown contents of a slide section
|
||||
* element. Normalizes leading tabs/whitespace.
|
||||
*/
|
||||
function getMarkdownFromSlide( section ) {
|
||||
|
||||
// look for a <script> or <textarea data-template> wrapper
|
||||
const template = section.querySelector( '[data-template]' ) || section.querySelector( 'script' );
|
||||
|
||||
// strip leading whitespace so it isn't evaluated as code
|
||||
let text = ( template || section ).textContent;
|
||||
|
||||
// restore script end tags
|
||||
text = text.replace( new RegExp( SCRIPT_END_PLACEHOLDER, 'g' ), '</script>' );
|
||||
|
||||
const leadingWs = text.match( /^\n?(\s*)/ )[1].length,
|
||||
leadingTabs = text.match( /^\n?(\t*)/ )[1].length;
|
||||
|
||||
if( leadingTabs > 0 ) {
|
||||
text = text.replace( new RegExp('\\n?\\t{' + leadingTabs + '}(.*)','g'), function(m, p1) { return '\n' + p1 ; } );
|
||||
}
|
||||
else if( leadingWs > 1 ) {
|
||||
text = text.replace( new RegExp('\\n? {' + leadingWs + '}(.*)', 'g'), function(m, p1) { return '\n' + p1 ; } );
|
||||
}
|
||||
|
||||
return text;
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Given a markdown slide section element, this will
|
||||
* return all arguments that aren't related to markdown
|
||||
* parsing. Used to forward any other user-defined arguments
|
||||
* to the output markdown slide.
|
||||
*/
|
||||
function getForwardedAttributes( section ) {
|
||||
|
||||
const attributes = section.attributes;
|
||||
const result = [];
|
||||
|
||||
for( let i = 0, len = attributes.length; i < len; i++ ) {
|
||||
const name = attributes[i].name,
|
||||
value = attributes[i].value;
|
||||
|
||||
// disregard attributes that are used for markdown loading/parsing
|
||||
if( /data\-(markdown|separator|vertical|notes)/gi.test( name ) ) continue;
|
||||
|
||||
if( value ) {
|
||||
result.push( name + '="' + value + '"' );
|
||||
}
|
||||
else {
|
||||
result.push( name );
|
||||
}
|
||||
}
|
||||
|
||||
return result.join( ' ' );
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Inspects the given options and fills out default
|
||||
* values for what's not defined.
|
||||
*/
|
||||
function getSlidifyOptions( options ) {
|
||||
const markdownConfig = deck?.getConfig?.().markdown;
|
||||
|
||||
options = options || {};
|
||||
options.separator = options.separator || markdownConfig?.separator || DEFAULT_SLIDE_SEPARATOR;
|
||||
options.verticalSeparator = options.verticalSeparator || markdownConfig?.verticalSeparator || DEFAULT_VERTICAL_SEPARATOR;
|
||||
options.notesSeparator = options.notesSeparator || markdownConfig?.notesSeparator || DEFAULT_NOTES_SEPARATOR;
|
||||
options.attributes = options.attributes || '';
|
||||
|
||||
return options;
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Helper function for constructing a markdown slide.
|
||||
*/
|
||||
function createMarkdownSlide( content, options ) {
|
||||
|
||||
options = getSlidifyOptions( options );
|
||||
|
||||
const notesMatch = content.split( new RegExp( options.notesSeparator, 'mgi' ) );
|
||||
|
||||
if( notesMatch.length === 2 ) {
|
||||
content = notesMatch[0] + '<aside class="notes">' + marked(notesMatch[1].trim()) + '</aside>';
|
||||
}
|
||||
|
||||
// prevent script end tags in the content from interfering
|
||||
// with parsing
|
||||
content = content.replace( /<\/script>/g, SCRIPT_END_PLACEHOLDER );
|
||||
|
||||
return '<script type="text/template">' + content + '</script>';
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Parses a data string into multiple slides based
|
||||
* on the passed in separator arguments.
|
||||
*/
|
||||
function slidify( markdown, options ) {
|
||||
|
||||
options = getSlidifyOptions( options );
|
||||
|
||||
const separatorRegex = new RegExp( options.separator + ( options.verticalSeparator ? '|' + options.verticalSeparator : '' ), 'mg' ),
|
||||
horizontalSeparatorRegex = new RegExp( options.separator );
|
||||
|
||||
let matches,
|
||||
lastIndex = 0,
|
||||
isHorizontal,
|
||||
wasHorizontal = true,
|
||||
content,
|
||||
sectionStack = [];
|
||||
|
||||
// iterate until all blocks between separators are stacked up
|
||||
while( matches = separatorRegex.exec( markdown ) ) {
|
||||
const notes = null;
|
||||
|
||||
// determine direction (horizontal by default)
|
||||
isHorizontal = horizontalSeparatorRegex.test( matches[0] );
|
||||
|
||||
if( !isHorizontal && wasHorizontal ) {
|
||||
// create vertical stack
|
||||
sectionStack.push( [] );
|
||||
}
|
||||
|
||||
// pluck slide content from markdown input
|
||||
content = markdown.substring( lastIndex, matches.index );
|
||||
|
||||
if( isHorizontal && wasHorizontal ) {
|
||||
// add to horizontal stack
|
||||
sectionStack.push( content );
|
||||
}
|
||||
else {
|
||||
// add to vertical stack
|
||||
sectionStack[sectionStack.length-1].push( content );
|
||||
}
|
||||
|
||||
lastIndex = separatorRegex.lastIndex;
|
||||
wasHorizontal = isHorizontal;
|
||||
}
|
||||
|
||||
// add the remaining slide
|
||||
( wasHorizontal ? sectionStack : sectionStack[sectionStack.length-1] ).push( markdown.substring( lastIndex ) );
|
||||
|
||||
let markdownSections = '';
|
||||
|
||||
// flatten the hierarchical stack, and insert <section data-markdown> tags
|
||||
for( let i = 0, len = sectionStack.length; i < len; i++ ) {
|
||||
// vertical
|
||||
if( sectionStack[i] instanceof Array ) {
|
||||
markdownSections += '<section '+ options.attributes +'>';
|
||||
|
||||
sectionStack[i].forEach( function( child ) {
|
||||
markdownSections += '<section data-markdown>' + createMarkdownSlide( child, options ) + '</section>';
|
||||
} );
|
||||
|
||||
markdownSections += '</section>';
|
||||
}
|
||||
else {
|
||||
markdownSections += '<section '+ options.attributes +' data-markdown>' + createMarkdownSlide( sectionStack[i], options ) + '</section>';
|
||||
}
|
||||
}
|
||||
|
||||
return markdownSections;
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Parses any current data-markdown slides, splits
|
||||
* multi-slide markdown into separate sections and
|
||||
* handles loading of external markdown.
|
||||
*/
|
||||
function processSlides( scope ) {
|
||||
|
||||
return new Promise( function( resolve ) {
|
||||
|
||||
const externalPromises = [];
|
||||
|
||||
[].slice.call( scope.querySelectorAll( 'section[data-markdown]:not([data-markdown-parsed])') ).forEach( function( section, i ) {
|
||||
|
||||
if( section.getAttribute( 'data-markdown' ).length ) {
|
||||
|
||||
externalPromises.push( loadExternalMarkdown( section ).then(
|
||||
|
||||
// Finished loading external file
|
||||
function( xhr, url ) {
|
||||
section.outerHTML = slidify( xhr.responseText, {
|
||||
separator: section.getAttribute( 'data-separator' ),
|
||||
verticalSeparator: section.getAttribute( 'data-separator-vertical' ),
|
||||
notesSeparator: section.getAttribute( 'data-separator-notes' ),
|
||||
attributes: getForwardedAttributes( section )
|
||||
});
|
||||
},
|
||||
|
||||
// Failed to load markdown
|
||||
function( xhr, url ) {
|
||||
section.outerHTML = '<section data-state="alert">' +
|
||||
'ERROR: The attempt to fetch ' + url + ' failed with HTTP status ' + xhr.status + '.' +
|
||||
'Check your browser\'s JavaScript console for more details.' +
|
||||
'<p>Remember that you need to serve the presentation HTML from a HTTP server.</p>' +
|
||||
'</section>';
|
||||
}
|
||||
|
||||
) );
|
||||
|
||||
}
|
||||
else {
|
||||
|
||||
section.outerHTML = slidify( getMarkdownFromSlide( section ), {
|
||||
separator: section.getAttribute( 'data-separator' ),
|
||||
verticalSeparator: section.getAttribute( 'data-separator-vertical' ),
|
||||
notesSeparator: section.getAttribute( 'data-separator-notes' ),
|
||||
attributes: getForwardedAttributes( section )
|
||||
});
|
||||
|
||||
}
|
||||
|
||||
});
|
||||
|
||||
Promise.all( externalPromises ).then( resolve );
|
||||
|
||||
} );
|
||||
|
||||
}
|
||||
|
||||
function loadExternalMarkdown( section ) {
|
||||
|
||||
return new Promise( function( resolve, reject ) {
|
||||
|
||||
const xhr = new XMLHttpRequest(),
|
||||
url = section.getAttribute( 'data-markdown' );
|
||||
|
||||
const datacharset = section.getAttribute( 'data-charset' );
|
||||
|
||||
// see https://developer.mozilla.org/en-US/docs/Web/API/element.getAttribute#Notes
|
||||
if( datacharset !== null && datacharset !== '' ) {
|
||||
xhr.overrideMimeType( 'text/html; charset=' + datacharset );
|
||||
}
|
||||
|
||||
xhr.onreadystatechange = function( section, xhr ) {
|
||||
if( xhr.readyState === 4 ) {
|
||||
// file protocol yields status code 0 (useful for local debug, mobile applications etc.)
|
||||
if ( ( xhr.status >= 200 && xhr.status < 300 ) || xhr.status === 0 ) {
|
||||
|
||||
resolve( xhr, url );
|
||||
|
||||
}
|
||||
else {
|
||||
|
||||
reject( xhr, url );
|
||||
|
||||
}
|
||||
}
|
||||
}.bind( this, section, xhr );
|
||||
|
||||
xhr.open( 'GET', url, true );
|
||||
|
||||
try {
|
||||
xhr.send();
|
||||
}
|
||||
catch ( e ) {
|
||||
console.warn( 'Failed to get the Markdown file ' + url + '. Make sure that the presentation and the file are served by a HTTP server and the file can be found there. ' + e );
|
||||
resolve( xhr, url );
|
||||
}
|
||||
|
||||
} );
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if a node value has the attributes pattern.
|
||||
* If yes, extract it and add that value as one or several attributes
|
||||
* to the target element.
|
||||
*
|
||||
* You need Cache Killer on Chrome to see the effect on any FOM transformation
|
||||
* directly on refresh (F5)
|
||||
* http://stackoverflow.com/questions/5690269/disabling-chrome-cache-for-website-development/7000899#answer-11786277
|
||||
*/
|
||||
function addAttributeInElement( node, elementTarget, separator ) {
|
||||
|
||||
const markdownClassesInElementsRegex = new RegExp( separator, 'mg' );
|
||||
const markdownClassRegex = new RegExp( "([^\"= ]+?)=\"([^\"]+?)\"|(data-[^\"= ]+?)(?=[\" ])", 'mg' );
|
||||
let nodeValue = node.nodeValue;
|
||||
let matches,
|
||||
matchesClass;
|
||||
if( matches = markdownClassesInElementsRegex.exec( nodeValue ) ) {
|
||||
|
||||
const classes = matches[1];
|
||||
nodeValue = nodeValue.substring( 0, matches.index ) + nodeValue.substring( markdownClassesInElementsRegex.lastIndex );
|
||||
node.nodeValue = nodeValue;
|
||||
while( matchesClass = markdownClassRegex.exec( classes ) ) {
|
||||
if( matchesClass[2] ) {
|
||||
elementTarget.setAttribute( matchesClass[1], matchesClass[2] );
|
||||
} else {
|
||||
elementTarget.setAttribute( matchesClass[3], "" );
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Add attributes to the parent element of a text node,
|
||||
* or the element of an attribute node.
|
||||
*/
|
||||
function addAttributes( section, element, previousElement, separatorElementAttributes, separatorSectionAttributes ) {
|
||||
|
||||
if ( element !== null && element.childNodes !== undefined && element.childNodes.length > 0 ) {
|
||||
let previousParentElement = element;
|
||||
for( let i = 0; i < element.childNodes.length; i++ ) {
|
||||
const childElement = element.childNodes[i];
|
||||
if ( i > 0 ) {
|
||||
let j = i - 1;
|
||||
while ( j >= 0 ) {
|
||||
const aPreviousChildElement = element.childNodes[j];
|
||||
if ( typeof aPreviousChildElement.setAttribute === 'function' && aPreviousChildElement.tagName !== "BR" ) {
|
||||
previousParentElement = aPreviousChildElement;
|
||||
break;
|
||||
}
|
||||
j = j - 1;
|
||||
}
|
||||
}
|
||||
let parentSection = section;
|
||||
if( childElement.nodeName === "section" ) {
|
||||
parentSection = childElement ;
|
||||
previousParentElement = childElement ;
|
||||
}
|
||||
if ( typeof childElement.setAttribute === 'function' || childElement.nodeType === Node.COMMENT_NODE ) {
|
||||
addAttributes( parentSection, childElement, previousParentElement, separatorElementAttributes, separatorSectionAttributes );
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if ( element.nodeType === Node.COMMENT_NODE ) {
|
||||
if ( addAttributeInElement( element, previousElement, separatorElementAttributes ) === false ) {
|
||||
addAttributeInElement( element, section, separatorSectionAttributes );
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Converts any current data-markdown slides in the
|
||||
* DOM to HTML.
|
||||
*/
|
||||
function convertSlides() {
|
||||
|
||||
const sections = deck.getRevealElement().querySelectorAll( '[data-markdown]:not([data-markdown-parsed])');
|
||||
|
||||
[].slice.call( sections ).forEach( function( section ) {
|
||||
|
||||
section.setAttribute( 'data-markdown-parsed', true )
|
||||
|
||||
const notes = section.querySelector( 'aside.notes' );
|
||||
const markdown = getMarkdownFromSlide( section );
|
||||
|
||||
section.innerHTML = marked( markdown );
|
||||
addAttributes( section, section, null, section.getAttribute( 'data-element-attributes' ) ||
|
||||
section.parentNode.getAttribute( 'data-element-attributes' ) ||
|
||||
DEFAULT_ELEMENT_ATTRIBUTES_SEPARATOR,
|
||||
section.getAttribute( 'data-attributes' ) ||
|
||||
section.parentNode.getAttribute( 'data-attributes' ) ||
|
||||
DEFAULT_SLIDE_ATTRIBUTES_SEPARATOR);
|
||||
|
||||
// If there were notes, we need to re-add them after
|
||||
// having overwritten the section's HTML
|
||||
if( notes ) {
|
||||
section.appendChild( notes );
|
||||
}
|
||||
|
||||
} );
|
||||
|
||||
return Promise.resolve();
|
||||
|
||||
}
|
||||
|
||||
function escapeForHTML( input ) {
|
||||
|
||||
return input.replace( /([&<>'"])/g, char => HTML_ESCAPE_MAP[char] );
|
||||
|
||||
}
|
||||
|
||||
return {
|
||||
id: 'markdown',
|
||||
|
||||
/**
|
||||
* Starts processing and converting Markdown within the
|
||||
* current reveal.js deck.
|
||||
*/
|
||||
init: function( reveal ) {
|
||||
|
||||
deck = reveal;
|
||||
|
||||
let { renderer, animateLists, ...markedOptions } = deck.getConfig().markdown || {};
|
||||
|
||||
if( !renderer ) {
|
||||
renderer = new marked.Renderer();
|
||||
|
||||
renderer.code = ( code, language ) => {
|
||||
|
||||
// Off by default
|
||||
let lineNumberOffset = '';
|
||||
let lineNumbers = '';
|
||||
|
||||
// Users can opt in to show line numbers and highlight
|
||||
// specific lines.
|
||||
// ```javascript [] show line numbers
|
||||
// ```javascript [1,4-8] highlights lines 1 and 4-8
|
||||
// optional line number offset:
|
||||
// ```javascript [25: 1,4-8] start line numbering at 25,
|
||||
// highlights lines 1 (numbered as 25) and 4-8 (numbered as 28-32)
|
||||
if( CODE_LINE_NUMBER_REGEX.test( language ) ) {
|
||||
let lineNumberOffsetMatch = language.match( CODE_LINE_NUMBER_REGEX )[2];
|
||||
if (lineNumberOffsetMatch){
|
||||
lineNumberOffset = `data-ln-start-from="${lineNumberOffsetMatch.trim()}"`;
|
||||
}
|
||||
|
||||
lineNumbers = language.match( CODE_LINE_NUMBER_REGEX )[3].trim();
|
||||
lineNumbers = `data-line-numbers="${lineNumbers}"`;
|
||||
language = language.replace( CODE_LINE_NUMBER_REGEX, '' ).trim();
|
||||
}
|
||||
|
||||
// Escape before this gets injected into the DOM to
|
||||
// avoid having the HTML parser alter our code before
|
||||
// highlight.js is able to read it
|
||||
code = escapeForHTML( code );
|
||||
|
||||
// return `<pre><code ${lineNumbers} class="${language}">${code}</code></pre>`;
|
||||
|
||||
return `<pre><code ${lineNumbers} ${lineNumberOffset} class="${language}">${code}</code></pre>`;
|
||||
};
|
||||
}
|
||||
|
||||
if( animateLists === true ) {
|
||||
renderer.listitem = text => `<li class="fragment">${text}</li>`;
|
||||
}
|
||||
|
||||
marked.setOptions( {
|
||||
renderer,
|
||||
...markedOptions
|
||||
} );
|
||||
|
||||
return processSlides( deck.getRevealElement() ).then( convertSlides );
|
||||
|
||||
},
|
||||
|
||||
// TODO: Do these belong in the API?
|
||||
processSlides: processSlides,
|
||||
convertSlides: convertSlides,
|
||||
slidify: slidify,
|
||||
marked: marked
|
||||
}
|
||||
|
||||
};
|
||||
|
||||
export default Plugin;
|
||||
Reference in new issue
Block a user