Add reveal.js markdown parser to repo
This commit is contained in:
parent
1440a77470
commit
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@ -17,6 +17,7 @@
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"leaflet": "^1.9.3",
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"leaflet": "^1.9.3",
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"leaflet.markercluster": "^1.5.3",
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"leaflet.markercluster": "^1.5.3",
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"lunr": "^2.3.9",
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"lunr": "^2.3.9",
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"marked": "^4.3.0",
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"rehype-katex": "^6.0.2",
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"rehype-katex": "^6.0.2",
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"remark-emoji": "^3.1.1",
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"remark-emoji": "^3.1.1",
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"remark-math": "^5.1.1",
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"remark-math": "^5.1.1",
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@ -30,6 +31,7 @@
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"@types/leaflet": "^1.9.3",
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"@types/leaflet": "^1.9.3",
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"@types/leaflet.markercluster": "^1.5.1",
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"@types/leaflet.markercluster": "^1.5.1",
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"@types/lunr": "^2.3.4",
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"@types/lunr": "^2.3.4",
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"@types/marked": "^4.0.8",
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"@types/reveal.js": "^4.4.2"
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"@types/reveal.js": "^4.4.2"
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}
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}
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}
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}
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@ -22,6 +22,9 @@ dependencies:
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lunr:
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lunr:
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specifier: ^2.3.9
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specifier: ^2.3.9
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version: 2.3.9
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version: 2.3.9
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marked:
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specifier: ^4.3.0
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version: 4.3.0
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rehype-katex:
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rehype-katex:
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specifier: ^6.0.2
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specifier: ^6.0.2
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version: 6.0.2
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version: 6.0.2
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@ -57,6 +60,9 @@ devDependencies:
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'@types/lunr':
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'@types/lunr':
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specifier: ^2.3.4
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specifier: ^2.3.4
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version: 2.3.4
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version: 2.3.4
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'@types/marked':
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specifier: ^4.0.8
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version: 4.0.8
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'@types/reveal.js':
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'@types/reveal.js':
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specifier: ^4.4.2
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specifier: ^4.4.2
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version: 4.4.2
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version: 4.4.2
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@ -883,6 +889,10 @@ packages:
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resolution: {integrity: sha512-j4x4XJwZvorEUbA519VdQ5b9AOU9TSvfi8tvxMAfP8XzNLtFex7A8vFQwqOx3WACbV0KMXbACV3cZl4/gynQ7g==}
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resolution: {integrity: sha512-j4x4XJwZvorEUbA519VdQ5b9AOU9TSvfi8tvxMAfP8XzNLtFex7A8vFQwqOx3WACbV0KMXbACV3cZl4/gynQ7g==}
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dev: true
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dev: true
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/@types/marked@4.0.8:
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resolution: {integrity: sha512-HVNzMT5QlWCOdeuBsgXP8EZzKUf0+AXzN+sLmjvaB3ZlLqO+e4u0uXrdw9ub69wBKFs+c6/pA4r9sy6cCDvImw==}
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dev: true
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/@types/mdast@3.0.11:
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/@types/mdast@3.0.11:
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resolution: {integrity: sha512-Y/uImid8aAwrEA24/1tcRZwpxX3pIFTSilcNDKSPn+Y2iDywSEachzRuvgAYYLR3wpGXAsMbv5lvKLDZLeYPAw==}
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resolution: {integrity: sha512-Y/uImid8aAwrEA24/1tcRZwpxX3pIFTSilcNDKSPn+Y2iDywSEachzRuvgAYYLR3wpGXAsMbv5lvKLDZLeYPAw==}
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dependencies:
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dependencies:
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@ -2092,6 +2102,12 @@ packages:
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resolution: {integrity: sha512-Z1NL3Tb1M9wH4XESsCDEksWoKTdlUafKc4pt0GRwjUyXaCFZ+dc3g2erqB6zm3szA2IUSi7VnPI+o/9jnxh9hw==}
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resolution: {integrity: sha512-Z1NL3Tb1M9wH4XESsCDEksWoKTdlUafKc4pt0GRwjUyXaCFZ+dc3g2erqB6zm3szA2IUSi7VnPI+o/9jnxh9hw==}
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dev: false
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dev: false
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/marked@4.3.0:
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resolution: {integrity: sha512-PRsaiG84bK+AMvxziE/lCFss8juXjNaWzVbN5tXAm4XjeaS9NAHhop+PjQxz2A9h8Q4M/xGmzP8vqNwy6JeK0A==}
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engines: {node: '>= 12'}
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hasBin: true
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dev: false
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/mdast-util-definitions@5.1.2:
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/mdast-util-definitions@5.1.2:
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resolution: {integrity: sha512-8SVPMuHqlPME/z3gqVwWY4zVXn8lqKv/pAhC57FuJ40ImXyBpmO5ukh98zB2v7Blql2FiHjHv9LVztSIqjY+MA==}
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resolution: {integrity: sha512-8SVPMuHqlPME/z3gqVwWY4zVXn8lqKv/pAhC57FuJ40ImXyBpmO5ukh98zB2v7Blql2FiHjHv9LVztSIqjY+MA==}
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dependencies:
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dependencies:
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478
src/assets/reveal-md.js
Normal file
478
src/assets/reveal-md.js
Normal file
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@ -0,0 +1,478 @@
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/* Copyright (C) 2011-2023 Hakim El Hattab, http://hakim.se, and reveal.js contributors
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* License: MIT (https://github.com/hakimel/reveal.js/blob/master/LICENSE)
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*
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* The reveal.js markdown plugin. Handles parsing of
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* markdown inside of presentations as well as loading
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* of external markdown documents.
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*/
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import { marked } from 'marked';
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const DEFAULT_SLIDE_SEPARATOR = '\r?\n---\r?\n',
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DEFAULT_NOTES_SEPARATOR = 'notes?:',
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DEFAULT_ELEMENT_ATTRIBUTES_SEPARATOR = '\\\.element\\\s*?(.+?)$',
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DEFAULT_SLIDE_ATTRIBUTES_SEPARATOR = '\\\.slide:\\\s*?(\\\S.+?)$';
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const SCRIPT_END_PLACEHOLDER = '__SCRIPT_END__';
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const CODE_LINE_NUMBER_REGEX = /\[([\s\d,|-]*)\]/;
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const HTML_ESCAPE_MAP = {
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'&': '&',
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'<': '<',
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'>': '>',
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'"': '"',
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"'": '''
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};
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const Plugin = () => {
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// The reveal.js instance this plugin is attached to
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let deck;
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/**
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* Retrieves the markdown contents of a slide section
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* element. Normalizes leading tabs/whitespace.
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*/
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function getMarkdownFromSlide( section ) {
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// look for a <script> or <textarea data-template> wrapper
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var template = section.querySelector( '[data-template]' ) || section.querySelector( 'script' );
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// strip leading whitespace so it isn't evaluated as code
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var text = ( template || section ).textContent;
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// restore script end tags
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text = text.replace( new RegExp( SCRIPT_END_PLACEHOLDER, 'g' ), '</script>' );
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var leadingWs = text.match( /^\n?(\s*)/ )[1].length,
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leadingTabs = text.match( /^\n?(\t*)/ )[1].length;
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if( leadingTabs > 0 ) {
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text = text.replace( new RegExp('\\n?\\t{' + leadingTabs + '}(.*)','g'), function(m, p1) { return '\n' + p1 ; } );
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}
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else if( leadingWs > 1 ) {
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text = text.replace( new RegExp('\\n? {' + leadingWs + '}(.*)', 'g'), function(m, p1) { return '\n' + p1 ; } );
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}
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return text;
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}
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/**
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* Given a markdown slide section element, this will
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* return all arguments that aren't related to markdown
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* parsing. Used to forward any other user-defined arguments
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* to the output markdown slide.
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*/
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function getForwardedAttributes( section ) {
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var attributes = section.attributes;
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var result = [];
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for( var i = 0, len = attributes.length; i < len; i++ ) {
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var name = attributes[i].name,
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value = attributes[i].value;
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// disregard attributes that are used for markdown loading/parsing
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if( /data\-(markdown|separator|vertical|notes)/gi.test( name ) ) continue;
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if( value ) {
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result.push( name + '="' + value + '"' );
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}
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else {
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result.push( name );
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}
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}
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return result.join( ' ' );
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}
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/**
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* Inspects the given options and fills out default
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* values for what's not defined.
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*/
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function getSlidifyOptions( options ) {
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options = options || {};
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options.separator = options.separator || DEFAULT_SLIDE_SEPARATOR;
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options.notesSeparator = options.notesSeparator || DEFAULT_NOTES_SEPARATOR;
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options.attributes = options.attributes || '';
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return options;
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}
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/**
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* Helper function for constructing a markdown slide.
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*/
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function createMarkdownSlide( content, options ) {
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options = getSlidifyOptions( options );
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var notesMatch = content.split( new RegExp( options.notesSeparator, 'mgi' ) );
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if( notesMatch.length === 2 ) {
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content = notesMatch[0] + '<aside class="notes">' + marked(notesMatch[1].trim()) + '</aside>';
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}
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// prevent script end tags in the content from interfering
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// with parsing
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content = content.replace( /<\/script>/g, SCRIPT_END_PLACEHOLDER );
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return '<script type="text/template">' + content + '</script>';
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}
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/**
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* Parses a data string into multiple slides based
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* on the passed in separator arguments.
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*/
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function slidify( markdown, options ) {
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options = getSlidifyOptions( options );
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var separatorRegex = new RegExp( options.separator + ( options.verticalSeparator ? '|' + options.verticalSeparator : '' ), 'mg' ),
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horizontalSeparatorRegex = new RegExp( options.separator );
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var matches,
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lastIndex = 0,
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isHorizontal,
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wasHorizontal = true,
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content,
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sectionStack = [];
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// iterate until all blocks between separators are stacked up
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while( matches = separatorRegex.exec( markdown ) ) {
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var notes = null;
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// determine direction (horizontal by default)
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isHorizontal = horizontalSeparatorRegex.test( matches[0] );
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if( !isHorizontal && wasHorizontal ) {
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// create vertical stack
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sectionStack.push( [] );
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}
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// pluck slide content from markdown input
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content = markdown.substring( lastIndex, matches.index );
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if( isHorizontal && wasHorizontal ) {
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// add to horizontal stack
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sectionStack.push( content );
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}
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else {
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// add to vertical stack
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sectionStack[sectionStack.length-1].push( content );
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}
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lastIndex = separatorRegex.lastIndex;
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wasHorizontal = isHorizontal;
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}
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// add the remaining slide
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( wasHorizontal ? sectionStack : sectionStack[sectionStack.length-1] ).push( markdown.substring( lastIndex ) );
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var markdownSections = '';
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// flatten the hierarchical stack, and insert <section data-markdown> tags
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for( var i = 0, len = sectionStack.length; i < len; i++ ) {
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// vertical
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if( sectionStack[i] instanceof Array ) {
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markdownSections += '<section '+ options.attributes +'>';
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sectionStack[i].forEach( function( child ) {
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markdownSections += '<section data-markdown>' + createMarkdownSlide( child, options ) + '</section>';
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} );
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markdownSections += '</section>';
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}
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else {
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markdownSections += '<section '+ options.attributes +' data-markdown>' + createMarkdownSlide( sectionStack[i], options ) + '</section>';
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}
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}
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return markdownSections;
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}
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/**
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* Parses any current data-markdown slides, splits
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* multi-slide markdown into separate sections and
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* handles loading of external markdown.
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*/
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function processSlides( scope ) {
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return new Promise( function( resolve ) {
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var externalPromises = [];
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[].slice.call( scope.querySelectorAll( 'section[data-markdown]:not([data-markdown-parsed])') ).forEach( function( section, i ) {
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if( section.getAttribute( 'data-markdown' ).length ) {
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externalPromises.push( loadExternalMarkdown( section ).then(
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// Finished loading external file
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function( xhr, url ) {
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section.outerHTML = slidify( xhr.responseText, {
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separator: section.getAttribute( 'data-separator' ),
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verticalSeparator: section.getAttribute( 'data-separator-vertical' ),
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notesSeparator: section.getAttribute( 'data-separator-notes' ),
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attributes: getForwardedAttributes( section )
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});
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},
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// Failed to load markdown
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function( xhr, url ) {
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section.outerHTML = '<section data-state="alert">' +
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'ERROR: The attempt to fetch ' + url + ' failed with HTTP status ' + xhr.status + '.' +
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'Check your browser\'s JavaScript console for more details.' +
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'<p>Remember that you need to serve the presentation HTML from a HTTP server.</p>' +
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'</section>';
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}
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) );
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}
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else {
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section.outerHTML = slidify( getMarkdownFromSlide( section ), {
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separator: section.getAttribute( 'data-separator' ),
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verticalSeparator: section.getAttribute( 'data-separator-vertical' ),
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notesSeparator: section.getAttribute( 'data-separator-notes' ),
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attributes: getForwardedAttributes( section )
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});
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}
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});
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Promise.all( externalPromises ).then( resolve );
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} );
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}
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function loadExternalMarkdown( section ) {
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return new Promise( function( resolve, reject ) {
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var xhr = new XMLHttpRequest(),
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url = section.getAttribute( 'data-markdown' );
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var datacharset = section.getAttribute( 'data-charset' );
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// see https://developer.mozilla.org/en-US/docs/Web/API/element.getAttribute#Notes
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if( datacharset != null && datacharset != '' ) {
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xhr.overrideMimeType( 'text/html; charset=' + datacharset );
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}
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xhr.onreadystatechange = function( section, xhr ) {
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if( xhr.readyState === 4 ) {
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// file protocol yields status code 0 (useful for local debug, mobile applications etc.)
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if ( ( xhr.status >= 200 && xhr.status < 300 ) || xhr.status === 0 ) {
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resolve( xhr, url );
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}
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else {
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reject( xhr, url );
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}
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}
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}.bind( this, section, xhr );
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xhr.open( 'GET', url, true );
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try {
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xhr.send();
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}
|
||||||
|
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 ) {
|
||||||
|
|
||||||
|
var mardownClassesInElementsRegex = new RegExp( separator, 'mg' );
|
||||||
|
var mardownClassRegex = new RegExp( "([^\"= ]+?)=\"([^\"]+?)\"|(data-[^\"= ]+?)(?=[\" ])", 'mg' );
|
||||||
|
var nodeValue = node.nodeValue;
|
||||||
|
var matches,
|
||||||
|
matchesClass;
|
||||||
|
if( matches = mardownClassesInElementsRegex.exec( nodeValue ) ) {
|
||||||
|
|
||||||
|
var classes = matches[1];
|
||||||
|
nodeValue = nodeValue.substring( 0, matches.index ) + nodeValue.substring( mardownClassesInElementsRegex.lastIndex );
|
||||||
|
node.nodeValue = nodeValue;
|
||||||
|
while( matchesClass = mardownClassRegex.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 ) {
|
||||||
|
var previousParentElement = element;
|
||||||
|
for( var i = 0; i < element.childNodes.length; i++ ) {
|
||||||
|
var childElement = element.childNodes[i];
|
||||||
|
if ( i > 0 ) {
|
||||||
|
var j = i - 1;
|
||||||
|
while ( j >= 0 ) {
|
||||||
|
var aPreviousChildElement = element.childNodes[j];
|
||||||
|
if ( typeof aPreviousChildElement.setAttribute == 'function' && aPreviousChildElement.tagName != "BR" ) {
|
||||||
|
previousParentElement = aPreviousChildElement;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
j = j - 1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
var 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() {
|
||||||
|
|
||||||
|
var sections = deck.getRevealElement().querySelectorAll( '[data-markdown]:not([data-markdown-parsed])');
|
||||||
|
|
||||||
|
[].slice.call( sections ).forEach( function( section ) {
|
||||||
|
|
||||||
|
section.setAttribute( 'data-markdown-parsed', true )
|
||||||
|
|
||||||
|
var notes = section.querySelector( 'aside.notes' );
|
||||||
|
var 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 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
|
||||||
|
if( CODE_LINE_NUMBER_REGEX.test( language ) ) {
|
||||||
|
lineNumbers = language.match( CODE_LINE_NUMBER_REGEX )[1].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}">${code}</code></pre>`;
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
if( animateLists === true ) {
|
||||||
|
renderer.listitem = text => `<li class="fragment">${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;
|
|
@ -5,16 +5,16 @@ import Header from "../components/base/Header.astro";
|
||||||
import Footer from "../components/base/Footer.astro";
|
import Footer from "../components/base/Footer.astro";
|
||||||
---
|
---
|
||||||
<html lang="en">
|
<html lang="en">
|
||||||
<Head />
|
<Head/>
|
||||||
<body>
|
<body>
|
||||||
<slot name="header">
|
<slot name="header">
|
||||||
<Header />
|
<Header/>
|
||||||
</slot>
|
</slot>
|
||||||
|
|
||||||
<slot />
|
<slot />
|
||||||
|
|
||||||
<slot name="footer">
|
<slot name="footer">
|
||||||
<Footer />
|
<Footer/>
|
||||||
</slot>
|
</slot>
|
||||||
</body>
|
</body>
|
||||||
</html>
|
</html>
|
||||||
|
|
|
@ -45,5 +45,5 @@ import '../assets/leaflet-photo/styles.scss';
|
||||||
loadData().then(data => photoLayer.add(data).addTo(map));
|
loadData().then(data => photoLayer.add(data).addTo(map));
|
||||||
</script>
|
</script>
|
||||||
|
|
||||||
<div slot="footer"></div>
|
<div slot="footer" style="display: none;"></div>
|
||||||
</Base>
|
</Base>
|
||||||
|
|
|
@ -24,7 +24,7 @@ const { entry } = Astro.props;
|
||||||
</div>
|
</div>
|
||||||
<script>
|
<script>
|
||||||
import Reveal from 'reveal.js';
|
import Reveal from 'reveal.js';
|
||||||
import Markdown from 'reveal.js/plugin/markdown/markdown';
|
import Markdown from '../../assets/reveal-md';
|
||||||
import Highlight from 'reveal.js/plugin/highlight/highlight';
|
import Highlight from 'reveal.js/plugin/highlight/highlight';
|
||||||
|
|
||||||
Reveal.initialize({
|
Reveal.initialize({
|
||||||
|
@ -41,6 +41,6 @@ const { entry } = Astro.props;
|
||||||
}
|
}
|
||||||
</style>
|
</style>
|
||||||
|
|
||||||
<span slot="header"></span>
|
<span slot="header" style="display: none;"></span>
|
||||||
<span slot="footer"></span>
|
<span slot="footer" style="display: none;"></span>
|
||||||
</Base>
|
</Base>
|
||||||
|
|
|
@ -1,3 +1,6 @@
|
||||||
{
|
{
|
||||||
"extends": "astro/tsconfigs/strict"
|
"extends": "astro/tsconfigs/strict",
|
||||||
|
"compilerOptions": {
|
||||||
|
"allowJs": true
|
||||||
|
}
|
||||||
}
|
}
|
Loading…
Reference in a new issue