diff options
Diffstat (limited to '2024-06-18-guix-social/reveal.js/plugin/markdown')
3 files changed, 505 insertions, 0 deletions
diff --git a/2024-06-18-guix-social/reveal.js/plugin/markdown/markdown.esm.js b/2024-06-18-guix-social/reveal.js/plugin/markdown/markdown.esm.js new file mode 100644 index 0000000..174e123 --- /dev/null +++ b/2024-06-18-guix-social/reveal.js/plugin/markdown/markdown.esm.js @@ -0,0 +1,7 @@ +function e(){return{async:!1,baseUrl:null,breaks:!1,extensions:null,gfm:!0,headerIds:!0,headerPrefix:"",highlight:null,hooks:null,langPrefix:"language-",mangle:!0,pedantic:!1,renderer:null,sanitize:!1,sanitizer:null,silent:!1,smartypants:!1,tokenizer:null,walkTokens:null,xhtml:!1}}let t={async:!1,baseUrl:null,breaks:!1,extensions:null,gfm:!0,headerIds:!0,headerPrefix:"",highlight:null,hooks:null,langPrefix:"language-",mangle:!0,pedantic:!1,renderer:null,sanitize:!1,sanitizer:null,silent:!1,smartypants:!1,tokenizer:null,walkTokens:null,xhtml:!1};const n=/[&<>"']/,s=new RegExp(n.source,"g"),r=/[<>"']|&(?!(#\d{1,7}|#[Xx][a-fA-F0-9]{1,6}|\w+);)/,i=new 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t=this.rules.inline.br.exec(e);if(t)return{type:"br",raw:t[0]}}del(e){const t=this.rules.inline.del.exec(e);if(t)return{type:"del",raw:t[0],text:t[2],tokens:this.lexer.inlineTokens(t[2])}}autolink(e,t){const n=this.rules.inline.autolink.exec(e);if(n){let e,s;return"@"===n[2]?(e=a(this.options.mangle?t(n[1]):n[1]),s="mailto:"+e):(e=a(n[1]),s=e),{type:"link",raw:n[0],text:e,href:s,tokens:[{type:"text",raw:e,text:e}]}}}url(e,t){let n;if(n=this.rules.inline.url.exec(e)){let e,s;if("@"===n[2])e=a(this.options.mangle?t(n[0]):n[0]),s="mailto:"+e;else{let t;do{t=n[0],n[0]=this.rules.inline._backpedal.exec(n[0])[0]}while(t!==n[0]);e=a(n[0]),s="www."===n[1]?"http://"+n[0]:n[0]}return{type:"link",raw:n[0],text:e,href:s,tokens:[{type:"text",raw:e,text:e}]}}}inlineText(e,t){const n=this.rules.inline.text.exec(e);if(n){let e;return 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*){3,})(?:\\n+|$))").replace("def","\\n+(?="+R.def.source+")").getRegex(),R._tag="address|article|aside|base|basefont|blockquote|body|caption|center|col|colgroup|dd|details|dialog|dir|div|dl|dt|fieldset|figcaption|figure|footer|form|frame|frameset|h[1-6]|head|header|hr|html|iframe|legend|li|link|main|menu|menuitem|meta|nav|noframes|ol|optgroup|option|p|param|section|source|summary|table|tbody|td|tfoot|th|thead|title|tr|track|ul",R._comment=/<!--(?!-?>)[\s\S]*?(?:-->|$)/,R.html=u(R.html,"i").replace("comment",R._comment).replace("tag",R._tag).replace("attribute",/ +[a-zA-Z:_][\w.:-]*(?: *= *"[^"\n]*"| *= *'[^'\n]*'| *= *[^\s"'=<>`]+)?/).getRegex(),R.paragraph=u(R._paragraph).replace("hr",R.hr).replace("heading"," {0,3}#{1,6} ").replace("|lheading","").replace("|table","").replace("blockquote"," {0,3}>").replace("fences"," {0,3}(?:`{3,}(?=[^`\\n]*\\n)|~{3,})[^\\n]*\\n").replace("list"," {0,3}(?:[*+-]|1[.)]) ").replace("html","</?(?:tag)(?: +|\\n|/?>)|<(?:script|pre|style|textarea|!--)").replace("tag",R._tag).getRegex(),R.blockquote=u(R.blockquote).replace("paragraph",R.paragraph).getRegex(),R.normal={...R},R.gfm={...R.normal,table:"^ *([^\\n ].*\\|.*)\\n {0,3}(?:\\| *)?(:?-+:? *(?:\\| *:?-+:? *)*)(?:\\| *)?(?:\\n((?:(?! *\\n|hr|heading|blockquote|code|fences|list|html).*(?:\\n|$))*)\\n*|$)"},R.gfm.table=u(R.gfm.table).replace("hr",R.hr).replace("heading"," {0,3}#{1,6} ").replace("blockquote"," {0,3}>").replace("code"," {4}[^\\n]").replace("fences"," {0,3}(?:`{3,}(?=[^`\\n]*\\n)|~{3,})[^\\n]*\\n").replace("list"," {0,3}(?:[*+-]|1[.)]) ").replace("html","</?(?:tag)(?: +|\\n|/?>)|<(?:script|pre|style|textarea|!--)").replace("tag",R._tag).getRegex(),R.gfm.paragraph=u(R._paragraph).replace("hr",R.hr).replace("heading"," {0,3}#{1,6} ").replace("|lheading","").replace("table",R.gfm.table).replace("blockquote"," {0,3}>").replace("fences"," {0,3}(?:`{3,}(?=[^`\\n]*\\n)|~{3,})[^\\n]*\\n").replace("list"," {0,3}(?:[*+-]|1[.)]) ").replace("html","</?(?:tag)(?: +|\\n|/?>)|<(?:script|pre|style|textarea|!--)").replace("tag",R._tag).getRegex(),R.pedantic={...R.normal,html:u("^ *(?:comment *(?:\\n|\\s*$)|<(tag)[\\s\\S]+?</\\1> *(?:\\n{2,}|\\s*$)|<tag(?:\"[^\"]*\"|'[^']*'|\\s[^'\"/>\\s]*)*?/?> *(?:\\n{2,}|\\s*$))").replace("comment",R._comment).replace(/tag/g,"(?!(?:a|em|strong|small|s|cite|q|dfn|abbr|data|time|code|var|samp|kbd|sub|sup|i|b|u|mark|ruby|rt|rp|bdi|bdo|span|br|wbr|ins|del|img)\\b)\\w+(?!:|[^\\w\\s@]*@)\\b").getRegex(),def:/^ *\[([^\]]+)\]: *<?([^\s>]+)>?(?: +(["(][^\n]+[")]))? *(?:\n+|$)/,heading:/^(#{1,6})(.*)(?:\n+|$)/,fences:w,lheading:/^(.+?)\n {0,3}(=+|-+) *(?:\n+|$)/,paragraph:u(R.normal._paragraph).replace("hr",R.hr).replace("heading"," *#{1,6} *[^\n]").replace("lheading",R.lheading).replace("blockquote"," {0,3}>").replace("|fences","").replace("|list","").replace("|html","").getRegex()};const T={escape:/^\\([!"#$%&'()*+,\-./:;<=>?@\[\]\\^_`{|}~])/,autolink:/^<(scheme:[^\s\x00-\x1f<>]*|email)>/,url:w,tag:"^comment|^</[a-zA-Z][\\w:-]*\\s*>|^<[a-zA-Z][\\w-]*(?:attribute)*?\\s*/?>|^<\\?[\\s\\S]*?\\?>|^<![a-zA-Z]+\\s[\\s\\S]*?>|^<!\\[CDATA\\[[\\s\\S]*?\\]\\]>",link:/^!?\[(label)\]\(\s*(href)(?:\s+(title))?\s*\)/,reflink:/^!?\[(label)\]\[(ref)\]/,nolink:/^!?\[(ref)\](?:\[\])?/,reflinkSearch:"reflink|nolink(?!\\()",emStrong:{lDelim:/^(?:\*+(?:([punct_])|[^\s*]))|^_+(?:([punct*])|([^\s_]))/,rDelimAst:/^(?:[^_*\\]|\\.)*?\_\_(?:[^_*\\]|\\.)*?\*(?:[^_*\\]|\\.)*?(?=\_\_)|(?:[^*\\]|\\.)+(?=[^*])|[punct_](\*+)(?=[\s]|$)|(?:[^punct*_\s\\]|\\.)(\*+)(?=[punct_\s]|$)|[punct_\s](\*+)(?=[^punct*_\s])|[\s](\*+)(?=[punct_])|[punct_](\*+)(?=[punct_])|(?:[^punct*_\s\\]|\\.)(\*+)(?=[^punct*_\s])/,rDelimUnd:/^(?:[^_*\\]|\\.)*?\*\*(?:[^_*\\]|\\.)*?\_(?:[^_*\\]|\\.)*?(?=\*\*)|(?:[^_\\]|\\.)+(?=[^_])|[punct*](\_+)(?=[\s]|$)|(?:[^punct*_\s\\]|\\.)(\_+)(?=[punct*\s]|$)|[punct*\s](\_+)(?=[^punct*_\s])|[\s](\_+)(?=[punct*])|[punct*](\_+)(?=[punct*])/},code:/^(`+)([^`]|[^`][\s\S]*?[^`])\1(?!`)/,br:/^( {2,}|\\)\n(?!\s*$)/,del:w,text:/^(`+|[^`])(?:(?= {2,}\n)|[\s\S]*?(?:(?=[\\<!\[`*_]|\b_|$)|[^ ](?= {2,}\n)))/,punctuation:/^([\spunctuation])/};function A(e){return e.replace(/---/g,"—").replace(/--/g,"–").replace(/(^|[-\u2014/(\[{"\s])'/g,"$1‘").replace(/'/g,"’").replace(/(^|[-\u2014/(\[{\u2018\s])"/g,"$1“").replace(/"/g,"”").replace(/\.{3}/g,"…")}function E(e){let t,n,s="";const r=e.length;for(t=0;t<r;t++)n=e.charCodeAt(t),Math.random()>.5&&(n="x"+n.toString(16)),s+="&#"+n+";";return s}T._punctuation="!\"#$%&'()+\\-.,/:;<=>?@\\[\\]`^{|}~",T.punctuation=u(T.punctuation).replace(/punctuation/g,T._punctuation).getRegex(),T.blockSkip=/\[[^\]]*?\]\([^\)]*?\)|`[^`]*?`|<[^>]*?>/g,T.escapedEmSt=/(?:^|[^\\])(?:\\\\)*\\[*_]/g,T._comment=u(R._comment).replace("(?:--\x3e|$)","--\x3e").getRegex(),T.emStrong.lDelim=u(T.emStrong.lDelim).replace(/punct/g,T._punctuation).getRegex(),T.emStrong.rDelimAst=u(T.emStrong.rDelimAst,"g").replace(/punct/g,T._punctuation).getRegex(),T.emStrong.rDelimUnd=u(T.emStrong.rDelimUnd,"g").replace(/punct/g,T._punctuation).getRegex(),T._escapes=/\\([!"#$%&'()*+,\-./:;<=>?@\[\]\\^_`{|}~])/g,T._scheme=/[a-zA-Z][a-zA-Z0-9+.-]{1,31}/,T._email=/[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+(@)[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)+(?![-_])/,T.autolink=u(T.autolink).replace("scheme",T._scheme).replace("email",T._email).getRegex(),T._attribute=/\s+[a-zA-Z:_][\w.:-]*(?:\s*=\s*"[^"]*"|\s*=\s*'[^']*'|\s*=\s*[^\s"'=<>`]+)?/,T.tag=u(T.tag).replace("comment",T._comment).replace("attribute",T._attribute).getRegex(),T._label=/(?:\[(?:\\.|[^\[\]\\])*\]|\\.|`[^`]*`|[^\[\]\\`])*?/,T._href=/<(?:\\.|[^\n<>\\])+>|[^\s\x00-\x1f]*/,T._title=/"(?:\\"?|[^"\\])*"|'(?:\\'?|[^'\\])*'|\((?:\\\)?|[^)\\])*\)/,T.link=u(T.link).replace("label",T._label).replace("href",T._href).replace("title",T._title).getRegex(),T.reflink=u(T.reflink).replace("label",T._label).replace("ref",R._label).getRegex(),T.nolink=u(T.nolink).replace("ref",R._label).getRegex(),T.reflinkSearch=u(T.reflinkSearch,"g").replace("reflink",T.reflink).replace("nolink",T.nolink).getRegex(),T.normal={...T},T.pedantic={...T.normal,strong:{start:/^__|\*\*/,middle:/^__(?=\S)([\s\S]*?\S)__(?!_)|^\*\*(?=\S)([\s\S]*?\S)\*\*(?!\*)/,endAst:/\*\*(?!\*)/g,endUnd:/__(?!_)/g},em:{start:/^_|\*/,middle:/^()\*(?=\S)([\s\S]*?\S)\*(?!\*)|^_(?=\S)([\s\S]*?\S)_(?!_)/,endAst:/\*(?!\*)/g,endUnd:/_(?!_)/g},link:u(/^!?\[(label)\]\((.*?)\)/).replace("label",T._label).getRegex(),reflink:u(/^!?\[(label)\]\s*\[([^\]]*)\]/).replace("label",T._label).getRegex()},T.gfm={...T.normal,escape:u(T.escape).replace("])","~|])").getRegex(),_extended_email:/[A-Za-z0-9._+-]+(@)[a-zA-Z0-9-_]+(?:\.[a-zA-Z0-9-_]*[a-zA-Z0-9])+(?![-_])/,url:/^((?:ftp|https?):\/\/|www\.)(?:[a-zA-Z0-9\-]+\.?)+[^\s<]*|^email/,_backpedal:/(?:[^?!.,:;*_'"~()&]+|\([^)]*\)|&(?![a-zA-Z0-9]+;$)|[?!.,:;*_'"~)]+(?!$))+/,del:/^(~~?)(?=[^\s~])([\s\S]*?[^\s~])\1(?=[^~]|$)/,text:/^([`~]+|[^`~])(?:(?= {2,}\n)|(?=[a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-]+@)|[\s\S]*?(?:(?=[\\<!\[`*~_]|\b_|https?:\/\/|ftp:\/\/|www\.|$)|[^ ](?= {2,}\n)|[^a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-](?=[a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-]+@)))/},T.gfm.url=u(T.gfm.url,"i").replace("email",T.gfm._extended_email).getRegex(),T.breaks={...T.gfm,br:u(T.br).replace("{2,}","*").getRegex(),text:u(T.gfm.text).replace("\\b_","\\b_| {2,}\\n").replace(/\{2,\}/g,"*").getRegex()};class v{constructor(e){this.tokens=[],this.tokens.links=Object.create(null),this.options=e||t,this.options.tokenizer=this.options.tokenizer||new S,this.tokenizer=this.options.tokenizer,this.tokenizer.options=this.options,this.tokenizer.lexer=this,this.inlineQueue=[],this.state={inLink:!1,inRawBlock:!1,top:!0};const n={block:R.normal,inline:T.normal};this.options.pedantic?(n.block=R.pedantic,n.inline=T.pedantic):this.options.gfm&&(n.block=R.gfm,this.options.breaks?n.inline=T.breaks:n.inline=T.gfm),this.tokenizer.rules=n}static get rules(){return{block:R,inline:T}}static lex(e,t){return new v(t).lex(e)}static lexInline(e,t){return new v(t).inlineTokens(e)}lex(e){let t;for(e=e.replace(/\r\n|\r/g,"\n"),this.blockTokens(e,this.tokens);t=this.inlineQueue.shift();)this.inlineTokens(t.src,t.tokens);return this.tokens}blockTokens(e,t=[]){let n,s,r,i;for(e=this.options.pedantic?e.replace(/\t/g," ").replace(/^ +$/gm,""):e.replace(/^( *)(\t+)/gm,((e,t,n)=>t+" ".repeat(n.length)));e;)if(!(this.options.extensions&&this.options.extensions.block&&this.options.extensions.block.some((s=>!!(n=s.call({lexer:this},e,t))&&(e=e.substring(n.raw.length),t.push(n),!0)))))if(n=this.tokenizer.space(e))e=e.substring(n.raw.length),1===n.raw.length&&t.length>0?t[t.length-1].raw+="\n":t.push(n);else if(n=this.tokenizer.code(e))e=e.substring(n.raw.length),s=t[t.length-1],!s||"paragraph"!==s.type&&"text"!==s.type?t.push(n):(s.raw+="\n"+n.raw,s.text+="\n"+n.text,this.inlineQueue[this.inlineQueue.length-1].src=s.text);else if(n=this.tokenizer.fences(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.heading(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.hr(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.blockquote(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.list(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.html(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.def(e))e=e.substring(n.raw.length),s=t[t.length-1],!s||"paragraph"!==s.type&&"text"!==s.type?this.tokens.links[n.tag]||(this.tokens.links[n.tag]={href:n.href,title:n.title}):(s.raw+="\n"+n.raw,s.text+="\n"+n.raw,this.inlineQueue[this.inlineQueue.length-1].src=s.text);else if(n=this.tokenizer.table(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.lheading(e))e=e.substring(n.raw.length),t.push(n);else{if(r=e,this.options.extensions&&this.options.extensions.startBlock){let t=1/0;const n=e.slice(1);let s;this.options.extensions.startBlock.forEach((function(e){s=e.call({lexer:this},n),"number"==typeof s&&s>=0&&(t=Math.min(t,s))})),t<1/0&&t>=0&&(r=e.substring(0,t+1))}if(this.state.top&&(n=this.tokenizer.paragraph(r)))s=t[t.length-1],i&&"paragraph"===s.type?(s.raw+="\n"+n.raw,s.text+="\n"+n.text,this.inlineQueue.pop(),this.inlineQueue[this.inlineQueue.length-1].src=s.text):t.push(n),i=r.length!==e.length,e=e.substring(n.raw.length);else if(n=this.tokenizer.text(e))e=e.substring(n.raw.length),s=t[t.length-1],s&&"text"===s.type?(s.raw+="\n"+n.raw,s.text+="\n"+n.text,this.inlineQueue.pop(),this.inlineQueue[this.inlineQueue.length-1].src=s.text):t.push(n);else if(e){const t="Infinite loop on byte: "+e.charCodeAt(0);if(this.options.silent){console.error(t);break}throw new Error(t)}}return this.state.top=!0,t}inline(e,t=[]){return this.inlineQueue.push({src:e,tokens:t}),t}inlineTokens(e,t=[]){let n,s,r,i,l,o,a=e;if(this.tokens.links){const e=Object.keys(this.tokens.links);if(e.length>0)for(;null!=(i=this.tokenizer.rules.inline.reflinkSearch.exec(a));)e.includes(i[0].slice(i[0].lastIndexOf("[")+1,-1))&&(a=a.slice(0,i.index)+"["+$("a",i[0].length-2)+"]"+a.slice(this.tokenizer.rules.inline.reflinkSearch.lastIndex))}for(;null!=(i=this.tokenizer.rules.inline.blockSkip.exec(a));)a=a.slice(0,i.index)+"["+$("a",i[0].length-2)+"]"+a.slice(this.tokenizer.rules.inline.blockSkip.lastIndex);for(;null!=(i=this.tokenizer.rules.inline.escapedEmSt.exec(a));)a=a.slice(0,i.index+i[0].length-2)+"++"+a.slice(this.tokenizer.rules.inline.escapedEmSt.lastIndex),this.tokenizer.rules.inline.escapedEmSt.lastIndex--;for(;e;)if(l||(o=""),l=!1,!(this.options.extensions&&this.options.extensions.inline&&this.options.extensions.inline.some((s=>!!(n=s.call({lexer:this},e,t))&&(e=e.substring(n.raw.length),t.push(n),!0)))))if(n=this.tokenizer.escape(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.tag(e))e=e.substring(n.raw.length),s=t[t.length-1],s&&"text"===n.type&&"text"===s.type?(s.raw+=n.raw,s.text+=n.text):t.push(n);else if(n=this.tokenizer.link(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.reflink(e,this.tokens.links))e=e.substring(n.raw.length),s=t[t.length-1],s&&"text"===n.type&&"text"===s.type?(s.raw+=n.raw,s.text+=n.text):t.push(n);else if(n=this.tokenizer.emStrong(e,a,o))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.codespan(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.br(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.del(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.autolink(e,E))e=e.substring(n.raw.length),t.push(n);else if(this.state.inLink||!(n=this.tokenizer.url(e,E))){if(r=e,this.options.extensions&&this.options.extensions.startInline){let t=1/0;const n=e.slice(1);let s;this.options.extensions.startInline.forEach((function(e){s=e.call({lexer:this},n),"number"==typeof s&&s>=0&&(t=Math.min(t,s))})),t<1/0&&t>=0&&(r=e.substring(0,t+1))}if(n=this.tokenizer.inlineText(r,A))e=e.substring(n.raw.length),"_"!==n.raw.slice(-1)&&(o=n.raw.slice(-1)),l=!0,s=t[t.length-1],s&&"text"===s.type?(s.raw+=n.raw,s.text+=n.text):t.push(n);else if(e){const t="Infinite loop on byte: "+e.charCodeAt(0);if(this.options.silent){console.error(t);break}throw new Error(t)}}else e=e.substring(n.raw.length),t.push(n);return t}}class I{constructor(e){this.options=e||t}code(e,t,n){const s=(t||"").match(/\S*/)[0];if(this.options.highlight){const t=this.options.highlight(e,s);null!=t&&t!==e&&(n=!0,e=t)}return e=e.replace(/\n$/,"")+"\n",s?'<pre><code class="'+this.options.langPrefix+a(s)+'">'+(n?e:a(e,!0))+"</code></pre>\n":"<pre><code>"+(n?e:a(e,!0))+"</code></pre>\n"}blockquote(e){return`<blockquote>\n${e}</blockquote>\n`}html(e){return e}heading(e,t,n,s){if(this.options.headerIds){return`<h${t} id="${this.options.headerPrefix+s.slug(n)}">${e}</h${t}>\n`}return`<h${t}>${e}</h${t}>\n`}hr(){return this.options.xhtml?"<hr/>\n":"<hr>\n"}list(e,t,n){const s=t?"ol":"ul";return"<"+s+(t&&1!==n?' start="'+n+'"':"")+">\n"+e+"</"+s+">\n"}listitem(e){return`<li>${e}</li>\n`}checkbox(e){return"<input "+(e?'checked="" ':"")+'disabled="" type="checkbox"'+(this.options.xhtml?" /":"")+"> "}paragraph(e){return`<p>${e}</p>\n`}table(e,t){return t&&(t=`<tbody>${t}</tbody>`),"<table>\n<thead>\n"+e+"</thead>\n"+t+"</table>\n"}tablerow(e){return`<tr>\n${e}</tr>\n`}tablecell(e,t){const n=t.header?"th":"td";return(t.align?`<${n} align="${t.align}">`:`<${n}>`)+e+`</${n}>\n`}strong(e){return`<strong>${e}</strong>`}em(e){return`<em>${e}</em>`}codespan(e){return`<code>${e}</code>`}br(){return this.options.xhtml?"<br/>":"<br>"}del(e){return`<del>${e}</del>`}link(e,t,n){if(null===(e=f(this.options.sanitize,this.options.baseUrl,e)))return n;let s='<a href="'+e+'"';return t&&(s+=' title="'+t+'"'),s+=">"+n+"</a>",s}image(e,t,n){if(null===(e=f(this.options.sanitize,this.options.baseUrl,e)))return n;let s=`<img src="${e}" alt="${n}"`;return t&&(s+=` title="${t}"`),s+=this.options.xhtml?"/>":">",s}text(e){return e}}class q{strong(e){return e}em(e){return e}codespan(e){return e}del(e){return e}html(e){return e}text(e){return e}link(e,t,n){return""+n}image(e,t,n){return""+n}br(){return""}}class L{constructor(){this.seen={}}serialize(e){return e.toLowerCase().trim().replace(/<[!\/a-z].*?>/gi,"").replace(/[\u2000-\u206F\u2E00-\u2E7F\\'!"#$%&()*+,./:;<=>?@[\]^`{|}~]/g,"").replace(/\s/g,"-")}getNextSafeSlug(e,t){let n=e,s=0;if(this.seen.hasOwnProperty(n)){s=this.seen[e];do{s++,n=e+"-"+s}while(this.seen.hasOwnProperty(n))}return t||(this.seen[e]=s,this.seen[n]=0),n}slug(e,t={}){const n=this.serialize(e);return this.getNextSafeSlug(n,t.dryrun)}}class C{constructor(e){this.options=e||t,this.options.renderer=this.options.renderer||new I,this.renderer=this.options.renderer,this.renderer.options=this.options,this.textRenderer=new q,this.slugger=new L}static parse(e,t){return new C(t).parse(e)}static parseInline(e,t){return new C(t).parseInline(e)}parse(e,t=!0){let n,s,r,i,l,o,a,c,p,u,g,d,f,k,x,m,b,w,_,y="";const $=e.length;for(n=0;n<$;n++)if(u=e[n],this.options.extensions&&this.options.extensions.renderers&&this.options.extensions.renderers[u.type]&&(_=this.options.extensions.renderers[u.type].call({parser:this},u),!1!==_||!["space","hr","heading","code","table","blockquote","list","html","paragraph","text"].includes(u.type)))y+=_||"";else switch(u.type){case"space":continue;case"hr":y+=this.renderer.hr();continue;case"heading":y+=this.renderer.heading(this.parseInline(u.tokens),u.depth,h(this.parseInline(u.tokens,this.textRenderer)),this.slugger);continue;case"code":y+=this.renderer.code(u.text,u.lang,u.escaped);continue;case"table":for(c="",a="",i=u.header.length,s=0;s<i;s++)a+=this.renderer.tablecell(this.parseInline(u.header[s].tokens),{header:!0,align:u.align[s]});for(c+=this.renderer.tablerow(a),p="",i=u.rows.length,s=0;s<i;s++){for(o=u.rows[s],a="",l=o.length,r=0;r<l;r++)a+=this.renderer.tablecell(this.parseInline(o[r].tokens),{header:!1,align:u.align[r]});p+=this.renderer.tablerow(a)}y+=this.renderer.table(c,p);continue;case"blockquote":p=this.parse(u.tokens),y+=this.renderer.blockquote(p);continue;case"list":for(g=u.ordered,d=u.start,f=u.loose,i=u.items.length,p="",s=0;s<i;s++)x=u.items[s],m=x.checked,b=x.task,k="",x.task&&(w=this.renderer.checkbox(m),f?x.tokens.length>0&&"paragraph"===x.tokens[0].type?(x.tokens[0].text=w+" 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s}R._punctuation="!\"#$%&'()+\\-.,/:;<=>?@\\[\\]`^{|}~",R.punctuation=u(R.punctuation).replace(/punctuation/g,R._punctuation).getRegex(),R.blockSkip=/\[[^\]]*?\]\([^\)]*?\)|`[^`]*?`|<[^>]*?>/g,R.escapedEmSt=/(?:^|[^\\])(?:\\\\)*\\[*_]/g,R._comment=u(T._comment).replace("(?:--\x3e|$)","--\x3e").getRegex(),R.emStrong.lDelim=u(R.emStrong.lDelim).replace(/punct/g,R._punctuation).getRegex(),R.emStrong.rDelimAst=u(R.emStrong.rDelimAst,"g").replace(/punct/g,R._punctuation).getRegex(),R.emStrong.rDelimUnd=u(R.emStrong.rDelimUnd,"g").replace(/punct/g,R._punctuation).getRegex(),R._escapes=/\\([!"#$%&'()*+,\-./:;<=>?@\[\]\\^_`{|}~])/g,R._scheme=/[a-zA-Z][a-zA-Z0-9+.-]{1,31}/,R._email=/[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+(@)[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)+(?![-_])/,R.autolink=u(R.autolink).replace("scheme",R._scheme).replace("email",R._email).getRegex(),R._attribute=/\s+[a-zA-Z:_][\w.:-]*(?:\s*=\s*"[^"]*"|\s*=\s*'[^']*'|\s*=\s*[^\s"'=<>`]+)?/,R.tag=u(R.tag).replace("comment",R._comment).replace("attribute",R._attribute).getRegex(),R._label=/(?:\[(?:\\.|[^\[\]\\])*\]|\\.|`[^`]*`|[^\[\]\\`])*?/,R._href=/<(?:\\.|[^\n<>\\])+>|[^\s\x00-\x1f]*/,R._title=/"(?:\\"?|[^"\\])*"|'(?:\\'?|[^'\\])*'|\((?:\\\)?|[^)\\])*\)/,R.link=u(R.link).replace("label",R._label).replace("href",R._href).replace("title",R._title).getRegex(),R.reflink=u(R.reflink).replace("label",R._label).replace("ref",T._label).getRegex(),R.nolink=u(R.nolink).replace("ref",T._label).getRegex(),R.reflinkSearch=u(R.reflinkSearch,"g").replace("reflink",R.reflink).replace("nolink",R.nolink).getRegex(),R.normal={...R},R.pedantic={...R.normal,strong:{start:/^__|\*\*/,middle:/^__(?=\S)([\s\S]*?\S)__(?!_)|^\*\*(?=\S)([\s\S]*?\S)\*\*(?!\*)/,endAst:/\*\*(?!\*)/g,endUnd:/__(?!_)/g},em:{start:/^_|\*/,middle:/^()\*(?=\S)([\s\S]*?\S)\*(?!\*)|^_(?=\S)([\s\S]*?\S)_(?!_)/,endAst:/\*(?!\*)/g,endUnd:/_(?!_)/g},link:u(/^!?\[(label)\]\((.*?)\)/).replace("label",R._label).getRegex(),reflink:u(/^!?\[(label)\]\s*\[([^\]]*)\]/).replace("label",R._label).getRegex()},R.gfm={...R.normal,escape:u(R.escape).replace("])","~|])").getRegex(),_extended_email:/[A-Za-z0-9._+-]+(@)[a-zA-Z0-9-_]+(?:\.[a-zA-Z0-9-_]*[a-zA-Z0-9])+(?![-_])/,url:/^((?:ftp|https?):\/\/|www\.)(?:[a-zA-Z0-9\-]+\.?)+[^\s<]*|^email/,_backpedal:/(?:[^?!.,:;*_'"~()&]+|\([^)]*\)|&(?![a-zA-Z0-9]+;$)|[?!.,:;*_'"~)]+(?!$))+/,del:/^(~~?)(?=[^\s~])([\s\S]*?[^\s~])\1(?=[^~]|$)/,text:/^([`~]+|[^`~])(?:(?= {2,}\n)|(?=[a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-]+@)|[\s\S]*?(?:(?=[\\<!\[`*~_]|\b_|https?:\/\/|ftp:\/\/|www\.|$)|[^ ](?= {2,}\n)|[^a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-](?=[a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-]+@)))/},R.gfm.url=u(R.gfm.url,"i").replace("email",R.gfm._extended_email).getRegex(),R.breaks={...R.gfm,br:u(R.br).replace("{2,}","*").getRegex(),text:u(R.gfm.text).replace("\\b_","\\b_| {2,}\\n").replace(/\{2,\}/g,"*").getRegex()};class v{constructor(e){this.tokens=[],this.tokens.links=Object.create(null),this.options=e||t,this.options.tokenizer=this.options.tokenizer||new S,this.tokenizer=this.options.tokenizer,this.tokenizer.options=this.options,this.tokenizer.lexer=this,this.inlineQueue=[],this.state={inLink:!1,inRawBlock:!1,top:!0};const n={block:T.normal,inline:R.normal};this.options.pedantic?(n.block=T.pedantic,n.inline=R.pedantic):this.options.gfm&&(n.block=T.gfm,this.options.breaks?n.inline=R.breaks:n.inline=R.gfm),this.tokenizer.rules=n}static get rules(){return{block:T,inline:R}}static lex(e,t){return new v(t).lex(e)}static lexInline(e,t){return new v(t).inlineTokens(e)}lex(e){let t;for(e=e.replace(/\r\n|\r/g,"\n"),this.blockTokens(e,this.tokens);t=this.inlineQueue.shift();)this.inlineTokens(t.src,t.tokens);return this.tokens}blockTokens(e,t=[]){let n,s,r,i;for(e=this.options.pedantic?e.replace(/\t/g," ").replace(/^ +$/gm,""):e.replace(/^( *)(\t+)/gm,((e,t,n)=>t+" ".repeat(n.length)));e;)if(!(this.options.extensions&&this.options.extensions.block&&this.options.extensions.block.some((s=>!!(n=s.call({lexer:this},e,t))&&(e=e.substring(n.raw.length),t.push(n),!0)))))if(n=this.tokenizer.space(e))e=e.substring(n.raw.length),1===n.raw.length&&t.length>0?t[t.length-1].raw+="\n":t.push(n);else if(n=this.tokenizer.code(e))e=e.substring(n.raw.length),s=t[t.length-1],!s||"paragraph"!==s.type&&"text"!==s.type?t.push(n):(s.raw+="\n"+n.raw,s.text+="\n"+n.text,this.inlineQueue[this.inlineQueue.length-1].src=s.text);else if(n=this.tokenizer.fences(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.heading(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.hr(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.blockquote(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.list(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.html(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.def(e))e=e.substring(n.raw.length),s=t[t.length-1],!s||"paragraph"!==s.type&&"text"!==s.type?this.tokens.links[n.tag]||(this.tokens.links[n.tag]={href:n.href,title:n.title}):(s.raw+="\n"+n.raw,s.text+="\n"+n.raw,this.inlineQueue[this.inlineQueue.length-1].src=s.text);else if(n=this.tokenizer.table(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.lheading(e))e=e.substring(n.raw.length),t.push(n);else{if(r=e,this.options.extensions&&this.options.extensions.startBlock){let t=1/0;const n=e.slice(1);let s;this.options.extensions.startBlock.forEach((function(e){s=e.call({lexer:this},n),"number"==typeof s&&s>=0&&(t=Math.min(t,s))})),t<1/0&&t>=0&&(r=e.substring(0,t+1))}if(this.state.top&&(n=this.tokenizer.paragraph(r)))s=t[t.length-1],i&&"paragraph"===s.type?(s.raw+="\n"+n.raw,s.text+="\n"+n.text,this.inlineQueue.pop(),this.inlineQueue[this.inlineQueue.length-1].src=s.text):t.push(n),i=r.length!==e.length,e=e.substring(n.raw.length);else if(n=this.tokenizer.text(e))e=e.substring(n.raw.length),s=t[t.length-1],s&&"text"===s.type?(s.raw+="\n"+n.raw,s.text+="\n"+n.text,this.inlineQueue.pop(),this.inlineQueue[this.inlineQueue.length-1].src=s.text):t.push(n);else if(e){const t="Infinite loop on byte: "+e.charCodeAt(0);if(this.options.silent){console.error(t);break}throw new Error(t)}}return this.state.top=!0,t}inline(e,t=[]){return this.inlineQueue.push({src:e,tokens:t}),t}inlineTokens(e,t=[]){let n,s,r,i,l,o,a=e;if(this.tokens.links){const e=Object.keys(this.tokens.links);if(e.length>0)for(;null!=(i=this.tokenizer.rules.inline.reflinkSearch.exec(a));)e.includes(i[0].slice(i[0].lastIndexOf("[")+1,-1))&&(a=a.slice(0,i.index)+"["+$("a",i[0].length-2)+"]"+a.slice(this.tokenizer.rules.inline.reflinkSearch.lastIndex))}for(;null!=(i=this.tokenizer.rules.inline.blockSkip.exec(a));)a=a.slice(0,i.index)+"["+$("a",i[0].length-2)+"]"+a.slice(this.tokenizer.rules.inline.blockSkip.lastIndex);for(;null!=(i=this.tokenizer.rules.inline.escapedEmSt.exec(a));)a=a.slice(0,i.index+i[0].length-2)+"++"+a.slice(this.tokenizer.rules.inline.escapedEmSt.lastIndex),this.tokenizer.rules.inline.escapedEmSt.lastIndex--;for(;e;)if(l||(o=""),l=!1,!(this.options.extensions&&this.options.extensions.inline&&this.options.extensions.inline.some((s=>!!(n=s.call({lexer:this},e,t))&&(e=e.substring(n.raw.length),t.push(n),!0)))))if(n=this.tokenizer.escape(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.tag(e))e=e.substring(n.raw.length),s=t[t.length-1],s&&"text"===n.type&&"text"===s.type?(s.raw+=n.raw,s.text+=n.text):t.push(n);else if(n=this.tokenizer.link(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.reflink(e,this.tokens.links))e=e.substring(n.raw.length),s=t[t.length-1],s&&"text"===n.type&&"text"===s.type?(s.raw+=n.raw,s.text+=n.text):t.push(n);else if(n=this.tokenizer.emStrong(e,a,o))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.codespan(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.br(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.del(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.autolink(e,E))e=e.substring(n.raw.length),t.push(n);else if(this.state.inLink||!(n=this.tokenizer.url(e,E))){if(r=e,this.options.extensions&&this.options.extensions.startInline){let t=1/0;const n=e.slice(1);let s;this.options.extensions.startInline.forEach((function(e){s=e.call({lexer:this},n),"number"==typeof s&&s>=0&&(t=Math.min(t,s))})),t<1/0&&t>=0&&(r=e.substring(0,t+1))}if(n=this.tokenizer.inlineText(r,A))e=e.substring(n.raw.length),"_"!==n.raw.slice(-1)&&(o=n.raw.slice(-1)),l=!0,s=t[t.length-1],s&&"text"===s.type?(s.raw+=n.raw,s.text+=n.text):t.push(n);else if(e){const t="Infinite loop on byte: "+e.charCodeAt(0);if(this.options.silent){console.error(t);break}throw new Error(t)}}else e=e.substring(n.raw.length),t.push(n);return t}}class I{constructor(e){this.options=e||t}code(e,t,n){const s=(t||"").match(/\S*/)[0];if(this.options.highlight){const t=this.options.highlight(e,s);null!=t&&t!==e&&(n=!0,e=t)}return e=e.replace(/\n$/,"")+"\n",s?'<pre><code class="'+this.options.langPrefix+a(s)+'">'+(n?e:a(e,!0))+"</code></pre>\n":"<pre><code>"+(n?e:a(e,!0))+"</code></pre>\n"}blockquote(e){return`<blockquote>\n${e}</blockquote>\n`}html(e){return e}heading(e,t,n,s){if(this.options.headerIds){return`<h${t} id="${this.options.headerPrefix+s.slug(n)}">${e}</h${t}>\n`}return`<h${t}>${e}</h${t}>\n`}hr(){return this.options.xhtml?"<hr/>\n":"<hr>\n"}list(e,t,n){const s=t?"ol":"ul";return"<"+s+(t&&1!==n?' start="'+n+'"':"")+">\n"+e+"</"+s+">\n"}listitem(e){return`<li>${e}</li>\n`}checkbox(e){return"<input "+(e?'checked="" ':"")+'disabled="" type="checkbox"'+(this.options.xhtml?" /":"")+"> "}paragraph(e){return`<p>${e}</p>\n`}table(e,t){return t&&(t=`<tbody>${t}</tbody>`),"<table>\n<thead>\n"+e+"</thead>\n"+t+"</table>\n"}tablerow(e){return`<tr>\n${e}</tr>\n`}tablecell(e,t){const n=t.header?"th":"td";return(t.align?`<${n} align="${t.align}">`:`<${n}>`)+e+`</${n}>\n`}strong(e){return`<strong>${e}</strong>`}em(e){return`<em>${e}</em>`}codespan(e){return`<code>${e}</code>`}br(){return this.options.xhtml?"<br/>":"<br>"}del(e){return`<del>${e}</del>`}link(e,t,n){if(null===(e=f(this.options.sanitize,this.options.baseUrl,e)))return n;let s='<a href="'+e+'"';return t&&(s+=' title="'+t+'"'),s+=">"+n+"</a>",s}image(e,t,n){if(null===(e=f(this.options.sanitize,this.options.baseUrl,e)))return n;let s=`<img src="${e}" alt="${n}"`;return t&&(s+=` title="${t}"`),s+=this.options.xhtml?"/>":">",s}text(e){return e}}class q{strong(e){return e}em(e){return e}codespan(e){return e}del(e){return e}html(e){return e}text(e){return e}link(e,t,n){return""+n}image(e,t,n){return""+n}br(){return""}}class L{constructor(){this.seen={}}serialize(e){return e.toLowerCase().trim().replace(/<[!\/a-z].*?>/gi,"").replace(/[\u2000-\u206F\u2E00-\u2E7F\\'!"#$%&()*+,./:;<=>?@[\]^`{|}~]/g,"").replace(/\s/g,"-")}getNextSafeSlug(e,t){let n=e,s=0;if(this.seen.hasOwnProperty(n)){s=this.seen[e];do{s++,n=e+"-"+s}while(this.seen.hasOwnProperty(n))}return t||(this.seen[e]=s,this.seen[n]=0),n}slug(e,t={}){const n=this.serialize(e);return this.getNextSafeSlug(n,t.dryrun)}}class C{constructor(e){this.options=e||t,this.options.renderer=this.options.renderer||new I,this.renderer=this.options.renderer,this.renderer.options=this.options,this.textRenderer=new q,this.slugger=new L}static parse(e,t){return new C(t).parse(e)}static parseInline(e,t){return new C(t).parseInline(e)}parse(e,t=!0){let n,s,r,i,l,o,a,c,p,u,g,d,f,k,x,m,b,w,y,_="";const $=e.length;for(n=0;n<$;n++)if(u=e[n],this.options.extensions&&this.options.extensions.renderers&&this.options.extensions.renderers[u.type]&&(y=this.options.extensions.renderers[u.type].call({parser:this},u),!1!==y||!["space","hr","heading","code","table","blockquote","list","html","paragraph","text"].includes(u.type)))_+=y||"";else switch(u.type){case"space":continue;case"hr":_+=this.renderer.hr();continue;case"heading":_+=this.renderer.heading(this.parseInline(u.tokens),u.depth,h(this.parseInline(u.tokens,this.textRenderer)),this.slugger);continue;case"code":_+=this.renderer.code(u.text,u.lang,u.escaped);continue;case"table":for(c="",a="",i=u.header.length,s=0;s<i;s++)a+=this.renderer.tablecell(this.parseInline(u.header[s].tokens),{header:!0,align:u.align[s]});for(c+=this.renderer.tablerow(a),p="",i=u.rows.length,s=0;s<i;s++){for(o=u.rows[s],a="",l=o.length,r=0;r<l;r++)a+=this.renderer.tablecell(this.parseInline(o[r].tokens),{header:!1,align:u.align[r]});p+=this.renderer.tablerow(a)}_+=this.renderer.table(c,p);continue;case"blockquote":p=this.parse(u.tokens),_+=this.renderer.blockquote(p);continue;case"list":for(g=u.ordered,d=u.start,f=u.loose,i=u.items.length,p="",s=0;s<i;s++)x=u.items[s],m=x.checked,b=x.task,k="",x.task&&(w=this.renderer.checkbox(m),f?x.tokens.length>0&&"paragraph"===x.tokens[0].type?(x.tokens[0].text=w+" "+x.tokens[0].text,x.tokens[0].tokens&&x.tokens[0].tokens.length>0&&"text"===x.tokens[0].tokens[0].type&&(x.tokens[0].tokens[0].text=w+" "+x.tokens[0].tokens[0].text)):x.tokens.unshift({type:"text",text:w}):k+=w),k+=this.parse(x.tokens,f),p+=this.renderer.listitem(k,b,m);_+=this.renderer.list(p,g,d);continue;case"html":_+=this.renderer.html(u.text);continue;case"paragraph":_+=this.renderer.paragraph(this.parseInline(u.tokens));continue;case"text":for(p=u.tokens?this.parseInline(u.tokens):u.text;n+1<$&&"text"===e[n+1].type;)u=e[++n],p+="\n"+(u.tokens?this.parseInline(u.tokens):u.text);_+=t?this.renderer.paragraph(p):p;continue;default:{const e='Token with "'+u.type+'" type was not found.';if(this.options.silent)return void console.error(e);throw new Error(e)}}return _}parseInline(e,t){t=t||this.renderer;let n,s,r,i="";const l=e.length;for(n=0;n<l;n++)if(s=e[n],this.options.extensions&&this.options.extensions.renderers&&this.options.extensions.renderers[s.type]&&(r=this.options.extensions.renderers[s.type].call({parser:this},s),!1!==r||!["escape","html","link","image","strong","em","codespan","br","del","text"].includes(s.type)))i+=r||"";else switch(s.type){case"escape":case"text":i+=t.text(s.text);break;case"html":i+=t.html(s.text);break;case"link":i+=t.link(s.href,s.title,this.parseInline(s.tokens,t));break;case"image":i+=t.image(s.href,s.title,s.text);break;case"strong":i+=t.strong(this.parseInline(s.tokens,t));break;case"em":i+=t.em(this.parseInline(s.tokens,t));break;case"codespan":i+=t.codespan(s.text);break;case"br":i+=t.br();break;case"del":i+=t.del(this.parseInline(s.tokens,t));break;default:{const e='Token with "'+s.type+'" type was not found.';if(this.options.silent)return void console.error(e);throw new Error(e)}}return i}}class Z{constructor(e){this.options=e||t}static passThroughHooks=new Set(["preprocess","postprocess"]);preprocess(e){return e}postprocess(e){return e}}function M(e,t){return(n,s,r)=>{"function"==typeof s&&(r=s,s=null);const i={...s},l=function(e,t,n){return s=>{if(s.message+="\nPlease report this to https://github.com/markedjs/marked.",e){const e="<p>An error occurred:</p><pre>"+a(s.message+"",!0)+"</pre>";return t?Promise.resolve(e):n?void n(null,e):e}if(t)return Promise.reject(s);if(!n)throw s;n(s)}}((s={...P.defaults,...i}).silent,s.async,r);if(null==n)return l(new Error("marked(): input parameter is undefined or null"));if("string"!=typeof n)return l(new Error("marked(): input parameter is of type "+Object.prototype.toString.call(n)+", string expected"));if(function(e){e&&e.sanitize&&!e.silent&&console.warn("marked(): sanitize and sanitizer parameters are deprecated since version 0.7.0, should not be used and will be removed in the future. 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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; |