markdown-it-toc-done-right/dist/markdownItTocDoneRight.modern.js

Table of contents (TOC) for markdown-it markdown parser with focus on semantic and security.

function e(e){return encodeURIComponent(String(e).trim().toLowerCase().replace(/\s+/g,"-"))}function n(e){return String(e).replace(/&/g,"&amp;").replace(/"/g,"&quot;").replace(/'/g,"&#39;").replace(/</g,"&lt;").replace(/>/g,"&gt;")}export default function(t,l){let r;l=Object.assign({},{placeholder:"(\\$\\{toc\\}|\\[\\[?_?toc_?\\]?\\]|\\$\\<toc(\\{[^}]*\\})\\>)",slugify:e,uniqueSlugStartIndex:1,containerClass:"table-of-contents",containerId:void 0,listClass:void 0,itemClass:void 0,linkClass:void 0,level:1,listType:"ol",format:void 0,callback:void 0},l);const s=new RegExp("^"+l.placeholder+"$","i");t.renderer.rules.tocOpen=function(e,t){let r=Object.assign({},l);return e&&t>=0&&(r=Object.assign(r,e[t].inlineOptions)),`<nav${r.containerId?` id="${n(r.containerId)}"`:""} class="${n(r.containerClass)}">`},t.renderer.rules.tocClose=function(){return"</nav>"},t.renderer.rules.tocBody=function(e,t){let s=Object.assign({},l);e&&t>=0&&(s=Object.assign(s,e[t].inlineOptions));const c={},i=Array.isArray(s.level)?(o=s.level,e=>o.includes(e)):(e=>n=>n>=e)(s.level);var o;return function e(t){const r=s.listClass?` class="${n(s.listClass)}"`:"",o=s.itemClass?` class="${n(s.itemClass)}"`:"",a=s.linkClass?` class="${n(s.linkClass)}"`:"";if(0===t.c.length)return"";let u="";return(0===t.l||i(t.l))&&(u+=`<${n(s.listType)+r}>`),t.c.forEach(t=>{i(t.l)?u+=`<li${o}><a${a} href="#${function(e){let n=e,t=s.uniqueSlugStartIndex;for(;Object.prototype.hasOwnProperty.call(c,n);)n=`${e}-${t++}`;return c[n]=!0,n}(l.slugify(t.n))}">${"function"==typeof s.format?s.format(t.n,n):n(t.n)}</a>${e(t)}</li>`:u+=e(t)}),(0===t.l||i(t.l))&&(u+=`</${n(s.listType)}>`),u}(r)},t.core.ruler.push("generateTocAst",function(e){r=function(e){const n={l:0,n:"",c:[]},t=[n];for(let n=0,l=e.length;n<l;n++){const l=e[n];if("heading_open"===l.type){const r=e[n+1].children.filter(function(e){return"text"===e.type||"code_inline"===e.type}).reduce(function(e,n){return e+n.content},""),s={l:parseInt(l.tag.substr(1),10),n:r,c:[]};if(s.l>t[0].l)t[0].c.push(s),t.unshift(s);else if(s.l===t[0].l)t[1].c.push(s),t[0]=s;else{for(;s.l<=t[0].l;)t.shift();t[0].c.push(s),t.unshift(s)}}}return n}(e.tokens),"function"==typeof l.callback&&l.callback(t.renderer.rules.tocOpen()+t.renderer.rules.tocBody()+t.renderer.rules.tocClose(),r)}),t.block.ruler.before("heading","toc",function(e,n,t,l){let r;const c=e.src.slice(e.bMarks[n]+e.tShift[n],e.eMarks[n]).split(" ")[0];if(!s.test(c))return!1;if(l)return!0;const i=s.exec(c);let o={};if(null!==i&&3===i.length)try{o=JSON.parse(i[2])}catch(e){}return e.line=n+1,r=e.push("tocOpen","nav",1),r.markup="",r.map=[n,e.line],r.inlineOptions=o,r=e.push("tocBody","",0),r.markup="",r.map=[n,e.line],r.inlineOptions=o,r.children=[],r=e.push("tocClose","nav",-1),r.markup="",!0},{alt:["paragraph","reference","blockquote"]})}
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