aditj.github.io/blog.html at master · aditj/aditj.github.io · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Blog - Adit Jain</title>
  <link rel="preconnect" href="https://fonts.googleapis.com">
  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
  <link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Sora:wght@600;700&display=swap" rel="stylesheet">
  <link rel="stylesheet" href="/style.css" />
  <script>
    // MathJax configuration: support $...$ and $$...$$
    window.MathJax = {
      tex: {
        inlineMath: [["$", "$"], ["\\(", "\\)"]],
        displayMath: [["$$", "$$"], ["\\[", "\\]"]]
      },
      options: {
        skipHtmlTags: ['script','noscript','style','textarea','pre','code']
      }
    };
  </script>
  <script id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script>
</head>
<body class="blog-page">
  <a class="skip-link" href="#main">Skip to content</a>
  <div class='background' id="background" aria-hidden="true"></div>
  <header class="site-header">
    <div class="nav container">
      <a class="brand" href="/index.html">Adit Jain</a>
      <button id="menu-toggle" class="btn btn-ghost nav-toggle" aria-controls="primary-nav" aria-expanded="false" aria-label="Toggle navigation">☰</button>
      <nav id="primary-nav" class="nav-links" aria-label="Primary">
        <a href="/index.html#publications-section">Publications</a>
        <a href="/index.html#blog-section">Blog</a>
        <a href="/index.html#decks-section">Decks</a>
        <a href="/index.html#contact">Contact</a>
        <button id="theme-toggle" class="btn btn-ghost" aria-label="Toggle theme">🌙</button>
      </nav>
    </div>
  </header>
  <main id="main">
  <div id="container" class="container">
    <a class="back-link" id="back-link" href="/index.html">← Home</a>
    <h2 id="blog-heading" class="section">Blog</h2>

    <ul id="post-list" class="blog-list"></ul>

    <article id="post-view" class="prose section" hidden>
      <h1 id="post-title" class="post-title"></h1>
      <div class="post-meta" id="post-date"></div>
      <div id="post-content"></div>
    </article>
  </div>
  </main>
  <footer id='contact' class="site-footer">
    <div class="container">
      <div class='contact-group'>
        <a aria-label="GitHub" href="https://github.com/aditj"><img width="28" height="28" src="/images/github.svg" alt="Github"></a>
        <a aria-label="Email" href="mailto:aditjain1980@gmail.com"><img width="28" height="28" src="/images/mail.png" alt="Email"></a>
        <a aria-label="LinkedIn" href="https://www.linkedin.com/in/adit-jain/"><img width="28" height="28" src="/images/linkedin.png" alt="LinkedIn"></a>
      </div>
      <div class="footer-note">Reach me</div>
    </div>
  </footer>

  <script src="/script.js"></script>
  <script src="https://cdn.jsdelivr.net/npm/marked/marked.min.js"></script>
  <script src="https://cdn.jsdelivr.net/npm/dompurify@3.1.2/dist/purify.min.js"></script>
  <script src="https://cdn.jsdelivr.net/npm/mermaid@10/dist/mermaid.min.js"></script>
  <script>
    (function() {
      function getSlug() {
        var params = new URLSearchParams(window.location.search);
        return params.get('slug');
      }

      function parseFrontMatter(md) {
        if (!md.startsWith('---')) return { meta: {}, body: md };
        var end = md.indexOf('\n---');
        if (end === -1) return { meta: {}, body: md };
        var fm = md.slice(3, end).trim();
        var body = md.slice(end + 4).trim();
        var meta = {};
        fm.split(/\r?\n/).forEach(function(line){
          var idx = line.indexOf(':');
          if (idx === -1) return;
          var key = line.slice(0, idx).trim();
          var val = line.slice(idx+1).trim();
          if ((val.startsWith('"') && val.endsWith('"')) || (val.startsWith("'") && val.endsWith("'"))) {
            val = val.slice(1, -1);
          }
          meta[key] = val;
        });
        return { meta: meta, body: body };
      }

      function toDateString(d) {
        try { return new Date(d).toLocaleDateString(undefined, { year: 'numeric', month: 'short', day: 'numeric' }); }
        catch (e) { return d || ''; }
      }

      function renderMarkdown(md) {
        var html = marked.parse(md, { mangle: false, headerIds: true });
        return DOMPurify.sanitize(html);
      }

      function showList() {
        document.getElementById('post-view').hidden = true;
        document.getElementById('post-list').hidden = false;
        var heading = document.getElementById('blog-heading');
        heading.hidden = false;
        heading.textContent = 'Blog';
        var back = document.getElementById('back-link');
        if (back) { back.href = '/index.html'; back.textContent = '← Home'; }
      }

      function showPost() {
        document.getElementById('post-list').hidden = true;
        document.getElementById('post-view').hidden = false;
        var heading = document.getElementById('blog-heading');
        heading.hidden = true;
        var back = document.getElementById('back-link');
        if (back) { back.href = '/index.html'; back.textContent = '← Home'; }
      }

      function fetchPost(slug) {
        return fetch('/posts/' + encodeURIComponent(slug) + '.md')
          .then(function(r){ if(!r.ok) throw new Error('Not found'); return r.text(); })
          .then(function(md){ return parseFrontMatter(md); });
      }

      function stripLeadingTitle(md, title) {
        if (!md) return md;
        var lines = md.replace(/^\s+/, '').split(/\r?\n/);
        if (lines.length === 0) return md;
        var first = lines[0].trim();
        // Always drop a top-level Markdown H1 to avoid duplicate titles
        if (/^#\s+/.test(first)) {
          return lines.slice(1).join('\n').replace(/^\n+/, '');
        }
        return md;
      }

      function loadPost(slug) {
        showPost();
        fetchPost(slug).then(function(res){
          var title = res.meta.title || slug;
          document.title = title + ' - Adit Jain';
          document.getElementById('post-title').textContent = title;
          document.getElementById('post-date').textContent = toDateString(res.meta.date);
          var body = stripLeadingTitle(res.body, title);
          var contentEl = document.getElementById('post-content');
          contentEl.innerHTML = renderMarkdown(body);
          // Mermaid: transform code blocks and render diagrams
          try {
            if (window.mermaid) {
              mermaid.initialize({ startOnLoad: false });
              var blocks = contentEl.querySelectorAll('pre code.language-mermaid, code.language-mermaid');
              blocks.forEach(function(code){
                var pre = code.closest('pre');
                var graph = code.textContent;
                var div = document.createElement('div');
                div.className = 'mermaid';
                div.textContent = graph;
                if (pre) {
                  pre.replaceWith(div);
                } else {
                  code.replaceWith(div);
                }
              });
              if (mermaid.run) {
                mermaid.run({ querySelector: '#post-content .mermaid' });
              } else if (mermaid.init) {
                mermaid.init(undefined, contentEl.querySelectorAll('.mermaid'));
              }
            }
          } catch (e) { console.error('Mermaid render failed', e); }
          if (window.MathJax && window.MathJax.typesetPromise) {
            window.MathJax.typesetPromise([contentEl]).catch(function(err){ console.error('MathJax typeset failed', err); });
          }
        }).catch(function(){
          document.getElementById('post-title').textContent = 'Post not found';
          document.getElementById('post-content').textContent = 'Could not load the requested post.';
        });
      }

      function asArrayOfSlugs(data) {
        if (!data) return [];
        if (Array.isArray(data) && typeof data[0] === 'string') return data;
        if (Array.isArray(data) && typeof data[0] === 'object') return data.map(function(p){ return p.slug; });
        return [];
      }

      function loadList() {
        showList();
        var list = document.getElementById('post-list');
        fetch('/data/posts.json')
          .then(function(r){ return r.json(); })
          .then(function(data){
            var slugs = asArrayOfSlugs(data);
            var loaders = slugs.map(function(slug){
              return fetchPost(slug).then(function(res){ return { slug: slug, meta: res.meta, body: res.body }; })
                .catch(function(){ return { slug: slug, meta: {}, body: '' }; });
            });
            return Promise.all(loaders);
          })
          .then(function(posts){
            // Derive fields from front matter; fallback to slug
            posts.sort(function(a,b){ return new Date(b.meta.date||0) - new Date(a.meta.date||0); });
            posts.forEach(function(p){
              var li = document.createElement('li');
              var titleLink = document.createElement('a');
              titleLink.href = '/blog.html?slug=' + encodeURIComponent(p.slug);
              var titleEl = document.createElement('strong');
              titleEl.textContent = p.meta.title || p.slug;
              titleLink.appendChild(titleEl);
              var meta = document.createElement('div');
              meta.className = 'post-meta';
              meta.textContent = toDateString(p.meta.date);
              var excerpt = document.createElement('div');
              excerpt.className = 'post-excerpt';
              excerpt.textContent = p.meta.excerpt || (p.body.split(/\n\n/)[0] || '').replace(/[#*_>`]/g, '').slice(0, 180);
              li.appendChild(titleLink);
              if (meta.textContent) li.appendChild(meta);
              if (excerpt.textContent) li.appendChild(excerpt);
              list.appendChild(li);
            });
          })
          .catch(function(){
            var li = document.createElement('li');
            li.textContent = 'No posts available yet.';
            list.appendChild(li);
          });
      }

      var slug = getSlug();
      if (slug) { loadPost(slug); } else { loadList(); }
    })();
  </script>
</body>
<!-- End blog.html -->
</html>