### Bug description

Quarto renders the nbdev2 `#|export` directives in Jupyter notebooks as `::: {.cell 0=‘e’ 1=‘x’ 2=‘p’ 3=‘o’ 4=‘r’ 5=‘t’}` ... `:::`. This is preventing me using nbdev2 together with my Quarto blog.

I'm running Quarto dev version from git, on Debian GNU/Linux 12 testing (bookworm).

I also tried the latest Quarto release, a previous release, and an old version from git on July 2022; and I found the same behaviour in each case.

Screenshot of notebook:

![image](https://user-images.githubusercontent.com/801764/224541784-64e2d6fa-826f-4c36-bdb9-4b8fcfeb534f.png)

Screenshot of wrong rendered HTML web page:

![image](https://user-images.githubusercontent.com/801764/224541899-dac7a0c9-6880-4746-bc96-2f5aee9c3ce6.png)

Minimal example file, quarto_export.ipynb:

```json
{
 "cells": [
  {
   "cell_type": "raw",
   "id": "f360288e-bb2e-4bd7-9120-a313b9b0f6b5",
   "metadata": {},
   "source": [
    "---\n",
    "title: \"quarto renders #|export wrongly\"\n",
    "---"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "b38565d2-0b01-4e99-9b3f-4c97250d12c3",
   "metadata": {},
   "outputs": [],
   "source": [
    "#|export\n",
    "print(\"Hello, world\")"
   ]
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "python3",
   "language": "python",
   "name": "python3"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 5
}
```

Then when I run:

```
$ quarto render quarto_export.ipynb
pandoc 
  to: html
  output-file: quarto_export.html
  standalone: true
  section-divs: true
  html-math-method: mathjax
  wrap: none
  default-image-extension: png
  
metadata
  document-css: false
  link-citations: true
  date-format: long
  lang: en
  title: 'quarto renders #|export wrongly'
```

I get this HTML output, text dump of the HTML:

```
$ lynx -dump quarto_export.html 
quarto renders #|export wrongly

   ::: {.cell 0=‘e’ 1=‘x’ 2=‘p’ 3=‘o’ 4=‘r’ 5=‘t’}
print("Hello, world")(BUTTON)

   :::

References

   Visible links:

   Hidden links:
   2. file://localhost/home/sam/ai/bugs/quarto_export.html#cb1-1
```

The wrong part of the HTML:
```html
<p>::: {.cell 0=‘e’ 1=‘x’ 2=‘p’ 3=‘o’ 4=‘r’ 5=‘t’}</p>
<div class="sourceCode cell-code" id="cb1"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="bu">print</span>(<span class="st">"Hello, world"</span>)</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
<p>:::</p>
```

Full HTML:

```html
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head>

<meta charset="utf-8">
<meta name="generator" content="quarto-99.9.9">

<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">


<title>quarto renders #|export wrongly</title>
<style>
code{white-space: pre-wrap;}
span.smallcaps{font-variant: small-caps;}
div.columns{display: flex; gap: min(4vw, 1.5em);}
div.column{flex: auto; overflow-x: auto;}
div.hanging-indent{margin-left: 1.5em; text-indent: -1.5em;}
ul.task-list{list-style: none;}
ul.task-list li input[type="checkbox"] {
  width: 0.8em;
  margin: 0 0.8em 0.2em -1em; /* quarto-specific, see https://github.com/quarto-dev/quarto-cli/issues/4556 */ 
  vertical-align: middle;
}
/* CSS for syntax highlighting */
pre > code.sourceCode { white-space: pre; position: relative; }
pre > code.sourceCode > span { display: inline-block; line-height: 1.25; }
pre > code.sourceCode > span:empty { height: 1.2em; }
.sourceCode { overflow: visible; }
code.sourceCode > span { color: inherit; text-decoration: inherit; }
div.sourceCode { margin: 1em 0; }
pre.sourceCode { margin: 0; }
@media screen {
div.sourceCode { overflow: auto; }
}
@media print {
pre > code.sourceCode { white-space: pre-wrap; }
pre > code.sourceCode > span { text-indent: -5em; padding-left: 5em; }
}
pre.numberSource code
  { counter-reset: source-line 0; }
pre.numberSource code > span
  { position: relative; left: -4em; counter-increment: source-line; }
pre.numberSource code > span > a:first-child::before
  { content: counter(source-line);
    position: relative; left: -1em; text-align: right; vertical-align: baseline;
    border: none; display: inline-block;
    -webkit-touch-callout: none; -webkit-user-select: none;
    -khtml-user-select: none; -moz-user-select: none;
    -ms-user-select: none; user-select: none;
    padding: 0 4px; width: 4em;
  }
pre.numberSource { margin-left: 3em;  padding-left: 4px; }
div.sourceCode
  {   }
@media screen {
pre > code.sourceCode > span > a:first-child::before { text-decoration: underline; }
}
</style>


<script src="quarto_export_files/libs/clipboard/clipboard.min.js"></script>
<script src="quarto_export_files/libs/quarto-html/quarto.js"></script>
<script src="quarto_export_files/libs/quarto-html/popper.min.js"></script>
<script src="quarto_export_files/libs/quarto-html/tippy.umd.min.js"></script>
<script src="quarto_export_files/libs/quarto-html/anchor.min.js"></script>
<link href="quarto_export_files/libs/quarto-html/tippy.css" rel="stylesheet">
<link href="quarto_export_files/libs/quarto-html/quarto-syntax-highlighting.css" rel="stylesheet" id="quarto-text-highlighting-styles">
<script src="quarto_export_files/libs/bootstrap/bootstrap.min.js"></script>
<link href="quarto_export_files/libs/bootstrap/bootstrap-icons.css" rel="stylesheet">
<link href="quarto_export_files/libs/bootstrap/bootstrap.min.css" rel="stylesheet" id="quarto-bootstrap" data-mode="light">


</head>

<body class="fullcontent">

<div id="quarto-content" class="page-columns page-rows-contents page-layout-article">

<main class="content" id="quarto-document-content">

<header id="title-block-header" class="quarto-title-block default">
<div class="quarto-title">
<h1 class="title">quarto renders #|export wrongly</h1>
</div>



<div class="quarto-title-meta">

    
  
    
  </div>
  

</header>

<p>::: {.cell 0=‘e’ 1=‘x’ 2=‘p’ 3=‘o’ 4=‘r’ 5=‘t’}</p>
<div class="sourceCode cell-code" id="cb1"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="bu">print</span>(<span class="st">"Hello, world"</span>)</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
<p>:::</p>

</main>
<!-- /main column -->
<script id="quarto-html-after-body" type="application/javascript">
window.document.addEventListener("DOMContentLoaded", function (event) {
  const toggleBodyColorMode = (bsSheetEl) => {
    const mode = bsSheetEl.getAttribute("data-mode");
    const bodyEl = window.document.querySelector("body");
    if (mode === "dark") {
      bodyEl.classList.add("quarto-dark");
      bodyEl.classList.remove("quarto-light");
    } else {
      bodyEl.classList.add("quarto-light");
      bodyEl.classList.remove("quarto-dark");
    }
  }
  const toggleBodyColorPrimary = () => {
    const bsSheetEl = window.document.querySelector("link#quarto-bootstrap");
    if (bsSheetEl) {
      toggleBodyColorMode(bsSheetEl);
    }
  }
  toggleBodyColorPrimary();  
  const icon = "";
  const anchorJS = new window.AnchorJS();
  anchorJS.options = {
    placement: 'right',
    icon: icon
  };
  anchorJS.add('.anchored');
  const isCodeAnnotation = (el) => {
    for (const clz of el.classList) {
      if (clz.startsWith('code-annotation-')) {                     
        return true;
      }
    }
    return false;
  }
  const clipboard = new window.ClipboardJS('.code-copy-button', {
    text: function(trigger) {
      const codeEl = trigger.previousElementSibling.cloneNode(true);
      for (const childEl of codeEl.children) {
        if (isCodeAnnotation(childEl)) {
          childEl.remove();
        }
      }
      return codeEl.innerText;
    }
  });
  clipboard.on('success', function(e) {
    // button target
    const button = e.trigger;
    // don't keep focus
    button.blur();
    // flash "checked"
    button.classList.add('code-copy-button-checked');
    var currentTitle = button.getAttribute("title");
    button.setAttribute("title", "Copied!");
    let tooltip;
    if (window.bootstrap) {
      button.setAttribute("data-bs-toggle", "tooltip");
      button.setAttribute("data-bs-placement", "left");
      button.setAttribute("data-bs-title", "Copied!");
      tooltip = new bootstrap.Tooltip(button, 
        { trigger: "manual", 
          customClass: "code-copy-button-tooltip",
          offset: [0, -8]});
      tooltip.show();    
    }
    setTimeout(function() {
      if (tooltip) {
        tooltip.hide();
        button.removeAttribute("data-bs-title");
        button.removeAttribute("data-bs-toggle");
        button.removeAttribute("data-bs-placement");
      }
      button.setAttribute("title", currentTitle);
      button.classList.remove('code-copy-button-checked');
    }, 1000);
    // clear code selection
    e.clearSelection();
  });
  function tippyHover(el, contentFn) {
    const config = {
      allowHTML: true,
      content: contentFn,
      maxWidth: 500,
      delay: 100,
      arrow: false,
      appendTo: function(el) {
          return el.parentElement;
      },
      interactive: true,
      interactiveBorder: 10,
      theme: 'quarto',
      placement: 'bottom-start'
    };
    window.tippy(el, config); 
  }
  const noterefs = window.document.querySelectorAll('a[role="doc-noteref"]');
  for (var i=0; i<noterefs.length; i++) {
    const ref = noterefs[i];
    tippyHover(ref, function() {
      // use id or data attribute instead here
      let href = ref.getAttribute('data-footnote-href') || ref.getAttribute('href');
      try { href = new URL(href).hash; } catch {}
      const id = href.replace(/^#\/?/, "");
      const note = window.document.getElementById(id);
      return note.innerHTML;
    });
  }
      let selectedAnnoteEl;
      const selectorForAnnotation = ( cell, annotation) => {
        let cellAttr = 'data-code-cell="' + cell + '"';
        let lineAttr = 'data-code-annotation="' +  annotation + '"';
        const selector = 'span[' + cellAttr + '][' + lineAttr + ']';
        return selector;
      }
      const selectCodeLines = (annoteEl) => {
        const doc = window.document;
        const targetCell = annoteEl.getAttribute("data-target-cell");
        const targetAnnotation = annoteEl.getAttribute("data-target-annotation");
        const annoteSpan = window.document.querySelector(selectorForAnnotation(targetCell, targetAnnotation));
        const lines = annoteSpan.getAttribute("data-code-lines").split(",");
        const lineIds = lines.map((line) => {
          return targetCell + "-" + line;
        })
        let top = null;
        let height = null;
        let parent = null;
        if (lineIds.length > 0) {
            //compute the position of the single el (top and bottom and make a div)
            const el = window.document.getElementById(lineIds[0]);
            top = el.offsetTop;
            height = el.offsetHeight;
            parent = el.parentElement.parentElement;
          if (lineIds.length > 1) {
            const lastEl = window.document.getElementById(lineIds[lineIds.length - 1]);
            const bottom = lastEl.offsetTop + lastEl.offsetHeight;
            height = bottom - top;
          }
          if (top !== null && height !== null && parent !== null) {
            // cook up a div (if necessary) and position it 
            let div = window.document.getElementById("code-annotation-line-highlight");
            if (div === null) {
              div = window.document.createElement("div");
              div.setAttribute("id", "code-annotation-line-highlight");
              div.style.position = 'absolute';
              parent.appendChild(div);
            }
            div.style.top = top - 2 + "px";
            div.style.height = height + 4 + "px";
            let gutterDiv = window.document.getElementById("code-annotation-line-highlight-gutter");
            if (gutterDiv === null) {
              gutterDiv = window.document.createElement("div");
              gutterDiv.setAttribute("id", "code-annotation-line-highlight-gutter");
              gutterDiv.style.position = 'absolute';
              const codeCell = window.document.getElementById(targetCell);
              const gutter = codeCell.querySelector('.code-annotation-gutter');
              gutter.appendChild(gutterDiv);
            }
            gutterDiv.style.top = top - 2 + "px";
            gutterDiv.style.height = height + 4 + "px";
          }
          selectedAnnoteEl = annoteEl;
        }
      };
      const unselectCodeLines = () => {
        const elementsIds = ["code-annotation-line-highlight", "code-annotation-line-highlight-gutter"];
        elementsIds.forEach((elId) => {
          const div = window.document.getElementById(elId);
          if (div) {
            div.remove();
          }
        });
        selectedAnnoteEl = undefined;
      };
      // Attach click handler to the DT
      const annoteDls = window.document.querySelectorAll('dt[data-target-cell]');
      for (const annoteDlNode of annoteDls) {
        annoteDlNode.addEventListener('click', (event) => {
          const clickedEl = event.target;
          if (clickedEl !== selectedAnnoteEl) {
            unselectCodeLines();
            const activeEl = window.document.querySelector('dt[data-target-cell].code-annotation-active');
            if (activeEl) {
              activeEl.classList.remove('code-annotation-active');
            }
            selectCodeLines(clickedEl);
            clickedEl.classList.add('code-annotation-active');
          } else {
            // Unselect the line
            unselectCodeLines();
            clickedEl.classList.remove('code-annotation-active');
          }
        });
      }
  const findCites = (el) => {
    const parentEl = el.parentElement;
    if (parentEl) {
      const cites = parentEl.dataset.cites;
      if (cites) {
        return {
          el,
          cites: cites.split(' ')
        };
      } else {
        return findCites(el.parentElement)
      }
    } else {
      return undefined;
    }
  };
  var bibliorefs = window.document.querySelectorAll('a[role="doc-biblioref"]');
  for (var i=0; i<bibliorefs.length; i++) {
    const ref = bibliorefs[i];
    const citeInfo = findCites(ref);
    if (citeInfo) {
      tippyHover(citeInfo.el, function() {
        var popup = window.document.createElement('div');
        citeInfo.cites.forEach(function(cite) {
          var citeDiv = window.document.createElement('div');
          citeDiv.classList.add('hanging-indent');
          citeDiv.classList.add('csl-entry');
          var biblioDiv = window.document.getElementById('ref-' + cite);
          if (biblioDiv) {
            citeDiv.innerHTML = biblioDiv.innerHTML;
          }
          popup.appendChild(citeDiv);
        });
        return popup.innerHTML;
      });
    }
  }
});
</script>
</div> <!-- /content -->



</body></html>
```

A similar slightly larger example:
https://github.com/sswam/ai/blob/main/blog/posts/nbdev_vs_quarto/nbdev_vs_quarto.ipynb
The rendered HTML:
https://sam.ucm.dev/blog/posts/nbdev_vs_quarto/nbdev_vs_quarto.html

### Checklist

- [X] Please include a minimal, fully reproducible example in a single .qmd file? Please provide the whole file rather than the snippet you believe is causing the issue.
- [X] Please [format your issue](https://quarto.org/bug-reports.html#formatting-make-githubs-markdown-work-for-us) so it is easier for us to read the bug report.
- [X] Please document the RStudio IDE version you're running (if applicable), by providing the value displayed in the "About RStudio" main menu dialog?
- [X] Please document the operating system you're running. If on Linux, please provide the specific distribution.
2023-03-12T11:39:54Z
sswam
bug duplicate
closed
quarto renders nbdev #|export directives in Jupyter notebook as ::: {.cell 0=‘e’ 1=‘x’ 2=‘p’ 3=‘o’ 4=‘r’ 5=‘t’}
https://github.com/quarto-dev/quarto-cli/issues/4777