code blocks are not being rendered correctly

[daangoossens22]

On the website, the code blocks are not being rendered correctly, but when it is deployed locally with mkdocs serve it is. See images below:

from https://libigl.github.io:

from localhost using mkdocs serve

From comparing the generated site in the master branch to the locally generated one, it seems that the ```cpp``` codeblocks are indeed not converted correctly. See code snippets below:

from https://libigl.github.io:

libigl.github.io/index.html

Lines 900 to 920 in 9a8f08c

	<p>```cpp</p>
	<h1 id="include">include <igl/cotmatrix.h><a class="headerlink" href="#include" title="Permanent link">&para;</a></h1>
	<h1 id="include_1">include <Eigen/Dense><a class="headerlink" href="#include_1" title="Permanent link">&para;</a></h1>
	<h1 id="include_2">include <Eigen/Sparse><a class="headerlink" href="#include_2" title="Permanent link">&para;</a></h1>
	<h1 id="include_3">include <iostream><a class="headerlink" href="#include_3" title="Permanent link">&para;</a></h1>
	<p>int main()
	{
	Eigen::MatrixXd V(4,2);
	V&lt;&lt;0,0,
	1,0,
	1,1,
	0,1;
	Eigen::MatrixXi F(2,3);
	F&lt;&lt;0,1,2,
	0,2,3;
	Eigen::SparseMatrix<double> L;
	igl::cotmatrix(V,F,L);
	std::cout&lt;&lt;&rdquo;Hello, mesh: &ldquo;&lt;&lt;std::endl&lt;&lt;L*V&lt;&lt;std::endl;
	return 0;
	}
	```</p>

from localhost using mkdocs serve

<div class="highlight"><pre><span></span><code><span class="cp">#include</span><span class="w"> </span><span class="cpf">&lt;igl/cotmatrix.h&gt;</span><span class="cp"></span>
<span class="cp">#include</span><span class="w"> </span><span class="cpf">&lt;Eigen/Dense&gt;</span><span class="cp"></span>
<span class="cp">#include</span><span class="w"> </span><span class="cpf">&lt;Eigen/Sparse&gt;</span><span class="cp"></span>
<span class="cp">#include</span><span class="w"> </span><span class="cpf">&lt;iostream&gt;</span><span class="cp"></span>
<span class="kt">int</span><span class="w"> </span><span class="nf">main</span><span class="p">()</span><span class="w"></span>
<span class="p">{</span><span class="w"></span>
<span class="w">  </span><span class="n">Eigen</span><span class="o">::</span><span class="n">MatrixXd</span><span class="w"> </span><span class="n">V</span><span class="p">(</span><span class="mi">4</span><span class="p">,</span><span class="mi">2</span><span class="p">);</span><span class="w"></span>
<span class="w">  </span><span class="n">V</span><span class="o">&lt;&lt;</span><span class="mi">0</span><span class="p">,</span><span class="mi">0</span><span class="p">,</span><span class="w"></span>
<span class="w">     </span><span class="mi">1</span><span class="p">,</span><span class="mi">0</span><span class="p">,</span><span class="w"></span>
<span class="w">     </span><span class="mi">1</span><span class="p">,</span><span class="mi">1</span><span class="p">,</span><span class="w"></span>
<span class="w">     </span><span class="mi">0</span><span class="p">,</span><span class="mi">1</span><span class="p">;</span><span class="w"></span>
<span class="w">  </span><span class="n">Eigen</span><span class="o">::</span><span class="n">MatrixXi</span><span class="w"> </span><span class="n">F</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span><span class="mi">3</span><span class="p">);</span><span class="w"></span>
<span class="w">  </span><span class="n">F</span><span class="o">&lt;&lt;</span><span class="mi">0</span><span class="p">,</span><span class="mi">1</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="w"></span>
<span class="w">     </span><span class="mi">0</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">3</span><span class="p">;</span><span class="w"></span>
<span class="w">  </span><span class="n">Eigen</span><span class="o">::</span><span class="n">SparseMatrix</span><span class="o">&lt;</span><span class="kt">double</span><span class="o">&gt;</span><span class="w"> </span><span class="n">L</span><span class="p">;</span><span class="w"></span>
<span class="w">  </span><span class="n">igl</span><span class="o">::</span><span class="n">cotmatrix</span><span class="p">(</span><span class="n">V</span><span class="p">,</span><span class="n">F</span><span class="p">,</span><span class="n">L</span><span class="p">);</span><span class="w"></span>
<span class="w">  </span><span class="n">std</span><span class="o">::</span><span class="n">cout</span><span class="o">&lt;&lt;</span><span class="s">&quot;Hello, mesh: &quot;</span><span class="o">&lt;&lt;</span><span class="n">std</span><span class="o">::</span><span class="n">endl</span><span class="o">&lt;&lt;</span><span class="n">L</span><span class="o">*</span><span class="n">V</span><span class="o">&lt;&lt;</span><span class="n">std</span><span class="o">::</span><span class="n">endl</span><span class="p">;</span><span class="w"></span>
<span class="w">  </span><span class="k">return</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"></span>
<span class="p">}</span><span class="w"></span>
</code></pre></div>

[daangoossens22]

Seems to be caused by the changes made to the conda environment in 58a301e. I probably didn't have issues locally as I just installed the necessary libraries in a python venv.

[jdumas]

Yeah the problem is caused by pygments 2.12. Pinning the dependency back to 2.11.2 should fix the issue. Should be fixed c549961.