[Feature]: Rendering pseudocode in math blocks

[thomas10011]

想要的功能 | What feature do you want?

Thanks for creating this wonderful theme. I'd like to request for a new feature of pseudocode math block rendering.

Since most of markdown editors (e.g. typora, obisidian) have supported the pseudocode code block like below:

```pseudo
    \begin{algorithm}
    \caption{Quicksort}
    \begin{algorithmic}
      \Procedure{Quicksort}{$A, p, r$}
        \If{$p < r$}
          \State $q \gets $ \Call{Partition}{$A, p, r$}
          \State \Call{Quicksort}{$A, p, q - 1$}
          \State \Call{Quicksort}{$A, q + 1, r$}
        \EndIf
      \EndProcedure
      \Procedure{Partition}{$A, p, r$}
        \State $x \gets A[r]$
        \State $i \gets p - 1$
        \For{$j \gets p$ \To $r - 1$}
          \If{$A[j] < x$}
            \State $i \gets i + 1$
            \State exchange
            $A[i]$ with $A[j]$
          \EndIf
        \State exchange $A[i]$ with $A[r]$
        \EndFor
      \EndProcedure
      \end{algorithmic}
    \end{algorithm}
``` /* end of code block */

We could use pseudocode.js to render it into math block, the output of this code snippet should be like:

useful reference: https://zjuguoshuai.gitlab.io/2019/04/26/blog-pseudocode.html

[jerryc127]

what is pseudocode ? mathjax ?

[thomas10011]

From wiki: https://en.wikipedia.org/wiki/Pseudocode

In computer science, pseudocode is a description of the steps in an algorithm using a mix of conventions of programming languages (like assignment operator, conditional operator, loop) with informal, usually self-explanatory, notation of actions and conditions.

Basically it's used to describe algorithm in most academic papers and books, and it's supported by latex softwares. For instance, the pseudocode in the picture I sticked above described the quick sort alogrithm. But mathjax currently can't render the pseudocode.

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