# Obsidian-Pseudocode

This is a plugin for [Obsidian](https://obsidian.md/) that allows you to render LaTeX-style pseudocode inside a code block. The plugin is based on [pseudocode.js](https://github.com/SaswatPadhi/pseudocode.js), a JavaScript library that typesets pseudocode beautifully to HTML.

## Features

- Intuitive grammar: The plugin takes a LaTeX-style input that supports the algorithmic constructs from LaTeX's algorithm packages. With or without LaTeX experience, a user should find the grammar fairly intuitive.
- Print quality: The HTML output produced by the plugin is (almost) identical with the pretty algorithms printed on publications that are typeset by LaTeX.
- Math formula support: Inserting math formulas in the pseudocode is as easy as LaTeX. Just enclose math expression in `$...$` or `\(...\)`.

### Future Features

- [ ] Syntax highlighting.
- [x] Auto-completion inside `pcode` code block. (Release 1.1.0)

## Usage

To use the plugin, simply create a code block in your Obsidian note and add your pseudocode inside it. Then, add the language specifier `pcode` (short for "pseudocode") to the code block. The plugin will automatically render the pseudocode as LaTeX.

Here is an example:

```
    ```pcode
    \begin{algorithm}
    \caption{Quicksort}
    \begin{algorithmic}
      \PROCEDURE{Quicksort}{$A, p, r$}
        \IF{$p < r$}
          \STATE $q = $ \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 $x = A[r]$
        \STATE $i = p - 1$
        \FOR{$j = p$ \TO $r - 1$}
          \IF{$A[j] < x$}
            \STATE $i = i + 1$
            \STATE exchange
            $A[i]$ with $A[j]$
          \ENDIF
        \STATE exchange $A[i]$ with $A[r]$
        \ENDFOR
      \ENDPROCEDURE
      \end{algorithmic}
    \end{algorithm}
    ```
```

This will be rendered as:

<img src="assets/example.png" alt="example" width="70%">

## Installation

To install the plugin, download the latest release from the [releases page](https://github.com/yourusername/obsidian-pseudocode/releases) and extract it to your Obsidian plugins folder. Then, enable the plugin in your Obsidian settings.

~~Or just download it within Obsidian's community plugins.~~ (Pending...)

## Credits

This plugin is based on [pseudocode.js](https://github.com/SaswatPadhi/pseudocode.js), a JavaScript library that typesets pseudocode beautifully to HTML. Many thanks to the pseudocode.js team for their great work!