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126 lines
5.4 KiB
Markdown
126 lines
5.4 KiB
Markdown
# Obsidian-Pseudocode
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- [Obsidian-Pseudocode](#obsidian-pseudocode)
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- [Features](#features)
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- [Future Features](#future-features)
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- [Usage](#usage)
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- [Basic](#basic)
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- [Preamble style customization](#preamble-style-customization)
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- [Use a `.sty` file](#use-a-sty-file)
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- [Use in-block preamble](#use-in-block-preamble)
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- [Supported macros](#supported-macros)
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- [Export to a compilable LaTeX file](#export-to-a-compilable-latex-file)
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- [Installation](#installation)
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- [Credits](#credits)
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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.
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## Features
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- 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.
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- Print quality: The HTML output produced by the plugin is (almost) identical with the pretty algorithms printed on publications that are typeset by LaTeX.
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- Math formula support: Inserting math formulas in the pseudocode is as easy as LaTeX. Just enclose math expression in `$...$` or `\(...\)`.
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- Auto-completion inside `pseudo` code block. (Release 1.1.0)
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- [Preamble style (macros) customization.](#preamble-style-customization) (Release 1.2.0 & 1.5.0)
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- [Export a LaTeX file that can be compiled, including any required additional macros.](#export-to-a-compilable-latex-file) (Release 1.3.0)
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### Future Features
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- [ ] Syntax highlighting.
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## Usage
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### Basic
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To use the plugin, simply create a code block in your Obsidian note and add your pseudocode inside it. Then, add the language specifier `pseudo` (short for "pseudocode") to the code block. The plugin will automatically render the pseudocode as LaTeX.
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**Rocommend: use the command `Pseudocode: Insert a new pseudocode block` to start.**
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Here is an example:
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```
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```pseudo
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\begin{algorithm}
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\caption{Quicksort}
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\begin{algorithmic}
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\Procedure{Quicksort}{$A, p, r$}
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\If{$p < r$}
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\State $q \gets $ \Call{Partition}{$A, p, r$}
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\State \Call{Quicksort}{$A, p, q - 1$}
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\State \Call{Quicksort}{$A, q + 1, r$}
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\EndIf
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\EndProcedure
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\Procedure{Partition}{$A, p, r$}
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\State $x \gets A[r]$
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\State $i \gets p - 1$
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\For{$j \gets p$ \To $r - 1$}
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\If{$A[j] < x$}
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\State $i \gets i + 1$
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\State exchange
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$A[i]$ with $A[j]$
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\EndIf
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\State exchange $A[i]$ with $A[r]$
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\EndFor
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\EndProcedure
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\end{algorithmic}
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\end{algorithm}
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```
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```
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This will be rendered as (to render line number, you need to toggle it in setting tab):
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<div align="center">
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<img src="assets/example.png" alt="example" width="70%">
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</div>
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### Preamble style customization
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#### Use a `.sty` file
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You can use a `.sty` file (actually the suffix does not matter) to customize with some macros. The plugin will locate the file according to the setting. The default path is `preamble.sty`.
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Please reload the plugin after you change the preamble file.
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#### Use in-block preamble
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You can simply write your own macros in the pseudocode block before `\begin{algorithm}`. These macros will only be applicable within this specific block.
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#### Supported macros
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Currently supported macros can be found at [this link](https://katex.org/docs/supported.html#macros) and below(might not be fully supported):
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1. `\DeclarePairedDelimiter`
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2. `\DeclareMathOperator*`
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3. `\DeclareMathOperator`
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### Export to a compilable LaTeX file
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You can easily export a compilable LaTeX file by clicking the `Export to clipboard` button at the bottom right corner for each pseudocode block. The plugin will automatically generate a compilable LaTeX file, including any required additional macros, to your clipboard.
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## Installation
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<!-- ### Install from the Community Plugins in Obsidian. -->
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:tada: The Pseudocode plugin is now available in the Community Plugins section of Obsidian. To install it, simply search for **Pseudocode** and click on the installation button.
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<!-- ### Use [BRAT](https://github.com/TfTHacker/obsidian42-brat#Quick-Guide-for-using-BRAT)
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1. Install **Obsidian-42 BRAT** from the Community Plugins in Obsidian.
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2. Open the command palette and run the command `BRAT: Add a beta plugin for testing`. Input this repo's URL `https://github.com/Yaotian-Liu/obsidian-pseudocode`.
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3. Click on **Add Plugin** -- wait a few seconds and BRAT will tell you what is going on.
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4. After BRAT confirms the installation, in Settings go to the **Community plugins** tab.
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5. Refresh the list, find `Pseudocode` and enable it.
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### Manual install
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1. Create a folder named `pseudocode-in-obs` in your Obsidian vault plugin folder (which is {Your Vault}/.obsidian/plugins).
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2. Download `main.js`, `manifest.json` and `styles.css` from the [releases page](https://github.com/yaotian-liu/obsidian-pseudocode/releases/latest), to the folder you just created in step 1.
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3. Open your Obsidian, and enable the plugin in "Community Plugins" setting page.
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4. Enjoy. -->
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<!-- ## Known Issues -->
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## Credits
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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!
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