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The options Quarto extension allows developers to craft options that incorporate default parameters.

Usage

The options extension does not introduce significant enhancements to your document’s content. Instead, it serves as a way for authors to quickly bootstrap working with option tables through an extension embedding.

Installation

To install the options extension inside of your own extension, follow these steps:

1. Open your terminal.

2. Navigate to where your own extension’s development location is.

3. Execute the following command:

quarto add coatless-quarto/options --embed <your-extension-name>

This command will download and install the extension under the _extensions subdirectory of your Quarto extension project. If you are using version control, ensure that you include this directory in your repository.

File structure

When embedding the extension inside of your own extension, you should see the following folder structure:

.
└── _extensions
    └── <your-extension-name>
        └── _extensions
            └── coatless-quarto
                └── options

Registering the extension

Inside of the _extension.yml, please include the nested extension under filters as the first extension to run:

title: My Extension
author: My Name
version: 0.1.1
quarto-required: ">=1.4.549"
contributes:
  format:
    common:
      filters:
        - coatless-quarto/options 
        - <your-extension>.lua

Retrieving Options

Inside of the Lua filter, this extension can be used to setup:

-- Store function calls in a table value
local options = require("_extensions.coatless-quarto.options.options")

-- Attempt to retrieve option
options.tryOption(options, key)

-- Retrieve option if present, otherwise use default
options.getOption(options, key, default)