Pierre Carion

Scrippet Block enables users to write screenplay content using Markdown in Fountain syntax directly within the WordPress block editor. 
This plugin automatically converts the entered text into a properly formatted HTML page, adhering to industry standards for screenplays.
Features: 
– Fountain Syntax Support: Write your screenplay using the intuitive Fountain markup language. 
– Real-Time Preview: See the formatted screenplay as you type. 
– Easy Integration: Add the Scrippet block to any post or page.
The Fountain Markdown language was designed by <a href="https://johnaugust.com/" rel="nofollow ugc">John August</a>.

Scrippet Block

This plugin adds a block to the Gutenberg editor to render HTML Fountain-formatted screenplay snippets.

Terry L.

Generation of diagrams and flowcharts from text in a similar manner as markdown by using <a href="https://mermaid.js.org/" rel="nofollow ugc">mermaid.js</a>
WP Mermaid is smart enough that loads mermaid.js only when your posts contain Mermaid syntax, by detecting the use of shortcode and block. So it will not be loaded on your website everywhere.
= See also
If you are looking for a <a href="https://github.com/terrylinooo/githuber-md" rel="nofollow ugc">Markdown editor</a> supporting Mermaid, you can also check out my WordPress plugin called the <a href="https://wordpress.org/plugins/wp-githuber-md/" rel="ugc">WP Githuber MD</a>, which provides a variety of features not just Mermaid, it is worth to try.
<h3>Translations</h3>
Chinese (zh_TW) by <a href="https://terryl.in/" rel="nofollow ugc">Terry L.</a>. 
Japanese (ja_JP) by <a href="https://colocal.com/" rel="nofollow ugc">Colocal</a>.
<h3>Copyright</h3>
WP Mermaid, Copyright 2020 TerryL.in 
WP Mermaid is distributed under the terms of the GNU GPL
This program is free software: you can redistribute it and/or modify 
it under the terms of the GNU General Public License as published by 
the Free Software Foundation, either version 3 of the License, or 
(at your option) any later version.
This program is distributed in the hope that it will be useful, 
but WITHOUT ANY WARRANTY; without even the implied warranty of 
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 
GNU General Public License for more details.

WP Mermaid

Generation of diagrams and flowcharts from text in a similar manner as markdown by using mermaid.js

Scrippet Block vs WP Mermaid