Markdown syntax highlighting in post editor

[sam (Sam Saffron)]

Discourse is now shipping an experimental WYSIWYG composer

Test our new composer on Meta!

We have been working on a new rich text editor mode for our composer so that it’s easier to write on Discourse. We’re now ready to start testing this mode out on Meta to get more feedback from our community on this feature! Our implementation builds upon the excellent ProseMirror and its non-core Markdown module, using the module’s schema, parsing, and serialization definitions as the base for further Discourse-specific features. This topic will serve as both a guide to testing the new compose…

This infra also makes it possible long term to apply syntax highlighting on markdown if we want to go down that path, it becomes a lot less necessary though with the new composer.

For example the new composer now allows you to apply syntax highlighting to code while you are typing it!