Post content is parsed using Markless, with some special extensions. Here's a basic rundown of the Markless syntax:
**bold**
//italic//
__underline__
<-struck through->
``code``
bold
italic
underline
struck through
code
Markless is a lot more intuitive and easy to write than HTML. For example, lists:
- Some item
- Oh man more
- And a last one,
but on multiple lines!
1.Numbered lists are also possible.
2.Hop, skip, and...
10.Jump!
One of the things you will most likely want to use for text markup is links and images. Markless offers syntax for that as well:
http://example.com
"Link label"(http://example.com)
[ image http://filebox.tymoon.eu//file/TVRRNE1nPT0= ]
Markless automatically segments your code into paragraphs when an empty line is encountered, and respects line breaks where you put them.
Purplish offers a few extra syntax specialties to integrate better. The additions are greentexting, post references, and youtube embeds.
Greentext and references work as is normal for imageboards.
> greentexting in TYOOL <current year>
>>10
>>/fab/
Aside from images, audio, and video that Markless has support for out of the box, you can embed Youtube like this:
[ youtube https://www.youtube.com/watch?v=oVeMn5xBwj0 ]
For a more complete tutorial of Markless, please see the official website.