jiffdown

Inline, block, and reference extensions to Markdown

Block infostrings

• Blocks: >{block infostring} content creates a non-p block element. With no infostring, defaults to blockquote. Infostring can add classes, change tags, set IDs, and apply attributes.
• Inline blocks: {Block infostring: content} creates an inline element. With no infostring, defaults to span. Can add classes, change tags, set IDs, and apply attributes.
• Block infostring: tag #id .class [attr=value] sets the tag for the block. Appropriate tags depend on target (HTML vs Zonbook). IDs can be referenced by reference copying. Attributes and classes are supported based on the target.

Custom entities

• Entity definition: &entity: Value; Define a new entity, for instance &aws: Amazon Web Services; would expand &aws; into "Amazon Web Services"
• Entity usage: &entity; Uses an entity defined in this document, after reference copying.

Sections & Reference copying

• Sections: From Heading until the next same level heading or end of file. Sections have implicit IDs
• References: &{ref infostring: refval}; References copy the refval into place here. This is different than ![]() syntax, which links to the appropriate contet.
• Ref infostring: move|copy If copy (default), copies the content from there to here. If move, removes value from there.
• Refval: #id, ./relative_path, ./adjacent.md#id

Syntaxes

Symbol	Usage	Status
---\n\n---	yaml frontmatter	✅ (front-matter)
#, ##	Headings	✅
sections	<section>	✅
-, 1., :	List	✅
>{}	Blocks	✅
[]()	Link	✅
![]()	Image Link	✅
<br>	HTML	✅
{time:10/11/23}	Inline	✅
{img src="url"}	Image	✅
&...;	Entity	✅
&{};	Reference	✅
`	Code	✅
_, *, ~	Formatting	✅
$	Math