Djot
Djot
Lightweight markup language
Djot (/dʒɑt/) is a lightweight markup language that aims to improve on CommonMark's syntax where it is complex and difficult to parse efficiently.[3] It was created in 2022 by John MacFarlane, the author of Pandoc and a member of the CommonMark standardization group.[4][5]
| Filename extension |
.dj[1] |
|---|---|
| Internet media type | unknown value |
| Developed by | John MacFarlane |
| Latest release | |
| Type of format | Lightweight markup language |
| Extended from | CommonMark |
| Open format? | Yes |
| Free format? | Yes |
| Website | djot |
It derives most of its features from CommonMark, but includes a wider set of features, including description lists, footnotes, tables, several new kinds of inline formatting, math and smart punctuation.[3]
The original reference implementation is written in a scripting language (Lua), but the language is designed to parse efficiently, so it is very fast.[6]
The code and documentation are released under the MIT License.[7]
Djot's syntax is similar to CommonMark's, but there are some differences.[8]
Blank lines
CommonMark does not need blank lines around block-level elements, but Djot does.
Example:
| Input | Corresponding HTML produced by a CommonMark processor | Corresponding HTML produced by a Djot processor |
|---|---|---|
# Heading
Paragraphs.
|
<h1>Heading</h1>
<p>Paragraphs.</p>
|
<h1>Heading Paragraphs.</h1>
|
# Heading
Paragraphs.
|
<h1>Heading</h1>
<p>Paragraphs.</p>
|
<h1>Heading</h1>
<p>Paragraphs.</p>
|
| Input | Corresponding HTML produced by a CommonMark processor | Corresponding HTML produced by a Djot processor |
|---|---|---|
* fruits
* apple
* banana
|
<ul>
<li>fruits
<ul>
<li>apple</li>
<li>banana</li>
</ul>
</li>
</ul>
|
<ul>
<li>fruits
* apple
* banana
</li>
</ul>
|
* fruits
* apple
* banana
|
<ul>
<li><p>fruits</p>
<ul>
<li>apple</li>
<li>banana</li>
</ul>
</li>
</ul>
|
<ul>
<li>fruits
<ul>
<li>apple</li>
<li>banana</li>
</ul>
</li>
</ul>
|
Headings
Djot has no setext (= or -) headings, only ATX (#) headings.
Example:
| Text using CommonMark syntax | Text using Djot syntax | Corresponding HTML produced |
|---|---|---|
Heading
=======
Sub-heading
-----------
|
# Heading
## Sub-heading
|
<h1>Heading</h1>
<h2>Sub-heading</h2>
|
Emphasis
CommonMark uses single * or _ for emphasis, and double * or _ for strong emphasis. Djot uses single _ for emphasis, and single * for strong emphasis.
Example:
| Text using CommonMark syntax | Text using Djot syntax | Corresponding HTML produced |
|---|---|---|
Text attributes _italic_, **bold**.
|
Text attributes _italic_, *bold*.
|
<p>Text attributes <em>italic</em>, <strong>bold</strong>.</p>
|
Links
Unlike CommonMark, Djot has no special syntax for adding a title to a link. A title can be added by using the general attribute syntax instead.
Example:
| Text using CommonMark syntax | Text using Djot syntax | Corresponding HTML produced |
|---|---|---|
A [link](http://example.com "title").
|
A [link](http://example.com){title="title"}.
|
<p>A <a href="http://example.com" title="title">link</a>.</p>
|
| Text using Djot syntax | Corresponding HTML produced by a Djot processor | Text viewed in a browser |
|---|---|---|
# Heading
## Sub-heading
Paragraphs are separated
by a blank line.
The backslash at the end of a line\
produces a line break.
|
<h1>Heading</h1>
<h2>Sub-heading</h2>
<p>Paragraphs are separated
by a blank line.</p>
<p>The backslash at the end of a line<br>
produces a line break.</p>
|
Heading
Sub-heading
Paragraphs are separated by a blank line. The backslash at the end of a line |
Text attributes _italic_, *bold*, `monospace`.
Horizontal rule:
* * *
|
<p>Text attributes <em>italic</em>, <strong>bold</strong>, <code>monospace</code>.</p>
<p>Horizontal rule:</p>
<hr>
|
Text attributes italic, bold, monospace.
Horizontal rule: |
Bullet lists nested within a numbered list:
1. fruits
* apple
* banana
2. vegetables
- carrot
- broccoli
|
<p>Bullet lists nested within a numbered list:</p>
<ol>
<li>fruits
<ul>
<li>apple</li>
<li>banana</li>
</ul>
</li>
<li>vegetables
<ul>
<li>carrot</li>
<li>broccoli</li>
</ul>
</li>
</ol>
|
Bullet lists nested within a numbered list:
|
A [link](http://example.com).
{title="icon"}
> Djot uses email-style
characters for blockquoting.
>
> Multiple paragraphs need to be prepended individually.
Raw content such as inline `<abbr title="Hypertext Markup Language">HTML</abbr>`{=doc} tags must be explicitly marked.
|
<p>A <a href="http://example.com">link</a>.</p>
<p><img alt="Image" title="icon" src="Icon-pictures.png"></p>
<blockquote>
<p>Djot uses email-style characters for blockquoting.</p>
<p>Multiple paragraphs need to be prepended individually.</p>
</blockquote>
<p>Raw content such as inline <abbr title="Hypertext Markup Language">HTML</abbr> tags must be explicitly marked.</p>
|
A link.
Raw content such as inline HTML tags must be explicitly marked. |
| Name | License | Language | Repository | Description |
|---|---|---|---|---|
| djot.js | MIT License | TypeScript | https://github.com/jgm/djot.js | This is a TypeScript rewrite of the original reference implementation. |
| djot.lua | MIT License | Lua | https://github.com/jgm/djot.lua | The original reference implementation. |
| Jotdown | MIT License | Rust | https://github.com/hellux/jotdown | Pull parser implemented as a Rust library |
| Djota | BSD 3-clause license | Prolog | https://github.com/aarroyoc/djota | Implementation in Prolog |
| djoths | MIT License | Haskell | https://github.com/jgm/djoths | Haskell library and command-line tool |
| godjot | MIT License | Go | https://github.com/sivukhin/godjot | Implementation in Go |
Uses
- "File extension". github.com. Retrieved 2023-01-24.
- "Release 0.2.0". 3 January 2023. Retrieved 8 January 2023.
- "Djot (/dʒɑt/)". djot.net. Retrieved 2022-08-13.
- MacFarlane, John (2022-07-11). "Initial commit". github.com. Retrieved 2022-08-13.
- "README.md". github.com. Retrieved 2023-01-24.
- "Quick Start for Markdown users". github.com. Retrieved 2022-08-14.
- "pandoc 3.1.12 (2024-02-14)". pandoc.org. Retrieved 2024-03-05.