9 releases (4 breaking)

Uses new Rust 2024

0.6.1	Nov 9, 2025
0.6.0	Nov 9, 2025
0.5.2	Nov 9, 2025
0.4.1	Oct 31, 2025
0.2.0	Jul 17, 2025

#1756 in Rust patterns

AGPL-3.0-or-later

36KB
780 lines

🐈‍⬛ nanoneo

Super simple parser and "compiler" for turning a lisp-like DSL into HTML.

Here's a small example:

(text "<!DOCTYPE html>") ; using a raw string for the doctype is fine
(html
  (head
    ; everything that belongs in the head element
    (title (text "Document"))

    (meta ("charset" "UTF-8"))
    (meta ("name" "viewport") ("content" "width=device-width, initial-scale=1.0"))
    (meta ("http-equiv" "X-UA-Compatible") ("content" "ie=edge"))

    (link ("rel" "stylesheet") ("href" "#")))

  (body
    ; the actual body only starts here
    (span ("style" "color: red") (text "Hello, world!"))))

This yields:

<!-- formatted to for viewing ease... this comment is also not included -->
<!DOCTYPE html>
<html>
    <head>
        <title>Document</title>
        <meta charset="UTF-8" />
        <meta content="width=device-width, initial-scale=1.0" name="viewport" />
        <meta content="ie=edge" http-equiv="X-UA-Compatible" />
        <link rel="stylesheet" href="#" />
    </head>
    <body>
        <span style="color: red">Hello, world!</span>
    </body>
</html>

Syntax

nanoneo has some super simple syntax helpers:

You can create raw HTML elements using (text "...") or (tag' "...")
You can add attributes using (attr "key" "value") or ("key" "value")
Whitespace is ignored (except for in parenthesis), so you can format however you'd like
- The only formatting rule is there must be a space after tag names, and everything must be in parenthesis!
- Parenthesis and strings must also be properly closed

License

nanoneo is licensed under the AGPL-3.0.

Dependencies

~0–1MB
~19K SLoC