xm is a tiny compiler for HTML that adds
<import>
tag to inline external HTML files<slot>
and<fill>
tags to define slots and fill them with content<markdown>
tag to portal into Markdown
xm CLI comes with a dev mode that compiles and serves built HTML.
Furthermore xm is built on top of posthtml-cli and therefore it is extensible.
npm i -g xm
Usage: xm <command> [options]
Commands:
dev Compiles HTML files on change and serves the root folder
build Compiles the HTML files once
help Displays help
Options:
--root Folder to complile (default ./)
--output Output (destination) folder. This is necessary only when using xm build
--htmlOnly Compile and copy only the built HTML files
Allows to inline (import) HTML files into the current one.
<import href="file.html" />
Paths are relative.
<!-- src/folder/index.html -->
<import href="file.html" />
<!-- file.html -> src/folder/file.html -->
You can prefix paths with /
to make them absolute i.e. relative to the --root
value.
$ xm build --root ./src
# <import href="file.html" />
# -> ./src/file.html
xm supports importing .md
(markdown) files too. When importing such files the front matter declarations are converted to fill
elements.
<style>
/* theme */
</style>
<import href="README.md" />
💡 This feature can be used to generate styled docs sites for your open source project!
HTML files can define slot
elements with an attribute name
. slots can be filled when importing HTML files using the fill
tag.
<!-- base.html -->
<!DOCTYPE html>
<title><slot name="title"></slot></title>
<main>
<slot name="main"></slot>
</main>
<!-- about.html -->
<import href="base.html">
<fill name="title">About</fill>
<fill name="main">
<h1>About</h1>
<p>welcome</p>
</fill>
</import>
<footer>Unique to this page</footer>
<!-- about.html (compiled with xm) -->
<!DOCTYPE html>
<title>About</title>
<main>
<h1>About</h1>
<p>welcome</p>
</main>
You can also define a special unnamed slot
that will be filled with the import
children that are not fill
tags:
<!-- base.html -->
<slot></slot>
<footer><slot name="footer"></slot></footer>
<!-- about.html -->
<import href="base.html">
<fill name="footer">good bye</fill>
hello
<p>friend</p>
</import>
<!-- about.html (compiled with xm) -->
hello
<p>friend</p>
<footer>good bye</footer>
- Ivan Demidov for helping me out with PRs and PostHTML
- askucher for transferring ownership of the
xm
package