pHTML Template

pHTML Template lets you create and reuse pre-rendered templates in HTML.

<header is:template="heading">
  <h1 is:slot>Page Heading</h1>
  <hr />
  <is:slot name="subheading"></is:slot>
</header>

Templates are made with the <is:template> element or is:template attribute, and they are used with the <as:template> element or as:template atttribute.

<as:template name="heading">
  Goodbye Mars
  <p as:slot="subheading">We really painted the town red...</p>
</as:template>

<!-- becomes -->

<header>
  <h1>Goodbye Mars</h1>
  <hr />
  <p>We really painted the town red...</p>
</header>

Slots are made with the <is:slot> element and is:slot attribute, and their contents are replaced with the <as:slot> element or as:slot attribute.

When slot content is not replaced, its original content is rendered.

<as:template name="heading"></as:template>

<!-- becomes -->
<header>
  <h1>Main Section</h1>
  <hr />
</header>

Is and As

The <is:*> and <as:*> elements define “fragment containers” which are not actually rendered. Nameless content goes into nameless slots.

<is:template name="replace"><is:slot>Replaceable Content</is:slot></is:template>

<as:template name="replace">Replaced Content</as:template>

<!-- becomes -->
Replaced Content

The is:* and as:* attributes render their container, and when both used together then the “is” element always wraps the “as” element.

<is:template name="replace"><p is:slot>Replaceable Content</p></is:template>

<as:template name="replace"><span class="inner-span" as:slot>Replaced Content</span></as:template>

<!-- becomes -->
<p><span class="inner-span">Replaced Content</span></p>

When the as:template attribute is used, its element becomes the wrapper for nameless slots.

<is:template name="replace"><p is:slot>Replaceable Content</p></is:template>

<span class="inner-span" as:template="replace">Replaced Content</span>

<!-- becomes -->

<p><span class="inner-span">Replaced Content</span></p>

Usage

Transform HTML files directly from the command line:

npx phtml source.html output.html -p @phtml/template

Node

Add pHTML Template to your project:

npm install @phtml/template --save-dev

Use pHTML Template to process your HTML:

const phtmlTemplate = require('@phtml/template');

phtmlTemplate.process(YOUR_HTML /*, processOptions, pluginOptions */);

Or use it as a pHTML plugin:

const phtml = require('phtml');
const phtmlTemplate = require('@phtml/template');

phtml([
  phtmlTemplate(/* pluginOptions */)
]).process(YOUR_HTML /*, processOptions */);

pHTML Template runs in all Node environments, with special instructions for:

Node	CLI	Eleventy	Gulp	Grunt

Options

importFrom

The importFrom option specifies objects and sources where Templates can be imported from.

phtmlTemplate({
  importFrom: 'path/to/file.html'
});

These sources might be HTML, JS, and JSON files, functions, and directly passed objects.

phtmlTemplate({
  importFrom: [
    {
      'phtml-templates': [
        {
          from: 'path/to/file.html'
        },
        {
          html: '<header is:template="heading">\n  <h1 is:slot>Page Heading</h1>\n  <hr />\n  <is:slot name="subheading"></is:slot>\n</header>'
        },
        () => {
          return [
            'path/to/another-file.html',
            {
              html: '<header is:template="another-heading">\n  <h1 is:slot>Page Heading</h1>\n  <hr />\n  <is:slot name="subheading"></is:slot>\n</header>'
            }
          ];
        }
      ]
    }
  ]
});