<p>This plugin displays the content of a file in a post. The content of the file<br />
(called a “snippet”) is put in a <code><pre></pre></code> block by default.</p>
<p>It has the following advantages over pasting the content of the file in your post<br />
yourself:</p>
<ul>
<li>When the file is modified, no need to modify the posts referring to it</li>
<li>Indentation is preserved by default (useful to show code snippets)</li>
<li>Can optionally provide a link to the file (no need to copy-paste your snippet)</li>
</ul>
<p>If requested (see the <code>preserveformat</code> parameter), the content of the file<br />
is put in a <code><div></div></code> block, with each line (delimited by<br />
the carriage return) in its own <code><p></p></code> block.</p>
<h4>Usage</h4>
<p>Syntax: <code>[file lang="some_lang" start="a_line_number" end="a_line_number" link="on_or_off" style="some_style_properties" preserveformat="on_or_off"]path/to/your/file[/file]</code></p>
<p>Note: The order of the attributes is mandatory!</p>
<h4>Example: Inlining of a file</h4>
<p>In your post, write <code>[file]path/to/your/file[/file]</code>. That’s it!</p>
<h4>Example: Using a syntax highlighter plugin</h4>
<p>If you write <code>[file lang="cpp"]path/to/your/file[/file]</code> (for instance),<br />
and if the syntax highlighter plugin you use supports<br />
the <code><pre lang="*"></pre></code> syntax (most does), then the content<br />
of your file will be processed by the syntax highlighter plugin as usual.</p>
<h4>Example: Provide a link to the file</h4>
<p>If you write <code>[file link="on"]path/to/your/file[/file]</code>, a link will<br />
be automatically added to the top left of the text area.</p>
<h4>Example: Inline a subset of a file</h4>
<p>If you write <code>[file start="10" end="20"]path/to/your/file[/file]</code>,<br />
only the lines 10 to 20 of the file will be displayed. You can omit the start<br />
(ie. “from beginning to line 20”) or the end (ie. “from line 10 to the end of<br />
the file”) if you want.</p>
<h4>Example: Set the color of the text to red</h4>
<p>In your post, write <code>[file style="color: #FF0000;"]path/to/your/file[/file]</code>.</p>
<h4>Example: Prevent the plugin to process a [file][/file] block</h4>
<p>Just write <code>[file off]your content[/file]</code>.</p>
<p>Note: The ‘off’ attribute must come BEFORE any other ones.</p>


File Inliner

This plugin displays the content of a file in a post.

Kevin Batdorf

<p>The missing inline block CSS editor for the Gutenberg editor. Very powerful with synced patterns as well. And it pairs well with global styles.</p>
<p>This plugin is perfect for users looking to add CSS for blocks without needing to create a child theme, or use a bloated plugin. Client safe too. CSS won’t leak outside of the block, and only valid block CSS is persisted.</p>
<p>Star it on <a href="https://github.com/KevinBatdorf/pattern-css" rel="nofollow ugc">GitHub</a><br />
Follow me on Twitter <a href="https://twitter.com/kevinbatdorf" rel="nofollow ugc">@kevinbatdorf</a></p>
<h4>How to</h4>
<ul>
<li>Every block will have a new “Pattern CSS” settings panel</li>
<li>Open it and add any CSS. It will be scoped to the block</li>
<li>To target the block directly, you must use the <code>[block]</code> selector</li>
<li>To target any element <em>inside</em> the block, use the normal CSS selector</li>
<li>Use <code>!important</code> to override your theme styles (use sparingly)</li>
</ul>
<h4>Global Editor</h4>
<ul>
<li>Access global styles under the options menu (three dots) in the top right corner of the editor</li>
<li>Additionaly, you can open from the Pattern CSS block editor controls</li>
</ul>
<h4>Features</h4>
<ul>
<li>Powered by WebAssembly for fast and secure CSS parsing</li>
<li>Smart loading. Only loads the CSS when the block is present</li>
<li>Styles persist when changing themes</li>
<li>Scopes styles to the block so that parent/sibling blocks are not affected</li>
<li>It’s fast</li>
<li>CSS is minified and optimized</li>
<li>It’s safe. Invalid, non-spec CSS is never persisted</li>
<li>Supports reusable (synced or not-synced) patterns</li>
<li>See changes on the page as you make them</li>
<li>Combines adjacent rules (to decrease size)</li>
<li>Minifies colors and math functions to simplify according to spec</li>
<li>Supports CSS nesting</li>
</ul>
<h4>Basic Example</h4>
<pre><code>/* Target the block directly */
[block] {
  background: antiquewhite;
  padding: 2rem;
}
/* Target any inner elements */
a {
  text-decoration-color: burlywood;
  text-decoration-thickness: 2px;
  text-decoration-style: solid !important;
}
a:hover {
  text-decoration-color: darkgoldenrod;
}

/* Output: */
.pcss-a1b7b016{background:#faebd7;padding:2rem}.pcss-a1b7b016 a{text-decoration-color:#deb887;text-decoration-thickness:2px;text-decoration-style:solid!important}.pcss-a1b7b016 a:hover{text-decoration-color:#b8860b}
</code></pre>
<h4>Supports Media Queries</h4>
<pre><code>@media (prefers-color-scheme: dark) {
  [block] {
    border-color: blue;
  }
}

/* Output: */
@media (prefers-color-scheme:dark){.pcss-cddaa023{border-color:#00f}}
</code></pre>
<h4>Combines Rules</h4>
<pre><code>[block] {
  color: red;
}
.bar {
  color: red;
}

/* Output: */
.pcss-3aa0f0fc,.pcss-3aa0f0fc .bar{color:red}
</code></pre>
<h4>Fixes redundant properties</h4>
<pre><code>[block] {
  padding-top: 5px;
  padding-left: 50px;
  padding-bottom: 15px;
  padding-right: 5px;
}

/* Output: */
.pcss-3aa0f0fc{padding:5px 5px 15px 50px}
</code></pre>
<h4>Supports CSS nesting</h4>
<pre><code>[block] {
  padding: 1rem;
  a {
    color: red;
  }
  background: white;
  /* Including media queries */
  @media (prefers-color-scheme: dark) {
    background: black;
    color:white;
  }
}

/* Output: */
.pcss-f526bb2d{background:#fff;padding:1rem;& a{color:red}@media (prefers-color-scheme:dark){&{color:#fff;background:#000}}}
</code></pre>
<p>Check browser support for <a href="https://caniuse.com/css-nesting" rel="nofollow ugc">CSS nesting</a></p>


Pattern CSS – The CSS Editor For Blocks


This is exactly what I need. Very easy to use. Love that you can scope to current item with [block] {}



JANUARY 2025 UPDATE: after a year of use and having installed on at least 20 client sites, I now look at this as indispensable to my work as a website developer. No complaints whatsoever.


really, really great CSS control

Add a CSS editor to your blocks and patterns! Loads only where necessary. Supports adding global CSS too.

File Inliner vs Pattern CSS – The CSS Editor For Blocks