About Code Blocks Textformatter

Converts content within backticks into code blocks.

Category Text Formatters
Textformatter modules that provide run-time formatting for blocks of text (typically used with Text/Textarea fields).
Release StateBeta
Close to stable, but users are advised to be cautious and test thoroughly.*
Module Version1.0.2
Class NameTextformatterCodeBlocks
Compatibility2.7, 3.0
Date AddedFebruary 17, 2018
Last UpdatedAugust 29, 2020
Recommended ByNew recommendations may take up to 1 day to appear.


This module's files should be placed in /site/modules/TextformatterCodeBlocks/
How to install or uninstall modules



ProcessWire Textformatter module for enabling Markdown style code blocks for text or RTE fields.

Note: this is not a complete Markdown implementation, but rather a home-baked implementation of just one small part of the Markdown syntax. For full Markdown support, check out the TextformatterMarkdownExtra module, bundled with ProcessWire releases by default.

Getting started

  • Copy (or clone) the TextformatterCodeBlocks directory to /site/modules/
  • Go to Admin > Modules, hit "Refresh", and install TextformatterCodeBlocks
  • Enable "Code Blocks Textformatter" for fields in which you wish to use code blocks

IMPORTANT: if you use Code Blocks Textformatter with a regular text or textarea field, make sure that you enable HTML Entity Encoder or use another method of escaping entities!

Code blocks

Code blocks should work fine when wrapped in <p> or <pre> tags, so you can use them with RTE, such as CKEditor. This module supports two types of code blocks: fenced and inline.

Note: following code examples have been escaped for better readability when rendered in GitHub. In a nutshell the syntax for fenced code blocks is three backticks around a code block, and for inline code blocks just sourround a specific piece of code with single backticks.

Fenced code blocks

Simple example:

echo "This is a fenced code block.";

With fenced code blocks you can also specify the language for a syntax highlighter:

echo "This PHP code is easier for a syntax highlighter to identify.";

The end result of fenced code blocks looks like this:

<pre class="code-block code-block--fenced"><code class="language-php">&lt;?php echo "This PHP code is easier for a syntax highlighter to identify.";</code></pre>

Inline code blocks

<p>While fenced code blocks are great for longer code snippets, sometimes `<?php echo "inline code blocks"; ?>` make more sense.</p>

The end result of inline code blocks looks like this:

<p>While fenced code blocks are great for longer code snippets, sometimes <code class="code-block code-block--inline">&lt;?php echo "inline code blocks"; ?&gt;</code> make more sense.</p>

Enabling syntax highlighter

Though syntax highlighting is not necessary for this module to work, it can be really helpful for your end users. You can use any syntax highlighter, but I would recommend Prism.js.

For detailed instructions on enabling Prism.js on your site, please visit http://prismjs.com/.