Allow sorting classes inside function calls in Twig templates

[bronisMateusz]

Support for prettier-plugin-tailwindcss-drupal

Description

This PR adds support for the prettier-plugin-tailwindcss-drupal by including it in the plugin's supported file types and processors.
The Drupal-specific plugin extends the sorting logic to match Tailwind conventions commonly used in Drupal theme development, including handling template attributes such as attributes, title_attributes or content_attributes.

Problem

Tailwind projects built within Drupal environments often rely on custom attributes, classes, and template structures (e.g., .html.twig files).
The default Tailwind Prettier plugin does not handle these files or Drupal-specific class patterns out-of-the-box.

Solution

• Register .html.twig and other Drupal-related file types as supported.
• Delegate class sorting and attribute handling in those files to prettier-plugin-tailwindcss-drupal, which is built on top of the core plugin but tailored to the Drupal ecosystem.
• Ensure support for Drupal’s template attribute system (e.g., attributes.addClass()), commonly used for dynamic class injection.

Testing

• Verified sorting and attribute handling behavior in .html.twig templates with embedded Tailwind classes.
• Ensured no regressions in other supported file types.
• Ran npm test to confirm plugin compatibility.

[bronisMateusz]

@thecrypticace Thanks for the code revisions. Any plans to release this feature in the near future?

[bronisMateusz]

I think we could also consider support for removeClass(). It is not as common as addClass(), but it happens in some projects, and I had forgotten about it. @thecrypticace If you want, I can prepare the corresponding code changes.

https://www.drupal.org/docs/8/theming-drupal-8/using-attributes-in-templates#s-attributesremoveclass

[thecrypticace]

I still have to do some thinking about the implementation as there's a disconnect between how call expressions are walked in JSX and Twig. That might be fine to have a slight difference in behavior but not sure.

I think we could also consider support for removeClass().

This implementation supports any function call. I made it generic. Our plugin already has affordances for sorting in function calls via the tailwindFunctions prettier option.

See the updated tests.

[thecrypticace]

I've decided that, even though there's a disconnect, that it's probably okay. We could always tweak it by doing a walk toward the inside (like this PR does) and a walk toward the outside (like JSX) and matching against either if we wanted to have similar-ish behavior.

[thecrypticace]

This will go out in v0.7.0 next week. Thanks!

[bronisMateusz]

So good to hear that! Thank you very much for your work on this 😁