Attributes Expression Syntax Error

[porkloin]

I'm trying to use the attributes expression (https://mannequin.io/extensions/drupal/expressions/#attributes) but am encountering an error.

Unable to parse YAML metadata in themes/custom/arby/templates/patterns/base/input.twig. A colon cannot be used in an unquoted mapping value at line 7 (near "attributes: ~attributes({class: [ 'foo' ] })").

My component looks like:

{# @Component
name: Input
group: Base
description: An input form element
samples:
  Button:
    type: submit
    attributes: ~attributes({class: [ 'foo' ] })
#}

FWIW, I'm on the latest version of Mannequin. I tried modifying the syntax within the curly braces in hopes of fixing it, but to no avail.

[rbayliss]

Hmm, yeah, that's problematic. I think if you enclose the entire value in double quotes, you should be ok. Eg:

attributes: "~attributes({class: [ 'foo' ] })"

Can you see if that works for you?

[porkloin]

D'oh, I should have thought to try that.

Enclosed in double quotes works perfectly.