I am building an integration for a client with the HelloWorks API. This is a service that allows you to create user-fillable PDF forms.
It appears that their product supports formatted/template strings/formula fields as outputs to the PDF files, as when I create a Date field, it creates an output field with the following data:
#{format(:date, @field_XXXXX, "{0M}/{0D}/{YYYY}")}
However, I cannot find any kind of documentation as to what is the format of this template string/formula field.