File naming with acronyms

[YannIsCoding]

The guide doesn't give any specification about file naming in the case of acronyms in the class name. https://github.com/rubocop-hq/ruby-style-guide#snake-case-for-files

Following the logic that each word should be separated by an underscore in the file name and a capital letter in the class name, one might expect that the class "SomeXML" should be translated into "some_x_m_l.rb".

This however does not work with Rails and there is no mention of class naming in the rails guide.

This might be a useful addition to this guide.

[bbatsov]

Agreed.

I was under the impression that acronyms are typically presented as one work in the file name. I've never seen a file name like some_x_m_l.rb, so I'd advice against this practice.

[andyw8]

I agree that file should always be named some_xml.rb, but I think it could be worth covering whether the class name would be SomeXML or SomeXml. My impression is the former is more common in the Ruby world, the latter in the JavaScript and Java worlds.

[andyw8]

(maybe it's not so clear-cut in JS - XMLHttpRequest has two style in the one name!)