Should underscore pass the method name normalization?

[JoeDupuis]

I have locale fr for France and locale ca_fr for Canadian French.

When I try:

i = GiInspection.new
i.full_name = :en
i.full_name_fr = :also_ok
i.full_name_translations   #=> {"en"=>"en", "fr"=>"also_ok"}
i.full_name_ca_fr = :not_ok
Traceback (most recent call last):
        1: from (irb):7
NoMethodError (undefined method `full_name_ca_fr=' for #<GiInspection:0x00007f126993e978>)

# Removing the underscore seems to work:
i.full_name_cafr = :works
i.full_name_translations #=> {"en"=>"en", "fr"=>"also_ok", "ca_fr"=>"works"}

It comes from the locale normalization in the method generation :
https://github.com/cfabianski/json_translate/blob/master/lib/json_translate/translates.rb#L30

Wouldn't it be better if the normalization pass accepted underscores?

Maybe not at this point as it might breaks some apps.