Translations that start with an _ or - generate a file named <translation>..translation

[IntangibleMatter]

Godot version

4.1.1 stable

System information

Linux Pop!_OS 22.04 LTS

Issue description

When you create a CSV file to import for translation, if you have a locale that begins with an underscore or a hyphen, it will be semi-ignored, with all columns that have a hyphen or underscore being shoved into one translation file with the name ..translation.

Ideally this would be imported properly, or better yet work like godotengine/godot-proposals#8183.

Steps to reproduce

Create a translation CSV and add a locale column that starts with an _ or a -. Import it, and a translation file with no locale will be imported.

Minimal reproduction project

trtest.zip

[jsjtxietian]

Confirmed. The problem is that when godot meets unrecognized locale, it just use an empty as it's name and this will produce a .<empty>. and thus ..
I think for this bug fix we can just ignore the wrong "lang" tags (see https://docs.godotengine.org/en/stable/tutorials/assets_pipeline/importing_translations.html, engine make a string assumption about tranlation format) . As for that proposal, it may still need more discussion before implentation.

[bruvzg]

Locale code should have specific format, see - https://docs.godotengine.org/en/stable/classes/class_os.html#class-os-method-get-locale