Symfony version(s) affected

5.2.0 and higher

Description

When generating yaml translation files and using the --as-tree=3 option on the translation:extract command, the Translation component generates a tree of translatable strings. Therefore, it explodes the translatable string by the ., which can result in odd behavior when the user is not using translation keys, but full sentences. For example, a lot of validation error messages end in with a dot, resulting in yaml like this:

'This value should be false':
    '': 'This value should be false.'
'This value should be true':
    '': 'This value should be true.'
'This value should be of type {{ type }}':
    '': 'This value should be of type {{ type }}.'

While it's impossible to prevent this behavior when dots are in the middle of a strings, I think dots at the start and end of a translation key are supposed to be trimmed.

How to reproduce

symfony create --webapp and then bin/console translation:extract --force --format=yaml --as-tree=3 en

Possible Solution

No response

Additional Context

No response