Maximum length for strings

Sometimes we need strings to be not more than some number of characters. For example for buttons or caption of fields. Translators may not know this resctriction and can make application looks horible.
For example button "launch" in my application can be maximum 12 characters and when it takes more It pushes other views away. In German this word may be translated as "Markteinführung" It takes 16 characters!
It would be great to add this kind of validation. (may be with edit button for string).

The issue names no files, tests, or entry points. First clarify where translation strings are edited and validated, whether limits apply per language or source string, and what should happen when a translation exceeds the limit.

Written by the indexing model from the issue text.