Auto trim before validate

Is there a trim option before validate? Or what is the best practice to avoid errors with unnecessary blanks?

The issue does not name a file, test, or entry point. Start by locating the validation configuration and input-validation flow, then determine whether trimming belongs in the library or should be documented as a usage practice. Done means the behavior or recommendation is clearly defined and covered by an appropriate test or documentation update.

Written by the indexing model from the issue text.