Trim option on the Length validator

[SkwalExe]

Would it be a good idea to implement a trim option on the input Length validator?
It could be useful for example when you want the user to input at least 2 chars but not spaces.

Should I create a pull request ?

[darrenburns]

Could you describe what this means in a little more detail? I'm not understanding what this option would do.

[SkwalExe]

When using the Length() validator you could do something like Length(..., trim=True) and the length would be checked on the trimmed value of the input instead of being directly checked on the value.

The "trimmed value" is the value without the trailing and leading spaces

[darrenburns]

Oh, I like this idea. @willmcgugan would we accept a PR for this?

[willmcgugan]

Sure, seems reasonable...

[SkwalExe]

#3373

[SkwalExe]

This is one of my first contributions to an open source project, please tell me if I did anything wrong :)