Re: shouldn't `delete-blank-lines' treat form-feed as whitespace?

[Stephen J. Turnbull]

Jonathan Yavner writes:

 > Function delete-trailing-whitespace specifically states that it does not 
 > delete FF.  It also doesn't delete VT.

In Unicode, FF at least has line-breaking semantics.  I believe VT
does as well.  So they are not deleted because they aren't trailing
whitespace, they break the trail themselves.

 > So why should delete-blank-lines delete these?

Because they create vertical whitespace, and delete-blank-lines is
intended to close it up.  I can see an argument for not deleting them,
too, so I would want to hear from users about their use cases.