Fold away empty lines
From Vim Tips Wiki
created 2003 · complexity basic · author Thomas · version 6.0
You can fold sequences of two or more empty lines (may contain whitespace) with these settings:
:syn match MyEmptyLines "\(^\s*\n\)\+" fold :syn sync fromstart :setlocal foldmethod=syntax
After entering the above, type
zM to close all folds, or
zR to open them.
If you have set '
foldcolumn' to more than 0 you can open/close the empty-line blocks by clicking the '+' or '-' with the mouse in the folder column.
 See also
- Remove unwanted empty lines to delete blank lines
Thanks for the tip, it works indeed, but appears to be very slow. Hundreds of empty lines have been added on a file I must look at, but it takes 30s before I can view the result -any idea ?