Is there a Vim command to delete all fold markers in a file?

Question

To delete a particular fold one can do zd.

To delete all fold markers one can execute:

:%s/# {{{//
:%s/# }}}//

But is there a command (like zd) to delete all markers?

Answer 1

tl;dr zE is the command you are looking for.

Now for the long version.

Assuming:

1. Your foldmethod is set to marker.
2. Your foldmarker setting matches the fold markers in the file (in your case it's the default {{{,}}}).
3. Your commentstring is set properly (this is almost certainly the case, unless vIM doesn't have a syntax file for the file type).

You can just use zE which Eliminates all folds in the file.

You can check the settings by running :set foldmethod? foldmarker? commentstring? and set them by running :set foldmethod=manual foldmarker={{{,}}} commentstring=#%s.

See the docs here: http://vimdoc.sourceforge.net/htmldoc/fold.html#zE

There are some caveats in the docs here: http://vimdoc.sourceforge.net/htmldoc/fold.html#fold-delete-marker

This does not work properly when:

• A line contains more than one marker and one of them specifies a level. Only the first one is removed, without checking if this will have the desired effect of deleting the fold.

• The marker contains a level number and is used to start or end several folds at the same time.

Answer 2

I answer this myself:

To delete all fold markers, visually select all the file with ggVG before doing a zd.