How to select/delete/yank the contents of only the current fold?

Question

When using foldmethod=marker, how do you select or reference exactly the contents of the current fold? I want to swap the order of two folds. If they were paragraphs, I would do dap { p. However, I can't find a corresponding daz. I think the answer is obvious, but I sure can't find it here or on Google. Possibly related to this question.

MCVE:

Fold 1 {{{

}}}
Fold 2 {{{

}}}
Fold 3 {{{
}}}

- vi: set foldmethod=marker: -

Put the cursor on Fold 2. Then dzj removes the contents of Fold 2, and also the Fold 3 line. Or, put the cursor on the }}} of Fold 2, and dzk kills the end of Fold 1 as well. Similar results from d[z and d]z.

zd removes the fold markers, but I want to actually grab the contents of the fold.

If I could do something like viz d, that would work great — but searches for "visual" and "folding" are giving me lots of hits about v<motion>zf, which is not what I want.

So far, the only options I have found are:

• to delete, zc dd (close the fold, then delete the resulting single line).
• to select in visual mode, zc V

Are those indeed the Right Things to use?

Answer 1

There is no text object for folds in vim, but there is a plugin which provides them, az/iz: https://github.com/kana/vim-textobj-fold

Here are vanilla alternatives:

• vi{/va{. This may or may not select what you want, depending on whether your markers are in comments or not.

• [zV]z. Alternatively you can replace V with any operator.

• make your own: xnoremap az [zo]z, xnoremap iz [zjo]zk

Answer 2

To delete the current fold, you simply have zd for instance

Otherwise, you could also define an operator-pending mode mapping with for instance:

:onoremap iz :<c-u>normal! [zV]z<cr>

Which will permit stuff like diz, ciz, yiz, =iz and so on.

BTW, the related visual mode mapping would be:

:xnoremap iz [zo]z

Answer 3

If you are on a closed fold, any regular action will apply to the whole fold.

To delete closed fold under cursor then, you need only type D or d$. To yank it to the clipboard, Y or y$.

You can similarly, for example, delete three folds from the current fold, inclusive, and place them in the system clipboard, by typing "+d3j.

Answer 4

I have defined a simple macro. Anywhere in a fold, delete the fold content:

map dz ?{{{<CR>:.+1,/}}}/-1d<CR>