[surround] How to surround a line with empty lines?

[lfilho]

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• I have read CODE_OF_CONDUCT.md

Module(s)

Surround

Description

Basically what i wanted is:

With the cursor anywhere on line two:

one
two
thre

get the following result:

one

two

three

I tried sa_<enter>, but then it just surrounds that line with enter's code ^M, which i hardly think will be useful to anyone. Could we maybe intercept that ^M and actually surround the line with new lines? Or maybe there's already a way to achieve that that i'm missing?

Thanks a lot for your great work

[echasnovski]

Thanks for suggestion!

I don't think it is possible under current design. The closest you can get is via setting respect_selection_type = true and then using interactive surrounding ? like sa_?<CR><CR>. But this will indent current selection.

There are alternatives:

• Use custom mappings. Like so:

vim.keymap.set('n', '<M-m>', [[<Cmd>call append(line('.'), '') | call append(line('.')-1, '')<CR>]])
vim.keymap.set('x', '<M-m>', [[:<C-u>call append(line("'>"), '') | call append(line("'<")-1, '')<CR>]])

• Use 'mini.basics' and its go/gO to insert blank line after/before current line.

I'll think about if there is a relatively simple way to add this to 'mini.surround'.

[echasnovski]

I've made several attempts to make it possible to write custom surrounding that would support this fully, but I don't think it is possible without changing 'mini.surround' code. The main problem is that for linewise selection left surrounding is applied to the first non-blank character. If it wasn't the case, then the following would work:

require('mini.surround').setup({
  custom_surroundings = {
    -- Use `<CR>` as surrounding identifier
    ['\r'] = { output = { left = '\n', right = '\n' } },
  },
})

Currently, it will affect the indentation of first selected line.

As present behavior of special handling of indent in linewise selection seems to be more universally applicable, I don't think this will be possible in 'mini.surround'. I'd suggest using my previous advice on custom mapping or combination of go/gO from 'mini.basics'.