One nmap to rule them all

[soerenwolfers]

Can I use vim-commentary to create a normal mode map, let's say to ', that does:

• On a not commented line: Immediately comment out the line
• On a commented line:
  • If the line doesn't have adjacent commented lines: immediately uncomment the line
  • If the line does have adjacent commented lines:
  • Uncomment all of them if ' is pressed again within a time limit (set timeout)
  • Uncomment the current line if ' is not pressed again within a time limit (or any other key is pressed)

[tpope]

If you care about that "immediately" constraint, you're going to have to implement your own custom map that uses reltime() or something to figure out if the correct amount of time has elapsed.

[soerenwolfers]

@tpope Could you give me a hint at how to figure out, using the code you already wrote, the size of the current comment block (0 for current line is not commented, 1 for current line is commented but has no commented neighbors, >1 current line is commented and has commented neighbors)?

I think I have the rest ready (though it is kind of ugly, since it requires sacrificing another key for a new binding, here +)

nmap ' :call MyUncomment()
nmap + :call MyUncomment2()
namp +' :call MyUncomment3()
function! MyUncomment()
  let n = sizeofcommentblock()
  if n<2 
    call <Plug>CommentaryLine
  else 
    call feedkeys("+") 
  endif
endfunction
function! MyUncomment2() " No more ' was pressed -> uncomment line
  call <Plug>CommentaryLine
endfunction
function ! MyUncomment3() " Another press of ' -> uncomment block
 call <Plug>Commentary<Plug>Commentary
endfunction