" various tools inside vim
function! GetCharUnderCursor()
    let line = getline('.')
    let col = col('.')
    return line[col - 1]
endfunction

" predefined macros in functions
function SpacedLine()
    normal o
    normal O
    normal O
    normal j
endfunction

function SwapWords()
    normal dw
    normal e
    exec 'normal! a '
    normal p
    normal l
    let char = GetCharUnderCursor()
    if char == ' '
        normal x
    endif
    normal h
    normal b
    normal b
endfunction

let @o = ':call SpacedLine()
'
let @s = ':call SwapWords()
'