Función para cambiar a snake_case la últimas palabras escritas

snake_case.vim

fun! Snake_last() "{{{
    let start_mod = getpos("'[")
    let end_mod = getpos("']")

    if start_mod[1] != end_mod[1]
        return
    endif

    let mod_line = getline(start_mod[1])
    let inserted_text = mod_line[start_mod[2] - 1:end_mod[2] - 2]

    let text_replacement = substitute(inserted_text, '\v(\S)@<=\s(\S)@=', '_', 'g')
    let prepared_line = ''
    if start_mod[2] > 1
        let prepared_line .= mod_line[0:start_mod[2]-2]
    endif
    let prepared_line .= mod_line[end_mod[2]-1:-1]
    call setline(start_mod[1], prepared_line)
    call setpos('.', start_mod)
    call feedkeys('i' . text_replacement . "\<Esc>")
endfunction "}}}

command! SnakeCaseLast call Snake_last()
cab sl SnakeCaseLast