VimGolf - real Vim ninjas count every keystroke!

Number an outline

The indent and words are right, but the numbers are all wrong.

Start file

1. One
  1. One
    1. One
  1. Two
    1. One
    1. Two
      1. One
    1. Three
    1. Four
  1. Three
    1. One
      1. One
      1. Two
    1. Two
  1. Four
    1. One
    1. Two
    1. Three
    1. Four
    1. Five
    1. Six
  1. Five
    1. One
    1. Two
    1. Three
1. Two
  1. One
    1. One
    1. Two
    1. Three
    1. Four
    1. Five
  1. Two

End file

1. One
  1. One
    1. One
  2. Two
    1. One
    2. Two
      1. One
    3. Three
    4. Four
  3. Three
    1. One
      1. One
      2. Two
    2. Two
  4. Four
    1. One
    2. Two
    3. Three
    4. Four
    5. Five
    6. Six
  5. Five
    1. One
    2. Two
    3. Three
2. Two
  1. One
    1. One
    2. Two
    3. Three
    4. Four
    5. Five
  2. Two

View Diff

4c4
<   1. Two
---
>   2. Two
6c6
<     1. Two
---
>     2. Two
8,10c8,10
<     1. Three
<     1. Four
<   1. Three
---
>     3. Three
>     4. Four
>   3. Three
13,15c13,15
<       1. Two
<     1. Two
<   1. Four
---
>       2. Two
>     2. Two
>   4. Four
17,22c17,22
<     1. Two
<     1. Three
<     1. Four
<     1. Five
<     1. Six
<   1. Five
---
>     2. Two
>     3. Three
>     4. Four
>     5. Five
>     6. Six
>   5. Five
24,26c24,26
<     1. Two
<     1. Three
< 1. Two
---
>     2. Two
>     3. Three
> 2. Two
29,33c29,33
<     1. Two
<     1. Three
<     1. Four
<     1. Five
<   1. Two
---
>     2. Two
>     3. Three
>     4. Four
>     5. Five
>   2. Two