Macro for making numbered lists in vim?

Question

Often times it seems I have a list of items, and I need to add numbers in front of them. For example:

Item one
Item two
Item three

Which shoul

Answer 1

Insert a number at the start of the block of text eg.

1. Item One

Enter the vim normal mode command as follows:

qb^yW+P^q

This means:

qb       # start recording macro 'b'
^        # move to start of text on the line
yW       # 'yank' or copy a word including the ending whitespace.
+        # move one line down to the start of the next line
P        # place text ahead of the cursor
^        # move to start of text
 # increment text
q        # Finish recording macro

What this allows you to do is replay the macro across the last line of numbered list as many times as needed.