Re: vim: format each long lines and insert just one break afterward

On 2013-05-18, ping wrote:
> tested long time no good results...
>
> so the goal here sounds simple: say I have
>
> * a long text file (over 50K lines), and
> * each line by itself is a nature paragraph, so sometime is very long
> (over 1000 charactors).
> * there are sometimes one of more empty line in between, sometimes not
>
> I wanted to format it into:
>
> 1. if 2 lines are adjoining, add an empty line to as a break
> 2. if 2 lines already have more than 1 empty lines in between, remove
> the extra and make sure only one empty line left.

This is equivalent to replacing a sequence of one or more newlines
with two newlines.

:%s/\n\+/\r\r/

> 3. trunk the long lines to multiple lines with each of 80 charactors

:set tw=80
gggqG

Regards,
Gary

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