Find two consecutive non-empty lines

Question

I want to find two consecutive non-empty lines.

AAA
BBB

    AAA
BBB

AAA
    BBB

    AAA
    BBB

The file above shows four pairs of consecutive non-empty lines. All of the lines can have trailing white space

I tried ^\s*\S\+\n\s*\S+ But that does not do the job. Moreover, it does not account for trailing spaces. I tried ^\s*\S\+\s*$\n\s*\S+\s*$ too. But no luck again.

So, how do I search for such lines? And it would be great if you could explain your solution.

Answer 1

Try this:

/.*\S.*\n.*\S

That finds a line containing at least one non-space character (\S) followed by another line containing at least one non-space character. That assumes that "non-empty" means containing at least one non-space character.