hi!

I just encountered a problem with large files and the find-replace function:
I've got a big file with different datasets like

1|asdf|12348|asdf|....
2|1234855|asdf|238....
3|238ahsh|asdf|238....
and so on

I just want to have all datasets starting with "2|"
So I delete every other dataset with the regex "^[1345]\|*$"

This works well and leaves me a big file with only "2|" datasets and many empty lines. To optimize the onging use of the new file i also want to delete the empty lines with "^\n". And now comes the problem: It works but is AWFULLY SLOW (aprox. 1% of the file per 30 seconds).

Am I doing something wrong or is this a problem within EmEditor/Regex++? Is there another way to get rid of the empty lines?

cheers
A-D-T