seek empty lines and delete them with regexp

[guyclaudeburger-collab]

Hi, is there a way to seek empty lines and delete them with the replace feature ?
I can match "^$", alright, and stuff in it, but I can not match the newline itself and delete it. At least I don't know how ?

[Andriamanitra]

The built-in replace command doesn't currently support multi-line matches.

You could use the textfilter command with an external command such as grep, sed or awk to keep only non-empty lines. For example SelectAll (Ctrla) and then textfilter grep -v "^$"

[dmaluka]

The built-in replace command doesn't currently support multi-line matches.

Yeah, and there is an open bug #1708 (and its duplicate #3126) for that.