Document symbols shows a lot of empty lines in neovim kickstart

[ziriuz84]

I'm configuring Trouble in my new installation of Neovim via kickstart.nvim. I use default options for Trouble. When I launch document symbols in a php file it appears as the image

How can I know what are all those empty lines and how can I remove them if unuseful?

[mfandrade]

Same here.

[bmatcuk]

I ran into this problem, too. It's caused by the default option multiline = true. They look like a bunch of empty lines, but that's only because the text is off the right side of the screen. If you open the symbols with :Trouble lsp_document_symbols, which will open at the bottom of your screen by default, you'll see what I mean.

You can fix the problem a couple different ways. You could, of course, disable multiline across the board, by setting multiline = false in your top-level Trouble config, but that's probably not what you want. You could create your own mode that inherits from symbols like:

...
modes = {
  mysymbols = {
    mode = "symbols",
    multiline = false,
  }
}
...

And then use it with :Trouble mysymbols. Or, you could copy/paste the symbols mode from the default configuration into your config, and add multiline = false somewhere in there.