VIM: how to append yanked text to unnamed register
vim
Solution
You can use this
:let @"=@".getline('.')
to append to the unnamed register. I do not believe there is a keyboard shortcut to do this. (However you could create a mapping if you wanted.)
The reason I say that there is no keyboard shortcut for this is because `:h quote_alpha` only talks about uppercase letters (for appending). And there is no equivalent statement in `:h quote_quote`
Problem
I know `"Ayy` can append current line to register a. How do I append current line to unnamed register?