Run macro between buffers

Question

I know there is a possibility to run a macro in multiple buffers using bufdo.

However, what I'm not aware, if there is somehow to use a "intercommunicated macro", e.g:

File 1:

foo
bar
bun

File 2:

{
}

Some pseudo macro: ggD(move to buffer 2)o "^R"": "^R"",(move back to buffer 1)

The result of such macro would be (after 3 iterations would be):

File 2:

{
  "bun": "bun",
  "bar": "bar",
  "foo": "foo",
}

Answer 1

Just for completeness's sake (and so that this doesn't get bumped in six months by Community):

You can put a buffer command (:b) in macros. For your case:

qqggD:b#^Mo^R":b#^Mq

Where "#" is the number of the buffer you want to switch to, ^M is pressing <Enter>, and ^R is pressing <C-r>.

See :h buffer for more info.