I use ctags with my Vim and I rely heavily on C-] and C-T to tag back and froth between various functions in my project.
But if the function is in a different file,
This might point you in the right direction:
http://vim.wikia.com/wiki/Open_every_buffer_in_its_own_tabpage
nmap <C-Enter> <C-w><C-]><C-w>T
Does this help ? You could probably figure out something similar for the way back.
Well, we need to decide what would be the wanted behaviour. We can go back to the original tab (not sure how, still investigating) but then the above given mapping is gonna open a new tab next time. So you'll end up with a lot of tabs after a while.
Or we can do <C-w>C
, which will close the opened tab and take us back to the original one. I, personally, prefer this way of working (that way I don't lose my position in the file)
I go to the function I want, make my corrections there then return to the original file from which I started.
Let me know, what would you like (this didn't fit in comments so I put the answer here).
So, this is a feature I would like to see as well.
I'm not sure if it's possible.
What I usually do is
:tabnew :tag somepartsoffunction*
and press tab to use globbing to easily find tag.
Sure, it's not an ideal solution, but it works most of the time.
Unfortunately, with VIM tabbing isn't totally integrated since it's a new feature since 7.0. Most people I know that use VIM weren't even aware of tabs until I told them, so with that, I have a feeling there is no way to do it right now.
(I would love to be proven wrong)