How to invert the selection in vim?

1. select your text

2. "*yggdG"*p which means ...

   "*y    " yank it to the selection register
   ggdG   " delete everything
   "*p    " and paste the selection again 
   

Just for posterity:

:v/\%V/d

That does an inverse global on lines that are not part of the selection. Note that :v is a line-based construct, so any line that contains any of the selection, be it line, stream, or block selection will be spared deletion.

First create the following mapping (for example bound to the <F4> key)

map <F4> :<C-U>1,'<-1:delete<CR>:'>+1,$:delete<CR>

then, after selecting a range in visual mode, just press <F4> to trigger the associated command. The command can be easily explained in parts:

• ":" Enter command line mode.
• "<C-U>" Remove all characters between the cursor position and the beginning of the line.
• "1,'<-1" Specifiy the range from the first line of the file to the line before the start of current selection.
• ":delete<CR>" Delete (the previously specified range of lines).
• ":'>+1,$:delete<CR>" Delete the lines in the range "'>+1,$", i.e. from the line after the end of the selection to the end of the file.

since 'inverting' means basically to create 'multiselections' (the area before and after the original selection) i searched the vimscripts again http://www.vim.org/scripts/script.php?script_id=953. try this.

 There are a number of operations to very
 easily manipulate selections such as modifying 
 the regions (add/delete/inverte/clear), hiding, 
 refreshing, saving and restoring etc."