anchor.diff:   * W: select the whole WORD
   
   When it makes sense, _alt-i_ selects the inner object and alt-a the whole
  -object. For example _alt-i_ ( will only select the inside of the parenthesis,
  +object. For example _alt-i_ will only select the inside of the parenthesis,
   for words, the difference between _alt-i_ and _alt-a_ is that _alt-a_ also
   selects the following blanks.
   
  
positive.code: --------------
  
   * _space_: select the character under selection end
  
   * _h_: select the character on the right of selection end
   * _j_: select the character below the selection end
  
negative.code:  * _gg_, _gt_: go to the first line
   * _gb_: go to the last line
  
   * _/_: search (select next match)
   * _?_: search (extend to next match)
   * _n_: select next match
   * _N_: add a new selection with next match
   * _alt-n_: replace last selection with next match (preserving the others)
  
   * _alt-c_: center last selection in current window
   * _pageup_: scroll up
   * _pagedown_: scroll down
  
  Appending
  ---------
  
  for most selection commands, using shift permits to extend current selection
  instead of replacing it. for example, _wWW_ selects 3 consecutive words
  
  Using Counts
  