fixes martanne#949

Autocomplete in INSERT mode by <C-n> completes all selections based on
the suggestions generated by the input at the primary selection's cursor.

lua/plugins/complete-word.lua

@@ -1,4 +1,6 @@
 -- complete word at primary selection location using vis-complete(1)
+-- all non-primary selections will be completed aswell if their cursor
+-- is located at the end of the same word
 
 vis:map(vis.modes.INSERT, "<C-n>", function()
  local win = vis.win
@@ -17,6 +19,20 @@ vis:map(vis.modes.INSERT, "<C-n>", function()
  if err then vis:info(err) end
  return
  end
- file:insert(pos, out)
- win.selection.pos = pos + #out
+ for selection in win:selections_iterator() do
+ local pos = selection.pos
+ if not pos then goto continue end
+
+ local range = file:text_object_word(pos > 0 and pos-1 or pos);
+ if not range then goto continue end
+ if range.finish > pos then range.finish = pos end
+ if range.start == range.finish then goto continue end
+ local localprefix = file:content(range)
+ if not localprefix then goto continue end
+ if localprefix ~= prefix then goto continue end
+
+ file:insert(pos, out)
+ selection.pos = pos + #out
+ ::continue::
+ end
 end, "Complete word in file")