Ensured minimap works with invalid utf8 characters.

Author: adamharrison

plugins/minimap.lua

@@ -490,7 +490,13 @@ function MiniMap:draw()
         local start = 1
         while true do
           -- find text followed spaces followed by newline
-          local s, e, w, eol = string.ufind(text, "[^%s]*()[ \t]*()\n?", start)
+          local is_utf8 = text:ulen()
+          local s, e, w, eol
+          if is_utf8 then
+            s, e, w, eol = text:ufind("[^%s]*()[ \t]*()\n?", start)
+          else
+            s, e, w, eol = text:find("[^%s]*()[ \t]*()\n?", start)
+          end
           if not s then break end
           local nchars = w - s
           start = e + 1