[mkgmap-dev] New style function is_drive_on_left()

Hi Gerd, Have done a quick test and the new function seems to work fine, I will compile a map covering both Zambia and DRC to fully test it. But I have received an error message: Error in style Error: (lines:395) : Error: No function with name 'length()' So it seems the length() function may no longer work. Dave