test.lua

vis:command_register("sts", function(argv, force, win, selection, range)                                                                                                                                                                       
    if vis.win.strip_trailing_spaces then                                                                                                                                                                                                      
        vis:command("x/ +$/ c//<Enter>")                                                                                                                                                                                                       
        vis:command(":x/ +$/ c//<Enter>")                                                                                                                                                                                                      
        vis:command(":x/ +$/ c//<Enter>:w<Enter>")                                                                                                                                                                                             
        -- vis:map(vis.modes.NORMAL, ';w', ':x/ +$/ c//<Enter>:w<Enter>')                                                                                                                                                                              vis:info("Line trailing spaces trimmed.")                                                                                                                                                                                              
    end                                                                                                                                                                                                                                        
    return true;                                                                                                                                                                                                                               
end, "Strip line trailing spaces")