ubaldot

def Surround(pre: string, post: string)
  var pre_len = strlen(pre)
  var post_len = strlen(post)
  var [line_start, column_start] = getpos("'<")[1 : 2]
  var [line_end, column_end] = getpos("'>")[1 : 2]
  if line_start > line_end
    var tmp = line_start
    line_start = line_end
    line_end = tmp