code: def escape( x, lb=False ):
      
      # Insert a linebreak? Roughly around the middle of the string,
      if lb:
          l = len(x)
          if l >= 10:
              l >>= 1                     # middle of the string
              s1 = x.find( ' ', l )       # first ws to the right
              s2 = x.rfind( ' ', 0, l )   # first ws to the left
              if s2 > 0:
                  s = s2 if s1<0 or l-s1 > s2-l else s1
                  x = x[:s] + '\\n' + x[s+1:]
              elif s1 > 0:
                  x = x[:s1] + '\\n' + x[s1+1:]
      # Escape HTML reserved characters
      return x.replace("&", "&amp;").replace("<", "&lt;").replace(">", "&gt;").replace('"', "&quot;")
docs: Ensure a string does not contain HTML-reserved characters (including
      double quotes)
      Optionally also insert a linebreak if the string is too long