(virtual-font
  (rubber-lparenthesis-#
    (vglue #239D
      (vglue (ver-take #239C 0.5 # 0.25)
        #239B)))
  (rubber-rparenthesis-#
    (vglue #23A0
      (vglue (ver-take #239F 0.5 # 0.25)
        #239E)))
  (rubber-lbracket-#
    (vglue #23A3
      (vglue (ver-take #23A2 0.5 # 0.25)
        #23A1)))
  (rubber-rbracket-#
    (vglue #23A6
      (vglue (ver-take #23A5 0.5 # 0.25)
        #23A4)))
  (rubber-lcurly-#
    (vglue #23A9
      (vglue (ver-take #23AA 0.5 # 0.125)
        (vglue #23A8
          (vglue (ver-take #23AA 0.5 # 0.125)
            #23A7)))))
  (rubber-rcurly-#
    (vglue #23AD
      (vglue (ver-take #23AA 0.5 # 0.125)
        (vglue #23AC
          (vglue (ver-take #23AA 0.5 # 0.125)
            #23AB)))))
  (rubber-lfloor-#
    (vglue #23A3
      (ver-take #23A2 0.5 # 0.25)))
  (rubber-lceil-#
    (vglue (ver-take #23A2 0.5 # 0.25)
      #23A1))
  (rubber-rfloor-#
    (vglue #23A6
      (ver-take #23A5 0.5 # 0.25)))
  (rubber-rceil-#
    (vglue (ver-take #23A5 0.5 # 0.25)
      #23A4))
  (rubber-bar-#
    (ver-take | 0.5 # 0.25))
  (rubber-parallel-#
    (ver-take || 0.5 # 0.25))
  (rubber-interleave-#
    (ver-take interleave 0.5 # 0.25)))