\printlength{length} prints the value of a LaTeX length in the
units specified by \uselengthunit{unit} ('unit' may be any TeX
length unit except for scaled point, viz., any of: pt, pc, in,
mm, cm, bp, dd or cc). When the unit is pt, the printed length
value will include any stretch or shrink; otherwise these are
not printed. The 'unit' argument may also be PT, in which case
length values will be printed in point units but without any
stretch or shrink values.
date: 2010-09-22 14:58:28 +0200
