NAME
  llength - Count the number of elements in a list

SYNOPSIS
  llength list

DESCRIPTION
  Treats list as a list and returns a decimal string giving the number of
  elements in it.

EXAMPLE
  % llength {{ABC DEF} GHI {JKL MNO PQR} STU}
  4

  % llength ABC
  1

  % llength {}
  0

SEE ALSO
  lappend lindex linsert list lrange lreplace lsearch lsort