\be\bl\b:\bL#\b</code></font>',
where `<font color="#82140F"><code>N</code></font>' stands for
the name of the variable/synonym, `<font color="#82140F"><code>L</code></font>' stands for the current level,
and `<font color="#82140F"><code>\b</code></font>' is the backspace character (hexadecimal 08 in the ascii
table).  This string is designed to be strange enough that users are
unlikely to use it themselves.  The coding scheme is not entirely
arbitrary, however; note that if the backspace characters are ign