ALIAS MODIFIER:
  This modifier is a width specifier that can be used for any
  form of sequence characters.  This is done by placing [<width>]
  after the $ (and after any ^c expressions).  For example:
    $[10]C
  expands to your current channel, in exactly ten characters.  It
  will truncate or pad as neccesary.  If the field width is a 
  negative number, the string will be right justified in the field
  instead of left justified.  A width of zero is ignored.  If you
  get real tricky, you can do things like this:
    $([$CHANNEL_NAME_WIDTH]C)
  This uses the value of the ircII SET variable CHANNEL_NAME_WIDTH
  as the field size for the builtin variable C (the current channel).
  Note that if you do not use the $() structure, $CHANNEL_NAME_WIDTH
  will not be parsed correctly.  if $CHANNEL_NAME_WIDTH is "10" then
  this will be expanded to $[10]C (see above).
 
  Remember that you can use both forms of variable modifiers, but they
  must be in the correct order.  All ^ modifiers must come before any
  [] modifiers.  For example:
    $^.[-10]S
  will right justify your server name and quote any .'s in the 
  server name with a backslash '\'

See Also:
  ALIAS QUOTE
