difficult alias

[Ray Andrews <rayandrews@xxxxxxxxxxx>]

     % var="now is the time"
      
      %  alias tst='echo $var | sed '\'s/the/THE/g\'''
      
      ... works.  But:
      
      % alias tst='echo $var | fold -sw 80 | sed '\':a;N;$!ba;s/\n/\n   
      /g\'''
      zsh: command not found: N
      zsh: now is the time not found
      
      ... can that alias be repaired?  The command run directly is fine,
      but the obscure stuff at the beginning of the 'sed' doesn't want
      to be aliased.  zsh seems to take the >:a;N;$!ba;< stuff as not being part of the
      sed.  AI recommended that BTW, I have no idea what it means, but
      it seems to make >\n\n   < possible which it wouldn't
      otherwise be.  Unless there's a  better way entirely ...
      
      It just moves a block of text that's otherwise unwrapped into a
      nicer display: word wrap at 80 columns and spaced off the left
      margin by four chars.  Frivolous but I like it.