[OT] flex, yacc, and bison

I need to parse this format:

<Database ftpdatabase [hostname[:port]]>
 [<DatabaseID somebody>]
 [<DatabasePWD mypwd>]
 [<Table ftp_users>
  [<Uname uname>]
  [<CryptedPwd cryptedpwd>]
  [<FtpPath ftppath>]
 </Table>]
</Database>

That's all that I currently have.
So, which of these would be the best tool (I know little about any of them).
If anyone gets the urge to just whip out a quick grammar file for me it
would be much appreciated.
Or at least point me to a beginner level tutorial somewhere.

advTHANKSance
	DEJ