PEAR2_Console_CommandLine is a full featured package for managing command-line options and arguments highly inspired from python optparse module, it allows the developer to easily build complex command line interfaces. Main features: * handles sub commands (ie. $ myscript.php -q subcommand -f file), * can be completely built from an xml definition file, * generate --help and --version options automatically, * can be completely customized, * builtin support for i18n, * and much more...