/**
* Parse command line arguments into CLImate arguments.
*
* @throws \Exception if required arguments aren't defined.
* @param array $argv
*/
public function parse(array $argv = null)
{
$cliArguments = $this->arguments($argv);
$unParsedArguments = $this->prefixedArguments($cliArguments);
$this->nonPrefixedArguments($unParsedArguments);
// After parsing find out which arguments were required but not
// defined on the command line.
$missingArguments = $this->filter->missing();
if (count($missingArguments) > 0) {
throw new \Exception('The following arguments are required: ' . $this->summary->short($missingArguments) . '.');
}
}