/**
* Parses an argument starting with the short option prefix "-"
* @param Event $event
* @param string $arg
* @return $this
* @throws
*/
public function parseShortOption(Event $event, $arg)
{
$i = 1;
$len = strlen($arg);
while ($i < $len) {
//get the shortcut
$shortcut = substr($arg, $i, 1);
//check for a value
if (substr($arg, $i + 1, 1) == '=') {
//get the value
$value = strlen($arg) > $i + 2 ? substr($arg, $i + 2) : '';
//set the option value
$event->setOption($shortcut, $value);
//we've finished reading the argument
break;
} else {
//set the option value
$event->setOption($shortcut, null);
}
++$i;
}
return $this;
}
/**
* Validates that the console options/arguments meets the definition
* @param Event $event
* @return $this
* @throws
*/
public function validate(Event $event)
{
foreach ($this->getOptions() as $option) {
if ($event->hasOption($option->getNames())) {
//get the value
$value = $event->getOption($option->getNames(), $option->getDefault());
//check whether a value is allowed
if (!$option->isValueAllowed() && !is_null($value)) {
throw new \RuntimeException("Option \"{$option->getName()}\" cannot have a value.");
}
//check whether a value is required
if ($option->isValueRequired() && is_null($value)) {
throw new \RuntimeException("Option \"{$option->getName()}\" requires a value.");
}
//filter the value
$filter = $option->getFilter();
if ($filter) {
$value = call_user_func($filter, $value);
}
//update the value
if ($event->hasOption($option->getShortName())) {
$event->setOption($option->getShortName(), $value);
} else {
$event->setOption($option->getLongName(), $value);
}
//validate the value
$validator = $option->getValidator();
if ($validator) {
if (call_user_func($validator, $value) == false) {
throw new \RuntimeException("Option \"{$option->getName()}\" is invalid.");
}
}
} else {
//check whether the option is required
if ($option->isRequired()) {
throw new \RuntimeException("Option \"{$option->getName()}\" is required.");
}
//get the default value
$default = $option->getDefault();
//set the default value
if ($option->isValueAllowed() && !is_null($default)) {
$event->setOption($option->getLongName(), $default);
}
}
}
}
