103 lines
3.2 KiB
PHP
Executable File
103 lines
3.2 KiB
PHP
Executable File
<?php
|
|
|
|
namespace Illuminate\Support;
|
|
|
|
class NamespacedItemResolver
|
|
{
|
|
/**
|
|
* A cache of the parsed items.
|
|
*
|
|
* @var array
|
|
*/
|
|
protected $parsed = [];
|
|
|
|
/**
|
|
* Parse a key into namespace, group, and item.
|
|
*
|
|
* @param string $key
|
|
* @return array
|
|
*/
|
|
public function parseKey($key)
|
|
{
|
|
// If we've already parsed the given key, we'll return the cached version we
|
|
// already have, as this will save us some processing. We cache off every
|
|
// key we parse so we can quickly return it on all subsequent requests.
|
|
if (isset($this->parsed[$key])) {
|
|
return $this->parsed[$key];
|
|
}
|
|
|
|
// If the key does not contain a double colon, it means the key is not in a
|
|
// namespace, and is just a regular configuration item. Namespaces are a
|
|
// tool for organizing configuration items for things such as modules.
|
|
if (strpos($key, '::') === false) {
|
|
$segments = explode('.', $key);
|
|
|
|
$parsed = $this->parseBasicSegments($segments);
|
|
} else {
|
|
$parsed = $this->parseNamespacedSegments($key);
|
|
}
|
|
|
|
// Once we have the parsed array of this key's elements, such as its groups
|
|
// and namespace, we will cache each array inside a simple list that has
|
|
// the key and the parsed array for quick look-ups for later requests.
|
|
return $this->parsed[$key] = $parsed;
|
|
}
|
|
|
|
/**
|
|
* Parse an array of basic segments.
|
|
*
|
|
* @param array $segments
|
|
* @return array
|
|
*/
|
|
protected function parseBasicSegments(array $segments)
|
|
{
|
|
// The first segment in a basic array will always be the group, so we can go
|
|
// ahead and grab that segment. If there is only one total segment we are
|
|
// just pulling an entire group out of the array and not a single item.
|
|
$group = $segments[0];
|
|
|
|
// If there is more than one segment in this group, it means we are pulling
|
|
// a specific item out of a group and will need to return this item name
|
|
// as well as the group so we know which item to pull from the arrays.
|
|
$item = count($segments) === 1
|
|
? null
|
|
: implode('.', array_slice($segments, 1));
|
|
|
|
return [null, $group, $item];
|
|
}
|
|
|
|
/**
|
|
* Parse an array of namespaced segments.
|
|
*
|
|
* @param string $key
|
|
* @return array
|
|
*/
|
|
protected function parseNamespacedSegments($key)
|
|
{
|
|
[$namespace, $item] = explode('::', $key);
|
|
|
|
// First we'll just explode the first segment to get the namespace and group
|
|
// since the item should be in the remaining segments. Once we have these
|
|
// two pieces of data we can proceed with parsing out the item's value.
|
|
$itemSegments = explode('.', $item);
|
|
|
|
$groupAndItem = array_slice(
|
|
$this->parseBasicSegments($itemSegments), 1
|
|
);
|
|
|
|
return array_merge([$namespace], $groupAndItem);
|
|
}
|
|
|
|
/**
|
|
* Set the parsed value of a key.
|
|
*
|
|
* @param string $key
|
|
* @param array $parsed
|
|
* @return void
|
|
*/
|
|
public function setParsedKey($key, $parsed)
|
|
{
|
|
$this->parsed[$key] = $parsed;
|
|
}
|
|
}
|