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 1: <?php
 2: 
 3: /**
 4:  * This file is part of the Nette Framework (http://nette.org)
 5:  *
 6:  * Copyright (c) 2004 David Grudl (http://davidgrudl.com)
 7:  *
 8:  * For the full copyright and license information, please view
 9:  * the file license.txt that was distributed with this source code.
10:  */
11: 
12: namespace Nette\Config\Adapters;
13: 
14: use Nette,
15:     Nette\Config\Helpers,
16:     Nette\Utils\Neon;
17: 
18: 
19: /**
20:  * Reading and generating NEON files.
21:  *
22:  * @author     David Grudl
23:  */
24: class NeonAdapter extends Nette\Object implements Nette\Config\IAdapter
25: {
26:     /** @internal */
27:     const INHERITING_SEPARATOR = '<', // child < parent
28:         PREVENT_MERGING = '!';
29: 
30:     /**
31:      * Reads configuration from NEON file.
32:      * @param  string  file name
33:      * @return array
34:      */
35:     public function load($file)
36:     {
37:         return $this->process((array) Neon::decode(file_get_contents($file)));
38:     }
39: 
40: 
41:     private function process(array $arr)
42:     {
43:         $res = array();
44:         foreach ($arr as $key => $val) {
45:             if (substr($key, -1) === self::PREVENT_MERGING) {
46:                 if (!is_array($val) && $val !== NULL) {
47:                     throw new Nette\InvalidStateException("Replacing operator is available only for arrays, item '$key' is not array.");
48:                 }
49:                 $key = substr($key, 0, -1);
50:                 $val[Helpers::EXTENDS_KEY] = Helpers::OVERWRITE;
51: 
52:             } elseif (preg_match('#^(\S+)\s+' . self::INHERITING_SEPARATOR . '\s+(\S+)\z#', $key, $matches)) {
53:                 if (!is_array($val) && $val !== NULL) {
54:                     throw new Nette\InvalidStateException("Inheritance operator is available only for arrays, item '$key' is not array.");
55:                 }
56:                 list(, $key, $val[Helpers::EXTENDS_KEY]) = $matches;
57:                 if (isset($res[$key])) {
58:                     throw new Nette\InvalidStateException("Duplicated key '$key'.");
59:                 }
60:             }
61: 
62:             if (is_array($val)) {
63:                 $val = $this->process($val);
64:             } elseif ($val instanceof Nette\Utils\NeonEntity) {
65:                 $val = (object) array('value' => $val->value, 'attributes' => $this->process($val->attributes));
66:             }
67:             $res[$key] = $val;
68:         }
69:         return $res;
70:     }
71: 
72: 
73:     /**
74:      * Generates configuration in NEON format.
75:      * @return string
76:      */
77:     public function dump(array $data)
78:     {
79:         $tmp = array();
80:         foreach ($data as $name => $secData) {
81:             if ($parent = Helpers::takeParent($secData)) {
82:                 $name .= ' ' . self::INHERITING_SEPARATOR . ' ' . $parent;
83:             }
84:             $tmp[$name] = $secData;
85:         }
86:         return "# generated by Nette\n\n" . Neon::encode($tmp, Neon::BLOCK);
87:     }
88: 
89: }
90: 
Nette Framework 2.0.12 API API documentation generated by ApiGen 2.8.0