| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | namespace Dallgoot\Yaml; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | use Dallgoot\Yaml\{NodeList, Yaml as Y, Regex as R, TypesBuilder as TB}; | 
                            
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                | 6 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  * Constructs the result (YamlObject or array) according to every Node and respecting value | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |  * @author  Stéphane Rebai <[email protected]> | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  * @license Apache 2.0 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |  * @link    TODO : url to specific online doc | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  | final class Builder | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |     public static $_root; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |     private static $_debug; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |     const INVALID_DOCUMENT = "DOCUMENT %d is invalid,"; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |      * Builds a file.  check multiple documents & split if more than one documents | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |      * @param   Node   $_root      The root node : Node with Node->type === YAML::ROOT | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |      * @param   int   $_debug      the level of debugging requested | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |      * @return array|YamlObject      list of documents or just one. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |      * @todo  implement splitting on YAML::DOC_END also | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |     public static function buildContent(Node $_root, int $_debug) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |         self::$_debug = $_debug; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |         $docStarted = 0; | 
                            
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                | 34 |  |  |         $documents = []; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |         $buffer = new NodeList(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |         if ($_root->value instanceof NodeList) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |             $_root->value->setIteratorMode(NodeList::IT_MODE_DELETE); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |         } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |             die("NOT A LIST"); | 
                            
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                | 40 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |         foreach ($_root->value as $child) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |             if ($child->type & Y::DOC_END && $child !== $_root->value->top()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |                 $buffer->push($child); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |                 $documents[] = self::buildDocument($buffer, count($documents)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |                 $buffer = new NodeList(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |             } elseif ($child->type & Y::DOC_START) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |                 if ($buffer->count() === 0) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |                     $buffer->push($child); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |                 } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |                     if (in_array($buffer->getTypes(), [Y::COMMENT, Y::DIRECTIVE])) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |                         $buffer->push($child); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |                     } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |                         $documents[] = self::buildDocument($buffer, count($documents)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |                         $buffer = new NodeList($child); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |                     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |                 } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |             } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |                 $buffer->push($child); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |         $documents[] = self::buildDocument($buffer, count($documents)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |         return count($documents) === 1 ? $documents[0] : $documents; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |     private static function buildDocument(NodeList $list, int $docNum):YamlObject | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |     {var_dump(__METHOD__); | 
                            
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                | 67 |  |  |         self::$_root = new YamlObject; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |         try { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |             $out = self::buildNodeList($list, self::$_root); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |             if (is_string($out)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |                 $out = self::$_root->setText($out); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |         } catch (\Exception $e) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |             throw new \ParseError(sprintf(self::INVALID_DOCUMENT, $docNum)." ".$e->getMessage()."\n ".$e->getFile().':'.$e->getLine()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |         return $out; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |      * Generic function to distinguish between Node and NodeList | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |      * @param Node|NodeList $node   The node. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |      * @param mixed         $parent The parent | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |      * @return mixed  ( description_of_the_return_value ) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |     public static function build(object $node, &$parent = null) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |         if ($node instanceof NodeList) return self::buildNodeList($node, $parent); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |         return self::buildNode($node, $parent); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |      * Builds a node list. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |      * @param NodeList $node   The node | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |      * @param mixed    $parent The parent | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |      * @return mixed    The parent (object|array) or a string representing the NodeList. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |     public static function buildNodeList(NodeList $list, &$parent=null) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |         $list->forceType(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |         $action = function ($child, &$parent, &$out) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  |             self::build($child, $out); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |         }; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  |         $list->type = $list->type ?? Y::RAW; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |         if ($list->type & (Y::RAW|Y::LITTERALS)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |             $tmp = self::buildLitteral($list, $list->type);//var_dump("ICI1",$list, $tmp); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |             return $tmp; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |         } elseif ($list->type & (Y::COMPACT_MAPPING|Y::MAPPING|Y::SET)) {//var_dump("ICI2"); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |             $out = $parent ?? new \StdClass; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |         } elseif ($list->type & (Y::COMPACT_SEQUENCE|Y::SEQUENCE)) {//var_dump("ICI3"); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  |             $out = $parent ?? []; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |         } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |             $out = null;//var_dump("ICI"); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |             $action = function ($child, &$parent, &$out) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |                 if ($child->type & (Y::SCALAR|Y::QUOTED|Y::DOC_START)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |                     $out .= Node2PHP::get($child); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |                 } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |                     self::build($child);//var_dump("HERE"); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  |                 } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  |                 // var_dump("out:".$out); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |             }; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |         foreach ($list as $child) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  |             $action($child, $parent, $out); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |         if ($list->type & (Y::COMPACT_SEQUENCE|Y::COMPACT_MAPPING) && !empty($out)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |             $out = new Compact($out); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |         return is_null($out) ? $parent : $out; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  |      * Builds a node. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  |      * @param Node    $node    The node of any Node->type | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  |      * @param mixed  $parent  The parent | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  |      * @return mixed  The node value as Scalar, Array, Object or Null otherwise. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  |     private static function buildNode(Node $node, &$parent) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  |         extract((array) $node, EXTR_REFS); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |         $actions = [Y::DIRECTIVE => 'buildDirective', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |                     Y::ITEM      => 'buildItem', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |                     Y::KEY       => 'buildKey', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |                     Y::SET_KEY   => 'buildSetKey', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |                     Y::SET_VALUE => 'buildSetValue', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |                     Y::TAG       => 'buildTag', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |         ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  |         if (isset($actions[$type])) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  |             return TB::{$actions[$type]}($node, $parent); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  |         } elseif ($type & Y::COMMENT) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  |             self::$_root->addComment($line, $value); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  |         // } elseif ($type & Y::DOC_START) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  |         //     if (!is_null($value)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  |         //         return self::build($value->value, $self::$_root); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  |         //     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  |         } elseif ($type & (Y::COMPACT_MAPPING|Y::COMPACT_SEQUENCE)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |             return self::buildNodeList($value, $parent); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  |         } elseif ($type & (Y::REF_DEF | Y::REF_CALL)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  |             return TB::buildReference($node, $parent); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  |         } elseif ($value instanceof Node) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |             return self::buildNode($value, $parent); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  |         } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  |             return Node2PHP::get($node); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  |      * Builds a litteral (folded or not) or any NodeList that has YAML::RAW type (like a multiline value) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  |      * @param      NodeList  $children  The children | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  |      * @param      integer   $type      The type | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  |      * @return     string    The litteral. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  |      * @todo : Example 6.1. Indentation Spaces  spaces must be considered as content | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 181 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 182 |  |  |     private static function buildLitteral(NodeList &$list, int $type = Y::RAW):string | 
            
                                                                        
                            
            
                                    
            
            
                | 183 |  |  |     {//var_dump(__METHOD__,$list); | 
            
                                                                        
                            
            
                                    
            
            
                | 184 |  |  |         $result = ''; | 
            
                                                                        
                            
            
                                    
            
            
                | 185 |  |  |         $list->rewind(); | 
            
                                                                        
                            
            
                                    
            
            
                | 186 |  |  |         $refIndent = $list->count() > 0 ? $list->current()->indent : 0; | 
            
                                                                        
                            
            
                                    
            
            
                | 187 |  |  |         if($list->count()) { | 
            
                                                                        
                            
            
                                    
            
            
                | 188 |  |  |             //remove trailing blank | 
            
                                                                        
                            
            
                                    
            
            
                | 189 |  |  |             while ($list->top()->type & Y::BLANK) $list->pop(); | 
            
                                                                        
                            
            
                                    
            
            
                | 190 |  |  |             $separator = [ Y::RAW => '', Y::LITT => "\n", Y::LITT_FOLDED => ' '][$type]; | 
            
                                                                        
                            
            
                                    
            
            
                | 191 |  |  |             foreach ($list as $child) { | 
            
                                                                        
                            
            
                                    
            
            
                | 192 |  |  |                 if ($child->value instanceof NodeList) { | 
            
                                                                        
                            
            
                                    
            
            
                | 193 |  |  |                     $result .= self::buildLitteral($child->value, $type).$separator; | 
            
                                                                        
                            
            
                                    
            
            
                | 194 |  |  |                 } else { | 
            
                                                                        
                            
            
                                    
            
            
                | 195 |  |  |                     self::setLiteralValue($child, $result, $refIndent, $separator, $type); | 
            
                                                                        
                            
            
                                    
            
            
                | 196 |  |  |                 } | 
            
                                                                        
                            
            
                                    
            
            
                | 197 |  |  |             } | 
            
                                                                        
                            
            
                                    
            
            
                | 198 |  |  |         } | 
            
                                                                        
                            
            
                                    
            
            
                | 199 |  |  |         return rtrim($result); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  |     private static function setLiteralValue(Node $node, string &$result, int $refIndent, string $separator, int $type) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 |  |  |         if ($node->type & Y::SCALAR) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  |             $val = $node->value; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  |         } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 207 |  |  |             if ($node->value instanceof Node && !($node->value->type & Y::SCALAR) && preg_match('/(([^:]+:)|( *-)) *$/', $node->raw)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 208 |  |  |                 $childValue = ''; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 209 |  |  |                 self::setLiteralValue($node->value, $childValue, $refIndent, $separator, $type); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 210 |  |  |                 // $val = substr($node->raw.$separator.$childValue, $refIndent); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 211 |  |  |                 // $val = substr($node->raw, $refIndent).$separator.self::buildLitteral(new NodeList($node->value), $type); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 |  |  |                 $val = substr($node->raw, $refIndent).$separator.$childValue; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  |             } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 |  |  |                 $val = substr($node->raw, $refIndent); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 215 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 216 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 217 |  |  |         if ($type & Y::LITT_FOLDED && ($node->indent > $refIndent || ($node->type & Y::BLANK))) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 218 |  |  |             if ($result[-1] === $separator) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 219 |  |  |                 $result[-1] = "\n"; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 220 |  |  |             if ($result[-1] === "\n") | 
            
                                                                                                            
                            
            
                                    
            
            
                | 221 |  |  |                 $result .= $val; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 222 |  |  |             return; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 223 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 224 |  |  |         $result .= $val.$separator; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 225 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 226 |  |  |  | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 227 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 228 |  |  |  | 
            
                        
Let?s assume that you have a directory layout like this:
. |-- OtherDir | |-- Bar.php | `-- Foo.php `-- SomeDir `-- Foo.phpand let?s assume the following content of
Bar.php:If both files
OtherDir/Foo.phpandSomeDir/Foo.phpare loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.phpHowever, as
OtherDir/Foo.phpdoes not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: