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<?php |
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namespace Dallgoot\Yaml; |
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use Dallgoot\Yaml\{NodeList, Yaml as Y, Regex as R, TypesBuilder as TB}; |
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/** |
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* Constructs the result (YamlObject or array) according to every Node and respecting value |
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* |
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* @author Stéphane Rebai <[email protected]> |
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* @license Apache 2.0 |
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* @link TODO : url to specific online doc |
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*/ |
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final class Builder |
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{ |
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public static $_root; |
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private static $_debug; |
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const INVALID_DOCUMENT = "DOCUMENT %d is invalid,"; |
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/** |
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* Builds a file. check multiple documents & split if more than one documents |
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* |
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* @param Node $_root The root node : Node with Node->type === YAML::ROOT |
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* @param int $_debug the level of debugging requested |
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* |
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* @return array|YamlObject list of documents or just one. |
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* @todo implement splitting on YAML::DOC_END also |
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*/ |
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public static function buildContent(Node $_root, int $_debug) |
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{ |
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self::$_debug = $_debug; |
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$docStarted = 0; |
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$documents = []; |
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$buffer = new NodeList(); |
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if ($_root->value instanceof NodeList) { |
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$_root->value->setIteratorMode(NodeList::IT_MODE_DELETE); |
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} else { |
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die("NOT A LIST"); |
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} |
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foreach ($_root->value as $child) { |
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if ($child->type & Y::DOC_END && $child !== $_root->value->top()) { |
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$buffer->push($child); |
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$documents[] = self::buildDocument($buffer, count($documents)); |
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$buffer = new NodeList(); |
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} elseif ($child->type & Y::DOC_START) { |
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if ($buffer->count() === 0) { |
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$buffer->push($child); |
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} else { |
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if (in_array($buffer->getTypes(), [Y::COMMENT, Y::DIRECTIVE])) { |
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$buffer->push($child); |
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} else { |
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$documents[] = self::buildDocument($buffer, count($documents)); |
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$buffer = new NodeList($child); |
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} |
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} |
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} else { |
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$buffer->push($child); |
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} |
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} |
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$documents[] = self::buildDocument($buffer, count($documents)); |
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return count($documents) === 1 ? $documents[0] : $documents; |
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} |
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private static function buildDocument(NodeList $list, int $docNum):YamlObject |
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{var_dump(__METHOD__); |
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self::$_root = new YamlObject; |
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try { |
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$out = self::buildNodeList($list, self::$_root); |
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if (is_string($out)) { |
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$out = self::$_root->setText($out); |
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} |
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} catch (\Exception $e) { |
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throw new \ParseError(sprintf(self::INVALID_DOCUMENT, $docNum)." ".$e->getMessage()."\n ".$e->getFile().':'.$e->getLine()); |
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} |
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return $out; |
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} |
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/** |
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* Generic function to distinguish between Node and NodeList |
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* |
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* @param Node|NodeList $node The node. |
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* @param mixed $parent The parent |
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* |
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* @return mixed ( description_of_the_return_value ) |
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*/ |
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public static function build(object $node, &$parent = null) |
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{ |
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if ($node instanceof NodeList) return self::buildNodeList($node, $parent); |
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return self::buildNode($node, $parent); |
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} |
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/** |
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* Builds a node list. |
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* |
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* @param NodeList $node The node |
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* @param mixed $parent The parent |
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* |
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* @return mixed The parent (object|array) or a string representing the NodeList. |
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*/ |
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public static function buildNodeList(NodeList $list, &$parent=null) |
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{ |
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$list->forceType(); |
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$action = function ($child, &$parent, &$out) { |
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self::build($child, $out); |
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}; |
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$list->type = $list->type ?? Y::RAW; |
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if ($list->type & (Y::RAW|Y::LITTERALS)) { |
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$tmp = self::buildLitteral($list, $list->type);//var_dump("ICI1",$list, $tmp); |
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return $tmp; |
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} elseif ($list->type & (Y::COMPACT_MAPPING|Y::MAPPING|Y::SET)) {//var_dump("ICI2"); |
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$out = $parent ?? new \StdClass; |
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} elseif ($list->type & (Y::COMPACT_SEQUENCE|Y::SEQUENCE)) {//var_dump("ICI3"); |
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$out = $parent ?? []; |
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} else { |
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$out = null;//var_dump("ICI"); |
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$action = function ($child, &$parent, &$out) { |
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if ($child->type & (Y::SCALAR|Y::QUOTED|Y::DOC_START)) { |
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$out .= Node2PHP::get($child); |
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} else { |
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self::build($child);//var_dump("HERE"); |
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} |
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// var_dump("out:".$out); |
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}; |
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} |
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foreach ($list as $child) { |
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$action($child, $parent, $out); |
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} |
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if ($list->type & (Y::COMPACT_SEQUENCE|Y::COMPACT_MAPPING) && !empty($out)) { |
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$out = new Compact($out); |
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} |
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return is_null($out) ? $parent : $out; |
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} |
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/** |
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* Builds a node. |
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* |
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* @param Node $node The node of any Node->type |
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* @param mixed $parent The parent |
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* |
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* @return mixed The node value as Scalar, Array, Object or Null otherwise. |
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*/ |
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private static function buildNode(Node $node, &$parent) |
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{ |
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extract((array) $node, EXTR_REFS); |
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$actions = [Y::DIRECTIVE => 'buildDirective', |
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Y::ITEM => 'buildItem', |
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Y::KEY => 'buildKey', |
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Y::SET_KEY => 'buildSetKey', |
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Y::SET_VALUE => 'buildSetValue', |
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Y::TAG => 'buildTag', |
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]; |
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if (isset($actions[$type])) { |
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return TB::{$actions[$type]}($node, $parent); |
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} elseif ($type & Y::COMMENT) { |
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self::$_root->addComment($line, $value); |
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// } elseif ($type & Y::DOC_START) { |
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// if (!is_null($value)) { |
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// return self::build($value->value, $self::$_root); |
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// } |
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} elseif ($type & (Y::COMPACT_MAPPING|Y::COMPACT_SEQUENCE)) { |
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return self::buildNodeList($value, $parent); |
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} elseif ($type & (Y::REF_DEF | Y::REF_CALL)) { |
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return TB::buildReference($node, $parent); |
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} elseif ($value instanceof Node) { |
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return self::buildNode($value, $parent); |
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} else { |
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return Node2PHP::get($node); |
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} |
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} |
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/** |
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* Builds a litteral (folded or not) or any NodeList that has YAML::RAW type (like a multiline value) |
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* |
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* @param NodeList $children The children |
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* @param integer $type The type |
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* |
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* @return string The litteral. |
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* @todo : Example 6.1. Indentation Spaces spaces must be considered as content |
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*/ |
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private static function buildLitteral(NodeList &$list, int $type = Y::RAW):string |
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{//var_dump(__METHOD__,$list); |
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$result = ''; |
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$list->rewind(); |
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$refIndent = $list->count() > 0 ? $list->current()->indent : 0; |
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if($list->count()) { |
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//remove trailing blank |
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while ($list->top()->type & Y::BLANK) $list->pop(); |
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$separator = [ Y::RAW => '', Y::LITT => "\n", Y::LITT_FOLDED => ' '][$type]; |
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foreach ($list as $child) { |
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if ($child->value instanceof NodeList) { |
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$result .= self::buildLitteral($child->value, $type).$separator; |
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} else { |
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self::setLiteralValue($child, $result, $refIndent, $separator, $type); |
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} |
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} |
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} |
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return rtrim($result); |
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} |
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private static function setLiteralValue(Node $node, string &$result, int $refIndent, string $separator, int $type) |
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{ |
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if ($node->type & Y::SCALAR) { |
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$val = $node->value; |
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} else { |
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if ($node->value instanceof Node && !($node->value->type & Y::SCALAR) && preg_match('/(([^:]+:)|( *-)) *$/', $node->raw)) { |
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$childValue = ''; |
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self::setLiteralValue($node->value, $childValue, $refIndent, $separator, $type); |
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// $val = substr($node->raw.$separator.$childValue, $refIndent); |
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// $val = substr($node->raw, $refIndent).$separator.self::buildLitteral(new NodeList($node->value), $type); |
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$val = substr($node->raw, $refIndent).$separator.$childValue; |
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} else { |
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$val = substr($node->raw, $refIndent); |
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} |
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} |
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if ($type & Y::LITT_FOLDED && ($node->indent > $refIndent || ($node->type & Y::BLANK))) { |
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if ($result[-1] === $separator) |
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$result[-1] = "\n"; |
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if ($result[-1] === "\n") |
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$result .= $val; |
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return; |
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} |
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$result .= $val.$separator; |
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} |
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} |
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Let?s assume that you have a directory layout like this:
and let?s assume the following content of
Bar.php
:If both files
OtherDir/Foo.php
andSomeDir/Foo.php
are 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.php
However, as
OtherDir/Foo.php
does 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: