mirror of
https://github.com/silverstripe/silverstripe-framework
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MINOR Moved Spyc to /thirdparty externals
git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@56221 467b73ca-7a2a-4603-9d3b-597d59a354a9
This commit is contained in:
Ingo Schommer
parent
388b027844
commit
af114317a9
868
api/Spyc.php
868
api/Spyc.php
@ -1,868 +0,0 @@
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<?php
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/**
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* Spyc -- A Simple PHP YAML Class
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* @version 0.2.(5) -- 2006-12-31
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* @author Chris Wanstrath <chris@ozmm.org>
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* @author Vlad Andersen <vlad@oneiros.ru>
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* @link http://spyc.sourceforge.net/
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* @copyright Copyright 2005-2006 Chris Wanstrath
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* @license http://www.opensource.org/licenses/mit-license.php MIT License
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*/
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/**
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* A node, used by Spyc for parsing YAML.
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* @package sapphire
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* @subpackage misc
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*/
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class YAMLNode {
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/**#@+
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* @access public
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* @var string
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*/
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public $parent;
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public $id;
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/**#@-*/
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/**
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* @access public
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* @var mixed
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*/
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public $data;
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/**
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* @access public
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* @var int
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*/
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public $indent;
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/**
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* @access public
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* @var bool
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*/
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public $children = false;
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/**
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* The constructor assigns the node a unique ID.
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* @access public
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* @return void
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*/
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public function YAMLNode($nodeId) {
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$this->id = $nodeId;
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}
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}
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/**
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* The Simple PHP YAML Class.
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*
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* This class can be used to read a YAML file and convert its contents
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* into a PHP array. It currently supports a very limited subsection of
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* the YAML spec.
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*
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* Usage:
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* <code>
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* $parser = new Spyc;
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* $array = $parser->load($file);
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* </code>
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* @package sapphire
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* @subpackage misc
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*/
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class Spyc {
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/**
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* Load YAML into a PHP array statically
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*
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* The load method, when supplied with a YAML stream (string or file),
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* will do its best to convert YAML in a file into a PHP array. Pretty
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* simple.
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* Usage:
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* <code>
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* $array = Spyc::YAMLLoad('lucky.yaml');
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* print_r($array);
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* </code>
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* @access public
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* @return array
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* @param string $input Path of YAML file or string containing YAML
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*/
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public static function YAMLLoad($input) {
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$spyc = new Spyc;
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return $spyc->load($input);
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}
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/**
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* Dump YAML from PHP array statically
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*
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* The dump method, when supplied with an array, will do its best
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* to convert the array into friendly YAML. Pretty simple. Feel free to
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* save the returned string as nothing.yaml and pass it around.
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*
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* Oh, and you can decide how big the indent is and what the wordwrap
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* for folding is. Pretty cool -- just pass in 'false' for either if
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* you want to use the default.
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*
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* Indent's default is 2 spaces, wordwrap's default is 40 characters. And
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* you can turn off wordwrap by passing in 0.
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*
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* @access public
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* @return string
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* @param array $array PHP array
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* @param int $indent Pass in false to use the default, which is 2
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* @param int $wordwrap Pass in 0 for no wordwrap, false for default (40)
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*/
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public static function YAMLDump($array,$indent = false,$wordwrap = false) {
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$spyc = new Spyc;
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return $spyc->dump($array,$indent,$wordwrap);
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}
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/**
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* Load YAML into a PHP array from an instantiated object
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*
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* The load method, when supplied with a YAML stream (string or file path),
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* will do its best to convert the YAML into a PHP array. Pretty simple.
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* Usage:
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* <code>
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* $parser = new Spyc;
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* $array = $parser->load('lucky.yaml');
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* print_r($array);
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* </code>
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* @access public
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* @return array
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* @param string $input Path of YAML file or string containing YAML
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*/
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public function load($input) {
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// See what type of input we're talking about
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// If it's not a file, assume it's a string
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if (!empty($input) && (strpos($input, "\n") === false)
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&& file_exists($input)) {
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$yaml = file($input);
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} else {
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$yaml = explode("\n",$input);
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}
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// Initiate some objects and values
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$base = new YAMLNode (1);
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$base->indent = 0;
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$this->_lastIndent = 0;
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$this->_lastNode = $base->id;
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$this->_inBlock = false;
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$this->_isInline = false;
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$this->_nodeId = 2;
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foreach ($yaml as $linenum => $line) {
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$ifchk = trim($line);
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// If the line starts with a tab (instead of a space), throw a fit.
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if (preg_match('/^(\t)+(\w+)/', $line)) {
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$err = 'ERROR: Line '. ($linenum + 1) .' in your input YAML begins'.
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' with a tab. YAML only recognizes spaces. Please reformat.';
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die($err);
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}
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if ($this->_inBlock === false && empty($ifchk)) {
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continue;
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} elseif ($this->_inBlock == true && empty($ifchk)) {
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$last =& $this->_allNodes[$this->_lastNode];
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$last->data[key($last->data)] .= "\n";
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} elseif ($ifchk{0} != '#' && substr($ifchk,0,3) != '---') {
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// Create a new node and get its indent
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$node = new YAMLNode ($this->_nodeId);
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$this->_nodeId++;
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$node->indent = $this->_getIndent($line);
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// Check where the node lies in the hierarchy
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if ($this->_lastIndent == $node->indent) {
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// If we're in a block, add the text to the parent's data
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if ($this->_inBlock === true) {
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$parent =& $this->_allNodes[$this->_lastNode];
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$parent->data[key($parent->data)] .= trim($line).$this->_blockEnd;
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} else {
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// The current node's parent is the same as the previous node's
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if (isset($this->_allNodes[$this->_lastNode])) {
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$node->parent = $this->_allNodes[$this->_lastNode]->parent;
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}
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}
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} elseif ($this->_lastIndent < $node->indent) {
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if ($this->_inBlock === true) {
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$parent =& $this->_allNodes[$this->_lastNode];
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$parent->data[key($parent->data)] .= trim($line).$this->_blockEnd;
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} elseif ($this->_inBlock === false) {
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// The current node's parent is the previous node
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$node->parent = $this->_lastNode;
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// If the value of the last node's data was > or | we need to
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// start blocking i.e. taking in all lines as a text value until
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// we drop our indent.
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$parent =& $this->_allNodes[$node->parent];
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$this->_allNodes[$node->parent]->children = true;
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if (is_array($parent->data)) {
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// if (isset ($parent->data[key($parent->data)]))
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$chk = $parent->data[key($parent->data)];
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if ($chk === '>') {
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$this->_inBlock = true;
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$this->_blockEnd = ' ';
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$parent->data[key($parent->data)] =
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str_replace('>','',$parent->data[key($parent->data)]);
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$parent->data[key($parent->data)] .= trim($line).' ';
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$this->_allNodes[$node->parent]->children = false;
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$this->_lastIndent = $node->indent;
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} elseif ($chk === '|') {
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$this->_inBlock = true;
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$this->_blockEnd = "\n";
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$parent->data[key($parent->data)] =
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str_replace('|','',$parent->data[key($parent->data)]);
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$parent->data[key($parent->data)] .= trim($line)."\n";
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$this->_allNodes[$node->parent]->children = false;
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$this->_lastIndent = $node->indent;
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}
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}
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}
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} elseif ($this->_lastIndent > $node->indent) {
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// Any block we had going is dead now
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if ($this->_inBlock === true) {
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$this->_inBlock = false;
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if ($this->_blockEnd = "\n") {
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$last =& $this->_allNodes[$this->_lastNode];
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$last->data[key($last->data)] =
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trim($last->data[key($last->data)]);
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}
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}
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// We don't know the parent of the node so we have to find it
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// foreach ($this->_allNodes as $n) {
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foreach ($this->_indentSort[$node->indent] as $n) {
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if ($n->indent == $node->indent) {
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$node->parent = $n->parent;
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}
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}
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}
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if ($this->_inBlock === false) {
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// Set these properties with information from our current node
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$this->_lastIndent = $node->indent;
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// Set the last node
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$this->_lastNode = $node->id;
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// Parse the YAML line and return its data
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$node->data = $this->_parseLine($line);
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// Add the node to the master list
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$this->_allNodes[$node->id] = $node;
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// Add a reference to the parent list
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$this->_allParent[intval($node->parent)][] = $node->id;
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// Add a reference to the node in an indent array
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$this->_indentSort[$node->indent][] =& $this->_allNodes[$node->id];
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// Add a reference to the node in a References array if this node
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// has a YAML reference in it.
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if (
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( (is_array($node->data)) &&
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isset($node->data[key($node->data)]) &&
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(!is_array($node->data[key($node->data)])) )
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&&
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( (preg_match('/^&([^ ]+)/',$node->data[key($node->data)]))
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||
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(preg_match('/^\*([^ ]+)/',$node->data[key($node->data)])) )
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) {
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$this->_haveRefs[] =& $this->_allNodes[$node->id];
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} elseif (
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( (is_array($node->data)) &&
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isset($node->data[key($node->data)]) &&
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(is_array($node->data[key($node->data)])) )
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) {
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// Incomplete reference making code. Ugly, needs cleaned up.
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foreach ($node->data[key($node->data)] as $d) {
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if ( !is_array($d) &&
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( (preg_match('/^&([^ ]+)/',$d))
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||
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(preg_match('/^\*([^ ]+)/',$d)) )
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) {
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$this->_haveRefs[] =& $this->_allNodes[$node->id];
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}
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}
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}
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}
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}
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}
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unset($node);
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// Here we travel through node-space and pick out references (& and *)
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$this->_linkReferences();
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// Build the PHP array out of node-space
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$trunk = $this->_buildArray();
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return $trunk;
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}
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/**
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* Dump PHP array to YAML
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*
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* The dump method, when supplied with an array, will do its best
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* to convert the array into friendly YAML. Pretty simple. Feel free to
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* save the returned string as tasteful.yaml and pass it around.
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*
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* Oh, and you can decide how big the indent is and what the wordwrap
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* for folding is. Pretty cool -- just pass in 'false' for either if
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* you want to use the default.
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*
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* Indent's default is 2 spaces, wordwrap's default is 40 characters. And
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* you can turn off wordwrap by passing in 0.
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*
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* @access public
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* @return string
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* @param array $array PHP array
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* @param int $indent Pass in false to use the default, which is 2
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* @param int $wordwrap Pass in 0 for no wordwrap, false for default (40)
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*/
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public function dump($array,$indent = false,$wordwrap = false) {
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// Dumps to some very clean YAML. We'll have to add some more features
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// and options soon. And better support for folding.
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// New features and options.
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if ($indent === false or !is_numeric($indent)) {
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$this->_dumpIndent = 2;
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} else {
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$this->_dumpIndent = $indent;
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}
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if ($wordwrap === false or !is_numeric($wordwrap)) {
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$this->_dumpWordWrap = 40;
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} else {
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$this->_dumpWordWrap = $wordwrap;
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}
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// New YAML document
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$string = "---\n";
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// Start at the base of the array and move through it.
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foreach ($array as $key => $value) {
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$string .= $this->_yamlize($key,$value,0);
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}
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return $string;
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}
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/**** Private Properties ****/
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/**#@+
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* @access private
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* @var mixed
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*/
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private $_haveRefs;
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private $_allNodes;
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private $_allParent;
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private $_lastIndent;
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private $_lastNode;
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private $_inBlock;
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private $_isInline;
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private $_dumpIndent;
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private $_dumpWordWrap;
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/**#@-*/
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/**** Public Properties ****/
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/**#@+
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* @access public
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* @var mixed
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*/
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public $_nodeId;
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/**#@-*/
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/**** Private Methods ****/
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/**
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* Attempts to convert a key / value array item to YAML
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* @access private
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* @return string
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* @param $key The name of the key
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* @param $value The value of the item
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* @param $indent The indent of the current node
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*/
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private function _yamlize($key,$value,$indent) {
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if (is_array($value)) {
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// It has children. What to do?
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// Make it the right kind of item
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$string = $this->_dumpNode($key,NULL,$indent);
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// Add the indent
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$indent += $this->_dumpIndent;
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// Yamlize the array
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$string .= $this->_yamlizeArray($value,$indent);
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} elseif (!is_array($value)) {
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// It doesn't have children. Yip.
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$string = $this->_dumpNode($key,$value,$indent);
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}
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return $string;
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}
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/**
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* Attempts to convert an array to YAML
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* @access private
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* @return string
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* @param $array The array you want to convert
|
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* @param $indent The indent of the current level
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*/
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private function _yamlizeArray($array,$indent) {
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if (is_array($array)) {
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$string = '';
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foreach ($array as $key => $value) {
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$string .= $this->_yamlize($key,$value,$indent);
|
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}
|
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return $string;
|
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} else {
|
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return false;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
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* Returns YAML from a key and a value
|
||||
* @access private
|
||||
* @return string
|
||||
* @param $key The name of the key
|
||||
* @param $value The value of the item
|
||||
* @param $indent The indent of the current node
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*/
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private function _dumpNode($key,$value,$indent) {
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// do some folding here, for blocks
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if (strpos($value,"\n") !== false || strpos($value,": ") !== false || strpos($value,"- ") !== false) {
|
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$value = $this->_doLiteralBlock($value,$indent);
|
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} else {
|
||||
$value = $this->_doFolding($value,$indent);
|
||||
}
|
||||
|
||||
if (is_bool($value)) {
|
||||
$value = ($value) ? "true" : "false";
|
||||
}
|
||||
|
||||
$spaces = str_repeat(' ',$indent);
|
||||
|
||||
if (is_int($key)) {
|
||||
// It's a sequence
|
||||
$string = $spaces.'- '.$value."\n";
|
||||
} else {
|
||||
// It's mapped
|
||||
$string = $spaces.$key.': '.$value."\n";
|
||||
}
|
||||
return $string;
|
||||
}
|
||||
|
||||
/**
|
||||
* Creates a literal block for dumping
|
||||
* @access private
|
||||
* @return string
|
||||
* @param $value
|
||||
* @param $indent int The value of the indent
|
||||
*/
|
||||
private function _doLiteralBlock($value,$indent) {
|
||||
$exploded = explode("\n",$value);
|
||||
$newValue = '|';
|
||||
$indent += $this->_dumpIndent;
|
||||
$spaces = str_repeat(' ',$indent);
|
||||
foreach ($exploded as $line) {
|
||||
$newValue .= "\n" . $spaces . trim($line);
|
||||
}
|
||||
return $newValue;
|
||||
}
|
||||
|
||||
/**
|
||||
* Folds a string of text, if necessary
|
||||
* @access private
|
||||
* @return string
|
||||
* @param $value The string you wish to fold
|
||||
*/
|
||||
private function _doFolding($value,$indent) {
|
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// Don't do anything if wordwrap is set to 0
|
||||
if ($this->_dumpWordWrap === 0) {
|
||||
return $value;
|
||||
}
|
||||
|
||||
if (strlen($value) > $this->_dumpWordWrap) {
|
||||
$indent += $this->_dumpIndent;
|
||||
$indent = str_repeat(' ',$indent);
|
||||
$wrapped = wordwrap($value,$this->_dumpWordWrap,"\n$indent");
|
||||
$value = ">\n".$indent.$wrapped;
|
||||
}
|
||||
return $value;
|
||||
}
|
||||
|
||||
/* Methods used in loading */
|
||||
|
||||
/**
|
||||
* Finds and returns the indentation of a YAML line
|
||||
* @access private
|
||||
* @return int
|
||||
* @param string $line A line from the YAML file
|
||||
*/
|
||||
private function _getIndent($line) {
|
||||
preg_match('/^\s{1,}/',$line,$match);
|
||||
if (!empty($match[0])) {
|
||||
$indent = substr_count($match[0],' ');
|
||||
} else {
|
||||
$indent = 0;
|
||||
}
|
||||
return $indent;
|
||||
}
|
||||
|
||||
/**
|
||||
* Parses YAML code and returns an array for a node
|
||||
* @access private
|
||||
* @return array
|
||||
* @param string $line A line from the YAML file
|
||||
*/
|
||||
private function _parseLine($line) {
|
||||
$line = trim($line);
|
||||
|
||||
$array = array();
|
||||
|
||||
if (preg_match('/^-(.*):$/',$line)) {
|
||||
// It's a mapped sequence
|
||||
$key = trim(substr(substr($line,1),0,-1));
|
||||
$array[$key] = '';
|
||||
} elseif ($line[0] == '-' && substr($line,0,3) != '---') {
|
||||
// It's a list item but not a new stream
|
||||
if (strlen($line) > 1) {
|
||||
$value = trim(substr($line,1));
|
||||
// Set the type of the value. Int, string, etc
|
||||
$value = $this->_toType($value);
|
||||
$array[] = $value;
|
||||
} else {
|
||||
$array[] = array();
|
||||
}
|
||||
} elseif (preg_match('/^(.+):/',$line,$key)) {
|
||||
// It's a key/value pair most likely
|
||||
// If the key is in double quotes pull it out
|
||||
if (preg_match('/^(["\'](.*)["\'](\s)*:)/',$line,$matches)) {
|
||||
$value = trim(str_replace($matches[1],'',$line));
|
||||
$key = $matches[2];
|
||||
} else {
|
||||
// Do some guesswork as to the key and the value
|
||||
$explode = explode(':',$line);
|
||||
$key = trim($explode[0]);
|
||||
array_shift($explode);
|
||||
$value = trim(implode(':',$explode));
|
||||
}
|
||||
|
||||
// Set the type of the value. Int, string, etc
|
||||
$value = $this->_toType($value);
|
||||
if (empty($key)) {
|
||||
$array[] = $value;
|
||||
} else {
|
||||
$array[$key] = $value;
|
||||
}
|
||||
}
|
||||
return $array;
|
||||
}
|
||||
|
||||
/**
|
||||
* Finds the type of the passed value, returns the value as the new type.
|
||||
* @access private
|
||||
* @param string $value
|
||||
* @return mixed
|
||||
*/
|
||||
private function _toType($value) {
|
||||
if (preg_match('/^("(.*)"|\'(.*)\')/',$value,$matches)) {
|
||||
$value = (string)preg_replace('/(\'\'|\\\\\')/',"'",end($matches));
|
||||
$value = preg_replace('/\\\\"/','"',$value);
|
||||
} elseif (preg_match('/^\\[(.+)\\]$/',$value,$matches)) {
|
||||
// Inline Sequence
|
||||
|
||||
// Take out strings sequences and mappings
|
||||
$explode = $this->_inlineEscape($matches[1]);
|
||||
|
||||
// Propogate value array
|
||||
$value = array();
|
||||
foreach ($explode as $v) {
|
||||
$value[] = $this->_toType($v);
|
||||
}
|
||||
} elseif (strpos($value,': ')!==false && !preg_match('/^{(.+)/',$value)) {
|
||||
// It's a map
|
||||
$array = explode(': ',$value);
|
||||
$key = trim($array[0]);
|
||||
array_shift($array);
|
||||
$value = trim(implode(': ',$array));
|
||||
$value = $this->_toType($value);
|
||||
$value = array($key => $value);
|
||||
} elseif (preg_match("/{(.+)}$/",$value,$matches)) {
|
||||
// Inline Mapping
|
||||
|
||||
// Take out strings sequences and mappings
|
||||
$explode = $this->_inlineEscape($matches[1]);
|
||||
|
||||
// Propogate value array
|
||||
$array = array();
|
||||
foreach ($explode as $v) {
|
||||
$array = $array + $this->_toType($v);
|
||||
}
|
||||
$value = $array;
|
||||
} elseif (strtolower($value) == 'null' or $value == '' or $value == '~') {
|
||||
$value = NULL;
|
||||
} elseif (preg_match ('/^[0-9]+$/', $value)) {
|
||||
$value = (int)$value;
|
||||
} elseif (in_array(strtolower($value),
|
||||
array('true', 'on', '+', 'yes', 'y'))) {
|
||||
$value = TRUE;
|
||||
} elseif (in_array(strtolower($value),
|
||||
array('false', 'off', '-', 'no', 'n'))) {
|
||||
$value = FALSE;
|
||||
} elseif (is_numeric($value)) {
|
||||
$value = (float)$value;
|
||||
} else {
|
||||
// Just a normal string, right?
|
||||
$value = trim(preg_replace('/#(.+)$/','',$value));
|
||||
}
|
||||
|
||||
return $value;
|
||||
}
|
||||
|
||||
/**
|
||||
* Used in inlines to check for more inlines or quoted strings
|
||||
* @access private
|
||||
* @return array
|
||||
*/
|
||||
private function _inlineEscape($inline) {
|
||||
// There's gotta be a cleaner way to do this...
|
||||
// While pure sequences seem to be nesting just fine,
|
||||
// pure mappings and mappings with sequences inside can't go very
|
||||
// deep. This needs to be fixed.
|
||||
|
||||
$saved_strings = array();
|
||||
|
||||
// Check for strings
|
||||
$regex = '/(?:(")|(?:\'))((?(1)[^"]+|[^\']+))(?(1)"|\')/';
|
||||
if (preg_match_all($regex,$inline,$strings)) {
|
||||
$saved_strings = $strings[0];
|
||||
$inline = preg_replace($regex,'YAMLString',$inline);
|
||||
}
|
||||
unset($regex);
|
||||
|
||||
// Check for sequences
|
||||
if (preg_match_all('/\[(.+)\]/U',$inline,$seqs)) {
|
||||
$inline = preg_replace('/\[(.+)\]/U','YAMLSeq',$inline);
|
||||
$seqs = $seqs[0];
|
||||
}
|
||||
|
||||
// Check for mappings
|
||||
if (preg_match_all('/{(.+)}/U',$inline,$maps)) {
|
||||
$inline = preg_replace('/{(.+)}/U','YAMLMap',$inline);
|
||||
$maps = $maps[0];
|
||||
}
|
||||
|
||||
$explode = explode(', ',$inline);
|
||||
|
||||
|
||||
// Re-add the sequences
|
||||
if (!empty($seqs)) {
|
||||
$i = 0;
|
||||
foreach ($explode as $key => $value) {
|
||||
if (strpos($value,'YAMLSeq') !== false) {
|
||||
$explode[$key] = str_replace('YAMLSeq',$seqs[$i],$value);
|
||||
++$i;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Re-add the mappings
|
||||
if (!empty($maps)) {
|
||||
$i = 0;
|
||||
foreach ($explode as $key => $value) {
|
||||
if (strpos($value,'YAMLMap') !== false) {
|
||||
$explode[$key] = str_replace('YAMLMap',$maps[$i],$value);
|
||||
++$i;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// Re-add the strings
|
||||
if (!empty($saved_strings)) {
|
||||
$i = 0;
|
||||
foreach ($explode as $key => $value) {
|
||||
while (strpos($value,'YAMLString') !== false) {
|
||||
$explode[$key] = preg_replace('/YAMLString/',$saved_strings[$i],$value, 1);
|
||||
++$i;
|
||||
$value = $explode[$key];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return $explode;
|
||||
}
|
||||
|
||||
/**
|
||||
* Builds the PHP array from all the YAML nodes we've gathered
|
||||
* @access private
|
||||
* @return array
|
||||
*/
|
||||
private function _buildArray() {
|
||||
$trunk = array();
|
||||
|
||||
if (!isset($this->_indentSort[0])) {
|
||||
return $trunk;
|
||||
}
|
||||
|
||||
foreach ($this->_indentSort[0] as $n) {
|
||||
if (empty($n->parent)) {
|
||||
$this->_nodeArrayizeData($n);
|
||||
// Check for references and copy the needed data to complete them.
|
||||
$this->_makeReferences($n);
|
||||
// Merge our data with the big array we're building
|
||||
$trunk = $this->_array_kmerge($trunk,$n->data);
|
||||
}
|
||||
}
|
||||
|
||||
return $trunk;
|
||||
}
|
||||
|
||||
/**
|
||||
* Traverses node-space and sets references (& and *) accordingly
|
||||
* @access private
|
||||
* @return bool
|
||||
*/
|
||||
private function _linkReferences() {
|
||||
if (is_array($this->_haveRefs)) {
|
||||
foreach ($this->_haveRefs as $node) {
|
||||
if (!empty($node->data)) {
|
||||
$key = key($node->data);
|
||||
// If it's an array, don't check.
|
||||
if (is_array($node->data[$key])) {
|
||||
foreach ($node->data[$key] as $k => $v) {
|
||||
$this->_linkRef($node,$key,$k,$v);
|
||||
}
|
||||
} else {
|
||||
$this->_linkRef($node,$key);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
function _linkRef(&$n,$key,$k = NULL,$v = NULL) {
|
||||
if (empty($k) && empty($v)) {
|
||||
// Look for &refs
|
||||
if (preg_match('/^&([^ ]+)/',$n->data[$key],$matches)) {
|
||||
// Flag the node so we know it's a reference
|
||||
$this->_allNodes[$n->id]->ref = substr($matches[0],1);
|
||||
$this->_allNodes[$n->id]->data[$key] =
|
||||
substr($n->data[$key],strlen($matches[0])+1);
|
||||
// Look for *refs
|
||||
} elseif (preg_match('/^\*([^ ]+)/',$n->data[$key],$matches)) {
|
||||
$ref = substr($matches[0],1);
|
||||
// Flag the node as having a reference
|
||||
$this->_allNodes[$n->id]->refKey = $ref;
|
||||
}
|
||||
} elseif (!empty($k) && !empty($v)) {
|
||||
if (preg_match('/^&([^ ]+)/',$v,$matches)) {
|
||||
// Flag the node so we know it's a reference
|
||||
$this->_allNodes[$n->id]->ref = substr($matches[0],1);
|
||||
$this->_allNodes[$n->id]->data[$key][$k] =
|
||||
substr($v,strlen($matches[0])+1);
|
||||
// Look for *refs
|
||||
} elseif (preg_match('/^\*([^ ]+)/',$v,$matches)) {
|
||||
$ref = substr($matches[0],1);
|
||||
// Flag the node as having a reference
|
||||
$this->_allNodes[$n->id]->refKey = $ref;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Finds the children of a node and aids in the building of the PHP array
|
||||
* @access private
|
||||
* @param int $nid The id of the node whose children we're gathering
|
||||
* @return array
|
||||
*/
|
||||
private function _gatherChildren($nid) {
|
||||
$return = array();
|
||||
$node =& $this->_allNodes[$nid];
|
||||
if (is_array ($this->_allParent[$node->id])) {
|
||||
foreach ($this->_allParent[$node->id] as $nodeZ) {
|
||||
$z =& $this->_allNodes[$nodeZ];
|
||||
// We found a child
|
||||
$this->_nodeArrayizeData($z);
|
||||
// Check for references
|
||||
$this->_makeReferences($z);
|
||||
// Merge with the big array we're returning
|
||||
// The big array being all the data of the children of our parent node
|
||||
$return = $this->_array_kmerge($return,$z->data);
|
||||
}
|
||||
}
|
||||
return $return;
|
||||
}
|
||||
|
||||
/**
|
||||
* Turns a node's data and its children's data into a PHP array
|
||||
*
|
||||
* @access private
|
||||
* @param array $node The node which you want to arrayize
|
||||
* @return boolean
|
||||
*/
|
||||
private function _nodeArrayizeData(&$node) {
|
||||
if (is_array($node->data) && $node->children == true) {
|
||||
// This node has children, so we need to find them
|
||||
$childs = $this->_gatherChildren($node->id);
|
||||
// We've gathered all our children's data and are ready to use it
|
||||
$key = key($node->data);
|
||||
$key = empty($key) ? 0 : $key;
|
||||
// If it's an array, add to it of course
|
||||
if (isset ($node->data[$key])) {
|
||||
if (is_array($node->data[$key])) {
|
||||
$node->data[$key] = $this->_array_kmerge($node->data[$key],$childs);
|
||||
} else {
|
||||
$node->data[$key] = $childs;
|
||||
}
|
||||
} else {
|
||||
$node->data[$key] = $childs;
|
||||
}
|
||||
} elseif (!is_array($node->data) && $node->children == true) {
|
||||
// Same as above, find the children of this node
|
||||
$childs = $this->_gatherChildren($node->id);
|
||||
$node->data = array();
|
||||
$node->data[] = $childs;
|
||||
}
|
||||
|
||||
// We edited $node by reference, so just return true
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Traverses node-space and copies references to / from this object.
|
||||
* @access private
|
||||
* @param object $z A node whose references we wish to make real
|
||||
* @return bool
|
||||
*/
|
||||
private function _makeReferences(&$z) {
|
||||
// It is a reference
|
||||
if (isset($z->ref)) {
|
||||
$key = key($z->data);
|
||||
// Copy the data to this object for easy retrieval later
|
||||
$this->ref[$z->ref] =& $z->data[$key];
|
||||
// It has a reference
|
||||
} elseif (isset($z->refKey)) {
|
||||
if (isset($this->ref[$z->refKey])) {
|
||||
$key = key($z->data);
|
||||
// Copy the data from this object to make the node a real reference
|
||||
$z->data[$key] =& $this->ref[$z->refKey];
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Merges arrays and maintains numeric keys.
|
||||
*
|
||||
* An ever-so-slightly modified version of the array_kmerge() function posted
|
||||
* to php.net by mail at nospam dot iaindooley dot com on 2004-04-08.
|
||||
*
|
||||
* http://us3.php.net/manual/en/function.array-merge.php
|
||||
*
|
||||
* @access private
|
||||
* @param array $arr1
|
||||
* @param array $arr2
|
||||
* @return array
|
||||
*/
|
||||
private function _array_kmerge($arr1,$arr2) {
|
||||
if(!is_array($arr1)) $arr1 = array();
|
||||
if(!is_array($arr2)) $arr2 = array();
|
||||
|
||||
$keys = array_merge(array_keys($arr1),array_keys($arr2));
|
||||
$vals = array_merge(array_values($arr1),array_values($arr2));
|
||||
$ret = array();
|
||||
foreach($keys as $key) {
|
||||
list($unused,$val) = each($vals);
|
||||
if (isset($ret[$key]) and is_int($key)) $ret[] = $val; else $ret[$key] = $val;
|
||||
}
|
||||
return $ret;
|
||||
}
|
||||
}
|
||||
?>
|
||||
Loading…
Reference in New Issue
Block a user