779 lines
21 KiB
PHP
779 lines
21 KiB
PHP
<?php
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/**
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* Spyc -- A Simple PHP YAML Class
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* @version 0.3
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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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* @package Spyc
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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 Spyc
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*/
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class Spyc {
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/**#@+
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* @access private
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* @var mixed
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*/
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var $_haveRefs;
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var $_allNodes;
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var $_allParent;
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var $_lastIndent;
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var $_lastNode;
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var $_inBlock;
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var $_isInline;
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var $_dumpIndent;
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var $_dumpWordWrap;
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var $_containsGroupAnchor = false;
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var $_containsGroupAlias = false;
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var $path;
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var $result;
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var $LiteralBlockMarkers = array ('>', '|');
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var $LiteralPlaceHolder = '___YAML_Literal_Block___';
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var $SavedGroups = array();
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/**#@+
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* @access public
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* @var mixed
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*/
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var $_nodeId;
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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 $input Path of YAML file or string containing YAML
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*/
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function YAMLLoad($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 $wordwrap Pass in 0 for no wordwrap, false for default (40)
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*/
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function YAMLDump($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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* 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 $wordwrap Pass in 0 for no wordwrap, false for default (40)
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*/
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function dump($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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/**
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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 $indent The indent of the current node
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*/
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function _yamlize($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 $indent The indent of the current level
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*/
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function _yamlizeArray($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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}
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}
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/**
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* Returns YAML from a key and a value
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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 $indent The indent of the current node
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*/
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function _dumpNode($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,$indent);
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} else {
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$value = $this->_doFolding($value,$indent);
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}
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if (is_bool($value)) {
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$value = ($value) ? "true" : "false";
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}
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$spaces = str_repeat(' ',$indent);
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if (is_int($key)) {
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// It's a sequence
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$string = $spaces.'- '.$value."\n";
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} else {
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// It's mapped
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if (strpos($key, ":") !== false) { $key = '"' . $key . '"'; }
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$string = $spaces.$key.': '.$value."\n";
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}
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return $string;
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}
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/**
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* Creates a literal block for dumping
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* @access private
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* @return string
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* @param $value
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* @param $indent int The value of the indent
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*/
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function _doLiteralBlock($value,$indent) {
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$exploded = explode("\n",$value);
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$newValue = '|';
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$indent += $this->_dumpIndent;
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$spaces = str_repeat(' ',$indent);
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foreach ($exploded as $line) {
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$newValue .= "\n" . $spaces . trim($line);
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}
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return $newValue;
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}
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/**
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* Folds a string of text, if necessary
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* @access private
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* @return string
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* @param $value The string you wish to fold
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*/
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function _doFolding($value,$indent) {
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// Don't do anything if wordwrap is set to 0
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if ($this->_dumpWordWrap === 0) {
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return $value;
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}
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if (strlen($value) > $this->_dumpWordWrap) {
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$indent += $this->_dumpIndent;
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$indent = str_repeat(' ',$indent);
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$wrapped = wordwrap($value,$this->_dumpWordWrap,"\n$indent");
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$value = ">\n".$indent.$wrapped;
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}
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return $value;
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}
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/* LOADING FUNCTIONS */
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function load($input) {
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$Source = $this->loadFromSource($input);
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if (empty ($Source)) return array();
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$this->path = array();
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$this->result = array();
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for ($i = 0; $i < count($Source); $i++) {
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$line = $Source[$i];
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$lineIndent = $this->_getIndent($line);
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$this->path = $this->getParentPathByIndent($lineIndent);
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$line = $this->stripIndent($line, $lineIndent);
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if ($this->isComment($line)) continue;
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if ($literalBlockStyle = $this->startsLiteralBlock($line)) {
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$line = rtrim ($line, $literalBlockStyle . "\n");
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$literalBlock = '';
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$line .= $this->LiteralPlaceHolder;
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while (++$i < count($Source) && $this->literalBlockContinues($Source[$i], $lineIndent)) {
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$literalBlock = $this->addLiteralLine($literalBlock, $Source[$i], $literalBlockStyle);
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}
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$i--;
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}
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$lineArray = $this->_parseLine($line);
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if ($literalBlockStyle)
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$lineArray = $this->revertLiteralPlaceHolder ($lineArray, $literalBlock);
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$this->addArray($lineArray, $lineIndent);
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}
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return $this->result;
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}
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function loadFromSource ($input) {
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if (!empty($input) && strpos($input, "\n") === false && file_exists($input))
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return file($input);
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$foo = explode("\n",$input);
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foreach ($foo as $k => $_) {
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$foo[$k] = trim ($_, "\r");
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}
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return $foo;
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}
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/**
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* Finds and returns the indentation of a YAML line
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* @access private
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* @return int
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* @param string $line A line from the YAML file
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*/
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function _getIndent($line) {
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if (!preg_match('/^ +/',$line,$match)) return 0;
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if (!empty($match[0])) return strlen ($match[0]);
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return 0;
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}
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/**
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* Parses YAML code and returns an array for a node
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* @access private
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* @return array
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* @param string $line A line from the YAML file
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*/
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function _parseLine($line) {
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if (!$line) return array();
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$line = trim($line);
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if (!$line) return array();
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$array = array();
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if ($group = $this->nodeContainsGroup($line)) {
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$this->addGroup($line, $group);
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$line = $this->stripGroup ($line, $group);
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}
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if ($this->startsMappedSequence($line))
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return $this->returnMappedSequence($line);
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if ($this->startsMappedValue($line))
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return $this->returnMappedValue($line);
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if ($this->isArrayElement($line))
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return $this->returnArrayElement($line);
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if ($this->isPlainArray($line))
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return $this->returnPlainArray($line);
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return $this->returnKeyValuePair($line);
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}
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/**
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* Finds the type of the passed value, returns the value as the new type.
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* @access private
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* @param string $value
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* @return mixed
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*/
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function _toType($value) {
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if (strpos($value, '#') !== false)
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$value = trim(preg_replace('/#(.+)$/','',$value));
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if (preg_match('/^("(.*)"|\'(.*)\')/',$value,$matches)) {
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$value = (string)preg_replace('/(\'\'|\\\\\')/',"'",end($matches));
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$value = preg_replace('/\\\\"/','"',$value);
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} elseif (preg_match('/^\\[(.+)\\]$/',$value,$matches)) {
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// Inline Sequence
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// Take out strings sequences and mappings
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$explode = $this->_inlineEscape($matches[1]);
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// Propagate value array
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$value = array();
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foreach ($explode as $v) {
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$value[] = $this->_toType($v);
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}
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} elseif (strpos($value,': ')!==false && !preg_match('/^{(.+)/',$value)) {
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// It's a map
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$array = explode(': ',$value);
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$key = trim($array[0]);
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array_shift($array);
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$value = trim(implode(': ',$array));
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$value = $this->_toType($value);
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$value = array($key => $value);
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} elseif (preg_match("/{(.+)}$/",$value,$matches)) {
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// Inline Mapping
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// Take out strings sequences and mappings
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$explode = $this->_inlineEscape($matches[1]);
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// Propogate value array
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$array = array();
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foreach ($explode as $v) {
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$SubArr = $this->_toType($v);
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if (empty($SubArr)) continue;
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if (is_array ($SubArr)) {
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$array[key($SubArr)] = $SubArr[key($SubArr)]; continue;
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}
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$array[] = $SubArr;
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}
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$value = $array;
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} elseif (strtolower($value) == 'null' or $value == '' or $value == '~') {
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$value = null;
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} elseif (preg_match ('/^[0-9]+$/', $value)) {
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$value = (int)$value;
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} elseif (in_array(strtolower($value),
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array('true', 'on', '+', 'yes', 'y'))) {
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$value = true;
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} elseif (in_array(strtolower($value),
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array('false', 'off', '-', 'no', 'n'))) {
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$value = false;
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} elseif (is_numeric($value)) {
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$value = (float)$value;
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} else {
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// Just a normal string, right?
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}
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// print_r ($value);
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return $value;
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}
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/**
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* Used in inlines to check for more inlines or quoted strings
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* @access private
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* @return array
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*/
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function _inlineEscape($inline) {
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// There's gotta be a cleaner way to do this...
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// While pure sequences seem to be nesting just fine,
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// pure mappings and mappings with sequences inside can't go very
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// deep. This needs to be fixed.
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$saved_strings = array();
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// Check for strings
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$regex = '/(?:(")|(?:\'))((?(1)[^"]+|[^\']+))(?(1)"|\')/';
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if (preg_match_all($regex,$inline,$strings)) {
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$saved_strings = $strings[0];
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$inline = preg_replace($regex,'YAMLString',$inline);
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}
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unset($regex);
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// Check for sequences
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if (preg_match_all('/\[(.+)\]/U',$inline,$seqs)) {
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$inline = preg_replace('/\[(.+)\]/U','YAMLSeq',$inline);
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$seqs = $seqs[0];
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}
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// Check for mappings
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if (preg_match_all('/{(.+)}/U',$inline,$maps)) {
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$inline = preg_replace('/{(.+)}/U','YAMLMap',$inline);
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$maps = $maps[0];
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}
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$explode = explode(', ',$inline);
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// Re-add the sequences
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if (!empty($seqs)) {
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$i = 0;
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foreach ($explode as $key => $value) {
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if (strpos($value,'YAMLSeq') !== false) {
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$explode[$key] = str_replace('YAMLSeq',$seqs[$i],$value);
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++$i;
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}
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}
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}
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// Re-add the mappings
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if (!empty($maps)) {
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$i = 0;
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foreach ($explode as $key => $value) {
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if (strpos($value,'YAMLMap') !== false) {
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$explode[$key] = str_replace('YAMLMap',$maps[$i],$value);
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++$i;
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}
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}
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}
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// Re-add the strings
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if (!empty($saved_strings)) {
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$i = 0;
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foreach ($explode as $key => $value) {
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while (strpos($value,'YAMLString') !== false) {
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$explode[$key] = preg_replace('/YAMLString/',$saved_strings[$i],$value, 1);
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++$i;
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$value = $explode[$key];
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}
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}
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}
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return $explode;
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}
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function literalBlockContinues ($line, $lineIndent) {
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if (!trim($line)) return true;
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if ($this->_getIndent($line) > $lineIndent) return true;
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return false;
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}
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function addArrayInline ($array, $indent) {
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$CommonGroupPath = $this->path;
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if (empty ($array)) return false;
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foreach ($array as $k => $_) {
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$this->addArray(array($k => $_), $indent);
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$this->path = $CommonGroupPath;
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}
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return true;
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}
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function addArray ($array, $indent) {
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if (count ($array) > 1)
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return $this->addArrayInline ($array, $indent);
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$key = key ($array);
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if (!isset ($array[$key])) return false;
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if ($array[$key] === array()) { $array[$key] = ''; };
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$value = $array[$key];
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// Unfolding inner array tree as defined in $this->_arrpath.
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//$_arr = $this->result; $_tree[0] = $_arr; $i = 1;
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$tempPath = Spyc::flatten ($this->path);
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eval ('$_arr = $this->result' . $tempPath . ';');
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if ($this->_containsGroupAlias) {
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do {
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if (!isset($this->SavedGroups[$this->_containsGroupAlias])) { echo "Bad group name: $this->_containsGroupAlias."; break; }
|
|
$groupPath = $this->SavedGroups[$this->_containsGroupAlias];
|
|
eval ('$value = $this->result' . Spyc::flatten ($groupPath) . ';');
|
|
} while (false);
|
|
$this->_containsGroupAlias = false;
|
|
}
|
|
|
|
|
|
// Adding string or numeric key to the innermost level or $this->arr.
|
|
if ($key)
|
|
$_arr[$key] = $value;
|
|
else {
|
|
if (!is_array ($_arr)) { $_arr = array ($value); $key = 0; }
|
|
else { $_arr[] = $value; end ($_arr); $key = key ($_arr); }
|
|
|
|
}
|
|
|
|
$this->path[$indent] = $key;
|
|
|
|
eval ('$this->result' . $tempPath . ' = $_arr;');
|
|
|
|
if ($this->_containsGroupAnchor) {
|
|
$this->SavedGroups[$this->_containsGroupAnchor] = $this->path;
|
|
$this->_containsGroupAnchor = false;
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
function flatten ($array) {
|
|
$tempPath = array();
|
|
if (!empty ($array)) {
|
|
foreach ($array as $_) {
|
|
if (!is_int($_)) $_ = "'$_'";
|
|
$tempPath[] = "[$_]";
|
|
}
|
|
}
|
|
//end ($tempPath); $latestKey = key($tempPath);
|
|
$tempPath = implode ('', $tempPath);
|
|
return $tempPath;
|
|
}
|
|
|
|
|
|
|
|
function startsLiteralBlock ($line) {
|
|
$lastChar = substr (trim($line), -1);
|
|
if (in_array ($lastChar, $this->LiteralBlockMarkers))
|
|
return $lastChar;
|
|
return false;
|
|
}
|
|
|
|
function addLiteralLine ($literalBlock, $line, $literalBlockStyle) {
|
|
$line = $this->stripIndent($line);
|
|
$line = str_replace ("\r\n", "\n", $line);
|
|
|
|
if ($literalBlockStyle == '|') {
|
|
return $literalBlock . $line;
|
|
}
|
|
if (strlen($line) == 0) return $literalBlock . "\n";
|
|
|
|
// echo "|$line|";
|
|
if ($line != "\n")
|
|
$line = trim ($line, "\r\n ") . " ";
|
|
|
|
return $literalBlock . $line;
|
|
}
|
|
|
|
function revertLiteralPlaceHolder ($lineArray, $literalBlock) {
|
|
|
|
foreach ($lineArray as $k => $_) {
|
|
if (is_array($_))
|
|
$lineArray[$k] = $this->revertLiteralPlaceHolder ($_, $literalBlock);
|
|
else{
|
|
if (substr($_, -1 * strlen ($this->LiteralPlaceHolder)) == $this->LiteralPlaceHolder)
|
|
$lineArray[$k] = rtrim ($literalBlock, " \r\n");
|
|
}
|
|
}
|
|
return $lineArray;
|
|
}
|
|
|
|
function stripIndent ($line, $indent = -1) {
|
|
if ($indent == -1) $indent = $this->_getIndent($line);
|
|
return substr ($line, $indent);
|
|
}
|
|
|
|
function getParentPathByIndent ($indent) {
|
|
|
|
if ($indent == 0) return array();
|
|
|
|
$linePath = $this->path;
|
|
do {
|
|
end($linePath); $lastIndentInParentPath = key($linePath);
|
|
if ($indent <= $lastIndentInParentPath) array_pop ($linePath);
|
|
} while ($indent <= $lastIndentInParentPath);
|
|
return $linePath;
|
|
}
|
|
|
|
|
|
function clearBiggerPathValues ($indent) {
|
|
|
|
|
|
if ($indent == 0) $this->path = array();
|
|
if (empty ($this->path)) return true;
|
|
|
|
foreach ($this->path as $k => $_) {
|
|
if ($k > $indent) unset ($this->path[$k]);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
function isComment ($line) {
|
|
if (preg_match('/^#/', $line)) return true;
|
|
if (trim($line, " \r\n\t") == '---') return true;
|
|
return false;
|
|
}
|
|
|
|
function isArrayElement ($line) {
|
|
if (!$line) return false;
|
|
if ($line[0] != '-') return false;
|
|
if (strlen ($line) > 3)
|
|
if (substr($line,0,3) == '---') return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
function isHashElement ($line) {
|
|
if (!preg_match('/^(.+?):/', $line, $matches)) return false;
|
|
$allegedKey = $matches[1];
|
|
if ($allegedKey) return true;
|
|
//if (substr_count($allegedKey, )
|
|
return false;
|
|
}
|
|
|
|
function isLiteral ($line) {
|
|
if ($this->isArrayElement($line)) return false;
|
|
if ($this->isHashElement($line)) return false;
|
|
return true;
|
|
}
|
|
|
|
|
|
function startsMappedSequence ($line) {
|
|
if (preg_match('/^-(.*):$/',$line)) return true;
|
|
}
|
|
|
|
function returnMappedSequence ($line) {
|
|
$array = array();
|
|
$key = trim(substr(substr($line,1),0,-1));
|
|
$array[$key] = '';
|
|
return $array;
|
|
}
|
|
|
|
function returnMappedValue ($line) {
|
|
$array = array();
|
|
$key = trim(substr($line,0,-1));
|
|
$array[$key] = '';
|
|
return $array;
|
|
}
|
|
|
|
function startsMappedValue ($line) {
|
|
if (preg_match('/^(.*):$/',$line)) return true;
|
|
}
|
|
|
|
function isPlainArray ($line) {
|
|
if (preg_match('/^\[(.*)\]$/', $line)) return true;
|
|
return false;
|
|
}
|
|
|
|
function returnPlainArray ($line) {
|
|
return $this->_toType($line);
|
|
}
|
|
|
|
function returnKeyValuePair ($line) {
|
|
|
|
$array = array();
|
|
|
|
if (preg_match('/^(.+):/',$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 $array;
|
|
|
|
}
|
|
|
|
|
|
function returnArrayElement ($line) {
|
|
if (strlen($line) <= 1) return array(array()); // Weird %)
|
|
$array = array();
|
|
$value = trim(substr($line,1));
|
|
$value = $this->_toType($value);
|
|
$array[] = $value;
|
|
return $array;
|
|
}
|
|
|
|
|
|
function nodeContainsGroup ($line) {
|
|
$symbolsForReference = 'A-z0-9_\-';
|
|
if (strpos($line, '&') === false && strpos($line, '*') === false) return false; // Please die fast ;-)
|
|
if (preg_match('/^(&['.$symbolsForReference.']+)/', $line, $matches)) return $matches[1];
|
|
if (preg_match('/^(\*['.$symbolsForReference.']+)/', $line, $matches)) return $matches[1];
|
|
if (preg_match('/(&['.$symbolsForReference.']+$)/', $line, $matches)) return $matches[1];
|
|
if (preg_match('/(\*['.$symbolsForReference.']+$)/', $line, $matches)) return $matches[1];
|
|
return false;
|
|
}
|
|
|
|
function addGroup ($line, $group) {
|
|
if (substr ($group, 0, 1) == '&') $this->_containsGroupAnchor = substr ($group, 1);
|
|
if (substr ($group, 0, 1) == '*') $this->_containsGroupAlias = substr ($group, 1);
|
|
//print_r ($this->path);
|
|
}
|
|
|
|
function stripGroup ($line, $group) {
|
|
$line = trim(str_replace($group, '', $line));
|
|
return $line;
|
|
}
|
|
|
|
|
|
}
|
|
?>
|