MDL-18974 - Remove phpxml library

This embeded library was only used by the tag_youtube block, we now depend on
php5 and simplexml so these libraries can be used instead (as an aside Eloy
also the performance/memory usage to be far more efficient)

diff --git a/lib/phpxml/xml.php b/lib/phpxml/xml.php
deleted file mode 100644 (file)
index 422d0f1..0000000
--- a/lib/phpxml/xml.php
+++ /dev/null
@@ -1,118 +0,0 @@
-<?php
-###################################################################################
-#
-# XML Library, by Keith Devens, version 1.2b
-# http://keithdevens.com/software/phpxml
-#
-# This code is Open Source, released under terms similar to the Artistic License.
-# Read the license at http://keithdevens.com/software/license
-#
-###################################################################################
-
-###################################################################################
-# XML_unserialize: takes raw XML as a parameter (a string)
-# and returns an equivalent PHP data structure
-###################################################################################
-function & XML_unserialize(&$xml){
-       $xml_parser = &new XML();
-       $data = &$xml_parser->parse($xml);
-       $xml_parser->destruct();
-       return $data;
-}
-###################################################################################
-# XML_serialize: serializes any PHP data structure into XML
-# Takes one parameter: the data to serialize. Must be an array.
-###################################################################################
-function & XML_serialize(&$data, $level = 0, $prior_key = NULL){
-       if($level == 0){ ob_start(); echo '<?xml version="1.0" ?>',"\n"; }
-       while(list($key, $value) = each($data))
-               if(!strpos($key, ' attr')) #if it's not an attribute
-                       #we don't treat attributes by themselves, so for an empty element
-                       # that has attributes you still need to set the element to NULL
-
-                       if(is_array($value) and array_key_exists(0, $value)){
-                               XML_serialize($value, $level, $key);
-                       }else{
-                               $tag = $prior_key ? $prior_key : $key;
-                               echo str_repeat("\t", $level),'<',$tag;
-                               if(array_key_exists("$key attr", $data)){ #if there's an attribute for this element
-                                       while(list($attr_name, $attr_value) = each($data["$key attr"]))
-                                               echo ' ',$attr_name,'="',htmlspecialchars($attr_value),'"';
-                                       reset($data["$key attr"]);
-                               }
-
-                               if(is_null($value)) echo " />\n";
-                               elseif(!is_array($value)) echo '>',htmlspecialchars($value),"</$tag>\n";
-                               else echo ">\n",XML_serialize($value, $level+1),str_repeat("\t", $level),"</$tag>\n";
-                       }
-       reset($data);
-       if($level == 0){ $str = &ob_get_contents(); ob_end_clean(); return $str; }
-}
-###################################################################################
-# XML class: utility class to be used with PHP's XML handling functions
-###################################################################################
-class XML{
-       var $parser;   #a reference to the XML parser
-       var $document; #the entire XML structure built up so far
-       var $parent;   #a pointer to the current parent - the parent will be an array
-       var $stack;    #a stack of the most recent parent at each nesting level
-       var $last_opened_tag; #keeps track of the last tag opened.
-
-       function XML(){
-               $this->parser = &xml_parser_create();
-               xml_parser_set_option($this->parser, XML_OPTION_CASE_FOLDING, false);
-               xml_set_object($this->parser, $this);
-               xml_set_element_handler($this->parser, 'open','close');
-               xml_set_character_data_handler($this->parser, 'data');
-       }
-       function destruct(){ xml_parser_free($this->parser); }
-       //function & parse(&$data){  // Changed for Moodle MDL-13631
-       function parse(&$data){
-               $this->document = array();
-               $this->stack    = array();
-               $this->parent   = &$this->document;
-               return xml_parse($this->parser, $data, true) ? $this->document : NULL;
-       }
-       function open(&$parser, $tag, $attributes){
-               $this->data = ''; #stores temporary cdata
-               $this->last_opened_tag = $tag;
-               if(is_array($this->parent) and array_key_exists($tag,$this->parent)){ #if you've seen this tag before
-                       if(is_array($this->parent[$tag]) and array_key_exists(0,$this->parent[$tag])){ #if the keys are numeric
-                               #this is the third or later instance of $tag we've come across
-                               $key = count_numeric_items($this->parent[$tag]);
-                       }else{
-                               #this is the second instance of $tag that we've seen. shift around
-                               if(array_key_exists("$tag attr",$this->parent)){
-                                       $arr = array('0 attr'=>&$this->parent["$tag attr"], &$this->parent[$tag]);
-                                       unset($this->parent["$tag attr"]);
-                               }else{
-                                       $arr = array(&$this->parent[$tag]);
-                               }
-                               $this->parent[$tag] = &$arr;
-                               $key = 1;
-                       }
-                       $this->parent = &$this->parent[$tag];
-               }else{
-                       $key = $tag;
-               }
-               if($attributes) $this->parent["$key attr"] = $attributes;
-               $this->parent  = &$this->parent[$key];
-               $this->stack[] = &$this->parent;
-       }
-       function data(&$parser, $data){
-               if($this->last_opened_tag != NULL) #you don't need to store whitespace in between tags
-                       $this->data .= $data;
-       }
-       function close(&$parser, $tag){
-               if($this->last_opened_tag == $tag){
-                       $this->parent = $this->data;
-                       $this->last_opened_tag = NULL;
-               }
-               array_pop($this->stack);
-               if($this->stack) $this->parent = &$this->stack[count($this->stack)-1];
-       }
-}
-function count_numeric_items(&$array){
-       return is_array($array) ? count(array_filter(array_keys($array), 'is_numeric')) : 0;
-}
-?>