parser = xml_parser_create();
xml_set_object($this->parser,$this);
xml_set_element_handler($this->parser,"startHandler","endHandler");
xml_set_character_data_handler($this->parser,"cDataHandler");
$this->cur_group = false;
$this->find_fields = false;
$this->group_fields = array();
}
function startHandler($xp, $element, $attribs) {
$element = strtolower($element);
if($element == "group") {
$name = $attribs["NAME"];
if(!$this->cur_group) {
$parent = false;
$this->cur_group = new group($name,$parent);
}
else {
$parent = $this->cur_group;
unset($this->cur_group);
}
if(array_key_exists("FIND_FIELDS",$attribs)) {
$find_fields = trim($attribs["FIND_FIELDS"]);
if($find_fields == "true") {
$this->find_fields = true;
$this->id_field = $name;
}
else {
$this->find_fields = false;
}
}
$this->cur_group = new group($name, $parent);
//echo " ".$this->cur_group->name."
";
}
else {
$this->get_field = true;
$this->data = "";
if(array_key_exists("COUNT",$attribs)){
$this->count = trim($attribs["COUNT"]);
}
else {
$this->count = 1;
}
}
}
function endHandler($xp, $element)
{
$element = strtolower($element);
if($element == "group") {
//echo "moving up from ".$this->cur_group->name." to";
$child = $this->cur_group;
if($child->parent === false) {
//echo " the root
";
}
else {
unset($this->cur_group);
$this->cur_group = $child->parent;
$this->cur_group->add_group($child);
//echo " ".$this->cur_group->name."
";
}
}
else if($this->get_field) {
$this->cur_group->add_field($this->data,$this->count);
if($this->find_fields) {
if(!in_array($this->data,$this->group_fields)) {
$this->group_fields[$this->data] = $this->cur_group->name;
}
}
$this->get_field = false;
$this->count = 1;
}
}
function cDataHandler($xp, $data)
{
if($this->get_field) {
$this->data .= trim($data);
}
}
function create_group_structure($hierarchy_xml,$lexicon_xml)
{
set_time_limit(1000);
//$start = date("r")."
";
$in = fopen($hierarchy_xml,"r");
$xml = "";
while($line = fgets($in)) {
$xml = ereg_replace("&","&",$line);
$good_parse = xml_parse($this->parser,$xml,false);
if(!$good_parse) {
echo "BAD PARSE: ".xml_get_current_line_number($this->parser)."
";
}
}
if($this->find_fields) {
$fl = new fields_loader($lexicon_xml,$this->id_field,$this->group_fields);
$fields = $fl->get_root_fields();
$this->cur_group->fields = $fields;
}
return $this->cur_group;
}
function write_schema($filename) {
$out = fopen($filename,"w");
fwrite($out,$this->cur_group->structure_to_xml());
fclose($out);
}
}
/*
$sl = new schema_loader();
$refgroup = $sl->create_group_structure("AN_schema.xml","");
$segroup = $refgroup->groups["segroup"];
$segroup->parent->name = "foo";
echo "segroup's parent's name: $refgroup->name \n";
$pnagroup = $segroup->groups["pnagroup"];
$pnagroup->parent->name = "goo";
echo "pnagroup's parent's name: $segroup->name \n";
*/
?>