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<?php
/**
* Reads XML documents into a multi dimensional Array.
*
* @author Ulf Wendel <ulf.wendel@phpdoc.de>
*/
class PhpdocXMLReader extends PhpdocObject {
/**
* PHPDocFileHandler object.
* @var object PhpdocFileHandler
* @see createFileHandler()
*/
var $filehandler;
/**
* Values array from xml_parse_into_struct().
* @var array
* @see parse(), stripCloseFromStructvalues(), importXML()
*/
var $structvalues = array();
/**
* Parses a given XML file and returns the data as a hash.
*
* Please do not ask me for a in detail explanation of how it is done,
* the documentation is in the source...
*
* @param string $filename Name of the xml document
* @access public
* @throws PhpdocError
* @see importXML()
*/
function parse($filename) {
if (""==$filename) {
$this->err[] = new PhpdocError("No filename given.", __FILE__, __LINE__);
return array();
}
$parser = @xml_parser_create();
if (!$parser) {
$this->err = PhpdocError("Can't create a XML Parser.", __FILE__, __LINE__);
return array();
}
xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
$this->createFileHandler();
$xml = $this->filehandler->getFile($filename);
$values = array();
$index = array();
xml_parse_into_struct($parser, $xml, &$values, &$index);
xml_parser_free($parser);
$this->structvalues = $values;
$this->stripCloseFromStructvalues();
list($data, $last) = $this->importXML();
$this->structvalues = array();
return $data;
} // end func parse
/**
* Creates a PhpdocFileHandler object and saves it to $filehandler if it does not already exist.
* @see $filehandler
*/
function createFilehandler() {
if (!isset($this->filehandler))
$this->filehandler = new PhpdocFileHandler;
} // end func createFilehandler
/**
* Strips all values out of the xml_parse_intro_struct() values array with the type "open".
*
* @see $structvalues
*/
function stripCloseFromStructvalues() {
$values = array();
reset($this->structvalues);
while (list($k, $v)=each($this->structvalues))
if ("close"!=$v["type"])
$values[] = $v;
$this->structvalues = $values;
} // end func stripCloseFromStructvalues
/**
* Converts an xml_parse_into_struct value array to an array that's simmilar to phpdocs internal arrays.
*
* Well, don't ask me to explain this hack. Just take it as it. For those who want to unterstand and optimize
* it:
* - PHP3 compatibility is a must
* - no XML DOM
* - no eval(), this can't be optimized by the compiler
*
* @param int
* @param int
* @return array $data[0] = daten, $data[1] = some index value used for the recursion
* @see addToArray()
*/
function importXML($start = 0, $allowed_level = 1) {
$data = array();
$last = 0;
for ($i=$start; $i<count($this->structvalues); $i++) {
if ($allowed_level != $this->structvalues[$i]["level"])
break;
$value = (isset($this->structvalues[$i]["value"])) ? $this->structvalues[$i]["value"] : "";
$attribs = (isset($this->structvalues[$i]["attributes"])) ? $this->structvalues[$i]["attributes"] : "";
$tag = $this->structvalues[$i]["tag"];
if ("open" == $this->structvalues[$i]["type"]) {
list($inner, $next) = $this->importXML($i+1, $this->structvalues[$i]["level"]+1);
// append the inner data to the current one
$data = $this->addToArray($data, $tag, $value, $attribs, $inner);
// skip some entries in $this->structvalues
$i = $next;
} else {
// same level, append to the array
$data = $this->addToArray($data, $tag, $value, $attribs);
}
// remember the last index in $this->structvalues we've worked on
$last = $i;
}
return array($data, $last);
} // end func importXML
/**
* Appends some values to an array
* Well, don't ask me; just improve it with the remarks on buildXMLResult()
* @param array
* @param string
* @param string
* @param array
* @param array
* @return array $target
*/
function addToArray($target, $key, $value="", $attributes = "", $inner="") {
if (!isset($target[$key]["value"]) && !isset($target[$key][0])) {
if (""!=$inner)
$target[$key] = $inner;
if (""!=$attributes) {
reset($attributes);
while (list($k, $v)=each($attributes))
$target[$key][$k] = $this->xmldecode($v);
}
$target[$key]["value"] = $this->xmldecode($value);
} else {
if (!isset($target[$key][0])) {
$oldvalue = $target[$key];
$target[$key] = array();
$target[$key][0] = $oldvalue;
if (""!=$inner)
$target[$key][1] = $inner;
if (""!=$attributes) {
reset($attributes);
while (list($k, $v)=each($attributes))
$target[$key][1][$k] = $this->xmldecode($v);
}
$target[$key][1]["value"] = $this->xmldecode($value);
} else {
$index = count($target[$key]);
if (""!=$inner)
$target[$key][$index] = $inner;
if (""!=$attributes) {
reset($attributes);
while (list($k, $v)=each($attributes))
$target[$key][$index][$k] = $this->xmldecode($v);
}
$target[$key][$index]["value"] = $this->xmldecode($value);
}
}
return $target;
} // end func addToArray
function xmldecode($value) {
#return preg_replace( array("@<@", "@>@", "@'@", "@"@", "@&@"), array("<", ">", "'", '"', "&"), $value);
return utf8_decode(preg_replace( array("@<@", "@>@", "@'@", "@"@", "@&@"), array("<", ">", "'", '"', "&"), $value));
} // end func xmldecode
} // end class PhpdocXMLReader
?>
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