public static function &loadString($xmlString, $separatorChar = System::crlf)
{
$rv = null;
$lines = explode($separatorChar, $xmlString);
if (count($lines) == 0) {
throw new IllegalArgumentException('données xml non valides');
} else {
$declaration = trim(array_shift($lines));
$matches = array();
preg_match('/<\\?xml(.*?)\\?>$/', $declaration, $matches);
// preg_match( '/^<\?xml(.*?)\?'.'>$/', $declaration, $matches );
// supprimé à cause du BOM des fichiers UTF8
if (0 == count($matches)) {
throw new IllegalArgumentException('La déclaration xml est manquante ou incorrecte');
} else {
$rv = new xmlDocument();
// analyse de la déclaration xml
preg_match_all('/([a-z0-9_-]+)="(.+)"/U', $matches[1], $matches);
if (count($matches) > 0) {
$n_attributes = count($matches[0]);
for ($i = 0; $i < $n_attributes; $i++) {
switch (strtolower($matches[1][$i])) {
case 'encoding':
$rv->setEncoding($matches[2][$i]);
break;
case 'version':
$rv->setVersion($matches[2][$i]);
break;
case 'standalone':
$rv->setStandalone($matches[2][$i]);
break;
}
}
}
// analyse des noeuds
$tmp = implode(System::crlf, $lines);
preg_match_all('/<([^>\\s]*?)([^>]*?)>([^<]*?)/Uims', $tmp, $matches);
if (count($matches) > 0) {
$specialNodeFirstChar = array('!', '?');
$n_entity = count($matches[0]);
$parentNode =& $rv;
$newNode = null;
$lastNodenodeName = $lastNodeHasChild = null;
for ($i = 0; $i < $n_entity; $i++) {
$isCloseTag = '/' == $matches[1][$i][0];
$isSpecialNode = !$isCloseTag && in_array($matches[1][$i][0], $specialNodeFirstChar);
$nodeName = $isCloseTag ? substr($matches[1][$i], 1) : $matches[1][$i];
if ('/' == substr($nodeName, -1)) {
$nodeName = substr($nodeName, 0, -1);
}
$hasChild = !$isSpecialNode && !$isCloseTag && '/' != substr(trim($matches[2][$i]), -1);
$text = trim($matches[3][$i]);
if ($isCloseTag) {
$parentNode =& $newNode->parentNode();
if (strlen($text) > 0) {
$tmp =& $parentNode->parentNode();
$tmp->appendChild(new xmlTextNode($text));
}
$newNode =& $parentNode;
} else {
if (!is_null($newNode)) {
if ($lastNodenodeName == $nodeName) {
$parentNode =& $newNode->parentNode();
} else {
if ($lastNodeHasChild) {
$parentNode =& $newNode;
} else {
$parentNode =& $newNode->parentNode();
}
}
}
if ($isSpecialNode) {
$specialType = substr($nodeName, 0, 1);
$nodeName = substr($nodeName, 1);
if ('!' == $specialType) {
$value = substr(rtrim($matches[0][$i]), 2, -1);
$isCData = '[CDATA[' == substr($value, 0, 7);
if ($isCData) {
$nodeName = '[CDATA[';
$newNode =& new xmlCDataSection(substr($value, strlen($nodeName), -2));
} else {
$nodeName = '--';
$newNode =& new xmlComment(substr($value, strlen($nodeName), -2));
}
} elseif ('?' == $specialType) {
$newNode =& new xmlProcessingInstruction();
} else {
trigger_error('Type inconnu', E_USER_WARNING);
}
} else {
$newNode =& new xmlElement($nodeName);
}
$newNode->nodeName($nodeName);
$attributes = array();
preg_match_all('/([a-z0-9_:-]+)="(.+)"/U', $matches[2][$i], $attributes);
if (count($attributes) > 0 && count($attributes[0]) > 0) {
foreach ($attributes[1] as $idx => $key) {
$newNode->setAttribute($key, $attributes[2][$idx]);
}
}
if (!is_null($parentNode)) {
$parentNode->appendChild($newNode);
}
$lastNodenodeName = $nodeName;
$lastNodeHasChild = $hasChild;
if (strlen($text) > 0) {
if ($hasChild) {
$newNode->appendChild(new xmlTextNode($text));
} else {
$parentNode->appendChild(new xmlTextNode($text));
}
}
}
}
}
}
}
return $rv;
}
