/**
* Compiles the current text block between two XML tags, creating a
* complete Opt_Xml_Text node. It looks for the expressions in the
* curly brackets, extracts them and packs as separate nodes.
*
* Moreover, it replaces the entities with the corresponding characters.
*
* @internal
* @param Opt_Xml_Node $current The current XML node.
* @param String $text The text block between two tags.
* @param Boolean $noExpressions=false If true, do not look for the expressions.
* @return Opt_Xml_Node The current XML node.
*/
protected function _treeTextCompile($current, $text, $noExpressions = false)
{
// Yes, we parse entities, but the text itself should not contain
// any special characters.
if (strcspn($text, '<>') != strlen($text)) {
throw new Opt_XmlInvalidCharacter_Exception(htmlspecialchars($text));
}
if ($noExpressions) {
$current = $this->_treeTextAppend($current, $this->_compiler->parseEntities($text));
}
preg_match_all($this->_rExpressionTag, $text, $result, PREG_SET_ORDER);
$resultSize = sizeof($result);
$offset = 0;
for ($i = 0; $i < $resultSize; $i++) {
$id = strpos($text, $result[$i][0], $offset);
if ($id > $offset) {
$current = $this->_treeTextAppend($current, $this->_compiler->parseEntities(substr($text, $offset, $id - $offset)));
}
$offset = $id + strlen($result[$i][0]);
$current = $this->_treeTextAppend($current, new Opt_Xml_Expression($this->_compiler->parseEntities($result[$i][2])));
}
$i--;
// Now the remaining content of the file
if (strlen($text) > $offset) {
$current = $this->_treeTextAppend($current, $this->_compiler->parseEntities(substr($text, $offset, strlen($text) - $offset)));
}
return $current;
}
