protected function ws_trim()
{
if ($this->ws_keep()) {
return;
}
switch (self::$_ws_state) {
case self::WS_SPACE:
$node = $this->_node;
if ($node->nodeName === "#text") {
$node->data = preg_replace("/[ \t\r\n\f]+/u", " ", $text);
if (isset($node->data[0]) && $node->data[0] === " ") {
$node->data = ltrim($node->data);
}
if ($node->data !== "") {
self::$_ws_state = self::WS_TEXT;
if (preg_match("/[ \t\r\n\f]+\$/u", $node->data)) {
$node->data = ltrim($node->data);
}
}
}
break;
case self::WS_TEXT:
}
}
protected function ws_trim()
{
if ($this->ws_keep()) {
return;
}
switch (self::$_ws_state) {
case self::WS_SPACE:
$node = $this->_node;
if ($node->nodeName === "#text") {
$node->data = preg_replace("/[ \t\r\n\f]+/u", " ", $text);
// starts with a whitespace
if (isset($node->data[0]) && $node->data[0] === " ") {
$node->data = ltrim($node->data);
}
// if not empty
if ($node->data !== "") {
// change the current state (text)
self::$_ws_state = self::WS_TEXT;
// ends with a whitespace
if (preg_match("/[ \t\r\n\f]+\$/u", $node->data)) {
$node->data = ltrim($node->data);
}
}
}
break;
case self::WS_TEXT:
}
}
