/**
* Checks if node matches css query filter ":only-of-type"
* @return bool
* @see match()
* @access private
*/
protected function filter_onlytype()
{
if ($this->parent === null) {
return false;
} else {
return count($this->parent->getChildrenByTag($this->tag, 'total', false)) === 1;
}
}
/**
* Minifies javascript using JSMin+
* @param HTML_Node $root
* @param string $indent_string
* @param bool $wrap_comment Wrap javascript in HTML comments (<!-- ~text~ //-->)
* @param bool $recursive
* @return bool|array Array of errors on failure, true on succes
*/
static function minify_javascript(&$root, $indent_string = ' ', $wrap_comment = true, $recursive = true)
{
#php4 JSMin+ doesn't support PHP4
#return true;
#php4e
#php5
include_once 'third party/jsminplus.php';
$errors = array();
foreach ($root->select('script:not-empty > "~text~"', false, $recursive, true) as $c) {
try {
$text = $c->text;
while ($text) {
$text = trim($text);
//Remove comment/CDATA tags at begin and end
if (substr($text, 0, 4) === '<!--') {
$text = substr($text, 5);
continue;
} elseif (strtolower(substr($text, 0, 9)) === '<![cdata[') {
$text = substr($text, 10);
continue;
}
if (($end = substr($text, -3)) && ($end === '-->' || $end === ']]>')) {
$text = substr($text, 0, -3);
continue;
}
break;
}
if (trim($text)) {
$text = JSMinPlus::minify($text);
if ($wrap_comment) {
$text = "<!--\n" . $text . "\n//-->";
}
if ($indent_string && ($wrap_comment || strpos($text, "\n") !== false)) {
$text = indent_text("\n" . $text, $c->indent(), $indent_string);
}
}
$c->text = $text;
} catch (Exception $e) {
$errors[] = array($e, $c->parent->dumpLocation());
}
}
return $errors ? $errors : true;
#php5e
}
/**
* Evaluate root node using custom callback
* @param array $conditions {@link parse_conditions()}
* @param bool|int $recursive
* @param bool $check_root
* @return HTML_Node[]
* @access private
*/
protected function parse_callback($conditions, $recursive = true, $check_root = false)
{
return $this->result = $this->root->getChildrenByMatch($conditions, $recursive, $check_root, $this->custom_filter_map);
}
/**
* Performs a css select query on the root node
* @param string $query
* @param int|bool $index
* @param bool $recursive
* @param bool $check_self
* @return HTML_Node|HTML_Node[]
* @see HTML_Node::select()
*/
public function select($query = '*', $index = false, $recursive = true, $check_self = false)
{
return $this->root->select($query, $index, $recursive, $check_self);
}
/**
* Minifies HTML / removes unneeded whitespace
* @param HTML_Node $root
* @param bool $strip_comments
* @param bool $recursive
*/
static function minify_html(&$root, $strip_comments = true, $recursive = true)
{
if ($strip_comments) {
foreach ($root->select(':comment', false, $recursive, true) as $c) {
$prev = $c->getSibling(-1);
$next = $c->getSibling(1);
$c->delete();
if ($prev && $next && $prev->isText() && $next->isText()) {
$prev->text .= $next->text;
$next->delete();
}
}
}
foreach ($root->select('(!pre + !xmp + !style + !script + !"?php" + !"~text~" + !"~comment~"):not-empty > "~text~"', false, $recursive, true) as $c) {
$c->text = preg_replace('`\\s+`', ' ', $c->text);
}
}
