/**
* Parses CSS at-page rule selector; syntax of this selector can be seen in
* CSS 3 specification at http://www.w3.org/TR/css3-page/#syntax-page-selector
*
*
*/
function &parse_css_atpage_selector($selector)
{
switch ($selector) {
case '':
$selector =& new CSSPageSelectorAll();
return $selector;
case ':first':
$selector =& new CSSPageSelectorFirst();
return $selector;
case ':left':
$selector =& new CSSPageSelectorLeft();
return $selector;
case ':right':
$selector =& new CSSPageSelectorRight();
return $selector;
default:
if (CSS::is_identifier($selector)) {
$selector =& new CSSPageSelectorNamed($selector);
return $selector;
} else {
error_log(sprintf('Unknown page selector in @page rule: \'%s\'', $selector));
$selector =& new CSSPageSelectorAll();
return $selector;
}
}
}
