/**
* Finds all attributes of an HTML element.
*
* Does not modify input. May return "evil" output.
*
* Based on wp_kses_split2() and wp_kses_attr()
*
* @since 4.2.3
*
* @param string $element HTML element/tag
* @return array|bool List of attributes found in $element. Returns false on failure.
*/
function wp_kses_attr_parse($element)
{
$valid = preg_match('%^(<\\s*)(/\\s*)?([a-zA-Z0-9]+\\s*)([^>]*)(>?)$%', $element, $matches);
if (1 !== $valid) {
return false;
}
$begin = $matches[1];
$slash = $matches[2];
$elname = $matches[3];
$attr = $matches[4];
$end = $matches[5];
if ('' !== $slash) {
// Closing elements do not get parsed.
return false;
}
// Is there a closing XHTML slash at the end of the attributes?
if (1 === preg_match('%\\s*/\\s*$%', $attr, $matches)) {
$xhtml_slash = $matches[0];
$attr = substr($attr, 0, -strlen($xhtml_slash));
} else {
$xhtml_slash = '';
}
// Split it
$attrarr = wp_kses_hair_parse($attr);
if (false === $attrarr) {
return false;
}
// Make sure all input is returned by adding front and back matter.
array_unshift($attrarr, $begin . $slash . $elname);
array_push($attrarr, $xhtml_slash . $end);
return $attrarr;
}
/**
* Test new function wp_kses_hair_parse().
*
* @dataProvider data_hair_parse
*/
function test_hair_parse($input, $output)
{
return $this->assertEquals($output, wp_kses_hair_parse($input));
}
