Validate a received value for being valid CSS.
Description
Checks for imbalanced braces, brackets, and comments.
Notifications are rendered when the customizer state is saved.
Parameters
$valuestringrequired- CSS to validate.
Source
public function validate( $value ) {
// Restores the more descriptive, specific name for use within this method.
$css = $value;
$validity = new WP_Error();
if ( preg_match( '#</?\w+#', $css ) ) {
$validity->add( 'illegal_markup', __( 'Markup is not allowed in CSS.' ) );
}
if ( ! $validity->has_errors() ) {
$validity = parent::validate( $css );
}
return $validity;
}
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