function csscrush_rgba(CssCrush_Rule $rule)
{
$props = array_keys($rule->properties);
// Determine which properties apply
$rgba_props = array();
foreach ($props as $prop) {
if ($prop === 'background' or strpos($prop, 'color') !== false) {
$rgba_props[] = $prop;
}
}
if (empty($rgba_props)) {
return;
}
$new_set = array();
foreach ($rule as $declaration) {
$is_viable = in_array($declaration->property, $rgba_props);
if ($declaration->skip or !$is_viable or $is_viable and !preg_match('!^rgba___p\\d+___$!', $declaration->value)) {
$new_set[] = $declaration;
continue;
}
// Create rgb value from rgba
$raw_value = $rule->getDeclarationValue($declaration);
$raw_value = substr($raw_value, 5, strlen($raw_value) - 1);
list($r, $g, $b, $a) = explode(',', $raw_value);
// Add rgb value to the stack, followed by rgba
$new_set[] = $rule->createDeclaration($declaration->property, "rgb({$r},{$g},{$b})");
$new_set[] = $declaration;
}
$rule->declarations = $new_set;
}
function csscrush_clip(CssCrush_Rule $rule)
{
// Assume it's been dealt with if the property occurs more than once
if ($rule->propertyCount('clip') !== 1) {
return;
}
$new_set = array();
foreach ($rule as $declaration) {
$new_set[] = $declaration;
if ($declaration->skip or $declaration->property !== 'clip') {
continue;
}
$new_set[] = $rule->createDeclaration('*clip', str_replace(',', ' ', $rule->getDeclarationValue($declaration)));
}
$rule->declarations = $new_set;
}
