doCleanup($css); $rulesProcessor = new RuleProcessor(); $rules = $rulesProcessor->splitIntoSeparateRules($css); return $rulesProcessor->convertArrayToObjects($rules, $existingRules); } /** * Get the CSS from the style-tags in the given HTML-string * * @param string $html * * @return string */ public function getCssFromStyleTags($html) { $css = ''; $matches = array(); $htmlNoComments = \preg_replace('||s', '', $html); \preg_match_all('|(.*)|isU', $htmlNoComments, $matches); if (!empty($matches[1])) { foreach ($matches[1] as $match) { $css .= \trim($match) . "\n"; } } return $css; } /** * @param string $css * * @return string */ private function doCleanup($css) { // remove charset $css = \preg_replace('/@charset "[^"]++";/', '', $css); // remove media queries $css = \preg_replace('/@media [^{]*+{([^{}]++|{[^{}]*+})*+}/', '', $css); $css = \str_replace(array("\r", "\n"), '', $css); $css = \str_replace(array("\t"), ' ', $css); $css = \str_replace('"', '\'', $css); $css = \preg_replace('|/\\*.*?\\*/|', '', $css); $css = \preg_replace('/\\s\\s++/', ' ', $css); $css = \trim($css); return $css; } }