public function resolve($imported_files = array())
{
if (empty($imported_files)) {
$imported_files[] = $this->stylesheet->getHref();
}
$encoding = $this->stylesheet->getCharset();
$lexer = new Lexer();
$parser = new Parser($lexer);
$url_resolver = new UrlResolver($this->stylesheet, $this->base_url);
$url_resolver->resolve();
foreach ($this->stylesheet->getRuleList()->getRules() as $rule) {
if ($rule instanceof Rule\Import) {
$url = $rule->getHref()->getUrl()->getString();
// Take care of circular imports !
if (in_array($url, $imported_files)) {
continue;
} else {
$imported_files[] = $url;
}
try {
$source = Loader::load($url, $encoding);
} catch (StyleSheetNotFoundException $e) {
// FIXME: should we remove the rule ?
continue;
}
// Do the parsing
$lexer->setSource($source);
$stylesheet = $parser->parseStyleSheet();
// Remove charset rules
$rule_list = $stylesheet->getRuleList();
foreach ($rule_list->getItems() as $sub_rule) {
if ($sub_rule instanceof Rule\Charset) {
$stylesheet->getRuleList()->remove($sub_rule);
// Only one charset is allowed, so we can
break;
}
}
$rule_list->resetKeys();
// Do the recurse
$resolver = new ImportResolver($stylesheet);
$resolver->resolve($imported_files);
// Wrap into media query if needed
if ($rule->getMediaQueryList() !== null && !$rule->getMediaQueryList()->isEmpty()) {
$media_query = new Rule\Media($rule->getMediaQueryList(), $rule_list);
$this->stylesheet->getRuleList()->replace($rule, $media_query);
} else {
$this->stylesheet->getRuleList()->replace($rule, $rule_list->getItems());
}
}
}
}
/* Discards the rule til end of stylesheet, since no matching bracket can be found */
/*p{ foo:bar; foo{;bar("baz)};"; baz:boo }
h1{}*/
EOS;
$timer = new Benchmark_Timer();
//$nb_iterations = 1;
$timer->start();
$source = new Source\String($css);
$timer->setMarker(sprintf("Source init: %s", $source->getEncoding()));
$lexer = new Css\Lexer();
$lexer->setSource($source);
$timer->setMarker("Lexer init");
//$token = $lexer->nextToken();
//while ($token->type !== Css\Lexer::T_EOF) {
//echo $lexer->getLiteral($token) . PHP_EOL;
//$token = $lexer->nextToken();
//}
//echo $lexer->getLiteral($token) . PHP_EOL;
//$timer->setMarker("Tokenization end");
$parser = new Css\Parser($lexer);
$parser->setStrict(false);
$stylesheet = $parser->parseStyleSheet();
$timer->setMarker("Parsing end");
foreach ($parser->errors as $error) {
echo "Start: " . $lexer->getLiteral($error['start']) . "\n";
echo "End: " . $lexer->getLiteral($error['end']) . "\n";
}
var_dump($stylesheet->getCssText());
//printf("Memory: %s\n", memory_get_usage(true));
//printf("Memory peak: %s\n", memory_get_peak_usage(true));
//echo $timer->getOutput();