Beans_Lessc::tryImport PHP Метод

    protected function tryImport($importPath, $parentBlock, $out)
    {
        if ($importPath[0] == "function" && $importPath[1] == "url") {
            $importPath = $this->flattenList($importPath[2]);
        }
        $str = $this->coerceString($importPath);
        if ($str === null) {
            return false;
        }
        $url = $this->compileValue($this->lib_unquote($str));
        // don't import if it ends in css
        if (substr_compare($url, '.css', -4, 4) === 0) {
            return false;
        }
        $realPath = $this->findImport($url);
        if ($realPath === null) {
            return false;
        }
        if ($this->importDisabled) {
            return array(false, "/* import disabled */");
        }
        if (isset($this->allParsedFiles[realpath($realPath)])) {
            return array(false, null);
        }
        $this->addParsedFile($realPath);
        $parser = $this->makeParser($realPath);
        $root = $parser->parse($GLOBALS['wp_filesystem']->get_contents($realPath));
        // set the parents of all the block props
        foreach ($root->props as $prop) {
            if ($prop[0] == "block") {
                $prop[1]->parent = $parentBlock;
            }
        }
        // copy mixins into scope, set their parents
        // bring blocks from import into current block
        // TODO: need to mark the source parser	these came from this file
        foreach ($root->children as $childName => $child) {
            if (isset($parentBlock->children[$childName])) {
                $parentBlock->children[$childName] = array_merge($parentBlock->children[$childName], $child);
            } else {
                $parentBlock->children[$childName] = $child;
            }
        }
        $pi = pathinfo($realPath);
        $dir = $pi["dirname"];
        list($top, $bottom) = $this->sortProps($root->props, true);
        $this->compileImportedProps($top, $parentBlock, $out, $parser, $dir);
        return array(true, $bottom, $parser, $dir);
    }