PhpCss\Ast\Visitor\Explain::visitSelectorSimpleAttribute PHP Метод

    public function visitSelectorSimpleAttribute(Ast\Selector\Simple\Attribute $attribute)
    {
        $operators = array(Ast\Selector\Simple\Attribute::MATCH_EXISTS => 'exists', Ast\Selector\Simple\Attribute::MATCH_PREFIX => 'prefix', Ast\Selector\Simple\Attribute::MATCH_SUFFIX => 'suffix', Ast\Selector\Simple\Attribute::MATCH_SUBSTRING => 'substring', Ast\Selector\Simple\Attribute::MATCH_EQUALS => 'equals', Ast\Selector\Simple\Attribute::MATCH_INCLUDES => 'includes', Ast\Selector\Simple\Attribute::MATCH_DASHMATCH => 'dashmatch');
        $this->start($this->appendElement('attribute', '', array('operator' => $operators[$attribute->match])));
        $this->appendText('[');
        $this->appendElement('name', $attribute->name);
        if ($attribute->match !== Ast\Selector\Simple\Attribute::MATCH_EXISTS) {
            $operatorStrings = array(Ast\Selector\Simple\Attribute::MATCH_PREFIX => '^=', Ast\Selector\Simple\Attribute::MATCH_SUFFIX => '$=', Ast\Selector\Simple\Attribute::MATCH_SUBSTRING => '*=', Ast\Selector\Simple\Attribute::MATCH_EQUALS => '=', Ast\Selector\Simple\Attribute::MATCH_INCLUDES => '~=', Ast\Selector\Simple\Attribute::MATCH_DASHMATCH => '|=');
            $this->appendElement('operator', $operatorStrings[$attribute->match]);
            $this->appendText('"');
            $this->appendElement('value', str_replace(array('\\', '"'), array('\\\\', '\\"'), $attribute->literal));
            $this->appendText('"');
        }
        $this->appendText(']');
        $this->end();
        return TRUE;
    }