Latte\Compiler::writeAttrsMacro PHP Method

    public function writeAttrsMacro($html)
    {
        //     none-2 none-1 tag-1 tag-2       <el attr-1 attr-2>   /tag-2 /tag-1 [none-2] [none-1] inner-2 inner-1
        // /inner-1 /inner-2 [none-1] [none-2] tag-1 tag-2  </el>   /tag-2 /tag-1 /none-1 /none-2
        $attrs = $this->htmlNode->macroAttrs;
        $left = $right = [];
        foreach ($this->macros as $name => $foo) {
            $attrName = MacroNode::PREFIX_INNER . "-{$name}";
            if (isset($attrs[$attrName])) {
                if ($this->htmlNode->closing) {
                    $left[] = function () use($name) {
                        $this->closeMacro($name, '', NULL, NULL, MacroNode::PREFIX_INNER);
                    };
                } else {
                    array_unshift($right, function () use($name, $attrs, $attrName) {
                        if ($this->openMacro($name, $attrs[$attrName], NULL, NULL, MacroNode::PREFIX_INNER)->empty) {
                            throw new CompileException("Unable to use empty macro as n:{$attrName}.");
                        }
                    });
                }
                unset($attrs[$attrName]);
            }
        }
        $innerMarker = '';
        if ($this->htmlNode->closing) {
            $left[] = function () {
                $this->output .= $this->htmlNode->innerMarker;
            };
        } else {
            array_unshift($right, function () use(&$innerMarker) {
                $this->output .= $innerMarker;
            });
        }
        foreach (array_reverse($this->macros) as $name => $foo) {
            $attrName = MacroNode::PREFIX_TAG . "-{$name}";
            if (isset($attrs[$attrName])) {
                $left[] = function () use($name, $attrs, $attrName) {
                    if ($this->openMacro($name, $attrs[$attrName], NULL, NULL, MacroNode::PREFIX_TAG)->empty) {
                        throw new CompileException("Unable to use empty macro as n:{$attrName}.");
                    }
                };
                array_unshift($right, function () use($name) {
                    $this->closeMacro($name, '', NULL, NULL, MacroNode::PREFIX_TAG);
                });
                unset($attrs[$attrName]);
            }
        }
        foreach ($this->macros as $name => $foo) {
            if (isset($attrs[$name])) {
                if ($this->htmlNode->closing) {
                    $right[] = function () use($name) {
                        $this->closeMacro($name, '', NULL, NULL, MacroNode::PREFIX_NONE);
                    };
                } else {
                    array_unshift($left, function () use($name, $attrs, &$innerMarker) {
                        $node = $this->openMacro($name, $attrs[$name], NULL, NULL, MacroNode::PREFIX_NONE);
                        if ($node->empty) {
                            unset($this->htmlNode->macroAttrs[$name]);
                            // don't call closeMacro
                        } elseif (!$innerMarker) {
                            $this->htmlNode->innerMarker = $innerMarker = '<n:q' . count($this->placeholders) . 'q>';
                            $this->placeholders[$innerMarker] = '';
                        }
                    });
                }
                unset($attrs[$name]);
            }
        }
        if ($attrs) {
            throw new CompileException('Unknown attribute ' . Parser::N_PREFIX . implode(' and ' . Parser::N_PREFIX, array_keys($attrs)));
        }
        if (!$this->htmlNode->closing) {
            $this->htmlNode->attrCode =& $this->placeholders[$uniq = ' n:q' . count($this->placeholders) . 'q'];
            $html = substr_replace($html, $uniq, strrpos($html, '/>') ?: strrpos($html, '>'), 0);
        }
        foreach ($left as $func) {
            $func();
        }
        $this->output .= $html;
        foreach ($right as $func) {
            $func();
        }
        if ($right && substr($this->output, -2) === '?>') {
            $this->output .= "\n";
        }
    }