如何使用Metalua自动构建文档？

如何使用metalua自动构建代码文档（像doxygen一样）？

我想象中的语法如下：

--> @ARG: a(number) first Number
--> @ARG: b(number) second Number
--> @RET: bool if a was greater than b
--> @RET: number sum of a and b
--> Add a and b while comparing their values
function addcmp(a,b)
  return (a>b),(a+b)
end

创建例如HTML：

<h1>addcmp</h1>
<i>Add a and b while comparing their values</i>
<h2>Arguments:</h2>
<ul>
  <li><i>number</i> <b>a</b>: first Number</li>
  <li><i>number</i> <b>b</b>: second Number</li>
</ul>
<h2>Returns:</h2>
<ul>
  <li><i>bool</i>: if a was greater than b</li>
  <li><i>number</i>: sum of a and b</li>
</ul>

当如下调用时：

metalua -v sample.mlua -o sample.html --make-doc