renderSnakeHTML生成库

RenderSnake 是一个轻量级的Java类库用来通过Java方法生产html页面，包含4个核心类库：

• HtmlCanvas , a class that has methods for all HTML 4.01 and HTML5 tags for opening and closing it
• HtmlAttributes, a class that has methods for all existing HTML attributes for setting an attribute value
• Renderable, a interface that is used to create component classes. Each component must implement the method renderOn(HtmlCanvas)
• PageContext, a Map-like object to store any information that is used for rendering a Page.

示例代码：

canvas.html()
        .body()
          .h1().write("RenderSnake")._h1()
        ._body()
      ._html()