mixin use(name)
svg.name(role="img")
use(xlink:href="#{svg}#name")
ul
li
+use(pencil)
<svg role="img" class="pencil">
<use xlink:href="images/icons.svg#pencil"></use>
</svg>
<svg role="img" class="name">
<use xlink:href="images/icons.svg#name"></use>
</svg>