cfx.simple-build-tool/example/node_modules/pug/test/cases/escaping-class-attribute.html

<foo attr="&lt;%= bar %&gt;"></foo>
<foo class="&lt;%= bar %&gt;"></foo>
<foo attr="<%= bar %>"></foo>
<foo class="<%= bar %>"></foo>
<foo class="<%= bar %> lol rofl"></foo>
<foo class="<%= bar %> lol rofl <%= lmao %>"></foo>