Reminds me of the “Shakespearean Templates“ [1] from the Yesod web framework [2]. [1]: https://www.oreilly.com/library/view/developing-web-applications/9781449

Reminds me of the “Shakespearean Templates“ [1] from the Yesod web framework [2]. [1]: https://www.oreilly.com/library/view/developing-web-applications/9781449336868/ch04.html https://www.oreilly.com/library/view/developing-web-applicat... [2]: https://www.yesodweb.com/ https://www.yesodweb.com/ Copied below to save you a click: Hamlet (HTML) $doctype 5 <html> <head> <title>#{pageTitle} - My Site <link rel=stylesheet href=@{Stylesheet}> <body> <h1 .page-title>#{pageTitle} <p>Here is a list of your friends: $if null friends <p>Sorry, I lied, you don't have any friends. $else <ul> $forall Friend name age <- friends <li>#{name} (#{age} years old) <footer>^{copyright} Cassius (CSS) #myid color: #{red} font-size: #{bodyFontSize} foo bar baz background-image: url(@{MyBackgroundR}) Lucius (CSS) section.blog { padding: 1em; border: 1px solid #000; h1 { color: #{headingColor}; } } Julius (JavaScript) $(function(){ $("section.#{sectionClass}").hide(); $("#mybutton").click(function(){document.location = "@{SomeRouteR}";}); ^{addBling} }); For those curious, the above is implemented in the metaprogramming framework of Template Haskell.