An old experiment which was converted in a fully functional HTML preprocessor. This mini language (HTMLEX) is an extension of HTML which gives you the power to use special tags with some kind of logic (<!if>, <!function>, <!include>, <!macro>, etc.).

The aim of this project is to generate static HTML web sites using an improved HTML extension where you can include other files, define functions, macros, etc. Here an example:

template.htex file:

<!function mainlayout $content>
      <div class="content"><!include $content></div>

index.htex file:

<!include template.htex>
<!mainlayout index-content.htex>

This is an open source project located in github: