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LuCI has a simple regex based template processor which parses HTML-files to Lua functions and allows to store precompiled template files. The simplest form of a template is just an ordinary HTML-file. It will be printed out to the user as is.

In LuCI every template is an object with an own scope. It can therefore be instanciated and each instance can has a different scope. As every template processor. LuCI supports several special markups. Those are enclosed in <% %> Tags.

Builtin functions and markups (Including Lua code)

Syntax:  <% code %>

Strip White Space:  <%- code -%>
Adding a - right after the opening <% every whitespace before the markup will be stripped.
Adding a - right before the closing %> will equivalently strip every whitespace behind the markup.

Writing variables and function values

Syntax:  <% write (value) %>
Short-Markup:  <%=value%>

Including templates

Syntax:  <% include (templatename) %>
Short-Markup:  <%+templatename%>


Syntax:  <% translate (translation_key, default_translation) %>
Short-Markup:  <%:translation_key default_translation%>


Syntax:  <%# comment %>

Builtin constants

 Name Value
REQUEST_URI The current URL (without server part)
controller Path to the Luci main dispatcher 
resource Path to the resource directory 
mediaPath to the active theme directory