libreCMC/package/luci/documentation/Templates.md

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.

By adding - (dash) 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.

Builtin functions and markups

Including Lua code

Markup:

<% code %>

Writing variables and function values

Syntax:

<% write (value) %>

Short-Markup:

<%=value%>

Including templates

Syntax:

<% include (templatename) %>

Short-Markup:

<%+templatename%>

Translating

Syntax:

<%= translate("Text to translate") %>

Short-Markup:

<%:Text to translate%>

Commenting

Markup:

<%# 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
media	Path to the active theme directory