Constructor function for Variables data type.

>>> mkVariables [("key1", "value1")]
Variables (fromList [("key1","value1")])

Dynamic variables that are common for all parsed files.

• _current_year - current year

Parses variables from raw input in key=value format.

>>> parseVariables ["key1=value1"]
Variables (fromList [("key1","value1")])

Compiles variable values that are itself mini-templates, where their variables will be substituted by other variable values (if possible). Note that recursive variable reference and/or cyclic references are not supported.

>>> compileVariables $ mkVariables [("name", "John"), ("msg", "Hello, {{ name }}")]
Variables (fromList [("msg","Hello, John"),("name","John")])