SDLang !!!! : https://sdlang.org/

Full example : https://github.com/Abscissa/SDLang-D/wiki/Language-Guide#exa...

Examples:

Creating a Tree

    plants {
        trees {
            deciduous {
                elm
                oak
            }
        }
    }

Creating a Matrix

    myMatrix {
       4  2  5
       2  8  2
       4  2  1
    }

A Tree of Nodes with Values and Attributes

    folder "myFiles" color="yellow" protection=on {
        folder "my images" {
            file "myHouse.jpg" color=true date=2005/11/05
            file "myCar.jpg" color=false date=2002/01/05
        }
        folder "my documents" {
            document "resume.pdf"
        }
    }

Date and Date/Time Literals (and comments!)

    # create a tag called "date" with a date value of Dec 5, 2005
    date 2005/12/05

    # a date time literal without a timezone
    here 2005/12/05 14:12:23.345

    # a date time literal with a timezone
    in_japan 2005/12/05 14:12:23.345-JST