string i(string mx)() { 

    // this is just a very basic simple example implementation

    import std.algorithm;

    import std.array;

    string get() { return mx;}

    return `

        (){

            import std.algorithm;

            import std.meta;

            import std.array;

            import std.conv;

            import std.functional;

            enum SPL = aliasSeqOf!("`~mx~`".splitter(" ").array);

            template REPL(string e) {

                import std.algorithm;

                static if(e.startsWith("$")) {                      

                    import std.conv;

                    mixin("enum REPL = ()=>"~e[1..$]~".to!string;");

                }

                else {

                    string fn(){ return e;}

                    enum REPL = &fn;

                }

            }

            enum SS = staticMap!(REPL, SPL);

            return "\""~[staticMap!(REPL, SPL)].map!(fn=>fn()).join(" ")~"\"";

        }()

    `;

}

​

int main() {

    import std.stdio;    

    float var = 42;

    writeln(mixin(i!"stop $var days of bikeshedding"));

    // with lowering __"" to mixin(__!""); we could simply write:

    // writeln(i"stop $var days of bikeshedding");

    // but we could also implement a yadip template so we can write 

    // yadip"this will return adams template as defined in YADIP";

​

    return 0;

}