XML scheme definition draft

gistfile1.rs

struct Attribute {
    name: &str
    required: bool
}

let attr: Attr = Default::default();
let nested: Nested = Default::default();
let baseColor = OOXMLObjectBuilder::base()
    .def(Attr {name: "auto", ..attr}
    .def(Attr {name: "indexed", ..attr}
    .def(Attr {name: "rgb", ..attr}
    .def(Attr {name: "theme", ..attr}
    .def(Attr {name: "tint", ..attr};

OOXMLObjectBuilder::new("fgColor")
    .derive(baseColor);
    
OOXMLObjectBuilder::new("bgColor")
    .derive(baseColor);

OOXMLObjectBuilder::new("patternFill")
    .def(Attr {name: "patternType", required: true, ..attr}),
    .seq(1..1, &["fgColoe", "bgColor"]);

OOXMLObjectBuilder::new("gradientFill")
    .def(Attr {name: "type", ..attr})
    .def(Attr {name: "degree", ..attr})
    .def(Attr {name: "left", ..attr})
    .def(Attr {name: "right", ..attr})
    .def(Attr {name: "top", ..attr})
    .def(Attr {name: "bottom", ..attr});

OOXMLObjectBuilder::new("fill")
    .def(Attr {name: "attrA", ..attr})
    .def(Attr {name: "attrB", required: true, ..attr})
    .choice(1..1, &["patternFill", "gradientFill"]);