Macro dot_generator::graph

macro_rules! graph {
    (strict $id : expr) => { ... };
    ($id : expr) => { ... };
    (strict di $id : expr) => { ... };
    (di $id : expr) => { ... };
    (strict $id : expr, $stmts : expr) => { ... };
    ($id : expr, $stmts : expr) => { ... };
    (strict di $id : expr, $stmts : expr) => { ... };
    (di $id : expr, $stmts : expr) => { ... };
    (strict $id : expr ; $($stmts : expr), +) => { ... };
    ($id : expr ; $($stmts : expr), +) => { ... };
    (strict di $id : expr ; $($stmts : expr), +) => { ... };
    (di $id : expr ; $($stmts : expr), +) => { ... };
}

represents a graph in dot lang.

• strict word stands for strict in graph
• di word stands for digraph #Example:

    fn graph_test() {
        use dot_generator::*;
        use dot_structures::*;

         assert_eq!(
            graph!(strict di id!("abc")),
            Graph::DiGraph { id: id!("abc"), strict: true, stmts: vec![] }
        );
        assert_eq!(
            graph!(strict di id!("abc");node!("abc")),
            Graph::DiGraph { id: id!("abc"), strict: true, stmts: vec![stmt!(node!("abc"))] }
        );
    }