Add Rust target

spec/test_parse_inner_nested_tree.rs

@@ -0,0 +1,36 @@
+use testparser::*;
+
+fn main() {
+    let mut c = p_context_new(b"(3 + 4) + (5 + 6)");
+    assert_eq!(P_SUCCESS, p_parse(&mut c));
+    {
+        let tree = p_result(&c);
+        assert!(tree.valid());
+
+        /* Start -> Expr, where the top Expr is "Expr plus num". */
+        let top = tree.pExpr();
+        assert!(top.valid());
+        assert!(top.pExpr().valid());
+        assert!(top.pToken2().valid());
+        assert!(top.pToken3().valid());
+
+        /* The '+' joining the two groups is at column 9. */
+        assert_eq!(1, top.pToken2().position().row);
+        assert_eq!(9, top.pToken2().position().col);
+
+        /* Right operand: synthesized num for "(5 + 6)", columns 11..17. */
+        assert_eq!(11, top.pToken3().position().col);
+        assert_eq!(17, top.pToken3().end_position().col);
+
+        /* Left operand: synthesized num for "(3 + 4)", columns 1..7. */
+        let left = top.pExpr();
+        assert!(left.pToken1().valid());
+        assert_eq!(1, left.pToken1().position().col);
+        assert_eq!(7, left.pToken1().end_position().col);
+
+        /* The whole tree spans columns 1..17. */
+        assert_eq!(1, tree.position().col);
+        assert_eq!(17, tree.end_position().col);
+    }
+    p_context_delete(c);
+}