Add Rust target

spec/test_tree_token_positions.rs

@@ -0,0 +1,27 @@
+use testparser::*;
+
+fn main() {
+    let input = b"abbccc";
+    let mut context = p_context_new(input);
+    assert_eq!(P_SUCCESS, p_parse(&mut context));
+    {
+        let start = p_result(&context);
+        let t1 = start.pT1();
+        let t2 = start.pT2();
+        let t3 = start.pT3();
+        assert_eq!(1, t1.position().col);
+        assert_eq!(1, t1.end_position().col);
+        assert_eq!(2, t2.position().col);
+        assert_eq!(3, t2.end_position().col);
+        assert_eq!(4, t3.position().col);
+        assert_eq!(6, t3.end_position().col);
+        /* Token node position within T1. */
+        assert_eq!(1, t1.pToken().position().col);
+        /* Overall start node spans the whole input. */
+        assert_eq!(1, start.position().col);
+        assert_eq!(6, start.end_position().col);
+        assert_eq!(3, start.n_fields());
+    }
+    p_context_delete(context);
+    println!("ok");
+}