Add Rust target

spec/test_starting_rules.rs

@@ -0,0 +1,18 @@
+use testparser::*;
+
+fn main() {
+    let mut c = p_context_new(b"bbbb");
+    assert_eq!(P_SUCCESS, p_parse(&mut c));
+    assert_eq!(8, p_result(&c));
+    p_context_delete(c);
+
+    let mut c = p_context_new(b"bbbb");
+    assert_eq!(P_SUCCESS, p_parse_Bs(&mut c));
+    assert_eq!(8, p_result_Bs(&c));
+    p_context_delete(c);
+
+    let mut c = p_context_new(b"c");
+    assert_eq!(P_SUCCESS, p_parse_R(&mut c));
+    assert_eq!(3, p_result_R(&c));
+    p_context_delete(c);
+}