feat: add basic reset for line

scie-grammar/src/grammar/grammar.rs

@@ -165,7 +165,6 @@ impl Grammar {
             current_state = state;
         } else {
             is_first_line = false;
-            // current_state.as_ref().unwrap().reset();
             current_state.reset();
         }
 
@@ -765,7 +764,7 @@ hellomake: $(OBJ)
     #[test]
     fn should_resolve_make_file_error_issues2() {
         let code = "hellomake: $(OBJ)
-    $(CC) -o $@ $^ $(CFLAGS)";
+\t$(CC) -o $@ $^ $(CFLAGS)";
         let grammar = to_grammar_with_code("test-cases/first-mate/fixtures/makefile.json", code);
         debug_output(&grammar, String::from("program.json"));
     }

scie-grammar/src/grammar/stack_element.rs

@@ -111,5 +111,25 @@ impl StackElement {
         return self;
     }
 
-    pub fn reset(&mut self) {}
+    pub fn reset(&mut self) {
+        let mut has_parent = true;
+        if let None = self.parent {
+            has_parent = false;
+            self.enter_pos = -1;
+            self.anchor_pos = -1;
+        }
+
+        while has_parent {
+            self.enter_pos = -1;
+            self.anchor_pos = -1;
+
+            if let None = self.parent {
+                has_parent = false;
+            } else {
+                // todo: check parent not null
+                // self = self.parent.unwrap().borrow_mut();
+                self.parent = None;
+            }
+        }
+    }
 }