Fix nested elements

lib/xml_schema_validator/src/lib.rs

@@ -163,6 +163,17 @@ mod tests {
         }
     }
 
+    #[test]
+    fn test_invalid_nesting() {
+        let schema_text = std::fs::read_to_string("../../action_schema.xsd").unwrap();
+        let validator = XmlSchemaValidator::new(&schema_text).unwrap();
+        validator.clone().append("<reasoning><reasoning>").expect_err("Should fail because of nested tag");
+        validator.clone().append("<reasoning> <reasoning>").expect_err("Should fail because of nested tag, even with whitespace");
+        validator.clone().append("<reasoning>foo<reasoning>").expect_err("Should fail because of nested tag, even with text");
+        validator.clone().append("<reasoning> foo <reasoning>").expect_err("Should fail because of nested tag, even with text and whitespace");
+        validator.clone().append("<reasoning> foo <reasoning/>").expect_err("Should fail because of nested tag, even with self closing tag");
+    }
+    
     #[test]
     fn test_stop_self_closing() {
         let schema_text = std::fs::read_to_string("../../action_schema.xsd").unwrap();

lib/xml_schema_validator/src/token/element_close_start.rs

@@ -23,8 +23,7 @@ impl ElementCloseStart {
                 element: Arc::clone(&self.element),
                 has_slash: true,
             })]
-        } else {
+        } else if self.has_slash && self.element.name.starts_with(c) {
-            if self.element.name.starts_with(c) {
             vec![Token::ElementCloseName(ElementCloseName::new(
                 Arc::clone(&self.element),
                 c.to_string(),
@@ -34,7 +33,6 @@ impl ElementCloseStart {
         }
     }
 }
-}
 
 #[cfg(test)]
 mod element_close_start_tests {