fix: try_fix_yaml failed on snippets with prefix or yml

pr_agent/algo/utils.py

@@ -812,14 +812,19 @@ def try_fix_yaml(response_text: str,
             pass
 
     # second fallback - try to extract only range from first ```yaml to the last ```
-    snippet_pattern = r'```yaml([\s\S]*?)```(?=\s*$|")'
+    snippet_pattern = r'```(yaml|yml)?([\s\S]*?)```(?=\s*$|")'
     snippet = re.search(snippet_pattern, '\n'.join(response_text_lines_copy))
     if not snippet:
         snippet = re.search(snippet_pattern, response_text_original) # before we removed the "```"
     if snippet:
         snippet_text = snippet.group()
+        prefix = (
+            '```yaml'
+            if snippet_text.startswith('```yaml')
+            else ('```yml' if snippet_text.startswith('```yml') else '```')
+        )
         try:
-            data = yaml.safe_load(snippet_text.removeprefix('```yaml').rstrip('`'))
+            data = yaml.safe_load(snippet_text.removeprefix(prefix).rstrip('`'))
             get_logger().info(f"Successfully parsed AI prediction after extracting yaml snippet")
             return data
         except:

tests/unittest/test_try_fix_yaml.py

@@ -21,16 +21,34 @@ def test_add_relevant_line(self):
 
     # The function extracts YAML snippet
     def test_extract_snippet(self):
-        review_text = '''\
+        review_text1 = '''\
 Here is the answer in YAML format:
 
 ```yaml
 name: John Smith
 age: 35
 ```
+'''
+        review_text2 = '''\
+Here is the answer in YAML format:
+
+```yml
+name: John Smith
+age: 35
+```
+'''
+        review_text3 = '''\
+Here is the answer in YAML format:
+
+```
+name: John Smith
+age: 35
+```
 '''
         expected_output = {'name': 'John Smith', 'age': 35}
-        assert try_fix_yaml(review_text) == expected_output
+        assert try_fix_yaml(review_text1) == expected_output
+        assert try_fix_yaml(review_text2) == expected_output
+        assert try_fix_yaml(review_text3) == expected_output
 
 
     # The YAML string is empty.