feat: add ast_checker mappings for Python3 and C

ast_checker/mappings/__init__.py

@@ -0,0 +1,37 @@
+from tree_sitter import Language
+
+from .c import C_MAPPING
+from .python import PYTHON_MAPPING
+
+_MAPPINGS = {
+    "Python3": PYTHON_MAPPING,
+    "C": C_MAPPING,
+}
+
+_LANGUAGES: dict[str, Language] = {}
+
+
+def _init_languages():
+    try:
+        import tree_sitter_python as tspython
+
+        _LANGUAGES["Python3"] = Language(tspython.language())
+    except ImportError:
+        pass
+    try:
+        import tree_sitter_c as tsc
+
+        _LANGUAGES["C"] = Language(tsc.language())
+    except ImportError:
+        pass
+
+
+_init_languages()
+
+
+def get_mapping(language: str) -> dict:
+    return _MAPPINGS.get(language, {})
+
+
+def get_language(language: str) -> Language | None:
+    return _LANGUAGES.get(language)