diff --git a/.pre-commit-hooks.yaml b/.pre-commit-hooks.yaml
index 86fda08..af658bb 100644
--- a/.pre-commit-hooks.yaml
+++ b/.pre-commit-hooks.yaml
@@ -6,6 +6,7 @@
   types: [text]
   exclude: |
     (?x)(
-        ^.pre-commit-config.yaml
+        ^.vscode/.* |
+        ^project/addons/.*
     )
   stages: [pre-commit, pre-merge-commit, manual]
diff --git a/fc_hooks/__init__.py b/fc_hooks/__init__.py
index 7124271..adc5bec 100644
--- a/fc_hooks/__init__.py
+++ b/fc_hooks/__init__.py
@@ -4,14 +4,40 @@ from pathlib import Path
 from click import argument, command, echo
 
 
-def check_path(path: Path) -> bool:
-    str_path = str(path)
+valid_file_name = set([
+    ".editorconfig",
+    ".gitattributes",
+    ".gitignore",
+    ".gitkeep",
+    ".pre-commit-config.yaml",
+    "__init__.py",
+    "README.md",
+])
 
-    if path.suffix == ".cs":
-        if re.search(r"^[a-zA-Z\\\/\._]*$", str_path) is None:
+pascal_case_extensions = set([
+    ".cs",
+    ".csproj",
+    ".sln",
+])
+
+def check_path(path: Path) -> bool:
+    
+    # folder names must use snake_case.
+    for parent in path.parents:
+        if parent.stem != "" and re.search(r"^[a-z]+(?:_[a-z0-9]+)*$", parent.stem) is None:
+            return False
+
+    # File name exceptions.    
+    if valid_file_name.__contains__(path.name):
+        return True
+
+    if pascal_case_extensions.__contains__(path.suffix):
+        # Check that file name use PascalCase.
+        if re.search(r"[A-Z][a-z0-9]*(?:[A-Z][a-z0-9]*)*(?:[A-Z]?)$", path.stem) is None:
             return False
     else:
-        if re.search(r"^[a-z\\\/\._]*$", str_path) is None:
+        # Check that file name use snake_case.
+        if re.search(r"[a-z]+(?:_[a-z0-9]+)*$", path.stem) is None:
             return False
 
     return True