fix: remove regex

cve_bin_tool/util.py

@@ -337,7 +337,7 @@ def validate_location(location: str) -> bool:
 
 def decode_purl(purl: str) -> ProductInfo | None:
     """
-    Validate and decode a Package URL (purl) in the format: pkg:type/namespace/product@version.
+    Decode a Package URL (purl) in the format: pkg:type/namespace/product@version.
 
     Args:
     - purl (str): Package URL (purl) string.
@@ -346,30 +346,26 @@ def decode_purl(purl: str) -> ProductInfo | None:
     - ProductInfo | None: An instance of ProductInfo containing the vendor, product,
       version, location, and purl, or None if the purl is invalid.
     """
-    # Define the regex pattern for the expected format
-    pattern = re.compile(r"^pkg:[^/]+/([^/]+)/([^@]+)@(.+)$")
     location = "location/to/product"
 
     try:
         purl_obj = PackageURL.from_string(purl)
-        match = pattern.match(purl)
-        if match:
-            vendor = purl_obj.namespace
-            product = purl_obj.name
-            version = purl_obj.version
-            if vendor and product and version:
-                product_info = ProductInfo(
-                    vendor=vendor,
-                    product=product,
-                    version=version,
-                    location=location,
-                    purl=purl,
-                )
-                return product_info
-            else:
-                raise ValueError("Invalid purl components")
+        vendor = purl_obj.namespace
+        product = purl_obj.name
+        version = purl_obj.version
+        if vendor and product and version:
+            product_info = ProductInfo(
+                vendor=vendor,
+                product=product,
+                version=version,
+                location=location,
+                purl=purl,
+            )
+            return product_info
         else:
-            raise ValueError("Invalid purl format")
+            raise ValueError(
+                f"Invalid purl: expected format pkg:type/namespace/product@version, got {purl}"
+            )
 
     except Exception as e:
         LOGGER.error(f"Error decoding purl: {e}")