1 files changed, 20 insertions, 0 deletions
diff --git a/internal/cvss/badmetric.go b/internal/cvss/badmetric.go
new file mode 100644
index 0000000..e7c3f4c
--- /dev/null
+++ b/internal/cvss/badmetric.go
@@ -0,0 +1,20 @@
+// CVSS vector parser.
+package cvss
+
+import "fmt"
+
+// Bad metric error.
+type badMetric struct {
+  version Version // CVSS version
+  val string // metric value
+}
+
+// Create new bad key error.
+func newBadMetric(version Version, val string) error {
+  return &badMetric { version, val }
+}
+
+// Return printable error string.
+func (e badMetric) Error() string {
+  return fmt.Sprintf("invalid CVSS %s metric: %s", e.version, e.val)
+}