internal/cvss: add isV30VectorString() and isV31VectorString(), remove extraneous package docs

1 files changed, 7 insertions, 3 deletions

diff --git a/internal/cvss/v30vector.go b/internal/cvss/v30vector.go
index 4154a2f..951cd03 100644
--- a/internal/cvss/v30vector.go
+++ b/internal/cvss/v30vector.go
@@ -1,4 +1,3 @@
-// CVSS vector parser.
 package cvss
 
 import (
@@ -43,9 +42,9 @@ func (v v30Vector) Metrics() []Metric {
   return r
 }
 
-// create CVSS 3.0 vector from string
+// Create CVSS 3.0 vector from string.
 func newV30Vector(s string) (Vector, error) {
-  strs := strings.Split(s, "/")
+  strs := strings.Split(s[len(v31Prefix):], "/")
   r := make([]v3Metric, len(strs))
 
   // walk metric strings
@@ -63,3 +62,8 @@ func newV30Vector(s string) (Vector, error) {
   // build and return vector
   return v30Vector(r), nil
 }
+
+// Is the given string a CVSSv3.0 vector string?
+func isV30VectorString(s string) bool {
+  return (len(s) > len(v30Prefix)) && (s[:len(v30Prefix)] == v30Prefix);
+}