cleanup: we require two indices

1 files changed, 8 insertions, 7 deletions

diff --git a/skate/url.go b/skate/url.go
index b104651..f81b1d2 100644
--- a/skate/url.go
+++ b/skate/url.go
@@ -21,17 +21,17 @@ var (
 // http://agingmind.utdallas.edu/facedb/view/neutral-faces.doi:10.3758/BF03206543.
 // http://10.3386/w20634https://doi.org/10.3386/w20634
 func SanitizeURL(s string) string {
-	var (
-		// seems to only be about 15% of total time spent
-		index   = suffixarray.New([]byte(s))
-		indices = index.Lookup([]byte("http"), -1)
-	)
 	if !strings.HasPrefix(s, "http") && !strings.HasPrefix(s, "ftp") {
-		s = sanitizeRaw(s, index)
+		s = sanitizeRaw(s)
 		if s == "" {
 			return s
 		}
 	}
+	var (
+		// seems to only be about 15% of total time spent
+		index   = suffixarray.New([]byte(s))
+		indices = index.Lookup([]byte("http"), -1)
+	)
 	if len(indices) > 1 {
 		s = s[0:indices[1]] // only use the first
 		s = strings.TrimRight(s, ":")
@@ -60,7 +60,8 @@ func SanitizeURL(s string) string {
 	return s
 }
 
-func sanitizeRaw(s string, index *suffixarray.Index) string {
+func sanitizeRaw(s string) string {
+	index := suffixarray.New([]byte(s))
 	if len(s) < 4 {
 		return ""
 	}