1 files changed, 14 insertions, 0 deletions
diff --git a/util.go b/util.go
new file mode 100644
index 0000000..f7d94e5
--- /dev/null
+++ b/util.go
@@ -0,0 +1,14 @@
+package main
+
+import (
+	"regexp"
+	"strings"
+)
+
+func normalizeSpace(s string) string {
+	return strings.Join(strings.Fields(s), " ")
+}
+
+func stripArxivVersion(id string) string {
+	return regexp.MustCompile(`v\d+$`).ReplaceAllString(id, "")
+}