1 files changed, 21 insertions, 0 deletions
diff --git a/go/src/lib/statusline/prefix.go b/go/src/lib/statusline/prefix.go
new file mode 100644
index 0000000..9373410
--- /dev/null
+++ b/go/src/lib/statusline/prefix.go
@@ -0,0 +1,21 @@
+package statusline
+
+type prefix struct {
+	inner StatusLine
+	prefix string
+}
+
+func Prefix(sl StatusLine, pfix string) StatusLine {
+	return &prefix{
+		inner: sl,
+		prefix: pfix,
+	}
+}
+
+func (sl *prefix) Put(line string) {
+	sl.inner.Put(sl.prefix+line)
+}
+
+func (sl *prefix) End(keep bool) {
+	sl.inner.End(keep)
+}