1 files changed, 20 insertions, 0 deletions
diff --git a/plugin/auto/regexp.go b/plugin/auto/regexp.go
new file mode 100644
index 000000000..fa424ec7e
--- /dev/null
+++ b/plugin/auto/regexp.go
@@ -0,0 +1,20 @@
+package auto
+
+// rewriteToExpand rewrites our template string to one that we can give to regexp.ExpandString. This basically
+// involves prefixing any '{' with a '$'.
+func rewriteToExpand(s string) string {
+	// Pretty dumb at the moment, every { will get a $ prefixed.
+	// Also wasteful as we build the string with +=. This is OKish
+	// as we do this during config parsing.
+
+	copy := ""
+
+	for _, c := range s {
+		if c == '{' {
+			copy += "$"
+		}
+		copy += string(c)
+	}
+
+	return copy
+}