1 files changed, 8 insertions, 0 deletions
diff --git a/pkg/lang/scanner/errors.go b/pkg/lang/scanner/errors.go
index 6a6f9d9..a982b60 100644
--- a/pkg/lang/scanner/errors.go
+++ b/pkg/lang/scanner/errors.go
@@ -14,3 +14,11 @@ type ErrUnknownChar struct {
 func (e ErrUnknownChar) Error() string {
 	return "unknown character: " + string(e.Char)
 }
+
+type ErrUnknownEscapeSequence struct {
+	Char rune
+}
+
+func (e ErrUnknownEscapeSequence) Error() string {
+	return "unknown escape sequence: \\" + string(e.Char)
+}