1 files changed, 12 insertions, 0 deletions
diff --git a/lex.go b/lex.go
index 7450888..f0631da 100644
--- a/lex.go
+++ b/lex.go
@@ -111,6 +111,18 @@ func readToken(br *bufio.Reader, line *int) (token, error) {
 			br.UnreadRune()
 			return token{kind: slash, line: *line}, nil
 		}
+	case '%':
+		next, _, err := br.ReadRune()
+		if err != nil {
+			return token{}, err
+		}
+
+		if next == '=' {
+			return token{kind: percentageEquals, line: *line}, nil
+		} else {
+			br.UnreadRune()
+			return token{kind: percentage, line: *line}, nil
+		}
 	case '(':
 		return token{kind: lparen, line: *line}, nil
 	case ')':