From 2826061251ca05a777fec36fb5ad08b6e87e6ae7 Mon Sep 17 00:00:00 2001
From: Inari Listenmaa <inari.listenmaa@gmail.com>
Date: Fri, 2 Oct 2020 17:56:24 +0200
Subject: [PATCH] (Tutorial) Update the pre syntax

---
 doc/tutorial/gf-tutorial.t2t | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/doc/tutorial/gf-tutorial.t2t b/doc/tutorial/gf-tutorial.t2t
index 7467e107e..e027f0030 100644
--- a/doc/tutorial/gf-tutorial.t2t
+++ b/doc/tutorial/gf-tutorial.t2t
@@ -2757,7 +2757,11 @@ Thus the labels ``p1, p2,...`` are hard-coded.
 English indefinite article:
 ```
   oper artIndef : Str =
-    pre {"a" ; "an" / strs {"a" ; "e" ; "i" ; "o"}} ;
+     pre {
+       ("a" | "e" | "i" | "o") => "an" ;
+       _ => "a"
+     } ;
+
 ```
 Thus
 ```