1 files changed, 21 insertions, 0 deletions
diff --git a/testdata/integration/user_defined_syntax/token_escaping.in.osml b/testdata/integration/user_defined_syntax/token_escaping.in.osml
new file mode 100644
index 0000000..66ad1eb
--- /dev/null
+++ b/testdata/integration/user_defined_syntax/token_escaping.in.osml
@@ -0,0 +1,21 @@
+%{
+	This test checks whether tokens starting with the default field indicator at
+	the beginning works by escaping the "!" with a backslash.
+}%
+\document
+\ontology#test{
+	\struct#a[root=true]
+		\field
+			\childRef[ref=b]
+			\childRef[ref=c]
+	\struct#b
+		\syntax
+			\short{\!=}
+	\struct#c
+		\syntax
+			\short{=}
+}
+
+\begin{a}
+= !=
+\end{a}