--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/samples/opertest.ysl2	Mon Jul 11 23:15:28 2016 +0200
@@ -0,0 +1,5 @@
+include yslt.yml2
+
+define operator "π(\w+)" as value "%1", value "%1-19";
+
+tstylesheet template "/" | hello, world π42