--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/2-Io/day2-operators.io	Tue Sep 12 20:58:51 2017 +0100
@@ -0,0 +1,21 @@
+# Operators are syntactic sugar and can be listed from a table:
+OperatorTable println
+
+# Creating an operator involves defining it with a precedence
+# (index based on the output from the previous table)
+OperatorTable addOperator("xor", 11)
+
+# And then implementing it on appropriate prototypes
+# Note that Io is open-edit, like Ruby, so we can screw with core stuff
+# like Booleans and extend them
+true xor := method(bool, if(bool, false, true))
+false xor := method(bool, if(bool, true, false))
+
+# For some reason I have to work out, the prints don't work here
+# They print the second value. But running in REPL works and return correct
+# value (before printing wrong one)
+(true xor true) println
+(true xor false) println
+(false xor true) println
+(false xor false) println
+