Launch repl on run

examples/repl.modal

@@ -1,8 +0,0 @@
-?(?-) (This is a fully functional Modal REPL.)
-
-<> quit EOF
-<> wait?~ (?~ wait!)
-<> (?: print) ?:
-<> (EOF wait!) (Bye.\n print)
-
-(Say something, or type "quit":\n) print wait!

makefile

@@ -8,7 +8,7 @@ all: dest
 dest:
 	@ mkdir -p bin
 run: all bin/modal
-	@ bin/modal -q examples/hello.modal
+	@ bin/modal src/repl.modal
 debug: all bin/modal-debug
 	@ bin/modal-debug examples/rules.modal
 test: all bin/modal-debug bin/modal

src/repl.modal

@@ -0,0 +1,17 @@
+?(?: ?:) (
+\n
+\t Hello. Welcome to Modal\n
+\t Start rewriting, or type "quit"\n
+\n
+\t <> Defines a rule\n
+\t >< Undefines a rule\n
+\t ?x Assigns a register\n
+\n
+\t Have fun!\n
+\n
+)
+
+<> (quit listen!) (?(?: ?:) (\n\tSee you soon.\n\n))
+<> listen?~ (?~ listen!)
+
+listen!