initial (hacky af)

examples/bf.py

@@ -0,0 +1,18 @@
+import gll
+
+def loop(string):
+    parser = gll.seq(gll.skip(gll.string("[")),
+                     gll.many(op),
+                     gll.skip(gll.string("]")),
+                     tag="loop")
+    return parser(string)
+
+op = (gll.string("+", tag="add") |
+      gll.string("-", tag="sub") |
+      gll.string(".", tag="out") |
+      gll.string(",", tag="in")  |
+      gll.string(">", tag="fwd") |
+      gll.string("<", tag="bck") |
+      loop)
+
+parser = gll.all(gll.many(op), tag="program")