1 files changed, 23 insertions, 1 deletions
diff --git a/subex/subexstate.go b/subex/subexstate.go
index 12ace42..5a38d0b 100644
--- a/subex/subexstate.go
+++ b/subex/subexstate.go
@@ -62,9 +62,31 @@ func (state SubexStoreState) accepting(store Store) (outputs [][]walk.Atom) {
 	return outputs
 }
 
+// A part of an output literal, either an Atom or a slot from which to load
+type OutputContent interface {
+	// Given the current store, return the []Atom produced by the TransducerOutput
+	build(Store) []walk.Atom
+}
+
+// An OutputContent which is just an Atom literal
+type OutputAtomLiteral struct {
+	atom walk.Atom
+}
+func (replacement OutputAtomLiteral) build(store Store) []walk.Atom {
+	return []walk.Atom{replacement.atom}
+}
+
+// An OutputContent which is a slot that is loaded from
+type OutputLoad struct {
+	slot rune
+}
+func (replacement OutputLoad) build(store Store) []walk.Atom {
+	return store[replacement.slot]
+}
+
 // Don't read in anything, just output the series of data and slots specified
 type SubexOutputState struct {
-	content []TransducerOutput
+	content []OutputContent
 	next SubexState
 }
 // Given a store, return what is outputted by an epsilon transition from this state