examples of dialogue system grammars

examples/dialogue/DialogueI.gf

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+incomplete concrete DialogueI of Dialogue = open Lang, Prelude in {
+
+  lincat
+    Move   = Phr ;
+    Action = {s : ActType => Str} ;
+    Kind   = CN ;
+    Object = NP ;
+    Oper0  = V ;
+    Oper1  = V2 ;
+    Oper2  = V3 ;
+
+  lin
+    MRequest a = ss (a.s ! ARequest) ;
+    MAnswer  a = ss (a.s ! AAnswer) ;
+
+    MQuery k = 
+      PhrUtt NoPConj (UttQS (UseQCl TPres ASimul PPos 
+        (ExistIP (IDetCN whichPl_IDet NoNum NoOrd k)))) NoVoc ;
+
+    AOper0 op         = mkAction (UseV op) ;
+    AOper1 _   op x   = mkAction (ComplV2 op x) ;
+    AOper2 _ _ op x y = mkAction (ComplV3 op x y) ;
+
+    OAll k = PredetNP all_Predet (DetCN (DetPl (PlQuant IndefArt) NoNum NoOrd) k) ;
+    OIndef k = DetCN (DetSg (SgQuant IndefArt) NoOrd) k ;
+    ODef k = DetCN (DetSg (SgQuant DefArt) NoOrd) k ;
+
+  param
+    ActType = ARequest | AAnswer ; -- and some others
+
+  oper
+
+  -- this should perhaps be language dependent - but at least these
+  -- variants seem to make sense in all languages
+
+    mkAction : VP -> {s : ActType => Str} = \vp -> {
+      s = table {
+        ARequest => variants {
+          aImp vp ;
+          aImpPlease vp ;
+          aWant vp ;
+          aCanYou vp
+          } ;
+        AAnswer => variants {
+          aInf vp
+          }
+        }
+      } ;
+
+   aImp : VP -> Str = \vp ->
+     (PhrUtt NoPConj (UttImpPl PPos (ImpVP vp)) NoVoc).s ;
+
+   aImpPlease : VP -> Str = \vp ->
+     (PhrUtt NoPConj (UttImpPl PPos (ImpVP vp)) please_Voc).s ;
+
+   aWant : VP -> Str = \vp ->
+     (PhrUtt NoPConj (UttS (UseCl TPres ASimul PPos (PredVP (UsePron i_Pron) 
+        (ComplVV want_VV vp)))) NoVoc).s ;
+
+   aCanYou : VP -> Str = \vp ->
+     (PhrUtt NoPConj (UttQS (UseQCl TPres ASimul PPos (QuestCl (PredVP 
+        (UsePron youSg_Pron) (ComplVV can_VV vp))))) NoVoc).s ;
+
+   aInf : VP -> Str = \vp ->
+     (PhrUtt NoPConj (UttVP vp) NoVoc).s ;
+
+}
+