moved tutorial examples to GF/examples

examples/tutorial/syntax/MorphoEng.gf

@@ -0,0 +1,69 @@
+--# -path=.:prelude
+
+resource MorphoEng = open Prelude in {
+
+  -- the lexicon construction API
+
+    oper
+      mkN : overload {
+        mkN : (bus : Str) -> Noun ;
+        mkN : (man,men : Str) -> Noun ;
+      } ;
+
+      mkA : (warm : Str) -> Adjective ;
+
+      mkV : overload {
+        mkV : (kiss : Str) -> Verb ;
+        mkV : (do,does : Str) -> Verb ;
+      } ;
+
+      mkV2 : overload {
+        mkV2 : (love : Verb) -> Verb2 ;
+        mkV2 : (talk : Verb) -> (about : Str) -> Verb2 ;
+      } ;
+
+  -- grammar-internal definitions
+
+    param
+      Number = Sg | Pl ;
+
+    oper
+      Noun, Verb : Type = {s : Number => Str} ;
+      Adjective : Type = {s : Str} ;
+      Verb2 : Type = Verb ** {c : Str} ;
+
+      mkN = overload {
+        mkN : (bus : Str) -> Noun = \s -> mkNoun s (add_s s) ;
+        mkN : (man,men : Str) -> Noun = mkNoun ;
+      } ;
+
+      mkA : (warm : Str) -> Adjective = ss ;
+
+      mkV = overload {
+        mkV : (kiss : Str) -> Verb = \s -> mkVerb s (add_s s) ;
+        mkV : (do,does : Str) -> Verb = mkVerb ;
+      } ;
+
+      mkV2 = overload {
+        mkV2 : (love : Verb) -> Verb2 = \love -> love ** {c = []} ;
+        mkV2 : (talk : Verb) -> (about : Str) -> Verb2 = 
+          \talk,about -> talk ** {c = about} ;
+      } ;
+
+      add_s : Str -> Str = \w -> case w of {
+        _ + "oo"                           => w + "s" ;   -- bamboo
+        _ + ("s" | "z" | "x" | "sh" | "o") => w + "es" ;  -- bus, hero
+        _ + ("a" | "o" | "u" | "e") + "y"  => w + "s" ;   -- boy
+        x + "y"                            => x + "ies" ; -- fly
+        _                                  => w + "s"     -- car
+      } ;
+
+      mkNoun : Str -> Str -> Noun = \x,y -> {
+        s = table {
+          Sg => x ;
+          Pl => y
+          }
+        } ;
+
+      mkVerb : Str -> Str -> Verb = \x,y -> mkNoun y x ;
+  }