modernized parser in EmbedAPI

examples/tutorial/embedded/MathI.gf

@@ -0,0 +1,23 @@
+incomplete concrete MathI of Math = 
+  open Syntax, Symbol, LexMath in {
+
+  flags startcat = Question ; lexer = textlit ; unlexer = text ;
+
+  lincat 
+    Answer   = Text ;
+    Question = Text ;
+    Object   = NP ;
+
+  lin 
+    Even   = questAdj even_A ;
+    Odd    = questAdj odd_A ;
+    Prime  = questAdj prime_A ;
+    Number n = mkNP (IntPN n) ;
+
+    Yes = mkText yes_Phr ;
+    No  = mkText no_Phr ;
+
+  oper
+    questAdj : A -> NP -> Text = \adj,x -> mkText (mkQS (mkCl x adj)) ;
+
+}