tutorial complete with server and js

examples/tutorial/old/semantics/BaseEng.gf

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+--# -path=.:prelude
+
+concrete BaseEng of Base = open Prelude in {
+
+flags lexer=literals ; unlexer=text ;
+
+-- English concrete syntax; greatly simplified - just for demo purposes
+
+lin 
+  PredAP  = infixSS "is" ;
+
+  ComplA2 = cc2 ;
+
+  ModCN   = cc2 ;
+
+  ConjAP c = infixSS c.s ;
+  ConjNP c = infixSS c.s ;
+
+  UsePN a = a ;
+  Every = prefixSS "every" ;
+  Some  = prefixSS "some" ;
+
+  And = ss "and" ;
+  Or  = ss "or" ;
+
+  UseInt n = n ;
+
+  Number = ss "number" ;
+
+  Even   = ss "even" ;
+  Odd    = ss "odd" ;
+  Prime  = ss "prime" ;
+  Equal  = ss ("equal" ++ "to") ;
+  Greater = ss ("greater" ++ "than") ;
+  Smaller = ss ("smaller" ++ "than") ;
+  Divisible = ss ("divisible" ++ "by") ;
+ 
+  Sum     = prefixSS ["the sum of"] ;
+  Product = prefixSS ["the product of"] ;
+  GCD     = prefixSS ["the greatest common divisor of"] ;
+
+  WhatIs = prefixSS ["what is"] ;
+  WhichAre cn ap = ss ("which" ++ cn.s ++ "is" ++ ap.s) ; ---- are
+  QuestS s = s ; ---- inversion
+
+  Yes = ss "yes" ;
+  No = ss "no" ;
+
+  Value np = np ;
+  None = ss "none" ;
+  Many list = list ;
+
+  BasePN = infixSS "and" ;
+  ConsPN = infixSS "," ;
+  
+}