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Diffstat (limited to 'old-examples/query/DatabaseEng.gf')
| -rw-r--r-- | old-examples/query/DatabaseEng.gf | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/old-examples/query/DatabaseEng.gf b/old-examples/query/DatabaseEng.gf new file mode 100644 index 000000000..6af490678 --- /dev/null +++ b/old-examples/query/DatabaseEng.gf @@ -0,0 +1,52 @@ +--# -path=.:prelude + +concrete DatabaseEng of Database = open Prelude in { + +-- english query language + +flags lexer=literals ; unlexer=text ; + +-- concrete syntax; greatly simplified - just for test purposes + +lin + QueryS s = s ; + QueryQ q = q ; + + PredA1 np a = prefixSS "is" (cc2 np a) ; + + WhichA1 n a = ss ("which" ++ n.s ++ "are" ++ a.s) ; + WhichA2 n q a = ss ("which" ++ n.s ++ "are" ++ q.s ++ a.s) ; + + ComplA2 = cc2 ; + + Every A = ss ("every" ++ A.s) ; + Some A = ss ("some" ++ A.s) ; + UseInt n = n ; + + Number = ss "numbers" ; + + 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") ; + +-- replies + +lin + Yes = ss "yes" ; + No = ss "no" ; + + None = ss "none" ; + List xs = xs ; + One n = n ; + Cons = cc2 ; + +-- general moves + +lin + Quit = ss "quit" ; + Bye = ss "bye" ; +} |
