First very-very-very-very-alfa release of a MathQL Interpreter implemented

[helm.git] / helm / ocaml / mathql_interpreter / pattern.ml

diff --git a/helm/ocaml/mathql_interpreter/pattern.ml b/helm/ocaml/mathql_interpreter/pattern.ml
new file mode 100644 (file)
index 0000000..2445e1c
--- /dev/null
+++ b/helm/ocaml/mathql_interpreter/pattern.ml
@@ -0,0 +1,14 @@
+
+open Dbconn;;
+open Utility;;
+open Eval;;
+
+let pattern_ex apreamble apattern ext afragid =
+ let c = pgc () in
+  let r1 = c#exec "select att0 from class where att2='Object'" in
+   let res =
+    c#exec ("select att0 from t" ^ (pgresult_to_string r1) ^
+            " where att0 " ^ (pattern_match apreamble apattern ext afragid))
+   in
+    [["retVal"]] @ List.map (fun l -> [l]) (pgresult_to_string_list res)
+;;