Some changes to the pullback test, for debugging

[helm.git] / helm / software / lambda-delta / lib / log.ml

diff --git a/helm/software/lambda-delta/lib/log.ml b/helm/software/lambda-delta/lib/log.ml
index 78e57fdfaf9433a115cf262fd5baa2172e803f73..fd99db2d2c24d1b85d721cd990839d947f9a4ca6 100644 (file)
--- a/helm/software/lambda-delta/lib/log.ml
+++ b/helm/software/lambda-delta/lib/log.ml
@@ -19,7 +19,7 @@ type ('a, 'b) item = Term of 'a * 'b
                   | String of string
 
 type ('a, 'b) specs = {
-   pp_term   : F.formatter -> 'a -> 'b -> unit;
+   pp_term   : 'a -> F.formatter -> 'b -> unit;
    pp_context: F.formatter -> 'a -> unit
 }
 
@@ -27,29 +27,37 @@ let level = ref 0
 
 (* Internal functions *******************************************************)
 
-let init =
-   let started = ref false in
-   fun () ->
-      if !started then () else 
-      begin P.printf "\n"; started := true end
+let std = F.std_formatter
+
+let err = F.err_formatter
 
 let pp_items frm st l items =   
-   let pp_item = function
-      | Term (c, t) -> st.pp_context frm c; st.pp_term frm c t
-      | Context c   -> st.pp_context frm c
-      | Warn s      -> F.fprintf frm "@[%s\n@]" s
-      | String s    -> F.fprintf frm "@[%s @]" s
+   let pp_item frm = function
+      | Term (c, t) -> F.fprintf frm "%a@,%a" st.pp_context c (st.pp_term c) t
+      | Context c   -> F.fprintf frm "%a" st.pp_context c
+      | Warn s      -> F.fprintf frm "@,%s" s
+      | String s    -> F.fprintf frm "%s " s
    in
-   if !level >= l then List.iter pp_item items
+   let iter map frm l = List.iter (map frm) l in
+   if !level >= l then F.fprintf frm "%a" (iter pp_item) items
 
 (* Interface functions ******************************************************)
 
-let warn msg = 
-   init (); P.printf " %s\n" msg; flush stdout
+let box l = 
+   if !level >= l then
+   begin F.fprintf std "@,@[<v 2>%s" "  "; F.pp_print_if_newline std () end
+
+let unbox l = if !level >= l then F.fprintf std "@]"
+
+let flush l = if !level >= l then F.fprintf std "@]@."
 
-let log st l items = pp_items F.std_formatter st l items
+let box_err () = F.fprintf err "@[<v>"
 
-let error st items = pp_items F.err_formatter st 0 items
+let flush_err () = F.fprintf err "@]@."
+
+let log st l items = pp_items std st l items
+
+let error st items = pp_items err st 0 items
 
 let items1 s = [Warn s]
 
@@ -58,3 +66,5 @@ let ct_items1 s c t =
 
 let ct_items2 s1 c1 t1 s2 c2 t2 =
    [Warn s1; Term (c1, t1); Warn s2; Term (c2, t2)]
+
+let warn msg = F.fprintf std "@,%s" msg