Experimental support for Russell (coercions moving inside lambda & pattern

[helm.git] / helm / software / components / extlib / graphvizPp.ml

diff --git a/helm/software/components/extlib/graphvizPp.ml b/helm/software/components/extlib/graphvizPp.ml
index 4804699e0a7ef048dae9851641411e7e768be6e5..46432883744ad7c68406be2d040dbe40134f25ce 100644 (file)
--- a/helm/software/components/extlib/graphvizPp.ml
+++ b/helm/software/components/extlib/graphvizPp.ml
@@ -30,6 +30,7 @@ type attribute = string * string  (* <key, value> pair *)
 module type GraphvizFormatter =
   sig
     val header:
+      ?graph_type:string -> 
       ?name:string -> ?graph_attrs:(attribute list) ->
       ?node_attrs:(attribute list) -> ?edge_attrs:(attribute list) ->
       Format.formatter ->
@@ -48,15 +49,21 @@ module Dot =
   struct
     let attribute fmt (k, v) = fprintf fmt "@[<hv2>%s=@,\"%s\",@]" k v
     let attributes attrs fmt = List.iter (attribute fmt) attrs
+    let quote_string quote s = if quote then "\"" ^s ^ "\"" else s
 
     let node name ~quote ?(attrs = []) fmt =
-      let quote_string = if quote then "\"" else "" in
-      fprintf fmt "@[<hov2>%s%s%s@ [" quote_string name quote_string;
+      fprintf fmt "@[<hov2>%s@ [" (quote_string quote name);
       attributes attrs fmt;
       fprintf fmt "];@]@,"
 
-    let header ?(name = "g") ?(graph_attrs = []) ?node_attrs ?edge_attrs fmt =
-      fprintf fmt "@[<hv2>strict digraph %s {@," name;
+    let edge ~quote name1 name2 ?(attrs = []) fmt =
+      fprintf fmt "@[<hov2>%s ->@ %s@ [" 
+         (quote_string quote name1) (quote_string quote name2);
+      attributes attrs fmt;
+      fprintf fmt "];@]@,"
+
+    let header ?(graph_type = "digraph") ?(name = "g") ?(graph_attrs = []) ?node_attrs ?edge_attrs fmt =
+      fprintf fmt "@[<hv2>%s %s {@," graph_type name;
       List.iter (fun (k, v) -> fprintf fmt "@[<hv2>%s=@,%s;@]@," k v)
         graph_attrs;
       (match node_attrs with
@@ -67,10 +74,7 @@ module Dot =
       | None -> ())
 
     let node = node ~quote:true
-    let edge name1 name2 ?(attrs = []) fmt =
-      fprintf fmt "@[<hov2>\"%s\" ->@ \"%s\"@ [" name1 name2;
-      attributes attrs fmt;
-      fprintf fmt "];@]@,"
+    let edge = edge ~quote:true
     let raw s fmt = pp_print_string fmt s
     let trailer fmt = fprintf fmt "@,}@]%!"
   end