X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Focaml%2Fcic_transformations%2FcicAst.ml;h=ca48567863aa8d9c88ebf6eba9aa986db55c1fae;hb=aca103d3c3d740efcc0bcc2932922cff77facb49;hp=9abd07a75836d6c38ff53e65672fce017d1e5544;hpb=714376413f68dad720d6253b1f36209d8d096443;p=helm.git

diff --git a/helm/ocaml/cic_transformations/cicAst.ml b/helm/ocaml/cic_transformations/cicAst.ml
index 9abd07a75..ca4856786 100644
--- a/helm/ocaml/cic_transformations/cicAst.ml
+++ b/helm/ocaml/cic_transformations/cicAst.ml
@@ -28,11 +28,13 @@ open Printf
 type location = Lexing.position * Lexing.position
 
 let pp_location (loc_begin, loc_end) =
-  sprintf "(%d,%d)-(%d,%d)"
-    loc_begin.Lexing.pos_lnum
-    (loc_begin.Lexing.pos_cnum - loc_begin.Lexing.pos_bol)
-    loc_end.Lexing.pos_lnum
-    (loc_end.Lexing.pos_cnum - loc_end.Lexing.pos_bol)
+  let c_begin = loc_begin.Lexing.pos_cnum - loc_begin.Lexing.pos_bol in
+  let c_end = loc_end.Lexing.pos_cnum - loc_end.Lexing.pos_bol in
+  if loc_begin.Lexing.pos_lnum = -1 || loc_end.Lexing.pos_lnum = -1 then
+      sprintf "%d-%d" c_begin c_end
+    else
+      sprintf "(%d,%d)-(%d,%d)" loc_begin.Lexing.pos_lnum c_begin
+        loc_end.Lexing.pos_lnum c_end
 
 let floc_of_loc (loc_begin, loc_end) =
   let floc_begin =