X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fcomponents%2Fbinaries%2Fxoa%2Fxoa.ml;h=e4e0e7c69f17bcbca0b0b6dd7b19f0d6711c6d46;hb=802e118337ebd0f8b732d4939973aae6415b5bec;hp=92b473d7965cc4682769eb41982caff1d4ba0d93;hpb=4de2411d2cecf21630f6675f58e64f8ec6de9b60;p=helm.git

diff --git a/matita/components/binaries/xoa/xoa.ml b/matita/components/binaries/xoa/xoa.ml
index 92b473d79..e4e0e7c69 100644
--- a/matita/components/binaries/xoa/xoa.ml
+++ b/matita/components/binaries/xoa/xoa.ml
@@ -9,7 +9,9 @@
      \ /   This software is distributed as is, NO WARRANTY.     
       V_______________________________________________________________ *)
 
-module R   = Helm_registry
+module G = Arg
+
+module R = Helm_registry
 
 module L = Lib
 module A = Ast
@@ -21,15 +23,25 @@ let unm_ex s =
 let unm_or s =
    Scanf.sscanf s "%u" A.mk_or 
 
+let unm_and s =
+   Scanf.sscanf s "%u" A.mk_and 
+
 let process conf =
    let preamble = L.get_preamble conf in
-   let ooch = L.open_out preamble (R.get_string "xoa.objects") in
-   let noch = L.open_out preamble (R.get_string "xoa.notations") in
-   List.iter (L.out_include ooch) (R.get_list R.string "xoa.include");   
-   List.iter (E.generate ooch noch) (R.get_list unm_ex "xoa.ex");
-   List.iter (E.generate ooch noch) (R.get_list unm_or "xoa.or");
-   close_out noch; close_out ooch
+   if R.has "xoa.objects" && R.has "xoa.notations" then begin
+      let ooch = L.open_out preamble (R.get_string "xoa.objects") in
+      let noch = L.open_out preamble (R.get_string "xoa.notations") in
+      List.iter (L.out_include ooch) (R.get_list R.string "xoa.include");   
+      L.out_include ooch (R.get_string "xoa.notations" ^ ".ma");      
+      List.iter (E.generate ooch noch) (R.get_list unm_ex "xoa.ex");
+      List.iter (E.generate ooch noch) (R.get_list unm_or "xoa.or");
+      List.iter (E.generate ooch noch) (R.get_list unm_and "xoa.and");
+      close_out noch; close_out ooch
+   end
 
 let _ =
-   let help = "Usage: xoa [ <configuration file> ]*\n" in
-   Arg.parse [] process help
+   let help = "Usage: xoa [ -X | <configuration file> ]*\n" in
+   let help_X  = " Clear configuration" in   
+   Arg.parse [
+      "-X" , G.Unit R.clear, help_X;
+   ] process help