X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=sidebyside;f=helm%2Fsoftware%2Fcomponents%2Fcontent_pres%2FcicNotationLexer.ml;h=00696cc00d2cec8b36e4a3a4a1c8d45000331a52;hb=99f153e43f18bc682339bed41c8230af2ac6fd2f;hp=911ddc57eeb4580a2eec8936b5468c61f8e38fb7;hpb=130dc73bc5d47891f184a34d664222bde0ec8164;p=helm.git

diff --git a/helm/software/components/content_pres/cicNotationLexer.ml b/helm/software/components/content_pres/cicNotationLexer.ml
index 911ddc57e..00696cc00 100644
--- a/helm/software/components/content_pres/cicNotationLexer.ml
+++ b/helm/software/components/content_pres/cicNotationLexer.ml
@@ -50,6 +50,10 @@ let is_ligature_char =
       true
     with Not_found -> false))
 
+let regexp we_proved = "we" utf8_blank+ "proved"
+let regexp we_have = "we" utf8_blank+ "have"
+let regexp let_rec = "let" utf8_blank+ "rec" 
+let regexp let_corec = "let" utf8_blank+  "corec"
 let regexp ident_decoration = '\'' | '?' | '`'
 let regexp ident_cont = ident_letter | xml_digit | '_'
 let regexp ident = ident_letter ident_cont* ident_decoration*
@@ -109,8 +113,8 @@ let level2_meta_keywords =
 let level2_ast_keywords = Hashtbl.create 23
 let _ =
   List.iter (fun k -> Hashtbl.add level2_ast_keywords k ())
-  [ "CProp"; "Prop"; "Type"; "Set"; "let"; "rec"; "corec"; "match";
-    "with"; "in"; "and"; "to"; "as"; "on"; "return" ]
+  [ "CProp"; "Prop"; "Type"; "Set"; "let"; "match";
+  "with"; "in"; "and"; "to"; "as"; "on"; "return"; "done" ]
 
 let add_level2_ast_keyword k = Hashtbl.add level2_ast_keywords k ()
 let remove_level2_ast_keyword k = Hashtbl.remove level2_ast_keywords k
@@ -274,6 +278,10 @@ let rec ligatures_token k =
 
 and level2_ast_token =
   lexer
+  | let_rec -> return lexbuf ("LETREC","")
+  | let_corec -> return lexbuf ("LETCOREC","")
+  | we_proved -> return lexbuf ("WEPROVED","")
+  | we_have -> return lexbuf ("WEHAVE","")
   | utf8_blank+ -> ligatures_token level2_ast_token lexbuf
   | meta ->
      let s = Ulexing.utf8_lexeme lexbuf in