X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=ocaml%2Fparser.ml;h=27323229035957d99b78200cd93325a535a77185;hb=4f38fd688913f856c80ce24254e0f41314dabbea;hp=e410d751fc5ed0d2e007fcb4e54b2e3d5255644e;hpb=f7ba4d1225ca4fb09750f3d23b197b8372f1350b;p=fireball-separation.git

diff --git a/ocaml/parser.ml b/ocaml/parser.ml
index e410d75..2732322 100644
--- a/ocaml/parser.ml
+++ b/ocaml/parser.ml
@@ -166,12 +166,12 @@ let _ = prerr_endline (">>>" ^ string_of_term (parse "(\\x. x y z z1 k) z1 z j")
 let problem_of_string s =
 prerr_endline (s);
  let lines = Str.split (Str.regexp "[\n\r\x0c\t;]+") s in
- let lines = List.map String.trim lines in
+ (* let lines = List.map String.trim lines in *)
  let lines = List.filter ((<>) "") lines in
  prerr_endline("number of lines" ^ string_of_int (List.length lines));
  let aux (last, name, div, conv, ps) line =
   let chr = String.sub line 0 1 in
-  let line = String.sub line 1 (String.length line - 1) in
+  let line = String.trim (String.sub line 1 (String.length line - 1)) in
   if line = "" then chr, name, div, conv, ps else
   let rec aux' chr line =
    if chr = "#"
@@ -184,15 +184,19 @@ prerr_endline (s);
     then chr, name, div, line::conv, ps
    else if chr = "N"
     then chr, name, div, conv, line::ps
-   else if last = ""
-    then raise (ParsingError ("Unexpected at beginning of problem: " ^ chr))
-   else aux' last (chr ^ line) in
+   else if chr = " "
+    then aux' last line
+   else raise (ParsingError
+     ("Unexpected at beginning of problem: `" ^ chr ^ "` " ^ line)) in
   aux' chr line in
- let _, name, div, conv, ps = List.fold_left aux ("#", "?", "", [], []) lines in
+ let _, name, div, conv, ps = List.fold_left aux ("#", "no label", "", [], []) lines in
  let div_provided = div <> "" in
  let div = if div_provided then div else "xxxxxx" in
  let strs = [div] @ ps @ conv in
 
+ if strs = ["BOT"]
+  then raise (ParsingError "empty problem");
+
  (* parse' *)
  let (tms, free) = parse_many strs in
  (* Fix arity *)
@@ -228,7 +232,7 @@ let ps = List.map (
 
 
 let from_file path =
- let lines = ref [] in
+ let lines = ref [""] in
  let chan = open_in path in
  let _ = try
   while true; do
@@ -237,6 +241,6 @@ let from_file path =
  with End_of_file ->
   close_in chan in
  let txt = String.concat "\n" (List.rev !lines) in
- let problems = Str.split (Str.regexp "\n\\$") txt in
+ let problems = Str.split (Str.regexp "[\n\r\x0c\t]+\\$") txt in
  List.map problem_of_string (List.tl (List.map ((^) "$") problems))
 ;;