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|
(**************************************************************************)
(* *)
(* The Why platform for program certification *)
(* Copyright (C) 2002-2008 *)
(* Romain BARDOU *)
(* Jean-Franois COUCHOT *)
(* Mehdi DOGGUY *)
(* Jean-Christophe FILLITRE *)
(* Thierry HUBERT *)
(* Claude MARCH *)
(* Yannick MOY *)
(* Christine PAULIN *)
(* Yann RGIS-GIANAS *)
(* Nicolas ROUSSET *)
(* Xavier URBAIN *)
(* *)
(* This software is free software; you can redistribute it and/or *)
(* modify it under the terms of the GNU General Public *)
(* License version 2, as published by the Free Software Foundation. *)
(* *)
(* This software is distributed in the hope that it will be useful, *)
(* but WITHOUT ANY WARRANTY; without even the implied warranty of *)
(* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. *)
(* *)
(* See the GNU General Public License version 2 for more details *)
(* (enclosed in the file GPL). *)
(* *)
(**************************************************************************)
{
open Printf
open Lexing
let debug = ref true
let callback = ref (fun f -> assert false : string -> unit)
(* we put everything not a goal into [buf] *)
let buf = Buffer.create 8192
let outc = ref stdout
let file = ref ""
let level = ref 0
let print s =
output_string !outc s
let end_file file =
close_out !outc;
!callback file
(*if not !debug then Sys.remove file*)
}
let space = [' ' '\t' '\n' '\r']
let ident = ['a'-'z' 'A'-'Z' '0'-'9']+
rule split = parse
| "(" space* "(theory" space* "(extends)"
{
Buffer.add_string buf (lexeme lexbuf) ;
split lexbuf
}
| ";;" space*"Why axiom"
{
Buffer.add_string buf ";;" ;
splitAxiom lexbuf;
split lexbuf
}
| "))" space* ")" space*";;" space* "END THEORY"
{
Buffer.add_string buf (lexeme lexbuf);
split lexbuf
}
| ";;" space* "Why obligation"
{
file := Filename.temp_file "rv" ".rv";
level := 0 ;
outc := open_out !file;
print (Buffer.contents buf);
print (lexeme lexbuf);
query lexbuf;
end_file !file;
split lexbuf
}
| eof {()}
|_
{
Buffer.add_string buf (lexeme lexbuf) ;
split lexbuf}
and splitAxiom = parse
| "(" { Buffer.add_char buf '(';
level := !level + 1 ;
splitAxiom lexbuf;
}
| ")" { Buffer.add_char buf ')';
level := !level - 1 ;
if !level <> 0 then splitAxiom lexbuf
}
| _ { Buffer.add_string buf (lexeme lexbuf);
splitAxiom lexbuf }
and query = parse
| "(" { print "(";
level := !level + 1 ;
query lexbuf;}
| ")" { print ")" ;
level := !level - 1 ;
if !level <> 0 then query lexbuf
}
| _ { print (lexeme lexbuf); query lexbuf }
{
let iter cb f =
callback := cb;
Buffer.reset buf;
let c = open_in f in
let lb = from_channel c in
split lb;
close_in c
}
|
