(* HCoop Domtool (http://hcoop.sourceforge.net/)
 * Copyright (c) 2006, Adam Chlipala
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *)

(* Domtool configuration language parser *)

structure Parse :> PARSE =
  struct 

    structure DomtoolLrVals = DomtoolLrValsFn(structure Token = LrParser.Token)
    structure Lex = DomtoolLexFn(structure Tokens = DomtoolLrVals.Tokens)
    structure DomtoolP = Join(structure ParserData = DomtoolLrVals.ParserData
                           structure Lex = Lex
                           structure LrParser = LrParser)

  (* The main parsing routine *)
  fun parse filename =
    let val _ = (ErrorMsg.fileName := filename)
	val file = TextIO.openIn filename
	fun get _ = TextIO.input file
	fun parseerror(s,p1,p2) = ErrorMsg.error (SOME (p1,p2)) s
	val lexer = LrParser.Stream.streamify (Lex.makeLexer get)
	val (absyn, _) = DomtoolP.parse(30,lexer, parseerror, ())
    in
      TextIO.closeIn file;
      absyn
    end
      handle LrParser.ParseError => raise ErrorMsg.Error
end