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+(* Copyright (c) 2008, Adam Chlipala
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ *   this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright notice,
+ *   this list of conditions and the following disclaimer in the documentation
+ *   and/or other materials provided with the distribution.
+ * - The names of contributors may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *)
+
+(* Laconic/Web language parser *)
+
+structure Compiler :> COMPILER = struct 
+
+structure LacwebLrVals = LacwebLrValsFn(structure Token = LrParser.Token)
+structure Lex = LacwebLexFn(structure Tokens = LacwebLrVals.Tokens)
+structure LacwebP = Join(structure ParserData = LacwebLrVals.ParserData
+                         structure Lex = Lex
+                         structure LrParser = LrParser)
+
+(* The main parsing routine *)
+fun parse filename =
+    let
+        val () = (ErrorMsg.resetErrors ();
+                  ErrorMsg.resetPositioning filename)
+	val file = TextIO.openIn filename
+	fun get _ = TextIO.input file
+	fun parseerror (s, p1, p2) = ErrorMsg.errorAt' (p1, p2) s
+	val lexer = LrParser.Stream.streamify (Lex.makeLexer get)
+	val (absyn, _) = LacwebP.parse (30, lexer, parseerror, ())
+    in
+        TextIO.closeIn file;
+        SOME absyn
+    end
+    handle LrParser.ParseError => NONE
+
+fun testParse filename =
+    case parse filename of
+        NONE => print "Parse error\n"
+      | SOME file =>
+        if ErrorMsg.anyErrors () then
+            print "Recoverable parse error\n"
+        else
+            (Print.print (LaconicPrint.p_file file);
+             print "\n")
+
+end