| 1 | (* |
| 2 | * Dynamic web page generation with Standard ML |
| 3 | * Copyright (C) 2003 Adam Chlipala |
| 4 | * |
| 5 | * This library is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU Lesser General Public |
| 7 | * License as published by the Free Software Foundation; either |
| 8 | * version 2.1 of the License, or (at your option) any later version. |
| 9 | * |
| 10 | * This library is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | * Lesser General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU Lesser General Public |
| 16 | * License along with this library; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | *) |
| 19 | |
| 20 | (* Template language parser *) |
| 21 | |
| 22 | signature PARSE = |
| 23 | sig |
| 24 | val parse : string -> Tree.block |
| 25 | end |
| 26 | |
| 27 | structure Parse :> PARSE = |
| 28 | struct |
| 29 | |
| 30 | structure MltLrVals = MltLrValsFn(structure Token = LrParser.Token) |
| 31 | structure Lex = MltLexFn(structure Tokens = MltLrVals.Tokens) |
| 32 | structure MltP = Join(structure ParserData = MltLrVals.ParserData |
| 33 | structure Lex = Lex |
| 34 | structure LrParser = LrParser) |
| 35 | |
| 36 | (* The main parsing routine *) |
| 37 | fun parse filename = |
| 38 | let val _ = (ErrorMsg.reset(); ErrorMsg.fileName := filename) |
| 39 | val file = TextIO.openIn filename |
| 40 | fun get _ = TextIO.input file |
| 41 | fun parseerror(s,p1,p2) = ErrorMsg.error (SOME (p1,p2)) s |
| 42 | val lexer = LrParser.Stream.streamify (Lex.makeLexer get) |
| 43 | val (absyn, _) = MltP.parse(30,lexer, parseerror, ()) |
| 44 | in |
| 45 | TextIO.closeIn file; |
| 46 | absyn |
| 47 | end |
| 48 | handle LrParser.ParseError => raise ErrorMsg.Error |
| 49 | end |