Commit | Line | Data |
---|---|---|
c0a3b488 AC |
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 |