1 // Copyright 2006 all rights reserved; see LICENSE file for BSD-style license
3 package edu.berkeley.sbp.misc;
5 import edu.berkeley.sbp.*;
6 import edu.berkeley.sbp.misc.*;
7 import edu.berkeley.sbp.meta.*;
8 import edu.berkeley.sbp.chr.*;
9 import edu.berkeley.sbp.tib.*;
12 public class HaskellHelper {
13 public static void main(String[] argv) throws Throwable { help(argv[0], argv[1]); }
14 public static boolean isNull(Object o) { return o==null; }
15 public static Tree help(String grammarFile, String targetFile) throws Throwable {
17 Tree<String> res = new CharParser(MetaGrammar.newInstance()).parse(new FileInputStream(grammarFile)).expand1();
18 Union meta = GrammarBuilder.buildFromAST(res, "s", new File[0]);
19 Input input = new Tib(new FileInputStream(targetFile));
20 Tree ret = new CharParser(meta).parse(input).expand1();
21 if (ret==null) throw new NullPointerException("CharParser returned null");
23 } catch (Throwable e) {