Reformatter.java Source File

00001 package edu.ksu.cis.bandera.specification.ast;
00002 
00003 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
00004  * Bandera, a Java(TM) analysis and transformation toolkit           *
00005  * Copyright (C) 2000   Robby (robby@cis.ksu.edu)                    *
00006  * All rights reserved.                                              *
00007  *                                                                   *
00008  * This work was done as a project in the SAnToS Laboratory,         *
00009  * Department of Computing and Information Sciences, Kansas State    *
00010  * University, USA (http://www.cis.ksu.edu/santos).                  *
00011  * It is understood that any modification not identified as such is  *
00012  * not covered by the preceding statement.                           *
00013  *                                                                   *
00014  * This work is free software; you can redistribute it and/or        *
00015  * modify it under the terms of the GNU Library General Public       *
00016  * License as published by the Free Software Foundation; either      *
00017  * version 2 of the License, or (at your option) any later version.  *
00018  *                                                                   *
00019  * This work is distributed in the hope that it will be useful,      *
00020  * but WITHOUT ANY WARRANTY; without even the implied warranty of    *
00021  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU *
00022  * Library General Public License for more details.                  *
00023  *                                                                   *
00024  * You should have received a copy of the GNU Library General Public *
00025  * License along with this toolkit; if not, write to the             *
00026  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,      *
00027  * Boston, MA  02111-1307, USA.                                      *
00028  *                                                                   *
00029  * Java is a trademark of Sun Microsystems, Inc.                     *
00030  *                                                                   *
00031  * To submit a bug report, send a comment, or get the latest news on *
00032  * this project and other SAnToS projects, please visit the web-site *
00033  *                http://www.cis.ksu.edu/santos                      *
00034  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
00035 import java.io.*;
00036 import java.util.*;
00037 import edu.ksu.cis.bandera.specification.node.*;
00038 import edu.ksu.cis.bandera.specification.lexer.*;
00039 import edu.ksu.cis.bandera.specification.parser.*;
00040 public class Reformatter {
00041 /**
00042  * 
00043  * @return java.lang.String
00044  * @param format java.lang.String
00045  */
00046 public static String format(String format) throws Exception{
00047     String formatted =
00048             new Parser(new Lexer(new PushbackReader(new StringReader("\"" 
00049             + format + "\"")))).parse().toString().trim();
00050     StringBuffer buffer = new StringBuffer();
00051     for (StringTokenizer tokenizer = new StringTokenizer(formatted, "{}", true); tokenizer.hasMoreTokens();) {
00052         String token = tokenizer.nextToken();
00053         if ("{".equals(token)) {
00054             while (!"}".equals(tokenizer.nextToken()));
00055             buffer.append("{}");
00056         } else {
00057             buffer.append(token);
00058         }
00059     }
00060         
00061     return buffer.toString();
00062 }
00063 }