src/edu/berkeley/sbp/misc/CommandLine.java

   1 // Copyright 2006 all rights reserved; see LICENSE file for BSD-style license
   2
   3 package edu.berkeley.sbp.misc;
   4
   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 java.io.*;
  10
  11 public class CommandLine {
  12
  13     public static void main(String[] argv) throws Throwable {
  14         String grammarFile = argv[0];
  15         String targetFile = argv[1];
  16         ByteArrayOutputStream baos = new ByteArrayOutputStream();
  17         try {
  18             System.setErr(new PrintStream(baos));
  19             Tree<String> res = new CharParser(MetaGrammar.newInstance()).parse(new FileInputStream(grammarFile)).expand1();
  20             Union meta = Grammar.create(res, "s",
  21                                         new Grammar.Bindings() {
  22                                             /*
  23                                             public Sequence createSequence(Production p) {
  24                                                 Sequence ret = super.createSequence(p);
  25                                                 if (ret != null) return ret;
  26                                                 return Sequence.create(p.nonTerminal, p.elements, p.drops, false);
  27                                             }
  28                                             */
  29                                         });
  30             CharInput input = new CharInput(new FileInputStream(targetFile), "", true);
  31             Tree ret = new CharParser(meta).parse(input).expand1();
  32             if (ret==null) throw new NullPointerException("CharParser returned null");
  33             System.out.println(ret);
  34             System.exit(0);
  35         } catch (Throwable e) {
  36             e.printStackTrace();
  37             System.out.println(new String(baos.toByteArray()));
  38             System.exit(-1);
  39         }
  40     }
  41
  42
  43 }