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1
28
29 package org.jruby.ast.visitor.rewriter;
30
31 import java.io.BufferedReader  ;
32 import java.io.FileInputStream ;
33 import java.io.FileNotFoundException ;
34 import java.io.IOException ;
35 import java.io.InputStreamReader ;
36
37 import org.jruby.ast.Node;
38 import org.jruby.common.NullWarnings;
39 import org.jruby.lexer.yacc.LexerSource;
40 import org.jruby.parser.DefaultRubyParser;
41 import org.jruby.parser.RubyParserConfiguration;
42 import org.jruby.parser.RubyParserPool;
43
44 public class SourceRewriterMain {
45
46 public static void main(String [] args) {
47
48 if (args.length < 1) {
49 System.err.println("Please specify a sourcefile.");
50 return;
51 }
52
53 DefaultRubyParser parser = RubyParserPool.getInstance().borrowParser();
54 parser.setWarnings(new NullWarnings());
55
56 LexerSource lexerSource = null;
57 BufferedReader reader = null;
58 try {
59 reader = new BufferedReader (new InputStreamReader (new FileInputStream (args[0])));
60 lexerSource = new LexerSource(args[0], reader);
61 } catch (FileNotFoundException e) {
62 System.err.println("Could not find the file:");
63 System.err.println(args[0]);
64 return;
65 }
66
67 Node rootNode = parser.parse(new RubyParserConfiguration(), lexerSource).getAST();
68 if (rootNode == null) {
69 System.err.println("Source File seems to be empty.");
70 return;
71 }
72
73 StringBuffer buffer = new StringBuffer ();
74 String line;
75 try {
76 reader = new BufferedReader (new InputStreamReader (new FileInputStream (args[0])));
77
78 while ((line = reader.readLine()) != null) {
79 buffer.append(line);
80 buffer.append('\n');
81 }
82 } catch (IOException e) {
83 System.err.println("Could not read the Sourcefile.");
84 }
85
86 ReWriteVisitor visitor = new ReWriteVisitor(System.out, buffer.toString());
87 rootNode.accept(visitor);
88 visitor.flushStream();
89
90 System.out.println("\n");
91 }
92 }
93 |
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