Examples of org.antlr.runtime.ANTLRFileStream

org.antlr.runtime.ANTLRFileStream
This is a char buffer stream that is loaded from a file all at once when you construct the object. This looks very much like an ANTLReader or ANTLRInputStream, but it's a special case since we know the exact size of the object to load. We can avoid lots of data copying.

/*
      if ( lexer==null ) {
        lexer = new JavaLexer((org.antlr.runtime.CharStream)null);
      }
*/
      lexer = new JavaLexer(new ANTLRFileStream(f));
      CommonTokenStream tokens = new CommonTokenStream();
//      tokens.discardOffChannelTokens(true);
      tokens.setTokenSource(lexer);


/*

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    try {
      // Create a scanner that reads from the input stream passed to us
      if ( lexer==null ) {
        lexer = new JavaLexer();
      }
      lexer.setCharStream(new ANTLRFileStream(f));
      CommonTokenStream tokens = new CommonTokenStream();
      tokens.discardOffChannelTokens(true);
      tokens.setTokenSource(lexer);
      long start = System.currentTimeMillis();
      tokens.LT(1); // force load

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    try {
      // Create a scanner that reads from the input stream passed to us
      if ( lexer==null ) {
        lexer = new JavaLexer();
      }
      lexer.setCharStream(new ANTLRFileStream(f));
      CommonTokenStream tokens = new CommonTokenStream();
//      tokens.discardOffChannelTokens(true);
      tokens.setTokenSource(lexer);
      long start = System.currentTimeMillis();
      tokens.LT(1); // force load

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  protected abstract T internalParse(File source, CharStream input) throws IOException;
  
  public T parse(File source) throws IOException
  {
    ANTLRFileStream input = new ANTLRFileStream(source.getAbsolutePath());
    return internalParse(source,input);
  }

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         */
        @Override
        ICSSDocument parse() throws IOException
        {
            final List<ICompilerProblem> problems = new ArrayList<ICompilerProblem>();
            final CSSDocument css = CSSDocument.parse(new ANTLRFileStream(cssFileName), problems);
            if (!problems.isEmpty())
                throw new ProblemParsingCSSRuntimeException(problems);
            if (css != null)
                return css;
            return EMPTY_CSS_DOCUMENT;

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    {
        final List<ICompilerProblem> syntaxErrors = new ArrayList<ICompilerProblem>();
        CSSDocument css = null;
        try
        {
            final ANTLRFileStream fileStream = new ANTLRFileStream(cssFile.getPath());
            css = CSSDocument.parse(fileStream, syntaxErrors);
        }
        catch (IOException e)
        {
            ICompilerProblem problem = new FileNotFoundProblem(cssFile.getPath());

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    }
  }
  
  public static void main(String[] args) {
    try {
      ANTLRFileStream input = new ANTLRFileStream(args[0]);
      yanlLexer lexer = new yanlLexer(input);
      
      CommonTokenStream tokens = new CommonTokenStream (lexer);
      yanlParser parser = new yanlParser(tokens);

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  public static void main(String[] args) {
    if (args.length != 1) {
      System.out.println("Usage: java -jar IRDemo.jar <file.ir>");
    }
    else try {
      ANTLRFileStream input = new ANTLRFileStream(args[0]);
      IRLexer lexer = new IRLexer(input);
      
      CommonTokenStream tokens = new CommonTokenStream (lexer);
      IRParser parser = new IRParser(tokens);

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public class Main {    
  public static void main(String args[])
    {
    try {
            ANTLRFileStream input = new ANTLRFileStream(args[0]);
            CoolIrLexer lexer = new CoolIrLexer(input);
      CommonTokenStream tokens = new CommonTokenStream(lexer);
      CoolIrParser parser = new CoolIrParser(tokens);
      
      Program p = parser.program();

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import org.antlr.runtime.RecognitionException;


public class Main {
  public static void main(String args[]) {
    try {
            ANTLRFileStream input = new ANTLRFileStream(args[0]);
            CoolIrLexer lexer = new CoolIrLexer(input);
      CommonTokenStream tokens = new CommonTokenStream(lexer);
      CoolIrParser parser = new CoolIrParser(tokens);
      
      Program p = parser.program();

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