Package lexer

Examples of lexer.Lexer.addRule()

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  public static void main(String[] args) {
    Lexer lexer = new Lexer();
    final Type<Integer> integer = new Type<>("Integer");
    final Type<Double> decimal = new Type<>("Decimal");
    lexer.addRule("Integer", new Rule<Integer>("[0-9]+", integer, new Action<Integer>() {
      @Override
      public Token action(Matcher matcher, Lexer lexer, Type<Integer> type) {
        return new Token(new Integer(matcher.group()), type);
      }
    }));
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      @Override
      public Token action(Matcher matcher, Lexer lexer, Type<Integer> type) {
        return new Token(new Integer(matcher.group()), type);
      }
    }));
    lexer.addRule("Decimal", new Rule<Double>("([0-9]+\\.[0-9]*|[0-9]*\\.[0-9]+)", decimal, new Action<Double>() {
      @Override
      public Token action(Matcher matcher, Lexer lexer, Type<Double> type) {
        return new Token(new Double(matcher.group()), type);
      }
    }));
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