Examples of fri.patterns.interpreter.parsergenerator.Parser

fri.patterns.interpreter.parsergenerator.Parser

The universal bottom-up parser algorithm. Runs with a Lexer (containing the input), ParserTables (containing the syntax), and a Semantic (optional).

 private static final String [][] syntax =	{ { "Start", "\"Hello\"", "\"World\"" }, { Token.IGNORED, "`whitespaces`" }, }; SyntaxSeparation separation = new SyntaxSeparation(new Syntax(syntax)); LexerBuilder builder = new LexerBuilder(separation.getLexerSyntax(), separation.getIgnoredSymbols()); Lexer lexer = builder.getLexer(); lexer.setInput("\tHello \r\n\tWorld\n"); ParserTables parserTables = new SLRParserTables(separation.getParserSyntax()); Parser parser = new Parser(parserTables); parser.parse(lexer, new PrintSemantic());

    String [][] syntaxInput = {
      { "Start", "\"Hello\"", "\"World\"" },
      { Token.IGNORED, "`whitespaces`" },
    };
    
    Parser parser = builder.get(syntaxInput);
    boolean ok = parser.parse("Hello World");
    System.err.println("Parsing was "+ok);
  }

  };
  
  public static void main(String [] args)
    throws Exception
  {
    Parser parser = new SerializedParser().get(SLRParserTables.class, syntax, "HelloWorld2");  // generates "$HOME/.friware/parsers/HelloWorld2Parser.ser"
    parser.setInput("\tHello \r\n\tWorld\n");  // give the lexer some very complex input :-)
    parser.parse(new PrintSemantic());  // start parsing with a print-semantic
  }

    SyntaxSeparation separation = new SyntaxSeparation(new Syntax(syntax));  // separate lexer and parser syntax
    LexerBuilder builder = new LexerBuilder(separation.getLexerSyntax(), separation.getIgnoredSymbols());  // build a Lexer
    Lexer lexer = builder.getLexer();
    lexer.setInput("\tHello \r\n\tWorld\n");  // give the lexer some very complex input :-)
    ParserTables parserTables = new SLRParserTables(separation.getParserSyntax());
    Parser parser = new Parser(parserTables);
    parser.parse(lexer, new PrintSemantic());  // start parsing with a print-semantic
  }

Examples of fri.patterns.interpreter.parsergenerator.Parser

Related Classes of fri.patterns.interpreter.parsergenerator.Parser