net.oneandone.mork.parser

Class Parser

java.lang.Object

net.oneandone.mork.parser.Parser

public class Parser
extends Object

Push down automaton, performing LR parsing

Field Summary

Fields

Modifier and Type	Field and Description
static char	REDUCE
static char	SHIFT
static char	SKIP
static char	SPECIAL operand is one of the SPECIAL_xx values
static char	SPECIAL_ACCEPT
static char	SPECIAL_CONFLICT higher operand bits used to index resolver.
static char	SPECIAL_ERROR lowest two operand bits

Constructor Summary

Constructors

Constructor and Description
Parser(ParserTable table, ConflictResolver[] resolvers, ScannerFactory scannerFactory)

Method Summary

Modifier and Type	Method and Description
int	getLeft(int production) returns the subject symbol of the production
int	getState()
ParserTable	getTable()
Parser	newInstance()
Object	pop()
void	push(int state, Object node)
Object	run(Position position, Reader src, TreeBuilder treeBuilder, PrintWriter verbose)
void	setErrorHandler(ErrorHandler errorHandler)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

SPECIAL

public static final char SPECIAL

operand is one of the SPECIAL_xx values

See Also:

Constant Field Values

SHIFT

public static final char SHIFT

See Also:

Constant Field Values

REDUCE

public static final char REDUCE

See Also:

Constant Field Values

SKIP

public static final char SKIP

See Also:

Constant Field Values

SPECIAL_ERROR

public static final char SPECIAL_ERROR

lowest two operand bits

See Also:

Constant Field Values

SPECIAL_ACCEPT

public static final char SPECIAL_ACCEPT

See Also:

Constant Field Values

SPECIAL_CONFLICT

public static final char SPECIAL_CONFLICT

higher operand bits used to index resolver.

See Also:

Constant Field Values

Constructor Detail

Parser

public Parser(ParserTable table,
              ConflictResolver[] resolvers,
              ScannerFactory scannerFactory)

Method Detail

getTable

public ParserTable getTable()

setErrorHandler

public void setErrorHandler(ErrorHandler errorHandler)

newInstance

public Parser newInstance()

run

public Object run(Position position,
                  Reader src,
                  TreeBuilder treeBuilder,
                  PrintWriter verbose)
           throws IOException

Throws:

IOException

getLeft

public int getLeft(int production)

returns the subject symbol of the production

getState

public int getState()

pop

public Object pop()

push

public void push(int state,
                 Object node)