fr.umlv.tatoo.runtime.lexer
Class Lexer<B extends LexerBuffer>

java.lang.Object
  fr.umlv.tatoo.runtime.lexer.Lexer<B>

Type Parameters:

B - type of the buffer.

All Implemented Interfaces:

SimpleLexer

Direct Known Subclasses:

Lexer.LexerImpl

public abstract class Lexer<B extends LexerBuffer>
extends Object
implements SimpleLexer

A Lexer represents a lexer process.

Author:

Julien Cervelle

See Also:

LexerBuilder

Nested Class Summary

static class

Lexer.LexerImpl<R,B extends LexerBuffer>

Method Summary

static <R,B extends LexerBuffer> Lexer<B>	createLexer(LexerTable<R> lexerTable, B buffer, LexerListener<? super R,? super B> listener, RuleActivator<R> activator, LifecycleHandler<B> lifecycleHandler, LexerErrorRecoveryPolicy<R,B> policy) Creates a new lexer process.
abstract RuleActivator<?>	getActivator() returns the RuleActivator used by this Lexer
B	getBuffer() returns the Buffer used by this Lexer
abstract LexerErrorRecoveryPolicy<?,?>	getLexerErrorRecoveryPolicy() Returns the LexerErrorRecoveryPolicy used by this lexer
abstract LexerListener<?,?>	getLexerListener() Returns the LexerListener this lexer notifies events to
LifecycleHandler<B>	getLifecycleHandler() Returns the LifecycleHandler for this lexer
abstract void	reset(B buffer) Reset the lexer to perform a new analysis.

Methods inherited from class java.lang.Object

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

Methods inherited from interface fr.umlv.tatoo.runtime.lexer.SimpleLexer

close, run, step

Method Detail

createLexer

public static <R,B extends LexerBuffer> Lexer<B> createLexer(LexerTable<R> lexerTable,
                                                             B buffer,
                                                             LexerListener<? super R,? super B> listener,
                                                             RuleActivator<R> activator,
                                                             LifecycleHandler<B> lifecycleHandler,
                                                             LexerErrorRecoveryPolicy<R,B> policy)

Creates a new lexer process.

Type Parameters:

R - type of rules.

B - type of buffer.

Parameters:

lexerTable - table representing automata used by the lexer.

buffer - character buffer the lexer has to process

listener - the token listener called after each token recognition

activator - the rule activator called before each token recognition start to determine the set of active rules

lifecycleHandler - handler called when reset or close the lexer.

Returns:

a new lexer.

getBuffer

public B getBuffer()

returns the Buffer used by this Lexer

Returns:

the Buffer used by this Lexer

getLifecycleHandler

public LifecycleHandler<B> getLifecycleHandler()

Returns the LifecycleHandler for this lexer

Returns:

the LifecycleHandler for this lexer

reset

public abstract void reset(B buffer)

Reset the lexer to perform a new analysis. All current states are discarded. The new buffer is the buffer supplied. This implementation calls LifecycleHandler.handleReset(Lexer) after the reset of the lexer.

getActivator

public abstract RuleActivator<?> getActivator()

returns the RuleActivator used by this Lexer

Returns:

the RuleActivator used by this Lexer

getLexerListener

public abstract LexerListener<?,?> getLexerListener()

Returns the LexerListener this lexer notifies events to

Returns:

the LexerListener this lexer notifies events to

getLexerErrorRecoveryPolicy

public abstract LexerErrorRecoveryPolicy<?,?> getLexerErrorRecoveryPolicy()

Returns the LexerErrorRecoveryPolicy used by this lexer

Returns:

the LexerErrorRecoveryPolicy used by this lexer