com.massa.dsl.block

Class LexerBlockResolverWrapper

java.lang.Object

com.massa.dsl.block.LexerBlockResolverWrapper

All Implemented Interfaces:

LexerBlockResolver, Serializable

public class LexerBlockResolverWrapper
extends Object
implements LexerBlockResolver

Wraps a Lexer Block Resolver to override some behaviors.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
LexerBlockResolverWrapper(LexerBlock b, LexerBlockResolver w)
LexerBlockResolverWrapper(LexerBlockResolver w)

Method Summary

Modifier and Type	Method and Description
void	consume(LexerParser parser) Indicates that this parser has been consumed.
LexerBlock	getBlock()
LexerBlockResolver	getWrapped()
LexerParser	identify(LexerParser parentParser) Should Calls LexerBlockResolver.identify(LexerParser, boolean) with safe mode computed from unicity, mandatory flag min/max occur and already consumed parsers.
LexerParser	identify(LexerParser parentParser, boolean safeMode) Identifies the lexer to use between candidates identified by LexerBlockResolver.resolveLexers(Grammar) to handle the following source part.
LexerParser	identifyAndConsume(LexerParser parentParser) Short cut to call both identity and consume
LexerParser	identifyAndConsume(LexerParser parentParser, boolean safeMode) Short cut to call both identity and consume
void	inject(Object target, LexerParser value) Method used to inject result.
boolean	isExcluded(Matcher matcher)
boolean	isHasBeenConsumed()
boolean	isMaxConsommationReached()
boolean	isMinConsommationReached()
List<Lexer>	resolveLexers(Grammar grammar) Resolves the lexer(s) described by this block's configuration that can still be candidate in this parsing operation.

Methods inherited from class java.lang.Object

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

Constructor Detail

LexerBlockResolverWrapper

public LexerBlockResolverWrapper(LexerBlockResolver w)

LexerBlockResolverWrapper

public LexerBlockResolverWrapper(LexerBlock b,
                                 LexerBlockResolver w)

Method Detail

getWrapped

public LexerBlockResolver getWrapped()

resolveLexers

public List<Lexer> resolveLexers(Grammar grammar)
                          throws DslException

Description copied from interface: LexerBlockResolver

Resolves the lexer(s) described by this block's configuration that can still be candidate in this parsing operation.

Specified by:

resolveLexers in interface LexerBlockResolver

Throws:

DslException

identify

public LexerParser identify(LexerParser parentParser)
                     throws IOException,
                            DslException

Description copied from interface: LexerBlockResolver

Should Calls LexerBlockResolver.identify(LexerParser, boolean) with safe mode computed from unicity, mandatory flag min/max occur and already consumed parsers.

Specified by:

identify in interface LexerBlockResolver

Throws:

IOException

DslException

identify

public LexerParser identify(LexerParser parentParser,
                            boolean safeMode)
                     throws IOException,
                            DslException

Description copied from interface: LexerBlockResolver

Identifies the lexer to use between candidates identified by LexerBlockResolver.resolveLexers(Grammar) to handle the following source part.
The chosen one will be the lexer with the longuest start matching the source.

Specified by:

identify in interface LexerBlockResolver

Parameters:

parentParser - Parent parser

safeMode - If false, an exception will be thrown if no lexer is identified

Returns:

Identified Lexer

Throws:

IOException

DslException

consume

public void consume(LexerParser parser)
             throws DslException

Description copied from interface: LexerBlockResolver

Indicates that this parser has been consumed. Depending on the type and configuration (unicity, etc ...) of the block, different action can be taken: none, the parser will not be candidate anymore, no candidate will be resolved anymore.

Specified by:

consume in interface LexerBlockResolver

Throws:

DslException

identifyAndConsume

public LexerParser identifyAndConsume(LexerParser parentParser)
                               throws IOException,
                                      DslException

Description copied from interface: LexerBlockResolver

Short cut to call both identity and consume

Specified by:

identifyAndConsume in interface LexerBlockResolver

Throws:

IOException

DslException

identifyAndConsume

public LexerParser identifyAndConsume(LexerParser parentParser,
                                      boolean safeMode)
                               throws IOException,
                                      DslException

Description copied from interface: LexerBlockResolver

Short cut to call both identity and consume

Specified by:

identifyAndConsume in interface LexerBlockResolver

Throws:

IOException

DslException

isHasBeenConsumed

public boolean isHasBeenConsumed()

Specified by:

isHasBeenConsumed in interface LexerBlockResolver

Returns:

Consumed at least once ?

isMinConsommationReached

public boolean isMinConsommationReached()

Specified by:

isMinConsommationReached in interface LexerBlockResolver

Returns:

Has been consumed enough to respect mandatory flag and min-occur ?

isMaxConsommationReached

public boolean isMaxConsommationReached()

Specified by:

isMaxConsommationReached in interface LexerBlockResolver

Returns:

Can still be consumed and respect unicity flag and max-occur ?

inject

public void inject(Object target,
                   LexerParser value)
            throws UtilsException

Description copied from interface: LexerBlockResolver

Method used to inject result.

Specified by:

inject in interface LexerBlockResolver

Throws:

UtilsException

isExcluded

public boolean isExcluded(Matcher matcher)
                   throws DslException

Specified by:

isExcluded in interface LexerBlockResolver

Returns:

true if the matcher has been specified as excluded.

Throws:

DslException

getBlock

public LexerBlock getBlock()

Specified by:

getBlock in interface LexerBlockResolver

Returns:

Parent block at the origin of this current instance.