org.eclipse.ocl.parser.backtracking

Class OCLBacktrackingLexer

java.lang.Object

org.eclipse.ocl.lpg.AbstractLexer

org.eclipse.ocl.parser.backtracking.OCLBacktrackingLexer

All Implemented Interfaces:

lpg.runtime.RuleAction

public class OCLBacktrackingLexer
extends AbstractLexer
implements lpg.runtime.RuleAction

Constructor Summary

Constructors

Constructor and Description
OCLBacktrackingLexer(Environment<?,?,?,?,?,?,?,?,?,?,?,?> environment)
OCLBacktrackingLexer(Environment<?,?,?,?,?,?,?,?,?,?,?,?> environment, char[] chars)
OCLBacktrackingLexer(Environment<?,?,?,?,?,?,?,?,?,?,?,?> environment, char[] input_chars, java.lang.String filename, int tab)
OCLBacktrackingLexer(Environment<?,?,?,?,?,?,?,?,?,?,?,?> environment, java.io.Reader reader, java.lang.String filename)

Method Summary

Modifier and Type	Method and Description
DerivedLexStream	getILexStream()
int[]	getKeywordKinds() Queries the token kinds, as defined by my keyword lexer, of tokens that are keywords in by grammar.
int	getLeftSpan()
lpg.runtime.ILexStream	getLexStream() Deprecated. replaced by getILexStream()
Environment<?,?,?,?,?,?,?,?,?,?,?,?>	getOCLEnvironment()
lpg.runtime.LexParser	getParser()
lpg.runtime.ParseTable	getParseTable()
int	getRhsFirstTokenIndex(int i)
int	getRhsLastTokenIndex(int i)
int	getRightSpan()
int	getToken(int i)
void	initialize(char[] content, java.lang.String filename) Deprecated. function replaced by reset(char [] content, String filename)
void	lexer(DerivedPrsStream prsStream) Runs the lexer's with the provided parseStream
void	lexer(DerivedPrsStream prsStream, int start_offset, int end_offset) Runs the lexer's with the provided parseStream in specific offset of the input
void	lexer(lpg.runtime.Monitor monitor, DerivedPrsStream prsStream) Runs the lexer's with the provided parseStream and the given monitor.
void	lexer(lpg.runtime.Monitor monitor, DerivedPrsStream prsStream, int start_offset, int end_offset) Runs the lexer's with the provided parseStream in specific offset of the input
void	reportLexicalError(int startLoc, int endLoc) If a parse stream was not passed to this Lexical analyser then we simply report a lexical error.
void	reset(char[] input_chars, java.lang.String filename) Resets the lexer's input with the given char's array.
void	reset(char[] input_chars, java.lang.String filename, int tab) Resets the lexer's input with the given char's array.
void	reset(java.io.Reader reader, java.lang.String filename) Resets the lexer's input with the given Reader
void	resetKeywordLexer() Rsets the lexer's keywordLexer
void	ruleAction(int ruleNumber)

Methods inherited from class org.eclipse.ocl.lpg.AbstractLexer

getEnvironment, getInputChars, initialize, initialize, lexToTokens, lexToTokens

Methods inherited from class java.lang.Object

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

Constructor Detail

OCLBacktrackingLexer

public OCLBacktrackingLexer(Environment<?,?,?,?,?,?,?,?,?,?,?,?> environment)

OCLBacktrackingLexer

public OCLBacktrackingLexer(Environment<?,?,?,?,?,?,?,?,?,?,?,?> environment,
                            char[] chars)

OCLBacktrackingLexer

public OCLBacktrackingLexer(Environment<?,?,?,?,?,?,?,?,?,?,?,?> environment,
                            char[] input_chars,
                            java.lang.String filename,
                            int tab)

OCLBacktrackingLexer

public OCLBacktrackingLexer(Environment<?,?,?,?,?,?,?,?,?,?,?,?> environment,
                            java.io.Reader reader,
                            java.lang.String filename)
                     throws java.io.IOException

Throws:

java.io.IOException

Since:

3.0

Method Detail

getParseTable

public lpg.runtime.ParseTable getParseTable()

Specified by:

getParseTable in class AbstractLexer

Returns:

the lexer's ParseTable

getParser

public lpg.runtime.LexParser getParser()

Specified by:

getParser in class AbstractLexer

Returns:

the lexer's LexParser

getToken

public int getToken(int i)

getRhsFirstTokenIndex

public int getRhsFirstTokenIndex(int i)

getRhsLastTokenIndex

public int getRhsLastTokenIndex(int i)

getLeftSpan

public int getLeftSpan()

getRightSpan

public int getRightSpan()

resetKeywordLexer

public void resetKeywordLexer()

Description copied from class: AbstractLexer

Rsets the lexer's keywordLexer

Specified by:

resetKeywordLexer in class AbstractLexer

reset

public void reset(char[] input_chars,
                  java.lang.String filename)

Description copied from class: AbstractLexer

Resets the lexer's input with the given char's array.

Specified by:

reset in class AbstractLexer

Parameters:

input_chars - the new lexer's input

filename - a file name used for logging when encountering errors/warnings

reset

public void reset(char[] input_chars,
                  java.lang.String filename,
                  int tab)

Description copied from class: AbstractLexer

Resets the lexer's input with the given char's array.

Specified by:

reset in class AbstractLexer

Parameters:

input_chars - the new lexer's input

filename - a file name used for logging when encountering errors/warnings

tab - lexer's tab length.

getOCLEnvironment

public Environment<?,?,?,?,?,?,?,?,?,?,?,?> getOCLEnvironment()

getILexStream

public DerivedLexStream getILexStream()

Specified by:

getILexStream in class AbstractLexer

Returns:

the lexers's lexStream

getLexStream

@Deprecated
public lpg.runtime.ILexStream getLexStream()

Deprecated. replaced by getILexStream()

Specified by:

getLexStream in class AbstractLexer

Returns:

the lexer's lexStream

lexer

public void lexer(DerivedPrsStream prsStream)

Description copied from class: AbstractLexer

Runs the lexer's with the provided parseStream

Specified by:

lexer in class AbstractLexer

Parameters:

prsStream - the associated parseStream

lexer

public void lexer(lpg.runtime.Monitor monitor,
                  DerivedPrsStream prsStream)

Description copied from class: AbstractLexer

Runs the lexer's with the provided parseStream and the given monitor.

Specified by:

lexer in class AbstractLexer

Parameters:

monitor - the Monitor

prsStream - the associated parseStream

lexer

public void lexer(DerivedPrsStream prsStream,
                  int start_offset,
                  int end_offset)

Description copied from class: AbstractLexer

Runs the lexer's with the provided parseStream in specific offset of the input

Specified by:

lexer in class AbstractLexer

Parameters:

prsStream - the associated parseStream

start_offset - the start offset

end_offset - the end offset

lexer

public void lexer(lpg.runtime.Monitor monitor,
                  DerivedPrsStream prsStream,
                  int start_offset,
                  int end_offset)

Description copied from class: AbstractLexer

Runs the lexer's with the provided parseStream in specific offset of the input

Specified by:

lexer in class AbstractLexer

prsStream - the associated parseStream

start_offset - the start offset

end_offset - the end offset

reportLexicalError

public void reportLexicalError(int startLoc,
                               int endLoc)

If a parse stream was not passed to this Lexical analyser then we simply report a lexical error. Otherwise, we produce a bad token.

Specified by:

reportLexicalError in class AbstractLexer

Parameters:

startLoc - the offset the error starts

endLoc - the offset the error ends.

getKeywordKinds

public int[] getKeywordKinds()

Description copied from class: AbstractLexer

Queries the token kinds, as defined by my keyword lexer, of tokens that are keywords in by grammar.

Specified by:

getKeywordKinds in class AbstractLexer

Returns:

my keyword lexer's token kinds

initialize

@Deprecated
public void initialize(char[] content,
                                    java.lang.String filename)

Deprecated. function replaced by reset(char [] content, String filename)

reset

public void reset(java.io.Reader reader,
                  java.lang.String filename)
           throws java.io.IOException

Description copied from class: AbstractLexer

Resets the lexer's input with the given Reader

Specified by:

reset in class AbstractLexer

Parameters:

reader - the new lexer's input

filename - a file name used for logging when encountering errors/warnings

Throws:

java.io.IOException

Since:

3.0

ruleAction

public void ruleAction(int ruleNumber)

Specified by:

ruleAction in interface lpg.runtime.RuleAction