Package com.intellij.lexer

Class DummyLexer

java.lang.Object

com.intellij.lexer.Lexer

com.intellij.lexer.LexerBase

com.intellij.lexer.DummyLexer

Direct Known Subclasses:

EmptyLexer

public class DummyLexer
extends LexerBase

Constructor Summary

Constructors

Constructor and Description
DummyLexer(IElementType type)

Method Summary

Modifier and Type	Method and Description
void	advance() Advances the lexer to the next token.
int	getBufferEnd() Returns the offset at which the lexer will stop lexing.
java.lang.CharSequence	getBufferSequence() Returns the buffer sequence over which the lexer is running.
LexerPosition	getCurrentPosition() Returns the current position and state of the lexer.
int	getState() Returns the current state of the lexer.
int	getTokenEnd() Returns the end offset of the current token.
int	getTokenStart() Returns the start offset of the current token.
IElementType	getTokenType() Returns the token at the current position of the lexer or null if lexing is finished.
void	restore(LexerPosition position) Restores the lexer to the specified state and position.
void	start(java.lang.CharSequence buffer, int startOffset, int endOffset, int initialState) Prepare for lexing character data from buffer passed.

Methods inherited from class com.intellij.lexer.Lexer

getTokenSequence, getTokenText, start, start

Methods inherited from class java.lang.Object

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

Constructor Detail

DummyLexer

public DummyLexer(IElementType type)

Method Detail

start

public void start(java.lang.CharSequence buffer,
                  int startOffset,
                  int endOffset,
                  int initialState)

Description copied from class: Lexer

Prepare for lexing character data from buffer passed. Internal lexer state is supposed to be initialState. It is guaranteed that the value of initialState is the same as returned by Lexer.getState() method of this lexer at condition startOffset=getTokenStart(). This method is used to incrementally re-lex changed characters using lexing data acquired from this particular lexer sometime in the past.

Specified by:

start in class Lexer

Parameters:

buffer - character data for lexing.

startOffset - offset to start lexing from

endOffset - offset to stop lexing at

initialState - the initial state of the lexer.

getBufferSequence

public java.lang.CharSequence getBufferSequence()

Description copied from class: Lexer

Returns the buffer sequence over which the lexer is running. This method should return the same buffer instance which was passed to the start() method.

Specified by:

getBufferSequence in class Lexer

Returns:

the lexer buffer.

getState

public int getState()

Description copied from class: Lexer

Returns the current state of the lexer.

Specified by:

getState in class Lexer

Returns:

the lexer state.

getTokenType

public IElementType getTokenType()

Description copied from class: Lexer

Returns the token at the current position of the lexer or null if lexing is finished.

Specified by:

getTokenType in class Lexer

Returns:

the current token.

getTokenStart

public int getTokenStart()

Description copied from class: Lexer

Returns the start offset of the current token.

Specified by:

getTokenStart in class Lexer

Returns:

the current token start offset.

getTokenEnd

public int getTokenEnd()

Description copied from class: Lexer

Returns the end offset of the current token.

Specified by:

getTokenEnd in class Lexer

Returns:

the current token end offset.

advance

public void advance()

Description copied from class: Lexer

Advances the lexer to the next token.

Specified by:

advance in class Lexer

getCurrentPosition

public LexerPosition getCurrentPosition()

Description copied from class: Lexer

Returns the current position and state of the lexer.

Overrides:

getCurrentPosition in class LexerBase

Returns:

the lexer position and state.

restore

public void restore(LexerPosition position)

Description copied from class: Lexer

Restores the lexer to the specified state and position.

Overrides:

restore in class LexerBase

Parameters:

position - the state and position to restore to.

getBufferEnd

public int getBufferEnd()

Description copied from class: Lexer

Returns the offset at which the lexer will stop lexing. This method should return the length of the buffer or the value passed in the endOffset parameter to the start() method.

Specified by:

getBufferEnd in class Lexer

Returns:

the lexing end offset