com.aptana.ide.lexer.ascii
Class AsciiLexer

java.lang.Object
  com.aptana.ide.lexer.AbstractLexer
      com.aptana.ide.lexer.ascii.AsciiLexer

All Implemented Interfaces:

ILexer

public class AsciiLexer
extends AbstractLexer

Author:

Kevin Lindsey, Pavel Petrochenko

Field Summary

Fields inherited from class com.aptana.ide.lexer.AbstractLexer

currentOffset, lastMatchedTokenIndex

Constructor Summary

AsciiLexer()

Method Summary

Range	find(java.lang.String groupName) Use the currently active language and group to locate the first position that matches that group.
char	getCharacterAt(int offset) Return the character at the given offset
java.lang.String	getSource() Get the text being processed by this lexer
protected char[]	getSourceCharacters() Get the character array for the current source
int	getSourceLength() Return the number of characters in this lexer's source code
char[]	getSourceUnsafe() TODO Remove this method later.
protected int	match() match
void	setSource(char[] value) Set the text to be processed by this lexer

Methods inherited from class com.aptana.ide.lexer.AbstractLexer

addLanguage, createLexeme, getCachedLexeme, getCurrentOffset, getCurrentTokenList, getEOFOffset, getGroup, getLanguage, getLanguages, getNextLexeme, getTokenList, isEOS, seal, setCurrentOffset, setEOFOffset, setGroup, setIgnoreSet, setLanguage, setLanguageAndGroup, setLexemeCache, setLexerState, setLexerState, setSource

Methods inherited from class java.lang.Object

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

Constructor Detail

AsciiLexer

public AsciiLexer()

Method Detail

find

public Range find(java.lang.String groupName)
           throws LexerException

Description copied from interface: ILexer

Use the currently active language and group to locate the first position that matches that group. Note that token switchTo's are ignored by this method

Specified by:

find in interface ILexer

Specified by:

find in class AbstractLexer

Parameters:

groupName - The current language's group name that contains the patterns to find

Returns:

Returns an Range where the starting offset is the point where the match occurred and the ending offset is the position where the match ended. If there is no match, then an empty Range will be returned

Throws:

LexerException

See Also:

ILexer.find(java.lang.String)

getCharacterAt

public char getCharacterAt(int offset)

Description copied from interface: ILexer

Return the character at the given offset

Specified by:

getCharacterAt in interface ILexer

Specified by:

getCharacterAt in class AbstractLexer

Parameters:

offset - The offset within the source

Returns:

The character at the given offset

See Also:

ILexer.getCharacterAt(int)

getSource

public java.lang.String getSource()

Description copied from interface: ILexer

Get the text being processed by this lexer

Specified by:

getSource in interface ILexer

Specified by:

getSource in class AbstractLexer

Returns:

The source text

See Also:

ILexer.getSource()

getSourceCharacters

protected char[] getSourceCharacters()

Get the character array for the current source

Specified by:

getSourceCharacters in class AbstractLexer

Returns:

char[]

getSourceLength

public int getSourceLength()

Description copied from interface: ILexer

Return the number of characters in this lexer's source code

Specified by:

getSourceLength in interface ILexer

Specified by:

getSourceLength in class AbstractLexer

Returns:

Returns the source code character count

See Also:

ILexer.getSourceLength()

setSource

public void setSource(char[] value)

Description copied from interface: ILexer

Set the text to be processed by this lexer

Specified by:

setSource in interface ILexer

Specified by:

setSource in class AbstractLexer

Parameters:

value - The new source text

See Also:

ILexer.setSource(char[])

match

protected int match()

Description copied from class: AbstractLexer

match

Specified by:

match in class AbstractLexer

Returns:

Returns the position of the last failed or successful match

See Also:

AbstractLexer.match()

getSourceUnsafe

public char[] getSourceUnsafe()

Description copied from interface: ILexer

TODO Remove this method later.

Returns:

reference to underlying char array

See Also:

ILexer.getSourceUnsafe()