infosapient.rulecompiler
Class ASCII_CharStream

java.lang.Object
  |
  +--infosapient.rulecompiler.ASCII_CharStream

public final class ASCII_CharStream

extends java.lang.Object

An implementation of interface CharStream, where the stream is assumed to contain only ASCII characters (without unicode processing).

Field Summary

(package private) int	available
private int[]	bufcolumn
private char[]	buffer
private int[]	bufline
int	bufpos
(package private) int	bufsize
private int	column
private int	inBuf
private java.io.Reader	inputStream
private int	line
private int	maxNextCharInd
private boolean	prevCharIsCR
private boolean	prevCharIsLF
static boolean	staticFlag
(package private) int	tokenBegin

Constructor Summary

ASCII_CharStream(java.io.InputStream dstream, int startline, int startcolumn)

ASCII_CharStream(java.io.InputStream dstream, int startline, int startcolumn, int buffersize)

ASCII_CharStream(java.io.Reader dstream, int startline, int startcolumn)

ASCII_CharStream(java.io.Reader dstream, int startline, int startcolumn, int buffersize)

Method Summary

void	adjustBeginLineColumn(int newLine, int newCol) Method to adjust line and column numbers for the start of a token.
void	backup(int amount)
char	BeginToken()
void	Done()
private void	ExpandBuff(boolean wrapAround)
private void	FillBuff()
int	getBeginColumn()
int	getBeginLine()
int	getEndColumn()
int	getEndLine()
java.lang.String	GetImage()
char[]	GetSuffix(int len)
char	readChar()
void	ReInit(java.io.InputStream dstream, int startline, int startcolumn)
void	ReInit(java.io.InputStream dstream, int startline, int startcolumn, int buffersize)
void	ReInit(java.io.Reader dstream, int startline, int startcolumn)
void	ReInit(java.io.Reader dstream, int startline, int startcolumn, int buffersize)
private void	UpdateLineColumn(char c)

Methods inherited from class java.lang.Object

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

Field Detail

staticFlag

public static final boolean staticFlag

bufsize

int bufsize

available

int available

tokenBegin

int tokenBegin

bufpos

public int bufpos

bufline

private int[] bufline

bufcolumn

private int[] bufcolumn

column

private int column

line

private int line

prevCharIsCR

private boolean prevCharIsCR

prevCharIsLF

private boolean prevCharIsLF

inputStream

private java.io.Reader inputStream

buffer

private char[] buffer

maxNextCharInd

private int maxNextCharInd

inBuf

private int inBuf

Constructor Detail

ASCII_CharStream

public ASCII_CharStream(java.io.InputStream dstream,
                        int startline,
                        int startcolumn)

ASCII_CharStream

public ASCII_CharStream(java.io.InputStream dstream,
                        int startline,
                        int startcolumn,
                        int buffersize)

ASCII_CharStream

public ASCII_CharStream(java.io.Reader dstream,
                        int startline,
                        int startcolumn)

ASCII_CharStream

public ASCII_CharStream(java.io.Reader dstream,
                        int startline,
                        int startcolumn,
                        int buffersize)

Method Detail

adjustBeginLineColumn

public void adjustBeginLineColumn(int newLine,
                                  int newCol)

Method to adjust line and column numbers for the start of a token.

backup

public final void backup(int amount)

BeginToken

public final char BeginToken()
                      throws java.io.IOException

Done

public void Done()

ExpandBuff

private final void ExpandBuff(boolean wrapAround)

FillBuff

private final void FillBuff()
                     throws java.io.IOException

getBeginColumn

public final int getBeginColumn()

getBeginLine

public final int getBeginLine()

getEndColumn

public final int getEndColumn()

getEndLine

public final int getEndLine()

GetImage

public final java.lang.String GetImage()

GetSuffix

public final char[] GetSuffix(int len)

readChar

public final char readChar()
                    throws java.io.IOException

ReInit

public void ReInit(java.io.InputStream dstream,
                   int startline,
                   int startcolumn)

ReInit

public void ReInit(java.io.InputStream dstream,
                   int startline,
                   int startcolumn,
                   int buffersize)

ReInit

public void ReInit(java.io.Reader dstream,
                   int startline,
                   int startcolumn)

ReInit

public void ReInit(java.io.Reader dstream,
                   int startline,
                   int startcolumn,
                   int buffersize)

UpdateLineColumn

private final void UpdateLineColumn(char c)