DSRG.VKB.E_SQL
Class ASCII_CharStream

java.lang.Object
  |
  +--DSRG.VKB.E_SQL.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  byte[] buffer
           
private  int[] bufline
           
 int bufpos
           
(package private)  int bufsize
           
private  int column
           
private  int inBuf
           
private  java.io.InputStream 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)
           
 
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 getColumn()
          Deprecated.  
 int getEndColumn()
           
 int getEndLine()
           
 java.lang.String GetImage()
           
 int getLine()
          Deprecated.  
 byte[] 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)
           
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.InputStream inputStream

buffer

private byte[] buffer

maxNextCharInd

private int maxNextCharInd

inBuf

private int inBuf
Constructor Detail

ASCII_CharStream

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

ASCII_CharStream

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

ExpandBuff

private final void ExpandBuff(boolean wrapAround)

FillBuff

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

BeginToken

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

UpdateLineColumn

private final void UpdateLineColumn(char c)

readChar

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

getColumn

public final int getColumn()
Deprecated.  
See Also:
getEndColumn()

getLine

public final int getLine()
Deprecated.  
See Also:
getEndLine()

getEndColumn

public final int getEndColumn()

getEndLine

public final int getEndLine()

getBeginColumn

public final int getBeginColumn()

getBeginLine

public final int getBeginLine()

backup

public final void backup(int amount)

ReInit

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

ReInit

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

GetImage

public final java.lang.String GetImage()

GetSuffix

public final byte[] GetSuffix(int len)

Done

public void Done()

adjustBeginLineColumn

public void adjustBeginLineColumn(int newLine,
                                  int newCol)
Method to adjust line and column numbers for the start of a token.