org.jfree.formula.parser

Class JavaCharStream


public class JavaCharStream
extends java.lang.Object

An implementation of interface CharStream, where the stream is assumed to contain only ASCII characters (with java-like unicode escape processing).

Field Summary

protected int[]
bufcolumn
protected char[]
buffer
protected int[]
bufline
int
bufpos
protected int
column
protected int
inBuf
protected java.io.Reader
inputStream
protected int
line
protected int
maxNextCharInd
protected char[]
nextCharBuf
protected int
nextCharInd
protected boolean
prevCharIsCR
protected boolean
prevCharIsLF
static boolean
staticFlag
protected int
tabSize

Constructor Summary

JavaCharStream(java.io.InputStream dstream)
JavaCharStream(java.io.InputStream dstream, String encoding)
JavaCharStream(java.io.InputStream dstream, String encoding, int startline, int startcolumn)
JavaCharStream(java.io.InputStream dstream, String encoding, int startline, int startcolumn, int buffersize)
JavaCharStream(java.io.InputStream dstream, int startline, int startcolumn)
JavaCharStream(java.io.InputStream dstream, int startline, int startcolumn, int buffersize)
JavaCharStream(java.io.Reader dstream)
JavaCharStream(java.io.Reader dstream, int startline, int startcolumn)
JavaCharStream(java.io.Reader dstream, int startline, int startcolumn, int buffersize)

Method Summary

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

Field Details

bufcolumn

protected int[] bufcolumn

buffer

protected char[] buffer

bufline

protected int[] bufline

bufpos

public int bufpos

column

protected int column

inBuf

protected int inBuf

inputStream

protected java.io.Reader inputStream

line

protected int line

maxNextCharInd

protected int maxNextCharInd

nextCharBuf

protected char[] nextCharBuf

nextCharInd

protected int nextCharInd

prevCharIsCR

protected boolean prevCharIsCR

prevCharIsLF

protected boolean prevCharIsLF

staticFlag

public static final boolean staticFlag
Field Value:
false

tabSize

protected int tabSize

Constructor Details

JavaCharStream

public JavaCharStream(java.io.InputStream dstream)

JavaCharStream

public JavaCharStream(java.io.InputStream dstream,
                      String encoding)
            throws java.io.UnsupportedEncodingException

JavaCharStream

public JavaCharStream(java.io.InputStream dstream,
                      String encoding,
                      int startline,
                      int startcolumn)
            throws java.io.UnsupportedEncodingException

JavaCharStream

public JavaCharStream(java.io.InputStream dstream,
                      String encoding,
                      int startline,
                      int startcolumn,
                      int buffersize)
            throws java.io.UnsupportedEncodingException

JavaCharStream

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

JavaCharStream

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

JavaCharStream

public JavaCharStream(java.io.Reader dstream)

JavaCharStream

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

JavaCharStream

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

Method Details

AdjustBuffSize

protected void AdjustBuffSize()

BeginToken

public char BeginToken()
            throws java.io.IOException

Done

public void Done()

ExpandBuff

protected void ExpandBuff(boolean wrapAround)

FillBuff

protected void FillBuff()
            throws java.io.IOException

GetImage

public String GetImage()

GetSuffix

public char[] GetSuffix(int len)

ReInit

public void ReInit(java.io.InputStream dstream)

ReInit

public void ReInit(java.io.InputStream dstream,
                   String encoding)
            throws java.io.UnsupportedEncodingException

ReInit

public void ReInit(java.io.InputStream dstream,
                   String encoding,
                   int startline,
                   int startcolumn)
            throws java.io.UnsupportedEncodingException

ReInit

public void ReInit(java.io.InputStream dstream,
                   String encoding,
                   int startline,
                   int startcolumn,
                   int buffersize)
            throws java.io.UnsupportedEncodingException

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)

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)

ReadByte

protected char ReadByte()
            throws java.io.IOException

UpdateLineColumn

protected void UpdateLineColumn(char c)

adjustBeginLineColumn

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

backup

public void backup(int amount)

getBeginColumn

public int getBeginColumn()

getBeginLine

public int getBeginLine()

getColumn

public int getColumn()

Deprecated.


getEndColumn

public int getEndColumn()

getEndLine

public int getEndLine()

getLine

public int getLine()

Deprecated.

See Also:
getEndLine()

getTabSize

protected int getTabSize(int i)

readChar

public char readChar()
            throws java.io.IOException

setTabSize

protected void setTabSize(int i)