PRTokeniser (iText 5.5.13.1 API)

java.lang.Object
- com.itextpdf.text.pdf.PRTokeniser

```
public class PRTokeniser
extends Object
```
Author:

Paulo Soares

Nested Class Summary

Nested Classes
Modifier and Type	Class and Description
`static class`	`PRTokeniser.TokenType` Enum representing the possible token types

Field Summary

Fields
Modifier and Type	Field and Description
`static boolean[]`	`delims`
`protected int`	`generation`
`protected boolean`	`hexString`
`protected int`	`reference`
`protected String`	`stringValue`
`protected PRTokeniser.TokenType`	`type`

Constructor Summary

Constructors
Constructor and Description
`PRTokeniser(RandomAccessFileOrArray file)` Creates a PRTokeniser for the specified `RandomAccessFileOrArray`.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`backOnePosition(int ch)`
`void`	`checkFdfHeader()`
`static long[]`	`checkObjectStart(byte[] line)`
`char`	`checkPdfHeader()`
`void`	`close()`
`RandomAccessFileOrArray`	`getFile()`
`long`	`getFilePointer()`
`int`	`getGeneration()`
`int`	`getHeaderOffset()`
`static int`	`getHex(int v)`
`int`	`getReference()` Gets current reference number.
`RandomAccessFileOrArray`	`getSafeFile()`
`long`	`getStartxref()`
`String`	`getStringValue()`
`PRTokeniser.TokenType`	`getTokenType()`
`int`	`intValue()`
`static boolean`	`isDelimiter(int ch)`
`static boolean`	`isDelimiterWhitespace(int ch)`
`boolean`	`isHexString()`
`static boolean`	`isWhitespace(int ch)` Is a certain character a whitespace? Currently checks on the following: '0', '9', '10', '12', '13', '32'.
`static boolean`	`isWhitespace(int ch, boolean isWhitespace)` Checks whether a character is a whitespace.
`long`	`length()`
`long`	`longValue()`
`boolean`	`nextToken()`
`void`	`nextValidToken()`
`int`	`read()`
`boolean`	`readLineSegment(byte[] input)` Reads data into the provided byte[].
`boolean`	`readLineSegment(byte[] input, boolean isNullWhitespace)` Reads data into the provided byte[].
`String`	`readString(int size)`
`void`	`seek(long pos)`
`void`	`throwError(String error)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - delims
```
public static final boolean[] delims
```
  - type
```
protected PRTokeniser.TokenType type
```
  - stringValue
```
protected String stringValue
```
  - reference
```
protected int reference
```
  - generation
```
protected int generation
```
  - hexString
```
protected boolean hexString
```
- Constructor Detail
  - PRTokeniser
```
public PRTokeniser(RandomAccessFileOrArray file)
```
    Creates a PRTokeniser for the specified RandomAccessFileOrArray. The beginning of the file is read to determine the location of the header, and the data source is adjusted as necessary to account for any junk that occurs in the byte source before the header
    
    Parameters:
    
    file - the source
- Method Detail
  - seek
```
public void seek(long pos)
          throws IOException
```
    Throws:
    
    IOException
  - getFilePointer
```
public long getFilePointer()
                    throws IOException
```
    Throws:
    
    IOException
  - close
```
public void close()
           throws IOException
```
    Throws:
    
    IOException
  - length
```
public long length()
            throws IOException
```
    Throws:
    
    IOException
  - read
```
public int read()
         throws IOException
```
    Throws:
    
    IOException
  - getSafeFile
```
public RandomAccessFileOrArray getSafeFile()
```
  - getFile
```
public RandomAccessFileOrArray getFile()
```
  - readString
```
public String readString(int size)
                  throws IOException
```
    Throws:
    
    IOException
  - isWhitespace
```
public static final boolean isWhitespace(int ch)
```
    Is a certain character a whitespace? Currently checks on the following: '0', '9', '10', '12', '13', '32'.
    The same as calling isWhiteSpace(ch, true).
    
    Parameters:
    
    ch - int
    
    Returns:
    
    boolean
    
    Since:
    
    5.5.1
  - isWhitespace
```
public static final boolean isWhitespace(int ch,
                                         boolean isWhitespace)
```
    Checks whether a character is a whitespace. Currently checks on the following: '0', '9', '10', '12', '13', '32'.
    
    Parameters:
    
    ch - int
    
    isWhitespace - boolean
    
    Returns:
    
    boolean
    
    Since:
    
    5.5.1
  - isDelimiter
```
public static final boolean isDelimiter(int ch)
```
  - isDelimiterWhitespace
```
public static final boolean isDelimiterWhitespace(int ch)
```
  - getTokenType
```
public PRTokeniser.TokenType getTokenType()
```
  - getStringValue
```
public String getStringValue()
```
  - getReference
```
public int getReference()
```
    Gets current reference number. If parsing was failed with NumberFormatException -1 will be return.
    
    Returns:
    
    a positive integer for correct reference, or negative for incorrect.
  - getGeneration
```
public int getGeneration()
```
  - backOnePosition
```
public void backOnePosition(int ch)
```
  - throwError
```
public void throwError(String error)
                throws IOException
```
    Throws:
    
    IOException
  - getHeaderOffset
```
public int getHeaderOffset()
                    throws IOException
```
    Throws:
    
    IOException
  - checkPdfHeader
```
public char checkPdfHeader()
                    throws IOException
```
    Throws:
    
    IOException
  - checkFdfHeader
```
public void checkFdfHeader()
                    throws IOException
```
    Throws:
    
    IOException
  - getStartxref
```
public long getStartxref()
                  throws IOException
```
    Throws:
    
    IOException
  - getHex
```
public static int getHex(int v)
```
  - nextValidToken
```
public void nextValidToken()
                    throws IOException
```
    Throws:
    
    IOException
  - nextToken
```
public boolean nextToken()
                  throws IOException
```
    Throws:
    
    IOException
  - longValue
```
public long longValue()
```
  - intValue
```
public int intValue()
```
  - readLineSegment
```
public boolean readLineSegment(byte[] input)
                        throws IOException
```
    Reads data into the provided byte[]. Checks on leading whitespace. See isWhiteSpace(int) or isWhiteSpace(int, boolean) for a list of whitespace characters.
    The same as calling readLineSegment(input, true).
    
    Parameters:
    
    input - byte[]
    
    Returns:
    
    boolean
    
    Throws:
    
    IOException
    
    Since:
    
    5.5.1
  - readLineSegment
```
public boolean readLineSegment(byte[] input,
                               boolean isNullWhitespace)
                        throws IOException
```
    Reads data into the provided byte[]. Checks on leading whitespace. See isWhiteSpace(int) or isWhiteSpace(int, boolean) for a list of whitespace characters.
    
    Parameters:
    
    input - byte[]
    
    isNullWhitespace - boolean to indicate whether '0' is whitespace or not. If in doubt, use true or overloaded method readLineSegment(input)
    
    Returns:
    
    boolean
    
    Throws:
    
    IOException
    
    Since:
    
    5.5.1
  - checkObjectStart
```
public static long[] checkObjectStart(byte[] line)
```
  - isHexString
```
public boolean isHexString()
```

Class PRTokeniser

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

delims

type

stringValue

reference

generation

hexString

Constructor Detail

PRTokeniser

Method Detail

seek

getFilePointer

close

length

read

getSafeFile

getFile

readString

isWhitespace

isWhitespace

isDelimiter

isDelimiterWhitespace

getTokenType

getStringValue

getReference

getGeneration

backOnePosition

throwError

getHeaderOffset

checkPdfHeader

checkFdfHeader

getStartxref

getHex

nextValidToken

nextToken

longValue

intValue

readLineSegment

readLineSegment

checkObjectStart

isHexString