Inheritance diagram for iText.IO.Source.PdfTokenizer:

Public Types
enum	TokenType { Number, String, Name, Comment, StartArray, EndArray, StartDic, EndDic, Ref, Obj, EndObj, Other, EndOfFile }

Public Member Functions
	PdfTokenizer (RandomAccessFileOrArray file)
	Creates a PdfTokenizer for the specified RandomAccessFileOrArray. More...

virtual void	Seek (long pos)

virtual void	ReadFully (byte[] bytes)

virtual long	GetPosition ()

virtual void	Close ()

virtual long	Length ()

virtual int	Read ()

virtual String	ReadString (int size)

virtual PdfTokenizer.TokenType	GetTokenType ()

virtual byte[]	GetByteContent ()

virtual String	GetStringValue ()

virtual byte[]	GetDecodedStringContent ()

virtual bool	TokenValueEqualsTo (byte[] cmp)

virtual int	GetObjNr ()

virtual int	GetGenNr ()

virtual void	BackOnePosition (int ch)

virtual int	GetHeaderOffset ()

virtual String	CheckPdfHeader ()

virtual void	CheckFdfHeader ()

virtual long	GetStartxref ()

virtual void	NextValidToken ()

virtual bool	NextToken ()

virtual long	GetLongValue ()

virtual int	GetIntValue ()

virtual bool	IsHexString ()

virtual bool	IsCloseStream ()

virtual void	SetCloseStream (bool closeStream)

virtual RandomAccessFileOrArray	GetSafeFile ()

virtual void	ThrowError (String error, params Object[] messageParams)
	Helper method to handle content errors. More...

virtual bool	ReadLineSegment (ByteBuffer buffer)
	Reads data into the provided byte[]. More...

virtual bool	ReadLineSegment (ByteBuffer buffer, bool isNullWhitespace)
	Reads data into the provided byte[]. More...

Static Public Member Functions
static byte[]	DecodeStringContent (byte[] content, bool hexWriting)
	Resolve escape symbols or hexadecimal symbols. More...

static bool	IsWhitespace (int ch)
	Is a certain character a whitespace? Currently checks on the following: '0', '9', '10', '12', '13', '32'. More...

static bool	CheckTrailer (ByteBuffer line)
	Checks whether line equals to 'trailer'. More...

static int[]	CheckObjectStart (PdfTokenizer lineTokenizer)
	Check whether line starts with object declaration. More...

Static Public Attributes
static readonly bool[]	delims

static readonly byte[]	Obj = ByteUtils.GetIsoBytes("obj")

static readonly byte[]	R = ByteUtils.GetIsoBytes("R")

static readonly byte[]	Xref = ByteUtils.GetIsoBytes("xref")

static readonly byte[]	Startxref = ByteUtils.GetIsoBytes("startxref")

static readonly byte[]	Stream = ByteUtils.GetIsoBytes("stream")

static readonly byte[]	Trailer = ByteUtils.GetIsoBytes("trailer")

static readonly byte[]	N = ByteUtils.GetIsoBytes("n")

static readonly byte[]	F = ByteUtils.GetIsoBytes("f")

static readonly byte[]	Null = ByteUtils.GetIsoBytes("null")

static readonly byte[]	True = ByteUtils.GetIsoBytes("true")

static readonly byte[]	False = ByteUtils.GetIsoBytes("false")

Constructor & Destructor Documentation

◆ PdfTokenizer()

iText.IO.Source.PdfTokenizer.PdfTokenizer ( RandomAccessFileOrArray file )

inline

Creates a PdfTokenizer for the specified RandomAccessFileOrArray.

Creates a PdfTokenizer 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

Member Function Documentation

◆ CheckObjectStart()

static int [] iText.IO.Source.PdfTokenizer.CheckObjectStart ( PdfTokenizer lineTokenizer )

inlinestatic

Check whether line starts with object declaration.

Parameters

lineTokenizer tokenizer, built by single line.

Returns: object number and generation if check is successful, otherwise - null.

◆ CheckTrailer()

static bool iText.IO.Source.PdfTokenizer.CheckTrailer ( ByteBuffer line )

inlinestatic

Checks whether line equals to 'trailer'.

Parameters

line for check

Returns: true, if line is equals to 'trailer', otherwise false

◆ DecodeStringContent()

static byte [] iText.IO.Source.PdfTokenizer.DecodeStringContent	(	byte[]	content,
		bool	hexWriting
	)

inlinestatic

Resolve escape symbols or hexadecimal symbols.

Resolve escape symbols or hexadecimal symbols.
NOTE Due to PdfReference 1.7 part 3.2.3 String value contain ASCII characters, so we can convert it directly to byte array.

Parameters

content	string bytes to be decoded
hexWriting	true if given string is hex-encoded, e.g. '<69546578…>'. False otherwise, e.g. '((iText( some version)…)'

Returns: byte[] for decrypting or for creating System.String.

◆ IsWhitespace()

static bool iText.IO.Source.PdfTokenizer.IsWhitespace ( int ch )

inlinestatic

Is a certain character a whitespace? Currently checks on the following: '0', '9', '10', '12', '13', '32'.

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

◆ ReadLineSegment() [1/2]

virtual bool iText.IO.Source.PdfTokenizer.ReadLineSegment ( ByteBuffer buffer )

inlinevirtual

Reads data into the provided byte[].

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

buffer a ByteBuffer to which the result of reading will be saved

Returns: true, if something was read or if the end of the input stream is not reached

◆ ReadLineSegment() [2/2]

virtual bool iText.IO.Source.PdfTokenizer.ReadLineSegment	(	ByteBuffer	buffer,
		bool	isNullWhitespace
	)

inlinevirtual

Reads data into the provided byte[].

Reads data into the provided byte[]. Checks on leading whitespace. See isWhiteSpace(int) or isWhiteSpace(int, boolean) for a list of whitespace characters.

Parameters

buffer	a ByteBuffer to which the result of reading will be saved
isNullWhitespace	boolean to indicate whether '0' is whitespace or not. If in doubt, use true or overloaded method readLineSegment(input)

Returns: true, if something was read or if the end of the input stream is not reached

◆ ThrowError()

virtual void iText.IO.Source.PdfTokenizer.ThrowError	(	String	error,
		params Object[]	messageParams
	)

inlinevirtual

Helper method to handle content errors.

Helper method to handle content errors. Add file position to PdfRuntimeException.

Parameters

error	message.
messageParams	error params.

Member Data Documentation

◆ delims

readonly bool [] iText.IO.Source.PdfTokenizer.delims

static

Initial value:

         = new bool[] { true, true, false, false, false, false, false, false, 
       
 false, false, true, true, false, true, true, false, false, false, false, false, false, false, false, false 
       
         , false, false, false, false, false, false, false, false, false, true, false, false, false, false, true 
       
         , false, false, true, true, false, false, false, false, false, true, false, false, false, false, false 
       
         , false, false, false, false, false, false, false, true, false, true, false, false, false, false, false 
       
         , false, false, false, false, false, false, false, false, false, false, false, false, false, false, false 
       
         , false, false, false, false, false, false, false, false, true, false, true, false, false, false, false 
       
         , false, false, false, false, false, false, false, false, false, false, false, false, false, false, false 
       
         , false, false, false, false, false, false, false, false, false, false, false, false, false, false, false 
       
         , false, false, false, false, false, false, false, false, false, false, false, false, false, false, false 
       
         , false, false, false, false, false, false, false, false, false, false, false, false, false, false, false 
       
         , false, false, false, false, false, false, false, false, false, false, false, false, false, false, false 
       
         , false, false, false, false, false, false, false, false, false, false, false, false, false, false, false 
       
         , false, false, false, false, false, false, false, false, false, false, false, false, false, false, false 
       
         , false, false, false, false, false, false, false, false, false, false, false, false, false, false, false 
       
         , false, false, false, false, false, false, false, false, false, false, false, false, false, false, false 
       
         , false, false, false, false, false, false, false, false, false, false, false, false, false, false, false 
       
         , false, false, false, false, false, false, false, false }

Public Types

Public Member Functions

Static Public Member Functions

Static Public Attributes

Constructor & Destructor Documentation

◆ PdfTokenizer()

Member Function Documentation

◆ CheckObjectStart()

◆ CheckTrailer()

◆ DecodeStringContent()

◆ IsWhitespace()

◆ ReadLineSegment() [1/2]

◆ ReadLineSegment() [2/2]

◆ ThrowError()

Member Data Documentation

◆ delims