Inheritance diagram for iText.IO.Source.PdfTokenizer:

Classes
class	ReusableRandomAccessSource

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 RandomAccessFileOrArrayThe 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 More...

virtual void Seek (long pos)

Exceptions

System.IO.IOException

virtual void ReadFully (byte[] bytes)

Exceptions

System.IO.IOException

virtual long GetPosition ()

Exceptions

System.IO.IOException

virtual void Close ()

Exceptions

System.IO.IOException

virtual long Length ()

Exceptions

System.IO.IOException

virtual int Read ()

Exceptions

System.IO.IOException

virtual String ReadString (int size)

Exceptions

System.IO.IOException

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 ()

Exceptions

System.IO.IOException

virtual String CheckPdfHeader ()

Exceptions

System.IO.IOException

virtual void CheckFdfHeader ()

Exceptions

System.IO.IOException

virtual long GetStartxref ()

Exceptions

System.IO.IOException

virtual void NextValidToken ()

Exceptions

System.IO.IOException

virtual bool NextToken ()

Exceptions

System.IO.IOException

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 (iText.IO.Source.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 RandomAccessFileOrArrayThe 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 ( iText.IO.Source.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 tio '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

Parameters

hexWriting

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

ByteBuffer

Returns: boolean

Exceptions

System.IO.IOException

◆ 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

ByteBuffer

Parameters

isNullWhitespace boolean to indicate whether '0' is whitespace or not. If in doubt, use true or overloaded method readLineSegment(input)

Returns: boolean

Exceptions

System.IO.IOException

◆ 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.

Exceptions

iText.IO.IOException wrap error message into PdfRuntimeException and add position in file.

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 }

Classes

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