edu.harvard.hul.ois.jhove.module.pdf

Class StreamTokenizer

java.lang.Object

edu.harvard.hul.ois.jhove.module.pdf.Tokenizer

edu.harvard.hul.ois.jhove.module.pdf.StreamTokenizer

public class StreamTokenizer
extends Tokenizer

Tokenizer subclass which gets data from an object stream.

Author:

Gary McGath

Field Summary

Fields inherited from class edu.harvard.hul.ois.jhove.module.pdf.Tokenizer

_ch, _file, PDFDOCENCODING

Constructor Summary

Constructors

Constructor and Description
StreamTokenizer(RandomAccessFile file, Stream stream)

Method Summary

Modifier and Type	Method and Description
void	backupChar() Back up a byte so it will be read again.
protected void	initStream(Stream token) Streams can occur only in files, not in streams, so this should never be called.
int	readChar() Gets a character from the file, using a buffer.
void	seek(long offset) Set the Tokenizer to a new position in the stream.
protected void	setStreamOffset(Stream token) Sets the offset of a Stream to the current file position.

Methods inherited from class edu.harvard.hul.ois.jhove.module.pdf.Tokenizer

addLanguageCode, getLanguageCodes, getNext, getNext, getOffset, getPDFACompliant, getWSString, readChar1, scanMode, seekReset, setEncrypted, setPDFACompliant

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StreamTokenizer

public StreamTokenizer(RandomAccessFile file,
                       Stream stream)

Method Detail

initStream

protected void initStream(Stream token)
                   throws IOException,
                          PdfException

Streams can occur only in files, not in streams, so this should never be called.

Specified by:

initStream in class Tokenizer

Throws:

IOException

PdfException

readChar

public int readChar()
             throws IOException

Gets a character from the file, using a buffer.

Specified by:

readChar in class Tokenizer

Throws:

IOException

seek

public void seek(long offset)
          throws IOException,
                 PdfException

Set the Tokenizer to a new position in the stream.

Specified by:

seek in class Tokenizer

Parameters:

offset - The offset in bytes from the start of the stream.

Throws:

IOException

PdfException

setStreamOffset

protected void setStreamOffset(Stream token)
                        throws IOException,
                               PdfException

Sets the offset of a Stream to the current file position. Only the file-based tokenizer can do this, so this should never be called.

Specified by:

setStreamOffset in class Tokenizer

Throws:

IOException

PdfException

backupChar

public void backupChar()

Back up a byte so it will be read again.

Specified by:

backupChar in class Tokenizer