org.icepdf.core.util
Class Parser

java.lang.Object
  org.icepdf.core.util.Parser

public class Parser
extends java.lang.Object

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Field Summary

static int	PARSE_MODE_NORMAL
static int	PARSE_MODE_OBJECT_STREAM

Constructor Summary

Parser(java.io.InputStream r)

Parser(java.io.InputStream r, int pm)

Parser(SeekableInput r)

Parser(SeekableInput r, int pm)

Method Summary

PObject	addPObject(Library library, Reference objectReference) Utility Method for getting a PObject from the stack and adding it to the library.
char	getCharSurroundedByWhitespace()
int	getIntSurroundedByWhitespace()
long	getLongSurroundedByWhitespace()
java.lang.Object	getNumberOrStringWithMark(int maxLength)
java.lang.Object	getObject(Library library) Get an object from the pdf input DataInputStream.
java.lang.Object	getStreamObject() Returns the next object found in a content stream.
java.lang.Object	getToken() Utility method used to parse a valid pdf token from an DataIinputStream.
static boolean	isWhitespace(char c) White space characters defined by ' ', '\t', '\r', '\n', '\f'
void	ungetNumberOrStringWithReset()

Methods inherited from class java.lang.Object

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

Field Detail

PARSE_MODE_NORMAL

public static final int PARSE_MODE_NORMAL

See Also:

Constant Field Values

PARSE_MODE_OBJECT_STREAM

public static final int PARSE_MODE_OBJECT_STREAM

See Also:

Constant Field Values

Constructor Detail

Parser

public Parser(SeekableInput r)

Parser

public Parser(SeekableInput r,
              int pm)

Parser

public Parser(java.io.InputStream r)

Parser

public Parser(java.io.InputStream r,
              int pm)

Method Detail

getObject

public java.lang.Object getObject(Library library)
                           throws PDFException

Get an object from the pdf input DataInputStream.

Parameters:

library - all found objects in the pdf document

Returns:

the next object in the DataInputStream. Null is returned if there are no more objects left in the DataInputStream or a I/O error is encountered.

Throws:

PDFException - error getting object from library

addPObject

public PObject addPObject(Library library,
                          Reference objectReference)

Utility Method for getting a PObject from the stack and adding it to the library. The retrieved PObject has an ObjectReference added to it for decryption purposes.

Parameters:

library - hashtable of all objects in document

objectReference - PObjet indirect reference data

Returns:

a valid PObject.

getStreamObject

public java.lang.Object getStreamObject()
                                 throws java.io.IOException

Returns the next object found in a content stream.

Returns:

next object in the input stream

Throws:

java.io.IOException - when the end of the InputStream has been encountered.

getToken

public java.lang.Object getToken()
                          throws java.io.IOException

Utility method used to parse a valid pdf token from an DataIinputStream. Each call to this method return one pdf token. The Reader object is used to "mark" the location of the last "read".

Returns:

the next token in the pdf data stream

Throws:

java.io.IOException - if an I/O error occurs.

getNumberOrStringWithMark

public java.lang.Object getNumberOrStringWithMark(int maxLength)
                                           throws java.io.IOException

Throws:

java.io.IOException

ungetNumberOrStringWithReset

public void ungetNumberOrStringWithReset()
                                  throws java.io.IOException

Throws:

java.io.IOException

getIntSurroundedByWhitespace

public int getIntSurroundedByWhitespace()

getLongSurroundedByWhitespace

public long getLongSurroundedByWhitespace()

getCharSurroundedByWhitespace

public char getCharSurroundedByWhitespace()

isWhitespace

public static final boolean isWhitespace(char c)

White space characters defined by ' ', '\t', '\r', '\n', '\f'

Parameters:

c -