org.verapdf.parser

Class NotSeekableBaseParser

java.lang.Object

org.verapdf.parser.NotSeekableBaseParser

All Implemented Interfaces:

Closeable, AutoCloseable

Direct Known Subclasses:

NotSeekableCOSParser, Type3CharProcParser

public class NotSeekableBaseParser
extends Object
implements Closeable

Base PDF parser that operates with a buffered stream. The seek() operation of stream is not required.

Author:

Sergey Shemyakov

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	isPSParser
protected ASBufferedInFilter	source

Constructor Summary

Constructors

Constructor and Description
NotSeekableBaseParser(ASInputStream stream) Constructor from stream.
NotSeekableBaseParser(ASInputStream fileStream, boolean isPSParser)

Method Summary

Modifier and Type	Method and Description
void	close() Closes source stream.
static byte[]	extendArray(byte[] array)
protected boolean	findKeyword(Token.Keyword keyword)
protected boolean	findKeyword(Token.Keyword keyword, int lookUpSize)
protected byte[]	getLineBytes()
protected Token	getToken()
protected void	initializeToken()
protected static boolean	isCR(int c)
protected boolean	isDigit()
protected static boolean	isDigit(byte c)
protected boolean	isEndOfComment(byte ch)
protected static boolean	isFF(int c)
protected static boolean	isLF(int c)
protected void	nextToken()
protected void	readLine()
protected void	readNumber()
protected String	readUntilDelimiter()
protected void	skipSpaces()
protected void	skipSpaces(boolean skipComment)
protected void	skipStreamSpaces()

Methods inherited from class java.lang.Object

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

Field Detail

isPSParser

protected boolean isPSParser

source

protected ASBufferedInFilter source

Constructor Detail

NotSeekableBaseParser

public NotSeekableBaseParser(ASInputStream stream)
                      throws IOException

Constructor from stream. New buffered stream from given stream is created.

Parameters:

stream - is source data stream.

Throws:

IOException

NotSeekableBaseParser

public NotSeekableBaseParser(ASInputStream fileStream,
                             boolean isPSParser)
                      throws IOException

Throws:

IOException

Method Detail

close

public void close()
           throws IOException

Closes source stream.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException

initializeToken

protected void initializeToken()

getToken

protected Token getToken()

readLine

protected void readLine()
                 throws IOException

Throws:

IOException

getLineBytes

protected byte[] getLineBytes()
                       throws IOException

Throws:

IOException

readUntilDelimiter

protected String readUntilDelimiter()
                             throws IOException

Throws:

IOException

findKeyword

protected boolean findKeyword(Token.Keyword keyword)
                       throws IOException

Throws:

IOException

findKeyword

protected boolean findKeyword(Token.Keyword keyword,
                              int lookUpSize)
                       throws IOException

Throws:

IOException

nextToken

protected void nextToken()
                  throws IOException

Throws:

IOException

skipSpaces

protected void skipSpaces()
                   throws IOException

Throws:

IOException

skipSpaces

protected void skipSpaces(boolean skipComment)
                   throws IOException

Throws:

IOException

skipStreamSpaces

protected void skipStreamSpaces()
                         throws IOException

Throws:

IOException

isDigit

protected boolean isDigit()
                   throws IOException

Throws:

IOException

isDigit

protected static boolean isDigit(byte c)

isEndOfComment

protected boolean isEndOfComment(byte ch)

isFF

protected static boolean isFF(int c)

isLF

protected static boolean isLF(int c)

isCR

protected static boolean isCR(int c)

extendArray

public static byte[] extendArray(byte[] array)

readNumber

protected void readNumber()
                   throws IOException

Throws:

IOException