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Java Source Code / Java Documentation » PDF » PDFClown 0.0.5 » it.stefanochizzolini.clown.tokens 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   it.stefanochizzolini.clown.tokens.Parser

Parser
public class Parser (Code)
Token parser.

Contract

  • Preconditions:
    1. (none).
  • Postconditions:
    1. (none).
  • Invariants:
    1. Stream data IS kept untouched.
  • Side-effects:
    1. (none).

Inner Class :public class Reference


Constructor Summary
 Parser(IInputStream stream, File file)
    

Method Summary
public  longgetLength()
    
public  longgetPosition()
    
public  IInputStreamgetStream()
    
public  ObjectgetToken()
     Gets the currently-parsed token.
public  TokenTypeEnumgetTokenType()
     Gets the currently-parsed token type.
public  inthashCode()
    
protected static  booleanisDelimiter(int c)
     Evaluates whether a character is a delimiter [PDF:1.6:3.1.1].
protected static  booleanisEOL(int c)
     Evaluates whether a character is an EOL marker [PDF:1.6:3.1.1].
protected static  booleanisWhitespace(int c)
     Evaluates whether a character is a white-space [PDF:1.6:3.1.1].
public  booleanmoveNext(int offset)
    
public  booleanmoveNext()
     Parse the next token [PDF:1.6:3.1].
public  PdfDataObjectparsePdfObject()
     Parse the current PDF object [PDF:1.6:3.2].
public  StringretrieveVersion()
     Retrieves the PDF version of the file [PDF:1.6:3.4.1].
public  longretrieveXRefOffset()
     Retrieves the starting position of the last xref-table section.
public  longretrieveXRefOffset(long offset)
     Retrieves the starting position of an xref-table section [PDF:1.6:3.4.4].
public  voidseek(long position)
    
public  voidskip(long offset)
    
public  booleanskipWhitespace()
     Moves to the last whitespace after the current position in order to let read the first non-whitespace.


Constructor Detail
Parser
Parser(IInputStream stream, File file)(Code)




Method Detail
getLength
public long getLength()(Code)



getPosition
public long getPosition()(Code)



getStream
public IInputStream getStream()(Code)



getToken
public Object getToken()(Code)
Gets the currently-parsed token. The current token.



getTokenType
public TokenTypeEnum getTokenType()(Code)
Gets the currently-parsed token type. The current token type.



hashCode
public int hashCode()(Code)



isDelimiter
protected static boolean isDelimiter(int c)(Code)
Evaluates whether a character is a delimiter [PDF:1.6:3.1.1].



isEOL
protected static boolean isEOL(int c)(Code)
Evaluates whether a character is an EOL marker [PDF:1.6:3.1.1].



isWhitespace
protected static boolean isWhitespace(int c)(Code)
Evaluates whether a character is a white-space [PDF:1.6:3.1.1].



moveNext
public boolean moveNext(int offset) throws FileFormatException(Code)

Parameters:
  offset - Number of tokens to be skipped before reaching the intended one.



moveNext
public boolean moveNext() throws FileFormatException(Code)
Parse the next token [PDF:1.6:3.1].

Contract

  • Preconditions:
    1. To properly parse the current token, the pointer MUST be just before its starting (leading whitespaces are ignored).
  • Postconditions:
    1. When this method terminates, the pointer IS at the last byte of the current token.
  • Invariants:
    1. The byte-level position of the pointer IS anytime (during token parsing) at the end of the current token (whereas the 'current token' represents the token-level position of the pointer).
  • Side-effects:
    1. See Postconditions.
Whether a new token was found.



parsePdfObject
public PdfDataObject parsePdfObject() throws FileFormatException(Code)
Parse the current PDF object [PDF:1.6:3.2].

Contract

  • Preconditions:
    1. When this method is invoked, the pointer MUST be at the first token of the requested object.
  • Postconditions:
    1. When this method terminates, the pointer IS at the last token of the requested object.
  • Invariants:
    1. (none).
  • Side-effects:
    1. See Postconditions.



retrieveVersion
public String retrieveVersion() throws FileFormatException(Code)
Retrieves the PDF version of the file [PDF:1.6:3.4.1].

Contract

  • Preconditions:
    1. (none).
  • Postconditions:
    1. (none).
  • Invariants:
    1. (none).
  • Side-effects:
    1. The pointer is released at an undefined location.



retrieveXRefOffset
public long retrieveXRefOffset() throws FileFormatException(Code)
Retrieves the starting position of the last xref-table section.
See Also:    retrieveXRefOffset(long)



retrieveXRefOffset
public long retrieveXRefOffset(long offset) throws FileFormatException(Code)
Retrieves the starting position of an xref-table section [PDF:1.6:3.4.4].

Contract

  • Preconditions:
    1. (none).
  • Postconditions:
    1. (none).
  • Invariants:
    1. (none).
  • Side-effects:
    1. The pointer is released at an undefined location.

Parameters:
  offset - Position of the EOF marker related to the section intended to be parsed.



seek
public void seek(long position)(Code)



skip
public void skip(long offset)(Code)



skipWhitespace
public boolean skipWhitespace()(Code)
Moves to the last whitespace after the current position in order to let read the first non-whitespace.



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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