MCParser (iText 5.5.10 API)

java.lang.Object
- com.itextpdf.text.pdf.mc.MCParser

```
public class MCParser
extends Object
```
This class will parse page content streams and add Do operators in a marked-content sequence for every field that needs to be flattened.

Nested Class Summary

Nested Classes
Modifier and Type	Class and Description
`static interface`	`MCParser.PdfOperator` PDF Operator interface.

Field Summary

Fields
Modifier and Type	Field and Description
`protected PdfArray`	`annots` the annotations of the page that is being processed.
`protected ByteArrayOutputStream`	`baos` The contents of the new content stream of the page.
`protected boolean`	`btWrite` Did we postpone writing a BT operator?
`static String`	`DEFAULTOPERATOR` Constant used for the default operator.
`protected boolean`	`etExtra` Did we postpone writing a BT operator?
`protected boolean`	`inText` Are we inside a BT/ET sequence?
`protected StructureItems`	`items` The list with structure items.
`protected static Logger`	`LOGGER` The Logger instance
`protected Map<String,MCParser.PdfOperator>`	`operators` A map with all supported operators operators (PDF syntax).
`protected PdfDictionary`	`page` The page dictionary
`protected PdfIndirectReference`	`pageref` The reference to the page dictionary
`protected static RandomAccessSourceFactory`	`RASFACTORY` Factory that will help us build a RandomAccessSource.
`protected PdfNumber`	`structParents` the StructParents of the page that is being processed.
`protected StringBuffer`	`text` A buffer containing text state.
`static PdfLiteral`	`TSTAR` A new line operator
`protected PdfDictionary`	`xobjects` the XObject dictionary of the page that is being processed.

Constructor Summary

Constructors
Constructor and Description
`MCParser(StructureItems items)` Creates an MCParser object.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`protected void`	`checkBT()` Checks if a BT operator is waiting to be added.
`protected void`	`convertToXObject(StructureObject item)` Converts an annotation structure item to a Form XObject annotation.
`protected void`	`dealWithMcid(PdfNumber mcid)` When an MCID is encountered, the parser will check the list structure items and turn an annotation into an XObject if necessary.
`protected void`	`dealWithXObj(PdfName xobj)` When an XObject with a StructParent is encountered, we want to remove it from the stack.
`void`	`parse(PdfDictionary page, PdfIndirectReference pageref)` Parses the content of a page, inserting the normal (/N) appearances (/AP) of annotations into the content stream as Form XObjects.
`protected void`	`populateOperators()` Populates the operators variable.
`protected void`	`println(PdfObject o)` Writes a PDF object to the OutputStream, followed by a newline character.
`protected void`	`printOperator(PdfLiteral operator, List<PdfObject> operands)` Adds an operator and its operands (if any) to baos.
`protected void`	`printsp(PdfObject o)` Writes a PDF object to the OutputStream, followed by a space character.
`protected void`	`printTextOperator(PdfLiteral operator, List<PdfObject> operands)` Adds an operator and its operands (if any) to baos, keeping track of the text state.
`protected void`	`processOperator(PdfLiteral operator, List<PdfObject> operands)` Processes an operator, for instance: write the operator and its operands to baos.
`protected void`	`setInText(boolean inText)` Informs the parser that we're inside or outside a text object.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - LOGGER
```
protected static final Logger LOGGER
```
    The Logger instance
  - RASFACTORY
```
protected static final RandomAccessSourceFactory RASFACTORY
```
    Factory that will help us build a RandomAccessSource.
  - DEFAULTOPERATOR
```
public static final String DEFAULTOPERATOR
```
    Constant used for the default operator.
    
    See Also:
    
    Constant Field Values
  - TSTAR
```
public static final PdfLiteral TSTAR
```
    A new line operator
  - operators
```
protected Map<String,MCParser.PdfOperator> operators
```
    A map with all supported operators operators (PDF syntax).
  - items
```
protected StructureItems items
```
    The list with structure items.
  - baos
```
protected ByteArrayOutputStream baos
```
    The contents of the new content stream of the page.
  - page
```
protected PdfDictionary page
```
    The page dictionary
  - pageref
```
protected PdfIndirectReference pageref
```
    The reference to the page dictionary
  - annots
```
protected PdfArray annots
```
    the annotations of the page that is being processed.
  - structParents
```
protected PdfNumber structParents
```
    the StructParents of the page that is being processed.
  - xobjects
```
protected PdfDictionary xobjects
```
    the XObject dictionary of the page that is being processed.
  - btWrite
```
protected boolean btWrite
```
    Did we postpone writing a BT operator?
  - etExtra
```
protected boolean etExtra
```
    Did we postpone writing a BT operator?
  - inText
```
protected boolean inText
```
    Are we inside a BT/ET sequence?
  - text
```
protected StringBuffer text
```
    A buffer containing text state.
- Constructor Detail
  - MCParser
```
public MCParser(StructureItems items)
```
    Creates an MCParser object.
    
    Parameters:
    
    items - a list of StructureItem objects
- Method Detail
  - populateOperators
```
protected void populateOperators()
```
    Populates the operators variable.
  - parse
```
public void parse(PdfDictionary page,
                  PdfIndirectReference pageref)
           throws IOException,
                  DocumentException
```
    Parses the content of a page, inserting the normal (/N) appearances (/AP) of annotations into the content stream as Form XObjects.
    
    Parameters:
    
    page - a page dictionary
    
    pageref - the reference to the page dictionary
    
    finalPage - indicates whether the page being processed is the final page in the document
    
    Throws:
    
    IOException
    
    DocumentException
  - dealWithXObj
```
protected void dealWithXObj(PdfName xobj)
```
    When an XObject with a StructParent is encountered, we want to remove it from the stack.
    
    Parameters:
    
    xobj - the name of an XObject
  - dealWithMcid
```
protected void dealWithMcid(PdfNumber mcid)
                     throws IOException,
                            DocumentException
```
    When an MCID is encountered, the parser will check the list structure items and turn an annotation into an XObject if necessary.
    
    Parameters:
    
    mcid - the MCID that was encountered in the content stream
    
    Throws:
    
    IOException
    
    DocumentException
  - convertToXObject
```
protected void convertToXObject(StructureObject item)
                         throws IOException,
                                DocumentException
```
    Converts an annotation structure item to a Form XObject annotation.
    
    Parameters:
    
    item - the structure item
    
    Throws:
    
    IOException
    
    DocumentException
  - processOperator
```
protected void processOperator(PdfLiteral operator,
                               List<PdfObject> operands)
                        throws IOException,
                               DocumentException
```
    Processes an operator, for instance: write the operator and its operands to baos.
    
    Parameters:
    
    operator - the operator
    
    operands - the operator's operands
    
    Throws:
    
    IOException
    
    DocumentException
  - printOperator
```
protected void printOperator(PdfLiteral operator,
                             List<PdfObject> operands)
                      throws IOException
```
    Adds an operator and its operands (if any) to baos.
    
    Parameters:
    
    operator - the operator
    
    operands - its operands
    
    Throws:
    
    IOException
  - printTextOperator
```
protected void printTextOperator(PdfLiteral operator,
                                 List<PdfObject> operands)
                          throws IOException
```
    Adds an operator and its operands (if any) to baos, keeping track of the text state.
    
    Parameters:
    
    operator - the operator
    
    operands - its operands
    
    Throws:
    
    IOException
  - printsp
```
protected void printsp(PdfObject o)
                throws IOException
```
    Writes a PDF object to the OutputStream, followed by a space character.
    
    Parameters:
    
    o - a PdfObject
    
    Throws:
    
    IOException
  - println
```
protected void println(PdfObject o)
                throws IOException
```
    Writes a PDF object to the OutputStream, followed by a newline character.
    
    Parameters:
    
    o - a PdfObject
    
    Throws:
    
    IOException
  - checkBT
```
protected void checkBT()
                throws IOException
```
    Checks if a BT operator is waiting to be added.
    
    Throws:
    
    IOException
  - setInText
```
protected void setInText(boolean inText)
```
    Informs the parser that we're inside or outside a text object. Also sets a parameter indicating that BT needs to be written.
    
    Parameters:
    
    inText - true if we're inside.

Class MCParser

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

LOGGER

RASFACTORY

DEFAULTOPERATOR

TSTAR

operators

items

baos

page

pageref

annots

structParents

xobjects

btWrite

etExtra

inText

text

Constructor Detail

MCParser

Method Detail

populateOperators

parse

dealWithXObj

dealWithMcid

convertToXObject

processOperator

printOperator

printTextOperator

printsp

println

checkBT

setInText