Package org.verapdf.parser.postscript

Class PSProcedure

java.lang.Object

org.verapdf.cos.COSObject

org.verapdf.parser.postscript.PSObject

org.verapdf.parser.postscript.PSProcedure

public class PSProcedure
extends PSObject

Class represents PostScript procedure. Notice that when it is read from PostScript program it is pushed to operand stack for later invocation.

Author:

Sergey Shemyakov

Constructor Summary

Constructors

Constructor	Description
PSProcedure(COSArray procedure)

Method Summary

Modifier and Type	Method	Description
void	execute(Stack<COSObject> operandStack, Map<ASAtom,COSObject> userDict)	Executes PostScript object.
void	executeProcedure(Stack<COSObject> operandStack, Map<ASAtom,COSObject> userDict)
Stack<COSObject>	modifiedExecuteProcedure(Stack<COSObject> operandStack, Map<ASAtom,COSObject> userDict)

Methods inherited from class org.verapdf.parser.postscript.PSObject

getPSObject, getPSObject

Methods inherited from class org.verapdf.cos.COSObject

accept, add, assign, at, clear, clearArray, empty, equals, get, getBoolean, getBooleanKey, getData, getData, getDirect, getDirectBase, getDocument, getEmpty, getInteger, getIntegerKey, getKey, getKey, getKeySet, getName, getNameKey, getObjectKey, getReal, getRealKey, getRealStreamSize, getString, getStringKey, getType, getValues, insert, isEndOfObjectComplyPDFA, isEndstreamKeywordCRLFCompliant, isHeaderFormatComplyPDFA, isHeaderOfObjectComplyPDFA, isIndirect, isStreamKeywordCRLFCompliant, knownKey, mark, remove, removeKey, set, set, setArray, setArray, setArray, setArrayKey, setArrayKey, setArrayKey, setArrayKey, setBoolean, setBooleanKey, setData, setData, setDirect, setEndstreamKeywordCRLFCompliant, setInteger, setIntegerKey, setIsEndOfObjectComplyPDFA, setIsHeaderFormatComplyPDFA, setIsHeaderOfObjectComplyPDFA, setKey, setKey, setName, setNameKey, setObjectKey, setReal, setRealKey, setRealStreamSize, setStreamKeywordCRLFCompliant, setString, setString, setStringKey, size, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

PSProcedure

public PSProcedure(COSArray procedure)

Method Detail

executeProcedure

public void executeProcedure(Stack<COSObject> operandStack,
                             Map<ASAtom,COSObject> userDict)
                      throws PostScriptException

Throws:

PostScriptException

execute

public void execute(Stack<COSObject> operandStack,
                    Map<ASAtom,COSObject> userDict)

Description copied from class: PSObject

Executes PostScript object. For literal objects this execution means pushing object to operand stack, for operator and procedure objects execution mean execution of this operator or procedure.

Specified by:

execute in class PSObject

Parameters:

operandStack - is stack for PostScript operands (see PostScript specification for further information).

userDict - is a dictionary that stores all key-value associated pair encountered during PostScript parsing. Full PostScript parser needs a dict stack, our implementation has only one dictionary.

modifiedExecuteProcedure

public Stack<COSObject> modifiedExecuteProcedure(Stack<COSObject> operandStack,
                                                 Map<ASAtom,COSObject> userDict)
                                          throws PostScriptException

Throws:

PostScriptException