org.extex.unit.tex.register.count
Class AbstractCount

java.lang.Object
  org.extex.interpreter.type.AbstractCode
      org.extex.interpreter.type.AbstractAssignment
          org.extex.unit.tex.register.count.AbstractCount

All Implemented Interfaces:

java.io.Serializable, Code, InitializableCode

Direct Known Subclasses:

Countdef, CountPrimitive, Mag

public abstract class AbstractCount
extends AbstractAssignment
implements InitializableCode

This abstract base class provides the methods to compute the keys for numbered count registers.

Version:

$Revision: 4770 $

Author:

Gerd Neugebauer

See Also:

Serialized Form

Constructor Summary

AbstractCount(CodeToken token)
Creates a new object.

Method Summary

protected java.lang.String	getKey(Context context, TokenSource source, Typesetter typesetter) Return the key (the name of the primitive) for the numbered count register.
void	init(Context context, TokenSource source, Typesetter typesetter) Initialize the Code with some value coming from a String.

Methods inherited from class org.extex.interpreter.type.AbstractAssignment

assign, execute

Methods inherited from class org.extex.interpreter.type.AbstractCode

getLocalizer, getName, getToken, isIf, isOuter, readResolve, toString, toText, toText

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractCount

public AbstractCount(CodeToken token)

Creates a new object.

Parameters:

token - the initial token for the primitive

Method Detail

getKey

protected java.lang.String getKey(Context context,
                                  TokenSource source,
                                  Typesetter typesetter)
                           throws HelpingException,
                                  TypesetterException

Return the key (the name of the primitive) for the numbered count register.

Parameters:

context - the interpreter context to use

source - the source for new tokens

typesetter - the typesetter

Returns:

the key for the current register

Throws:

HelpingException - in case that a derived class need to throw an Exception this one is declared.

TypesetterException - in case of an error in the typesetter

init

public void init(Context context,
                 TokenSource source,
                 Typesetter typesetter)
          throws HelpingException,
                 TypesetterException

Initialize the Code with some value coming from a String.

Specified by:

init in interface InitializableCode

Parameters:

context - the interpreter context

source - the source of information for the initialization

typesetter - the typesetter

Throws:

HelpingException - in case of an error

TypesetterException - in case of an error in the typesetter

See Also:

InitializableCode.init( org.extex.interpreter.context.Context, org.extex.interpreter.TokenSource, org.extex.typesetter.Typesetter)