org.extex.unit.omega.dir
Class AbstractDirCode

java.lang.Object
  org.extex.interpreter.type.AbstractCode
      org.extex.unit.omega.dir.AbstractDirCode

All Implemented Interfaces:

java.io.Serializable, Code

Direct Known Subclasses:

Mathdir, Pagedir, PagedirHL, PagedirHR, PardirHL, PardirHR, Textdir

public class AbstractDirCode
extends AbstractCode

This is the abstract base class for primitives acquiring a direction.

Version:

$Revision:4411 $

Author:

Gerd Neugebauer

See Also:

Serialized Form

Field Summary

protected static long

serialVersionUID The constant serialVersionUID contains the id for serialization.

Constructor Summary

AbstractDirCode(CodeToken token)
Creates a new object.

Method Summary

protected Direction

scanDir(TokenSource source, Context context) Scan a direction specification.

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

execute, 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

Field Detail

serialVersionUID

protected static final long serialVersionUID

The constant serialVersionUID contains the id for serialization.

See Also:

Constant Field Values

Constructor Detail

AbstractDirCode

public AbstractDirCode(CodeToken token)

Creates a new object.

Parameters:

token - the initial token for the primitive

Method Detail

scanDir

protected Direction scanDir(TokenSource source,
                            Context context)
                     throws HelpingException,
                            TypesetterException

Scan a direction specification.

Parameters:

source - the source for new tokens

context - the interpreter context

Returns:

the direction or null

Throws:

HelpingException - in case of an error

TypesetterException - in case of an error in the typesetter