org.extex.unit.omega.dir
Class Textdir

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

All Implemented Interfaces:

java.io.Serializable, Code

public class Textdir
extends AbstractDirCode

This class provides an implementation for the primitive \textdir.

The Primitive \textdir

TODO missing documentation

Syntax

The formal description of this primitive is the following:

    ⟨textdir⟩
      → \textdir ⟨direction⟩

    ⟨direction⟩
      → [TLRB][TLRB][TLRB]  

Examples

 \textdir TRT  

Version:

$Revision:4411 $

Author:

Gerd Neugebauer

See Also:

Serialized Form

Field Summary

protected static long

serialVersionUID The field serialVersionUID contains the version number for serialization.

Constructor Summary

Textdir(CodeToken token)
Creates a new object.

Method Summary

void	execute(Flags prefix, Context context, TokenSource source, Typesetter typesetter) This method takes the first token and executes it. The result is placed on the stack. This operation might have side effects. To execute a token it might be necessary to consume further tokens.

Methods inherited from class org.extex.unit.omega.dir.AbstractDirCode

scanDir

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

Field Detail

serialVersionUID

protected static final long serialVersionUID

The field serialVersionUID contains the version number for serialization.

See Also:

Constant Field Values

Constructor Detail

Textdir

public Textdir(CodeToken token)

Creates a new object.

Parameters:

token - the initial token for the primitive

Method Detail

execute

public void execute(Flags prefix,
                    Context context,
                    TokenSource source,
                    Typesetter typesetter)
             throws HelpingException,
                    ConfigurationException,
                    TypesetterException

This method takes the first token and executes it. The result is placed on the stack. This operation might have side effects. To execute a token it might be necessary to consume further tokens.

Specified by:

execute in interface Code

Overrides:

execute in class AbstractCode

Parameters:

prefix - the prefix controlling the execution

context - the interpreter context

source - the token source

typesetter - the typesetter

Throws:

HelpingException - in case of an error

ConfigurationException - in case of an configuration error

TypesetterException - in case of an error in the typesetter

See Also:

AbstractCode.execute( org.extex.interpreter.Flags, org.extex.interpreter.context.Context, org.extex.interpreter.TokenSource, org.extex.typesetter.Typesetter)