org.extex.unit.tex.group
Class Endgroup

java.lang.Object
  org.extex.interpreter.type.AbstractCode
      org.extex.unit.tex.group.Endgroup

All Implemented Interfaces:

java.io.Serializable, Code

public class Endgroup
extends AbstractCode

This class provides an implementation for the primitive \endgroup.

The Primitive \endgroup

The primitive \endgroup closes the current group all properties are reset to the values they had before the group had been entered. A group is usually opened with \begingroup.

If no group has been opened then an error is raised.

Syntax

The formal description of this primitive is the following:

    ⟨endgroup⟩
      → \endgroup  

Examples

    \begingroup 123 \endgroup  

Version:

$Revision: 4732 $

Author:

Gerd Neugebauer

See Also:

Serialized Form

Field Summary

protected static long

serialVersionUID The constant serialVersionUID contains the id for serialization.

Constructor Summary

Endgroup(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.

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 constant serialVersionUID contains the id for serialization.

See Also:

Constant Field Values

Constructor Detail

Endgroup

public Endgroup(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

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

See Also:

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