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de.dante.extex.interpreter.primitives.group
Class Begingroup

java.lang.Object
  extended byde.dante.extex.interpreter.type.AbstractCode
      extended byde.dante.extex.interpreter.primitives.group.Begingroup
All Implemented Interfaces:
Code, Localizable, java.io.Serializable
public class Begingroup
extends AbstractCode

This class provides an implementation for the primitive \begingroup.

The Primitive \begingroup

The primitive \begingroup starts a new group. The new group inherits all properties from the previous group.

The group is usually ended by a corresponding \endgroup. If the job is completed without encountering a proper \endgroup. then an error is raised.

Syntax

The formal description of this primitive is the following: 
    ⟨begingroup⟩
      → \begingroup

Examples

    \begingroup 123 \endgroup

Version:
$Revision: 1.26 $
Author:
Gerd Neugebauer
See Also:
Serialized Form

Field Summary
protected static long serialVersionUID
          The constant serialVersionUID contains the id for serialization.
 
Constructor Summary
Begingroup(java.lang.String name)
          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 de.dante.extex.interpreter.type.AbstractCode
enableLocalization, getLocalizer, getName, isIf, isOuter, printable, printableControlSequence, readResolve, setName, toString
 
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

Begingroup

public Begingroup(java.lang.String name)
Creates a new object.

Parameters:
name - the name for debugging
Method Detail

execute

public void execute(Flags prefix,
                    Context context,
                    TokenSource source,
                    Typesetter typesetter)
             throws InterpreterException
Description copied from interface: Code
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
Throws:
InterpreterException
See Also:
Code.execute( de.dante.extex.interpreter.Flags, de.dante.extex.interpreter.context.Context, de.dante.extex.interpreter.TokenSource, de.dante.extex.typesetter.Typesetter)
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