org.extex.unit.etex.group
Class Currentgrouptype

java.lang.Object
  org.extex.interpreter.type.AbstractCode
      org.extex.unit.etex.group.Currentgrouptype

All Implemented Interfaces:

java.io.Serializable, CountConvertible, Code, Theable

public class Currentgrouptype
extends AbstractCode
implements CountConvertible, Theable

This class provides an implementation for the primitive \currentgrouptype.

The Count Primitive \currentgrouptype

The count primitive \currentgrouptype is a read-only count register. It provides access to the current group type. This group type is characterized according to the following list:

0	bottom level (no group)
1	simple group
2	hbox group
3	adjusted hbox group
4	vbox group
5	vtop group
6	align group
7	no align group
8	output group
9	math group
10	disc group
11	insert group
12	vcenter group
13	math choice group
14	semi simple group
15	math shift group
16	math left group

Syntax

The formal description of this primitive is the following:

    ⟨currentgrouptype⟩
      → \currentgrouptype  

Examples

    \count0=\currentgrouptype  

    \showthe\currentgrouptype  

Version:

$Revision:4435 $

Author:

Gerd Neugebauer

See Also:

Serialized Form

Field Summary

protected static long

serialVersionUID The field serialVersionUID contains the id for serialization.

Constructor Summary

Currentgrouptype(CodeToken token)
Creates a new object.

Method Summary

long	convertCount(Context context, TokenSource source, Typesetter typesetter) This method converts a register into a count.
Tokens	the(Context context, TokenSource source, Typesetter typesetter) This method is the getter for the description of the primitive.

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 field serialVersionUID contains the id for serialization.

See Also:

Constant Field Values

Constructor Detail

Currentgrouptype

public Currentgrouptype(CodeToken token)

Creates a new object.

Parameters:

token - the initial token for the primitive

Method Detail

convertCount

public long convertCount(Context context,
                         TokenSource source,
                         Typesetter typesetter)
                  throws HelpingException,
                         TypesetterException

This method converts a register into a count. It might be necessary to read further tokens to determine which value to use. For instance an additional register number might be required. In this case the additional arguments Context and TokenSource can be used.

Specified by:

convertCount in interface CountConvertible

Parameters:

context - the interpreter context

source - the source for new tokens

typesetter - the typesetter to use for conversion

Returns:

the converted value

Throws:

HelpingException - in case of an error

TypesetterException - in case of an error in the typesetter

See Also:

CountConvertible.convertCount( org.extex.interpreter.context.Context, org.extex.interpreter.TokenSource, org.extex.typesetter.Typesetter)

the

public Tokens the(Context context,
                  TokenSource source,
                  Typesetter typesetter)
           throws CatcodeException,
                  HelpingException,
                  TypesetterException

This method is the getter for the description of the primitive.

Specified by:

the in interface Theable

Parameters:

context - the interpreter context

source - the source for further tokens to qualify the request

typesetter - the typesetter to use

Returns:

the description of the primitive as list of Tokens

Throws:

CatcodeException - in case of an error in token creation

HelpingException - in case of an error

TypesetterException - in case of an error

See Also:

Theable.the( org.extex.interpreter.context.Context, org.extex.interpreter.TokenSource, org.extex.typesetter.Typesetter)