de.dante.extex.interpreter.primitives.register.skip
Class Gluestretch

java.lang.Object
  de.dante.extex.interpreter.type.AbstractCode
      de.dante.extex.interpreter.primitives.register.skip.Gluestretch

All Implemented Interfaces:

Code, CountConvertible, DimenConvertible, Localizable, java.io.Serializable, Theable

public class Gluestretch

extends AbstractCode

implements CountConvertible, DimenConvertible, Theable

This class provides an implementation for the primitive \gluestretch.

The Primitive \gluestretch

The primitive \gluestretch translates a stretch part of a glue value into a length. The stretch order is stripped and just the size is preserved. The unit is changed to pt. For instance, if the value considered is 8pt plus 1.23 fil then \gluestretch returns 1.23 pt.

The primitive \gluestretch can be used wherever a length is expected. The primitive is also applicable to \the.

Syntax

    ⟨gluestretch⟩
      → \gluestretch ⟨glue⟩ 

Examples

   \gluestretch\skip1  

Version:

$Revision: 1.10 $

Author:

Gerd Neugebauer

See Also:

Serialized Form

serialVersionUID

protected static final long serialVersionUID

The constant serialVersionUID contains the id for serialization.

See Also:

Constant Field Values

Gluestretch

public Gluestretch(java.lang.String name)

Creates a new object.

Parameters:

name - the name for debugging

convertCount

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

Description copied from interface: CountConvertible

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:

InterpreterException - in case of an error

See Also:

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

convertDimen

public long convertDimen(Context context,
                         TokenSource source,
                         Typesetter typesetter)
                  throws InterpreterException

Description copied from interface: DimenConvertible

This method converts a register into a dimen. 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. The return value is the length in scaled points.

Specified by:

convertDimen in interface DimenConvertible

Parameters:

context - the interpreter context

source - the source for new tokens

typesetter - the typesetter to use for conversion

Returns:

the converted value in sp

Throws:

InterpreterException - in case of an error

See Also:

DimenConvertible.convertDimen( de.dante.extex.interpreter.context.Context, de.dante.extex.interpreter.TokenSource, de.dante.extex.typesetter.Typesetter)

the

public Tokens the(Context context,
                  TokenSource source,
                  Typesetter typesetter)
           throws InterpreterException

Description copied from interface: Theable

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:

InterpreterException - in case of an error

See Also:

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