org.extex.unit.tex.math.fraction
Class Abovewithdelims

java.lang.Object
  org.extex.interpreter.type.AbstractCode
      org.extex.unit.tex.math.AbstractMathCode
          org.extex.unit.tex.math.delimiter.AbstractTeXDelimiter
              org.extex.unit.tex.math.fraction.Abovewithdelims

All Implemented Interfaces:

java.io.Serializable, Code

public class Abovewithdelims
extends AbstractTeXDelimiter

This class provides an implementation for the primitive \abovewithdelims.

The Math Primitive \abovewithdelims

The math primitive \abovewithdelims arranges that the material in the math group before it is typeset above the material after the primitive. The two parts are separated by a line of the width given. If the width is less than 0pt then no rule is drawn but the given height is left blank. The construction is enclosed in the delimiters given

If several primitives of type \above, \abovewithdelims, \atop, \atopwithdelims, \over, or \overwithdelims are encountered in the same math group then the result is ambiguous and an error is raised.

If the primitive is used outside of math mode then an error is raised.

Syntax

    ⟨abovewithdelims⟩
       → ⟨math material⟩ \abovewithdelims ... ⟨dimen⟩ ⟨math material⟩  

Examples

    {a\abovewithdelims\delimiter"123456\delimiter"123456 b} 

Version:

$Revision: 4732 $

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

Abovewithdelims

public Abovewithdelims(CodeToken token)

Creates a new object.

Parameters:

token - the initial token for the primitive

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)