de.dante.extex.interpreter.primitives.typesetter.spacing
Class Hfi

java.lang.Object
  extended byde.dante.extex.interpreter.type.AbstractCode
      extended byde.dante.extex.interpreter.primitives.typesetter.AbstractHorizontalCode
          extended byde.dante.extex.interpreter.primitives.typesetter.spacing.Hfi
All Implemented Interfaces:
Code, HorizontalSkip, Localizable, java.io.Serializable

public class Hfi
extends AbstractHorizontalCode
implements HorizontalSkip

This class provides an implementation for the primitive \hfi.

The Primitive \hfi

The primitive \hfi inserts a new infinite glue into the output. The value of \hfi is an infinite quantity which is less than \hfil. This means that \hfil or a larger value suppress this glue. On the other side if no greater value is present then this value suppresses any finite value.

This quantity has been introduced by Omega.

Syntax

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

Examples

    \hfi  

Version:
$Revision: 1.11 $
Author:
Gerd Neugebauer
See Also:
Serialized Form

Field Summary
protected static long serialVersionUID
          The constant serialVersionUID contains the id for serialization.
 
Constructor Summary
Hfi(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.
 FixedGlue getGlue(Context context, TokenSource source, Typesetter typesetter)
          This method acquires horizontal glue.´
 
Methods inherited from class de.dante.extex.interpreter.primitives.typesetter.AbstractHorizontalCode
ensureHorizontalMode, switchToHorizontalMode
 
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

Hfi

public Hfi(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)

getGlue

public FixedGlue getGlue(Context context,
                         TokenSource source,
                         Typesetter typesetter)
                  throws InterpreterException
Description copied from interface: HorizontalSkip
This method acquires horizontal glue.´

Specified by:
getGlue in interface HorizontalSkip
Parameters:
context - the interpreter context
source - the source for new tokens
typesetter - the typesetter
Returns:
the amount of skip
Throws:
InterpreterException - in case of an error
See Also:
HorizontalSkip.getGlue( de.dante.extex.interpreter.context.Context, de.dante.extex.interpreter.TokenSource, de.dante.extex.typesetter.Typesetter)