Class Par

  extended byde.dante.extex.interpreter.type.AbstractCode
      extended byde.dante.extex.interpreter.primitives.typesetter.paragraph.Par
All Implemented Interfaces:
Code, Localizable,

public class Par
extends AbstractCode

This class provides an implementation for the primitive \par.

The Primitive \par

The primitive \par signals the end of a paragraph. If ExTeX is in a horizontal mode then the preceding material is typeset and the paragraph is added to the vertical list. ExTeX goes into a vertical mode afterwards.

If ExTeX is in a vertical mode then this primitive is simply ignored.

The scanner rules of TeX determine that the macro \par is inserted for any number of subsequent empty lines. This means that in a normal text there might be a lot of invocations of \par even if none of them is written explicitly.


The formal description of this primitive is the following:
      → \par  


    abc \par  def 

The Dimen Parameter \parindent

The dimen parameter \parindent contains indentation to be applied for each paragraph.


The formal description of this primitive is the following:
      → \parindent ⟨equals⟩ ⟨dimen⟩  



$Revision: 1.13 $
Gerd Neugebauer
See Also:
Serialized Form

Field Summary
protected static long serialVersionUID
          The constant serialVersionUID contains the id for serialization.
Constructor Summary
Par(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


protected static final long serialVersionUID
The constant serialVersionUID contains the id for serialization.

See Also:
Constant Field Values
Constructor Detail


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

name - the name for debugging
Method Detail


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
execute in class AbstractCode
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)