de.dante.extex.interpreter.primitives.typesetter.undo
Class Unskip
java.lang.Object
de.dante.extex.interpreter.type.AbstractCode
de.dante.extex.interpreter.primitives.typesetter.undo.Unskip
- All Implemented Interfaces:
- Code, Localizable, java.io.Serializable
- public class Unskip
- extends AbstractCode
This class provides an implementation for the primitive
\unskip.
The Primitive \unskip
The primitive \unskip inspects the current list and
removes the last node if it is a glue node. This includes leader nodes.
If the current list is empty an error is raised.
Syntax
The formal description of this primitive is the following:
⟨unskip⟩
→ \unskip
Examples
\unskip
- Version:
- $Revision: 1.9 $
- Author:
- Gerd Neugebauer
- See Also:
- Serialized Form
|
Field Summary |
protected static long |
serialVersionUID
The constant serialVersionUID contains the id for serialization. |
|
Constructor Summary |
Unskip(java.lang.String name)
Creates a new object. |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
serialVersionUID
protected static final long serialVersionUID
- The constant serialVersionUID contains the id for serialization.
- See Also:
- Constant Field Values
Unskip
public Unskip(java.lang.String name)
- Creates a new object.
- Parameters:
name - the name for debugging
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)