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com.hexidec.ekit.component.parser
Class ContentModel  

java.lang.Object
  com.hexidec.ekit.component.parser.ContentModel

All Implemented Interfaces:

java.io.Serializable

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public final class ContentModel

extends java.lang.Object

implements java.io.Serializable

A representation of a content model. A content model is basically a restricted BNF expression. It is restricted in the sense that it must be deterministic. This means that you don't have to represent it as a finite state automata.

See Annex H on page 556 of the SGML handbook for more information.

Version:

1.8,12/03/01

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Field Summary
java.lang.Object	content           The content.
ContentModel	next           The next content model (in a ',', '|' or '&' expression).
int	type           Type.
private  boolean[]	val
private  boolean[]	valSet

 

Constructor Summary

ContentModel()

ContentModel(Element content)           Create a content model for an element.

ContentModel(int type, ContentModel content)           Create a content model of a particular type.

ContentModel(int type, java.lang.Object content, ContentModel next)           Create a content model of a particular type.

 

Method Summary
boolean	empty()           Return true if the content model could match an empty input stream.
Element	first()           Return the element that must be next.
boolean	first(java.lang.Object token)           Return true if the token could potentially be the first token in the input stream.
void	getElements(java.util.Vector elemVec)           Update elemVec with the list of elements that are part of the this contentModel.
java.lang.String	toString()           Convert to a string.

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

 

Field Detail

type

public int type

Type. Either '*', '?', '+', ',', '|', '&'.

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content

public java.lang.Object content

The content. Either an Element or a ContentModel.

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next

public ContentModel next

The next content model (in a ',', '|' or '&' expression).

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valSet

private boolean[] valSet

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val

private boolean[] val

Constructor Detail

ContentModel

public ContentModel()

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ContentModel

public ContentModel(Element content)

Create a content model for an element.

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ContentModel

public ContentModel(int type,
                    ContentModel content)

Create a content model of a particular type.

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ContentModel

public ContentModel(int type,
                    java.lang.Object content,
                    ContentModel next)

Create a content model of a particular type.

Method Detail

empty

public boolean empty()

Return true if the content model could match an empty input stream.

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getElements

public void getElements(java.util.Vector elemVec)

Update elemVec with the list of elements that are part of the this contentModel.

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first

public boolean first(java.lang.Object token)

Return true if the token could potentially be the first token in the input stream.

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first

public Element first()

Return the element that must be next.

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toString

public java.lang.String toString()

Convert to a string.

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